/* ML demos — shared stylesheet. Same design tokens as harispaartan.github.io. No external requests. */

@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("../assets/fonts/inter-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Space Grotesk"; font-style: normal; font-weight: 300 700; font-display: swap; src: url("../assets/fonts/space-grotesk-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 100 800; font-display: swap; src: url("../assets/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2"); }

:root {
  --bg: #0B0F14; --surface: #121820; --surface-2: #182130; --border: #1F2A36;
  --text: #E6EDF3; --muted: #93A1B0; --accent: #F2A93B; --accent-fg: #1A1200;
  --pos: #3DDC97; --neg: #F87171; --info: #60A5FA; --violet: #A78BFA;
  --shadow: 0 1px 0 rgba(255,255,255,0.03) inset, 0 12px 32px rgba(0,0,0,0.35);
  --glow: radial-gradient(60% 50% at 70% 0%, rgba(242,169,59,0.12), transparent 70%);
  --grid: rgba(255,255,255,0.035);
  --font-text: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --radius: 14px; --radius-sm: 8px; --max: 1200px; --gutter: 16px;
  color-scheme: dark;
}
[data-theme="light"] {
  --bg: #F7F7F4; --surface: #FFFFFF; --surface-2: #F0EFEA; --border: #DDD9D0;
  --text: #14181D; --muted: #5B6472; --accent: #B45309; --accent-fg: #FFFFFF;
  --pos: #15803D; --neg: #B91C1C; --info: #1D4ED8; --violet: #6D28D9;
  --shadow: 0 1px 2px rgba(20,24,29,0.06), 0 10px 28px rgba(20,24,29,0.08);
  --glow: radial-gradient(60% 50% at 70% 0%, rgba(180,83,9,0.10), transparent 70%);
  --grid: rgba(20,24,29,0.045);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-text); font-size: 1rem; line-height: 1.6; overflow-x: hidden;
  background-image: var(--glow), linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px; background-attachment: fixed;
}
a { color: var(--accent); text-decoration: none; text-underline-offset: 0.2em; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 600; }
h3 { font-size: 1.1rem; font-weight: 600; }
p { margin: 0; }
code { font-family: var(--font-mono); font-size: 0.88em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 0.05em 0.35em; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-fg); padding: 8px 12px; border-radius: var(--radius-sm); z-index: 100; }
.skip:focus { left: 12px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background: color-mix(in srgb, var(--bg) 84%, transparent); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; gap: 10px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-family: var(--font-display); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 0.8rem; }
.brand small { color: var(--muted); font-weight: 500; font-family: var(--font-mono); font-size: 0.78rem; margin-left: 4px; }
.nav .spacer { flex: 1; }
.nav-link { color: var(--muted); font-family: var(--font-mono); font-size: 0.86rem; padding: 7px 10px; border-radius: var(--radius-sm); }
.nav-link:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.icon-btn { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
.icon-btn:hover { background: var(--surface-2); }
.icon-btn svg { width: 17px; height: 17px; }

/* Overview page */
.hero { padding: clamp(44px, 7vw, 88px) 0 clamp(28px, 4vw, 44px); max-width: 760px; }
.eyebrow { font-family: var(--font-mono); color: var(--accent); font-size: 0.82rem; margin-bottom: 12px; }
.lead { color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.15rem); margin-top: 14px; max-width: 60ch; }
.lead strong { color: var(--text); font-weight: 600; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 10px 0 56px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; display: flex; flex-direction: column; gap: 10px; color: inherit; transition: transform 0.25s ease, border-color 0.25s ease; }
.card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); text-decoration: none; }
.card .num { font-family: var(--font-mono); color: var(--accent); font-size: 0.78rem; }
.card p { color: var(--muted); font-size: 0.94rem; }
.card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.card .tags span, .tag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); padding: 3px 8px; border-radius: 6px; }
.card .cta { color: var(--accent); font-weight: 500; font-size: 0.92rem; }
.section { padding: 8px 0 56px; }
.section h2 { margin-bottom: 14px; }
.section p, .section li { color: var(--muted); font-size: 0.96rem; }
.section ul { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.section li::marker { color: var(--accent); }

