/* ============================================
   BKH QR Tracking System - Custom Styles
   Light Theme with Teal/Blue Accents
   ============================================ */

:root {
    --primary-color: #1F2937;
    --secondary-color: #374151;
    --light-bg: #FFFFFF;
    --card-bg: #F9FAFB;
    --text-dark: #111827;
    --text-light: #6B7280;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
}

/* ============================================
   Global Styles
   ============================================ */

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

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
}

body {
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    font-weight: 600;
}

a {
    color: #1F2937;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #374151;
}

/* ============================================
   Buttons
   ============================================ */

.btn-primary {
    background-color: #1F2937;
    border-color: #1F2937;
    color: white;
}

.btn-primary:hover {
    background-color: #111827;
    border-color: #111827;
}

.btn-secondary {
    background-color: #374151;
    border-color: #374151;
    color: white;
}

.btn-secondary:hover {
    background-color: #1F2937;
    border-color: #1F2937;
}

.btn-outline-primary {
    color: #1F2937;
    border-color: #1F2937;
}

.btn-outline-primary:hover {
    background-color: #1F2937;
    border-color: #1F2937;
}

/* ============================================
   Cards
   ============================================ */

.card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1.5rem;
}

.card-header i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* ============================================
   Forms
   ============================================ */

.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #1F2937;
    box-shadow: 0 0 0 0.2rem rgba(31, 41, 55, 0.15);
}

.form-label {
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* ============================================
   Navbar - Enhanced
   ============================================ */

.navbar {
    background-color: var(--light-bg) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar-enhanced {
    padding: 0.75rem 0;
}

.navbar-brand {
    color: #1F2937 !important;
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    color: #374151 !important;
    transform: scale(1.05);
}

.navbar-logo {
    transition: transform 0.3s ease;
}

.navbar-brand:hover .navbar-logo {
    transform: rotate(-5deg);
}

.navbar-brand-text {
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-link {
    color: #6B7280 !important;
    margin: 0 0.25rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link-enhanced {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem !important;
    border-radius: 6px;
}

.nav-link-enhanced:hover {
    color: #1F2937 !important;
    background-color: rgba(31, 41, 55, 0.05);
    transform: translateY(-2px);
}

.nav-link-enhanced.active {
    color: #1F2937 !important;
    font-weight: 600;
    background-color: rgba(31, 41, 55, 0.1);
}

.nav-link-create {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10B981 !important;
}

.nav-link-create:hover {
    background-color: rgba(16, 185, 129, 0.2);
    color: #059669 !important;
}

.dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

.dropdown-item {
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: rgba(31, 41, 55, 0.05);
    color: #1F2937;
}

/* Mobile navbar enhancements */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: var(--card-bg);
        border-radius: 8px;
        margin-top: 0.5rem;
        padding: 1rem;
    }

    .nav-link-enhanced {
        padding: 0.75rem 1rem !important;
        margin: 0.25rem 0;
    }
}

/* ============================================
   Tables & DataTables
   ============================================ */

.table {
    border-collapse: collapse;
    margin-bottom: 0;
}

.table thead th {
    background-color: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-dark);
    padding: 1rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
}

.table thead th:hover {
    background-color: #f0f0f0;
}

.table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--card-bg);
    box-shadow: inset 0 0 0 1px var(--border-color);
}

/* DataTables Customization */
.dataTables_wrapper {
    padding: 0;
}

.dataTables_length,
.dataTables_filter {
    margin-bottom: 1rem;
}

.dataTables_filter input {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    transition: all 0.3s ease;
}

.dataTables_filter input:focus {
    border-color: #1F2937;
    box-shadow: 0 0 0 0.2rem rgba(31, 41, 55, 0.15);
}

.dataTables_paginate {
    margin-top: 1rem;
}

.dataTables_paginate .paginate_button {
    padding: 0.5rem 0.75rem;
    margin: 0 0.25rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--light-bg);
    color: #1F2937;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dataTables_paginate .paginate_button:hover {
    background-color: var(--card-bg);
    border-color: #1F2937;
}

.dataTables_paginate .paginate_button.current {
    background-color: #1F2937;
    color: white;
    border-color: #1F2937;
}

.dataTables_paginate .paginate_button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.dt-buttons {
    margin-bottom: 1rem;
}

.dt-buttons .btn {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.dt-button {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--light-bg);
    color: #1F2937;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.dt-button:hover {
    background-color: var(--card-bg);
    border-color: #1F2937;
    transform: translateY(-2px);
}

.dt-button.active {
    background-color: #1F2937;
    color: white;
    border-color: #1F2937;
}

/* Mobile table enhancements */
@media (max-width: 768px) {
    .table thead th {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }

    .table tbody td {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }

    .dataTables_length,
    .dataTables_filter {
        margin-bottom: 0.75rem;
    }

