/* Modern Premium Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette - Premium Minimalist */
    --primary-color: #2563eb; /* Royal Blue */
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b; /* Slate */
    --success-color: #10b981; /* Emerald */
    --danger-color: #ef4444; /* Red */
    --warning-color: #f59e0b; /* Amber */
    --info-color: #3b82f6; /* Blue */
    
    /* Backgrounds */
    --bg-body: #f8fafc; /* Slate 50 */
    --bg-surface: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.8);
    
    /* Text */
    --text-primary: #1e293b; /* Slate 800 */
    --text-secondary: #64748b; /* Slate 500 */
    --text-light: #94a3b8; /* Slate 400 */
    
    /* Borders & Shadows */
    --border-color: #e2e8f0; /* Slate 200 */
    --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);
    
    /* Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Fonts */
    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

/* Cards & Containers */
.modern-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.glass-effect {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    transform: translateY(-1px);
    box-shadow: 0 6px 8px -1px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: var(--bg-body);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Form Elements */
.form-control, .form-select {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 0.625rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s;
    background-color: var(--bg-surface);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

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

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    background-color: var(--bg-body);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
}

.table td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table tr:last-child td {
    border-bottom: none;
}

.table-hover tbody tr:hover {
    background-color: rgba(37, 99, 235, 0.02);
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
    border-radius: 9999px;
    font-size: 0.75em;
}

/* 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;
}

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

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

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

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

/* Navbar/Header */
.navbar-custom {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

.modal-body {
    padding: 1.5rem;
}

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