/* Base styles */
:root {
  --bg: #0b0d12;
  --text: #e6e9ef;
  --muted: #aab2c5;
  --accent: #7c5cff;
  --card: #12141b;
  --border: #1f2430;
}

/* Light theme overrides */
:root.light {
  --bg: #ffffff;
  --text: #0b0d12;
  --muted: #4a4f5c;
  --accent: #6b46ff;
  --card: #f6f7fb;
  --border: #e6e8ef;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { width: min(1100px, 90%); margin: 0 auto; }

/* Header */
.site-header { position: sticky; top: 0; backdrop-filter: saturate(180%) blur(4px); background: color-mix(in oklab, var(--bg) 90%, transparent); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
.logo { font-weight: 700; text-decoration: none; color: var(--text); }
.nav { display: flex; gap: 14px; align-items: center; }
.nav a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 8px; }
.nav a:hover { background: var(--card); }
.nav button { border: 1px solid var(--border); background: var(--card); color: var(--text); padding: 6px 10px; border-radius: 8px; cursor: pointer; }

/* Hero */
.hero { padding: 64px 0 32px; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, color-mix(in oklab, var(--bg) 92%, transparent), var(--bg)); }
.hero-inner { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; }
.hero h1 { font-size: clamp(28px, 5vw, 48px); margin: 0 0 10px; }
.hero p { color: var(--muted); margin: 0 0 18px; }
.accent { color: var(--accent); }
.btn { display: inline-block; border: 1px solid var(--border); background: var(--card); color: var(--text); padding: 10px 14px; border-radius: 10px; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn:hover { filter: brightness(1.08); }
.hero-actions { display: flex; gap: 10px; }

/* Sections */
.section { padding: 48px 0; border-bottom: 1px solid var(--border); }
.section h2 { margin: 0 0 12px; font-size: 28px; }

/* Project cards */
.grid { display: grid; gap: 20px; }
.projects-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { border: 1px solid var(--border); background: var(--card); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.card img { width: 100%; height: 150px; object-fit: cover; background: #222; }
.card-body { padding: 14px; }
.card-body h3 { margin: 2px 0 8px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 12px; }
.tags span { padding: 4px 8px; border-radius: 999px; border: 1px solid var(--border); background: color-mix(in oklab, var(--card) 90%, transparent); font-size: 12px; color: var(--muted); }
.card-actions { display: flex; gap: 8px; }

/* Skills */
.skills-list { display: grid; gap: 6px; grid-template-columns: 1fr; }
.skills-list li { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }

/* Footer */
.site-footer { padding: 20px 0; }
.site-footer p { color: var(--muted); }

/* Responsive tweaks */
@media (min-width: 900px) {
  .hero-inner { grid-template-columns: 1.2fr 0.8fr; }
}