/* Coastals case study — editorial presentation layer. Existing portfolio palette preserved. */
:root {
  --coastals-ink: #0b0d14;
  --coastals-ink-soft: #151925;
  --coastals-paper: #f3f5f8;
  --coastals-white: #fff;
  --coastals-text: #11141c;
  --coastals-muted: #687080;
  --coastals-line: rgba(17, 20, 28, .10);
  --coastals-soft: #e5e7ea;
  --coastals-blue: #c9ccd1;
  --coastals-max: 1240px;
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body.coastals-page {
  margin: 0;
  background: var(--coastals-paper);
  color: var(--coastals-text);
  font-family: "Manrope", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7
}

.coastals-page img {
  display: block;
  max-width: 100%
}

.coastals-page a {
  color: inherit
}

.coastals-site {
  overflow: hidden
}

/* HERO */
.coastals-hero {
  position: relative;
  background: var(--coastals-ink);
  color: var(--coastals-white);
  padding: 28px 24px 96px
}

.coastals-nav {
  width: min(100%, var(--coastals-max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
  position: relative;
  z-index: 5
}

.coastals-brand {
  font: 600 16px/1 "Instrument Sans", sans-serif;
  text-decoration: none;
  letter-spacing: -.4px
}

.coastals-nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto
}

.coastals-nav-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, .66);
  text-decoration: none
}

.coastals-nav-links a:hover {
  color: #fff
}

.coastals-nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .05);
  font-size: 13px;
  text-decoration: none
}

.coastals-hero-grid {
  width: min(100%, var(--coastals-max));
  margin: 94px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, .72fr);
  gap: 86px;
  align-items: center
}

.coastals-eyebrow,
.section-kicker,
.story-label {
  margin: 0 0 18px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.35px;
  text-transform: uppercase;
  color: var(--coastals-muted)
}

.coastals-eyebrow {
  color: rgba(255, 255, 255, .48)
}

.coastals-hero h1 {
  margin: 0;
  max-width: 820px;
  font: 600 clamp(58px, 7.6vw, 104px)/.92 "Instrument Sans", sans-serif;
  letter-spacing: -1.2px
}

.coastals-hero-intro {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, .68);
  font-size: 17px;
  line-height: 1.75
}

.coastals-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px
}

.coastals-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 0;
  text-decoration: none;
  font: 600 13px/1 "Instrument Sans", sans-serif
}

.coastals-button-light {
  background: #fff;
  color: var(--coastals-ink)
}

.coastals-button-dark {
  background: rgba(255, 255, 255, .05);
  border-color: rgba(255, 255, 255, .18);
  color: #fff
}

.coastals-hero-media {
  min-height: 590px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center
}

.device {
  overflow: hidden;
  background: #fff;
  box-shadow: 0 28px 80px rgba(0, 0, 0, .30)
}

.device img {
  width: 100%;
  height: 100%;
  object-fit: cover
}

.device-hero {
  width: min(100%, 430px);
  border: 10px solid #171a22;
  border-radius: 34px;
  transform: rotate(1.5deg)
}

.device-hero img {
  aspect-ratio: 4/3;
  object-fit: cover
}

.device-floating {
  position: absolute;
  right: -20px;
  bottom: 26px;
  width: 168px;
  border: 8px solid #171a22;
  border-radius: 28px;
  transform: rotate(-3deg)
}

.device-floating img {
  aspect-ratio: 1080/2408
}

.coastals-meta {
  width: min(calc(100% - 48px), var(--coastals-max));
  margin: -42px auto 0;
  position: relative;
  z-index: 6;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(255, 255, 255, .76);
  box-shadow: 0 24px 70px rgba(11, 13, 20, .09);
  backdrop-filter: blur(18px);
  border-radius: 26px;
}

.coastals-meta>div {
  padding: 24px;
  border-right: 1px solid var(--coastals-line)
}

.coastals-meta>div:last-child {
  border-right: 0
}

.coastals-meta span {
  display: block;
  margin-bottom: 6px;
  color: var(--coastals-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase
}

.coastals-meta strong {
  font: 600 15px/1.35 "Instrument Sans", sans-serif
}

/* EDITORIAL SECTIONS */
main {
  width: min(calc(100% - 48px), var(--coastals-max));
  margin: 0 auto
}

.story-section {
  padding: 118px 0;
  border-top: 1px solid var(--coastals-line)
}

.alt-section {
  background: transparent
}

.section-intro {
  display: grid;
  grid-template-columns: 70px minmax(0, 900px);
  gap: 32px;
  margin-bottom: 70px
}

.section-index {
  font: 600 12px/1 "Instrument Sans", sans-serif;
  color: #8a919c;
  padding-top: 7px;
  letter-spacing: 1px
}

.section-intro h2 {
  margin: 0;
  font: 600 clamp(42px, 5.1vw, 50px)/1.01 "Instrument Sans", sans-serif;
  letter-spacing: -1px;
  max-width: 920px
}

.section-lead {
  max-width: 720px;
  color: var(--coastals-muted);
  font-size: 15px;
  line-height: 1.75
}

.story-row,
.research-row,
.concept-row,
.decision-row {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(340px, 1.14fr);
  gap: 74px;
  align-items: center;
  padding: 82px 0;
  border-top: 1px solid var(--coastals-line)
}

.story-row.reverse,
.research-row.reverse,
.concept-row.reverse,
.decision-row.reverse {
  grid-template-columns: minmax(340px, 1.14fr) minmax(0, .86fr)
}

.story-row.reverse .story-copy,
.research-row.reverse .research-copy,
.concept-row.reverse .concept-copy,
.decision-row.reverse .decision-copy {
  order: 2
}

.story-row.reverse .story-visual,
.research-row.reverse .research-visual,
.concept-row.reverse .concept-visual,
.decision-row.reverse .decision-visual {
  order: 1
}

.story-copy h3,
.research-copy h3,
.concept-copy h3,
.decision-copy h3 {
  margin: 0;
  font: 600 clamp(30px, 3.1vw, 46px)/1.05 "Instrument Sans", sans-serif;
  letter-spacing: -.7px
}

.story-copy>p:not(.story-label),
.research-copy>p:not(.story-label),
.concept-copy>p:not(.story-label),
.decision-copy>p:not(.story-label) {
  max-width: 600px;
  color: #596171;
  font-size: 15px;
  line-height: 1.8
}

.story-label {
  color: #7b8491;
  margin-bottom: 16px
}

.story-visual,
.research-visual,
.concept-visual,
.decision-visual {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 420px
}

.story-visual img,
.research-visual img,
.concept-visual img,
.decision-visual img {
  max-height: 650px;
  width: auto;
  max-width: min(100%, 520px);
  object-fit: contain
}

.light-visual {
  background: #e9ebee;
  padding: 40px
}

.phone-visual img,
.research-visual img,
.concept-visual img,
.decision-visual img {
  filter: drop-shadow(0 28px 40px rgba(11, 13, 20, .13))
}

.issue-grid,
.finding-grid,
.learning-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.issue-grid article,
.finding-grid>div,
.learning-row article {
  padding: 30px 28px 34px;
  border-right: 1px solid var(--coastals-line)
}

.issue-grid article:last-child,
.finding-grid>div:last-child {
  border-right: 0
}

.issue-grid span,
.finding-grid span {
  display: block;
  color: #8a919c;
  font: 600 11px/1 "Instrument Sans", sans-serif;
  margin-bottom: 48px
}

.issue-grid h3,
.finding-grid strong {
  margin: 0;
  font: 600 22px/1.15 "Instrument Sans", sans-serif;
  letter-spacing: -.35px
}

.issue-grid p,
.finding-grid p,
.learning-row p {
  margin: 12px 0 0;
  color: var(--coastals-muted);
  font-size: 13px;
  line-height: 1.7
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--coastals-line)
}

.fact-strip>div {
  padding: 28px;
  border-right: 1px solid var(--coastals-line)
}

.fact-strip>div:last-child {
  border-right: 0
}

.fact-strip span {
  display: block;
  color: #8a919c;
  font: 600 11px/1 "Instrument Sans", sans-serif;
  margin-bottom: 28px
}

.fact-strip strong {
  font: 600 19px/1.1 "Instrument Sans", sans-serif
}

.fact-strip p {
  margin: 8px 0 0;
  color: var(--coastals-muted);
  font-size: 13px
}

/* EVIDENCE */
.evidence-block,
.decision-block {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--coastals-line)
}

.evidence-block strong,
.decision-block strong {
  font: 600 14px/1.3 "Instrument Sans", sans-serif
}

.evidence-block p,
.decision-block p {
  margin: 7px 0 0 !important;
  font-size: 14px !important
}

.decision-block {
  border-top: 0;
  padding: 18px;
  background: #e9ebee
}

.result {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--coastals-line);
  display: flex;
  align-items: baseline;
  gap: 14px
}

.result strong {
  font: 600 48px/1 "Instrument Sans", sans-serif;
  letter-spacing: -1px
}

.result span {
  color: var(--coastals-muted);
  font-size: 13px
}

.design-proof {
  margin-top: 28px;
  padding: 18px 20px;
  border-left: 2px solid rgba(17, 20, 28, .22);
  background: rgba(255, 255, 255, .48);
  color: var(--coastals-muted);
  font-size: 13px
}

.design-proof strong {
  color: var(--coastals-text)
}

/* DARK ITERATION */
.dark-section {
  margin-left: calc((min(100vw, 100% - 48px) - var(--coastals-max))/2);
  margin-right: calc((min(100vw, 100% - 48px) - var(--coastals-max))/2);
  padding-left: max(24px, calc((100vw - var(--coastals-max))/2));
  padding-right: max(24px, calc((100vw - var(--coastals-max))/2));
  background: var(--coastals-ink);
  color: #fff;
  border-top: 0
}

.dark-intro .section-index,
.dark-intro .section-kicker {
  color: rgba(255, 255, 255, .44)
}

.dark-intro h2 {
  color: #fff
}

.dark-section .story-label {
  color: rgba(255, 255, 255, .42)
}

.iteration-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px
}

.iteration-pair figure {
  margin: 0;
  padding: 42px;
  background: #151925
}

.iteration-pair img {
  width: min(100%, 330px);
  margin: auto
}

.iteration-pair figcaption {
  margin-top: 22px;
  color: #000;
  font-size: 17px;
}

.calendar-problem {
  margin-top: 18px;
  padding: 38px 0;
  border-top: 1px solid rgba(255, 255, 255, .13);
  border-bottom: 1px solid rgba(255, 255, 255, .13)
}

.calendar-evidence {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  border-bottom: 1px solid rgba(255, 255, 255, .12)
}

.calendar-evidence>div {
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, .12)
}

.calendar-evidence>div:last-child {
  border-right: 0
}

.calendar-evidence strong {
  font: 600 15px/1.2 "Instrument Sans", sans-serif
}

.calendar-evidence p,
.dark-outcome {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
  line-height: 1.7
}

.dark-outcome {
  margin-top: 20px
}

.dark-story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid rgba(255, 255, 255, .12)
}

.dark-story-grid article {
  padding: 40px 28px 44px;
  border-right: 1px solid rgba(255, 255, 255, .12)
}

.dark-story-grid article:last-child {
  border-right: 0
}

.dark-story-grid h3 {
  margin: 0;
  font: 600 25px/1.12 "Instrument Sans", sans-serif;
  letter-spacing: -.4px
}

.dark-story-grid p {
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
  line-height: 1.7
}

.dark-result {
  margin: 24px 0 8px;
  font: 600 35px/1 "Instrument Sans", sans-serif;
  letter-spacing: -.7px
}

