/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  --bg: #0a0a0b;
  --bg-secondary: #111113;
  --bg-tertiary: #18181b;
  --bg-card: #141416;
  --border: #27272a;
  --border-subtle: #1c1c1f;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-muted: rgba(99, 102, 241, 0.12);
  --accent-border: rgba(99, 102, 241, 0.3);
  --gradient-accent: linear-gradient(135deg, #818cf8 0%, #c084fc 50%, #f472b6 100%);
  --gradient-accent-short: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
  --success: #22c55e;
  --warning: #f59e0b;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5), 0 2px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6), 0 8px 24px rgba(0,0,0,0.4);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1120px;
  --content-width: 720px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-logo {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a:not(.nav-cta) {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-links a:not(.nav-cta):hover {
  color: var(--text-primary);
}

.nav-cta {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--accent);
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav-cta:hover {
  background: var(--accent-hover);
  color: var(--text-primary);
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: var(--transition);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 96px 0;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ============================================
   HOMEPAGE — HERO
   ============================================ */
.hero {
  padding: 160px 0 96px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-muted);
  border: 1px solid var(--accent-border);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.07;
  margin-bottom: 24px;
  max-width: 800px;
}

.hero-title .highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1875rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.65;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  padding: 11px 22px;
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
  transform: translateY(-1px);
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--transition);
}

.btn-primary:hover .btn-arrow,
.btn-secondary:hover .btn-arrow {
  transform: translateX(3px);
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 48px;
}

.tag {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

/* ============================================
   HOMEPAGE — FEATURED WORK
   ============================================ */
.section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 40px;
}

/* Card stack — JS-rendered cards container */
.card-stack {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.case-study-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
}

.case-study-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(99, 102, 241, 0.15);
}

.case-study-content {
  padding: 52px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

/* Shared badge style for cards and case study headers */
.card-badge,
.cs-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-muted);
  border: 1px solid var(--accent-border);
  padding: 3px 10px;
  border-radius: 100px;
}

.cs-badge {
  padding: 4px 12px;
}

.card-company {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.case-study-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-bottom: 16px;
}

.case-study-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 32px;
}

.card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}

.chip {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 100px;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition), color var(--transition);
}

.case-study-card:hover .card-cta {
  gap: 12px;
  color: var(--accent-hover);
}

.case-study-visual {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
  min-height: 400px;
}

/* Gradient overlay on visual */
.case-study-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.06) 0%, rgba(192,132,252,0.04) 100%);
  z-index: 1;
}

/* White background for light-background images (e.g. Terra) */
.img-on-light {
  background: #fff;
}

/* ============================================
   HOMEPAGE — EXPERIENCE
   ============================================ */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.experience-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.experience-item:first-child {
  border-top: 1px solid var(--border-subtle);
}

.exp-left {
  padding-top: 2px;
}

.exp-company {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.exp-tenure {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

.exp-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.exp-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.exp-tag {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

/* Early-career items: same grid, reduced visual weight */
.experience-item.exp-early {
  padding: 24px 0;
  opacity: 0.7;
}

.experience-item.exp-early .exp-role {
  font-size: 0.9rem;
  font-weight: 500;
}

.experience-item.exp-early .exp-desc {
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* ============================================
   HOMEPAGE — ABOUT
   ============================================ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 64px;
  align-items: start;
}

.about-p {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 640px;
}

.about-p:last-child {
  margin-bottom: 0;
}

.about-personal {
  color: var(--text-tertiary);
  font-size: 0.9375rem;
}

.about-sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.about-sidebar-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about-sidebar-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}

.about-sidebar-value {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
}

.about-portrait {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.about-sidebar-sub {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ============================================
   HOMEPAGE — CREDENTIALS
   ============================================ */
.credentials-list {
  display: flex;
  flex-direction: column;
}

.credential-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.credential-item:first-child {
  border-top: 1px solid var(--border-subtle);
}

.credential-org {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.credential-year {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.credential-title {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-top: 2px;
}

/* ============================================
   HOMEPAGE — CONTACT
   ============================================ */
.contact-section {
  padding: 80px 0;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.contact-title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}

