:root {
  --bg: #0d1117;
  --bg-elev: #161b22;
  --bg-elev-2: #1c2330;
  --border: #2a313c;
  --text: #e6edf3;
  --text-dim: #9aa5b1;
  --text-faint: #6b7684;
  --accent: #4dd0a7;
  --accent-dim: #2f8f74;
  --accent-2: #6ea8fe;
  --warn: #e3b341;
  --danger: #f0776a;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

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

code { font-family: var(--mono); font-size: 0.86em; background: var(--bg-elev-2); padding: 1px 5px; border-radius: 4px; }

/* header ------------------------------------------------------------ */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { font-size: 26px; color: var(--accent); }
.brand-title { font-weight: 650; letter-spacing: -0.01em; }
.brand-sub { font-size: 12px; color: var(--text-faint); font-family: var(--mono); }

.header-right { display: flex; align-items: center; gap: 12px; }
.gh-link {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px; color: var(--text-dim);
  border: 1px solid var(--border); background: var(--bg-elev);
}
.gh-link:hover { color: var(--text); border-color: var(--text-faint); }

.tabs { display: flex; gap: 4px; background: var(--bg-elev); padding: 4px; border-radius: var(--radius); border: 1px solid var(--border); }
.tab {
  border: 0; background: transparent; color: var(--text-dim);
  font: inherit; font-size: 14px; padding: 6px 14px; border-radius: 7px; cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.is-active { background: var(--bg-elev-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--border); }

/* views ------------------------------------------------------------- */
.view { display: none; padding: 32px 0 64px; }
.view.is-active { display: block; animation: fade 0.2s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.hero { padding: 16px 0 8px; }
.hero h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; letter-spacing: -0.02em; }
.lede { font-size: 17px; color: var(--text-dim); max-width: 65ch; }
.lede em { color: var(--text); font-style: normal; border-bottom: 1px dashed var(--accent-dim); }
.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }

.btn {
  border: 1px solid var(--border); background: var(--bg-elev);
  color: var(--text); font: inherit; font-size: 14px; padding: 9px 16px;
  border-radius: 8px; cursor: pointer; transition: border-color 0.15s, background 0.15s;
}
.btn:hover:not(:disabled) { border-color: var(--text-faint); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #07110d; font-weight: 600; }
.btn-primary:hover:not(:disabled) { background: #5fdbb4; }
.btn-ghost { background: transparent; }

/* panels ---------------------------------------------------------- */
.panel {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 24px; margin-top: 20px;
}
.panel h2 { margin: 0 0 12px; font-size: 20px; letter-spacing: -0.01em; }
.panel h3 { margin: 18px 0 8px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.note { color: var(--text-dim); font-size: 14px; }
.note code, .panel p code { background: var(--bg-elev-2); }

.steps { margin: 0; padding-left: 22px; }
.steps li { margin: 7px 0; color: var(--text-dim); }
.steps strong { color: var(--text); }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.cols h3:first-child { margin-top: 0; }
ul.plain { list-style: none; margin: 0; padding: 0; }
ul.plain li { padding: 3px 0; font-family: var(--mono); font-size: 13px; word-break: break-all; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-family: var(--mono); font-size: 12px; padding: 3px 9px;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-dim);
}
.chip.matched { color: var(--accent); border-color: var(--accent-dim); background: rgba(77, 208, 167, 0.08); }
.filter-chips .chip { cursor: pointer; user-select: none; }
.filter-chips .chip.active { background: var(--accent); color: #07110d; border-color: var(--accent); }

.code {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; font-size: 12.5px; line-height: 1.55;
}
.code code { background: none; padding: 0; color: var(--text-dim); }

/* stats ---------------------------------------------------------- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 22px; }
.stat {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px; text-align: left;
}
.stat-n { font-size: 26px; font-weight: 650; font-family: var(--mono); letter-spacing: -0.02em; }
.stat-l { font-size: 12px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }
.live-stats .stat-n { color: var(--accent); }

