/* ============================================
   Adi Yagoda — portfolio redesign
   Design system v3: design-system/inspired-by-3-portfolios.md
   Style reference: jennhuang.com screenshots — hard black-bordered
   cards, solid black pill tags, bold serif titles, purple inline
   links, blue circular step badges on black panels.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700;9..144,900&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Color — white base, hard black borders, illustration-style accents */
  --bg: #FFFFFF;
  --bg-raised: #F5F5F1;
  --bg-raised-2: #EDEDE7;
  --card-bg: #F9F9F9;
  --text-primary: #0A0A0A;
  --text-secondary: #45454A;
  --text-tertiary: #6B6B70;
  --border: #0A0A0A;
  --border-soft: #D8D8D2;

  /* Purple — primary accent: links, labels, icons. The only one of the
     3 brand colors that clears 4.5:1 text contrast on white, so it stays
     the sole text/link accent; teal + yellow are fills/panels only. */
  --accent-purple: #9B51E0;
  --accent-purple-on-dark: #AF73E6;
  --accent-purple-bg: #F0E5FB;

  /* Yellow — accent: step badges, dark-panel titles, card washes */
  --accent-yellow: #FDDA50;
  --accent-yellow-hover: #F0C63A;
  --accent-yellow-bg: #FBEDD0;

  /* Teal — accent: card washes, dark-panel titles/icons, icon chips */
  --accent-teal: #27C0B8;
  --accent-teal-bg: #DBF5F2;

  /* Button — solid-black CTA pill (case-links) */
  --button-bg: #0A0A0A;
  --button-bg-hover: #2A2A2A;
  --button-text: #FAFAF8;

  /* Black-panel sections */
  --panel-bg: #0A0A0A;
  --panel-bg-raised: #171717;
  --panel-text: #FAFAF8;
  --panel-text-secondary: #A8A8A8;
  --panel-border: #2A2A2A;

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: clamp(4rem, 10vw, 8rem);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-img: 8px;
  --radius-pill: 6px;

  /* Motion — see skills/animations-and-micro-interactions.md */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-feedback: 150ms;
  --dur-state: 250ms;
  --dur-layout: 400ms;
  --dur-entrance: 650ms;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-purple);
  color: #FFFFFF;
}

a {
  color: inherit;
  text-decoration: none;
}

img, video {
  max-width: 100%;
  display: block;
}

.device-frame video {
  width: 100%;
  height: auto;
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (max-width: 640px) {
  .wrap { padding: 0 var(--space-md); }
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.nav-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.nav-mark span { color: var(--accent-purple); }

.nav-links {
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.nav-links a {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  transition: color var(--dur-feedback) var(--ease-out-quart);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent-purple);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-state) var(--ease-out-quart);
}

.nav-links a:hover {
  color: var(--accent-purple);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-back {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--dur-feedback) var(--ease-out-quart),
              transform var(--dur-feedback) var(--ease-out-quart);
  display: inline-block;
}
.nav-back:hover {
  color: var(--accent-purple);
  transform: translateX(-3px);
}

/* ---------- Hero ---------- */

.hero {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg) var(--space-xl);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-md);
  align-items: start;
}

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-lg); }
}

.hero-photo {
  border: 2px solid var(--border);
  border-radius: var(--radius-img);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  max-width: 242px;
}

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

@media (max-width: 860px) {
  .hero-photo { max-width: 176px; }
}

.bio {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0 0 var(--space-md) 0;
  opacity: 0;
  animation: reveal var(--dur-entrance) var(--ease-out-quart) 150ms forwards;
}

.bio strong {
  color: var(--accent-purple);
  font-weight: 700;
}

.hero > div > .cs-body {
  margin: 0;
  opacity: 0;
  animation: reveal var(--dur-entrance) var(--ease-out-quart) 280ms forwards;
}

@keyframes reveal {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Scroll reveal system ---------- */
/* .reveal elements start hidden; script.js adds .in-view via
   IntersectionObserver (fires immediately for already-visible
   elements too, so this also covers above-the-fold content).
   nth-child rules stagger groups without extra markup. */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-layout) var(--ease-out-quart),
              transform var(--dur-layout) var(--ease-out-quart);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.7);
  transition: opacity var(--dur-state) var(--ease-out-quart),
              transform var(--dur-state) var(--ease-out-quart);
}

