/* =============================================
   SAMS - Smart Asset Management System
   Custom Styles + Dark Mode
   ============================================= */

/* CSS Variables */
:root {
    --sidebar-width: 260px;
    --topbar-height: 60px;
    --primary-color: #0d6efd;
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --sidebar-text: #cbd5e1;
    --sidebar-active: #0d6efd;
    --content-bg: #f0f2f5;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
}

[data-bs-theme="dark"] {
    --content-bg: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --sidebar-bg: #0f172a;
    --sidebar-hover: #1e293b;
}

/* Global */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--content-bg);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--sidebar-bg);
    z-index: 1040;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    height: var(--topbar-height);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
}

.sidebar-brand h4 {
    color: #fff;
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
}

.sidebar-nav {
    padding: 15px 0;
    list-style: none;
    margin: 0;
}

.sidebar-nav .nav-item {
    margin: 2px 10px;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: var(--sidebar-text);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.sidebar-nav .nav-link:hover {
    background-color: var(--sidebar-hover);
    color: #fff;
}

.sidebar-nav .nav-link.active {
    background-color: var(--sidebar-active);
    color: #fff;
}

.sidebar-nav .nav-link i {
    width: 20px;
    margin-right: 10px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-section-title {
    padding: 15px 25px 5px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #64748b;
    font-weight: 600;
}

/* Topbar */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    z-index: 1030;
}

.topbar-left {
    display: flex;
    align-items: center;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.topbar-search {
    position: relative;
}

.topbar-search input {
    width: 300px;
    padding: 8px 15px 8px 38px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--content-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.topbar-search i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.notification-bell {
    position: relative;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.notification-bell:hover {
    background-color: var(--content-bg);
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background-color: #dc3545;
    color: #fff;
    font-size: 0.65rem;
    padding: 2px 5px;
    border-radius: 50%;
    min-width: 16px;
    text-align: center;
}

.user-dropdown {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.user-dropdown:hover {
    background-color: var(--content-bg);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.user-info {
    line-height: 1.2;
}

.user-info .user-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.user-info .user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--topbar-height);
    padding: 25px;
    min-height: calc(100vh - var(--topbar-height));
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 5px 0 0;
    font-size: 0.85rem;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* Stats Cards */
.stat-card {
    border-radius: 12px;
    padding: 20px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.stat-card .stat-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 3rem;
    opacity: 0.2;
}

.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    opacity: 0.9;
}

.stat-card.bg-primary { background: linear-gradient(135deg, #0d6efd, #0b5ed7); }
.stat-card.bg-success { background: linear-gradient(135deg, #198754, #157347); }
.stat-card.bg-warning { background: linear-gradient(135deg, #fd7e14, #e8590c); }
.stat-card.bg-danger { background: linear-gradient(135deg, #dc3545, #bb2d3b); }
.stat-card.bg-info { background: linear-gradient(135deg, #0dcaf0, #0aa2c0); }

/* Tables */
.table-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    color: var(--text-primary);
}

.table thead th {
    background-color: var(--content-bg);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 15px;
    color: var(--text-secondary);
}

.table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.table tbody tr:hover {
    background-color: var(--content-bg);
}

/* Status Badges */
.badge-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-available { background-color: #d1fae5; color: #065f46; }
.badge-inuse { background-color: #dbeafe; color: #1e40af; }
.badge-undermaintenance { background-color: #fef3c7; color: #92400e; }
.badge-disposed { background-color: #fee2e2; color: #991b1b; }
.badge-active { background-color: #d1fae5; color: #065f46; }
.badge-returned { background-color: #e0e7ff; color: #3730a3; }
.badge-overdue { background-color: #fee2e2; color: #991b1b; }
.badge-scheduled { background-color: #dbeafe; color: #1e40af; }
.badge-inprogress { background-color: #fef3c7; color: #92400e; }
.badge-completed { background-color: #d1fae5; color: #065f46; }
.badge-cancelled { background-color: #f3f4f6; color: #6b7280; }