/* bars --------------------------------------------------------- */
.bars { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.bar-row { display: grid; grid-template-columns: 90px 1fr 44px; align-items: center; gap: 10px; font-size: 13px; }
.bar-row .bar-label { font-family: var(--mono); color: var(--text-dim); text-align: right; }
.bar-track { display: block; background: var(--bg-elev-2); border-radius: 4px; height: 16px; overflow: hidden; }
.bar-fill { display: block; background: linear-gradient(90deg, var(--accent-dim), var(--accent)); height: 100%; min-width: 2px; border-radius: 4px; }
.bar-row .bar-val { font-family: var(--mono); color: var(--text-faint); }

/* forms ------------------------------------------------------- */
.form { margin-top: 6px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
.field .hint { font-weight: 400; color: var(--text-faint); font-size: 12px; }
.field textarea, .field input {
  width: 100%; background: var(--bg); border: 1px solid var(--border);
  color: var(--text); font-family: var(--mono); font-size: 13px;
  padding: 9px 11px; border-radius: 7px; resize: vertical;
}
.field textarea:focus, .field input:focus { outline: none; border-color: var(--accent-dim); }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.field.sm { flex: 1; min-width: 110px; }

/* progress / status ------------------------------------------- */
.progress { height: 4px; background: var(--bg-elev-2); border-radius: 3px; margin-top: 16px; overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: var(--accent); transition: width 0.3s ease; }
.status-line { font-family: var(--mono); font-size: 13px; color: var(--text-dim); margin-top: 10px; min-height: 20px; }

/* split panels ----------------------------------------------- */
.split { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 16px; margin-top: 4px; align-items: start; }
.results-panel h3, .log-panel h3 { margin-top: 0; display: flex; align-items: center; gap: 8px; }
.counter {
  font-family: var(--mono); font-size: 12px; background: var(--bg-elev-2);
  padding: 1px 8px; border-radius: 10px; color: var(--text-dim);
}

.results { display: flex; flex-direction: column; gap: 10px; max-height: 620px; overflow-y: auto; }
.card {
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 13px 15px; animation: fade 0.2s ease;
}
.card-head { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.card-title { font-weight: 600; font-size: 15px; }
.card-title a { color: var(--text); }
.card-title a:hover { color: var(--accent-2); }
.card-n { font-family: var(--mono); font-size: 12px; color: var(--text-faint); flex-shrink: 0; }
.card-snip { font-size: 13px; color: var(--text-dim); margin: 7px 0 9px; }
.card-terms { display: flex; flex-wrap: wrap; gap: 5px; }

.log { font-family: var(--mono); font-size: 12px; line-height: 1.7; max-height: 620px; overflow-y: auto; background: var(--bg); border-radius: 7px; padding: 10px 12px; border: 1px solid var(--border); }
.log-line { white-space: pre-wrap; word-break: break-word; }
.log-save { color: var(--accent); }
.log-skip { color: var(--text-faint); }
.log-err { color: var(--danger); }
.log-info { color: var(--text-dim); }

/* archive --------------------------------------------------- */
.archive-controls { display: flex; gap: 10px; margin: 8px 0 12px; flex-wrap: wrap; }
.archive-controls input[type="search"] { flex: 1; min-width: 200px; background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 9px 12px; border-radius: 7px; font: inherit; font-size: 14px; }
.archive-controls select { background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 9px 12px; border-radius: 7px; font: inherit; font-size: 14px; }
.archive-meta { font-family: var(--mono); font-size: 12px; color: var(--text-faint); margin: 14px 0 8px; }
.load-more { text-align: center; margin-top: 18px; }

.site-footer { border-top: 1px solid var(--border); padding: 20px 0; color: var(--text-faint); font-size: 12px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* responsive ----------------------------------------------- */
@media (max-width: 820px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .cols { grid-template-columns: 1fr; gap: 8px; }
  .split { grid-template-columns: 1fr; }
  .hero h1 { font-size: 27px; }
  .site-header .wrap { justify-content: center; }
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa; --bg-elev: #ffffff; --bg-elev-2: #eef1f4;
    --border: #d7dce2; --text: #1c2128; --text-dim: #4a5561;
    --text-faint: #7a838f; --accent: #1f8f6b; --accent-dim: #34a582;
    --accent-2: #2563c9;
  }
  .site-header { background: rgba(246, 248, 250, 0.85); }
  .btn-primary { color: #ffffff; }
  .code, .log { background: #0d1117; }
  .code code { color: #adbac7; }
}