/* =========================================================
   SK Portfolio — design system
   Palette carried over from sametkaya.design v1
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --bg: #070b16;
  --bg-soft: #0e1324;
  --bg-glow-a: #303765;
  --bg-glow-b: #070b16;
  --fg: #f5f7ff;
  --fg-muted: #ccd0f3;
  --fg-soft: #9da3d0;
  --border-subtle: rgba(157, 163, 208, 0.28);
  --accent: #ff8a4a;
  --accent-2: #6d5dfc;
  --accent-3: #ffcc4d;
  --accent-soft: rgba(255, 138, 74, 0.22);
  --glass: rgba(11, 16, 36, 0.82);
  --card: rgba(14, 19, 36, 0.6);
  --radius-md: 0.875rem;
  --radius-lg: 1.125rem;
  --radius-xl: 1.375rem;
  --shadow-soft: 0 1.5rem 3.5rem rgba(6, 9, 26, 0.8);
  --font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --focus-ring: 2px solid #fbbf24;
  --focus-ring-offset: 3px;

  --space-section: clamp(5rem, 12vw, 9rem);
  --container: 72rem;
  --container-prose: 44rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.7s;
}

[data-theme="light"] {
  --bg: #f4f5fb;
  --bg-soft: #e5e7f5;
  --bg-glow-a: #ffe3d0;
  --bg-glow-b: #f4f5fb;
  --fg: #0b1020;
  --fg-muted: #232846;
  --fg-soft: #6b7280;
  --border-subtle: rgba(148, 155, 192, 0.45);
  --accent: #ff6b2f;
  --accent-2: #5546e8;
  --accent-3: #d99a00;
  --accent-soft: rgba(255, 107, 47, 0.16);
  --glass: rgba(255, 255, 255, 0.85);
  --card: rgba(255, 255, 255, 0.72);
  --shadow-soft: 0 1.2rem 2.8rem rgba(17, 24, 39, 0.14);
  --focus-ring: 2px solid #2563eb;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: clip;
}

::selection { background: var(--accent); color: #070b16; }

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-radius: 4px;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #070b16;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 1rem; }

.container {
  width: min(var(--container), 100% - 3rem);
  margin-inline: auto;
}
.container-wide {
  width: min(84rem, 100% - 3rem);
  margin-inline: auto;
}
.container-prose {
  width: min(var(--container-prose), 100% - 3rem);
  margin-inline: auto;
}

/* Ambient glow */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(50rem 36rem at 12% -6%, var(--bg-glow-a), transparent 60%),
    radial-gradient(40rem 30rem at 100% 30%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent 65%),
    var(--bg-glow-b);
  transition: background 0.4s ease;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  transition: transform 0.35s var(--ease-out);
}
.site-header.is-hidden { transform: translateY(-110%); }

.site-nav {
  width: min(var(--container), 100% - 3rem);
  margin: 0.9rem auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.75rem 0.55rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--fg);
  font-weight: 700;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.65rem;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #070b16;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
}
.brand-name { font-size: 0.95rem; }

.nav-links { display: flex; gap: 0.25rem; }
.nav-links a {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.nav-links a:hover { color: var(--fg); background: var(--accent-soft); }

.nav-actions { display: flex; align-items: center; gap: 0.5rem; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--fg-muted);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: rotate(15deg); }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  padding: 0 0.55rem;
}
.nav-burger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--fg);
  transition: transform 0.25s var(--ease-out), opacity 0.25s ease;
}
.nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  will-change: transform;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #ff6b2f);
  color: #070b16;
  box-shadow: 0 0.5rem 1.5rem var(--accent-soft);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0.8rem 2rem var(--accent-soft); }
.btn-ghost {
  border-color: var(--border-subtle);
  color: var(--fg);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-small { padding: 0.5rem 1rem; font-size: 0.85rem; background: var(--accent-soft); color: var(--fg); }
.btn-small:hover { background: var(--accent); color: #070b16; }

/* ---------- Hero ---------- */
.hero {
  min-height: calc(100svh - 6rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: clamp(4rem, 10vw, 7rem) clamp(3rem, 6vw, 5rem);
}

.hero-eyebrow {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-headline {
  margin: 0;
  font-size: clamp(2.75rem, 8.5vw, 6.5rem);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -0.035em;
}
.line.grad,
.grad-text {
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-3) 50%, var(--accent-2) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.line.grad {
  animation:
    line-up 0.9s var(--ease-out) forwards,
    grad-shift 8s ease-in-out infinite alternate;
}
@keyframes grad-shift {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

