/* ============================================================
   VINST CASE STUDY — PAGE STYLES
============================================================ */

.vi-page {
  background: #EBE8E0;
}

/* ============================================================
   NAV — transparent overlay, floats above the hero image.
============================================================ */

.vi-page .nav {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  z-index: 10;
}

.vi-page .nav .nav-logo img {
  filter: brightness(0) invert(1);
}

.vi-page .nav .nav-link {
  color: #fff;
}

.vi-page .nav .nav-btn {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

/* ============================================================
   DARK SECTION (hero + quote — one shared background)
============================================================ */

.cs-dark-section {
  position: relative;
  overflow-x: clip;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.cs-dark-bg {
  position: absolute;
  inset: 0;
  top: -250px;
  width: 100%;
  height: calc(100% + 250px);
  object-fit: cover;
  object-position: center top;
  display: block;
  z-index: 0;
  /* Fade photo out before the laptop — works on all screen sizes */
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 60%, transparent 82%);
  mask-image:         linear-gradient(to bottom, black 0%, black 60%, transparent 82%);
}

/* Overlay also fades out at the same threshold */
.vi-dark-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(0, 0, 0, 0.50) 55%,
    rgba(0, 0, 0, 0.60) 65%,
    transparent 82%
  );
  z-index: 0;
}

/* Hero content — starts near bottom of viewport, grows with content */
.cs-hero-content {
  position: relative;
  z-index: 1;
  height: 100vh;
  display: flex;
  align-items: flex-start;
  padding-top: 70vh;
}

.cs-hero-inner {
  width: 55%;
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 4.5vw, 40px);
}

.cs-hero-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
  align-self: flex-start;
  filter: brightness(0) invert(1);
}

.cs-hero-title {
  font-weight: 700;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -1.28px;
  color: #fff;
  margin: 0;
  white-space: nowrap;
}

.cs-hero-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cs-hero-body p {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  letter-spacing: -0.32px;
}

/* ============================================================
   QUOTE
============================================================ */

.cs-quote-layout {
  position: relative;
  z-index: 1;
  margin-top: 25vw;
  padding-bottom: clamp(60px, 8vw, 100px);
}

.cs-quote-inner {
  padding-top: 4vw;
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 5vw, 80px);
  align-items: center;
  margin-top: 250px;
}

.cs-quote-heading {
  font-weight: 700;
  font-size: clamp(48px, 6.9vw, 100px);
  line-height: 1;
  letter-spacing: -2px;
  color: #fff;
  margin: 0;
  text-align: center;
}

/* ============================================================
   QUOTE MOCKUP
============================================================ */

.cs-quote-image {
  width: 100%;
}

.cs-quote-image img {
  width: 100%;
  max-width: 900px;
  height: auto;
  display: block;
  margin: 0 auto -150px;
  position: relative;
}

/* ============================================================
   CONTEXT BODY TEXT
============================================================ */

.cs-context {
  position: relative;
  padding-bottom: clamp(40px, 8vw, 80px);
}

.cs-context-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: left;
}

.cs-context-inner p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--body);
  margin: 0;
}

/* ============================================================
   SCREENS GRID
============================================================ */

.cs-screens {
  padding-bottom: clamp(80px, 8vw, 160px);
}

.cs-screens > .container {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cs-screens > .container > *,
.vi-half-row > * {
  margin-top: -1px;
}

/* ============================================================
   ROLE PILLS — hero tags
============================================================ */

.vi-role-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.vi-role-pill {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
}

/* ============================================================
   ITERATION DIVIDERS
============================================================ */

.vi-iter-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: clamp(8px, 1vw, 12px) 0;
}

.vi-iter-line {
  flex: 1;
  height: 1px;
  background: rgba(38, 20, 7, 0.18);
}

.vi-iter-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(38, 20, 7, 0.4);
  white-space: nowrap;
}

/* ============================================================
   BASE CARD
   Same height ratio as VOM: 719 / 1282 ≈ 56.1%
============================================================ */

.vi-card {
  border-radius: 36px;
  overflow: hidden;
  width: 100%;
  position: relative;
  height: clamp(320px, 56.1vw, 720px);
  box-sizing: border-box;
}