/* SCREENS */
.screens-section {
  padding-bottom: 132px
}

.screen-story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 42px 28px;
  border-top: 1px solid var(--coastals-line);
  padding-top: 58px
}

.screen-story-grid figure {
  margin: 0;
  text-align: center
}

.screen-device {
  display: flex;
  justify-content: center
}

.screen-device img {
  width: min(100%, 270px);
  filter: drop-shadow(0 22px 32px rgba(11, 13, 20, .13))
}

.screen-story-grid figcaption {
  margin-top: 18px;
  font: 600 13px/1 "Instrument Sans", sans-serif
}

/* METRICS */
.metric-editorial {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.metric-editorial>div {
  padding: 36px 28px;
  border-right: 1px solid var(--coastals-line)
}

.metric-editorial>div:last-child {
  border-right: 0
}

.metric-editorial strong {
  display: block;
  font: 600 clamp(45px, 5vw, 66px)/.95 "Instrument Sans", sans-serif;
  letter-spacing: -1.5px
}

.metric-editorial span {
  display: block;
  margin-top: 16px;
  font: 600 13px/1.25 "Instrument Sans", sans-serif
}

.metric-editorial p {
  margin: 6px 0 0;
  color: var(--coastals-muted);
  font-size: 12px
}

.metric-editorial.supporting {
  margin-top: 18px
}

.metric-editorial.supporting strong {
  font-size: 45px
}

.funnel-editorial {
  margin-top: 18px;
  padding: 30px 0;
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.funnel-editorial>div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--coastals-line);
  font-size: 14px
}

.funnel-editorial>div:last-of-type {
  border-bottom: 0
}

.funnel-editorial span {
  font: 600 14px/1 "Instrument Sans", sans-serif
}

.funnel-editorial>p:last-child {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--coastals-muted);
  font-size: 13px
}

.payment-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 48px;
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.payment-row>div {
  padding: 30px;
  border-right: 1px solid var(--coastals-line)
}

.payment-row>div:last-child {
  border-right: 0
}

.payment-row p:not(.story-label) {
  color: var(--coastals-muted);
  font-size: 13px;
  line-height: 1.75
}

.payment-row strong {
  color: var(--coastals-text)
}

/* FEEDBACK + VALIDATION */
.quote-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.quote-list blockquote {
  margin: 0;
  padding: 30px;
  border-right: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.quote-list blockquote:nth-child(2n) {
  border-right: 0
}

.quote-list blockquote:nth-last-child(-n+2) {
  border-bottom: 0
}

.quote-list strong {
  font: 600 17px/1.2 "Instrument Sans", sans-serif
}

.quote-list span {
  display: block;
  margin: 10px 0;
  letter-spacing: 2px;
  font-size: 12px
}

.quote-list p {
  margin: 0;
  color: var(--coastals-muted);
  font-size: 13px;
  line-height: 1.75
}

.roadmap-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 58px;
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.roadmap-row>div {
  padding: 34px;
  border-right: 1px solid var(--coastals-line)
}

.roadmap-row>div:last-child {
  border-right: 0
}

.roadmap-row h3 {
  margin: 0;
  font: 600 29px/1.05 "Instrument Sans", sans-serif;
  letter-spacing: -.5px
}

.roadmap-row p:not(.story-label) {
  color: var(--coastals-muted);
  font-size: 13px;
  line-height: 1.7
}

.roadmap-row strong {
  color: var(--coastals-text)
}

.validation-list {
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line)
}

.validation-list article {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--coastals-line)
}

.validation-list article:last-child {
  border-bottom: 0
}

.validation-list>article>span {
  font: 600 12px/1 "Instrument Sans", sans-serif;
  color: #8a919c;
  padding-top: 6px
}

.validation-list h3 {
  margin: 0;
  font: 600 22px/1.2 "Instrument Sans", sans-serif;
  letter-spacing: -.35px
}

.validation-list p {
  max-width: 780px;
  margin: 9px 0 0;
  color: var(--coastals-muted);
  font-size: 13px;
  line-height: 1.75
}

/* CLOSING */
.closing-section {
  padding-bottom: 80px
}

.learning-row {
  border-color: rgba(255, 255, 255, .13)
}

.learning-row article {
  border-color: rgba(255, 255, 255, .13)
}

.learning-row article:last-child {
  border-right: 0
}

.learning-row h3 {
  margin: 0;
  font: 600 23px/1.15 "Instrument Sans", sans-serif
}

.learning-row p {
  color: rgba(255, 255, 255, .58)
}

.closing-statement {
  margin-top: 72px;
  padding: 56px 0 20px;
  border-top: 1px solid rgba(255, 255, 255, .13)
}

.closing-statement .story-label {
  color: rgba(255, 255, 255, .42)
}

.closing-statement h2 {
  max-width: 900px;
  margin: 0;
  font: 600 clamp(44px, 6vw, 78px)/.98 "Instrument Sans", sans-serif;
  letter-spacing: -1.1px
}

.closing-statement>p:not(.story-label) {
  max-width: 720px;
  color: rgba(255, 255, 255, .62);
  font-size: 15px
}

.coastals-footer {
  width: min(calc(100% - 48px), var(--coastals-max));
  margin: 0 auto;
  padding: 28px 0 50px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--coastals-muted);
  font-size: 11px
}

@media(max-width:980px) {
  .coastals-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    margin-top: 70px
  }

  .coastals-hero-media {
    min-height: 520px
  }

  .story-row,
  .research-row,
  .concept-row,
  .decision-row,
  .story-row.reverse,
  .research-row.reverse,
  .concept-row.reverse,
  .decision-row.reverse {
    grid-template-columns: 1fr;
    gap: 42px
  }

  .story-row.reverse .story-copy,
  .research-row.reverse .research-copy,
  .concept-row.reverse .concept-copy,
  .decision-row.reverse .decision-copy,
  .story-row.reverse .story-visual,
  .research-row.reverse .research-visual,
  .concept-row.reverse .concept-visual,
  .decision-row.reverse .decision-visual {
    order: initial
  }

  .calendar-evidence {
    grid-template-columns: 1fr 1fr
  }

  .calendar-evidence>div:nth-child(2) {
    border-right: 0
  }

  .calendar-evidence>div:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, .12)
  }

  .dark-story-grid {
    grid-template-columns: 1fr
  }

  .dark-story-grid article {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .12)
  }

  .dark-story-grid article:last-child {
    border-bottom: 0
  }
}

@media(max-width:760px) {
  .coastals-hero {
    padding-left: 18px;
    padding-right: 18px
  }

  .coastals-nav-links {
    display: none
  }

  .coastals-nav-cta {
    margin-left: auto
  }

  .coastals-hero h1 {
    font-size: clamp(54px, 15vw, 84px)
  }

  .coastals-hero-intro {
    font-size: 15px
  }

  .coastals-hero-media {
    min-height: 440px
  }

  .device-hero {
    width: min(100%, 350px)
  }

  .device-floating {
    width: 130px;
    right: 0
  }

  .coastals-meta {
    width: min(calc(100% - 36px), var(--coastals-max));
    grid-template-columns: 1fr 1fr
  }

  .coastals-meta>div:nth-child(2) {
    border-right: 0
  }

  .coastals-meta>div:nth-child(-n+2) {
    border-bottom: 1px solid var(--coastals-line)
  }

  main {
    width: min(calc(100% - 36px), var(--coastals-max))
  }

  .story-section {
    padding: 84px 0
  }

  .section-intro {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 42px
  }

  .section-intro h2 {
    font-size: 42px
  }

  .issue-grid,
  .finding-grid,
  .fact-strip,
  .metric-editorial,
  .payment-row,
  .quote-list,
  .roadmap-row,
  .learning-row {
    grid-template-columns: 1fr
  }

  .issue-grid article,
  .finding-grid>div,
  .fact-strip>div,
  .metric-editorial>div,
  .payment-row>div,
  .quote-list blockquote,
  .roadmap-row>div,
  .learning-row article {
    border-right: 0;
    border-bottom: 1px solid var(--coastals-line)
  }

  .issue-grid article:last-child,
  .finding-grid>div:last-child,
  .fact-strip>div:last-child,
  .metric-editorial>div:last-child,
  .payment-row>div:last-child,
  .quote-list blockquote:last-child,
  .roadmap-row>div:last-child,
  .learning-row article:last-child {
    border-bottom: 0
  }

  .issue-grid span,
  .finding-grid span {
    margin-bottom: 24px
  }

  .iteration-pair {
    grid-template-columns: 1fr
  }

  .calendar-evidence {
    grid-template-columns: 1fr
  }

  .calendar-evidence>div,
  .calendar-evidence>div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .12)
  }

  .calendar-evidence>div:last-child {
    border-bottom: 0
  }

  .screen-story-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 14px
  }

  .screen-device img {
    max-width: 210px
  }

  .closing-statement {
    margin-top: 48px
  }

  .coastals-footer {
    width: min(calc(100% - 36px), var(--coastals-max))
  }
}

@media(max-width:500px) {
  .coastals-meta {
    grid-template-columns: 1fr
  }

  .coastals-meta>div {
    border-right: 0;
    border-bottom: 1px solid var(--coastals-line)
  }

  .coastals-meta>div:last-child {
    border-bottom: 0
  }

  .screen-story-grid {
    grid-template-columns: 1fr
  }

  .screen-device img {
    max-width: 250px
  }
}

/* =========================================================
   Coastals editorial refinement — clean white cards + clearer hierarchy
   ========================================================= */
.coastals-hero h1 {
  color: #83c6e8
}

.coastals-button-light {
  background: #fff !important;
  color: var(--coastals-ink) !important;
  border-color: #fff !important
}

/* White editorial section cards */
main>.story-section:not(.dark-section) {
  margin: 32px 0;
  padding: 78px 58px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 24px 70px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

main>.story-section:not(.dark-section) .story-row,
main>.story-section:not(.dark-section) .research-row,
main>.story-section:not(.dark-section) .concept-row,
main>.story-section:not(.dark-section) .decision-row {
  border-top-color: rgba(17, 20, 28, .07)
}

main>.story-section:not(.dark-section) .issue-grid,
main>.story-section:not(.dark-section) .finding-grid,
main>.story-section:not(.dark-section) .fact-strip,
main>.story-section:not(.dark-section) .metric-editorial,
main>.story-section:not(.dark-section) .quote-list,
main>.story-section:not(.dark-section) .roadmap-row,
main>.story-section:not(.dark-section) .validation-list {
  border-color: transparent
}

/* Research friction cards: all four in one row */
.finding-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  border: 0;
  margin-top: 34px
}

.finding-grid>div {
  min-height: 190px;
  padding: 25px 24px 24px;
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 38px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.finding-grid span {
  margin-bottom: 30px
}

/* Small editorial cards inside regular sections */
.issue-grid {
  gap: 14px;
  border: 0;
  margin-top: 34px
}

.issue-grid article,
.fact-strip>div,
.evidence-block,
.decision-block,
.design-proof,
.payment-row>div {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.issue-grid article {
  min-height: 220px
}

.fact-strip {
  gap: 14px;
  border: 0;
  margin-top: 18px
}

.fact-strip>div {
  border-right: 1px solid rgba(17, 20, 28, .08) !important
}

/* Full-width dark iteration section */
main>.dark-section {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  padding: 96px max(24px, calc((100vw - var(--coastals-max))/2)) 110px;
  border-radius: 0;
}

main>.dark-section .section-intro,
main>.dark-section .iteration-pair,
main>.dark-section .calendar-problem,
main>.dark-section .dark-story-grid {
  max-width: var(--coastals-max);
  margin-left: auto;
  margin-right: auto
}