.line-mask { display: block; overflow: hidden; padding-block: 0.06em; }
.line {
  display: block;
  transform: translateY(110%);
  animation: line-up 0.9s var(--ease-out) forwards;
  animation-delay: calc(0.12s + var(--i, 0) * 0.12s);
}
@keyframes line-up { to { transform: translateY(0); } }

.hero-lower { max-width: 38rem; }
.hero-intro {
  margin: 2rem 0 0;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--fg-muted);
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 2rem; }
.hero-availability {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.25rem;
  font-size: 0.9rem;
  color: var(--fg-soft);
}
.pulse-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--border-subtle);
  padding-block: 0.9rem;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  gap: 2.25rem;
  width: max-content;
  animation: marquee 28s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-soft);
  white-space: nowrap;
}
.marquee-track .dot { color: var(--accent); }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding-block: var(--space-section) 0; }
.section:last-of-type { padding-bottom: var(--space-section); }

.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-title {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

/* ---------- Work cards ---------- */
.work-list { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); }

.work-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: center;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background: var(--card);
  backdrop-filter: blur(8px);
  text-decoration: none;
  color: var(--fg);
  transition: transform 0.45s var(--ease-out), border-color 0.3s ease, box-shadow 0.45s var(--ease-out);
}
.work-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent-project, var(--accent)) 55%, transparent);
  box-shadow: 0 1.75rem 3.5rem color-mix(in srgb, var(--accent-project, var(--accent)) 14%, transparent), var(--shadow-soft);
}
.work-card:nth-child(even) { grid-template-columns: 1fr 1.1fr; }
.work-card:nth-child(even) .work-media { order: 2; }

.work-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 10.5;
  background: var(--bg-soft);
}

/* Coming-soon cards: not a link, calmer hover, badge on the media */
.work-card.is-soon { cursor: default; }
.work-card.is-soon:hover { transform: none; box-shadow: none; }
.work-card.is-soon:hover .work-media img { transform: none; }
.soon-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 1;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(7, 11, 22, 0.72);
  backdrop-filter: blur(6px);
  border: 1px solid color-mix(in srgb, var(--accent-project, var(--accent)) 55%, transparent);
  color: #f5f7ff;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.work-cta.is-soon-cta { color: var(--fg-soft); }
.work-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out);
}
.work-card:hover .work-media img { transform: scale(1.045); }

.work-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-project, var(--accent));
}
.work-title {
  margin: 0.6rem 0 0.65rem;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.work-tagline { color: var(--fg-soft); font-weight: 500; }
.work-desc { margin: 0 0 1.1rem; color: var(--fg-muted); font-size: 0.98rem; }

.meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
}
.meta-chips li {
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--fg-soft);
}

.work-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent-project, var(--accent));
}
.work-cta svg { transition: transform 0.3s var(--ease-out); }
.work-card:hover .work-cta svg { transform: translateX(5px); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}
.about-body { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--fg-muted); margin: 1.25rem 0 1.75rem; }

.tag-list { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0; padding: 0; list-style: none; }
.tag-list li {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--fg);
  font-size: 0.88rem;
  font-weight: 550;
}

.about-side { display: grid; gap: 1.25rem; }
.side-card {
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--card);
}
.side-title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.now-list { margin: 0; display: grid; gap: 0.8rem; }
.now-list div { display: grid; gap: 0.1rem; }
.now-list dt { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--fg-soft); }
.now-list dd { margin: 0; font-weight: 550; font-size: 0.95rem; }

.tool-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; list-style: none; }
.tool-list li {
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border-subtle);
  border-radius: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ---------- Approach ---------- */
.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.approach-card {
  position: relative;
  padding: 1.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--card);
  overflow: hidden;
  transition: transform 0.35s var(--ease-out), border-color 0.3s ease;
}
.approach-card::after {
  content: "";
  position: absolute;
  inset: auto -30% -40% auto;
  width: 12rem;
  height: 12rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.approach-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.approach-card:hover::after { opacity: 1; }
.approach-num { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent); }
.approach-card h3 { margin: 0.8rem 0 0.6rem; font-size: 1.2rem; letter-spacing: -0.01em; }
.approach-card p { margin: 0; color: var(--fg-muted); font-size: 0.95rem; }