[data-bs-theme="dark"] .badge-available { background-color: #064e3b; color: #a7f3d0; }
[data-bs-theme="dark"] .badge-inuse { background-color: #1e3a5f; color: #93c5fd; }
[data-bs-theme="dark"] .badge-undermaintenance { background-color: #78350f; color: #fde68a; }
[data-bs-theme="dark"] .badge-disposed { background-color: #7f1d1d; color: #fecaca; }
[data-bs-theme="dark"] .badge-active { background-color: #064e3b; color: #a7f3d0; }
[data-bs-theme="dark"] .badge-returned { background-color: #312e81; color: #c7d2fe; }
[data-bs-theme="dark"] .badge-overdue { background-color: #7f1d1d; color: #fecaca; }
[data-bs-theme="dark"] .badge-scheduled { background-color: #1e3a5f; color: #93c5fd; }
[data-bs-theme="dark"] .badge-inprogress { background-color: #78350f; color: #fde68a; }
[data-bs-theme="dark"] .badge-completed { background-color: #064e3b; color: #a7f3d0; }
[data-bs-theme="dark"] .badge-cancelled { background-color: #374151; color: #d1d5db; }

/* Forms */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 10px 15px;
    font-size: 0.9rem;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.form-label {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.8rem;
}

.btn-action {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 0.85rem;
}

/* Pagination */
.pagination .page-link {
    border-radius: 8px;
    margin: 0 3px;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    background-color: var(--card-bg);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Auth Pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.auth-card {
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    padding: 40px;
    width: 100%;
    max-width: 450px;
}

[data-bs-theme="dark"] .auth-card {
    background-color: var(--card-bg);
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 30px;
}

.auth-card .auth-logo img {
    width: 60px;
    height: 60px;
}

.auth-card .auth-logo h3 {
    margin-top: 10px;
    font-weight: 700;
    color: var(--primary-color);
}

.auth-card .auth-title {
    text-align: center;
    margin-bottom: 25px;
}

.auth-card .auth-title h4 {
    font-weight: 600;
    margin-bottom: 5px;
}

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

/* Dark Mode Toggle */
.dark-mode-toggle {
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: background-color 0.2s;
}

.dark-mode-toggle:hover {
    background-color: var(--content-bg);
}

/* Footer */
.footer {
    margin-left: var(--sidebar-width);
    padding: 15px 25px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-color);
}

/* Alert Messages */
.alert {
    border-radius: 10px;
    padding: 12px 20px;
    font-size: 0.9rem;
    border: none;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.filter-bar .form-control,
.filter-bar .form-select {
    max-width: 200px;
}

/* Charts */
.chart-container {
    position: relative;
    height: 300px;
}

/* QR Code */
.qr-code-container {
    text-align: center;
    padding: 20px;
}

.qr-code-container img {
    max-width: 200px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    background: #fff;
}

/* Responsive */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .topbar {
        left: 0;
    }

    .main-content {
        margin-left: 0;
    }

    .footer {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: block !important;
    }
}

@media (min-width: 992px) {
    .sidebar-toggle {
        display: none !important;
    }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1035;
}

.sidebar-overlay.show {
    display: block;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: #94a3b8;
    border-radius: 3px;
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

[data-bs-theme="dark"] .spinner-overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state h5 {
    margin-bottom: 10px;
}

/* Notification Dropdown */
.notification-dropdown {
    width: 350px;
    max-height: 400px;
    overflow-y: auto;
}

.notification-item {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.notification-item:hover {
    background-color: var(--content-bg);
}

.notification-item.unread {
    border-left: 3px solid var(--primary-color);
}

.notification-item .notif-title {
    font-weight: 600;
    font-size: 0.85rem;
}

.notification-item .notif-message {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 3px;
}

.notification-item .notif-time {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 5px;
}