.reveal-scale.in-view {
  opacity: 1;
  transform: scale(1);
}

.case-list .case-row:nth-child(1),
.case-grid .case-row:nth-child(1) { transition-delay: 0ms; }
.case-list .case-row:nth-child(2),
.case-grid .case-row:nth-child(2) { transition-delay: 80ms; }
.case-list .case-row:nth-child(3),
.case-grid .case-row:nth-child(3) { transition-delay: 160ms; }
.case-grid .case-row:nth-child(4) { transition-delay: 240ms; }

.decision-grid .decision-card:nth-child(1) { transition-delay: 0ms; }
.decision-grid .decision-card:nth-child(2) { transition-delay: 60ms; }
.decision-grid .decision-card:nth-child(3) { transition-delay: 120ms; }
.decision-grid .decision-card:nth-child(4) { transition-delay: 180ms; }
.decision-grid .decision-card:nth-child(5) { transition-delay: 240ms; }

.checklist li:nth-child(1) { transition-delay: 0ms; }
.checklist li:nth-child(2) { transition-delay: 40ms; }
.checklist li:nth-child(3) { transition-delay: 80ms; }
.checklist li:nth-child(4) { transition-delay: 120ms; }
.checklist li:nth-child(5) { transition-delay: 160ms; }
.checklist li:nth-child(6) { transition-delay: 200ms; }
.checklist li:nth-child(7) { transition-delay: 240ms; }

.roadmap .roadmap-item:nth-child(1) { transition-delay: 0ms; }
.roadmap .roadmap-item:nth-child(2) { transition-delay: 120ms; }
.roadmap .roadmap-item:nth-child(3) { transition-delay: 240ms; }

.stat-row > div:nth-child(1) { transition-delay: 0ms; }
.stat-row > div:nth-child(2) { transition-delay: 80ms; }
.stat-row > div:nth-child(3) { transition-delay: 160ms; }

/* ---------- Section labels ---------- */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-top: var(--space-2xl);
  border-top: 2px solid var(--border);
}

/* When a section-head follows a group of cards, push it clear of the card
   above and drop the rule — the cards already read as a visual boundary. */
.case-list + .section-head,
.case-grid + .section-head {
  margin-top: var(--space-2xl);
  border-top: none;
  padding-top: 0;
}

.section-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--accent-purple);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0.3rem 0 0 0;
  color: var(--text-primary);
}

/* ---------- Case study rows ---------- */

.case-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .case-grid { grid-template-columns: 1fr; }
}

.case-row.grid-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
}

.case-row.grid-card .case-media {
  aspect-ratio: 21 / 9;
  min-height: 0;
  border-bottom: 1px solid var(--border-soft);
}

.case-row.grid-card .case-copy {
  flex: 1;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md);
}

.case-row.grid-card .case-copy-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 0;
}

.case-row.grid-card .case-title {
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
}

.case-row.grid-card .case-links {
  flex-shrink: 0;
}

.case-row.grid-card .case-links a,
.case-row.grid-card .case-links span {
  padding: 0.7rem 1rem;
}

.case-row {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-img);
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-layout) var(--ease-out-quart),
              transform var(--dur-state) var(--ease-out-quart),
              box-shadow var(--dur-state) var(--ease-out-quart);
}

.case-row.in-view {
  opacity: 1;
  transform: translateY(0);
}

.case-row:hover {
  box-shadow: 6px 6px 0 var(--border);
}

.case-row:active {
  box-shadow: 2px 2px 0 var(--border);
  transition-duration: var(--dur-feedback);
}

.case-row.has-media {
  grid-template-columns: 0.75fr 1.25fr;
}

@media (max-width: 860px) {
  .case-row.has-media {
    grid-template-columns: 1fr;
  }
}

/* Featured cards (home "Recent case studies") — same hard black stroke +
   shadow as the other cards on the page, just with a larger corner radius
   and the screenshot inset with its own frame. */
.case-list .case-row {
  border-radius: 12px;
  background: var(--card-bg);
}

.case-list .case-copy {
  padding: 46px 16px 46px 40px;
}

.case-list .case-media {
  padding: 46px 40px 46px 16px;
  display: flex;
  align-items: center;
}

