/* ── Reset ─────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0f1117;--surface:#1a1d27;--border:#2e3347;
  --accent:#6c8eff;--text:#e2e8f0;--muted:#64748b;
  --radius:12px;--shadow:0 8px 32px rgba(0,0,0,.45);
  --c0:#6c8eff;--c1:#4ade80;--c2:#f87171;--c3:#facc15;--c4:#fb923c;--c5:#a78bfa;
}
body{min-height:100vh;display:flex;flex-direction:column;align-items:center;
  background:var(--bg);font-family:'Segoe UI',system-ui,sans-serif;color:var(--text);padding:1.5rem}

/* ── Card ───────────────────────────────────────────────────────────────── */
.card{width:100%;max-width:580px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;margin-bottom:1.5rem}
header{padding:1.75rem 2rem 1.25rem;border-bottom:1px solid var(--border)}
.badge{display:inline-block;background:rgba(108,142,255,.15);color:var(--accent);
  font-size:.72rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  padding:.25rem .65rem;border-radius:999px;border:1px solid rgba(108,142,255,.3);margin-bottom:.75rem}
h1{font-size:1.45rem;font-weight:700;color:#f1f5f9}
.subtitle{margin-top:.4rem;font-size:.83rem;color:var(--muted);line-height:1.5}
.back-link{display:inline-flex;align-items:center;gap:.35rem;color:var(--muted);
  font-size:.78rem;text-decoration:none;margin-bottom:.75rem}
.back-link:hover{color:var(--accent)}

/* ── Loading ────────────────────────────────────────────────────────────── */
.loading-box{display:flex;align-items:center;gap:1rem;padding:2rem 2rem;
  color:var(--muted);font-size:.9rem}
.spinner{width:22px;height:22px;border:3px solid var(--border);border-top-color:var(--accent);
  border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}
.hidden{display:none!important}

/* ── Sliders ────────────────────────────────────────────────────────────── */
.sliders{padding:1.4rem 2rem 0;display:flex;flex-direction:column;gap:1rem}
.slider-group{display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;
  gap:.2rem .5rem;align-items:center}
.slider-group label{grid-column:1/2;display:flex;align-items:baseline;gap:.4rem}
.feat-name{font-size:.86rem;font-weight:600;color:var(--text)}
.feat-range{font-size:.72rem;color:var(--muted)}
.val-label{grid-column:2/3;grid-row:1/3;font-size:.86rem;font-weight:600;
  color:var(--accent);min-width:5rem;text-align:right}
input[type=range]{grid-column:1/2;width:100%;-webkit-appearance:none;appearance:none;
  height:4px;border-radius:2px;background:var(--border);cursor:pointer;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;
  border-radius:50%;background:var(--accent);border:2px solid var(--bg);
  box-shadow:0 0 0 3px rgba(108,142,255,.2);transition:transform .1s}
input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.2)}

/* ── Result ─────────────────────────────────────────────────────────────── */
.result-area{padding:1.4rem 2rem;display:flex;flex-direction:column;gap:1.2rem}
.prediction-box{background:rgba(108,142,255,.08);border:1px solid rgba(108,142,255,.2);
  border-radius:10px;padding:1rem 1.4rem;display:flex;flex-direction:column;gap:.2rem}
.pred-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.pred-name{font-size:1.4rem;font-weight:700;color:#f1f5f9;transition:color .2s}
.pred-conf{font-size:.84rem;color:var(--accent);font-weight:500}
.prob-bars{display:flex;flex-direction:column;gap:.55rem}
.prob-row{display:grid;grid-template-columns:130px 1fr 48px;align-items:center;gap:.55rem}
.prob-class{font-size:.78rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.prob-track{height:8px;background:var(--border);border-radius:4px;overflow:hidden}
.prob-fill{height:100%;border-radius:4px;transition:width .25s ease}
.prob-pct{font-size:.76rem;font-weight:600;text-align:right}
.fill-0{background:var(--c0)}.fill-1{background:var(--c1)}.fill-2{background:var(--c2)}
.fill-3{background:var(--c3)}.fill-4{background:var(--c4)}.fill-5{background:var(--c5)}
.pct-0{color:var(--c0)}.pct-1{color:var(--c1)}.pct-2{color:var(--c2)}
.pct-3{color:var(--c3)}.pct-4{color:var(--c4)}.pct-5{color:var(--c5)}

/* ── Regression bar ─────────────────────────────────────────────────────── */
.reg-result{display:flex;flex-direction:column;gap:.4rem}
.reg-bar-wrap{height:12px;background:var(--border);border-radius:6px;overflow:hidden}
.reg-bar{height:100%;background:linear-gradient(90deg,var(--c1),var(--accent));
  border-radius:6px;transition:width .3s ease}
.reg-labels{display:flex;justify-content:space-between;font-size:.72rem;color:var(--muted)}

