/* =========================================
    Custom Theme Colors - Based on PRD
    Color Scheme from docs/prd.md
    ========================================= */

:root {
    /* Primary Colors from PRD */
    --primary: #2563EB;
    --primary-hover: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-lighter: #60a5fa;
    --primary-lightest: #dbeafe;

    --secondary: #64748B;
    --secondary-hover: #475569;

    --success: #16A34A;
    --success-hover: #15803d;
    --success-light: #22c55e;
    --success-lightest: #dcfce7;

    --warning: #F59E0B;
    --warning-hover: #d97706;
    --warning-light: #fbbf24;
    --warning-lightest: #fef3c7;

    --danger: #DC2626;
    --danger-hover: #b91c1c;
    --danger-light: #ef4444;
    --danger-lightest: #fee2e2;

    --info: #0ea5e9;
    --info-hover: #0284c7;
    --info-light: #38bdf8;
    --info-lightest: #e0f2fe;

    /* Background & Surface */
    --background: #F8FAFC;
    --card-bg: #FFFFFF;
    --surface: #FFFFFF;

    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;

    /* Border Colors */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    /* Shadow */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 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);
}

/* =========================================
    Base Styles
    ========================================= */
body {
    background-color: var(--background);
    color: var(--text-primary);
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* =========================================
    Navbar Styling
    ========================================= */
.navbar {
    background-color: var(--surface);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary);
}

.navbar-brand:hover {
    color: var(--primary-hover);
}

.navbar .dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
}

.navbar .dropdown-item {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
}

.navbar .dropdown-item:hover {
    background-color: var(--primary-lightest);
    color: var(--primary);
}

/* =========================================
    Card Styling
    ========================================= */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

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

.card-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0;
}

.card-body {
    padding: 1.25rem;
}

/* =========================================
    Button Styles
    ========================================= */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease-in-out;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

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

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--secondary-hover);
    border-color: var(--secondary-hover);
}

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

.btn-success:hover,
.btn-success:focus {
    background-color: var(--success-hover);
    border-color: var(--success-hover);
    box-shadow: 0 4px 12px rgba(22, 163, 74, 0.4);
}

.btn-warning {
    background-color: var(--warning);
    border-color: var(--warning);
    color: white;
}

.btn-warning:hover,
.btn-warning:focus {
    background-color: var(--warning-hover);
    border-color: var(--warning-hover);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
    color: white;
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: var(--danger-hover);
    border-color: var(--danger-hover);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
}

/* =========================================
    Table Styling
    ========================================= */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background-color: var(--primary);
    color: white;
    border: 0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 0.75rem;
}

.table thead th:first-child {
    border-top-left-radius: 0.5rem;
}

.table thead th:last-child {
    border-top-right-radius: 0.5rem;
}

.table tbody tr {
    transition: background-color 0.2s ease-in-out;
}

.table tbody tr:hover {
    background-color: var(--primary-lightest);
}

.table tbody td {
    vertical-align: middle;
    border-color: var(--border-color);
    padding: 0.875rem 0.75rem;
    color: var(--text-primary);
}

/* =========================================
    Badge Styling
    ========================================= */
.badge {
    padding: 0.375rem 0.625rem;
    border-radius: 0.375rem;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

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

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

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

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

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

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

/* =========================================
    Form Controls
    ========================================= */
.form-control {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.625rem 0.875rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
    outline: none;
}

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

.form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-select {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.625rem 0.875rem;
    color: var(--text-primary);
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

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

.form-check-input:focus {
    box-shadow: 0 0 0 3px var(--primary-lightest);
}

/* =========================================
    Alert Styling
    ========================================= */
.alert {
    border-radius: 0.5rem;
    border: 0;
    padding: 1rem 1.25rem;
}

.alert-success {
    background-color: var(--success-lightest);
    color: var(--success-hover);
    border-left: 4px solid var(--success);
}

.alert-warning {
    background-color: var(--warning-lightest);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-danger {
    background-color: var(--danger-lightest);
    color: var(--danger-hover);
    border-left: 4px solid var(--danger);
}

.alert-info {
    background-color: var(--info-lightest);
    color: var(--info-hover);
    border-left: 4px solid var(--info);
}

.alert-primary {
    background-color: var(--primary-lightest);
    color: var(--primary-hover);
    border-left: 4px solid var(--primary);
}

/* =========================================
    Typography
    ========================================= */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
}

.text-primary {
    color: var(--primary);
}

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

.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

.text-danger {
    color: var(--danger);
}

.text-info {
    color: var(--info);
}

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

/* =========================================
    Pagination
    ========================================= */
.pagination .page-link {
    color: var(--primary);
    border-color: var(--border-color);
    padding: 0.5rem 0.875rem;
}

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

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

.pagination .page-item.disabled .page-link {
    color: var(--text-muted);
}

/* =========================================
    DataTables Override
    ========================================= */
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--primary-lightest);
    border-color: var(--primary);
    color: var(--primary);
}

.dataTables_wrapper .dataTables_filter input {
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.375rem 0.75rem;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lightest);
    outline: none;
}

/* =========================================
    Modal Styling
    ========================================= */
.modal-content {
    border: 0;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

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

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

/* =========================================
    Progress Bar
    ========================================= */
.progress {
    border-radius: 0.375rem;
    background-color: var(--border-light);
}

.progress-bar {
    background-color: var(--primary);
}

.progress-bar.bg-success {
    background-color: var(--success);
}

.progress-bar.bg-warning {
    background-color: var(--warning);
}

.progress-bar.bg-danger {
    background-color: var(--danger);
}

/* =========================================
    Dropdown
    ========================================= */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    transition: background-color 0.2s ease-in-out;
}

.dropdown-item:hover {
    background-color: var(--primary-lightest);
    color: var(--primary);
}

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

/* =========================================
    Link Styling
    ========================================= */
a {
    color: var(--primary);
    text-decoration: none;
}

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

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

::-webkit-scrollbar-track {
    background: var(--border-light);
    border-radius: 4px;
}

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

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