/* Základní reset a proměnné */
:root {
    --primary-color: #0056b3;
    --text-color: #333333;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-light);
}

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

/* Action Bar */
.action-bar {
    background-color: var(--primary-color);
    padding: 10px 0;
}

.action-bar .container {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

.action-bar a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background 0.2s;
}

.action-bar a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Hlavička a Navigace */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo strong {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    gap: 20px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}

/* Hero sekce */
.hero {
    background-color: var(--white);
    padding: 80px 20px;
    text-align: center;
    border-bottom: 1px solid #eaeaea;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* Aktuality (Grid) */
.news {
    padding: 60px 20px;
}

.news h2 {
    margin-bottom: 30px;
    font-size: 2rem;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--white);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.news-card:hover {
    transform: translateY(-5px);
}

.news-card .date {
    font-size: 0.85rem;
    color: #888;
    display: block;
    margin-bottom: 10px;
}

.news-card h3 {
    margin-bottom: 10px;
    font-size: 1.25rem;
}

/* Responzivita pro mobily */
@media (max-width: 768px) {
    .main-nav {
        display: none; /* Skryjeme na mobilu, ovládá to JS */
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    }
    
    .main-nav.active {
        display: flex;
    }

    .mobile-toggle {
        display: block;
    }

    .action-bar .container {
        justify-content: center;
    }
}