.contact-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.contact-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.contact-link:hover {
  color: var(--text-primary);
  border-color: var(--text-tertiary);
  background: var(--bg-tertiary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
}

.footer-text {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ============================================
   CASE STUDY PAGE — HERO
   ============================================ */
.cs-hero {
  padding: 140px 0 80px;
  position: relative;
}

.cs-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-border) 50%, transparent 100%);
}

.cs-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-bottom: 36px;
}

.cs-breadcrumb a {
  color: var(--text-tertiary);
  transition: color var(--transition);
}

.cs-breadcrumb a:hover {
  color: var(--accent);
}

.cs-breadcrumb-sep {
  color: var(--border);
}

.cs-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.cs-company {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  padding: 4px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
}

.cs-year {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.cs-title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
  max-width: 800px;
}

.cs-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 48px;
}

.cs-stat-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}

.cs-stat {
  flex: 1;
  padding: 24px 28px;
  border-right: 1px solid var(--border);
}

.cs-stat:last-child {
  border-right: none;
}

.cs-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.cs-stat-label {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* ============================================
   CASE STUDY — HERO IMAGE BLOCK
   ============================================ */
.cs-hero-image {
  margin: 64px 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 440px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cs-hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.05) 0%, rgba(192,132,252,0.03) 100%);
}

.cs-hero-photo {
  min-height: 0;
  display: block;
  background: var(--bg-secondary);
}

.cs-hero-photo::before {
  display: none;
}

.cs-hero-photo img,
.cs-hero-photo video {
  display: block;
  width: 100%;
  height: auto;
}

.cs-image-figure {
  margin: 36px 0;
}

.cs-figure-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.cs-figure-badge-accent {
  color: var(--accent);
  background: var(--accent-muted);
  border-color: var(--accent-border);
}

.cs-image-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.cs-image-figure a:hover img {
  border-color: var(--accent-border);
}

.card-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top right;
}

.placeholder-caption {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 16px;
  font-style: italic;
}

/* ============================================
   CASE STUDY — BODY CONTENT
   ============================================ */
.cs-body {
  padding-bottom: 120px;
}

.cs-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
}

.cs-toc {
  position: sticky;
  top: 88px;
}

.cs-toc-title {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.cs-toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cs-toc-list a {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  display: block;
  line-height: 1.4;
}

.cs-toc-list a:hover,
.cs-toc-list a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-muted);
}

.cs-content {
  min-width: 0;
}

/* Section blocks */
.cs-section {
  margin-bottom: 80px;
  scroll-margin-top: 88px;
}

.cs-section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.cs-section-title {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 20px;
}

.cs-section-title-lg {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-bottom: 20px;
}

.cs-section-subtitle {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 16px;
}

.cs-body-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.cs-body-text:last-child {
  margin-bottom: 0;
}

.cs-body-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Callout */
.callout {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 32px 0;
}

.callout-accent {
  border-left-color: var(--accent);
  background: var(--accent-muted);
}

.callout p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.callout p strong {
  color: var(--text-primary);
}

/* Pull quote */
.pull-quote {
  margin: 48px 0;
  padding: 0 32px;
  border-left: 3px solid var(--accent);
}

.pull-quote p {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
  letter-spacing: -0.01em;
  font-style: italic;
}

/* Workflow cards */
.workflow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 32px 0;
}

.workflow-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition);
}

.workflow-card:hover {
  border-color: var(--accent-border);
}

.workflow-card-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.workflow-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--accent-muted);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.workflow-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.workflow-card-subtitle {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.workflow-card-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Two-up image grid */
.cs-image-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 36px 0;
}

/* Outcome metrics */
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 32px 0;
}

.outcome-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
}

.outcome-value {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  background: var(--gradient-accent-short);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.outcome-label {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* Role responsibility list */
.role-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px 0;
}

.role-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.role-item::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 8px;
}

/* Numbered list */
.numbered-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0;
  counter-reset: item;
}

.numbered-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.numbered-item-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-muted);
  border: 1px solid var(--accent-border);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

/* Next steps / reflection */
.reflection-box {
  background: linear-gradient(135deg, rgba(99,102,241,0.07) 0%, rgba(192,132,252,0.05) 100%);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin: 32px 0;
}

