/* ═══════════════════════════════════════════
   BASE — Reset, body, typography, utilities, keyframes
   ═══════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

/* Subtle grid overlay in dark mode */
[data-theme="dark"] body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
}

/* ── Page system ── */
.page { display: none; min-height: 100vh; padding-top: 98px; }
.page.active { display: block; }

/* ── Utility / color helpers ── */
.up { color: var(--accent); }
.down { color: var(--red); }
.flat { color: var(--text3); }

.mv-green { color: var(--accent); }
.mv-amber { color: var(--amber); }
.mv-blue { color: var(--blue); }
.mv-text { color: var(--text); }

/* ── Animations ── */
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
@keyframes fadeUp { to { opacity:1; transform:none; } }
@keyframes askFadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@keyframes oiPulse { 0%,100%{border-left-color:var(--amber)} 50%{border-left-color:rgba(244,162,97,0.2)} }

.fade-in { opacity: 0; transform: translateY(16px); animation: fadeUp 0.5s ease forwards; }
.d1 { animation-delay: 0.1s; }
.d2 { animation-delay: 0.2s; }
.d3 { animation-delay: 0.3s; }
.d4 { animation-delay: 0.4s; }

/* ── Responsive breakpoints ── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 40px; }
  .terminal { display: none; }
  .stats-inner { grid-template-columns: repeat(3, 1fr); }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .dash-layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .metrics-row { grid-template-columns: 1fr 1fr; }
  .panel-grid { grid-template-columns: 1fr; }
  .ticker-row { grid-template-columns: 60px 1fr 70px 70px; }
  .ticker-row > *:last-child { display: none; }
  .oi-grid { grid-template-columns: 1fr; }
  .journal-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}

@media (max-width: 600px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .metrics-row { grid-template-columns: 1fr 1fr; }
  .level-cards { grid-template-columns: 1fr; }
  .tz-grid { grid-template-columns: 1fr; }
  .strat-cards { grid-template-columns: 1fr; }
  .hero { padding: 60px 20px 40px; }
  .section { padding: 56px 20px; }
  nav { padding: 0 16px; }
  .dash-main { padding: 16px; }
  .dash-greeting { font-size: 20px; }
}

@media (max-width: 480px) {
  .metrics-row { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .screener-summary { grid-template-columns: 1fr 1fr; }
  .plan-card { flex-direction: column; align-items: flex-start; gap: 12px; }
  .account-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; flex-wrap: nowrap; }
  .account-tabs::-webkit-scrollbar { display: none; }
}

@media (max-width: 640px) { .mop-grid { grid-template-columns: 1fr; } }
@media (max-width: 900px) { .futures-tab-grid { grid-template-columns: 1fr; } }

/* ── PWA safe areas: page content padding (nav rule lives in navigation.css) ── */
@supports (padding: env(safe-area-inset-top)) {
  .page {
    padding-top: calc(98px + env(safe-area-inset-top));
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }
}