/* Demo page */
.demo-head { padding: clamp(28px, 4vw, 48px) 0 20px; display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 14px 24px; }
.demo-head .intro { max-width: 70ch; }
.demo-head .intro p { color: var(--muted); margin-top: 10px; }
.demo-head .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.pager { display: flex; gap: 8px; }
.pager a { display: inline-flex; align-items: center; gap: 6px; padding: 9px 13px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text); font-size: 0.9rem; white-space: nowrap; }
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager svg { width: 15px; height: 15px; }
.layout { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 22px; align-items: start; padding-bottom: 64px; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 0; }
.panel > .inner { min-width: 0; }
.pager { flex-wrap: wrap; }
.heat-wrap { max-width: 100%; }
.panel > header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 18px; border-bottom: 1px solid var(--border); font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.panel > header b { color: var(--text); font-weight: 600; }
.panel > .inner { padding: 18px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface-2); color: var(--muted); font-family: var(--font-mono); font-size: 0.72rem; }
.badge.live { color: var(--pos); border-color: color-mix(in srgb, var(--pos) 40%, var(--border)); }

/* Shared demo widgets (class names used by the demo modules) */
.demo-desc { color: var(--muted); font-size: 0.92rem; margin-bottom: 14px; }
.demo-desc strong { color: var(--text); }
.demo-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.demo-input { flex: 1; min-width: 200px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-text); font-size: 0.95rem; padding: 10px 12px; }
.demo-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
textarea.demo-input { resize: vertical; min-height: 84px; }
.demo-panel { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 12px; }
.demo-panel h4 { color: var(--accent); font-family: var(--font-mono); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 10px; font-weight: 600; }
.slider-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.slider-row label { font-size: 0.86rem; color: var(--muted); min-width: 150px; }
.slider-row input[type="range"] { flex: 1; min-width: 120px; accent-color: var(--accent); }
.slider-val { color: var(--text); font-family: var(--font-mono); font-size: 0.82rem; min-width: 70px; text-align: right; }
.demo-canvas { width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--bg); display: block; }
.pill-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { background: var(--surface); border: 1px solid var(--border); color: var(--muted); font-family: var(--font-mono); font-size: 0.76rem; padding: 6px 11px; border-radius: 999px; cursor: pointer; transition: all .12s; }
.pill:hover, .pill.active { color: var(--accent-fg); border-color: var(--accent); background: var(--accent); }
button:not(.pill):not(.icon-btn) { font: inherit; }
.demo-row button, .demo-panel button:not(.pill) { background: var(--accent); color: var(--accent-fg); border: 1px solid var(--accent); border-radius: var(--radius-sm); padding: 9px 14px; font-weight: 600; font-size: 0.9rem; cursor: pointer; }
.demo-row button:hover, .demo-panel button:not(.pill):hover { filter: brightness(1.06); }

/* retrieval */
.result-doc { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; margin-bottom: 8px; background: var(--surface-2); }
.result-doc .score-bar { height: 5px; border-radius: 3px; background: var(--border); margin-top: 8px; overflow: hidden; }
.result-doc .score-fill { height: 100%; background: var(--accent); transition: width .5s ease; }
.result-doc .doc-title { color: var(--text); font-size: 0.92rem; font-weight: 600; display: flex; justify-content: space-between; gap: 12px; }
.result-doc .doc-score { color: var(--accent); font-family: var(--font-mono); font-size: 0.78rem; }
.result-doc .doc-text { color: var(--muted); font-size: 0.86rem; margin-top: 4px; }
.result-doc.top { border-color: var(--accent); }
.answer-box { border: 1px solid color-mix(in srgb, var(--accent) 50%, var(--border)); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); border-radius: var(--radius-sm); padding: 12px 14px; font-size: 0.95rem; }
.answer-box .label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; display: block; margin-bottom: 6px; }

