/* ============================================================
   samtak.dev — shared styles (dark)
   Quiet engineering notebook, night edition. One accent.
   ============================================================ */
:root {
  --bg: #131519;
  --panel: #1b1e24;
  --line: #2a2e36;
  --ink: #e8eaee;
  --muted: #9aa3af;
  --accent: #7b96ff;
  --accent-soft: rgba(123, 150, 255, 0.08);
  --radius: 8px;
  --measure: 66ch;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }

/* ---------- Site nav ---------- */
nav.site {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px;
  padding: 26px 0 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
}
nav.site .brand { color: var(--ink); text-decoration: none; font-weight: 500; }
nav.site .brand:hover { color: var(--accent); }
nav.site .links { display: flex; gap: 22px; }
nav.site .links a { color: var(--muted); text-decoration: none; }
nav.site .links a:hover { color: var(--accent); text-decoration: underline; }
nav.site .links a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--accent); padding-bottom: 2px; }

/* ---------- Headers ---------- */
header.home { padding: 72px 0 56px; }
header.page { padding: 48px 0 28px; }
header.project { padding: 44px 0 32px; }

.kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 14px;
}

h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
header.project h1, header.page h1 { font-size: clamp(30px, 5vw, 44px); }

.thesis { max-width: var(--measure); color: var(--muted); font-size: 18px; }
.thesis strong { color: var(--ink); font-weight: 600; }

.header-links {
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  margin-top: 26px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
}

/* ---------- Sections ---------- */
section { padding: 32px 0; }

h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

/* ---------- Cards ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 36px;
}

.card-media {
  aspect-ratio: 16 / 9;
  background: #22252c;
  display: grid; place-items: center;
  border-bottom: 1px solid var(--line);
}
.card-media img, .card-media video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.media-placeholder {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px; color: var(--muted);
  border: 1px dashed var(--line);
  background: var(--panel);
  padding: 12px 18px; border-radius: 6px;
}

.card-body { padding: 28px 30px 30px; }

.card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a:hover { color: var(--accent); text-decoration: underline; }

.meta {
  display: flex; flex-wrap: wrap; gap: 6px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 18px;
}
.meta span + span::before { content: "·"; margin: 0 10px; color: var(--line); }

.card p, .prose p { max-width: var(--measure); color: var(--muted); margin-bottom: 12px; }
.card p strong, .prose p strong { color: var(--ink); font-weight: 600; }

.card-links {
  display: flex; flex-wrap: wrap; gap: 18px;
  margin-top: 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
}

/* ---------- System blocks ---------- */
.system {
  border-top: 1px solid var(--line);
  padding: 28px 0 8px;
}
.system h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 21px;
  margin-bottom: 10px;
}
.system .media {
  aspect-ratio: 16 / 9;
  background: #22252c;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid; place-items: center;
  margin: 16px 0 18px;
  overflow: hidden;
}
.system .media img, .system .media video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}

/* Process log */
details {
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  margin: 20px 0 14px;
  background: var(--accent-soft);
  max-width: var(--measure);
}
summary {
  cursor: pointer;
  padding: 12px 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--ink);
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::before { content: "+ "; color: var(--accent); font-weight: 500; }
details[open] summary::before { content: "\2212  "; }
details .log-body { padding: 2px 16px 16px; }
details p { font-size: 15px; }

/* ---------- Lists ---------- */
.now-list {
  list-style: none;
  display: grid; gap: 10px;
  max-width: var(--measure);
}
.now-list li {
  display: flex; gap: 12px; align-items: baseline;
  color: var(--muted);
}
.now-list li::before { content: "\2014"; color: var(--accent); flex-shrink: 0; }
.now-list strong { color: var(--ink); font-weight: 600; }

/* ---------- Footer ---------- */
footer {
  padding: 44px 0 72px;
  border-top: 1px solid var(--line);
  margin-top: 44px;
}
footer p { color: var(--muted); font-size: 14px; max-width: var(--measure); }
footer .contact-line {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 10px;
}

/* TODO markers */
.todo {
  color: #ff7b85;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
}

@media (max-width: 560px) {
  header.home { padding: 48px 0 36px; }
  .card-body { padding: 22px 18px 24px; }
  nav.site { flex-direction: column; gap: 10px; }
}