/* ---------- Tokens ---------- */
:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #0284c7;
  --accent-contrast: #ffffff;
  --ok: #16a34a;
  --warn: #d97706;
  --info: #7c3aed;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(15 23 42 / 0.04), 0 4px 16px rgb(15 23 42 / 0.06);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  --max: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0b1120;
    --surface: #111a2e;
    --surface-2: #17223a;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #1e2b45;
    --accent: #38bdf8;
    --accent-contrast: #0b1120;
    --ok: #4ade80;
    --warn: #fbbf24;
    --info: #a78bfa;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
    color-scheme: dark;
  }
}

:root[data-theme='dark'] {
  --bg: #0b1120;
  --surface: #111a2e;
  --surface-2: #17223a;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #1e2b45;
  --accent: #38bdf8;
  --accent-contrast: #0b1120;
  --ok: #4ade80;
  --warn: #fbbf24;
  --info: #a78bfa;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 8px 24px rgb(0 0 0 / 0.25);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 3vw, 1.75rem); font-weight: 600; }
h3 { font-size: 1.1rem; font-weight: 600; }
p { margin: 0 0 1em; }
.mono { font-family: var(--mono); font-size: 0.85em; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.eyebrow { color: var(--accent); margin-bottom: 0.75rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 62ch; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .container { padding: 0 32px; } }
.section { padding: 56px 0 24px; }
.section .section { padding-top: 48px; }
.narrow { max-width: 820px; }
.skip-link { position: absolute; left: -999px; }
.skip-link:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 10; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Header / footer ---------- */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px;
  background: var(--text); color: var(--bg); font: 700 13px var(--mono);
}
.brand-name { font-family: var(--mono); font-size: 0.95rem; }
.site-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: var(--muted); padding: 6px 10px; border-radius: 8px; font-size: 0.95rem;
}
.site-nav a:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.site-nav a[aria-current='page'] { color: var(--text); background: var(--surface-2); }
.theme-toggle {
  display: grid; place-items: center; width: 36px; height: 36px; margin-left: 4px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); cursor: pointer;
}
.theme-toggle:hover { color: var(--text); }
.site-footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.footer-links { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 10px; font: 500 0.95rem var(--font);
  border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer;
}
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn--primary { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
.btn--primary:hover { filter: brightness(1.08); border-color: var(--accent); }
.btn--block { width: 100%; }
.actions, .contact-links { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* ---------- Hero ---------- */
.hero { display: grid; gap: 40px; padding-top: 72px; padding-bottom: 40px; align-items: center; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.3fr 1fr; } }
.terminal {
  background: #0b1120; color: #cbd5e1; border-radius: var(--radius); overflow: hidden;
  border: 1px solid #1e2b45; box-shadow: var(--shadow);
}
.terminal-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: #111a2e; border-bottom: 1px solid #1e2b45; }
.terminal-bar span { width: 10px; height: 10px; border-radius: 50%; background: #334155; }
.terminal-bar p { margin: 0 0 0 8px; color: #64748b; }
.terminal-body { margin: 0; padding: 18px 20px; font-size: 0.85rem; }
.terminal-body div { display: grid; grid-template-columns: 90px 1fr; gap: 12px; padding: 3px 0; }
.terminal-body dt { color: #38bdf8; }
.terminal-body dt::after { content: ':'; }
.terminal-body dd { margin: 0; }
.terminal-body .ok { color: #4ade80; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.stats div { background: var(--surface); padding: 20px 24px; display: flex; flex-direction: column; }
.stats strong { font: 600 1.75rem var(--mono); }
.stats span { color: var(--muted); font-size: 0.9rem; }

/* ---------- Sections & cards ---------- */
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 20px; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.card {
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; color: inherit; transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.card:hover { text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.card-cover { aspect-ratio: 16 / 9; background: var(--surface-2); overflow: hidden; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; }
.card-cover--generated {
  display: grid; place-items: center; color: var(--accent); font-size: 2rem; font-weight: 600;
  background:
    linear-gradient(var(--border) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--border) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--surface-2);
}
.card-cover--generated span { font-size: 1.75rem; background: var(--surface); padding: 6px 14px; border-radius: 8px; border: 1px solid var(--border); }
.card-cover[data-category='academic'] span { color: var(--info); }
.card-cover[data-category='personal'] span { color: var(--ok); }
.card-cover[data-category='art'] span { color: var(--warn); }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.card-body p { color: var(--muted); font-size: 0.95rem; }
.card-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }

.pill { font: 500 0.72rem var(--mono); padding: 2px 8px; border-radius: 999px; border: 1px solid currentColor; text-transform: uppercase; letter-spacing: 0.04em; }
.pill--completed { color: var(--ok); }
.pill--in-progress { color: var(--warn); }
.pill--planned { color: var(--info); }
.pill--draft { color: var(--muted); border-style: dashed; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: auto 0 0; padding: 0; }
.tags li { font: 0.75rem var(--mono); padding: 3px 8px; border-radius: 6px; background: var(--surface-2); color: var(--muted); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 24px; }
.filters a { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); font-size: 0.9rem; background: var(--surface); }
.filters a:hover { color: var(--text); text-decoration: none; }
.filters a[aria-current='true'] { background: var(--text); color: var(--bg); border-color: var(--text); }

.focus-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); margin-top: 24px; }
.focus { padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.focus p { color: var(--muted); margin: 0; }

.cta {
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 32px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border);
}
.cta p { color: var(--muted); margin: 0; }
.empty { padding: 40px; border: 1px dashed var(--border); border-radius: var(--radius); text-align: center; }

/* ---------- Project / product detail ---------- */
.back { display: inline-block; margin-bottom: 24px; }
.project-header { margin-bottom: 32px; }
.project-layout { display: grid; gap: 40px; }
@media (min-width: 900px) { .project-layout { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; } }
.project-facts {
  position: sticky; top: 88px; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
}
.project-facts dl { margin: 0; }
.project-facts dl > div + div { margin-top: 18px; }
.project-facts dt { font: 0.75rem var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.project-facts dd { margin: 0; }
.project-facts .tags { margin: 0; }
.buy-box .price { font: 600 1.75rem var(--mono); margin-bottom: 14px; }
.buy-box .small { margin-top: 12px; }
.buy-box dl { margin-top: 20px; }
.price { font-family: var(--mono); font-weight: 600; margin: 12px 0 0; }
.project-cover { border-radius: var(--radius); margin-bottom: 28px; }
.link-list, .plain { list-style: none; margin: 0; padding: 0; }
.plain li + li, .link-list li + li { margin-top: 6px; }

.prose { max-width: 70ch; }
.prose h2 { font-size: 1.3rem; margin-top: 2em; }
.prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: 0.4em; }
.prose li::marker { color: var(--accent); }
.prose code { font: 0.88em var(--mono); background: var(--surface-2); padding: 2px 6px; border-radius: 5px; }

/* ---------- CV ---------- */
.cv-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; padding-bottom: 28px; border-bottom: 1px solid var(--border); margin-bottom: 32px; }
.cv-contact { margin: 0; }
.cv-layout { display: grid; gap: 40px; }
@media (min-width: 900px) { .cv-layout { grid-template-columns: minmax(0, 1fr) 340px; } }
.cv-block { margin-bottom: 36px; }
.cv-block > h2 { font: 600 0.8rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 16px; }
.cv-entry { padding-left: 18px; border-left: 2px solid var(--border); margin-bottom: 24px; }
.cv-entry h3 { margin-bottom: 2px; }
.cv-entry header p { margin-bottom: 8px; }
.cv-entry ul { padding-left: 1.1em; margin: 0; }
.cv-entry li { margin-bottom: 0.35em; }
.cv-related { font-size: 0.9rem; margin: 10px 0 0; }
.skill-group { font-size: 0.9rem; margin: 16px 0 8px; }
.skill-group:first-of-type { margin-top: 0; }
.cert-list { list-style: none; padding: 0; margin: 0; }
.cert-list li { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.95rem; }
.cert-topics { display: block; font-size: 0.82rem; }
.recommendation { margin: 0 0 20px; padding: 18px 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.recommendation p { font-style: italic; }
.recommendation footer { font-size: 0.9rem; color: var(--muted); }

@media print {
  .site-header, .site-footer, .no-print, .skip-link { display: none !important; }
  :root, :root[data-theme] { color-scheme: light; --bg: #fff; --surface: #fff; --text: #000; --muted: #444; --border: #ccc; --accent: #0369a1; }
  body { font-size: 11pt; }
  .section { padding: 0; }
  .cv-layout { grid-template-columns: 1fr 240px; gap: 28px; }
  .cv-entry, .recommendation { break-inside: avoid; }
  a { color: inherit; }
}