:root {
  --bg: #07090f;
  --bg-2: #0c1018;
  --surface: rgba(20, 27, 41, 0.72);
  --surface-solid: #141b29;
  --surface-2: rgba(33, 43, 64, 0.6);
  --border: rgba(120, 140, 180, 0.16);
  --border-strong: rgba(120, 140, 180, 0.32);
  --text: #eef3fb;
  --muted: #93a4c2;
  --faint: #64748b;
  --accent: #5b9cff;
  --accent-2: #8b5cff;
  --extractive: #2dd4bf;
  --abstractive: #f59e0b;
  --good: #34d399;
  --warn: #fbbf24;
  --error: #f87171;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.3);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(120, 140, 180, 0.14);
  padding: 0.12em 0.4em;
  border-radius: 5px;
  border: 1px solid var(--border);
}

.container { width: min(1180px, 92vw); margin: 0 auto; }

/* ---------- Animated background ---------- */
.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: radial-gradient(120% 80% at 50% -10%, #11182b 0%, var(--bg) 60%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: drift 22s ease-in-out infinite;
}

.blob-1 { width: 460px; height: 460px; background: #2b5cff; top: -120px; left: -80px; }
.blob-2 { width: 520px; height: 520px; background: #7c3aed; top: 10%; right: -160px; animation-delay: -6s; }
.blob-3 { width: 420px; height: 420px; background: #0ea5a4; bottom: -160px; left: 30%; animation-delay: -12s; }

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, 50px) scale(1.08); }
  66% { transform: translate(-30px, 20px) scale(0.95); }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 140, 180, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 140, 180, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 80%);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

.site-header.scrolled {
  background: rgba(7, 9, 15, 0.78);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  text-decoration: none;
}

.brand-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 11px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 20px rgba(91, 156, 255, 0.4);
}

.brand h1 { margin: 0; font-size: 1.1rem; letter-spacing: -0.01em; }
.brand p { margin: 0; color: var(--muted); font-size: 0.8rem; }

.nav { display: flex; gap: 0.4rem; }

.nav-link {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover { color: var(--text); background: var(--surface-2); }
.nav-link.active { color: var(--text); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  right: 0.85rem;
  bottom: 0.1rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: var(--surface);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faint);
}

.status-badge.ready { color: var(--good); border-color: rgba(52, 211, 153, 0.4); }
.status-badge.ready .status-dot { background: var(--good); box-shadow: 0 0 10px var(--good); }
.status-badge.loading { color: var(--abstractive); border-color: rgba(245, 158, 11, 0.4); }
.status-badge.loading .status-dot { background: var(--abstractive); animation: pulse 1.2s ease-in-out infinite; }
.status-badge.error { color: var(--error); border-color: rgba(248, 113, 113, 0.4); }
.status-badge.error .status-dot { background: var(--error); }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

/* ---------- Hero ---------- */
.hero { padding: 5rem 0 3rem; }

.hero-content { max-width: 760px; }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  font-weight: 600;
  color: var(--accent);
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface);
  margin-bottom: 1.5rem;
}

.hero-title {
  margin: 0 0 1.25rem;
  font-size: clamp(2.3rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.gradient-text {
  display: block;
  background: linear-gradient(110deg, #5b9cff, #8b5cff 45%, #2dd4bf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 2rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.75rem; }

.hero-stats { display: flex; gap: 2.5rem; }

.stat { display: flex; flex-direction: column; }
.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text), var(--muted));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-size: 0.82rem; color: var(--faint); text-transform: uppercase; letter-spacing: 0.1em; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s, border-color 0.18s;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 10px 30px rgba(91, 156, 255, 0.35);
}
.btn.primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(91, 156, 255, 0.5); }
.btn.primary:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.btn.ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn.ghost:hover { background: var(--surface-2); transform: translateY(-2px); }

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }

.section-head { max-width: 720px; margin-bottom: 2.75rem; }

.section-kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
}

.section-head h2 {
  margin: 0.6rem 0 0.75rem;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  letter-spacing: -0.02em;
  font-weight: 700;
}

.section-lead { color: var(--muted); font-size: 1.05rem; margin: 0; }

/* ---------- Pipeline diagram ---------- */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  padding: 2rem 1.5rem;
  margin-bottom: 2.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  overflow-x: auto;
}

.pipe-stage { display: flex; align-items: center; justify-content: center; }
.pipe-stage.models-fan { flex-direction: column; gap: 0.6rem; }

