/* Root Variables */
:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    /* Neutral palette - clean and professional */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    --transition: all 0.2s ease;
}

/* Dark theme support */
[data-bs-theme="dark"] {
    --bg-primary: #1e293b;
    --bg-secondary: #0f172a;
    --bg-tertiary: #334155;
    --border-color: #334155;
    --border-hover: #475569;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
}

/* Global Styles */
body {
    background-color: var(--bg-secondary);
    font-family: "Montserrat", -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
}

/* Header/Navbar */
.navbar {
    background-color: var(--bg-primary) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem !important;
    color: var(--primary-color) !important;
    letter-spacing: -0.5px;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-primary) !important;
    border-right: 1px solid var(--border-color) !important;
}

.offcanvas-body {
    background-color: var(--bg-primary);
}

.nav-link {
    color: var(--text-secondary) !important;
    border-radius: 8px;
    margin: 0.25rem 0.75rem;
    padding: 0.75rem 1rem !important;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary) !important;
}

.nav-link.active {
    background-color: var(--primary-color) !important;
    color: white !important;
    font-weight: 600;
}

.nav-link svg,
.nav-link .bi {
    opacity: 0.7;
    transition: var(--transition);
}

.nav-link:hover svg,
.nav-link:hover .bi,
.nav-link.active svg,
.nav-link.active .bi {
    opacity: 1;
}

/* Main Content */
main {
    background-color: var(--bg-secondary);
}

.border-bottom {
    border-bottom: 1px solid var(--border-color) !important;
}

main h1,
main h2 {
    color: var(--text-primary);
    font-weight: 700;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    transition: var(--transition);
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary-color) !important;
    border: none !important;
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.85rem;
}

.btn-outline-info {
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    background-color: transparent;
}

.btn-outline-info:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* Table */
.table {
    color: var(--text-primary);
    margin-bottom: 0;
    border-radius: 12px;
    padding: 0;
    margin-top: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.table thead {
    background-color: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
}

.table thead th {
    color: var(--text-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem;
    border: none;
    white-space: nowrap;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.table tbody tr:last-child {
    border-bottom: none;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border: none;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: transparent;
}

/* Badge Styling */
.badge {
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.text-bg-success {
    background-color: #d1fae5 !important;
    color: #065f46 !important;
}

[data-bs-theme="dark"] .text-bg-success {
    background-color: #064e3b !important;
    color: #6ee7b7 !important;
}

.text-bg-danger {
    background-color: #fee2e2 !important;
    color: #991b1b !important;
}

[data-bs-theme="dark"] .text-bg-danger {
    background-color: #7f1d1d !important;
    color: #fca5a5 !important;
}

.text-bg-warning {
    background-color: #fef3c7 !important;
    color: #92400e !important;
}

[data-bs-theme="dark"] .text-bg-warning {
    background-color: #78350f !important;
    color: #fcd34d !important;
}

.text-bg-info {
    background-color: #dbeafe !important;
    color: #1e40af !important;
}

[data-bs-theme="dark"] .text-bg-info {
    background-color: #1e3a8a !important;
    color: #93c5fd !important;
}

.text-bg-primary {
    background-color: #e0e7ff !important;
    color: #3730a3 !important;
}

[data-bs-theme="dark"] .text-bg-primary {
    background-color: #312e81 !important;
    color: #a5b4fc !important;
}

.text-bg-secondary {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

/* Action Buttons */
.d-flex.gap-2 {
    gap: 0.5rem !important;
}

.table .btn {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    white-space: nowrap;
}

/* Theme Toggle */
.bd-mode-toggle .btn {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
}

.bd-mode-toggle .btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
}

.dropdown-menu {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--text-primary);
    border-radius: 6px;
    padding: 0.5rem 1rem;
    margin: 0.2rem 0;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-item.active {
    background-color: var(--primary-color);
    color: white;
}

/* Forms */
.form-control,
.form-select {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 0.625rem 0.875rem;
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-primary);
    border-color: var(--primary-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* Cards */
.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-hover);
}

.card-header {
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.25rem;
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: 1px solid;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: #d1fae5;
    border-color: #6ee7b7;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    border-color: #fca5a5;
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: #fcd34d;
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border-color: #93c5fd;
    color: #1e40af;
}

/* Pagination */
.pagination {
    gap: 0.25rem;
}

.page-link {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 0.5rem 0.875rem;
    transition: var(--transition);
}

.page-link:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

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

/* Responsive */
@media (max-width: 768px) {
    .table-responsive {
        border-radius: 8px;
    }

    .table {
        font-size: 0.85rem;
    }

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

/* Subtle animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.table-responsive,
main h1 {
    animation: fadeIn 0.3s ease-out;
}

/* Loading state */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Tooltip */
.tooltip-inner {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Text utilities */
.text-muted {
    color: var(--text-muted) !important;
}

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

/* Divider */
hr {
    border-color: var(--border-color);
    opacity: 1;
}