.iteration-pair {
  gap: 16px
}

.iteration-pair figure {
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 24px;
  background: #f1f1f1;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .06);
}

.calendar-problem {
  border: 0;
  padding: 38px 0 0
}

.calendar-evidence {
  border: 0;
  gap: 14px
}

.calendar-evidence>div {
  min-height: 185px;
  padding: 25px;
  border: 1px solid rgba(255, 255, 255, .10) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .055);
  box-shadow: 0 18px 45px rgba(0, 0, 0, .14), inset 0 1px 0 rgba(255, 255, 255, .05);
}

.dark-story-grid {
  border: 0;
  gap: 14px
}

.dark-story-grid article {
  min-height: 230px;
  border: 1px solid rgba(255, 255, 255, .10) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .055);
  box-shadow: 0 18px 45px rgba(0, 0, 0, .14), inset 0 1px 0 rgba(255, 255, 255, .05);
}

/* Interface design: left/right editorial carousel */
.interface-carousel {
  margin-top: 12px
}

.interface-carousel .showcase-carousel__viewport {
  padding: 10px 0 34px;
  mask-image: none
}

.interface-carousel .showcase-carousel__track {
  gap: 18px
}

.interface-carousel .showcase-carousel__slide {
  flex: 0 0 100%;
  min-height: 600px;
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(300px, .72fr);
  align-items: center;
  gap: 70px;
  padding: 52px 62px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 28px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 24px 65px rgba(11, 13, 20, .08), inset 0 1px 0 rgba(255, 255, 255, .95);
  transform: none;
  opacity: 1;
}

.interface-slide-copy h3 {
  margin: 0;
  max-width: 560px;
  font: 600 clamp(32px, 4vw, 54px)/1.02 "Instrument Sans", sans-serif;
  letter-spacing: -.8px
}

.interface-slide-copy>p:not(.story-label) {
  max-width: 520px;
  margin: 22px 0 0;
  color: var(--coastals-muted);
  font-size: 14px;
  line-height: 1.8
}

.interface-slide-media {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px
}

.interface-slide-media img {
  height: min(540px, 52vw);
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 28px 40px rgba(11, 13, 20, .14))
}

.interface-carousel .showcase-carousel__controls {
  margin-top: 4px
}

.interface-carousel .showcase-carousel__buttons {
  gap: 8px
}

.interface-carousel .showcase-carousel__dots {
  margin-top: 4px
}

/* Phase 1 metrics as individual cards */
.metric-editorial {
  border: 0;
  gap: 14px
}

.metric-editorial>div {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 40px rgba(11, 13, 20, .05), inset 0 1px 0 rgba(255, 255, 255, .92);
}

.metric-editorial.supporting {
  margin-top: 14px
}

.metric-editorial.supporting>div {
  border-radius: 22px
}

.funnel-editorial {
  padding: 28px 30px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 40px rgba(11, 13, 20, .05), inset 0 1px 0 rgba(255, 255, 255, .92);
}

.payment-row {
  gap: 14px;
  border: 0
}

.payment-row>div {
  border-right: 1px solid rgba(17, 20, 28, .08) !important;
  padding: 30px
}

/* Feedback + Phase 2 roadmap cards */
.quote-list {
  gap: 14px;
  border: 0
}

.quote-list blockquote {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 40px rgba(11, 13, 20, .05), inset 0 1px 0 rgba(255, 255, 255, .92);
}

.roadmap-row {
  gap: 14px;
  border: 0;
  margin-top: 34px
}

.roadmap-row>div {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 40px rgba(11, 13, 20, .05), inset 0 1px 0 rgba(255, 255, 255, .92);
}

/* Design validation: exactly three visible cards in the first row */
.validation-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  border: 0;
}

.validation-list article {
  display: block;
  min-height: 250px;
  padding: 28px;
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 16px 40px rgba(11, 13, 20, .05), inset 0 1px 0 rgba(255, 255, 255, .92);
}

.validation-list>article>span {
  display: block;
  padding: 0;
  margin-bottom: 28px
}

.validation-list h3 {
  font-size: 22px
}

/* What I learned: full-width ink section */
main>.closing-section {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-radius: 0;
  padding-left: max(24px, calc((100vw - var(--coastals-max))/2));
  padding-right: max(24px, calc((100vw - var(--coastals-max))/2));
  background: var(--coastals-ink);
}

main>.closing-section .section-intro,
main>.closing-section .learning-row,
main>.closing-section .closing-statement {
  max-width: var(--coastals-max);
  margin-left: auto;
  margin-right: auto
}

.learning-row {
  gap: 14px;
  border: 0
}

.learning-row article {
  border: 1px solid rgba(255, 255, 255, .10) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .055);
  padding: 30px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, .14), inset 0 1px 0 rgba(255, 255, 255, .05)
}

@media(max-width:980px) {
  main>.story-section:not(.dark-section) {
    padding: 68px 34px
  }

  .finding-grid {
    grid-template-columns: 1fr 1fr
  }

  .interface-carousel .showcase-carousel__slide {
    grid-template-columns: 1fr .75fr;
    gap: 34px;
    padding: 42px
  }

  .validation-list {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:760px) {
  main>.story-section:not(.dark-section) {
    margin: 20px 0;
    padding: 58px 22px;
    border-radius: 24px
  }

  .finding-grid {
    grid-template-columns: 1fr
  }

  main>.dark-section,
  main>.closing-section {
    padding-left: 18px;
    padding-right: 18px
  }

  .interface-carousel .showcase-carousel__slide {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 34px 24px;
    gap: 20px
  }

  .interface-slide-media {
    min-height: 380px
  }

  .interface-slide-media img {
    height: 390px
  }

  .validation-list {
    grid-template-columns: 1fr
  }
}

/* =========================================================
   Coastals refinement v3 — section separation, Apple-style rhythm
   ========================================================= */
body.coastals-page {
  background: var(--coastals-paper)
}

/* The page itself is the canvas. Sections are bands, not giant cards. */
main {
  width: 100%;
  max-width: none;
  margin: 0
}

main>.story-section:not(.dark-section) {
  width: 100%;
  margin: 0;
  padding: 118px 24px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: var(--coastals-paper);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  position: relative;
}

main>.story-section:not(.dark-section)::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 1px;
  background: var(--coastals-line);
}

main>.story-section:not(.dark-section)>* {
  width: min(100%, var(--coastals-max));
  margin-left: auto;
  margin-right: auto;
}

/* Alternate full-width bands, so the reader always knows where one section ends. */
main>#context,
main>#solution,
main>#screens {
  background: #fff
}

main>#research,
main>#design,
main>#metrics,
main>#feedback,
main>#validation {
  background: var(--coastals-paper)
}

/* Context: the section itself carries the white surface, so its supporting facts stay editorial rather than becoming cards. */
main>#context .issue-grid,
main>#context .fact-strip {
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line);
  box-shadow: none;
  background: transparent;
}

main>#context .issue-grid article,
main>#context .fact-strip>div {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  border-color: var(--coastals-line) !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Research: four friction/opportunity cards sit directly on the grey canvas. */
main>#research .finding-grid {
  background: transparent
}

main>#research .finding-grid>div {
  background: rgba(255, 255, 255, .82)
}

/* Light editorial sections should not stack white cards over white backgrounds. */
main>#solution .result,
main>#design .decision-block,
main>#design .design-proof {
  background: transparent;
  box-shadow: none
}

main>#solution .result {
  border-top: 1px solid var(--coastals-line)
}

main>#design .decision-block {
  border: 1px solid var(--coastals-line);
  border-radius: 20px
}

main>#design .design-proof {
  border: 1px solid var(--coastals-line);
  border-radius: 18px
}

/* Iteration remains a true 100% dark chapter, with only the small evidence cards floating inside it. */
main>#iteration {
  width: 100%;
  margin: 0;
  border-radius: 0
}

/* Interface: white section + editorial carousel. No card inside a white section. */
main>#screens .interface-carousel .showcase-carousel__slide {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 46px 0;
}

main>#screens .interface-carousel .showcase-carousel__viewport {
  padding-left: 0;
  padding-right: 0
}

main>#screens .interface-slide-media img {
  filter: drop-shadow(0 28px 40px rgba(11, 13, 20, .12))
}

/* Metrics, feedback and validation: cards live on grey sections, never inside another white card. */
main>#metrics .metric-editorial>div,
main>#metrics .funnel-editorial,
main>#metrics .payment-row>div,
main>#feedback .quote-list blockquote,
main>#feedback .roadmap-row>div,
main>#validation .validation-list article {
  background: rgba(255, 255, 255, .88);
}

/* Restore clean section boundaries around internal card groups. */
main>#metrics .metric-editorial,
main>#feedback .quote-list,
main>#feedback .roadmap-row,
main>#validation .validation-list {
  border: 0
}

/* What I learned is a full-width chapter, not a card. */
main>#learnings,
main>.closing-section {
  width: 100%;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

@media(max-width:760px) {
  main>.story-section:not(.dark-section) {
    padding: 82px 18px
  }

  main>.story-section:not(.dark-section)::before {
    left: 18px;
    right: 18px
  }

  main>#screens .interface-carousel .showcase-carousel__slide {
    padding: 30px 0
  }
}

/* =========================================================
   Coastals refinement v4 — rounded section cards + grey rhythm
   ========================================================= */
body.coastals-page {
  background: var(--coastals-paper)
}

/* Keep the grey canvas visible between every major section. */
main {
  width: min(calc(100% - 48px), 1380px);
  max-width: 1380px;
  margin: 0 auto;
}

/* Every light major section is its own white rounded surface. */
main>.story-section:not(.dark-section) {
  width: 100%;
  margin: 34px 0;
  padding: 78px 58px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96);
  position: relative;
  overflow: hidden;
}

/* Do not draw fake dividers inside a section. The grey gap outside the card is the divider. */
main>.story-section:not(.dark-section)::before {
  display: none
}

/* Context uses three distinct white surfaces: problem, opportunity, and the evidence group. */
main>#context {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 34px 0 0;
  overflow: visible;
}

main>#context>.section-intro {
  padding: 0 58px;
  margin-bottom: 34px;
}

main>#context>.story-row {
  margin: 0 0 34px;
  padding: 52px 58px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96);
}

main>#context>.issue-grid-wrap {
  display: block
}

main>#context>.issue-grid,
main>#context>.fact-strip {
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96);
}

main>#context>.issue-grid {
  margin: 0;
  padding: 34px;
}

main>#context>.fact-strip {
  margin: 18px 0 0;
  padding: 22px 34px;
}

main>#context>.issue-grid article,
main>#context>.fact-strip>div {
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* Other light sections: content cards sit directly inside the section card. */
main>.story-section:not(#context):not(.dark-section) {
  display: block;
  border: none;
  background: none;
}

main>.story-section:not(#context):not(.dark-section) .section-intro {
  margin-bottom: 48px
}

/* Research: four insight cards remain cards inside the white research section. */
main>#research .finding-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 38px;
  border: 0;
  padding: 0;
  background: transparent;
}

main>#research .finding-grid>div {
  min-height: 190px;
  padding: 25px 24px 24px;
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* Solution/design internal cards remain subtle, never full-width containers. */
main>#solution .concept-row,
main>#design .decision-row {
  border-top: 1px solid var(--coastals-line);
  padding-top: 48px;
}

main>#solution .result,
main>#design .decision-block,
main>#design .design-proof {
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 22px;
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* Dark chapters remain true full-width sections. Cards live inside them. */
main>.dark-section {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-radius: 0;
}

