:root {
    --primary-color: #635bff;
    --primary-light: #7c8cf8;
    --primary-dark: #5469d4;
    --success-color: #00d924;
    --dark-color: #0042aa;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --text-color: #212529;
    --border-color: #dee2e6;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-hover: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Bootstrap overrides */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

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

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

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

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

/* Custom styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(0,0,0,0.03) 1px, transparent 0);
    background-size: 24px 24px;
}

.min-vh-75 {
    min-height: 75vh;
}

/* Navigation */
.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
}

.navbar {
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}

/* Cards */
.card {
    transition: all 0.2s ease-in-out;
}

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

/* Flash messages */
#flash-messages {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1055;
    max-width: 400px;
}

#flash-messages .alert {
    margin-bottom: 0.5rem;
    box-shadow: var(--shadow-hover);
}

/* Forms */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(99, 91, 255, 0.25);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tables */
.table th {
    border-top: none;
    font-weight: 600;
    color: var(--medium-gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table-hover tbody tr:hover {
    background-color: rgba(99, 91, 255, 0.05);
}

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

.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .hero .card {
        transform: none !important;
    }
    
    #flash-messages {
        left: 1rem;
        right: 1rem;
        max-width: none;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body.p-5 {
        padding: 2rem !important;
    }
}

/* Loading states */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

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

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

/* Badge styles */
.badge {
    font-weight: 500;
}

/* Profile image styles */
.profile-img {
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: var(--shadow);
}

/* Hero section specific styles */
.hero .card {
    transition: transform 0.3s ease;
}

.hero .card:hover {
    transform: rotate(0deg) scale(1.02) !important;
}

/* Stats cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

/* Feature icons */
.feature-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

/* Custom utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.border-gradient {
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--primary-color), var(--primary-light)) 1;
}