:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --bg-elev: #161a22;
  --fg: #e6e9ef;
  --fg-dim: #98a0ad;
  --border: #262b36;
  --accent: #6aa9ff;
  --accent-fg: #0b1220;
  --danger: #ff6b6b;
  --radius: 10px;
  --gap: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 -apple-system, "SF Pro Text", "Segoe UI", "Noto Sans KR", sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--bg-elev);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}

.topbar {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: 0.5px; }
.brand-sub { color: var(--fg-dim); font-size: 13px; }

.container {
  max-width: 880px;
  margin: 40px auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.hero {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px 24px;
  margin: 0 0 24px;
}
.meta > div { display: flex; flex-direction: column; gap: 2px; }
.meta dt { color: var(--fg-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
.meta dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }

.downloads {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap);
  margin-bottom: 18px;
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: #1c2230;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  transition: border-color 120ms, transform 80ms;
}
.download-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.download-card .dl-label { font-weight: 600; }
.download-card .dl-meta { color: var(--fg-dim); font-size: 13px; font-variant-numeric: tabular-nums; }

.download-card.is-recommended {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(106, 169, 255, 0.18);
}
.download-card.is-recommended .dl-label::after {
  content: " · 추천";
  color: var(--accent);
  font-weight: 500;
}

.download-card.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.hint {
  color: var(--fg-dim);
  font-size: 13px;
  margin: 0;
}

.error {
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.35);
  border-radius: 8px;
  color: var(--danger);
  font-size: 14px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}
.links a {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--fg);
  font-size: 14px;
}
.links a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.links a.primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
  font-weight: 600;
}
.links a.primary:hover { color: var(--accent-fg); filter: brightness(0.95); }

.footer {
  max-width: 880px;
  margin: 40px auto 32px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--fg-dim);
  font-size: 12px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.footer code { font-size: 11px; }

@media (max-width: 540px) {
  .topbar { padding: 14px 18px; }
  .container { margin: 24px auto; padding: 0 16px; }
  .hero { padding: 20px; }
  .footer { flex-direction: column; }
}

/* Document pages (patch notes, known issues, index) */
.doc {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.doc-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.doc-header h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.2px;
}
.doc-header .badge {
  font-size: 11px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(106, 169, 255, 0.14);
  color: var(--accent);
  border: 1px solid rgba(106, 169, 255, 0.35);
}
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--fg-dim);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.doc-meta strong { color: var(--fg); font-weight: 600; }

.doc-section { margin-top: 24px; }
.doc-section h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--fg-dim);
  margin: 0 0 10px;
}
.doc-section ul { margin: 0; padding-left: 20px; }
.doc-section li { margin-bottom: 6px; }
.doc-section li code { font-size: 0.9em; }
.doc-section p { margin: 0 0 8px; }
.doc-section.empty {
  color: var(--fg-dim);
  font-style: italic;
}

.doc-footer {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--fg-dim);
  font-size: 13px;
}
.doc-footer a { color: var(--accent); }

/* Build list */
.build-list { list-style: none; padding: 0; margin: 16px 0 0; }
.build-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.build-list li:last-child { border-bottom: none; }
.build-list .build-version { font-weight: 600; min-width: 110px; font-variant-numeric: tabular-nums; }
.build-list .build-id { color: var(--fg-dim); font-size: 13px; font-variant-numeric: tabular-nums; }
.build-list .build-date { color: var(--fg-dim); font-size: 13px; margin-left: auto; }

/* Known issue items */
.issue {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #1c2230;
  margin-bottom: 12px;
}
.issue h3 {
  margin: 0 0 8px;
  font-size: 15px;
}
.issue .issue-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-bottom: 8px;
  color: var(--fg-dim);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}
.issue .issue-body { color: var(--fg); font-size: 14px; }
.issue .issue-body p { margin: 4px 0; }
.issue .issue-workaround {
  margin-top: 8px;
  padding: 8px 10px;
  background: rgba(106, 169, 255, 0.06);
  border-left: 2px solid var(--accent);
  font-size: 13px;
  color: var(--fg);
}

.crumbs {
  margin-bottom: 14px;
  color: var(--fg-dim);
  font-size: 13px;
}
.crumbs a { color: var(--fg-dim); }
.crumbs a:hover { color: var(--accent); }