:root {
  color-scheme: dark;
  --bg: #071426;
  --panel: #0d1f36;
  --card: #132b49;
  --text: #f8fafc;
  --muted: #b8c4d6;
  --gold: #d7b46a;
  --line: rgba(255,255,255,.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  font-family: Tahoma, Arial, sans-serif;
  background: radial-gradient(circle at top, #102846 0, var(--bg) 48%);
  color: var(--text);
  line-height: 1.75;
}
a { color: inherit; }
.app-header, .app-footer, main {
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: 18px;
}
.app-header {
  display: grid;
  gap: 16px;
  padding-top: 28px;
}
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2rem, 8vw, 3.6rem); margin-bottom: 8px; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1rem; color: var(--gold); }
.subtitle, .hint, .eyebrow { color: var(--muted); }
.eyebrow { letter-spacing: .03em; margin-bottom: 4px; }
.primary-link, .links-list a, .links-list span {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 10px 14px;
  text-decoration: none;
  background: rgba(215, 180, 106, .12);
}
.primary-link { color: var(--gold); font-weight: 700; }
.panel-section {
  margin: 16px 0;
  padding: 18px;
  background: rgba(13, 31, 54, .86);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 16px 60px rgba(0,0,0,.22);
}
.section-title {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
}
.mode-pill, .chip-row span {
  border: 1px solid rgba(215,180,106,.36);
  color: var(--gold);
  background: rgba(215,180,106,.08);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: .85rem;
}
.card-grid, .quick-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
}
.mini-card, .info-card, .chart-card, .result-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
}
.mini-card { min-height: 82px; display: flex; align-items: center; font-weight: 700; }
.chart-card { margin-top: 12px; }
canvas { width: 100%; height: auto; display: block; direction: ltr; }
.compact-list { padding: 0 18px 0 0; margin-bottom: 0; }
.chip-row, .links-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tool-form { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); }
.tool-form label { display: grid; gap: 6px; color: var(--muted); }
.tool-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 10px;
  font: inherit;
}
.result-box { margin-top: 12px; color: var(--gold); font-weight: 700; }
.app-footer { color: var(--muted); font-size: .92rem; padding-bottom: 32px; }
.privacy-account-card p { color: var(--muted); }
.privacy-cta { margin-top: 6px; }

@media (min-width: 720px) {
  .app-header { grid-template-columns: 1fr auto; align-items: center; }
}
@media (max-width: 420px) {
  .app-header, .app-footer, main { padding-left: 12px; padding-right: 12px; }
  .panel-section { border-radius: 18px; padding: 14px; }
}