/* =========================================
   1. VARIABLES & THEME CONFIGURATION
   ========================================= */
:root {
    /* Color Palette: Slate (Neutrals) */
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    /* Color Palette: Primary (Indent/Blue) */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    /* Semantic Colors */
    --color-bg-body: var(--slate-50);
    --color-bg-sidebar: var(--slate-900);
    --color-bg-card: #ffffff;
    --color-text-main: var(--slate-700);
    --color-text-muted: var(--slate-500);
    --color-primary: var(--primary-600);
    --color-primary-hover: var(--primary-700);
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #06b6d4;
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    /* Spacing & Layout */
    --header-height: 64px;
    --sidebar-width: 260px;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* =========================================
   2. RESET & BASE STYLES
   ========================================= */
html,
body {
    height: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--slate-800);
    font-weight: 600;
    letter-spacing: -0.025em;
    margin-bottom: 0.5em;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

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

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

::-webkit-scrollbar-thumb {
    background-color: var(--slate-300);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: content-box;
}

    ::-webkit-scrollbar-thumb:hover {
        background-color: var(--slate-400);
    }

/* =========================================
   3. COMPONENT OVERRIDES (BOOTSTRAP/BLAZORISE)
   ========================================= */

/* Cards */
.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
}

    .card:hover {
        box-shadow: var(--shadow-md);
        border-color: var(--slate-300);
    }

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--slate-100);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--slate-800);
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-sm);
}

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

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

.btn-light {
    background-color: white;
    border-color: var(--slate-200);
    color: var(--slate-700);
}

    .btn-light:hover {
        background-color: var(--slate-50);
        border-color: var(--slate-300);
        color: var(--slate-900);
    }

/* Form Controls */
.form-control,
.form-select {
    border-radius: var(--radius-md);
    border: 1px solid var(--slate-200);
    padding: 0.625rem 1rem;
    font-size: 0.95rem;
    color: var(--slate-700);
    transition: border-color 0.2s, box-shadow 0.2s;
}

    .form-control:focus,
    .form-select:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px var(--primary-100);
    }

.form-label {
    font-weight: 500;
    color: var(--slate-700);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Sidebar & Navigation */
.sider,
.layout-sider {
    background-color: var(--color-bg-sidebar) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.b-bar-link {
    border-radius: var(--radius-md);
    margin: 0.25rem 1rem;
    padding: 0.75rem 1rem;
    color: var(--slate-400) !important;
    transition: all 0.2s ease;
}

    .b-bar-link:hover {
        background-color: rgba(255, 255, 255, 0.05);
        color: white !important;
    }

    .b-bar-link.active {
        background-color: var(--color-primary);
        color: white !important;
        font-weight: 500;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    }

.b-bar-icon {
    font-size: 1.1em;
    opacity: 0.8;
}

/* Tables */
.table {
    margin-bottom: 0;
}

    .table thead th {
        background-color: var(--slate-50);
        color: var(--slate-500);
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.75rem;
        letter-spacing: 0.05em;
        border-bottom: 1px solid var(--slate-200);
        padding: 0.75rem 1.5rem;
    }

    .table tbody td {
        padding: 1rem 1.5rem;
        vertical-align: middle;
        border-bottom: 1px solid var(--slate-100);
        color: var(--slate-700);
    }

.table-hover tbody tr:hover {
    background-color: var(--primary-50);
}

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

.modal-header {
    border-bottom: 1px solid var(--slate-100);
    background-color: var(--slate-50);
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
    padding: 1.25rem 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--slate-100);
    padding: 1.25rem 1.5rem;
}

/* =========================================
   4. UTILITIES & ANIMATIONS
   ========================================= */
.text-muted {
    color: var(--color-text-muted) !important;
}

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

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

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

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Glassmorphism helpers */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Layout Content Area */
.content {
    max-width: 1400px;
    margin: 0 auto;
}

/* Blazor Error UI Overrides */
#blazor-error-ui {
    background: #fff3cd;
    bottom: 0;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    display: none;
    left: 0;
    padding: 1rem;
    position: fixed;
    width: 100%;
    z-index: 1050;
    border-top: 1px solid #ffeeba;
}