:root {
  --bg: #14181f;
  --panel: rgba(15, 21, 33, 0.78);
  --panel-strong: rgba(18, 26, 40, 0.92);
  --line: rgba(163, 205, 255, 0.16);
  --line-strong: rgba(163, 205, 255, 0.28);
  --text: #f4f8ff;
  --muted: #9fb4cf;
  --accent: #ffe66d;
  --accent-2: #ff8b4a;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.35);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

body[data-theme="dawn"] {
  --bg: #fff8e6;
  --panel: rgba(255, 255, 255, 0.84);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --line: rgba(31, 61, 112, 0.12);
  --line-strong: rgba(31, 61, 112, 0.22);
  --text: #162033;
  --muted: #5a6c86;
  --accent: #d1a800;
  --accent-2: #e36e34;
  --shadow: 0 24px 70px rgba(48, 76, 132, 0.12);
}

* { 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;
  position: relative;
  overflow-x: hidden;
}

a { color: inherit; }
button, input, select { font: inherit; }

.ambient-layer,
.ambient-noise,
.ambient-grid,
.ambient-orb {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.ambient-layer { overflow: hidden; }
.ambient-orb { filter: blur(36px); opacity: 0.85; }
.orb-a { background: radial-gradient(circle, rgba(92, 242, 214, 0.35), transparent 58%); transform: translate(-18%, -12%); }
.orb-b { background: radial-gradient(circle, rgba(255, 179, 107, 0.3), transparent 60%); transform: translate(42%, 26%); }
.ambient-grid {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black 22%, transparent 82%);
}
.ambient-noise {
  opacity: 0.16;
  background-image:
    radial-gradient(circle at 15% 22%, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px),
    radial-gradient(circle at 72% 38%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px),
    radial-gradient(circle at 60% 80%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px);
}

.page-shell,
.simple-page { position: relative; z-index: 1; }
.page-shell {
  width: min(1260px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 48px;
}

.hero,
.panel,
.drawer-card,
.simple-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);
}

.hero { border-radius: var(--radius-xl); padding: 22px; }
.panel { border-radius: var(--radius-xl); padding: 20px; }

.hero-top,
.brand-wrap,
.hero-grid,
.section-head,
.section-head.tight,
.drawer-head,
.toggle-row,
.tabbar,
.pair-grid,
.display-topline,
.stack-row,
.site-footer,
.footer-brand {
  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: 56px; height: 56px; }

.hero-tag,
.eyebrow,
.display-label,
.result-caption {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--muted);
}

h1, h2, h3 {
  margin: 0;
  font-family: "Sora", sans-serif;
  letter-spacing: -0.04em;
}

.hero-grid { align-items: stretch; gap: 18px; margin-top: 24px; }
.hero-copy { flex: 1.25; }
.hero-side { flex: 0.9; display: grid; gap: 14px; }

.family-chip,
.ghost-chip,
.menu-btn,
.mini-toggle,
.swap-btn,
.hamburger-btn,
.icon-btn {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.family-chip,
.ghost-chip,
.menu-btn,
.mini-toggle,
.swap-btn {
  text-decoration: none;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.family-chip { padding: 10px 16px; margin-bottom: 14px; }
.hero-headline { font-size: clamp(2rem, 4vw, 3.6rem); max-width: 11ch; }
.hero-text { max-width: 58ch; color: var(--muted); line-height: 1.7; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.hero-badge,
.coverage-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.88rem;
}

.metric-card {
  border-radius: var(--radius-lg);
  padding: 20px;
  background:
    linear-gradient(135deg, rgba(92, 242, 214, 0.08), transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  min-height: 160px;
}

.metric-card strong,
.result-panel strong,
.life-ring-core span {
  display: block;
  font-family: "Sora", sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 10px 0;
}

.muted { color: var(--muted); }
.small-copy { font-size: 0.88rem; }

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.78fr);
  gap: 18px;
  margin-top: 18px;
}

.tabbar { gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.tab-btn {
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.tab-btn.active {
  color: #081018;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.tool-view { display: none; }
.tool-view.active { display: block; }

.calculator-shell,
.utility-card,
.stack-card,
.simple-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.display-shell,
.utility-card,
.stack-card,
.simple-card { padding: 18px; }
.display-expression {
  font-family: "Sora", sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  word-break: break-all;
  margin-top: 12px;
}
.display-result { font-size: 1rem; color: var(--muted); margin-top: 10px; }

