/* Základní reset a nastavení */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0d1117;
    color: #c9d1d9;
}

body {
    line-height: 1.6;
}

/* Jazyková navigace napevno na vrchu */
.lang-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(22, 27, 34, 0.95);
    padding: 15px;
    display: flex;
    justify-content: center;
    gap: 30px;
    z-index: 1000;
    border-bottom: 1px solid #30363d;
}

.lang-nav a {
    color: #58a6ff;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: color 0.3s;
}

.lang-nav a:hover {
    color: #1f6feb;
}

/* Sekce jazyků a oddělovače */
.lang-section {
    padding-top: 55px; /* Kompenzace fixní navigace */
}

.border-top {
    border-top: 5px solid #30363d;
}

/* Hero sekce s fotkou */
.hero {
    height: 70vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.hero-content {
    max-width: 800px;
    background: rgba(13, 17, 23, 0.75);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #30363d;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.hero h1 {
    font-size: 3rem;
    color: #ffffff;
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(88, 166, 255, 0.5);
}

.hero p {
    font-size: 1.2rem;
    color: #8b949e;
}

/* Kontejnery obsahu */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 60px 20px;
}

.bg-dark-cool {
    background-color: #161b22;
    max-width: 100%;
    padding-left: calc((100% - 1100px) / 2 + 20px);
    padding-right: calc((100% - 1100px) / 2 + 20px);
}

h2 {
    font-size: 2.2rem;
    color: #ffffff;
    margin-bottom: 40px;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: #58a6ff;
}

/* Grid na karty (Záliby) */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(88, 166, 255, 0.2);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover; /* Ořízne fotku aby seděla do poměru */
}

.card h3 {
    padding: 20px 20px 10px 20px;
    color: #ffffff;
}

.card p {
    padding: 0 20px 20px 20px;
    color: #8b949e;
}

/* Úspěchy - řádkový layout prokládaný s fotkami */
.achievements {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 40px;
}

.achievement-item.reverse {
    flex-direction: row-reverse;
}

.achievement-text {
    flex: 1;
}

.achievement-text h3 {
    font-size: 1.5rem;
    color: #ffffff;
    margin-bottom: 15px;
}

.achievement-text a {
    color: #58a6ff;
    text-decoration: none;
}

.achievement-text a:hover {
    text-decoration: underline;
}

.achievement-img {
    width: 350px;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #30363d;
}

/* Kontaktní sekce */
.contact-section {
    text-align: center;
}

.contact-section h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.contact-section p {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #21262d;
    color: #c9d1d9;
    text-decoration: none;
    font-weight: bold;
    border-radius: 6px;
    border: 1px solid #30363d;
    transition: background-color 0.2s, border-color 0.2s;
}

.btn:hover {
    background-color: #30363d;
    border-color: #8b949e;
    color: #ffffff;
}

/* Responzivita pro mobilní telefony */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .achievement-item, .achievement-item.reverse {
        flex-direction: column;
        text-align: center;
    }

    .achievement-img {
        width: 100%;
        height: auto;
    }
}