:root {
  --bg: #11161d;
  --panel: rgba(16, 22, 31, 0.82);
  --panel-strong: rgba(18, 27, 39, 0.95);
  --line: rgba(177, 214, 255, 0.12);
  --line-strong: rgba(177, 214, 255, 0.24);
  --text: #f6f8fb;
  --muted: #a8b8ca;
  --accent: #79f0d2;
  --accent-2: #ffd07a;
  --danger: #ff8f7f;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.3);
}

body[data-theme="paper"] {
  --bg: #f4ecd9;
  --panel: rgba(255, 251, 243, 0.88);
  --panel-strong: rgba(255, 251, 243, 0.98);
  --line: rgba(42, 60, 89, 0.12);
  --line-strong: rgba(42, 60, 89, 0.22);
  --text: #18212e;
  --muted: #5f7089;
  --accent: #148568;
  --accent-2: #d6932d;
  --danger: #be4638;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: "Noto Sans Devanagari", sans-serif;
  overflow-x: hidden;
  position: relative;
}
button, input, select { font: inherit; }
a { color: inherit; }

.ambient-layer, .ambient-noise, .ambient-grid, .ambient-orb {
  position: fixed;
  inset: 0;
  pointer-events: none;
}
.ambient-layer { overflow: hidden; }
.ambient-orb { filter: blur(40px); opacity: 0.82; }
.orb-a { background: radial-gradient(circle, rgba(121, 240, 210, 0.28), transparent 58%); transform: translate(-18%, -16%); }
.orb-b { background: radial-gradient(circle, rgba(255, 208, 122, 0.28), transparent 56%); transform: translate(38%, 22%); }
.ambient-grid {
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(circle at center, black 24%, transparent 82%);
}
.ambient-noise {
  opacity: .14;
  background-image: radial-gradient(circle at 14% 21%, rgba(255,255,255,.16) 0 1px, transparent 1px), radial-gradient(circle at 70% 35%, rgba(255,255,255,.14) 0 1px, transparent 1px);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(1260px, calc(100% - 24px));
  margin: 0 auto;
  padding: 20px 0 40px;
}

.hero, .panel, .drawer-card {
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  background: linear-gradient(180deg, var(--panel), var(--panel-strong));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 30px;
}

.hero { padding: 22px; }
.panel { padding: 20px; }

.hero-top, .brand-wrap, .hero-grid, .section-head, .drawer-head, .tabbar, .capture-actions, .site-footer, .footer-brand, .stack-row, .control-grid {
  display: flex;
  align-items: center;
}
.hero-top, .section-head, .drawer-head, .site-footer { justify-content: space-between; }
.brand-wrap, .footer-brand { gap: 14px; }
.brand-logo, .footer-brand img { width: 58px; height: 58px; }
.hero-tag, .eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .72rem;
  color: var(--muted);
}
h1, h2, h3 {
  margin: 0;
  font-family: "Sora", sans-serif;
  letter-spacing: -.04em;
}

.hero-grid { align-items: stretch; gap: 18px; margin-top: 22px; }
.hero-copy { flex: 1.2; }
.hero-side { flex: .86; display: grid; gap: 14px; }
.family-chip, .menu-btn, .tab-btn, .page-thumb, .hamburger-btn, .icon-btn {
  border: 1px solid var(--line-strong);
  background: rgba(255,255,255,.04);
  color: var(--text);
}
.family-chip, .menu-btn, .tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
}
.family-chip { padding: 10px 16px; margin-bottom: 14px; }
.hero-headline { font-size: clamp(2rem, 4vw, 3.5rem); max-width: 12ch; }
.hero-text { max-width: 60ch; color: var(--muted); line-height: 1.7; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.hero-badge {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  font-size: .88rem;
}

.metric-card, .utility-card, .stack-card, .history-item, .empty-card, .page-thumb {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
}
.metric-card, .utility-card, .stack-card { padding: 18px; }
.metric-card strong {
  display: block;
  margin: 10px 0;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
}
.muted { color: var(--muted); }
.small-copy, .footnote { font-size: .9rem; }

