/* ========== Design Tokens (Soft UI Evolution) ========== */
:root {
    --color-primary: #0F172A;
    --color-on-primary: #FFFFFF;
    --color-secondary: #334155;
    --color-accent: #0369A1;
    --color-accent-hover: #0284C7;
    --color-background: #F8FAFC;
    --color-foreground: #020617;
    --color-muted: #E8ECF1;
    --color-muted-text: #64748B;
    --color-border: #E2E8F0;
    --color-destructive: #DC2626;
    --color-success: #059669;
    --color-warning: #D97706;
    --color-info: #0284C7;
    --sidebar-width: 260px;
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
    --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --transition: 180ms ease;
}

/* ========== Base ========== */
body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-foreground);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    transition: color var(--transition);
}

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

/* ========== Bootstrap Overrides ========== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn:focus-visible {
    box-shadow: 0 0 0 0.2rem rgba(3, 105, 161, 0.25);
}

.btn-primary {
    --bs-btn-bg: var(--color-accent);
    --bs-btn-border-color: var(--color-accent);
    --bs-btn-hover-bg: var(--color-accent-hover);
    --bs-btn-hover-border-color: var(--color-accent-hover);
    --bs-btn-active-bg: #075985;
    --bs-btn-active-border-color: #075985;
    --bs-btn-disabled-bg: var(--color-accent);
    --bs-btn-disabled-border-color: var(--color-accent);
}

.btn-outline-primary {
    --bs-btn-color: var(--color-accent);
    --bs-btn-border-color: var(--color-accent);
    --bs-btn-hover-bg: var(--color-accent);
    --bs-btn-hover-border-color: var(--color-accent);
    --bs-btn-active-bg: #075985;
    --bs-btn-active-border-color: #075985;
}

.form-control,
.form-select {
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.85rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 0.2rem rgba(3, 105, 161, 0.15);
}

.form-label {
    font-weight: 500;
    color: var(--color-secondary);
    margin-bottom: 0.4rem;
}

.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: #fff;
}

.card-header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    border-radius: var(--radius) var(--radius) 0 0 !important;
    padding: 1rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

.badge {
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 0.4em 0.65em;
    border-radius: 0.4rem;
}

.table {
    --bs-table-border-color: var(--color-border);
    margin-bottom: 0;
}

.table thead th {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-muted-text);
    background-color: #F1F5F9;
    border-bottom-width: 1px;
    white-space: nowrap;
    padding: 0.85rem 1rem;
}

.table tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    color: var(--color-secondary);
}

.table-hover tbody tr:hover {
    background-color: rgba(3, 105, 161, 0.03);
}

.breadcrumb {
    margin-bottom: 1rem;
}

.breadcrumb-item,
.breadcrumb-item a {
    color: var(--color-muted-text);
    font-size: 0.875rem;
}

.breadcrumb-item.active {
    color: var(--color-secondary);
    font-weight: 500;
}

.alert {
    border: none;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.dropdown-menu {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    padding: 0.4rem;
}

.dropdown-item {
    border-radius: 0.35rem;
    font-size: 0.9rem;
    padding: 0.45rem 0.75rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--color-muted);
}

.pagination {
    --bs-pagination-border-radius: var(--radius-sm);
    --bs-pagination-color: var(--color-secondary);
    --bs-pagination-border-color: var(--color-border);
    --bs-pagination-hover-color: var(--color-accent);
    --bs-pagination-hover-bg: var(--color-muted);
    --bs-pagination-hover-border-color: var(--color-border);
    --bs-pagination-active-bg: var(--color-accent);
    --bs-pagination-active-border-color: var(--color-accent);
    --bs-pagination-focus-box-shadow: 0 0 0 0.2rem rgba(3, 105, 161, 0.15);
    gap: 0.25rem;
}

.page-link {
    border-radius: var(--radius-sm) !important;
    font-weight: 500;
    font-size: 0.875rem;
}

/* ========== Sidebar ========== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    z-index: 1040;
    overflow-y: auto;
    transition: transform 0.25s ease;
    box-shadow: 4px 0 24px rgba(15, 23, 42, 0.12);
}

.sidebar-brand {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand a {
    color: #fff !important;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-brand .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--color-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.sidebar .nav {
    padding: 1rem 0.75rem;
    gap: 0.15rem;
}

.sidebar .nav-section-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.35);
    padding: 0.75rem 0.85rem 0.35rem;
    margin-top: 0.25rem;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.65);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.85rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    transition: background-color var(--transition), color var(--transition);
}

.sidebar .nav-link i {
    font-size: 1.1rem;
    width: 1.25rem;
    text-align: center;
    opacity: 0.85;
}

.sidebar .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.08);
}

.sidebar .nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, var(--color-accent) 0%, #0284C7 100%);
    box-shadow: 0 4px 12px rgba(3, 105, 161, 0.35);
}

.sidebar .nav-link.active i {
    opacity: 1;
}

.sidebar-user {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1rem 1.25rem;
    margin-top: auto;
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-user .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
}

.sidebar-user .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}

/* ========== Main Content ========== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--color-background);
}

.main-content > .navbar {
    background: #fff !important;
    border-bottom: 1px solid var(--color-border) !important;
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 1.5rem !important;
    min-height: 64px;
}

.main-content > .navbar h5 {
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

.main-content > .navbar .badge {
    font-size: 0.7rem;
    background: var(--color-muted) !important;
    color: var(--color-secondary) !important;
}

.page-content {
    padding: 1.5rem;
}

/* ========== Sidebar Overlay (mobile) ========== */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 1035;
    backdrop-filter: blur(2px);
}

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

/* ========== Responsive: < 768px ========== */
@media (max-width: 767.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

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

    .page-content {
        padding: 1rem;
    }
}

/* ========== Stat Cards ========== */
.stat-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
    overflow: hidden;
    position: relative;
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-muted-text);
    margin-bottom: 0.15rem;
}

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

/* ========== Page Header ========== */
.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.page-header h1,
.page-header .page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--color-muted-text);
}

.empty-state i {
    font-size: 2.5rem;
    opacity: 0.4;
    margin-bottom: 0.75rem;
    display: block;
}

/* ========== Auth ========== */
.auth-body {
    background: linear-gradient(145deg, #F1F5F9 0%, #E2E8F0 50%, #F8FAFC 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
}

.auth-brand-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 8px 20px rgba(3, 105, 161, 0.3);
}

.auth-card {
    box-shadow: var(--shadow-md);
    border-radius: var(--radius);
}

/* ========== Action Buttons in Table ========== */
.btn-action {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.4rem;
}

/* ========== Pagination Footer ========== */
.pagination-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 0 0;
    border-top: 1px solid var(--color-border);
    margin-top: 1rem;
}

.pagination-footer .pagination-info {
    font-size: 0.85rem;
    color: var(--color-muted-text);
}

/* ========== Filter Bar ========== */
.filter-bar {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

/* ========== Reduced Motion ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}