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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: #fafafa;
    color: #1a1a1a;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.logo {
    font-size: 2.4rem;
    font-weight: 700;
    color: #1a1a1a;
    text-decoration: none;
    font-family: 'Source Sans 3', sans-serif;
}

.logo .bitcoin-symbol {
    color: #e11d48;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-menu > li > a {
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu > li > a:hover {
    color: #e11d48;
}

/* Navigation Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.dropdown-arrow {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: 8px;
    padding: 1rem 0;
    min-width: 220px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

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

.nav-dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.nav-dropdown-menu a:hover {
    background: #f8fafc;
    color: #e11d48;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #1a1a1a;
    transition: all 0.3s ease;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

p {
    margin-bottom: 1.5rem;
}

.section-title {
    margin-bottom: 1.5rem;
    text-align: center;
    color: #1a1a1a;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    text-align: center;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Content Sections */
.content-section {
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
}

.section-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Breadcrumbs */
.breadcrumbs-section {
    background: white;
    padding: 0.5rem 2rem;
    margin-top: 100px; 
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    display: block;
    width: 100%;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    font-size: 0.85rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0.5rem 0;
}

.breadcrumbs a {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs a:hover {
    color: #e11d48;
    text-decoration: underline;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: #ccc;
}

.breadcrumb-current {
    color: #1a1a1a;
    font-weight: 600;
}

.content-section:first-of-type {
    padding-top: 2rem;
}

/* Section background variants */
.bitcoin-info-section {
    background: white;
}

.freedom-section {
    background: #fff7ed;
}

.community-section {
    background: #eff6ff;
}

.vydělávání-section {
    background: #f0f9ff;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: #e11d48;
    color: #fff;
    box-shadow: 0 4px 20px rgba(225, 29, 72, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(225, 29, 72, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: #1a1a1a;
    border: 2px solid rgba(26, 26, 26, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: #ffffff;
    border-color: #e11d48;
    color: #e11d48;
    transform: translateY(-2px);
}

.external-icon {
    margin-left: 0.25rem;
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    cursor: pointer;
    text-decoration: none;
    display: block;
    color: inherit;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(225, 29, 72, 0.15);
    border-color: #e11d48;
    text-decoration: none;
    color: inherit;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #e11d48;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.feature-text {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.feature-link {
    color: #e11d48;
    font-weight: 600;
    transition: color 0.3s ease;
}

.feature-card:hover .feature-link {
    color: #be185d;
}

/* Footer */
footer {
    background: #1a1a1a;
    color: #ffffff;
    padding: 3rem 2rem 1rem;
}

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

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

.footer-section h3 {
    color: #e11d48;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #e11d48;
}

/* Footer items without links - less prominent */
.footer-section ul li:not(:has(a)) {
    color: #777777;
}

/* Jednadvacítka Map */
.jednadvacitka-map {
    margin-bottom: 1rem;
    margin-top: -1rem;
}

.21-map-container {
    width: 120px;
    height: 80px;
    position: relative;
}

.jednadvacet-map-image {
    width: 150px;
    height: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.jednadvacitka-map p {
    font-size: 0.9rem;
    color: #999;
    margin-bottom: 1rem;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1rem;
    text-align: center;
    color: #999;
}

.footer-bottom a {
    color: #e11d48;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #fbbf24;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .nav-dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: none;
        padding: 0.5rem 0;
    }
    
    .nav-dropdown-menu a {
        padding: 0.5rem 0;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        gap: 0;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu > li > a {
        display: block;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }

    .content-section {
        padding: 3rem 1.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .breadcrumbs-section {
        margin-top: 60px;
    }
    
    .breadcrumbs {
        flex-wrap: wrap;
        padding: 0.3rem 0;
    }
}

@media (max-width: 600px) {
    .section-title {
        font-size: 1.7rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }
}