:root {
  --bg-color: #0f1115;
  --panel-bg: #1a1d24;
  --text-primary: #f0f2f5;
  --text-secondary: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #10b981;
  --danger: #ef4444;
  --border: #2e3340;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --glass-bg: rgba(26, 29, 36, 0.7);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
}

.container {
  width: 100%;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

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

.title-area h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

.title-area p { color: var(--text-secondary); font-size: 0.9rem; }

.user-info {
  text-align: right;
  font-size: 0.85rem;
  background: var(--panel-bg);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.user-info span { color: var(--accent); font-weight: 600; }
.user-info a { color: var(--danger); text-decoration: none; cursor: pointer; display: block; margin-top:0.25rem; }

/* Panels */
.panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
  display: none;
}

.panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.form-group {
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-group input, .form-group select {
  background: #000;
  border: 1px solid var(--border);
  color: white;
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent);
}

.btn {
  background-color: var(--accent);
  color: white;
  border: none;
  padding: 1rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn:hover { background-color: var(--accent-hover); transform: translateY(-2px); }
.btn-secondary { background-color: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-secondary:hover { background-color: var(--border); }

/* Plate Input */
.plate-input-wrapper {
  background: #facc15;
  border-radius: 8px;
  padding: 4px;
  display: flex;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}
.gb-badge {
  background: #1d4ed8; color: white; display: flex; flex-direction: column;
  align-items: center; justify-content: center; padding: 0.5rem;
  border-radius: 4px; font-weight: bold; font-size: 0.8rem; width: 50px;
}
#regInput {
  flex: 1; background: #facc15; border: none; padding: 1rem; font-size: 2rem;
  font-weight: 800; text-transform: uppercase; text-align: center; color: #111;
  outline: none; border-radius: 0 4px 4px 0; letter-spacing: 2px;
}

/* Result Card */
.result-card {
  margin-top: 1rem; border-top: 1px solid var(--border); padding-top: 1rem;
}
.vehicle-header {
  display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1.5rem;
}
.reg-display {
  background: #facc15; color: #111; padding: 0.5rem 1rem; border-radius: 6px; font-weight: 800;
}
.status-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.status-box { background: rgba(0,0,0,0.2); border-radius: 12px; padding: 1rem; border: 1px solid var(--border); }
.status-box.valid { border-left: 4px solid var(--success); }
.status-box.invalid { border-left: 4px solid var(--danger); }
.status-label { color: var(--text-secondary); font-size: 0.8rem; text-transform: uppercase; }
.status-value { font-size: 1.2rem; font-weight: 700; margin: 0.25rem 0; display: block; }
.status-box.valid .status-value { color: var(--success); }
.status-box.invalid .status-value { color: var(--danger); }
.status-date { font-size: 0.8rem; color: var(--text-secondary); }

.actions { display: flex; gap: 1rem; }

/* Saved List */
.saved-item {
  background: var(--panel-bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem; display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem;
}
.saved-info h4 { color: #facc15; }
.saved-loc { font-size: 0.8rem; color: var(--accent); }
.delete-btn { background: transparent; border: none; color: var(--text-secondary); cursor: pointer; padding: 0.5rem; }
.delete-btn:hover { color: var(--danger); }

/* Utilities */
.error-msg { background: rgba(239, 68, 68, 0.1); color: var(--danger); padding: 1rem; border-radius: 8px; margin-bottom: 1rem; display: none; }
.success-msg { background: rgba(16, 185, 129, 0.1); color: var(--success); padding: 1rem; border-radius: 8px; margin-bottom: 1rem; display: none; }
.admin-badge { background: var(--accent); color: white; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.7rem; margin-left: 0.5rem; }
.nav-tabs { display: flex; gap: 1rem; margin-bottom: 1rem; }
.tab { background: transparent; border: 1px solid var(--border); color: var(--text-secondary); padding: 0.5rem 1rem; border-radius: 8px; cursor: pointer; }
.tab.active { background: var(--accent); color: white; border-color: var(--accent); }

.loader { display: inline-block; width: 20px; height: 20px; border: 3px solid rgba(255,255,255,0.3); border-radius: 50%; border-top-color: white; animation: spin 1s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }