/* Reset & základ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #121212;
    color: #f0f0f0;
    line-height: 1.6;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
}

/* Odkazy */
a {
    color: #ff4c4c;
    text-decoration: none;
    transition: 0.2s ease;
}

a:hover {
    text-decoration: underline;
}

/* Header */
header {
    background-color: #1e1e1e;
    border-bottom: 2px solid #ff4c4c;
    padding: 1rem 2rem;
    
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

/* Logo */
.logo {
    user-select: none;
    pointer-events: none;
    max-height: 60px;
    width: auto;
    display: block;
}

.logo img {
    max-height: 60px;
    width: auto;
    display: block;
}

/* NAVBAR */
nav {
    flex: 1;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0;
    margin: 1rem 0;
}

nav li {
    display: inline-block;
}

nav a {
    color: #f0f0f0;
    font-weight: bold;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.8s ease, color 0.8s ease;
    display: flex;
    align-items: center;
}

nav a:hover,
nav a.active {
    background-color: #ff4c4c;
    color: #ffffff;
}

/* Nadpis */
header h1 {
    font-size: 2rem;
    color: #ffffff;
    text-align: center;
    margin-top: 1rem;
    flex-basis: 100%;
}

/* Footer */
footer {
    background-color: #1e1e1e;
    color: #aaa;
    padding: 2rem 1rem;
    text-align: center;
    border-top: 1px solid #333;
    margin-top: 0;
}

footer a {
    color: #ff4c4c;
}

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

/* Responzivní styly */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: center;
    }

    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    header h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 1rem;
    }

    nav a {
        font-size: 0.95rem;
        padding: 0.4rem 0.8rem;
    }

    header h1 {
        font-size: 1.5rem;
        margin-top: 0.5rem;
    }
}