/* Custom CSS for Castroca's Knowledge Vault */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(33, 37, 41, 0.95) !important;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Cards */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 15px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.card-body {
    border-radius: 15px;
}

/* Buttons */
.btn {
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 12px 30px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #fd7e14 100%);
    border: none;
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #e83e8c 100%);
    border: none;
}

/* Badges */
.badge {
    border-radius: 20px;
    padding: 8px 16px;
    font-weight: 500;
}

/* Icons */
.fa-3x {
    transition: transform 0.3s ease;
}

.card:hover .fa-3x {
    transform: scale(1.1);
}

/* Sections */
section {
    padding: 80px 0;
}

.bg-light {
    background-color: #f8f9fa !important;
}

/* Typography */
.display-3, .display-5 {
    font-weight: 700;
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
        padding: 60px 0;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    section {
        padding: 60px 0;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Modal Styles */
.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    border-radius: 0 0 15px 15px;
}

/* Form Styles */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Alert Styles */
.alert {
    border-radius: 10px;
    border: none;
    padding: 15px 20px;
}

/* Progress Bar */
.progress {
    border-radius: 10px;
    height: 8px;
}

.progress-bar {
    border-radius: 10px;
}

/* Tooltip */
.tooltip {
    font-size: 0.875rem;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

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

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .hero-section {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .card {
        border: 1px solid #ddd;
        box-shadow: none;
    }
}