/* ---------- Reset & Base ---------- */
* { box-sizing: border-box; }
:root {
  --bg: #0e1116;
  --bg-2: #0b0d12;
  --card: rgba(18, 20, 28, 0.75);
  --stroke: rgba(255,255,255,0.06);
  --text: #e9ecf1;
  --muted: #a7b0bf;
  --accent: #8b7bff;
  --accent-2: #49d0b0;
  --good: #36c76f;
  --warn: #ffb020;
  --bad: #ff5a7a;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 14px;
  --ring-track: rgba(255,255,255,0.09);
  --ring-size: 100px;
}
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Background Gradient ---------- */
.bg {
  position: fixed; inset: -20vmax;
  background:
    radial-gradient(60vmax 60vmax at 10% 0%, rgba(139,123,255,0.20), transparent 60%),
    radial-gradient(60vmax 60vmax at 90% 100%, rgba(84,226,190,0.18), transparent 60%),
    radial-gradient(40vmax 40vmax at 50% 30%, rgba(255,255,255,0.06), transparent 60%);
  filter: blur(30px);
  z-index: -1;
}

/* ---------- Top Nav ---------- */
.nav {
  position: sticky; top: 0; backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(10,12,18,0.9), rgba(10,12,18,0.5));
  border-bottom: 1px solid var(--stroke);
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; z-index: 10;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.2px; }
.brand .muted { color: var(--muted); font-weight: 600; }
.brand .dot { opacity: 0.6; }

.actions { display: inline-flex; align-items: center; gap: 8px; }

.icon-btn {
  appearance: none; border: 1px solid var(--stroke); background: rgba(255,255,255,0.03);
  color: var(--text); padding: 8px; border-radius: 10px; cursor: pointer; box-shadow: var(--shadow);
}
.icon-btn:hover { background: rgba(255,255,255,0.06); }

/* ---------- Chips / Badges ---------- */
.chip {
  appearance: none; border: 1px solid var(--stroke); background: rgba(255,255,255,0.04);
  color: var(--text); padding: 8px 10px; border-radius: 999px; font-weight: 600; cursor: default;
}
.chip.ghost { background: rgba(255,255,255,0.02); cursor: pointer; }
.chip.ghost:hover { background: rgba(255,255,255,0.06); }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, rgba(139,123,255,0.2), rgba(84,226,190,0.15));
  border: 1px solid var(--stroke);
  padding: 4px 10px; border-radius: 999px; font-weight: 700;
}

/* ---------- Layout ---------- */
.container { max-width: 1000px; margin: 32px auto; padding: 0 16px; display: grid; gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.controls .row { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 14px; align-items: end; }
.controls .group .title { font-weight: 700; font-size: 13px; letter-spacing: 0.2px; color: var(--muted); margin-bottom: 8px; }
.spacer { flex: 1; }

.input .chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.row { display: flex; gap: 10px; align-items: center; }
.row.end { justify-content: space-between; }
.small { font-size: 12px; }
.tiny { font-size: 11px; }
.muted { color: var(--muted); }

/* ---------- Segmented Control ---------- */
.seg {
  display: inline-grid; grid-auto-flow: column; gap: 6px; background: rgba(255,255,255,0.04);
  border: 1px solid var(--stroke); padding: 6px; border-radius: 12px;
}
.seg input[type="radio"] { display: none; }
.seg label {
  cursor: pointer; padding: 8px 12px; border-radius: 8px; font-weight: 600; color: var(--muted);
}
.seg input:checked + label {
  color: var(--text);
  background: linear-gradient(135deg, rgba(139,123,255,0.20), rgba(73,208,176,0.15));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
}

