:root {
  --bg-primary: #0a0c10;
  --bg-secondary: #12161f;
  --bg-card: #181d28;
  --bg-card-hover: #202736;
  --border-color: #262f40;
  --border-focus: #e5a93b;
  --accent-gold: #e5a93b;
  --accent-gold-hover: #f5bc52;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --success: #10b981;
  --danger: #ef4444;
  --info: #3b82f6;
  --radius: 8px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-gold-hover);
}

/* Header & Nav */
header.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand-badge {
  background-color: var(--accent-gold);
  color: #000;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--bg-card);
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
}

.xp-pill {
  background: linear-gradient(135deg, #e5a93b, #d97706);
  color: #000;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
  flex: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-gold);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--text-secondary);
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

/* Cards & Grid */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  border-color: var(--border-focus);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

/* Progress bar */
.progress-bar-container {
  background-color: var(--bg-card);
  border-radius: 6px;
  height: 8px;
  width: 100%;
  overflow: hidden;
  margin: 0.75rem 0;
}

.progress-bar {
  background: linear-gradient(90deg, #e5a93b, #10b981);
  height: 100%;
  border-radius: 6px;
  transition: width 0.3s ease;
}

/* Form Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
}

/* Tables for Admin & Back Office */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--bg-secondary);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

table.data-table th {
  background-color: var(--bg-card);
  padding: 0.85rem 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

table.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

table.data-table tr:hover td {
  background-color: var(--bg-card-hover);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge-driver { background-color: #1e3a8a; color: #93c5fd; }
.badge-rider { background-color: #701a75; color: #f0abfc; }
.badge-success { background-color: #064e3b; color: #6ee7b7; }
.badge-warning { background-color: #78350f; color: #fde68a; }

/* Responsive */
@media (max-width: 768px) {
  header.app-header {
    padding: 1rem;
  }
  .container {
    padding: 1rem;
  }
  nav.main-nav {
    gap: 0.75rem;
  }
}