:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --info-color: #0ea5e9;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --background-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 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);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background-color: var(--background-color);
    color: var(--text-main);
    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Navbar Enhancements */
.navbar {
    background: rgba(79, 70, 229, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: -0.025em;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    transition: var(--transition);
    opacity: 0.9;
}

.nav-link:hover {
    opacity: 1;
    transform: translateY(-1px);
}

/* Card Enhancements */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

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

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

/* Stat Cards */
.stat-card {
    position: relative;
    padding: 1.5rem;
    color: white;
}

.stat-card .icon-wrapper {
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.5rem;
    opacity: 0.2;
}

/* Table Enhancements */
.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.table {
    margin-bottom: 0;
}

.table th {
    background-color: #f1f5f9;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 1rem;
    border: none;
}

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

/* Buttons */
.btn {
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    font-weight: 600;
    border-radius: 2rem;
}

/* Login Page Specific */
.login-page {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

.login-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}
@media print {
    .navbar, .btn, .card-header button, .card-header i, .no-print, .dropdown, .navbar-toggler, .card:has(form) {
        display: none !important;
    }
    .container {
        width: 100% !important;
        max-width: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    .card {
        border: 1px solid #dee2e6 !important;
        box-shadow: none !important;
        margin-bottom: 20px !important;
        break-inside: avoid;
    }
    .card-body {
        padding: 0.5rem !important;
    }
    body {
        background-color: #fff !important;
        padding-top: 0 !important;
    }
    .table-responsive {
        overflow: visible !important;
    }
    .badge {
        border: 1px solid #ccc !important;
        color: #000 !important;
        background-color: transparent !important;
    }
}

/* Back to Top Button */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--info-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    border: none;
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
}

#backToTop:hover {
    background: var(--primary-hover);
    transform: translateY(-5px);
}

@media print {
    #backToTop {
        display: none !important;
    }
}