:root {
  --bg: #ffffff;
  --bg2: #f6f7fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --link: #2563eb;
  --danger: #dc2626;
  --ok: #059669;
  --shadow: 0 2px 10px rgba(0,0,0,0.06);
  --radius: 14px;
  --maxw: 1060px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0b1220;
  --bg2: #0f172a;
  --card: #0b152c;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: #1f2a44;
  --link: #60a5fa;
  --danger: #f87171;
  --ok: #34d399;
  --shadow: 0 2px 14px rgba(0,0,0,0.35);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    --bg: #0b1220;
    --bg2: #0f172a;
    --card: #0b152c;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --border: #1f2a44;
    --link: #60a5fa;
    --danger: #f87171;
    --ok: #34d399;
    --shadow: 0 2px 14px rgba(0,0,0,0.35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

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

.container { max-width: var(--maxw); margin: 0 auto; padding: 18px; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 50;
}

.nav .brand { font-weight: 800; letter-spacing: 0.2px; }
.nav .links { display:flex; gap: 14px; align-items:center; flex-wrap: wrap; }
.pill {
  display:inline-flex; align-items:center; gap: 8px;
  border: 1px solid var(--border); padding: 7px 10px;
  border-radius: 999px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.pill img.avatar { width: 22px; height: 22px; border-radius: 999px; border: 1px solid var(--border); object-fit: cover; }

.hero {
  background: linear-gradient(180deg, var(--bg2), var(--bg));
  border-bottom: 1px solid var(--border);
}
.hero .container { padding-top: 34px; padding-bottom: 26px; }
.hero h1 { margin: 0 0 8px 0; font-size: 34px; }
.hero p { margin: 0 0 18px 0; color: var(--muted); max-width: 720px; }
.hero .cta { display:flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display:inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
  color: var(--text);
}
.btn.primary { background: var(--link); border-color: var(--link); color: white; }
.btn.danger { background: var(--danger); border-color: var(--danger); color: white; }
.btn.small { padding: 7px 10px; border-radius: 10px; font-size: 14px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.grid {
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.col-8 { grid-column: span 8; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-12 { grid-column: span 12; }

@media (max-width: 900px) {
  .col-8, .col-4 { grid-column: span 12; }
  .col-6 { grid-column: span 12; }
  .hero h1 { font-size: 28px; }
}

pre {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  overflow: auto;
  line-height: 1.5;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

/* Inline code */
p code, li code, td code, th code, .muted code {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 8px;
}

h2 { margin-top: 0; }
.muted { color: var(--muted); }
.kv { display:flex; gap: 12px; flex-wrap: wrap; }
.kv .chip {
  border: 1px solid var(--border);
  background: var(--bg2);
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
}

.flash { margin: 14px 0; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--border); }
.flash.ok { border-color: rgba(5,150,105,0.3); background: rgba(5,150,105,0.08); }
.flash.err { border-color: rgba(220,38,38,0.3); background: rgba(220,38,38,0.08); }
.flash.warn { border-color: rgba(234,179,8,0.3); background: rgba(234,179,8,0.10); }

form .row { margin-bottom: 12px; }
label { display:block; font-weight: 700; margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="password"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}
textarea { min-height: 120px; resize: vertical; }

.table { width:100%; border-collapse: collapse; }
.table th, .table td { border-bottom: 1px solid var(--border); padding: 10px 8px; text-align: left; vertical-align: top; }
.table th { color: var(--muted); font-weight: 800; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }

.footer { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }

.thread-title { font-weight: 800; font-size: 18px; margin: 0; }
.post {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 12px;
}
.post:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.post-meta { display:flex; gap: 10px; align-items:center; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.post-meta img.avatar { width: 32px; height: 32px; border-radius: 999px; border: 1px solid var(--border); object-fit: cover; }
.post-content { white-space: pre-wrap; line-height: 1.5; }

.badge { display:inline-block; padding: 3px 8px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg2); color: var(--muted); font-size: 12px; }
.badge.admin { border-color: rgba(37,99,235,0.35); }
.badge.mod { border-color: rgba(5,150,105,0.35); }
.badge.banned { border-color: rgba(220,38,38,0.35); }

.actions { display:flex; gap: 8px; flex-wrap: wrap; align-items:center; }
hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }