/**
 * Ranchi Smart Parking System - Main Stylesheet
 * =============================================
 * Theme Colors:
 *   Primary BG:  #020617 (Slate 950)
 *   Card BG:     #0F172A (Slate 900)
 *   Accent:      #06B6D4 (Cyan 500)
 *   Text:        #F8FAFC (Slate 50)
 *   Available:   #22C55E (Green)
 *   Occupied:    #EF4444 (Red)
 *   Reserved:    #EAB308 (Yellow)
 */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    --bg-primary: #020617;
    --bg-card: #0F172A;
    --bg-card-hover: #1E293B;
    --accent: #06B6D4;
    --accent-hover: #0891B2;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --slot-available: #22C55E;
    --slot-occupied: #EF4444;
    --slot-reserved: #EAB308;
    --border-subtle: rgba(6, 182, 212, 0.15);
    --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ============================================
   Global Reset & Base
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Selection
   ============================================ */
::selection {
    background-color: rgba(6, 182, 212, 0.3);
    color: var(--text-primary);
}

/* ============================================
   Scrollbar (WebKit)
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ============================================
   Navbar Overrides
   ============================================ */
.navbar-dark-custom {
    background-color: var(--bg-card) !important;
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(10px);
}

.navbar-dark-custom .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.navbar-dark-custom .nav-link:hover,
.navbar-dark-custom .nav-link:focus {
    color: var(--accent) !important;
    background-color: rgba(6, 182, 212, 0.08);
}

.navbar-dark-custom .nav-link.active {
    color: var(--accent) !important;
}

.navbar-dark-custom .dropdown-menu {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow);
}

.navbar-dark-custom .dropdown-item {
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    margin: 2px 6px;
    padding: 0.45rem 0.75rem;
}

.navbar-dark-custom .dropdown-item:hover {
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--text-primary);
}

/* ============================================
   Cards
   ============================================ */
.card-dark {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.card-dark:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.card-dark .card-body {
    padding: 1.5rem;
}

.card-dark .card-title {
    color: var(--text-primary);
    font-weight: 600;
}

.card-dark .card-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   Buttons
   ============================================ */
.btn-accent {
    background-color: var(--accent);
    color: var(--bg-primary);
    border: none;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-accent:active {
    transform: translateY(0);
}

.btn-outline-accent {
    background-color: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    font-weight: 600;
    padding: 0.55rem 1.45rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.btn-outline-accent:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

/* ============================================
   Parking Slot Status Badges
   ============================================ */
.slot-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.slot-available {
    background-color: rgba(34, 197, 94, 0.15);
    color: var(--slot-available);
    border-color: rgba(34, 197, 94, 0.3);
}

.slot-available:hover {
    background-color: rgba(34, 197, 94, 0.25);
    border-color: var(--slot-available);
    transform: scale(1.05);
}

.slot-occupied {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--slot-occupied);
    border-color: rgba(239, 68, 68, 0.3);
    cursor: not-allowed;
}

.slot-reserved {
    background-color: rgba(234, 179, 8, 0.15);
    color: var(--slot-reserved);
    border-color: rgba(234, 179, 8, 0.3);
    cursor: not-allowed;
}

/* ============================================
   Forms (Dark Theme)
   ============================================ */
.form-dark .form-control,
.form-dark .form-select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.65rem 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-dark .form-control:focus,
.form-dark .form-select:focus {
    background-color: var(--bg-primary);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.form-dark .form-control::placeholder {
    color: var(--text-muted);
}

.form-dark .form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

/* ============================================
   Status Badges (General)
   ============================================ */
.badge-available {
    background-color: rgba(34, 197, 94, 0.15);
    color: var(--slot-available);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-occupied {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--slot-occupied);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-reserved {
    background-color: rgba(234, 179, 8, 0.15);
    color: var(--slot-reserved);
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.badge-active {
    background-color: rgba(6, 182, 212, 0.15);
    color: var(--accent);
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-completed {
    background-color: rgba(34, 197, 94, 0.15);
    color: var(--slot-available);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-cancelled {
    background-color: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

/* ============================================
   Tables (Dark Theme)
   ============================================ */
.table-dark-custom {
    --bs-table-bg: var(--bg-card);
    --bs-table-border-color: var(--border-subtle);
    --bs-table-hover-bg: var(--bg-card-hover);
    color: var(--text-primary);
}

.table-dark-custom thead th {
    background-color: rgba(6, 182, 212, 0.08);
    color: var(--accent);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-subtle);
}

.table-dark-custom td {
    vertical-align: middle;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ============================================
   Section Headers
   ============================================ */
.section-title {
    font-weight: 700;
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
}

.accent-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    border: none;
    margin: 1rem 0;
}

/* ============================================
   Stat Cards (Dashboard)
   ============================================ */
.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: var(--shadow-glow);
}

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ============================================
   Location Cards
   ============================================ */
.location-card-img {
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ============================================
   Alert Overrides
   ============================================ */
.alert {
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner-accent {
    color: var(--accent);
}

/* ============================================
   Responsive Utilities
   ============================================ */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.5rem;
    }

    .slot-badge {
        width: 48px;
        height: 48px;
        font-size: 0.75rem;
    }

    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    .card-dark .card-body {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.1rem !important;
    }

    .section-title {
        font-size: 1.3rem;
    }
}