/* ═══════════════════════════════════════════════════════════════
   EV-Manual.com Brand Site Design System
   Based on Logo-05-flat: Purple-Blue-Teal gradient (#7C4DFF → #448AFF → #00BCD4)
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Logo-05-flat Brand Colors */
  --evm-purple: #7C4DFF;
  --evm-blue: #448AFF;
  --evm-teal: #00BCD4;
  --evm-gold: #FFD700;
  --evm-gradient: linear-gradient(135deg, #7C4DFF 0%, #448AFF 50%, #00BCD4 100%);
  --evm-gradient-soft: linear-gradient(135deg, rgba(124,77,255,0.15) 0%, rgba(68,138,255,0.15) 50%, rgba(0,188,212,0.15) 100%);

  /* Dark Theme */
  --bg-primary: #0B1120;
  --bg-secondary: #111827;
  --bg-card: #151E2E;
  --bg-hover: #1E293B;
  --border-color: rgba(148, 163, 184, 0.12);

  /* Text */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Spacing & Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 30px rgba(124, 77, 255, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; }
h1 { font-size: 3rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

/* ── Gradient Text ──────────────────────────────────────────── */
.gradient-text {
  background: var(--evm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-md);
  font-size: 0.95rem; font-weight: 600; cursor: pointer; border: none;
  transition: all 0.2s ease;
}
.btn-primary {
  background: var(--evm-gradient);
  color: white; box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124,77,255,0.35); }
.btn-secondary {
  background: var(--bg-card); color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-outline {
  background: transparent; color: var(--text-primary);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn-outline:hover { border-color: var(--evm-purple); background: rgba(124,77,255,0.1); }

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all 0.25s ease;
}
.card:hover {
  border-color: rgba(124, 77, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* ── Tags ───────────────────────────────────────────────────── */
.tag {
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: 20px;
  font-size: 0.8rem; font-weight: 600;
}
.tag-purple { background: rgba(124,77,255,0.15); color: var(--evm-purple); }
.tag-blue { background: rgba(68,138,255,0.15); color: var(--evm-blue); }
.tag-teal { background: rgba(0,188,212,0.15); color: var(--evm-teal); }
.tag-gold { background: rgba(255,215,0,0.15); color: var(--evm-gold); }

/* ── Search ─────────────────────────────────────────────────── */
.search-box {
  position: relative; max-width: 600px; width: 100%;
}
.search-box input {
  width: 100%; padding: 14px 20px 14px 48px;
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-xl); color: var(--text-primary); font-size: 1rem;
  transition: all 0.2s;
}
.search-box input:focus {
  outline: none; border-color: var(--evm-purple);
  box-shadow: 0 0 0 4px rgba(124,77,255,0.15);
}
.search-box .search-icon {
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 1.1rem;
}

/* ── Grid System ────────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-lg); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(124,77,255,0.2); }
  50% { box-shadow: 0 0 40px rgba(124,77,255,0.4); }
}
.animate-float { animation: float 4s ease-in-out infinite; }
.animate-pulse { animation: pulse-glow 3s ease-in-out infinite; }

/* ── Utility ────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-lg); }
.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.flex { display: flex; }
.flex-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.wrap { flex-wrap: wrap; }