/* skill-mirror — dark theme stylesheet */

:root {
  --bg: #0b0d12;
  --panel: #11141b;
  --panel-2: #161a23;
  --border: #1f2530;
  --text: #e8eaee;
  --text-dim: #9aa3b2;
  --text-mute: #6b7280;
  --accent: #7c5cff;
  --accent-2: #22c1c3;
  --warn: #f59e0b;
  --error: #ef4444;
  --success: #10b981;
  --add-bg: #103226;
  --del-bg: #3b1320;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
}

code {
  background: var(--panel-2);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

pre {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 12px 0;
}

pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: 12.5px;
  line-height: 1.5;
}

h1, h2, h3, h4 { color: var(--text); margin: 24px 0 12px; line-height: 1.25; }
h1 { font-size: 28px; letter-spacing: -0.01em; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; color: var(--text-dim); }

p { margin: 8px 0; }

blockquote {
  border-left: 3px solid var(--accent);
  padding: 4px 12px;
  margin: 10px 0;
  background: var(--panel-2);
  border-radius: 0 6px 6px 0;
  color: var(--text-dim);
}

ul, ol { margin: 6px 0 6px 24px; }
li { margin: 2px 0; }

hr { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }

/* ---------- layout ---------- */

.shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 28px 96px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 13, 18, 0.92);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 10;
}
.topbar .brand {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.topbar .brand span.dot { color: var(--accent); }
.topbar nav { display: flex; gap: 18px; }
.topbar nav a { color: var(--text-dim); font-size: 14px; }
.topbar nav a:hover { color: var(--text); }

footer.foot {
  margin-top: 64px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-mute);
  font-size: 13px;
}
footer.foot a { color: var(--text-dim); }

/* ---------- hero ---------- */

.hero {
  background: linear-gradient(180deg, var(--panel-2) 0%, var(--panel) 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  margin-bottom: 28px;
}
.hero h1 { margin: 0 0 8px; font-size: 32px; }
.hero h1 .accent { color: var(--accent); }
.hero p.tag { color: var(--text-dim); margin: 0 0 18px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.stat .v { font-size: 28px; font-weight: 700; color: var(--text); }
.stat .l { font-size: 12px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 2px; }
.stat .v.muted { color: var(--text-mute); }

/* ---------- sections ---------- */

section.block {
  margin: 36px 0 0;
}
section.block > h2 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 18px;
  font-weight: 600;
}
section.block > h2 .hint {
  font-size: 12px;
  color: var(--text-mute);
  font-weight: 400;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.card .card-title {
  font-weight: 600;
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.card .card-title a { color: var(--text); }
.card .card-title a:hover { color: var(--accent); }
.card .card-sub {
  color: var(--text-mute);
  font-size: 12px;
  margin-top: 2px;
}
.card .card-body {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.badge {
  display: inline-block;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 11px;
  color: var(--text-dim);
}
.badge.accent { background: rgba(124, 92, 255, 0.12); border-color: rgba(124, 92, 255, 0.4); color: #b9a8ff; }
.badge.success { background: rgba(16, 185, 129, 0.12); border-color: rgba(16, 185, 129, 0.4); color: #6ee7b7; }
.badge.warn { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.4); color: #fcd34d; }

/* ---------- universal skills list ---------- */

.universal-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 8px;
}
.uni-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.uni-row:hover { border-color: var(--accent); }
.uni-row .slug { font-family: ui-monospace, Menlo, monospace; font-size: 14px; }
.uni-row .libs { color: var(--text-dim); font-size: 12px; display: flex; flex-wrap: wrap; gap: 6px; }

/* ---------- empty / loading states ---------- */

.empty-state {
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  color: var(--text-mute);
}
.empty-state p { margin: 4px 0; }

.spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--text-mute);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- skill comparison view ---------- */

.skill-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}
.skill-head .slug-h1 {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 28px;
  color: var(--accent);
}

.tab-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}
.tab {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
}
.tab:hover { border-color: var(--accent); color: var(--text); }
.tab.active { background: var(--accent); color: white; border-color: var(--accent); }

.impl-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 18px 0;
}
.impl-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.impl-title {
  font-size: 16px;
  font-weight: 600;
  display: flex;
  gap: 10px;
  align-items: center;
}
.impl-meta {
  font-size: 12px;
  color: var(--text-mute);
  display: flex;
  gap: 14px;
}
.impl-meta .src { color: var(--accent); }
.impl-name { margin: 8px 0 4px; font-size: 18px; }
.impl-desc { color: var(--text-dim); margin: 0 0 12px; font-size: 13px; }
.impl-body { font-size: 14px; line-height: 1.6; }
.impl-body h1 { font-size: 20px; }
.impl-body h2 { font-size: 18px; }
.impl-body h3 { font-size: 16px; }

/* ---------- diff ---------- */

.diff-table {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 0;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  overflow-x: auto;
}
.diff-stats {
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.diff-stats .added { color: #6ee7b7; margin-right: 12px; }
.diff-stats .removed { color: #fca5a5; margin-right: 12px; }
.diff-stats .muted { color: var(--text-mute); }
.diff-row { display: flex; gap: 6px; padding: 1px 16px; }
.diff-row.add { background: var(--add-bg); }
.diff-row.del { background: var(--del-bg); }
.diff-marker { width: 14px; color: var(--text-mute); text-align: center; user-select: none; }
.diff-row code { background: transparent; border: 0; padding: 0; white-space: pre; }

/* ---------- table ---------- */

table.simple {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
  font-size: 13px;
}
table.simple th, table.simple td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
}
table.simple th { color: var(--text-mute); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
table.simple tbody tr:hover { background: var(--panel-2); }

/* ---------- search ---------- */

.search-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.search-row input[type="search"] {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 13px;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.search-row input[type="search"]:focus { border-color: var(--accent); }

@media (max-width: 720px) {
  .shell { padding: 16px 18px 80px; }
  .hero { padding: 22px 18px; }
  .hero h1 { font-size: 24px; }
  .topbar { padding: 12px 18px; }
}