/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 6px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    max-width: 50px;
    max-height: 50px;
    width: auto;
    height: auto;
    background: #fff;
    border-radius: 4px;
    padding: 6px;
    object-fit: contain;
    display: block;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.login-btn {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 8px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.login-btn:hover {
    background: white;
    color: #1e3c72;
}

/* Navigation Styles */
.main-nav {
    background: #0f2447;
    padding: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-link {
    display: block;
    color: white;
    text-decoration: none;
    padding: 1rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.1);
    border-bottom-color: #4CAF50;
}

.dropdown-icon {
    margin-left: 5px;
    font-size: 0.8em;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #0f2447;
    min-width: 200px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    padding: 0.75rem 1.5rem;
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: rgba(255,255,255,0.1);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: center;
}

.hero-img {
    width: 150px !important;
    height: 100px !important;
    max-width: 150px !important;
    max-height: 100px !important;
    object-fit: contain !important;
    border-radius: 8px;
    background: rgba(255,255,255,0.9);
    padding: 10px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    display: block !important;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 300;
    opacity: 0.9;
}

/* Course Section */
.course-section {
    padding: 3rem 0;
}

.course-card {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
    border-top: 4px solid #1e3c72;
}

.course-title {
    font-size: 2.5rem;
    color: #1e3c72;
    margin-bottom: 2rem;
    font-weight: 700;
}

.course-actions {
    margin-bottom: 2rem;
}

.course-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: #1e3c72;
    color: white;
}

.btn-primary:hover {
    background: #2a5298;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(30,60,114,0.3);
}

.btn-secondary {
    background: #4CAF50;
    color: white;
}

.btn-secondary:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(76,175,80,0.3);
}

.btn-outline {
    background: transparent;
    color: #1e3c72;
    border-color: #1e3c72;
}

.btn-outline:hover {
    background: #1e3c72;
    color: white;
}

.course-details {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.course-info {
    display: flex;
    gap: 0.5rem;
}

.info-label {
    font-weight: 600;
    color: #666;
}

.info-value {
    color: #333;
}

.course-description h3 {
    color: #1e3c72;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.course-description p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: #555;
}

/* Additional Training */
.additional-training {
    margin-top: 3rem;
}

.additional-training h2 {
    color: #1e3c72;
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
}

.training-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.training-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 3px solid #4CAF50;
}

.training-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.training-card h3 {
    color: #1e3c72;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.training-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: #0f2447;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: #4CAF50;
}

.footer-section p {
    line-height: 1.6;
    opacity: 0.9;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: #4CAF50;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-compliance {
    display: flex;
    gap: 2rem;
}

.footer-compliance span {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-img {
        max-width: 40px;
        max-height: 40px;
        padding: 4px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-img {
        width: 120px !important;
        height: 80px !important;
        max-width: 120px !important;
        max-height: 80px !important;
        padding: 8px !important;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .course-title {
        font-size: 2rem;
    }
    
    .course-buttons {
        flex-direction: column;
    }
    
    .course-details {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-link {
        padding: 0.75rem 1rem;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(255,255,255,0.1);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .course-card {
        padding: 1.5rem;
    }
    
    .training-card {
        padding: 1.5rem;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for keyboard navigation */
.btn:focus,
.nav-link:focus,
.login-btn:focus {
    outline: 2px solid #4CAF50;
    outline-offset: 2px;
}

/* Loading states */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #1e3c72;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Course Analytics Section */
.course-analytics {
    background: #f8f9fa;
    padding: 3rem 0;
    border-top: 1px solid #e9ecef;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.analytics-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.analytics-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.analytics-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.analytics-content h4 {
    color: #1e3c72;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.analytics-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}