/* Interface carousel: the section is the white surface; slides have no card treatment. */
main>#screens .interface-carousel .showcase-carousel__slide {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 42px 0 48px;
}

main>#screens .interface-carousel .showcase-carousel__viewport {
  padding: 0
}

/* Metrics / feedback / roadmap / validation: cards directly inside the white section. */
main>#metrics .metric-editorial,
main>#metrics .payment-row,
main>#feedback .quote-list,
main>#feedback .roadmap-row,
main>#validation .validation-list {
  border: 0;
}

main>#metrics .metric-editorial>div,
main>#metrics .funnel-editorial,
main>#metrics .payment-row>div,
main>#feedback .quote-list blockquote,
main>#feedback .design-proof,
main>#feedback .roadmap-row>div,
main>#validation .validation-list article,
main>#validation .design-proof {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* Keep What I Learned as a full-width dark chapter. */
main>#learnings,
main>.closing-section {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-radius: 0;
}

@media(max-width:980px) {
  main {
    width: min(calc(100% - 36px), 1380px)
  }

  main>.story-section:not(.dark-section) {
    padding: 64px 34px
  }

  main>#context>.section-intro {
    padding: 0 34px
  }

  main>#context>.story-row {
    padding: 44px 34px
  }

  main>#context>.issue-grid {
    grid-template-columns: 1fr 1fr
  }

  main>#research .finding-grid {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:760px) {
  main {
    width: calc(100% - 24px)
  }

  main>.story-section:not(.dark-section) {
    margin: 24px 0;
    padding: 56px 22px;
    border-radius: 24px
  }

  main>#context {
    padding: 24px 0 0
  }

  main>#context>.section-intro {
    padding: 0 22px;
    margin-bottom: 26px
  }

  main>#context>.story-row {
    padding: 36px 22px;
    margin-bottom: 24px;
    border-radius: 24px
  }

  main>#context>.issue-grid {
    grid-template-columns: 1fr;
    padding: 20px;
    border-radius: 24px
  }

  main>#context>.fact-strip {
    padding: 18px 20px;
    border-radius: 24px
  }

  main>#research .finding-grid {
    grid-template-columns: 1fr
  }

  main>.dark-section {
    padding-left: 18px;
    padding-right: 18px
  }
}

/* =========================================================
   Coastals refinement v5 — feedback.docx layout corrections
   ========================================================= */

/* The document calls for a calm white reading surface with cards used only
   for the specific content groups, not as a wrapper around the whole section. */
main {
  width: 100%;
  max-width: none;
  margin: 0;
}

main>.story-section:not(.dark-section) {
  width: 100%;
  margin: 0;
  padding: 112px 24px;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

main>.story-section:not(.dark-section)>* {
  width: min(100%, var(--coastals-max));
  margin-left: auto;
  margin-right: auto;
}

/* 01 Context: one centered Problem + Opportunity card, followed only by 3 issue cards. */
main>#context {
  background: var(--coastals-paper);
  padding-top: 96px;
}

main>#context>.section-intro {
  max-width: var(--coastals-max);
}

main>#context .context-problem-solution-card {
  width: min(100%, 1080px);
  margin: 0 auto 34px;
  padding: 18px 42px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 28px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 18px 48px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .95);
}

main>#context .context-problem-solution-card .story-row,
main>#context .context-problem-solution-card .story-row.reverse {
  grid-template-columns: minmax(0, 1fr) minmax(300px, .82fr);
  padding: 34px 0;
  border-top: 0;
  gap: 54px;
}

main>#context .context-problem-solution-card .story-row+.story-row {
  border-top: 1px solid var(--coastals-line);
}

main>#context .context-problem-solution-card .story-copy {
  order: 1 !important;
}

main>#context .context-problem-solution-card .story-visual {
  order: 2 !important;
}

main>#context .context-problem-solution-card .story-copy h3 {
  max-width: 520px;
}

main>#context .context-problem-solution-card .story-copy>p:not(.story-label) {
  max-width: 520px;
}

main>#context .context-problem-solution-card .story-visual {
  min-height: 300px;
}

main>#context .context-problem-solution-card .light-visual {
  background: #e9ebee;
  border-radius: 18px;
  padding: 28px;
}

main>#context .context-problem-solution-card .story-visual img {
  max-height: 430px;
}

/* Only the 3/3 issue cards remain. The old Market / Peak Season / TAM strip is removed. */
main>#context>.issue-grid {
  width: min(100%, 1080px);
  margin: 0 auto;
  padding: 0;
  border: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  background: transparent;
}

main>#context>.issue-grid article {
  min-height: 205px;
  padding: 28px 26px 30px;
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* 02 Research: no outer grey/white container. Only User Research and Operator Research are cards. */
main>#research {
  /* background: #fff; */
}

main>#research .research-row,
main>#research .research-row.reverse {
  width: min(100%, 1120px);
  margin: 0 auto 24px;
  padding: 42px 46px;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 58px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 16px 42px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .95);
}

main>#research .research-row.reverse .research-copy {
  order: 2;
}

main>#research .research-row.reverse .research-visual {
  order: 1;
}

main>#research .finding-grid {
  width: min(100%, 1120px);
  margin: 30px auto 0;
  border: 0;
  background: transparent;
}

/* 03 Solution: only Concept 01 and Concept 02 are cards. */
main>#solution {
  background: #fff;
}

main>#solution .concept-row,
main>#solution .concept-row.reverse {
  width: min(100%, 1120px);
  margin: 0 auto 24px;
  padding: 44px 46px;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 58px;
  /* border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 16px 42px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .95); */
}

main>#solution .concept-row.reverse .concept-copy {
  order: 1;
}

main>#solution .concept-row.reverse .concept-visual {
  order: 2;
}

main>#solution .result {
  background: rgba(243, 245, 248, .72);
}

/* 04 Core design decisions: remove the large white section surface; keep decision rows as cards. */
main>#design {
  background: var(--coastals-paper);
}

main>#design .decision-row,
main>#design .decision-row.reverse {
  width: min(100%, 1120px);
  margin: 0 auto 24px;
  padding: 44px 46px;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 58px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 16px 42px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .95);
}

main>#design .decision-row.reverse .decision-copy {
  order: 1;
}

main>#design .decision-row.reverse .decision-visual {
  order: 2;
}

main>#design .design-proof {
  width: min(100%, 1120px);
  margin: 18px auto 0;
}

/* 05 remains a true full-width dark chapter. */
main>#iteration {
  width: 100%;
  margin: 0;
  border-radius: 0;
}

/* 06 Interface: remove grey background and keep carousel directly on white. */
main>#screens {
  background: #fff;
}

main>#screens .interface-carousel .showcase-carousel__slide {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

/* 07 Metrics / 08 Feedback / 09 Validation: white page surfaces, cards are the content. */
main>#metrics,
main>#feedback,
main>#validation {
  /* background: #fff; */
}

main>#metrics .metric-editorial>div,
main>#metrics .funnel-editorial,
main>#metrics .payment-row>div,
main>#feedback .quote-list blockquote,
main>#feedback .design-proof,
main>#feedback .roadmap-row>div,
main>#validation .validation-list article,
main>#validation .design-proof {
  background: #fff;
  border: 1px solid rgba(17, 20, 28, .08) !important;
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9);
}

/* 10 stays full width and dark. */
main>#learnings,
main>.closing-section {
  width: 100%;
  margin: 0;
  border-radius: 0;
}

@media(max-width:980px) {

  main>#context .context-problem-solution-card,
  main>#context>.issue-grid,
  main>#research .research-row,
  main>#research .finding-grid,
  main>#solution .concept-row,
  main>#design .decision-row {
    width: min(100%, 100%)
  }

  main>#context>.issue-grid {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:760px) {
  main>.story-section:not(.dark-section) {
    padding: 76px 18px
  }

  main>#context .context-problem-solution-card,
  main>#research .research-row,
  main>#solution .concept-row,
  main>#design .decision-row {
    padding: 30px 24px;
    border-radius: 22px
  }

  main>#context .context-problem-solution-card .story-row,
  main>#context .context-problem-solution-card .story-row.reverse,
  main>#research .research-row,
  main>#research .research-row.reverse,
  main>#solution .concept-row,
  main>#solution .concept-row.reverse,
  main>#design .decision-row,
  main>#design .decision-row.reverse {
    grid-template-columns: 1fr;
    gap: 30px
  }

  main>#context .context-problem-solution-card .story-copy,
  main>#context .context-problem-solution-card .story-visual,
  main>#research .research-row.reverse .research-copy,
  main>#research .research-row.reverse .research-visual,
  main>#solution .concept-row.reverse .concept-copy,
  main>#solution .concept-row.reverse .concept-visual,
  main>#design .decision-row.reverse .decision-copy,
  main>#design .decision-row.reverse .decision-visual {
    order: initial
  }

  main>#context>.issue-grid {
    grid-template-columns: 1fr
  }
}

/* Research clarification: only the two research blocks are cards. */
main>#research .finding-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--coastals-line);
  border-bottom: 1px solid var(--coastals-line);
  background: transparent;
}

main>#research .finding-grid>div {
  min-height: 0;
  padding: 30px 24px 34px;
  border: 0 !important;
  border-right: 1px solid var(--coastals-line) !important;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

main>#research .finding-grid>div:last-child {
  border-right: 0 !important
}

@media(max-width:980px) {
  main>#research .finding-grid {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:760px) {
  main>#research .finding-grid {
    grid-template-columns: 1fr
  }

  .main>#research .finding-grid>div {
    border-right: 0 !important;
    border-bottom: 1px solid var(--coastals-line) !important
  }
}

/* =========================================================
   Coastals v6 — precise presentation refinements
   ========================================================= */

/* Major white sections use the same footprint as the Coastals meta panel. */
main>.story-section:not(.dark-section) {
  width: min(calc(100% - 48px), var(--coastals-max));
  margin: 28px auto;
  padding: 92px 42px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .9);
  backdrop-filter: blur(16px);
}

main>.story-section:not(.dark-section)>* {
  width: 100%;
  max-width: none;
}

/* Context stays on the grey canvas; the Problem and Opportunity are two
   independent, shadowless glass cards. */
main>#context {
  width: 100%;
  margin: 0;
  padding: 96px max(24px, calc((100vw - var(--coastals-max)) / 2));
  border: 0;
  border-radius: 0;
  background: var(--coastals-paper);
  box-shadow: none;
  backdrop-filter: none;
}

main>#context>.section-intro,
main>#context>.context-top-cards,
main>#context>.issue-grid {
  width: min(100%, var(--coastals-max));
  margin-left: auto;
  margin-right: auto;
}

.context-top-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 28px;
}

.context-card {
  min-height: 610px;
  padding: 34px 34px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, .55fr);
  gap: 26px;
  align-items: center;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 26px;
  background: rgba(255, 255, 255, .70);
  box-shadow: none;
  backdrop-filter: blur(18px) saturate(115%);
  -webkit-backdrop-filter: blur(18px) saturate(115%);
}

.context-card-copy h3 {
  margin: 0;
  max-width: 470px;
  font: 600 clamp(30px, 3.1vw, 46px)/1.05 "Instrument Sans", sans-serif;
  letter-spacing: -.7px;
}

.context-card-copy>p:not(.story-label) {
  max-width: 500px;
  color: #596171;
  font-size: 15px;
  line-height: 1.8;
}

.context-phone {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
}

.phone-shell {
  position: relative;
  width: min(100%, 220px);
  aspect-ratio: 9 / 18.8;
  padding: 8px;
  border-radius: 32px;
  background: #151820;
  box-shadow: 0 22px 44px rgba(11, 13, 20, .16);
  transform: rotate(1deg);
}