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, .8fr);
  gap: 18px;
  margin-top: 18px;
}
.tabbar { gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.tab-btn { padding: 12px 16px; cursor: pointer; }
.tab-btn.active, .menu-btn:not(.ghost-btn):not(.danger-btn) {
  color: #091116;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  font-weight: 700;
}
.tool-view { display: none; }
.tool-view.active { display: block; }
.field-label { display: block; margin-bottom: 8px; color: var(--muted); font-size: .9rem; }
.text-input, select.text-input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  color: var(--text);
}
input[type="range"] { width: 100%; accent-color: var(--accent); }
.capture-actions { gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.capture-actions.compact { margin-top: 16px; }
.age-btn { min-height: 48px; padding: 0 18px; cursor: pointer; }
.ghost-btn { background: rgba(255,255,255,.06); }
.danger-btn { border-color: rgba(255,143,127,.42); color: var(--danger); }

.camera-shell, .preview-shell {
  position: relative;
  margin-top: 18px;
  min-height: 360px;
  border-radius: 26px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255,255,255,.03), rgba(255,255,255,.01)), #0b1016;
}
.camera-shell video, .preview-shell canvas {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.camera-overlay, .preview-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.camera-overlay { justify-content: space-between; padding: 22px; pointer-events: none; }
.scan-frame {
  width: min(100%, 560px);
  aspect-ratio: 3 / 4;
  border-radius: 24px;
  border: 2px dashed rgba(255,255,255,.42);
  box-shadow: inset 0 0 0 999px rgba(11,16,22,.18);
}
.preview-empty { color: var(--muted); padding: 20px; text-align: center; }
.control-grid { gap: 16px; align-items: end; margin-top: 16px; }
.control-grid > div { flex: 1; }
.ocr-grid { margin-top: 18px; }
.ocr-actions {
  display: flex;
  gap: 10px;
  align-items: end;
  justify-content: flex-end;
}
.ocr-panel { margin-top: 18px; }
.ocr-output {
  min-height: 180px;
  padding: 14px 16px;
  resize: vertical;
}
.result-panel {
  margin-top: 16px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  line-height: 1.6;
}
.page-strip, .history-list { display: grid; gap: 12px; }
.page-thumb, .history-item {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 10px;
  text-align: left;
  cursor: pointer;
}
.page-thumb img, .history-item img {
  width: 100%;
  height: 88px;
  border-radius: 18px;
  object-fit: cover;
}
.page-thumb span { font-family: "Sora", sans-serif; font-size: 1rem; }
.page-thumb.active { border-color: var(--accent); box-shadow: 0 0 0 1px rgba(121,240,210,.3); }
.history-item strong { display: block; margin-top: 2px; font-family: "Sora", sans-serif; }
.history-item p, .history-item span { margin: 6px 0 0; color: var(--muted); font-size: .9rem; }
.empty-card { padding: 18px; color: var(--muted); text-align: center; }
.stack-row {
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.stack-row:last-child { border-bottom: none; }

.site-footer {
  margin-top: 18px;
  gap: 18px;
  padding: 18px 20px;
  border-radius: 30px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
}
.footer-credit { margin: 0; color: var(--muted); }

.drawer {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  padding: 16px;
  background: rgba(4,7,11,.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.drawer.open { display: block; }
.drawer-card { width: min(540px, 100%); margin-left: auto; padding: 20px; }
.drawer-grid { display: grid; gap: 14px; margin-top: 18px; }
.menu-panel {
  padding: 16px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
}
.menu-panel h3 { margin-top: 4px; margin-bottom: 12px; }
.menu-panel-wide { grid-column: 1 / -1; }
.menu-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.menu-links a {
  min-height: 44px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  text-decoration: none;
}
.menu-btn { min-height: 46px; padding: 0 16px; cursor: pointer; }
.hamburger-btn, .icon-btn {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}
.hamburger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 2px 0;
  background: currentColor;
  border-radius: 999px;
}

@media (max-width: 1080px) {
  .app-grid { grid-template-columns: 1fr; }
  .hero-grid { flex-direction: column; }
}

@media (max-width: 720px) {
  .page-shell { width: min(100% - 16px, 100%); padding-top: 12px; padding-bottom: 28px; }
  .hero, .panel, .drawer-card, .site-footer { border-radius: 26px; }
  .hero-headline { max-width: none; font-size: 2.2rem; }
  .hero-top, .control-grid, .site-footer { flex-direction: column; align-items: stretch; }
  .ocr-actions { justify-content: stretch; }
  .capture-actions { display: grid; }
  .capture-actions .menu-btn, .menu-links a { width: 100%; }
  .ocr-actions .menu-btn { width: 100%; }
  .menu-links { grid-template-columns: 1fr; }
  .camera-shell, .preview-shell { min-height: 280px; }
  .page-thumb, .history-item { grid-template-columns: 72px minmax(0, 1fr); }
  .page-thumb img, .history-item img { height: 72px; }
}