/* ── Presets ────────────────────────────────────────────────────────────── */
.presets{padding:0 2rem 1.5rem;display:flex;align-items:center;flex-wrap:wrap;gap:.5rem}
.preset-label{font-size:.76rem;color:var(--muted);margin-right:.25rem}
.preset-btn{padding:.28rem .85rem;border-radius:999px;border:1px solid var(--border);
  background:transparent;color:var(--text);font-size:.78rem;cursor:pointer;transition:all .15s}
.preset-btn:hover{background:rgba(108,142,255,.12);border-color:var(--accent);color:var(--accent)}

/* ── Stats strip ────────────────────────────────────────────────────────── */
.stats{display:flex;gap:.5rem;padding:0 2rem .5rem;flex-wrap:wrap}
.stat-chip{background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:6px;
  padding:.25rem .65rem;font-size:.72rem;color:var(--muted)}
.stat-chip strong{color:var(--text)}

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer{padding:1rem 2rem;border-top:1px solid var(--border);font-size:.73rem;
  color:var(--muted);display:flex;gap:.75rem;flex-wrap:wrap}
footer a{color:var(--accent);text-decoration:none}
footer a:hover{text-decoration:underline}

/* ── Landing page cards ─────────────────────────────────────────────────── */
.hero{text-align:center;padding:2.5rem 1rem 1.5rem;max-width:700px}
.hero h1{font-size:2rem;font-weight:800;color:#f1f5f9;margin-bottom:.5rem}
.hero p{color:var(--muted);font-size:.95rem;line-height:1.6;max-width:520px;margin:0 auto}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:1rem;max-width:900px;width:100%;padding:0 1rem 3rem}
.ds-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.5rem;text-decoration:none;color:var(--text);transition:all .2s;
  display:flex;flex-direction:column;gap:.5rem}
.ds-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.ds-icon{font-size:2rem;margin-bottom:.25rem}
.ds-name{font-size:1rem;font-weight:700;color:#f1f5f9}
.ds-desc{font-size:.78rem;color:var(--muted);line-height:1.5;flex:1}
.ds-tags{display:flex;gap:.4rem;flex-wrap:wrap}
.ds-tag{background:rgba(108,142,255,.1);color:var(--accent);border-radius:999px;
  font-size:.68rem;padding:.15rem .5rem;border:1px solid rgba(108,142,255,.2)}
.tag-reg{background:rgba(74,222,128,.08);color:var(--c1);border-color:rgba(74,222,128,.2)}

/* ═══════════════════════════════════════════════════════════════════════════
   STATISTICAL TERMINALS
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Two-pane layout ─────────────────────────────────────────────────────── */
.terminals-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0 1rem 1.25rem;
}
@media (max-width: 700px) {
  .terminals-row { grid-template-columns: 1fr; }
}

/* ── Terminal chrome ─────────────────────────────────────────────────────── */
.terminal {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 10px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: .72rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 340px;
  max-height: 620px;
}
.term-header {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .75rem;
  background: #161b22;
  border-bottom: 1px solid #30363d;
  flex-shrink: 0;
}
.term-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.term-dot--green  { background: #3fb950; }
.term-dot--yellow { background: #d29922; }
.term-dot--red    { background: #f85149; }
.term-title {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: #8b949e;
  margin-left: .15rem;
}
.term-body {
  padding: .65rem .75rem;
  overflow-y: auto;
  flex: 1;
  color: #c9d1d9;
}
.term-body::-webkit-scrollbar       { width: 5px; }
.term-body::-webkit-scrollbar-track { background: transparent; }
.term-body::-webkit-scrollbar-thumb { background: #30363d; border-radius: 3px; }

.term-section-label {
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: #6e7681;
  border-bottom: 1px solid #21262d;
  padding-bottom: .2rem;
  margin-bottom: .4rem;
  text-transform: uppercase;
}

/* ── Input vector table (Pane 1) ─────────────────────────────────────────── */
.st-scroll {
  overflow-x: auto;
  margin-bottom: .5rem;
}
.st-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .68rem;
  white-space: nowrap;
}
.st-table thead th {
  color: #6e7681;
  font-size: .6rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .15rem .3rem;
  text-align: left;
  border-bottom: 1px solid #21262d;
}
.st-row td { padding: .2rem .3rem; border-bottom: 1px solid #161b22; }
.st-row:last-child td { border-bottom: none; }
.st-row:hover { background: #161b22; }
.st-name { color: #79c0ff; max-width: 120px; overflow: hidden; text-overflow: ellipsis; }
.st-val  { color: #ffa657; text-align: right; font-variant-numeric: tabular-nums; }
.st-z    { text-align: right; font-variant-numeric: tabular-nums; }
.st-bar, .st-zbar { padding-left: .4rem; }