/* ---------- Contact ---------- */
.contact-card {
  position: relative;
  padding: clamp(2.5rem, 6vw, 5rem);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(38rem 22rem at 85% -20%, var(--accent-soft), transparent 60%),
    var(--card);
  text-align: center;
  overflow: hidden;
}
.contact-heading {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.contact-body { max-width: 34rem; margin: 0 auto 2.25rem; color: var(--fg-muted); }
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s ease, transform 0.25s var(--ease-out);
  will-change: transform;
}
.contact-email:hover { border-color: var(--accent); }
.contact-email svg { transition: transform 0.3s var(--ease-out); }
.contact-email:hover svg { transform: translate(3px, -3px); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--space-section);
  border-top: 1px solid var(--border-subtle);
  padding-block: 2rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--fg-soft);
}
.footer-inner p { margin: 0; }
.footer-inner a { color: var(--fg-muted); text-decoration: none; }
.footer-inner a:hover { color: var(--accent); }

/* ---------- Case study ---------- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-3), var(--accent-2));
  transform-origin: left;
  transform: scaleX(0);
}

.case-hero { padding-block: clamp(3rem, 8vw, 6rem) 0; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  color: var(--fg-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 550;
  transition: color 0.2s ease;
}
.back-link:hover { color: var(--accent-project, var(--accent)); }
.back-link svg { transition: transform 0.25s var(--ease-out); }
.back-link:hover svg { transform: translateX(-4px); }

.case-title {
  margin: 0;
  font-size: clamp(2.75rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.02;
}
.case-tagline {
  margin: 1.25rem 0 0;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--fg-muted);
  max-width: 40rem;
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: start;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  margin: 2.75rem 0 0;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}
.case-meta div { display: grid; gap: 0.2rem; }
.case-meta dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.case-meta dd { margin: 0; font-weight: 600; font-size: 0.95rem; }
.live-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent-project, var(--accent));
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.live-link:hover { border-color: currentColor; }

.case-cover { margin-top: clamp(2.5rem, 5vw, 4rem); }
.case-cover img {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.case-body { padding-block: clamp(3rem, 6vw, 5rem) 0; }

/* Prose styles for markdown content */
.prose h2 {
  margin: 3rem 0 1rem;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.prose h2::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-bottom: 1.1rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-project, var(--accent)), transparent);
}
.prose h3 { margin: 2rem 0 0.75rem; font-size: 1.25rem; }
.prose p { margin: 0 0 1.25rem; color: var(--fg-muted); }
.prose strong { color: var(--fg); }
.prose a { color: var(--accent-project, var(--accent)); }
.prose ul, .prose ol { margin: 0 0 1.5rem; padding-left: 1.2rem; color: var(--fg-muted); }
.prose li { margin-bottom: 0.6rem; }
.prose li strong { color: var(--fg); }
.prose blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--accent-project, var(--accent));
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--card);
  color: var(--fg);
  font-size: 1.1rem;
}
.prose blockquote p { margin: 0; color: var(--fg); }
.prose img {
  width: calc(100% + clamp(0rem, 8vw, 10rem));
  max-width: none;
  margin: 2.5rem calc(clamp(0rem, 8vw, 10rem) / -2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-soft);
  padding: 0.15em 0.4em;
  border-radius: 0.35em;
}

/* Next project */
.case-next { padding-block: clamp(3rem, 6vw, 5rem) 0; }
.next-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(30rem 16rem at 90% -30%, color-mix(in srgb, var(--accent-project, var(--accent)) 18%, transparent), transparent 65%),
    var(--card);
  color: var(--fg);
  text-decoration: none;
  transition: transform 0.4s var(--ease-out), border-color 0.3s ease;
}
.next-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent-project, var(--accent)) 55%, transparent);
}
.next-label {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-project, var(--accent));
}
.next-title { margin: 0 0 0.3rem; font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; }
.next-tagline { margin: 0; color: var(--fg-muted); }
.next-card svg { flex-shrink: 0; color: var(--accent-project, var(--accent)); transition: transform 0.3s var(--ease-out); }
.next-card:hover svg { transform: translateX(6px); }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(1.75rem);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal.is-visible { opacity: 1; transform: none; }
/* If JS never runs, never hide content */
html.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 56rem) {
  .work-card,
  .work-card:nth-child(even) { grid-template-columns: 1fr; }
  .work-card:nth-child(even) .work-media { order: 0; }
  .about-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; }
  .case-meta { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 44rem) {
  .nav-links {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 0.75rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    background: var(--glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    transform: translateY(-0.5rem);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s var(--ease-out);
  }
  .site-nav { position: relative; }
  .nav-links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links a { padding: 0.7rem 1rem; }
  .nav-burger { display: flex; }
  .brand-name { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .line { transform: none; animation: none; }
  .reveal { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
}