/* Custom CSS for COSHH Website */

:root {
    --primary-color: #1e3a8a;
    --secondary-color: #f97316;
    --success-color: #16a34a;
    --warning-color: #eab308;
    --danger-color: #dc2626;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --text-muted: #6b7280;
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #374151;
}

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

/* Custom Bootstrap color overrides */
.bg-primary {
    background-color: var(--primary-color) !important;
}

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

.btn-primary:hover {
    background-color: #1e40af;
    border-color: #1e40af;
    transform: translateY(-2px);
    transition: all 0.3s ease;
}

.btn-warning {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

.btn-warning:hover {
    background-color: #ea580c;
    border-color: #ea580c;
    color: white;
    transform: translateY(-2px);
    transition: all 0.3s ease;
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

/* Card Animations */
.card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.requirement-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(30, 58, 138, 0.2);
}

/* Navigation */
.navbar {
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

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

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

/* Section Spacing */
section {
    padding: 80px 0;
}

/* Typography */
.display-4, .display-5 {
    font-weight: 700;
    line-height: 1.2;
}

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

/* Badges */
.badge {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
}

/* Accordion Customization */
.accordion-button {
    font-weight: 600;
    background-color: #f8fafc;
    border: none;
}

.accordion-button:not(.collapsed) {
    background-color: var(--primary-color);
    color: white;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
}

/* Alert Customization */
.alert {
    border: none;
    border-radius: 0.75rem;
    font-weight: 500;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}

.alert-success {
    background-color: #dcfce7;
    color: #166534;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
}

/* Image Styling */
img {
    border-radius: 0.75rem;
}

.card-img-top {
    border-radius: 0.75rem 0.75rem 0 0;
}

/* Button Animations */
.btn {
    transition: all 0.3s ease;
    font-weight: 600;
    border-radius: 0.5rem;
}

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

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.125rem;
}

/* Icon Styling */
.bi {
    vertical-align: -0.125em;
}

/* List Styling */
.list-unstyled li {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background-color: var(--dark-color) !important;
}

footer a:hover {
    color: var(--secondary-color) !important;
    transition: color 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .btn-lg {
        padding: 0.625rem 1.5rem;
        font-size: 1rem;
    }
}

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

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

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Utilities */
.text-white-50 {
    color: rgba(255, 255, 255, 0.5) !important;
}

.shadow-lg {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15) !important;
}

.rounded-3 {
    border-radius: 0.75rem !important;
}

/* Hover Effects for Interactive Elements */
.card-body:hover .bi {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* Progress Indicators */
.progress {
    height: 8px;
    border-radius: 4px;
}

.progress-bar {
    background-color: var(--primary-color);
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: #1e40af;
}

/* Focus States for Accessibility */
.btn:focus,
.nav-link:focus,
.accordion-button:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    footer,
    .btn {
        display: none !important;
    }
    
    .hero-section {
        background: white !important;
        color: black !important;
    }
    
    .card {
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
}