/* CSS Custom Properties */
:root {
    /* Purple Theme */
    --primary: 269 84% 48%; /* #6f42c1 */
    --primary-dark: 269 84% 38%; /* #5a359a */
    --primary-light: 269 84% 58%; /* #8454d6 */
    
    /* Accent Colors */
    --accent: 178 100% 45%; /* #00b4d6 */
    --accent-light: 178 100% 95%; /* #e6f9fc */
    
    /* Backgrounds */
    --background: 210 11% 98%; /* #f8f9fa */
    --surface: 0 0% 100%; /* #ffffff */
    --light: 210 17% 96%; /* #f1f3f4 */
    
    /* Text Colors */
    --text-primary: 210 11% 15%; /* #212529 */
    --text-secondary: 210 8% 46%; /* #6c757d */
    --text-muted: 210 6% 56%; /* #868e96 */
    
    /* Status Colors */
    --success: 142 71% 45%; /* #28a745 */
    --danger: 354 70% 54%; /* #dc3545 */
    --warning: 45 100% 51%; /* #ffc107 */
    
    /* Shadows */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    /* Border Radius */
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
}

/* Base Styles */
body {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--primary-dark)) 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: hsl(var(--text-primary));
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header Styles */
.header-icon {
    font-size: 4rem;
    color: hsl(var(--accent));
    text-shadow: var(--shadow-sm);
}

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

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

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

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

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

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

/* Card Styles */
.card {
    background: hsl(var(--surface));
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
}

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

.card-body {
    padding: 2rem;
}

/* Button Styles */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--primary-dark)) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, hsl(var(--primary-dark)) 0%, hsl(var(--primary)) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-accent {
    background: hsl(var(--accent));
    color: white;
    border: none;
}

.btn-accent:hover {
    background: hsl(var(--accent) / 0.9);
    color: white;
}

.btn-outline-primary {
    border: 2px solid hsl(var(--primary));
    color: hsl(var(--primary));
}

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

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

.btn-outline-secondary:hover {
    background: hsl(var(--text-secondary));
    border-color: hsl(var(--text-secondary));
    color: white;
}

.btn-success {
    background: hsl(var(--success));
    color: white;
}

.btn-success:hover {
    background: hsl(var(--success) / 0.9);
}

/* Input Styles */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid hsl(var(--light));
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 0.2rem hsl(var(--primary) / 0.25);
}

.input-group-text {
    background: hsl(var(--light));
    border: 2px solid hsl(var(--light));
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .form-control {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* Background Utilities */
.bg-light {
    background-color: hsl(var(--light)) !important;
}

.bg-accent-light {
    background-color: hsl(var(--accent-light)) !important;
}

/* Alert Styles */
.alert {
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
}

.alert-success {
    background: hsl(var(--success) / 0.1);
    color: hsl(var(--success));
    border-left: 4px solid hsl(var(--success));
}

.alert-danger {
    background: hsl(var(--danger) / 0.1);
    color: hsl(var(--danger));
    border-left: 4px solid hsl(var(--danger));
}

.alert-warning {
    background: hsl(var(--warning) / 0.1);
    color: hsl(45 100% 35%);
    border-left: 4px solid hsl(var(--warning));
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Loading Animation */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .header-icon {
        font-size: 3rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.25rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .header-icon {
        font-size: 2.5rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Custom Utilities */
.font-monospace {
    font-family: 'Courier New', Courier, monospace;
}

.fw-semibold {
    font-weight: 600;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

/* Focus Styles for Accessibility */
.btn:focus,
.form-control:focus {
    outline: 2px solid hsl(var(--primary));
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    body {
        background: white !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .btn {
        display: none !important;
    }
}