    .dataTables_filter input {
        width: 100%;
        max-width: 100%;
    }

    .dt-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .dt-button {
        flex: 1;
        min-width: 80px;
        padding: 0.5rem 0.5rem;
        font-size: 0.85rem;
    }
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    border: none;
    border-radius: 6px;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    color: #7f1d1d;
}

.alert-warning {
    background-color: #fef3c7;
    color: #78350f;
}

.alert-info {
    background-color: #cffafe;
    color: #164e63;
}

/* ============================================
   Badges
   ============================================ */

.badge {
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.85rem;
}

.badge-primary {
    background-color: var(--primary-color);
    color: white;
}

.badge-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.badge-success {
    background-color: var(--success-color);
    color: white;
}

/* ============================================
   Stat Cards
   ============================================ */

.stat-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--light-bg) 100%);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1F2937, #374151);
}

.stat-card:hover {
    border-color: #1F2937;
    box-shadow: 0 8px 24px rgba(31, 41, 55, 0.15);
    transform: translateY(-4px);
}

.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0 0.5rem 0;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.stat-card .stat-icon {
    font-size: 2.5rem;
    color: #1F2937;
    margin-bottom: 0.5rem;
    display: inline-block;
}

/* ============================================
   Maps
   ============================================ */

.map-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

#map {
    height: 500px;
    width: 100%;
}

.leaflet-popup-content {
    font-size: 0.9rem;
}

.leaflet-popup-content-wrapper {
    border-radius: 6px;
}

/* ============================================
   Charts
   ============================================ */

.chart-container {
    position: relative;
    height: 300px;
    margin-bottom: 2rem;
}

.chart-container canvas {
    max-height: 300px;
}

/* ============================================
   Login Page
   ============================================ */

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1F2937 0%, #374151 100%);
}

.login-card {
    background-color: var(--light-bg);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.login-card .card-title {
    text-align: center;
    margin-bottom: 2rem;
    color: #1F2937;
}

.login-card .login-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
    color: #1F2937;
}

/* ============================================
   Footer - Enhanced
   ============================================ */

.footer-enhanced {
    background: linear-gradient(135deg, var(--light-bg) 0%, var(--card-bg) 100%);
    border-top: 2px solid var(--border-color);
    margin-top: auto;
}

.footer-text {
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.footer-text:hover {
    color: #1F2937 !important;
}

.footer-divider {
    border-color: var(--border-color);
    margin: 1rem 0;
}

.footer-version {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.footer-version a {
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-version a:hover {
    color: #1F2937 !important;
    text-decoration: underline;
}

/* Mobile footer enhancements */
@media (max-width: 768px) {
    .footer-enhanced {
        padding: 1.5rem 0.75rem !important;
    }

    .footer-text {
        font-size: 0.85rem;
        margin-bottom: 0.5rem;
    }

    .footer-version {
        font-size: 0.8rem;
    }
}

/* ============================================
   Pagination
   ============================================ */

.pagination .page-link {
    color: #1F2937;
    border-color: var(--border-color);
}

.pagination .page-link:hover {
    background-color: var(--card-bg);
    border-color: #1F2937;
}

.pagination .page-item.active .page-link {
    background-color: #1F2937;
    border-color: #1F2937;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1200px) {
    .stat-card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    main {
        padding: 1rem !important;
    }

    .stat-card {
        margin-bottom: 1rem;
        padding: 1.5rem 1rem;
    }

    .stat-card .stat-value {
        font-size: 2rem;
    }

    .stat-card .stat-icon {
        font-size: 2rem;
    }

    .chart-container {
        height: 250px;
    }

    #map {
        height: 300px;
    }

    .table {
        font-size: 0.9rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.75rem 0.5rem;
    }

    .card {
        margin-bottom: 1rem;
    }

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

@media (max-width: 576px) {
    main {
        padding: 0.75rem !important;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .stat-card {
        margin-bottom: 0.75rem;
        padding: 1.25rem 0.75rem;
    }

    .stat-card .stat-value {
        font-size: 1.75rem;
    }

    .stat-card .stat-icon {
        font-size: 1.75rem;
    }

    .stat-card .stat-label {
        font-size: 0.85rem;
    }

    .chart-container {
        height: 200px;
    }

    #map {
        height: 250px;
    }

    .table {
        font-size: 0.8rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.5rem 0.25rem;
    }

    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .card {
        margin-bottom: 0.75rem;
    }

    .card-body {
        padding: 0.75rem;
    }

    .card-header {
        padding: 0.75rem;
        font-size: 0.95rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .nav-link {
        margin: 0.25rem 0;
        font-size: 0.95rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

.text-primary {
    color: #1F2937 !important;
}

.text-secondary {
    color: #374151 !important;
}

.text-muted {
    color: var(--text-light) !important;
}

.bg-light-primary {
    background-color: rgba(31, 41, 55, 0.1);
}

.border-primary {
    border-color: #1F2937 !important;
}

.shadow-sm {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05) !important;
}

.shadow-md {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
}

.rounded-lg {
    border-radius: 8px;
}

.transition-all {
    transition: all 0.3s ease;
}