/* attention heatmap */
.heat-table { border-collapse: separate; border-spacing: 2px; font-size: 0.74rem; margin: 0 auto; }
.heat-table td, .heat-table th { padding: 0; }
.heat-table th { color: var(--muted); font-weight: 500; font-family: var(--font-mono); padding: 4px 6px; white-space: nowrap; }
.heat-cell { width: 44px; height: 32px; text-align: center; color: #0B0F14; border-radius: 5px; font-family: var(--font-mono); transition: transform .1s; }
.heat-cell:hover { transform: scale(1.1); outline: 2px solid var(--accent); }
.heat-wrap { overflow-x: auto; padding: 6px 0; }

/* LoRA stats */
.stat-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat-tile { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; }
.stat-tile .t-label { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.stat-tile .t-value { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--text); margin-top: 2px; }
.stat-tile.highlight { border-color: var(--accent); }
.stat-tile.highlight .t-value { color: var(--accent); }
.bar-compare { display: flex; flex-direction: column; gap: 8px; }
.bar-compare .bc-row { display: grid; grid-template-columns: 130px 1fr 90px; align-items: center; gap: 10px; font-size: 0.86rem; }
.bar-compare .bc-label { color: var(--muted); }
.bar-compare .bc-track { background: var(--border); height: 10px; border-radius: 5px; overflow: hidden; }
.bar-compare .bc-fill { height: 100%; transition: width .4s ease; border-radius: 5px; }
.bar-compare .bc-val { color: var(--text); text-align: right; font-family: var(--font-mono); font-size: 0.8rem; }

/* sentiment */
.verdict { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.verdict-emoji { font-size: 1.8rem; }
.verdict-text { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: 0.02em; }
.verdict-text.pos { color: var(--pos); }
.verdict-text.neg { color: var(--neg); }
.verdict-text.neu { color: var(--accent); }
.prob-track { height: 10px; border-radius: 5px; background: linear-gradient(90deg, var(--neg), var(--border) 50%, var(--pos)); position: relative; margin: 8px 0 16px; }
.prob-marker { position: absolute; top: -5px; width: 4px; height: 20px; border-radius: 2px; background: var(--text); transition: left .3s ease; box-shadow: 0 0 0 2px var(--bg); }
.word-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.word-chip { font-family: var(--font-mono); font-size: 0.76rem; padding: 4px 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface-2); }
.word-chip.pos { border-color: color-mix(in srgb, var(--pos) 50%, var(--border)); color: var(--pos); }
.word-chip.neg { border-color: color-mix(in srgb, var(--neg) 50%, var(--border)); color: var(--neg); }
.word-chip.neu { color: var(--muted); }

/* theory */
.theory h3 { color: var(--text); font-size: 1rem; margin: 22px 0 8px; }
.theory h3:first-child { margin-top: 0; }
.theory p { color: var(--muted); font-size: 0.95rem; margin-bottom: 10px; }
.theory ul { color: var(--muted); font-size: 0.95rem; margin: 0 0 12px 20px; padding: 0; }
.theory li { margin-bottom: 5px; }
.theory strong { color: var(--text); }
.theory .katex-display { padding: 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow-x: auto; margin: 10px 0; }
.theory .katex { color: var(--text); font-size: 1.02em; }
.theory code { color: var(--accent); }
.callout { border-left: 3px solid var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--surface)); padding: 10px 14px; margin: 14px 0; font-size: 0.92rem; color: var(--text); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.site-footer { border-top: 1px solid var(--border); padding: 24px 0 40px; color: var(--muted); font-size: 0.85rem; font-family: var(--font-mono); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .card { transition: none; } }
@media (max-width: 1080px) { .layout { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .demo-head { display: block; } .pager { margin-top: 14px; } .pager a { white-space: normal; } }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .brand small, .nav-link.portfolio { display: none; }
  .bar-compare .bc-row { grid-template-columns: 100px 1fr 70px; }
  .slider-row label { min-width: 0; flex-basis: 100%; }
  .panel > .inner { padding: 14px; }
}