* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(245, 158, 11, .20), transparent 34%),
    radial-gradient(circle at top right, rgba(185, 28, 28, .16), transparent 32%),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Arial, sans-serif;
}

body { padding-bottom: calc(86px + env(safe-area-inset-bottom)); }

.app {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 18px 16px 26px;
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(72px + env(safe-area-inset-bottom));
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.86);
  border-top: 1px solid rgba(229,231,235,.9);
  backdrop-filter: blur(22px);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  z-index: 10;
}

.nav-button {
  border: 0;
  background: transparent;
  color: #6b7280;
  font-size: 20px;
  border-radius: 18px;
  padding: 6px 4px;
  font-weight: 800;
}

.nav-button span {
  display: block;
  font-size: 11px;
  margin-top: 2px;
}

.nav-button.active {
  color: var(--accent);
  background: #fee2e2;
}

.day-header {
  padding: 20px;
  border-radius: var(--radius-xl);
  color: white;
  background: linear-gradient(135deg, #1e293b, #991b1b);
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}

.day-header .date {
  opacity: .8;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: .12em;
}

.day-header h2 {
  margin: 6px 0 2px;
  font-size: 34px;
  letter-spacing: -0.05em;
}

.day-header p { margin: 0; opacity: .9; }

.version {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  margin: 18px 0;
}

@media (prefers-color-scheme: dark) {
  .bottom-nav { background: rgba(15,23,42,.86); }
  .mini-card, .quick-card { background: rgba(15, 23, 42, .55); }
}