.reflection-box-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

/* ============================================
   PROGRESS BAR
   ============================================ */
.progress-bar {
  position: fixed;
  top: 60px;
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 99;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.6);
}

/* ============================================
   FADE-IN ANIMATION
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   AUDIT TABLE
   ============================================ */
.audit-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 36px 0;
}

.audit-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.audit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.audit-table th {
  padding: 10px 16px;
  text-align: left;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  white-space: nowrap;
}

.audit-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.audit-table tr:last-child td {
  border-bottom: none;
}

.audit-table tr:hover td {
  background: rgba(255, 255, 255, 0.015);
}

.audit-component {
  color: var(--text-primary) !important;
  font-weight: 500;
}

.audit-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 500;
  white-space: nowrap;
}

.b-ok   { background: rgba(34, 197, 94, 0.1);   color: #22c55e; }
.b-warn { background: rgba(245, 158, 11, 0.1);   color: #f59e0b; }
.b-fail { background: rgba(239, 68, 68, 0.1);    color: #ef4444; }
.b-miss { background: rgba(255, 255, 255, 0.05); color: var(--text-tertiary); }

/* ============================================
   TOKEN DIAGRAM
   ============================================ */
.token-diagram {
  margin: 28px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
  overflow-x: auto;
}

.token-col {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-width: 0;
}

.token-col-hd {
  padding: 10px 14px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.token-row {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  white-space: nowrap;
}

.token-row:last-child {
  border-bottom: none;
}

.t-prim { color: #f59e0b; }
.t-sem  { color: #818cf8; }
.t-teal { color: #2dd4bf; }
.t-comp { color: var(--text-secondary); }

.token-arrow {
  padding: 0 16px;
  color: var(--text-tertiary);
  font-size: 1.125rem;
  align-self: center;
  flex-shrink: 0;
}

.inline-code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.8125rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  color: #818cf8;
}

/* ============================================
   BEFORE / AFTER COMPARISON
   ============================================ */
.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}

.ba-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.ba-hd {
  padding: 10px 18px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ba-before .ba-hd { color: #ef4444; }
.ba-after  .ba-hd { color: #22c55e; }

.ba-body {
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ba-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ba-note {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.5;
  margin: 4px 0 0;
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

/* Demo buttons for before/after */
.btn-demo {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  min-width: 96px;
  text-align: center;
}

.btn-demo-b1 { background: #3b82f6; color: #fff; border-radius: 3px; }
.btn-demo-b2 { background: #2563eb; color: #fff; border-radius: 10px; font-weight: 600; }
.btn-demo-b3 { background: #1d4ed8; color: #fff; border-radius: 0; font-weight: 400; }
.btn-demo-a1 { background: var(--accent); color: #fff; border-radius: 8px; }
.btn-demo-a2 { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); border-radius: 8px; box-shadow: 0 0 0 3px var(--accent-muted); }

.a11y-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  white-space: nowrap;
}

.a11y-ok { background: rgba(34, 197, 94, 0.1); color: #22c55e; }
.a11y-no { background: rgba(239, 68, 68, 0.1);  color: #ef4444; }

/* ============================================
   DATA VIZ COMPARISON
   ============================================ */
.dv-compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.dv-compare-hd {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dv-fail { color: #ef4444; }
.dv-pass { color: #22c55e; }

.dv-compare-body {
  padding: 16px 14px;
}

/* ============================================
   REFLECTION LIST (two-column key / value)
   ============================================ */
.reflection-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reflection-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: start;
}

.reflection-row:first-child {
  border-top: 1px solid var(--border-subtle);
}

.reflection-key {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  padding-top: 2px;
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .case-study-card {
    grid-template-columns: 1fr;
  }

  .case-study-visual {
    min-height: 300px;
    order: -1;
  }

  .cs-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cs-toc {
    display: none;
  }

  .outcome-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 120px 0 64px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9375rem;
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .case-study-content {
    padding: 36px 28px;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cs-stat-row {
    flex-direction: column;
  }

  .cs-stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .cs-stat:last-child {
    border-bottom: none;
  }

  .cs-image-grid-2 {
    grid-template-columns: 1fr;
  }

  .outcome-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 24px 20px;
  }
}