.case-list .case-media img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.case-copy {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  justify-content: center;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Chips are quiet metadata labels — outlined, not filled. They should read
   as supporting tags, never compete with the primary action button. */
.tag {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.6rem;
  color: var(--text-tertiary);
  background: transparent;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.5rem;
  display: inline-flex;
  align-items: center;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Flags a card as an external article/link rather than an in-site project */
.tag-article {
  background: transparent;
  color: var(--accent-purple);
  border-color: var(--accent-purple);
}

.case-client {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
  color: var(--text-primary);
}

.case-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 46ch;
}

.case-stats {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-xs);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text-primary);
  font-weight: 700;
}

.stat-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.68rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.case-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
}

/* The primary action reads as a real button — solid black filled pill,
   clear affordance, ~44px tall touch target. This is the loudest element
   in the card's copy. */
.case-links a,
.case-links span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--button-text);
  background: var(--button-bg);
  border-radius: var(--radius-pill);
  padding: 0.95rem 1.15rem;
  line-height: 1;
  transition: background var(--dur-feedback) var(--ease-out-quart),
              transform var(--dur-feedback) var(--ease-out-quart);
}

.case-links span::after {
  content: '\2197';
  display: inline-block;
  transition: transform var(--dur-feedback) var(--ease-out-quart);
}

.case-row:hover .case-links span::after {
  transform: translate(2px, -2px);
}

.case-row:hover .case-links span,
.case-links a:hover {
  background: var(--button-bg-hover);
}

.case-media {
  overflow: hidden;
  min-height: 260px;
  min-width: 0;
}

.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

/* ---------- Footer / colophon ---------- */

.footer {
  margin-top: var(--space-2xl);
  border-top: 2px solid var(--border);
  padding: var(--space-lg) 0 var(--space-xl);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer a {
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-feedback) var(--ease-out-quart),
              border-color var(--dur-feedback) var(--ease-out-quart);
}
.footer a:hover { color: var(--accent-purple); border-color: var(--accent-purple); }

/* ---------- Case study page specific ---------- */

.cs-header {
  padding: var(--space-xl) 0 var(--space-lg);
}

.cs-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.cs-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md) 0;
  max-width: 20ch;
}

.cs-intro {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 62ch;
  line-height: 1.6;
}

/* Device frame — simple browser chrome wrapping screenshots,
   consistent with the hard black-border card language. */

.device-frame {
  border: 2px solid var(--border);
  border-radius: var(--radius-img);
  overflow: hidden;
  background: var(--bg);
}

.device-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 0.8rem;
  border-bottom: 2px solid var(--border);
  background: var(--bg-raised);
}

.device-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border-soft);
}

.cs-hero-img {
  margin-top: var(--space-lg);
}

.cs-hero-img > img {
  border: 2px solid var(--border);
  border-radius: 16px;
}

.cs-section {
  padding-top: var(--space-2xl);
}

/* UI designs page groups unrelated projects one after another — a plain
   rule sits centered in the whitespace between them, matching the divider
   above "Recent case studies" on the homepage rather than hugging either
   project's content. */
.ui-designs-page .cs-section + .cs-section {
  margin-top: var(--space-2xl);
  border-top: 2px solid var(--border);
}

.cs-section-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  color: var(--accent-purple);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.cs-section-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-md) 0;
  max-width: 22ch;
}

.cs-body {
  color: var(--text-secondary);
  max-width: 68ch;
  font-size: 1rem;
}
.cs-body + .cs-body { margin-top: var(--space-sm); }

.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (max-width: 720px) {
  .decision-grid { grid-template-columns: 1fr; }
}

.decision-card {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.decision-icon {
  display: block;
  width: 24px;
  height: 24px;
  padding: 8px;
  box-sizing: content-box;
  border-radius: 50%;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

/* Cycle icon chip color across cards for character — glyph stays
   --text-primary throughout so contrast never depends on chip color. */
.decision-grid .decision-card:nth-child(3n+1) .decision-icon { background: var(--accent-purple-bg); }
.decision-grid .decision-card:nth-child(3n+2) .decision-icon { background: var(--accent-teal-bg); }
.decision-grid .decision-card:nth-child(3n) .decision-icon { background: var(--accent-yellow-bg); }

.decision-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 var(--space-xs) 0;
}

.decision-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin: 0;
}

.decision-card .why {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.72rem;
  color: var(--accent-purple);
  margin-top: var(--space-xs);
  display: block;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1.5rem;
}