.pipe-node {
  position: relative;
  text-align: center;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface-solid);
  min-width: 130px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.pipe-node:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.pipe-node h4 { margin: 0.5rem 0 0.2rem; font-size: 0.95rem; }
.pipe-node p { margin: 0; font-size: 0.78rem; color: var(--muted); }
.pipe-icon { font-size: 1.4rem; }

.pipe-node.input { border-color: rgba(91, 156, 255, 0.5); }
.pipe-node.process { border-color: rgba(147, 164, 194, 0.5); }
.pipe-node.output { border-color: rgba(52, 211, 153, 0.5); }

.pipe-node.model {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-align: left;
  padding: 0.6rem 0.9rem;
  min-width: 200px;
}
.pipe-node.model h4 { margin: 0; }
.pipe-node.model.extractive { border-left: 3px solid var(--extractive); }
.pipe-node.model.abstractive { border-left: 3px solid var(--abstractive); }

.model-glyph {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--c, var(--accent));
  background: color-mix(in srgb, var(--c, var(--accent)) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--c, var(--accent)) 40%, transparent);
  flex-shrink: 0;
}

.pipe-connector {
  display: flex;
  align-items: center;
  min-width: 36px;
  flex-shrink: 0;
}
.pipe-connector span {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
  position: relative;
}
.pipe-connector span::after {
  content: "›";
  position: absolute;
  right: -2px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 1.1rem;
}

/* ---------- Arch cards ---------- */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.arch-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  backdrop-filter: blur(12px);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.arch-card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }

.arch-card-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
  background: rgba(91, 156, 255, 0.12);
  border: 1px solid rgba(91, 156, 255, 0.3);
}

.arch-card h3 { margin: 0 0 0.75rem; font-size: 1.1rem; }
.arch-card ul { margin: 0; padding-left: 1.1rem; color: var(--muted); font-size: 0.92rem; }
.arch-card li { margin-bottom: 0.4rem; }

/* ---------- Model cards ---------- */
.model-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 1.4rem;
}

.model-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.model-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}
.model-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 20px 50px color-mix(in srgb, var(--accent) 18%, transparent);
}
.model-card.open { border-color: color-mix(in srgb, var(--accent) 50%, transparent); }

.model-card-head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: inherit;
  font-family: inherit;
  text-align: left;
}

.model-card-head .model-glyph { width: 46px; height: 46px; font-size: 1rem; }
.model-card-titles { flex: 1; }
.model-card-titles h3 { margin: 0; font-size: 1.25rem; letter-spacing: -0.01em; }
.model-family { font-size: 0.8rem; color: var(--faint); }

.model-chevron {
  font-size: 1.3rem;
  color: var(--muted);
  transition: transform 0.3s;
  line-height: 1;
}
.model-card.open .model-chevron { transform: rotate(180deg); }

.model-card-meta { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 1rem 0 0.85rem; }

.model-tagline { margin: 0; color: var(--text); font-size: 0.95rem; font-weight: 500; }

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  white-space: nowrap;
}
.tag-extractive { color: var(--extractive); border-color: rgba(45, 212, 191, 0.4); background: rgba(45, 212, 191, 0.08); }
.tag-abstractive { color: var(--abstractive); border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.08); }

/* expandable body */
.model-card-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease, opacity 0.3s, margin 0.3s;
  opacity: 0;
  margin-top: 0;
}
.model-card-body > * { overflow: hidden; min-height: 0; }
.model-card.open .model-card-body {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 1.25rem;
}

.model-desc { margin: 0 0 1.2rem; color: var(--muted); font-size: 0.92rem; }

.model-section { margin-bottom: 1.2rem; }
.model-section h4 {
  margin: 0 0 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.model-section h4.good { color: var(--good); }
.model-section h4.warn { color: var(--warn); }

.model-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.model-steps li { display: flex; gap: 0.7rem; align-items: flex-start; font-size: 0.9rem; color: var(--text); }
.step-num {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

.model-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }

.pill-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pill {
  font-size: 0.78rem;
  padding: 0.28rem 0.6rem;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
}
.pill.good { border-color: rgba(52, 211, 153, 0.3); }
.pill.warn { border-color: rgba(251, 191, 36, 0.3); }

.model-facts {
  margin: 1.2rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.model-facts > div { display: flex; gap: 0.75rem; align-items: baseline; }
.model-facts dt { font-size: 0.78rem; color: var(--faint); min-width: 84px; text-transform: uppercase; letter-spacing: 0.06em; }
.model-facts dd { margin: 0; font-size: 0.88rem; color: var(--text); word-break: break-word; }