.vi-card--beige { background: #ebe8e0; }
.vi-card--dark  { background: #111111; }
.vi-card--ai    { background: #0a2916; }

/* Auto-height cards — driven by content, min-height ensures they breathe */
.vi-card--auto {
  height: auto;
  min-height: clamp(260px, 30vw, 480px);
}

/* ============================================================
   1 — RESEARCH STATS CARD
============================================================ */

.vi-stats-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(32px, 6vw, 100px);
  height: calc(100% - 40px); /* leave room for caption */
  padding: clamp(40px, 5vw, 72px) clamp(32px, 5vw, 80px) 0;
  box-sizing: border-box;
}

.vi-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.vi-stat-num {
  font-size: clamp(52px, 5.5vw, 88px);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -2px;
}

.vi-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
  max-width: 110px;
  line-height: 1.4;
}

.vi-stat-caption {
  position: absolute;
  bottom: clamp(20px, 2.5vw, 32px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ============================================================
   2 — AI CALLOUT CARD
============================================================ */

.vi-ai-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(20px, 2.5vw, 32px);
  padding: clamp(40px, 5vw, 72px) clamp(40px, 6vw, 96px);
  box-sizing: border-box;
}

.vi-ai-badge {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  width: fit-content;
}

.vi-ai-heading {
  font-size: clamp(28px, 3.2vw, 52px);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -1px;
  margin: 0;
}

.vi-ai-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.5vw, 20px);
  max-width: 600px;
}

.vi-ai-list li {
  font-size: clamp(14px, 1.2vw, 16px);
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.65;
  padding-left: 24px;
  position: relative;
}

.vi-ai-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #229959;
  font-weight: 600;
}

/* ============================================================
   3 — UX PILLARS CARD
============================================================ */

.vi-pillars-wrap {
  padding: clamp(40px, 5vw, 64px) clamp(40px, 6vw, 80px);
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 3vw, 40px);
  height: 100%;
  box-sizing: border-box;
}

/* Shared label style */
.vi-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(38, 20, 7, 0.45);
}

.vi-label--muted  { color: rgba(38, 20, 7, 0.45); }
.vi-label--dim    { color: rgba(255, 255, 255, 0.35); }

.vi-pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 40px) clamp(24px, 4vw, 64px);
  flex: 1;
  align-content: center;
}

.vi-pillar {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.vi-pillar-num {
  font-size: 12px;
  font-weight: 700;
  color: #229959;
  letter-spacing: 0.08em;
}

.vi-pillar-title {
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
  margin: 0;
}

.vi-pillar-desc {
  font-size: 13px;
  color: var(--body);
  line-height: 1.65;
  opacity: 0.7;
  margin: 0;
}

/* ============================================================
   4 — FEATURE TILES CARD
============================================================ */

.vi-card--tiles {
  height: clamp(260px, 38vw, 500px);
}

.vi-tiles-wrap {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(28px, 4vw, 48px) clamp(32px, 5vw, 64px);
  gap: clamp(20px, 3vw, 36px);
  box-sizing: border-box;
}

.vi-tiles-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(10px, 1.5vw, 20px);
  flex: 1;
  align-items: center;
}

.vi-tile {
  aspect-ratio: 1;
  border-radius: clamp(12px, 1.5vw, 20px);
  background: rgba(38, 20, 7, 0.07);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 1.5vw, 18px);
}

.vi-tile img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.vi-tile--green {
  background: #229959;
}

/* ============================================================
   5 — "GREY BY DESIGN" TEXT CARD
============================================================ */

.vi-text-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(12px, 1.5vw, 20px);
  padding: clamp(40px, 5vw, 72px) clamp(40px, 6vw, 96px);
  box-sizing: border-box;
}

.vi-text-heading {
  font-size: clamp(32px, 3.5vw, 56px);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -1.2px;
  margin: 0;
}

.vi-text-body {
  font-size: clamp(14px, 1.2vw, 16px);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.75;
  max-width: 560px;
  margin: 0;
}

/* ============================================================
   MY ROLE CARD
============================================================ */