.context-card:nth-child(2) .phone-shell {
  transform: rotate(-1deg);
}

.phone-shell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 25px;
  background: #fff;
}

.phone-speaker {
  position: absolute;
  z-index: 2;
  top: 12px;
  left: 50%;
  width: 54px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 10px;
  background: #07090d;
}

/* Core design decisions: simple hierarchy with a more intentional editorial card. */
main>#design {
  background: var(--coastals-paper);
}

main>#design .decision-row,
main>#design .decision-row.reverse {
  width: 100%;
  margin: 0 0 20px;
  padding: 38px 40px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .72fr);
  gap: 64px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 26px;
  background: rgba(255, 255, 255, .72);
  box-shadow: none;
  backdrop-filter: blur(16px) saturate(112%);
  -webkit-backdrop-filter: blur(16px) saturate(112%);
}

main>#design .decision-copy {
  position: relative;
  padding-left: 58px;
}

main>#design .decision-copy::before {
  content: counter(design-decision);
  counter-increment: design-decision;
  position: absolute;
  left: 0;
  top: 2px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(17, 20, 28, .10);
  border-radius: 50%;
  color: #7b8491;
  font: 600 11px/1 "Instrument Sans", sans-serif;
  background: rgba(255, 255, 255, .65);
}

main>#design {
  counter-reset: design-decision;
}

main>#design .decision-copy h3 {
  max-width: 620px;
}

main>#design .decision-visual {
  min-height: 390px;
  padding: 8px;
  border-left: 1px solid rgba(17, 20, 28, .07);
}

main>#design .decision-visual img {
  max-height: 520px;
}

/* White section footprint: exactly the meta width, including screens/metrics/etc. */
main>#research,
main>#solution,
main>#screens,
main>#metrics,
main>#feedback,
main>#validation {
  /* background: rgba(255, 255, 255, .94); */
}

/* Interface: Tinder-like stacked/swipe presentation, but keep all editorial copy. */
main>#screens .interface-carousel {
  width: 100%;
  margin-top: 24px;
}

main>#screens .showcase-carousel__viewport {
  height: min(680px, 58vw);
  min-height: 560px;
  padding: 0;
  overflow: hidden;
  mask-image: none;
  touch-action: pan-y;
}

main>#screens .showcase-carousel__track {
  position: relative;
  width: 100%;
  height: 100%;
  display: block;
  transform: none !important;
  transition: none;
}

main>#screens .showcase-carousel__slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 70px;
  align-items: center;
  padding: 42px 54px;
  border: 0;
  border-radius: 26px;
  background: transparent;
  box-shadow: none;
  opacity: 0;
  transform: translate3d(0, 0, 0) scale(.97);
  pointer-events: none;
  transition: opacity .28s ease, transform .35s ease;
}

main>#screens .showcase-carousel__slide.is-active {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  pointer-events: auto;
  box-shadow: none;
}

main>#screens .showcase-carousel__slide.is-next {
  opacity: .22;
  transform: translate3d(0, 34px, 0) scale(.94);
}

main>#screens .interface-slide-copy {
  max-width: 620px;
}

main>#screens .interface-slide-copy h3 {
  font-size: clamp(34px, 4.3vw, 62px);
}

main>#screens .interface-slide-media {
  min-height: 500px;
  position: relative;
}

main>#screens .interface-slide-media img {
  height: min(570px, 48vw);
  max-height: 570px;
  width: auto;
  filter: drop-shadow(0 28px 42px rgba(11, 13, 20, .16));
  user-select: none;
  -webkit-user-drag: none;
}

main>#screens .showcase-carousel__slide.is-active .interface-slide-media img {
  animation: coastalsPhoneFloat .55s ease both;
}

@keyframes coastalsPhoneFloat {
  from {
    opacity: 0;
    transform: translateY(18px) rotate(1.5deg) scale(.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(0) scale(1);
  }
}

main>#screens .showcase-carousel__controls {
  margin-top: 12px;
}

main>#screens .showcase-carousel__dots {
  margin-top: 8px;
}

@media(max-width:980px) {
  .context-card {
    grid-template-columns: 1fr .65fr;
  }

  main>#design .decision-row,
  main>#design .decision-row.reverse {
    grid-template-columns: 1fr .7fr;
  }

  main>#screens .showcase-carousel__slide {
    grid-template-columns: 1fr .7fr;
    gap: 34px;
    padding: 34px;
  }
}

@media(max-width:760px) {
  main>.story-section:not(.dark-section) {
    width: calc(100% - 28px);
    margin: 18px auto;
    padding: 68px 22px;
    border-radius: 24px;
  }

  main>#context {
    width: 100%;
    margin: 0;
    padding: 76px 14px;
    border-radius: 0;
  }

  .context-top-cards {
    grid-template-columns: 1fr;
  }

  .context-card {
    min-height: 0;
    grid-template-columns: 1fr;
    padding: 30px 24px;
  }

  .context-phone {
    min-height: 340px;
  }

  .phone-shell {
    width: 190px;
  }

  main>#design .decision-row,
  main>#design .decision-row.reverse {
    grid-template-columns: 1fr;
    padding: 30px 24px;
  }

  main>#design .decision-copy {
    padding-left: 50px;
  }

  main>#design .decision-visual {
    border-left: 0;
    border-top: 1px solid rgba(17, 20, 28, .07);
    padding-top: 24px;
  }

  main>#screens .showcase-carousel__viewport {
    height: 690px;
    min-height: 690px;
  }

  main>#screens .showcase-carousel__slide {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 30px 18px;
  }

  main>#screens .interface-slide-media {
    min-height: 330px;
  }

  main>#screens .interface-slide-media img {
    height: 390px;
  }
}

/* =========================================================
   Coastals v7 — visual polish for research, concepts, decisions
   and a clearer Tinder-style interface showcase.
   Light neutral palette only; existing Coastals colors preserved.
   ========================================================= */

/* Research evidence / decision callouts: two clearly different light neutrals. */
main>#research .evidence-block,
main>#research .decision-block {
  margin-top: 20px;
  padding: 18px 20px 19px;
  border: 1px solid rgba(17, 20, 28, .075);
  border-radius: 16px;
}

main>#research .evidence-block {
  background: rgba(247, 245, 240, .82);
}

main>#research .decision-block {
  background: rgba(241, 245, 248, .92);
}

main>#research .evidence-block strong,
main>#research .decision-block strong {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #20242d;
  font-size: 13px;
}

main>#research .evidence-block strong::before,
main>#research .decision-block strong::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: #9ca4af;
}

main>#research .decision-block strong::before {
  background: #6f7f8f;
}

/* Phone mockups for Research, Solution Exploration and Core Decisions. */
.story-phone {
  position: relative;
  width: min(100%, 245px);
  /* aspect-ratio: 9 / 18.8; */
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, .52);
  border-radius: 34px;
  background: linear-gradient(145deg, #242831, #12151c);
  box-shadow: 0 26px 55px rgba(11, 13, 20, .16), 0 0 0 1px rgba(17, 20, 28, .10);
  transform: translateZ(0);
}

.story-phone::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 28px;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
}

.story-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 27px;
  background: #fff;
}

.story-phone-speaker {
  position: absolute;
  z-index: 3;
  top: 13px;
  left: 50%;
  width: 56px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 10px;
  background: #080a0e;
}

main>#research .research-visual,
main>#solution .concept-visual,
main>#design .decision-visual {
  min-height: 420px;
}

main>#research .story-phone,
main>#solution .story-phone,
main>#design .story-phone {
  transition: transform .35s ease, box-shadow .35s ease;
}

main>#research .research-row:hover .story-phone,
main>#solution .concept-row:hover .story-phone,
main>#design .decision-row:hover .story-phone {
  transform: translateY(-5px) rotate(-.5deg);
  box-shadow: 0 32px 65px rgba(11, 13, 20, .18), 0 0 0 1px rgba(17, 20, 28, .10);
}

main>#research .research-row.reverse:hover .story-phone,
main>#solution .concept-row.reverse:hover .story-phone,
main>#design .decision-row.reverse:hover .story-phone {
  transform: translateY(-5px) rotate(.5deg);
}

/* Give the two concept cards and two decision cards distinct, subtle neutral surfaces. */
main>#solution .concept-row:nth-of-type(2) {
  /* background: linear-gradient(135deg, rgba(250, 249, 246, .94), rgba(244, 246, 248, .88)); */
}

main>#solution .concept-row:nth-of-type(3) {
  background: linear-gradient(135deg, rgba(244, 247, 249, .94), rgba(249, 248, 245, .90));
}

main>#design .decision-row:nth-of-type(2) {
  background: linear-gradient(135deg, rgba(249, 248, 245, .95), rgba(244, 246, 248, .92));  border:none;
}

main>#design .decision-row:nth-of-type(3) {
  background: linear-gradient(135deg, rgba(244, 247, 249, .95), rgba(250, 249, 246, .92));
  border:none;
}

main>#solution .concept-row,
main>#design .decision-row {
  overflow: hidden;
}

main>#solution .concept-copy,
main>#design .decision-copy {
  position: relative;
}

main>#solution .concept-copy::after,
main>#design .decision-copy::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -100px;
  top: -100px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .52);
  pointer-events: none;
}

main>#solution .concept-copy>*,
main>#design .decision-copy>* {
  position: relative;
  z-index: 1;
}

/* Interface showcase: phone first, editorial explanation directly underneath. */
main>#screens .interface-swipe-cue {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  margin: 0 auto 18px;
  color: #7b8491;
  font: 600 10px/1 "Instrument Sans", sans-serif;
  letter-spacing: 1.35px;
}

.interface-swipe-cue strong {
  font-weight: 600;
}

.swipe-cue-line {
  width: 58px;
  height: 1px;
  background: rgba(17, 20, 28, .16);
}

.swipe-cue-arrow {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(17, 20, 28, .12);
  border-radius: 50%;
  animation: swipeCue 1.8s ease-in-out infinite;
}

@keyframes swipeCue {

  0%,
  100% {
    transform: translateX(0);
    opacity: .6
  }

  50% {
    transform: translateX(7px);
    opacity: 1
  }
}

main>#screens .showcase-carousel__viewport {
  height: 760px;
  min-height: 760px;
  overflow: visible;
  perspective: 1400px;
}

main>#screens .showcase-carousel__track {
  perspective: 1400px;
}

main>#screens .showcase-carousel__slide {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  gap: 28px;
  padding: 18px 20px 10px;
  overflow: visible;
  transform-origin: 50% 88%;
  will-change: transform, opacity;
}

main>#screens .showcase-carousel__slide::before {
  content: "";
  position: absolute;
  width: 330px;
  height: 470px;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 42px;
  /* background: rgba(238, 241, 244, .66);
  border: 1px solid rgba(17, 20, 28, .06); */
  z-index: -1;
}

main>#screens .showcase-carousel__slide.is-next::before {
  box-shadow: 0 22px 55px rgba(11, 13, 20, .08);
}

main>#screens .interface-slide-media {
  min-height: 475px;
  height: 475px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
}

main>#screens .interface-phone {
  position: relative;
  width: 280px;
  height: 468px;
  padding: 8px;
  border-radius: 38px;
  background: linear-gradient(145deg, #252a33, #11141a);
  border: 1px solid rgba(255, 255, 255, .52);
  box-shadow: 0 30px 75px rgba(11, 13, 20, .20), 0 0 0 1px rgba(17, 20, 28, .08);
  transform: translateZ(0);
  transition: box-shadow .35s ease;
}

main>#screens .interface-phone::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 32px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
  pointer-events: none;
}

main>#screens .interface-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 31px;
  background: #fff;
  filter: none;
}

