:root {
    --primary-color: #36454F;
    --text-color: #2c3e50;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Georgia, 'Times New Roman', serif;
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    margin-top: 2rem;
}

h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

.header-top {
    background-color: #fff;
    border-bottom: 2px solid var(--primary-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

.logo:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.navbar {
    padding: 0.8rem 0;
}

.navbar-nav .nav-link {
    color: var(--text-color);
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

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

main {
    margin-top: 80px;
}

.hero-section {
    position: relative;
    background: linear-gradient(rgba(54, 69, 79, 0.7), rgba(54, 69, 79, 0.7)), url('../images/hero-czech-rocks.jpg') center/cover no-repeat;
    color: #fff;
    padding: 6rem 0;
    text-align: center;
}

.hero-section h1 {
    color: #fff;
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-section p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto;
}

.section-content {
    padding: 4rem 0;
}

.section-content:nth-child(even) {
    background-color: var(--light-bg);
}

.content-image {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin: 1.5rem 0;
}

.content-image.img-left {
    float: left;
    margin-right: 2rem;
    margin-bottom: 1rem;
    max-width: 45%;
}

.content-image.img-right {
    float: right;
    margin-left: 2rem;
    margin-bottom: 1rem;
    max-width: 45%;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 2rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

.btn-primary:hover {
    background-color: #2c3840;
    border-color: #2c3840;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
}

.faq-item h3 {
    font-size: 1.2rem;
    margin-top: 0;
}

footer {
    background-color: var(--primary-color);
    color: #fff;
    padding: 3rem 0 1.5rem;
}

footer h3 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

footer a {
    color: #fff;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

footer a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

footer ul {
    list-style: none;
    padding: 0;
}

footer ul li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    margin-top: 2rem;
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.disclaimer-box {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 1.5rem;
    margin: 2rem 0;
}

.disclaimer-box h3 {
    color: #856404;
    font-size: 1.3rem;
}

.disclaimer-box p {
    color: #856404;
    margin-bottom: 0.5rem;
}

.contact-form .form-control {
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-family: Georgia, 'Times New Roman', serif;
}

.contact-form .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(54, 69, 79, 0.15);
}

.contact-info {
    background-color: var(--light-bg);
    padding: 2rem;
    border-left: 4px solid var(--primary-color);
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    border-top: 2px solid var(--primary-color);
    padding: 1.5rem;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 1001;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner p {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.educational-notice {
    background-color: #e7f3ff;
    border-left: 4px solid #0066cc;
    padding: 1.5rem;
    margin: 2rem 0;
}

.educational-notice p {
    color: #004080;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section p {
        font-size: 1.1rem;
    }
    
    .section-content {
        padding: 2.5rem 0;
    }
    
    .content-image.img-left,
    .content-image.img-right {
        float: none;
        margin: 1.5rem auto;
        max-width: 100%;
        display: block;
    }
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}