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

:root {
    /* Premium Color Palette */
    --brand-primary: #1e3a8a; /* Deep Indigo / Navy */
    --brand-secondary: #3b82f6; /* Bright Blue */
    --brand-accent: #f59e0b; /* Golden Amber */
    
    --bg-light: #f8fafc; /* Very soft grayish blue */
    --bg-card: #ffffff;
    --bg-dark: #0f172a;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* Shadow scale */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-soft: 0 20px 40px -15px rgba(0, 0, 0, 0.05);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

/* Premium Cards */
.card {
    border: none;
    border-radius: var(--radius-lg);
    background-color: var(--bg-card);
    box-shadow: var(--shadow-soft);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Premium Buttons */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-secondary), var(--brand-primary));
    border: none;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    box-shadow: 0 6px 15px rgba(30, 58, 138, 0.3);
    transform: translateY(-1px);
}

/* Dashboard Sidebar */
.premium-sidebar {
    background: var(--bg-dark);
    /* background: linear-gradient(180deg, var(--bg-dark), #1e293b); */
    border-right: 1px solid rgba(255,255,255,0.05);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.premium-sidebar .nav-link {
    color: var(--text-muted);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.premium-sidebar .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.premium-sidebar .nav-link.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.2), transparent);
    border-left: 3px solid var(--brand-secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.premium-sidebar .nav-link i {
    font-size: 1.1rem;
    margin-right: 0.5rem;
    vertical-align: middle;
}

/* Navbar */
.premium-navbar {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* Glassmorphism utility */
.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);
}

/* Tables */
.table {
    border-collapse: separate;
    border-spacing: 0 0.5rem;
}

.table th {
    border-bottom: none;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    font-weight: 600;
    padding: 1rem;
}

.table td {
    background: #fff;
    border-top: 1px solid transparent;
    border-bottom: 1px solid transparent;
    padding: 1rem;
    vertical-align: middle;
}

.table td:first-child {
    border-left: 1px solid transparent;
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.table td:last-child {
    border-right: 1px solid transparent;
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.table tbody tr {
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.table tbody tr:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 600;
    border-radius: 1rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Inputs */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1rem;
    box-shadow: none;
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--brand-secondary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}