/* ========================================
   STH Admin - Modern UI Design System
   ======================================== */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-light: #f8fafc;
    --bg-hover: #334155;

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: #334155;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);

    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* Base Styles */
html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-light);
    color: #1e293b;
}

/* Override default link colors */
a, .btn-link {
    color: var(--primary);
}

/* ========================================
   Layout Overrides
   ======================================== */

.page {
    background-color: var(--bg-light);
}

.sidebar {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #1e293b 100%) !important;
}

.top-row {
    background-color: white;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: var(--shadow-sm);
}

.content {
    padding: 1.5rem !important;
}

/* ========================================
   Navigation Menu
   ======================================== */

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.025em;
}

.top-row.navbar-dark {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
}

.nav-item .nav-link {
    color: var(--text-secondary) !important;
    border-radius: var(--radius);
    margin: 0.125rem 0;
    padding: 0.625rem 0.75rem !important;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.875rem;
}

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

.nav-item .nav-link.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white !important;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.nav-item .nav-link {
    display: flex;
    align-items: center;
}

.nav-item .nav-link span[class^="bi"],
.nav-item .nav-link i[class^="bi"] {
    margin-right: 0.5rem;
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
    flex-shrink: 0;
}

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

.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: white;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* Stat Cards */
.card.bg-primary,
.card.bg-success,
.card.bg-danger,
.card.bg-info,
.card.bg-warning {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    border: none;
}

.card.bg-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
}

.card.bg-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
}

.card.bg-info {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%) !important;
}

.card.bg-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
}

.card.bg-light {
    background: white !important;
    box-shadow: var(--shadow);
}

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

.btn {
    font-weight: 500;
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #4338ca 100%);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-outline-primary {
    color: var(--primary);
    border: 2px solid var(--primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
}

.btn-outline-light {
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    color: white;
    border-color: rgba(255,255,255,0.5);
}

.btn-sm {
    font-size: 0.8125rem;
    padding: 0.375rem 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

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

.form-control, .form-select {
    border-radius: var(--radius);
    border: 2px solid #e2e8f0;
    padding: 0.625rem 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.form-label {
    font-weight: 500;
    color: #475569;
    margin-bottom: 0.5rem;
}

.input-group-text {
    background-color: #f1f5f9;
    border: 2px solid #e2e8f0;
    border-right: none;
    color: #64748b;
}

.input-group .form-control {
    border-left: none;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* ========================================
   Tables
   ======================================== */

.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
    background-color: #f8fafc;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid #e2e8f0;
}

.table td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #e2e8f0;
}

.table-sm th, .table-sm td {
    padding: 0.625rem 0.75rem;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: #f8fafc;
}

.table-hover tbody tr:hover {
    background-color: #f1f5f9;
}

.table-danger {
    background-color: #fef2f2 !important;
}

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

.badge {
    font-weight: 500;
    padding: 0.375em 0.75em;
    border-radius: var(--radius);
    font-size: 0.75rem;
}

.badge.bg-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
}

.badge.bg-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
}

.badge.bg-info {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%) !important;
}

.badge.bg-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
    color: white !important;
}

.badge.bg-secondary {
    background: #64748b !important;
}

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

.alert {
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-danger {
    background-color: #fef2f2;
    color: #dc2626;
}

.alert-success {
    background-color: #f0fdf4;
    color: #16a34a;
}

.alert-warning {
    background-color: #fffbeb;
    color: #d97706;
}

.alert-info {
    background-color: #f0f9ff;
    color: #0284c7;
}

/* ========================================
   Accordion
   ======================================== */

.accordion {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.accordion-item {
    border: none;
    border-bottom: 1px solid #e2e8f0;
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-button {
    font-weight: 600;
    padding: 1rem 1.25rem;
    background-color: white;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    color: var(--primary);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.accordion-button::after {
    transition: transform 0.3s ease;
}

.accordion-body {
    padding: 0;
}

/* ========================================
   Progress Bars
   ======================================== */

.progress {
    background-color: #e2e8f0;
    border-radius: var(--radius);
    overflow: hidden;
}

.progress-bar {
    transition: width 0.3s ease;
}

/* ========================================
   Modals
   ======================================== */

.modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem 1.5rem;
}

.modal-header.bg-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #e2e8f0;
    padding: 1rem 1.5rem;
}

/* ========================================
   Page Headers
   ======================================== */

h3 {
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
}

h3 i, h5 i {
    color: var(--primary);
    display: inline-flex;
    align-items: center;
}

/* Icon alignment utility */
.d-flex i[class^="bi"],
.d-flex span[class^="bi"] {
    display: inline-flex;
    align-items: center;
}

/* Badge icon alignment */
.badge i {
    vertical-align: middle;
}

/* Button icon alignment */
.btn i {
    vertical-align: middle;
}

/* Alert icon alignment */
.alert i {
    vertical-align: middle;
}

/* ========================================
   Code Blocks
   ======================================== */

code {
    background-color: #f1f5f9;
    color: #be185d;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ========================================
   Spinner
   ======================================== */

.spinner-border {
    width: 1.25rem;
    height: 1.25rem;
    border-width: 2px;
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

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

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

    .row .col-md-3,
    .row .col-md-4 {
        margin-bottom: 0.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

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

/* ========================================
   Utilities
   ======================================== */

.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }

.fw-semibold { font-weight: 600; }

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .alert {
    animation: fadeIn 0.3s ease;
}

/* ========================================
   Blazor Error UI
   ======================================== */

.blazor-error-boundary {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: var(--radius);
}

#blazor-error-ui {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    border-radius: var(--radius);
}