:root {
  --bg: #070b16;
  --panel: #10182a;
  --panel-2: #151f35;
  --text: #f6f8ff;
  --muted: #a9b4cc;
  --line: rgba(255,255,255,.11);
  --accent: #8b7dff;
  --accent-2: #38d6c8;
  --warning: #ffcc66;
  --danger: #ff7a90;
  --success: #61e6a5;
  --shadow: 0 24px 80px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 15% -10%, rgba(111,88,255,.22), transparent 38%), var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px clamp(20px,5vw,72px); border-bottom: 1px solid var(--line); background: rgba(7,11,22,.82); backdrop-filter: blur(18px); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; background: linear-gradient(135deg,var(--accent),var(--accent-2)); color: #07101a; }
nav { display: flex; gap: 24px; color: var(--muted); font-size: .93rem; }
nav a:hover { color: var(--text); }
main { overflow: hidden; }
.hero { min-height: 680px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(40px,7vw,110px); padding: 88px clamp(20px,7vw,110px) 60px; }
.eyebrow { margin: 0 0 12px; color: var(--accent-2); text-transform: uppercase; letter-spacing: .16em; font-size: .75rem; font-weight: 800; }
h1 { max-width: 820px; margin: 0; font-size: clamp(3rem,6.3vw,6.2rem); line-height: .98; letter-spacing: -.055em; }
h1 span { color: var(--accent); }
.lead { max-width: 700px; margin: 28px 0; color: var(--muted); font-size: clamp(1rem,1.5vw,1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; color: var(--text); cursor: pointer; font-weight: 800; transition: .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:disabled { opacity: .55; cursor: wait; transform: none; }
.button.primary { border-color: transparent; background: linear-gradient(135deg,var(--accent),#6955f5); box-shadow: 0 10px 35px rgba(107,85,245,.28); }
.button.secondary { background: rgba(255,255,255,.045); }
.button.full { width: 100%; }
.status-card { display: inline-flex; align-items: center; gap: 12px; margin-top: 26px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.04); }
.status-card div { display: grid; }
.status-card small { color: var(--muted); }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 20px var(--accent-2); }
#model-status[data-tone="warning"] { color: var(--warning); }
#model-status[data-tone="error"] { color: var(--danger); }
#model-status[data-tone="success"] { color: var(--success); }
.hero-visual { position: relative; min-height: 430px; display: grid; place-items: center; }
.embedding-card { position: absolute; width: min(380px,80%); min-height: 155px; padding: 26px; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(145deg,rgba(255,255,255,.11),rgba(255,255,255,.035)); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.embedding-card span { display: inline-block; margin-bottom: 25px; padding: 5px 9px; border-radius: 7px; background: rgba(255,255,255,.08); color: var(--muted); font-size: .72rem; font-weight: 800; letter-spacing: .14em; }
.image-card { top: 15px; left: 8%; transform: rotate(-4deg); }
.text-card { right: 4%; bottom: 8px; transform: rotate(4deg); font-size: 1.15rem; }
.vector { color: var(--accent-2); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: 1.18rem; }
.similarity-line { position: absolute; width: 52%; height: 1px; background: linear-gradient(90deg,transparent,var(--accent),transparent); transform: rotate(-34deg); }
.similarity-line span { position: absolute; left: 50%; top: -14px; transform: translateX(-50%); padding: 4px 8px; border-radius: 99px; background: var(--bg); color: var(--muted); font-size: .7rem; white-space: nowrap; }
.stat-strip { display: grid; grid-template-columns: repeat(4,1fr); margin: 0 clamp(20px,7vw,110px); border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.035); }
.stat-strip div { display: grid; padding: 24px; border-right: 1px solid var(--line); }
.stat-strip div:last-child { border-right: 0; }
.stat-strip strong { font-size: 1.75rem; }
.stat-strip span { color: var(--muted); font-size: .86rem; }
.notice { margin: 24px clamp(20px,7vw,110px) 0; padding: 18px 20px; border: 1px solid rgba(255,204,102,.25); border-radius: 16px; background: rgba(255,204,102,.07); color: #eadfc1; }
.demo-section, .content-section { padding: 100px clamp(20px,7vw,110px); }
.section-heading { max-width: 850px; margin-bottom: 34px; }
h2 { margin: 0; font-size: clamp(2rem,4vw,3.8rem); line-height: 1.05; letter-spacing: -.04em; }
.tabs { display: inline-flex; gap: 5px; padding: 5px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.035); }
.tab-button { border: 0; border-radius: 10px; padding: 11px 16px; background: transparent; color: var(--muted); cursor: pointer; font-weight: 800; }
.tab-button[aria-selected="true"] { background: var(--panel-2); color: var(--text); box-shadow: 0 8px 24px rgba(0,0,0,.22); }
.tab-panel { margin-top: 26px; }
.control-card, .prediction-card { border: 1px solid var(--line); border-radius: 22px; background: rgba(16,24,42,.78); box-shadow: var(--shadow); }
.control-card { padding: 24px; }
.control-card > label { display: block; margin-bottom: 9px; font-weight: 800; }
.search-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input[type="text"], textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; background: rgba(3,7,15,.65); color: var(--text); padding: 13px 15px; outline: none; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(139,125,255,.14); }