/* ── Architecture table ──────────────────────────────────────────────────── */
.arch-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .68rem;
}
.arch-key {
  color: #6e7681;
  padding: .18rem .3rem;
  width: 38%;
  border-bottom: 1px solid #161b22;
  white-space: nowrap;
}
.arch-val {
  color: #c9d1d9;
  padding: .18rem .3rem;
  border-bottom: 1px solid #161b22;
}
.arch-table tr:last-child td { border-bottom: none; }
.arch-table tr:hover { background: #161b22; }

/* ── Spark bars ──────────────────────────────────────────────────────────── */
.spark-wrap {
  display: inline-block;
  height: 7px;
  background: #21262d;
  border-radius: 3px;
  overflow: hidden;
  vertical-align: middle;
  position: relative;
}
.spark-fill {
  display: block;
  height: 100%;
  border-radius: 3px;
  transition: width .15s ease;
}
.spark-fill--centred {
  position: absolute;
  top: 0;
  height: 100%;
}
.spark-center-line {
  position: absolute;
  left: 50%; top: 0;
  width: 1px; height: 100%;
  background: #30363d;
}

/* ── Stat badges ─────────────────────────────────────────────────────────── */
.stat-badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 999px;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .05em;
}
.stat-badge--green  { background: rgba(63,185,80,.15);  color: #3fb950; border: 1px solid rgba(63,185,80,.3); }
.stat-badge--blue   { background: rgba(88,166,255,.15); color: #58a6ff; border: 1px solid rgba(88,166,255,.3); }
.stat-badge--yellow { background: rgba(210,153,34,.15); color: #d29922; border: 1px solid rgba(210,153,34,.3); }
.stat-badge--red    { background: rgba(248,81,73,.15);  color: #f85149; border: 1px solid rgba(248,81,73,.3); }

/* ── Classification Pane (Pane 2) ────────────────────────────────────────── */
.qr-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .35rem;
  margin-bottom: .5rem;
}
.qr-summary-cell {
  background: #161b22;
  border: 1px solid #21262d;
  border-radius: 6px;
  padding: .4rem .55rem;
}
.qr-cell-label { font-size: .6rem; color: #6e7681; letter-spacing: .06em; text-transform: uppercase; margin-bottom: .15rem; }
.qr-cell-value { font-size: .82rem; font-weight: 600; color: #e6edf3; }
.qr-cell-value--big { font-size: 1rem; color: #79c0ff; }

.qr-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .68rem;
}
.qr-table thead th {
  color: #6e7681;
  font-size: .6rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .15rem .3rem;
  text-align: left;
  border-bottom: 1px solid #21262d;
}
.qr-table td { padding: .2rem .3rem; border-bottom: 1px solid #161b22; }
.qr-table tr:last-child td { border-bottom: none; }
.qr-table tr:hover { background: #161b22; }
.qr-top-row { background: rgba(88,166,255,.06); }
.qr-class   { color: #79c0ff; }
.qr-prob    { color: #ffa657; text-align: right; font-variant-numeric: tabular-nums; }
.qr-bar     { padding: 0 .35rem; }
.qr-logp    { color: #8b949e; text-align: right; font-variant-numeric: tabular-nums; }
.qr-odds    { color: #8b949e; text-align: right; font-variant-numeric: tabular-nums; }

/* ── Entropy bars ────────────────────────────────────────────────────────── */
.entropy-row {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .68rem;
}
.entropy-label { color: #6e7681; min-width: 3.5rem; }
.entropy-val   { color: #ffa657; min-width: 5.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.entropy-bar-wrap {
  flex: 1;
  height: 8px;
  background: #21262d;
  border-radius: 4px;
  overflow: hidden;
}
.entropy-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width .2s ease, background .2s ease;
}
.entropy-max { color: #6e7681; font-size: .62rem; min-width: 3rem; }

/* ── Regression scale ────────────────────────────────────────────────────── */
.scale-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: .3rem 0 .15rem;
}
.scale-label { font-size: .62rem; color: #6e7681; min-width: 2.5rem; white-space: nowrap; }
.scale-track {
  flex: 1;
  height: 14px;
  background: linear-gradient(90deg, #21262d 0%, #2d333b 100%);
  border-radius: 7px;
  position: relative;
  overflow: visible;
  border: 1px solid #30363d;
}
.scale-mean-line {
  position: absolute;
  top: -2px; bottom: -2px;
  width: 2px;
  background: #6e7681;
  border-radius: 1px;
  transform: translateX(-50%);
}
.scale-pointer {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(108,142,255,.3);
  transition: left .15s ease;
}
.scale-legend { font-size: .62rem; color: #6e7681; margin-bottom: .4rem; }

/* ── Note footer ─────────────────────────────────────────────────────────── */
.qr-note {
  margin-top: .6rem;
  padding: .4rem .5rem;
  background: #161b22;
  border-left: 2px solid #30363d;
  color: #6e7681;
  font-size: .62rem;
  line-height: 1.5;
  border-radius: 0 4px 4px 0;
}