@media (max-width: 640px) {
  .checklist { grid-template-columns: 1fr; }
}

.checklist li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding-left: 1.3rem;
  position: relative;
}

.checklist li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-purple);
  font-weight: 700;
}

.screen-block {
  margin-top: var(--space-lg);
}

.screen-media-centered {
  display: block;
  margin: 0 auto;
  border: 2px solid var(--border);
  border-radius: 12px;
}

/* Row of smaller screens shown side by side, e.g. a short app flow —
   each shrinks to a fixed max-width instead of stacking full width. */
.screen-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.screen-row .screen-block {
  margin-top: 0;
  max-width: 304px;
}

@media (max-width: 640px) {
  .screen-row { gap: var(--space-md); }
  .screen-row .screen-block { max-width: 221px; }
}

/* One-at-a-time carousel — arrows + dots switch slides via transform,
   so only one screen shows at a time instead of a peeking row. */
.carousel {
  margin-top: var(--space-lg);
}

.carousel-stage {
  position: relative;
}

.carousel-viewport {
  overflow: hidden;
  border-radius: 12px;
}

.carousel-track {
  display: flex;
  transition: transform var(--dur-layout) var(--ease-out-quart);
}

@media (prefers-reduced-motion: reduce) {
  .carousel-track { transition: none; }
}

.carousel-item {
  flex: 0 0 100%;
  min-width: 0;
}

.carousel-item img {
  border-radius: 12px;
  width: 100%;
}

/* Arrows sit outside .carousel-viewport (a sibling in .carousel-stage)
   so their focus ring is never clipped by the viewport's overflow:hidden. */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border);
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--dur-feedback) var(--ease-out-quart),
              transform var(--dur-feedback) var(--ease-out-quart);
}

.carousel-arrow svg {
  width: 20px;
  height: 20px;
}

.carousel-arrow:hover {
  background: var(--bg-raised);
}

.carousel-arrow:active {
  transform: translateY(-50%) scale(0.94);
}

.carousel-arrow-prev { left: var(--space-sm); }
.carousel-arrow-next { right: var(--space-sm); }

.carousel-dots {
  display: flex;
  justify-content: center;
  margin-top: var(--space-xs);
}

.carousel-dot {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  cursor: pointer;
}

.carousel-dot::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-soft);
  transition: background var(--dur-feedback) var(--ease-out-quart),
              transform var(--dur-feedback) var(--ease-out-quart);
}

.carousel-dot[aria-current="true"]::before {
  background: var(--text-primary);
  transform: scale(1.3);
}

.screen-caption {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-top: var(--space-sm);
  max-width: 60ch;
}

.screen-caption strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ---------- Compare slider — light/dark screenshot before-after ---------- */

.compare-stage {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  line-height: 0;
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
}

.compare-img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  -webkit-user-drag: none;
}

.compare-clip {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 50%;
  overflow: hidden;
}

.compare-clip .compare-img {
  width: var(--compare-stage-width, 100%);
  max-width: none;
}

.compare-label {
  position: absolute;
  bottom: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  z-index: 2;
  pointer-events: none;
}

.compare-label-light {
  left: var(--space-sm);
  background: rgba(250, 250, 248, 0.92);
  color: var(--text-primary);
  border: 1px solid var(--border-soft);
}

.compare-label-dark {
  right: var(--space-sm);
  background: rgba(10, 10, 10, 0.85);
  color: var(--panel-text);
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--bg);
  box-shadow: 0 0 0 1px rgba(10, 10, 10, 0.25);
  transform: translateX(-50%);
  z-index: 3;
}

.compare-handle-grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  box-shadow: 0 2px 6px rgba(10, 10, 10, 0.2);
  transition: transform var(--dur-feedback) var(--ease-out-quart);
}

.compare-handle-grip svg {
  width: 18px;
  height: 18px;
}

.compare-stage:hover .compare-handle-grip,
.compare-handle:focus-visible .compare-handle-grip {
  transform: translate(-50%, -50%) scale(1.08);
}

.compare-handle:focus-visible {
  outline: none;
}

.compare-handle:focus-visible .compare-handle-grip {
  outline: 2px solid var(--accent-purple);
  outline-offset: 2px;
}

.stat-row {
  display: flex;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.stat-big {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  color: var(--text-primary);
  font-weight: 900;
  line-height: 1;
}