/* ---------- Buttons ---------- */
.buttons { display: inline-flex; align-items: center; gap: 8px; }
.btn {
  appearance: none; border: 1px solid var(--stroke); background: rgba(255,255,255,0.03); color: var(--text);
  font-weight: 700; padding: 10px 14px; border-radius: 12px; cursor: pointer; transition: transform 120ms ease;
}
.btn:hover { background: rgba(255,255,255,0.06); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: linear-gradient(135deg, #8b7bff, #49d0b0);
  border: none; color: #0b0d12; text-shadow: 0 1px 0 rgba(255,255,255,0.3);
}
.btn.ghost { background: rgba(255,255,255,0.02); }
.btn.subtle { background: rgba(255,255,255,0.02); }
.btn.tiny { padding: 6px 10px; font-size: 12px; }

.spinner {
  --s: 12px;
  display: inline-block; width: var(--s); height: var(--s); margin-right: 8px; vertical-align: -2px;
  border: 2px solid rgba(255,255,255,0.25); border-top-color: var(--text); border-radius: 50%;
  animation: spin 780ms linear infinite; opacity: 0; transform: scale(0.9);
}
.btn.loading .spinner, .chip.loading .spinner { opacity: 1; }
@keyframes spin { to { transform: rotate(1turn); } }

/* ---------- Textarea ---------- */
textarea {
  width: 100%; background: rgba(9, 11, 16, 0.6); border: 1px solid var(--stroke); color: var(--text);
  border-radius: 12px; padding: 12px 14px; resize: vertical; min-height: 130px; outline: none;
  transition: box-shadow 160ms ease, border-color 160ms ease;
}
textarea:focus { border-color: rgba(139,123,255,0.55); box-shadow: 0 0 0 4px rgba(139,123,255,0.15); }

/* ---------- Results ---------- */
.result-head { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; }
.ring {
  width: var(--ring-size); height: var(--ring-size);
  background: conic-gradient(var(--accent) var(--pct, 0%), var(--ring-track) 0%);
  border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--stroke);
}
.ring-core {
  width: calc(var(--ring-size) - 22px); height: calc(var(--ring-size) - 22px);
  background: rgba(8,10,15,0.85); border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--stroke);
}
.ring-core span { font-weight: 800; letter-spacing: 0.5px; }

.pred-main { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; }

.bars { display: grid; gap: 10px; margin-top: 6px; }
.bar {
  display: grid; gap: 6px; background: rgba(255,255,255,0.03); border: 1px solid var(--stroke);
  border-radius: 12px; padding: 10px 12px;
}
.bar-head { display: flex; justify-content: space-between; align-items: baseline; }
.bar-line { height: 12px; background: rgba(255,255,255,0.06); border-radius: 8px; overflow: hidden; }
.bar-fill {
  height: 100%; width: 0; background: linear-gradient(90deg, #8b7bff, #49d0b0);
  transition: width 260ms ease;
}

.raw { margin-top: 10px; }
.raw summary { cursor: pointer; }
.raw .raw-actions { display: flex; justify-content: flex-end; margin: 8px 0; }
pre#raw {
  margin: 0; padding: 12px; font-size: 12px; background: #0f1117; border: 1px solid var(--stroke);
  color: #e1e5ec; border-radius: 12px; overflow: auto; max-height: 320px;
}

/* ---------- Disclaimer & Footer ---------- */
.disclaimer h3 { margin: 0 0 6px; }
.foot { color: var(--muted); text-align: center; padding: 20px; }
.foot a { color: var(--text); text-decoration: underline dotted; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .controls .row { grid-template-columns: 1fr; }
}

/* ---------- Light theme ---------- */
@media (prefers-color-scheme: light) {
  html[data-theme="auto"] body { background: #f6f7fb; color: #12131a; }
}

html[data-theme="light"] {
  --bg: #f6f7fb;
  --bg-2: #ffffff;
  --card: rgba(255,255,255,0.85);
  --stroke: rgba(0,0,0,0.08);
  --text: #12131a;
  --muted: #57607a;
  --ring-track: rgba(0,0,0,0.06);
  --shadow: 0 10px 30px rgba(32,35,43,0.1);
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
  .bar-fill { transition: none; }
}