.interface-phone-speaker {
  position: absolute;
  z-index: 3;
  top: 13px;
  left: 50%;
  width: 58px;
  height: 5px;
  transform: translateX(-50%);
  border-radius: 10px;
  background: #07090d;
}

main>#screens .interface-slide-copy {
  width: min(100%, 760px);
  max-width: 760px;
  text-align: center;
  padding: 0 18px;
}

main>#screens .interface-slide-copy .story-label {
  margin-bottom: 10px;
}

main>#screens .interface-slide-copy h3 {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 48px);
  line-height: 1.06;
}

main>#screens .interface-slide-copy>p:not(.story-label) {
  max-width: 620px;
  margin: 12px auto 0;
  color: #687080;
  font-size: 14px;
  line-height: 1.75;
}

main>#screens .showcase-carousel__slide.is-active .interface-phone {
  animation: interfacePhoneIn .72s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes interfacePhoneIn {
  from {
    opacity: 0;
    transform: translateY(28px) rotateX(8deg) rotateZ(-1.5deg) scale(.92);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotateX(0) rotateZ(0) scale(1);
  }
}

main>#screens .showcase-carousel__slide.is-next {
  opacity: .34;
  transform: translate3d(0, 28px, -40px) scale(.92) rotateZ(1deg);
  filter: saturate(.72);
}

main>#screens .showcase-carousel__slide.is-active {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1) rotateZ(0);
}

main>#screens .showcase-carousel__slide.is-next .interface-slide-copy {
  opacity: .25;
}

main>#screens .showcase-carousel__controls {
  position: relative;
  z-index: 8;
  margin-top: 0;
}

main>#screens .showcase-carousel__buttons .showcase-carousel__button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(12px);
}

main>#screens .showcase-carousel__dots {
  position: relative;
  z-index: 8;
}

@media(max-width:760px) {
  main>#screens .showcase-carousel__viewport {
    height: 720px;
    min-height: 720px;
  }

  main>#screens .interface-slide-media {
    height: 390px;
    min-height: 390px;
  }

  main>#screens .interface-phone {
    width: 235px;
    height: 388px;
    border-radius: 32px;
  }

  main>#screens .showcase-carousel__slide::before {
    width: 280px;
    height: 390px;
    border-radius: 36px;
  }

  main>#screens .showcase-carousel__slide {
    gap: 22px;
    padding-top: 12px;
  }

  main>#screens .interface-slide-copy h3 {
    font-size: 32px;
  }

  .story-phone {
    width: 210px;
  }
}

@media(prefers-reduced-motion:reduce) {

  .swipe-cue-arrow,
  main>#screens .showcase-carousel__slide.is-active .interface-phone {
    animation: none;
  }
}


/* =========================================================
   Coastals v8 refinements
   Slower, clearer interface swipe + side navigation.
   Evidence metrics use the same "What I found" treatment.
   ========================================================= */
main>#solution .result {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 7px 10px;
}

main>#solution .result .result-label {
  flex: 0 0 100%;
  display: block;
  margin-bottom: 2px;
  color: #7a8390;
  font: 600 10px/1.2 "Instrument Sans", sans-serif;
  letter-spacing: 1.25px;
  text-transform: uppercase;
}

main>#solution .result strong {
  margin: 0;
}

/* Keep interface navigation at the screen, not at the bottom of the section. */
main>#screens .showcase-carousel {
  position: relative;
}

main>#screens .showcase-carousel__controls {
  position: absolute;
  inset: 0;
  height: 760px;
  margin: 0;
  z-index: 20;
  display: block;
  pointer-events: none;
}

main>#screens .showcase-carousel__buttons {
  position: absolute;
  top: 255px;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 18px;
  pointer-events: none;
}

main>#screens .showcase-carousel__buttons .showcase-carousel__button {
  pointer-events: auto;
  width: 50px;
  height: 50px;
  border: 1px solid rgba(17, 20, 28, .13);
  background: rgba(255, 255, 255, .9);
  color: #171a20;
  box-shadow: 0 10px 28px rgba(17, 20, 28, .10);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
}

main>#screens .showcase-carousel__buttons .showcase-carousel__button:hover {
  transform: scale(1.06);
  background: #fff;
  box-shadow: 0 14px 34px rgba(17, 20, 28, .14);
}

main>#screens .showcase-carousel__counter {
  position: absolute;
  left: 4px;
  bottom: 12px;
}

main>#screens .showcase-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  z-index: 21;
}

/* Make the swipe feel deliberate rather than fast. */
main>#screens .showcase-carousel__slide {
  touch-action: pan-y;
}

main>#screens .showcase-carousel__slide.is-active .interface-phone {
  animation-duration: 1s;
}

@media(max-width:760px) {
  main>#screens .showcase-carousel__controls {
    height: 720px;
  }

  main>#screens .showcase-carousel__buttons {
    top: 210px;
    padding: 0 2px;
  }

  main>#screens .showcase-carousel__buttons .showcase-carousel__button {
    width: 44px;
    height: 44px;
  }

  main>#screens .showcase-carousel__counter {
    bottom: 8px;
  }

  main>#screens .showcase-carousel__dots {
    bottom: 8px;
  }
}

/* =========================================================
   Coastals v9 — final interface presentation + stable card geometry
   ========================================================= */
/* Keep major light sections the same width as the Coastals meta block. */
main {
  width: min(calc(100% - 48px), var(--coastals-max));
  max-width: var(--coastals-max);
  margin: 0 auto
}

main>.story-section:not(.dark-section) {
  width: 100%;
  margin: 34px 0;
  padding: 78px 58px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .92);
  /* box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96); */
  overflow: hidden
}

main>#context {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 34px 0 0;
  overflow: visible
}

main>#context>.section-intro {
  padding: 0px;
  margin-bottom: 34px
}

main>#context>.story-row {
  margin: 0 0 34px;
  padding: 52px 58px;
  border: 1px solid rgba(17, 20, 28, .07);
  border-radius: 30px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96)
}

main>#context>.issue-grid {
  margin: 0;
  padding: 34px;
  /* border: 1px solid rgba(17, 20, 28, .07); */
  border-radius: 30px;
  /* background: rgba(255, 255, 255, .92); */
  box-shadow: 0 22px 60px rgba(11, 13, 20, .055), inset 0 1px 0 rgba(255, 255, 255, .96)
}

main>#context>.issue-grid article {
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 22px;
  box-shadow: 0 14px 36px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .9)
}

/* Evidence and implication blocks: stable, readable two-tone neutral cards. */
.evidence-block,
.decision-block {
  display: block !important;
  margin-top: 22px !important;
  padding: 18px 20px !important;
  border: 1px solid rgba(17, 20, 28, .09) !important;
  border-radius: 18px !important;
  background: rgba(247, 248, 250, .92) !important;
  box-shadow: none !important
}

.evidence-block strong,
.decision-block strong {
  display: block !important;
  color: #171a21 !important;
  font: 600 13px/1.3 "Instrument Sans", sans-serif !important
}

.evidence-block p,
.decision-block p {
  margin: 7px 0 0 !important;
  color: #687080 !important;
  font-size: 13px !important;
  line-height: 1.65 !important
}

.decision-block {
  background: rgba(239, 241, 244, .92) !important;
  border-left: 3px solid rgba(131, 198, 232, .72) !important
}

/* Concepts and core decisions: keep the section clean, cards carry the visual evidence. */
main>#solution .concept-row,
main>#design .decision-row {
  padding: 48px 0;
  border-top: 1px solid var(--coastals-line);
 grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px
}

main>#solution .concept-copy,
main>#design .decision-copy {
  padding: 30px 32px;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 14px 38px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .92)
}

main>#solution .result,
main>#design .decision-block,
main>#design .design-proof {
  border: 1px solid rgba(17, 20, 28, .08) !important;
  border-radius: 18px;
  background: rgba(244, 246, 248, .92);
  box-shadow: none
}

main>#solution .concept-visual,
main>#design .decision-visual {
  min-height: 500px
}

/* Interface: one clear stage, phone first, information immediately below. */
main>#screens {
  overflow: visible
}

main>#screens .section-intro {
  margin-bottom: 24px
}

main>#screens .interface-swipe-cue {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 4px 0 2px;
  color: #8a919c;
  font: 600 10px/1 "Manrope", sans-serif;
  letter-spacing: 1.2px;
  text-transform: uppercase
}

main>#screens .interface-swipe-cue .swipe-cue-line {
  width: 34px;
  height: 1px;
  background: rgba(17, 20, 28, .16)
}

main>#screens .interface-carousel {
  position: relative;
  margin-top: 12px
}

main>#screens .interface-carousel .showcase-carousel__slide {
  grid-template-columns: minmax(280px, .72fr) minmax(0, 1fr);
  gap: 70px;
  padding: 30px 92px 54px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none
}

main>#screens .interface-slide-media {
  min-height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative
}

main>#screens .interface-phone {
  position: relative;
  width: min(300px, 30vw);
  filter: drop-shadow(0 30px 45px rgba(11, 13, 20, .14))
}

main>#screens .interface-phone img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 620px;
  object-fit: contain
}

main>#screens .interface-slide-copy {
  align-self: center;
  padding-top: 12px
}

main>#screens .interface-slide-copy .story-label {
  margin-bottom: 16px;
  color: #7b8491
}

main>#screens .interface-slide-copy h3 {
  max-width: 560px;
  margin: 0;
  font: 600 clamp(34px, 4vw, 54px)/1.02 "Instrument Sans", sans-serif;
  letter-spacing: -.8px
}

main>#screens .interface-slide-copy>p:not(.story-label) {
  max-width: 520px;
  margin: 20px 0 0;
  color: var(--coastals-muted);
  font-size: 14px;
  line-height: 1.8
}

main>#screens .showcase-carousel__button {
  position: relative
}

/* Phone mockups in evidence/concepts/decisions stay consistent. */
.story-phone,
.context-phone .phone-shell {
  position: relative;
  display: block;
  /* width: min(300px, 100%); */
  margin: auto;
  padding: 10px;
  /* border: 8px solid #171a22; */
  border-radius: 30px;
  background: #171a22;
  box-shadow: 0 28px 50px rgba(11, 13, 20, .15)
}

.story-phone img,
.context-phone .phone-shell img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  display: block
}

@media(max-width:980px) {
  main>#screens .interface-carousel .showcase-carousel__slide {
    grid-template-columns: minmax(250px, .8fr) minmax(0, 1fr);
    gap: 38px;
    padding-left: 66px;
    padding-right: 66px
  }
}