/* ---------- Try-it ---------- */
.try-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.upload-zone { display: flex; flex-direction: column; gap: 1.1rem; }

.upload-inner {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.upload-inner:hover, .upload-inner.dragover {
  border-color: var(--accent);
  background: rgba(91, 156, 255, 0.06);
}
.upload-inner.dragover { transform: scale(1.01); }

.upload-icon {
  display: inline-grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 0.75rem;
  font-size: 1.6rem;
  border-radius: 50%;
  color: var(--accent);
  background: rgba(91, 156, 255, 0.1);
  border: 1px solid rgba(91, 156, 255, 0.3);
}
.upload-title { margin: 0 0 0.3rem; font-size: 1.05rem; font-weight: 600; }

.upload-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

.file-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 0.88rem;
  font-family: var(--mono);
}
.file-meta::before { content: "📄"; }

/* loader */
.loading { margin-top: 1.5rem; color: var(--muted); text-align: center; }
.loader-track {
  height: 4px;
  width: 100%;
  border-radius: 4px;
  background: var(--surface-2);
  overflow: hidden;
  margin-bottom: 0.85rem;
}
.loader-bar {
  height: 100%;
  width: 40%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: indeterminate 1.3s ease-in-out infinite;
}
@keyframes indeterminate {
  0% { margin-left: -40%; }
  100% { margin-left: 100%; }
}

.alert { padding: 0.9rem 1.1rem; border-radius: 10px; margin-top: 1.25rem; font-size: 0.92rem; }
.alert.error { background: rgba(248, 113, 113, 0.12); border: 1px solid rgba(248, 113, 113, 0.4); color: var(--error); }

/* results */
.results { margin-top: 1.75rem; }
.results-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}
.results-meta .chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 0.85rem;
}
.results-meta .chip strong { color: var(--muted); font-weight: 600; }

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.2rem;
}

.result-card {
  position: relative;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: cardIn 0.45s ease both;
}
.result-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--accent, var(--accent));
}
.result-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }

@keyframes cardIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; }
.result-header-left { display: flex; align-items: center; gap: 0.7rem; }
.result-header h3 { margin: 0; font-size: 1.05rem; }
.result-tier { font-size: 0.75rem; color: var(--faint); }

.result-body {
  font-size: 0.92rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  flex: 1;
  color: var(--text);
  font-family: var(--mono);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  max-height: 240px;
  overflow-y: auto;
}
.result-body.empty { color: var(--faint); font-style: italic; }
.result-body.method-list {
  font-family: var(--font);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 320px;
}
.method-summary {
  border-left: 2px solid var(--accent, var(--border));
  padding-left: 0.65rem;
}
.method-summary.empty-method .method-text {
  color: var(--faint);
  font-style: italic;
}
.method-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent, var(--muted));
  font-family: var(--mono);
  margin-bottom: 0.2rem;
}
.method-text {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text);
}

.result-footer { display: flex; justify-content: space-between; align-items: center; }
.result-latency {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: var(--mono);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.result-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}
.result-badge.fastest { color: var(--good); background: rgba(52, 211, 153, 0.12); border: 1px solid rgba(52, 211, 153, 0.35); }
.result-badge.longest { color: var(--accent); background: rgba(91, 156, 255, 0.12); border: 1px solid rgba(91, 156, 255, 0.35); }

.copy-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.75rem;
  padding: 0.3rem 0.6rem;
  border-radius: 7px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  font-family: inherit;
}
.copy-btn:hover { color: var(--text); border-color: var(--border-strong); }
.copy-btn.copied { color: var(--good); border-color: rgba(52, 211, 153, 0.4); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 3rem;
  padding: 2.5rem 0;
  text-align: center;
  color: var(--faint);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

.hidden { display: none !important; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav { display: none; }
  .pipeline { flex-direction: column; align-items: stretch; }
  .pipe-connector { min-height: 28px; justify-content: center; }
  .pipe-connector span { width: 2px; height: auto; min-height: 24px; background: linear-gradient(180deg, transparent, var(--border-strong), transparent); }
  .pipe-connector span::after { content: "⌄"; right: 50%; transform: translateX(50%); top: auto; bottom: -4px; }
  .pipe-stage.models-fan { flex-direction: column; }
}

@media (max-width: 560px) {
  .hero-stats { gap: 1.5rem; }
  .model-cols { grid-template-columns: 1fr; }
  .upload-bar { flex-direction: column; align-items: stretch; }
  .btn.primary { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  .reveal { opacity: 1; transform: none; }
}