:root {
  --bg: #0b0c10;
  --card: #111218;
  --text: #e6e6e6;
  --muted: #a0a3ad;
  --brand: #67e8f9;
  --brand-strong: #22d3ee;
  --border: #1a1c24;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 70% -10%, rgba(34,211,238,0.08), transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(140%) blur(8px);
  background: rgba(11,12,16,0.6);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.2px; }
.brand-mark { font-size: 22px; }
.brand-name { font-size: 16px; }

.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); color: var(--text); padding: 6px 10px; border-radius: 8px; }
.site-nav { display: flex; gap: 20px; align-items: center; }
.site-nav a { color: var(--muted); font-weight: 600; }
.site-nav a:hover { color: var(--text); }

.hero { padding: 96px 0 48px; border-bottom: 1px solid var(--border); }
.hero-inner { text-align: center; }
.hero h1 { font-size: clamp(32px, 4.5vw, 56px); line-height: 1.1; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { margin: 0 auto 24px; color: var(--muted); max-width: 700px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Header slider */
.header-slider { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.header-slider .container { position: relative; display: flex; align-items: center; gap: 8px; padding: 10px 0; }
.slider-viewport { overflow: hidden; flex: 1; }
.slider-track { display: flex; gap: 10px; scroll-behavior: smooth; overflow-x: auto; scrollbar-width: none; }
.slider-track::-webkit-scrollbar { display: none; }
.slider-item { display: inline-flex; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 999px; background: #0f1117; white-space: nowrap; cursor: pointer; }
.slider-item img { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; background: #0b0c10; }
.slider-item span { color: var(--muted); font-weight: 600; font-size: 14px; }
.slider-item:focus { outline: 2px solid var(--brand); outline-offset: 2px; }
.slider-btn { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border); background: #0f1117; color: var(--text); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.slider-btn:hover { border-color: #262a36; }

.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 16px; border-radius: 10px; border: 1px solid var(--border);
  background: #13151c; color: var(--text); font-weight: 700; letter-spacing: 0.2px;
  transition: transform .05s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-1px); border-color: #262a36; }
.button.primary { background: linear-gradient(180deg, var(--brand), var(--brand-strong)); color: #041316; border: none; }
.button.subtle { background: #0f1117; color: var(--muted); }

.section { padding: 64px 0; border-bottom: 1px solid var(--border); }
.section h2 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.01em; }
.section-sub { color: var(--muted); margin: 0 0 20px; }

.pill-list { display: flex; gap: 8px; flex-wrap: wrap; padding: 0; margin: 16px 0 0; list-style: none; }
.pill-list li { padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); background: #0f1117; }

.grid { display: grid; gap: 16px; }
.portfolio-grid { grid-template-columns: repeat(3, 1fr); }

.card { list-style: none; background: var(--card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); cursor: pointer; }
.card figure { margin: 0; display: grid; grid-template-rows: auto 1fr; height: 100%; }
.card img { aspect-ratio: 16 / 9; object-fit: cover; background: #0f1117; }
.card figcaption { padding: 14px; border-top: 1px solid var(--border); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.card:focus { outline: 2px solid var(--brand); outline-offset: 2px; }
.card:hover { transform: translateY(-2px); transition: transform .08s ease; }

.contact-list { display: flex; gap: 12px; flex-wrap: wrap; }

.site-footer { padding: 24px 0; color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.footer-nav { display: flex; gap: 16px; }

@media (max-width: 900px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .header-inner { height: 56px; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; right: 16px; top: 56px; background: #0f1117; border: 1px solid var(--border); border-radius: 12px; padding: 10px; flex-direction: column; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .portfolio-grid { grid-template-columns: 1fr; }
}