.pad-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.scientific-pad { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.pad-btn {
  min-height: 62px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  font-family: "Sora", sans-serif;
  font-size: 1rem;
}
.pad-btn.operator { background: rgba(92, 242, 214, 0.1); }
.pad-btn.equal { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #071016; border-color: transparent; }
.pad-btn.wide { grid-column: span 2; }

.utility-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.72fr);
  gap: 14px;
}

.section-head { gap: 14px; margin-bottom: 18px; }
.section-head.tight { align-items: flex-start; }

.text-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  margin-top: 8px;
}

.field-label { display: block; margin-top: 14px; color: var(--muted); font-size: 0.92rem; }
.pair-grid { gap: 12px; align-items: end; margin-top: 14px; }
.pair-grid > div { flex: 1; }
.swap-btn { width: 48px; height: 48px; align-self: flex-end; }

.menu-btn,
.ghost-chip,
.mini-toggle,
.age-btn { cursor: pointer; }
.menu-btn,
.age-btn { padding: 13px 16px; min-height: 48px; }
.ghost-chip { padding: 10px 14px; }
.mini-toggle { padding: 10px 16px; }
.mini-toggle.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061018;
  border-color: transparent;
}

.result-panel {
  margin-top: 18px;
  border-radius: 20px;
  padding: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
}

.chip-cloud { display: flex; flex-wrap: wrap; gap: 10px; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.detail-card {
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.life-ring {
  width: min(260px, 100%);
  aspect-ratio: 1;
  margin: 10px auto 0;
  border-radius: 50%;
  padding: 18px;
  background: conic-gradient(from 180deg, var(--accent), var(--accent-2), var(--accent), rgba(255, 255, 255, 0.12));
}
.life-ring-core {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  background: var(--bg);
}

.panel-side { display: grid; gap: 16px; align-content: start; }
.side-section {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.history-list { display: grid; gap: 10px; }
.history-item {
  width: 100%;
  text-align: left;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
}
.history-item small { display: block; color: var(--muted); margin-top: 4px; }
.history-empty {
  color: var(--muted);
  border: 1px dashed var(--line);
  padding: 16px;
  border-radius: 16px;
}

.stack-card { display: grid; gap: 12px; }
.stack-row { justify-content: space-between; }
.stack-row strong { font-family: "Sora", sans-serif; }

.site-footer {
  margin-top: 18px;
  gap: 18px;
  flex-wrap: wrap;
  padding: 18px 20px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}
.footer-credit { margin: 0; }

.drawer {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 18px;
  background: rgba(4, 8, 14, 0.56);
}
.drawer.open { display: flex; }
.drawer-card { width: min(980px, 100%); border-radius: var(--radius-xl); padding: 20px; }
.drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.menu-panel {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}
.menu-panel-wide { grid-column: span 2; }
.menu-links { display: flex; flex-wrap: wrap; gap: 12px; }
.menu-links a,
.inline-link { color: var(--accent); }

.hamburger-btn,
.icon-btn {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  cursor: pointer;
}
.hamburger-btn {
  display: grid;
  place-items: center;
  gap: 5px;
}
.hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
}
.icon-btn { font-size: 1.8rem; }

.simple-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
}
.simple-card { width: min(760px, 100%); }

.translator-output {
  min-height: 160px;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "Sora", sans-serif;
}

@media (max-width: 980px) {
  .app-grid,
  .hero-grid,
  .utility-grid,
  .drawer-grid { grid-template-columns: 1fr; }
  .menu-panel-wide { grid-column: auto; }
}

@media (max-width: 720px) {
  .page-shell { width: min(100% - 18px, 100%); padding-top: 12px; }
  .hero,
  .panel,
  .drawer-card,
  .site-footer { border-radius: 24px; padding: 16px; }
  .hero-headline { font-size: 1.9rem; }
  .pad-grid { gap: 8px; }
  .pad-btn { min-height: 56px; }
  .pair-grid,
  .hero-top,
  .site-footer { flex-wrap: wrap; }
  .pair-grid > div,
  .swap-btn { width: 100%; }
  .swap-btn { height: 46px; }
  .detail-grid { grid-template-columns: 1fr; }
}