/* ========== Light Theme (Default) ========== */
:root,
[data-theme="light"] {
    /* Base colors */
    --bg-primary: #f9f9f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    /* Sidebar (always dark regardless of theme) */
    --sidebar-bg: #0f172a;
    --sidebar-gradient: linear-gradient(180deg, #ffffff 0%, #ffffff 100%);
    --sidebar-text: #334155;
    --sidebar-hover: #334155;
    --sidebar-hover-bg: rgb(241 245 249);
    --sidebar-active: #3b82f6;
    --sidebar-active-text: #ffffff;
    --sidebar-active-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    --sidebar-section-color: #475569;
    --sidebar-border: rgba(255, 255, 255, 0.07);
    /* Topbar */
    --topbar-height: 70px;
    --topbar-bg: rgba(255, 255, 255, 0.88);
    /*--topbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);*/
    --topbar-border: rgba(0, 0, 0, 0.07);
    --topbar-blur: blur(14px);
    /* Cards */
    --card-bg: #ffffff;
    --card-border: rgba(0, 0, 0, 0.06);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.04);
    --card-radius: var(--radius-lg);
    /* Inputs */
    --input-bg: #ffffff;
    --input-border: #e2e8f0;
    --input-focus-border: #3b82f6;
    --input-focus-ring: rgba(59, 130, 246, 0.15);
    --input-radius: var(--radius-sm);
    /* Links */
    --link-color: #3b82f6;
    --link-hover: #2563eb;
    /* Semantic colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    /* ── Design Tokens ── */
    /* Layout dimensions */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    /* Radius scale */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    /* Shadow scale */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -5px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.12), 0 8px 16px -6px rgba(0, 0, 0, 0.06);
    /* Brand gradients */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-info: linear-gradient(135deg, #06b6d4 0%, #0284c7 100%);
    /* Transitions */
    --transition: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* ========== Dark Theme ========== */
[data-theme="dark"] {
    /* Base colors */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #2d3f55;

    /* Sidebar (slightly deeper than body) */
    --sidebar-bg: #080f1e;
    --sidebar-gradient: linear-gradient(180deg, #080f1e 0%, #0f172a 100%);
    --sidebar-text: #94a3b8;
    --sidebar-hover: #1e293b;
    --sidebar-hover-bg: rgba(255, 255, 255, 0.05);
    --sidebar-active: #3b82f6;
    --sidebar-active-text: #ffffff;
    --sidebar-active-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
    --sidebar-section-color: #3f566e;
    --sidebar-border: rgba(255, 255, 255, 0.05);

    /* Topbar */
    --topbar-height: 70px;
    --topbar-bg: rgba(8, 15, 30, 0.88);
    /*--topbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);*/
    --topbar-border: rgba(255, 255, 255, 0.06);
    --topbar-blur: blur(14px);

    /* Cards */
    --card-bg: #1e293b;
    --card-border: rgba(255, 255, 255, 0.05);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.25), 0 1px 2px rgba(0, 0, 0, 0.15);
    --card-radius: var(--radius-lg);

    /* Inputs */
    --input-bg: #1e293b;
    --input-border: #334155;
    --input-focus-border: #3b82f6;
    --input-focus-ring: rgba(59, 130, 246, 0.2);
    --input-radius: var(--radius-sm);

    /* Links */
    --link-color: #60a5fa;
    --link-hover: #93bbfd;

    /* Semantic colors */
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;
    --info: #60a5fa;

    /* ── Design Tokens (same scale, different shadows) ── */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.15);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.25), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.35), 0 4px 10px -5px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.4), 0 8px 16px -6px rgba(0, 0, 0, 0.25);
}

/* ========== Apply Theme Variables ========== */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    transition: background-color var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.form-control,
.form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
    border-radius: var(--input-radius);
    padding: 0.5rem 0.8rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus-border);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.table {
    --bs-table-bg: var(--card-bg);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-bg-type: var(--bg-tertiary);
}

.dropdown-menu {
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 6px;
}

.dropdown-item {
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.875rem;
    transition: background-color var(--transition);
}

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

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

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

.modal-body {
    padding: 1.5rem;
}

.badge {
    border-radius: 20px;
    font-weight: 500;
    padding: 4px 10px;
    font-size: 0.73rem;
    letter-spacing: 0.01em;
}

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

a {
    color: var(--link-color);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 6px;
}

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