@media(max-width:760px) {
  main {
    width: min(calc(100% - 36px), var(--coastals-max))
  }

  main>.story-section:not(.dark-section) {
    padding: 58px 22px;
    border-radius: 24px
  }

  main>#context {
    padding-top: 20px
  }

  main>#context>.section-intro {
    padding: 0 22px
  }

  main>#context>.story-row {
    padding: 34px 22px
  }

  main>#context>.issue-grid {
    padding: 20px
  }

  main>#solution .concept-row,
  main>#design .decision-row {
    grid-template-columns: 1fr;
    gap: 28px
  }

  main>#screens .interface-carousel .showcase-carousel__slide {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 18px 48px 48px
  }

  main>#screens .interface-slide-media {
    min-height: 430px
  }

  main>#screens .interface-phone {
    width: min(260px, 68vw)
  }
}

/* v9.1 — Interface is a vertical story: screen first, explanation directly underneath. */
main>#screens .interface-carousel .showcase-carousel__slide {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  gap: 20px;
  padding: 8px 0 58px;
}

main>#screens .interface-slide-media {
  width: 100%;
  min-height: 610px;
  display: flex;
  align-items: center;
  justify-content: center;
}

main>#screens .interface-phone {
  width: min(300px, 30vw);
  margin: 0 auto;
}

main>#screens .interface-slide-copy {
  width: min(720px, 100%);
  align-self: center;
  text-align: center;
  padding: 0 24px;
}

main>#screens .interface-slide-copy .story-label {
  margin-bottom: 12px
}

main>#screens .interface-slide-copy h3 {
  max-width: 720px;
  margin: 0 auto;
  font-size: clamp(30px, 3.5vw, 48px)
}

main>#screens .interface-slide-copy>p:not(.story-label) {
  max-width: 650px;
  margin: 16px auto 0
}

main>#screens .showcase-carousel__buttons {
  left: 50%;
  right: auto;
  width: min(520px, calc(100% - 48px));
  transform: translateX(-50%);
  top: 0;
  bottom: auto;
  height: 610px
}

main>#screens .showcase-carousel__button {
  flex: 0 0 auto
}

@media(max-width:760px) {
  main>#screens .interface-carousel .showcase-carousel__slide {
    padding-left: 0;
    padding-right: 0
  }

  main>#screens .interface-slide-media {
    min-height: 500px
  }

  main>#screens .interface-phone {
    width: min(260px, 68vw)
  }

  main>#screens .showcase-carousel__buttons {
    width: calc(100% - 12px);
    height: 500px
  }
}


/* =========================================================
   Coastals v10 — simple, stable Interface Design carousel
   No swipe-stack / entrance animation. Screen first, information below.
   ========================================================= */
main>#screens .interface-carousel {
  position: relative;
  margin-top: 18px
}

main>#screens .showcase-carousel__viewport {
  height: 860px;
  min-height: 860px;
  overflow: visible
}

main>#screens .showcase-carousel__track {
  height: 860px;
  position: relative
}

main>#screens .showcase-carousel__slide,
main>#screens .showcase-carousel__slide.is-active,
main>#screens .showcase-carousel__slide.is-next,
main>#screens .showcase-carousel__slide.is-prev {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0 80px 44px;
  margin: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: none;
  filter: none;
  transition: opacity .28s ease, visibility 0s linear .28s;
}

main>#screens .showcase-carousel__slide.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity .28s ease;
  z-index: 6;
}

main>#screens .interface-slide-media {
  width: 100%;
  height: 600px;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

main>#screens .interface-phone {
  width: 300px;
  height: auto;
  margin: 0 auto;
  padding: 8px;
  border-radius: 38px;
  background: #171a21;
  border: 1px solid rgba(17, 20, 28, .12);
  box-shadow: 0 24px 55px rgba(11, 13, 20, .16);
  filter: none;
  transform: none !important;
  animation: none !important;
}

main>#screens .interface-phone img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 570px;
  object-fit: contain;
  border-radius: 31px;
  background: #fff;
}

main>#screens .interface-phone-speaker {
  display: block
}

main>#screens .interface-slide-copy {
  width: min(760px, 100%);
  max-width: 760px;
  align-self: center;
  text-align: center;
  padding: 0 18px;
  opacity: 1 !important;
  visibility: visible !important;
}

main>#screens .interface-slide-copy .story-label {
  display: block;
  margin: 0 0 12px;
  color: #737c89 !important;
  opacity: 1 !important;
  visibility: visible !important;
}

main>#screens .interface-slide-copy h3 {
  display: block;
  margin: 0 auto;
  max-width: 720px;
  color: var(--coastals-ink, #171a21) !important;
  opacity: 1 !important;
  visibility: visible !important;
  font-size: clamp(30px, 3.5vw, 48px);
  line-height: 1.06;
}

main>#screens .interface-slide-copy>p:not(.story-label) {
  display: block;
  max-width: 650px;
  margin: 16px auto 0;
  color: #687080 !important;
  opacity: 1 !important;
  visibility: visible !important;
  font-size: 14px;
  line-height: 1.75;
}

main>#screens .showcase-carousel__controls {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  margin: 0;
}

main>#screens .showcase-carousel__buttons {
  position: absolute;
  top: 0;
  left: 50%;
  width: min(520px, calc(100% - 40px));
  height: 600px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

main>#screens .showcase-carousel__button {
  pointer-events: auto;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(17, 20, 28, .12);
  background: rgba(255, 255, 255, .94);
  color: #171a21;
  box-shadow: 0 10px 28px rgba(11, 13, 20, .08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

main>#screens .showcase-carousel__button:hover {
  background: #fff;
  transform: scale(1.04)
}

main>#screens .showcase-carousel__button:disabled {
  opacity: .35
}

main>#screens .showcase-carousel__counter {
  position: absolute;
  left: 0;
  bottom: 12px;
}

main>#screens .showcase-carousel__dots {
  position: relative;
  z-index: 21;
  margin: 8px 0 0;
}

main>#screens .showcase-carousel__slide.is-next,
main>#screens .showcase-carousel__slide.is-prev {
  opacity: 0;
  visibility: hidden;
  transform: none;
  filter: none
}

@media(max-width:760px) {

  main>#screens .showcase-carousel__viewport,
  main>#screens .showcase-carousel__track {
    height: 760px;
    min-height: 760px
  }

  main>#screens .showcase-carousel__slide,
  main>#screens .showcase-carousel__slide.is-active {
    padding: 0 8px 34px
  }

  main>#screens .interface-slide-media {
    height: 500px;
    min-height: 500px
  }

  main>#screens .interface-phone {
    width: min(260px, 68vw)
  }

  main>#screens .showcase-carousel__buttons {
    width: calc(100% - 8px);
    height: 500px
  }

  main>#screens .showcase-carousel__counter {
    left: 4px
  }
}

/* FINAL COASTALS INTERFACE UPDATE: multi-screen editorial carousel */
main>#screens .interface-carousel {
  width: 100%;
  margin-top: 26px;
}

main>#screens .interface-carousel .showcase-carousel__viewport {
  width: 100%;
  height: auto;
  min-height: 0;
  overflow: hidden;
  padding: 8px 0 28px;
  cursor: grab;
}

main>#screens .interface-carousel .showcase-carousel__viewport.is-dragging {
  cursor: grabbing
}

main>#screens .interface-carousel .showcase-carousel__track {
  display: flex;
  align-items: stretch;
  gap: 20px;
  width: 100%;
  height: auto;
  position: relative;
  transform: translateX(calc(var(--carousel-index, 0) * -1 * ((100% - 40px) / 3 + 20px)));
  transition: transform .42s cubic-bezier(.22, 1, .36, 1);
}

main>#screens .interface-carousel .showcase-carousel__slide,
main>#screens .interface-carousel .showcase-carousel__slide.is-active,
main>#screens .interface-carousel .showcase-carousel__slide.is-next,
main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
  position: relative;
  inset: auto;
  flex: 0 0 calc((100% - 40px) / 3);
  width: calc((100% - 40px) / 3);
  min-width: calc((100% - 40px) / 3);
  height: auto;
  min-height: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 22px;
  padding: 32px 20px 30px;
  margin: 0;
  background: #FFF;
  border: 1px solid rgba(17, 20, 28, .08);
  border-radius: 24px;
  box-shadow: 0 12px 34px rgba(11, 13, 20, .045), inset 0 1px 0 rgba(255, 255, 255, .92);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
  filter: none;
  transition: box-shadow .25s ease, transform .25s ease;
}

main>#screens .interface-carousel .showcase-carousel__slide:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(11, 13, 20, .07), inset 0 1px 0 rgba(255, 255, 255, .96);
}

main>#screens .interface-slide-media {
  width: 100%;
  height: 470px;
  min-height: 470px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
}

main>#screens .interface-phone {
  width: min(250px, 82%);
  margin: 0 auto;
  padding: 7px;
  border-radius: 34px;
  background: #171a21;
  border: 1px solid rgba(17, 20, 28, .12);
  box-shadow: 0 20px 42px rgba(11, 13, 20, .15);
  filter: none;
  transform: none !important;
  animation: none !important;
}

main>#screens .interface-phone img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 455px;
  object-fit: contain;
  border-radius: 27px;
  background: #fff;
}

main>#screens .interface-slide-copy {
  width: 100%;
  max-width: 330px;
  align-self: center;
  text-align: left;
  padding: 0 4px;
  opacity: 1 !important;
  visibility: visible !important;
}

main>#screens .interface-slide-copy .story-label {
  display: block;
  margin-bottom: 10px;
  color: #737986;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

main>#screens .interface-slide-copy h3 {
  margin: 0 0 10px;
  color: var(--coastals-ink, #171a21);
  font-size: 24px;
  line-height: 1.12;
  letter-spacing: -.35px;
}

main>#screens .interface-slide-copy p:not(.story-label) {
  margin: 0;
  color: #687080;
  font-size: 14px;
  line-height: 1.6;
}

main>#screens .interface-placeholder {
  height: 455px;
  min-height: 455px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #737986;
  background: linear-gradient(180deg, #f1f1ee, #e7e7e3);
  border: 1px dashed rgba(17, 20, 28, .2);
}

main>#screens .interface-placeholder div {
  padding: 22px;
}

main>#screens .interface-placeholder strong {
  display: block;
  color: #171a21;
  font-size: 14px;
  line-height: 1.35;
  letter-spacing: .04em;
}

main>#screens .interface-placeholder small {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.4;
}

main>#screens .showcase-carousel__controls {
  position: relative;
  inset: auto;
  width: 100%;
  max-width: none;
  height: auto;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  pointer-events: auto;
}

main>#screens .showcase-carousel__buttons {
  position: static;
  width: auto;
  height: auto;
  transform: none;
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

main>#screens .showcase-carousel__button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(17, 20, 28, .1);
  background: rgba(255, 255, 255, .88);
  color: #171a21;
  box-shadow: 0 8px 22px rgba(11, 13, 20, .06);
  display: grid;
  place-items: center;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

main>#screens .showcase-carousel__button:disabled {
  opacity: .35;
  cursor: not-allowed
}

main>#screens .showcase-carousel__counter {
  color: #737986;
  font-size: 12px;
  letter-spacing: .08em;
}

main>#screens .showcase-carousel__dots {
  display: none
}

/* Section headings begin at the actual left edge of their content column. */
main>.story-section .section-intro {
  display: block;
  width: 100%;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}

main>.story-section .section-intro>div:last-child {
  width: 100%;
  max-width: 1000px;
  margin-left: 0;
}

main>.story-section .section-intro h2 {
  max-width: 1000px
}

main>.dark-section .section-intro,
main>.closing-section .section-intro {
  display: block
}

/* Iteration and learning chapters are true full-width surfaces. */
main>#iteration,
main>#learnings,
main>.closing-section {
  width: 100%;
  max-width: none;
  margin-left: 0;
  margin-right: 0;
  border-radius: 0;
}