.stat-cap {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.4rem;
}

/* Roadmap — numbered circle stepper, echoes the "Process" slide reference */

.roadmap {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
}

.roadmap-item {
  display: grid;
  grid-template-columns: 40px 110px 1fr;
  align-items: start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  position: relative;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  bottom: -4px;
  width: 2px;
  background: var(--border-soft);
}

.roadmap-item:last-child::before { display: none; }

.roadmap-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-yellow);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.roadmap-q {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-primary);
  padding-top: 0.6rem;
}

.roadmap-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding-top: 0.6rem;
}

@media (max-width: 640px) {
  .roadmap-item {
    grid-template-columns: 40px 1fr;
    row-gap: 0.3rem;
  }
  .roadmap-num { grid-row: 1 / 3; }
  .roadmap-q { grid-column: 2; grid-row: 1; padding-top: 0; }
  .roadmap-desc { grid-column: 2; grid-row: 2; padding-top: 0; }
}

.cta-block {
  padding: var(--space-2xl) 0;
  text-align: left;
}

.cta-block h3 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 700;
  margin: 0 0 var(--space-sm) 0;
  max-width: 20ch;
}

.cta-links {
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: var(--space-md);
}

.cta-links a {
  border-bottom: 1px solid var(--accent-purple);
  padding-bottom: 2px;
  transition: color 0.15s ease-out;
}
.cta-links a:hover { color: var(--accent-purple); }

/* ---------- Next case study nav ---------- */

.cs-next {
  margin-top: var(--space-2xl);
  padding: clamp(3.45rem, 8.05vw, 6.33rem) 0;
  background: var(--panel-bg);
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
}

.cs-next-eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-purple-on-dark);
}

.cs-next-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.cs-next-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: var(--space-lg);
  background: var(--panel-bg-raised);
  border: 2px solid var(--panel-border);
  border-radius: var(--radius-img);
  transition: box-shadow var(--dur-state) var(--ease-out-quart),
              border-color var(--dur-state) var(--ease-out-quart);
}

.cs-next-card:hover { box-shadow: 6px 6px 0 var(--panel-border); }

.cs-next-meta {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.72rem;
  color: var(--panel-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cs-next-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
  color: var(--panel-text);
}

.cs-next-cta {
  margin-top: auto;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent-purple-on-dark);
}

.cs-next-cta::after {
  content: ' \2192';
  display: inline-block;
  transition: transform var(--dur-feedback) var(--ease-out-quart);
}

.cs-next-card:hover .cs-next-cta::after { transform: translateX(3px); }

/* ---------- Design values panel ---------- */

.values-section {
  margin-top: var(--space-2xl);
}

.values-panel {
  background: var(--panel-bg);
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}

.values-inner {
  padding-top: 0;
  padding-bottom: 0;
}

.values-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.15;
  color: var(--panel-text);
  margin: 0;
}

.values-lede {
  font-family: var(--font-body);
  color: var(--panel-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 54ch;
  margin: var(--space-sm) 0 var(--space-xl);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 780px) {
  .values-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

.value-pillar:nth-child(2) { transition-delay: 90ms; }
.value-pillar:nth-child(3) { transition-delay: 180ms; }

.value-icon {
  width: 52px;
  height: 52px;
  color: var(--panel-text);
  margin-bottom: var(--space-md);
}

.value-pillar h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 var(--space-sm);
}

/* One brand color per pillar — titles + icons both tint, all three
   verified >4.5:1 on the panel's near-black background. */
.value-pillar:nth-child(1) h3,
.value-pillar:nth-child(1) .value-icon { color: var(--accent-purple-on-dark); }
.value-pillar:nth-child(2) h3,
.value-pillar:nth-child(2) .value-icon { color: var(--accent-teal); }
.value-pillar:nth-child(3) h3,
.value-pillar:nth-child(3) .value-icon { color: var(--accent-yellow); }

.value-pillar ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.value-pillar li {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--panel-text-secondary);
  position: relative;
  padding-left: 1.1rem;
}

.value-pillar li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  border: 1px solid var(--panel-text-secondary);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .bio,
  .hero > div > .cs-body {
    opacity: 1;
    animation: none;
  }
  .reveal, .reveal-scale, .case-row {
    opacity: 1;
    transform: none;
  }
}