.sample-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 14px; color: var(--muted); font-size: .86rem; }
.sample-row button { border: 1px solid var(--line); border-radius: 99px; padding: 6px 10px; background: rgba(255,255,255,.04); color: var(--muted); cursor: pointer; }
.range-row { display: grid; grid-template-columns: 140px 1fr; align-items: center; gap: 18px; margin-top: 20px; color: var(--muted); }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.message { margin-top: 15px; padding: 12px 14px; border-radius: 10px; font-size: .9rem; }
.message.warning { background: rgba(255,204,102,.1); color: var(--warning); }
.message.error { background: rgba(255,122,144,.1); color: var(--danger); }
.message.info { background: rgba(56,214,200,.1); color: var(--accent-2); }
.result-summary { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin: 20px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: var(--line); }
.result-summary div { display: grid; padding: 15px 18px; background: var(--panel); }
.result-summary span, .prediction-heading span { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; }
.results-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.result-card { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); transition: .22s ease; }
.result-card:hover { transform: translateY(-4px); border-color: rgba(139,125,255,.45); }
.image-wrap { position: relative; aspect-ratio: 4/3; overflow: hidden; background: #0b1020; }
.image-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.rank-badge { position: absolute; top: 12px; left: 12px; padding: 6px 9px; border-radius: 9px; background: rgba(7,11,22,.84); font-weight: 900; }
.result-body { padding: 16px; }
.score-row, .meta-row { display: flex; justify-content: space-between; gap: 12px; }
.score-row strong { color: var(--accent-2); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; }
.score-row span, .meta-row { color: var(--muted); font-size: .78rem; }
.result-body p { min-height: 48px; margin: 13px 0; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tag-list span { padding: 4px 7px; border-radius: 7px; background: rgba(255,255,255,.055); color: var(--muted); font-size: .72rem; }
.classification-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 20px; }
.upload-zone { position: relative; min-height: 270px; display: grid; place-items: center; margin-bottom: 18px; overflow: hidden; border: 1px dashed rgba(255,255,255,.2); border-radius: 16px; background: rgba(0,0,0,.18); text-align: center; }
.upload-zone input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; z-index: 2; }
#upload-placeholder { display: grid; gap: 6px; color: var(--muted); }
#upload-placeholder strong { color: var(--text); }
#upload-preview { width: 100%; height: 100%; object-fit: contain; max-height: 360px; }
textarea { resize: vertical; margin-bottom: 14px; }
.prediction-card { padding: 24px; }
.prediction-heading { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.prediction-heading div { display: grid; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 11px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; }
td small { display: block; color: var(--muted); }
.empty-cell { height: 180px; text-align: center; color: var(--muted); }
.fine-print, .section-note { color: var(--muted); font-size: .86rem; }
.architecture-grid, .metrics-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.architecture-grid article, .metrics-grid article { padding: 24px; border: 1px solid var(--line); border-radius: 19px; background: rgba(255,255,255,.035); }
.architecture-grid article > span { color: var(--accent); font-weight: 900; }
.architecture-grid h3 { margin: 40px 0 8px; font-size: 1.25rem; }
.architecture-grid p, .metrics-grid p, .two-column p { color: var(--muted); }
.muted-section { background: rgba(255,255,255,.025); border-block: 1px solid var(--line); }
.metrics-grid article { display: grid; }
.metrics-grid strong { font-size: 1.3rem; }
.metrics-grid span { margin: 20px 0 5px; color: var(--warning); font-weight: 800; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
footer { display: flex; justify-content: space-between; gap: 30px; padding: 34px clamp(20px,7vw,110px); border-top: 1px solid var(--line); color: var(--muted); }
footer div { display: flex; gap: 18px; }
footer div:first-child { display: grid; gap: 2px; }
footer strong { color: var(--text); }
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-visual { min-height: 360px; }
  .results-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .classification-layout, .two-column { grid-template-columns: 1fr; }
  .architecture-grid, .metrics-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 650px) {
  nav { display: none; }
  .hero { padding-top: 62px; }
  .hero-visual { min-height: 310px; }
  .stat-strip { grid-template-columns: repeat(2,1fr); }
  .stat-strip div:nth-child(2) { border-right: 0; }
  .stat-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .search-row { grid-template-columns: 1fr; }
  .result-summary, .results-grid, .architecture-grid, .metrics-grid { grid-template-columns: 1fr; }
  .range-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}