.vi-role-card-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  height: 100%;
  align-items: center;
  padding: clamp(40px, 5vw, 64px) clamp(40px, 6vw, 80px);
  box-sizing: border-box;
}

.vi-role-card-left {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.5vw, 20px);
}

.vi-role-card-title {
  font-size: clamp(28px, 3vw, 48px);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.1;
  letter-spacing: -1px;
  margin: 0;
}

.vi-role-card-desc {
  font-size: clamp(13px, 1.1vw, 15px);
  color: var(--body);
  line-height: 1.7;
  opacity: 0.8;
  margin: 0;
}

.vi-role-card-right {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: center;
}

.vi-resp-tag {
  display: inline-flex;
  padding: 7px 14px;
  border-radius: 100px;
  border: 1px solid rgba(38, 20, 7, 0.18);
  font-size: 13px;
  font-weight: 500;
  color: var(--dark);
  background: transparent;
}

.vi-resp-tag--ai {
  background: #0a2916;
  color: #fff;
  border-color: transparent;
}

/* ============================================================
   HALF-ROW  (rows 6 & 7 — two cards side by side)
============================================================ */

.vi-half-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.vi-card--half {
  height: clamp(240px, 47.6vw, 610px);
}

.vi-half-fig {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
  height: 100%;
  padding: clamp(16px, 2.5vw, 32px) clamp(12px, 1.8vw, 24px) clamp(16px, 2vw, 24px);
  box-sizing: border-box;
  margin: 0;
}

.vi-half-fig img {
  flex: 1;
  min-height: 0;
  width: 100%;
  object-fit: contain;
  display: block;
}

/* ============================================================
   WIDE FIGURE  (card 8 — full-width wireframe)
============================================================ */

.vi-wide-fig {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
  height: 100%;
  padding: clamp(24px, 3vw, 48px) clamp(32px, 4vw, 64px) clamp(40px, 4vw, 64px);
  box-sizing: border-box;
  margin: 0;
}

.vi-wide-fig img {
  flex: 1;
  min-height: 0;
  width: 100%;
  max-width: 1040px;
  object-fit: contain;
  display: block;
}

/* ============================================================
   FIGCAPTIONS
============================================================ */

.vi-half-fig figcaption,
.vi-wide-fig figcaption {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 400;
  font-family: var(--sans);
  color: var(--dark);
  opacity: 0.4;
  text-align: center;
  margin-top: -200px;
  padding: 0;
  line-height: 24px;
  position: relative;
  z-index: 2;
}

/* ============================================================
   RESPONSIVE  ≤ 900px
============================================================ */

@media (max-width: 900px) {
  .vi-half-row {
    grid-template-columns: 1fr;
  }

  .vi-card--half {
    height: clamp(280px, 56.1vw, 720px);
  }

  .vi-stats-wrap {
    flex-wrap: wrap;
    gap: clamp(24px, 4vw, 48px);
  }

  .vi-pillars-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE  ≤ 768px
============================================================ */

@media (max-width: 768px) {
  .cs-hero-title {
    font-size: clamp(32px, 7vw, 56px);
    white-space: normal;
  }

  .vi-tiles-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .vi-ai-inner {
    padding: clamp(28px, 4vw, 48px);
  }

  .vi-pillars-wrap {
    padding: clamp(28px, 4vw, 48px);
  }
}

/* ============================================================
   MOBILE  ≤ 480px
============================================================ */

@media (max-width: 480px) {

  /* Hero */
  .cs-dark-bg {
    height: 100%;
  }

  .cs-hero-content {
    height: auto;
    padding-top: calc(100svh - 160px);
    align-items: flex-start;
    padding-bottom: 0;
  }

  .cs-hero-inner {
    width: 100%;
    gap: 20px;
  }

  .cs-hero-logo { height: 36px; }

  .cs-hero-title {
    font-size: 28px;
    white-space: normal;
    letter-spacing: -0.5px;
    line-height: 1.15;
  }

  .cs-hero-body { gap: 12px; }

  .cs-hero-body p {
    font-size: 14px;
    line-height: 1.65;
  }

  /* Quote */
  .cs-quote-layout {
    margin-top: -150px;
    padding-bottom: 48px;
  }

