:root {
  --ink: #0F1117;
  --ink-light: #4B5262;
  --ink-faint: #8B93A5;
  --rule: #E4E7EE;
  --page: #FAFBFD;
  --white: #FFFFFF;
  --accent-violet: #7C3AED;
  --accent-cyan: #06B6D4;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--page);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
}

/* Visibility when JS unlocks (avoids edge cases where [hidden] + full reload fight the UI) */
#portfolioGate.gate-dismissed {
  display: none !important;
  visibility: hidden;
  pointer-events: none;
}
#portfolioMain.main-revealed {
  display: block !important;
}

/* —— Gate (password) —— */
.portfolio-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  background: linear-gradient(135deg, #0F1117 0%, #1a1035 50%, #2d1a5e 100%);
  color: #fff;
}
.portfolio-gate-card {
  width: 100%;
  max-width: 420px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  padding: 40px 36px;
  backdrop-filter: blur(20px);
}
.portfolio-gate-card h1 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.65rem;
  font-weight: 400;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.portfolio-gate-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 24px;
  line-height: 1.65;
}
.portfolio-gate-card input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(0,0,0,0.25);
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
}
.portfolio-gate-card input::placeholder { color: rgba(255,255,255,0.35); }
.portfolio-gate-card button[type="submit"],
.portfolio-gate-card button[type="button"] {
  width: 100%;
  padding: 14px;
  border-radius: 10px;
  border: none;
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.12);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}
.portfolio-gate-card button[type="submit"]:hover,
.portfolio-gate-card button[type="button"]:hover { background: rgba(255,255,255,0.2); }
.portfolio-gate-error {
  color: #FCA5A5;
  font-size: 0.85rem;
  margin-top: 12px;
  display: none;
}
.portfolio-gate-error.show { display: block; }
.portfolio-gate-card .back {
  display: inline-block;
  margin-top: 24px;
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
}
.portfolio-gate-card .back:hover { color: #fff; }

/* —— Nav —— */
.work-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 56px;
  background: rgba(15,17,23,0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.work-nav a {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  text-decoration: none;
}
.work-nav a:hover { color: rgba(255,255,255,0.95); }
.work-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}
.work-nav-brand:hover { color: #fff; }
.work-nav-brand img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.12);
}

/* —— Work index —— */
.work-main { padding-bottom: 64px; }
.work-hero {
  padding: 56px 48px 40px;
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}
.work-hero h1 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 12px;
}
.work-hero p {
  color: var(--ink-light);
  font-size: 0.95rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}
.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding: 24px 48px 48px;
  max-width: 1120px;
  margin: 0 auto;
}
.work-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s, box-shadow 0.25s;
}
.work-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}
.work-card-visual {
  aspect-ratio: 16 / 10;
  background: var(--page);
  overflow: hidden;
}
.work-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.work-card-body { padding: 22px 22px 24px; }
.work-card-type {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin-bottom: 8px;
}
.work-card-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.35rem;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.work-card-impact {
  font-size: 0.88rem;
  color: var(--ink-light);
  line-height: 1.6;
  margin-bottom: 14px;
}
.work-card-meta {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.work-empty {
  text-align: center;
  padding: 48px;
  color: var(--ink-faint);
}

/* —— Case study —— */
.cs-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 48px 80px;
  align-items: start;
}
.cs-toc {
  position: sticky;
  top: 72px;
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cs-toc a {
  display: block;
  color: var(--ink-faint);
  text-decoration: none;
  padding: 6px 0;
  border-left: 2px solid var(--rule);
  padding-left: 12px;
  margin-left: 2px;
}
.cs-toc a:hover, .cs-toc a:focus { color: var(--accent-violet); border-left-color: var(--accent-violet); }
.cs-article { min-width: 0; }
.cs-lede {
  margin-bottom: 36px;
}
.cs-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 12px;
}
.cs-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2.15rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.cs-hook {
  font-size: 1.05rem;
  color: var(--ink-light);
  line-height: 1.65;
  margin-bottom: 24px;
}
.cs-key-visual {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--rule);
  margin-bottom: 28px;
  background: var(--white);
}
.cs-key-visual img {
  width: 100%;
  display: block;
  vertical-align: middle;
}

.cs-video-wrap {
  margin-bottom: 36px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--rule);
  background: #0F1117;
}
.cs-video-wrap video {
  width: 100%;
  display: block;
  max-height: 70vh;
}
.cs-video-caption {
  font-size: 0.8rem;
  color: var(--ink-faint);
  padding: 12px 16px;
  background: var(--white);
  border-top: 1px solid var(--rule);
}

.cs-section {
  scroll-margin-top: 72px;
  margin-bottom: 40px;
}
.cs-section h2 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.35rem;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cs-section p {
  font-size: 0.92rem;
  color: var(--ink-light);
  line-height: 1.75;
  margin-bottom: 12px;
}
.cs-section p:last-child { margin-bottom: 0; }

.cs-impact-sub {
  margin-top: 20px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 12px;
}
.cs-impact-sub h3 {
  font-size: 0.72rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.cs-impact-sub p {
  margin-bottom: 0;
  font-size: 0.88rem;
}

.cs-block-quote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 3px solid var(--accent-cyan);
  background: var(--white);
  border-radius: 0 12px 12px 0;
  font-size: 1rem;
  color: var(--ink-light);
  font-style: italic;
}
.cs-block-quote cite {
  display: block;
  margin-top: 12px;
  font-style: normal;
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}

.cs-figure {
  margin: 28px 0;
}
.cs-figure img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--rule);
}
.cs-figure figcaption {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: 10px;
}

.cs-notfound, .cs-loading {
  max-width: 560px;
  margin: 80px auto;
  text-align: center;
  padding: 24px;
}
.cs-notfound h1, .cs-loading h1 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.work-footer {
  padding: 24px;
  text-align: center;
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--ink-faint);
  border-top: 1px solid var(--rule);
  background: var(--white);
}

@media (max-width: 900px) {
  .cs-layout {
    grid-template-columns: 1fr;
    padding: 24px 20px 64px;
  }
  .cs-toc {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 8px;
  }
  .cs-toc a {
    border-left: none;
    padding-left: 0;
    border-bottom: 2px solid transparent;
  }
  .cs-toc a:hover, .cs-toc a:focus {
    border-left-color: transparent;
    border-bottom-color: var(--accent-violet);
  }
  .work-grid { padding: 20px; }
  .work-hero { padding: 40px 20px 28px; }
  .work-hero h1 { font-size: 1.85rem; }
  .work-nav { padding: 0 20px; }
}