@media(max-width:760px) {
  main>#screens .interface-carousel .showcase-carousel__track {
    gap: 14px;
    transform: translateX(calc(var(--carousel-index, 0) * -1 * 100%));
  }

  main>#screens .interface-carousel .showcase-carousel__slide,
  main>#screens .interface-carousel .showcase-carousel__slide.is-active,
  main>#screens .interface-carousel .showcase-carousel__slide.is-next,
  main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
    flex-basis: 100%;
    width: 100%;
    min-width: 100%;
    min-height: 0;
    padding: 28px 20px 26px;
  }

  main>#screens .interface-slide-media {
    height: 500px;
    min-height: 500px;
  }

  main>#screens .interface-phone {
    width: min(270px, 82%)
  }

  main>#screens .interface-phone img {
    max-height: 485px
  }

  main>#screens .interface-placeholder {
    height: 485px;
    min-height: 485px
  }

  main>#screens .showcase-carousel__controls {
    margin-top: 4px
  }
}


/* FINAL FIX — Coastals interface: native horizontal multi-screen carousel. */
main>#screens .interface-carousel .showcase-carousel__viewport {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
  touch-action: pan-x;
  overscroll-behavior-x: contain;
}

main>#screens .interface-carousel .showcase-carousel__viewport::-webkit-scrollbar {
  display: none
}

main>#screens .interface-carousel .showcase-carousel__viewport.is-dragging {
  cursor: grabbing;
  scroll-behavior: auto
}

main>#screens .interface-carousel .showcase-carousel__track {
  display: flex !important;
  width: max-content !important;
  height: auto !important;
  gap: 24px !important;
  transform: none !important;
  transition: none !important;
  position: relative !important;
}

main>#screens .interface-carousel .showcase-carousel__slide,
main>#screens .interface-carousel .showcase-carousel__slide.is-active,
main>#screens .interface-carousel .showcase-carousel__slide.is-next,
main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
  flex: 0 0 calc((100vw - 48px - 48px - 48px) / 3) !important;
  width: calc((100vw - 48px - 48px - 48px) / 3) !important;
  min-width: calc((100vw - 48px - 48px - 48px) / 3) !important;
  min-height: 720px !important;
  scroll-snap-align: start;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  transform: none !important;
}

main>#screens .interface-carousel .showcase-carousel__controls {
  z-index: 5
}

/* True viewport-wide dark chapters, with their content aligned to the portfolio grid. */
main>#iteration,
main>#learnings {
  width: 100vw !important;
  max-width: none !important;
  margin-left: calc(50% - 50vw) !important;
  margin-right: calc(50% - 50vw) !important;
  border-left: 0 !important;
  border-right: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  padding-left: max(58px, calc((100vw - var(--coastals-max))/2 + 58px)) !important;
  padding-right: max(58px, calc((100vw - var(--coastals-max))/2 + 58px)) !important;
}

main>#iteration>.section-intro,
main>#iteration>.iteration-pair,
main>#iteration>.calendar-problem,
main>#iteration>.dark-story-grid,
main>#learnings>.section-intro,
main>#learnings>.learning-row,
main>#learnings>.closing-statement {
  width: 100%;
  max-width: var(--coastals-max);
  margin-left: auto;
  margin-right: auto;
}

@media(max-width:760px) {
  main>#screens .interface-carousel .showcase-carousel__track {
    gap: 14px !important
  }

  main>#screens .interface-carousel .showcase-carousel__slide,
  main>#screens .interface-carousel .showcase-carousel__slide.is-active,
  main>#screens .interface-carousel .showcase-carousel__slide.is-next,
  main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
    flex-basis: calc(100vw - 36px) !important;
    width: calc(100vw - 36px) !important;
    min-width: calc(100vw - 36px) !important;
    min-height: 0 !important;
  }

  main>#iteration,
  main>#learnings {
    padding-left: 22px !important;
    padding-right: 22px !important;
  }
}


/* =========================================================
   COASTALS FINAL INTERFACE PASS
   Multiple screens, controls above, no screen entrance motion.
   ========================================================= */
main>#screens .interface-carousel {
  position: relative !important;
  margin-top: 24px !important;
  overflow: visible !important;
}

/* Arrows sit above the screen gallery, aligned to the top-right. */
main>#screens .interface-carousel .showcase-carousel__controls {
  position: relative !important;
  width: 100% !important;
  height: 46px !important;
  margin: 0 0 18px !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 12px !important;
  pointer-events: auto !important;
}

main>#screens .interface-carousel .showcase-carousel__counter {
  display: none !important;
}

main>#screens .interface-carousel .showcase-carousel__buttons {
  position: static !important;
  width: auto !important;
  height: 46px !important;
  transform: none !important;
  display: flex !important;
  gap: 8px !important;
}

main>#screens .interface-carousel .showcase-carousel__button {
  width: 46px !important;
  height: 46px !important;
  min-width: 46px !important;
  padding: 0 !important;
  border-radius: 50% !important;
  box-shadow: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .showcase-carousel__button:hover {
  transform: none !important;
  box-shadow: none !important;
}

/* The gallery is a simple, static row. No fade, stack, slide or hover animation. */
main>#screens .interface-carousel .showcase-carousel__viewport {
  width: 100% !important;
  height: auto !important;
  min-height: 0 !important;
  max-width: none !important;
  overflow-x: auto !important;
  overflow-y: hidden !important;
  scroll-behavior: auto !important;
  scroll-snap-type: none !important;
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
  cursor: grab !important;
  touch-action: pan-x !important;
}

main>#screens .interface-carousel .showcase-carousel__viewport::-webkit-scrollbar {
  display: none !important
}

main>#screens .interface-carousel .showcase-carousel__viewport.is-dragging {
  cursor: grabbing !important
}

main>#screens .interface-carousel .showcase-carousel__track {
  display: flex !important;
  align-items: stretch !important;
  width: max-content !important;
  height: auto !important;
  gap: 24px !important;
  position: relative !important;
  transform: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .showcase-carousel__slide,
main>#screens .interface-carousel .showcase-carousel__slide.is-active,
main>#screens .interface-carousel .showcase-carousel__slide.is-next,
main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
  position: relative !important;
  inset: auto !important;
  flex: 0 0 340px !important;
  width: 340px !important;
  min-width: 340px !important;
  max-width: 340px !important;
  min-height: 0 !important;
  height: auto !important;
  padding: 28px 18px 26px !important;
  margin: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 20px !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  transform: none !important;
  filter: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .showcase-carousel__slide:hover {
  transform: none !important;
  box-shadow: none !important;
}

main>#screens .interface-carousel .interface-slide-media {
  height: 470px !important;
  min-height: 470px !important;
  width: 100% !important;
  display: flex !important;
  align-items: flex-start !important;
  justify-content: center !important;
}

main>#screens .interface-carousel .interface-phone {
  width: 250px !important;
  max-width: 82% !important;
  margin: 0 auto !important;
  transform: none !important;
  animation: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .interface-phone img {
  max-height: 455px !important;
  transform: none !important;
  animation: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .interface-slide-copy {
  width: 100% !important;
  max-width: 304px !important;
  text-align: left !important;
  opacity: 1 !important;
  visibility: visible !important;
  transform: none !important;
  animation: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .interface-slide-copy * {
  transform: none !important;
  animation: none !important;
  transition: none !important;
}

/* Keep the last group fully visible when the carousel reaches its end. */
main>#screens .interface-carousel .showcase-carousel__track::after {
  content: "";
  display: block;
  flex: 0 0 1px;
}

/* True full-width dark chapters. */
main>#iteration,
main>#learnings {
  width: 100vw !important;
  max-width: none !important;
  margin-left: calc(50% - 50vw) !important;
  margin-right: calc(50% - 50vw) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

@media(max-width:760px) {

  main>#screens .interface-carousel .showcase-carousel__slide,
  main>#screens .interface-carousel .showcase-carousel__slide.is-active,
  main>#screens .interface-carousel .showcase-carousel__slide.is-next,
  main>#screens .interface-carousel .showcase-carousel__slide.is-prev {
    flex-basis: calc(100vw - 44px) !important;
    width: calc(100vw - 44px) !important;
    min-width: calc(100vw - 44px) !important;
    max-width: calc(100vw - 44px) !important;
  }

  main>#screens .interface-carousel .interface-slide-media {
    height: 500px !important;
    min-height: 500px !important;
  }

  main>#screens .interface-carousel .interface-phone {
    width: 270px !important;
  }

  main>#screens .interface-carousel .showcase-carousel__controls {
    margin-bottom: 14px !important;
  }
}

/* v14: Interface navigation belongs beside the section title, not above the gallery. */
main>#screens .interface-section-intro {
  display: flex !important;
  align-items: flex-start !important;
  justify-content: space-between !important;
  gap: 32px !important;
  width: 100% !important;
}

main>#screens .interface-section-heading {
  flex: 1 1 auto !important;
  min-width: 0 !important;
}

main>#screens .interface-section-intro .interface-top-controls {
  position: static !important;
  flex: 0 0 auto !important;
  width: auto !important;
  height: 46px !important;
  margin: 2px 0 0 auto !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 12px !important;
  pointer-events: auto !important;
}

main>#screens .interface-section-intro .showcase-carousel__counter {
  display: none !important;
}

main>#screens .interface-section-intro .showcase-carousel__buttons {
  position: static !important;
  width: auto !important;
  height: 46px !important;
  display: flex !important;
  gap: 8px !important;
  transform: none !important;
}

main>#screens .interface-section-intro .showcase-carousel__button {
  width: 46px !important;
  height: 46px !important;
  min-width: 46px !important;
  border-radius: 50% !important;
  box-shadow: none !important;
  transform: none !important;
  transition: none !important;
}

main>#screens .interface-carousel .showcase-carousel__controls {
  display: none !important;
}

@media(max-width:760px) {
  main>#screens .interface-section-intro {
    gap: 18px !important;
  }

  main>#screens .interface-section-intro .interface-top-controls {
    margin-top: 0 !important;
  }

  main>#screens .interface-section-intro .showcase-carousel__button {
    width: 42px !important;
    height: 42px !important;
    min-width: 42px !important;
  }
}

/* v15: keep Interface arrows inside the carousel root so the controls remain functional.
   Align them to the right of the descriptive copy, at the end of the intro line. */
main>#screens .interface-carousel .interface-section-intro {
  align-items: flex-end !important;
}

main>#screens .interface-carousel .interface-top-controls {
  align-self: flex-end !important;
  margin: 0 0 2px auto !important;
}

main>#screens .interface-carousel .interface-top-controls .showcase-carousel__buttons {
  position: static !important;
  transform: none !important;
}

/* v16: Interface arrows must remain visible and clickable beside the intro copy. */
main>#screens .interface-carousel .interface-section-intro .interface-top-controls {
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  position: static !important;
  flex: 0 0 auto !important;
  width: auto !important;
  height: 46px !important;
  margin: 0 0 2px auto !important;
  padding: 0 !important;
  z-index: 20 !important;
}

main>#screens .interface-carousel .interface-section-intro .showcase-carousel__buttons {
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  position: static !important;
  width: auto !important;
  height: 46px !important;
  gap: 8px !important;
  transform: none !important;
}

main>#screens .interface-carousel .interface-section-intro .showcase-carousel__button {
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  pointer-events: auto !important;
  position: static !important;
  align-items: center !important;
  justify-content: center !important;
  width: 46px !important;
  height: 46px !important;
  min-width: 46px !important;
  margin: 0 !important;
  cursor: pointer !important;
}

main>#screens .interface-carousel .interface-section-intro .showcase-carousel__button:disabled {
  pointer-events: auto !important;
  opacity: .45 !important;
}

@media(max-width:760px) {
  main>#screens .interface-carousel .interface-section-intro .interface-top-controls {
    height: 42px !important;
  }

  main>#screens .interface-carousel .interface-section-intro .showcase-carousel__buttons {
    height: 42px !important;
  }

  main>#screens .interface-carousel .interface-section-intro .showcase-carousel__button {
    width: 42px !important;
    height: 42px !important;
    min-width: 42px !important;
  }
}