  .cs-quote-inner { padding-top: 32px; }

  .cs-quote-image img {
    margin-bottom: -80px;
  }

  .cs-context {
    padding-top: 110px;
  }

  .cs-quote-heading {
    font-size: 36px;
    letter-spacing: -1px;
    line-height: 1.05;
    color: #1A1814;
  }

  /* Context */
  .cs-context {
    padding-top: 48px;
    padding-bottom: 40px;
  }

  .cs-context-inner p {
    font-size: 15px;
    line-height: 1.7;
  }

  /* Screens grid */
  .cs-screens > .container { gap: 16px; }

  /* Standard cards */
  .vi-card {
    height: clamp(260px, 72vw, 360px);
    border-radius: 24px;
  }

  .vi-card--auto {
    height: auto;
    min-height: 0;
  }

  /* Role pills */
  .vi-role-pills { gap: 6px; }
  .vi-role-pill  { font-size: 11px; padding: 4px 10px; }

  /* Role card */
  .vi-role-card-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px 24px;
    align-items: flex-start;
  }

  .vi-role-card-title { font-size: 24px; letter-spacing: -0.5px; }

  /* Stats */
  .vi-stats-wrap {
    flex-wrap: wrap;
    gap: 20px;
    padding: 24px 24px 0;
  }

  .vi-stat-num {
    font-size: 44px;
  }

  /* AI card */
  .vi-ai-inner {
    padding: 28px 24px;
    gap: 16px;
  }

  .vi-ai-heading { font-size: 24px; letter-spacing: -0.5px; }

  .vi-ai-list li { font-size: 13px; }

  /* Pillars */
  .vi-pillars-wrap { padding: 28px 24px; }

  .vi-pillars-grid { grid-template-columns: 1fr; gap: 20px; }

  /* Tiles */
  .vi-card--tiles {
    height: clamp(200px, 55vw, 280px);
  }

  .vi-tiles-wrap { padding: 20px 20px; gap: 16px; }

  .vi-tiles-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }

  /* Text card */
  .vi-text-inner { padding: 28px 24px; }

  .vi-text-heading { font-size: 26px; }

  /* Half row */
  .vi-half-row { gap: 16px; }

  .vi-card--half { height: clamp(220px, 65vw, 300px); }

  .vi-half-fig { padding: 20px 16px 10px; }

  .vi-wide-fig { padding: 20px 16px 10px; }

  .vi-half-fig figcaption,
  .vi-wide-fig figcaption {
    font-size: 12px;
    margin-top: -32px;
  }
}

/* ============================================================
   TABLET PORTRAIT + LANDSCAPE  768px – 1024px
============================================================ */

@media (min-width: 768px) and (max-width: 1024px) {
  .cs-hero-inner { width: 70%; }

  .cs-hero-title { font-size: clamp(36px, 4.8vw, 52px); }

  /* Let hero grow with its content so paragraphs never overflow into the quote */
  .cs-hero-content {
    height: auto;
    min-height: 100vh;
    padding-top: 45vh;
    padding-bottom: 60px;
  }

  .cs-quote-layout { margin-top: 8vw; }

  .cs-quote-inner { margin-top: 40px; }

  .cs-quote-image img { margin-bottom: -100px; }

  .cs-context { padding-top: clamp(140px, 16vw, 200px); }

.cs-context-inner { max-width: 640px; }

  .vi-card         { height: clamp(300px, 50vw, 560px); }
  .vi-card--tiles  { height: clamp(200px, 28vw, 340px); }

  .vi-half-row          { grid-template-columns: 1fr 1fr; }
  .vi-card--half        { height: clamp(240px, 40vw, 420px); }

  .vi-role-card-inner   { gap: clamp(24px, 3vw, 48px); }

  .vi-half-fig figcaption,
  .vi-wide-fig figcaption {
    font-size: 13px;
    margin-top: -56px;
  }
}

/* ============================================================
   SMALL LAPTOP  1025px – 1280px
============================================================ */

@media (min-width: 1025px) and (max-width: 1280px) {
  .cs-hero-inner    { width: 62%; }
  .cs-context-inner { max-width: 720px; }
}