:root {
    --primary-color: #2c3e50;    /* Tmavě modrá - autorita */
    --secondary-color: #34495e;
    --accent-color: #3498db;     /* Světle modrá - akce */
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --light-bg: #f4f7f6;
    --text-dark: #2d3436;
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    margin: 0;
    line-height: 1.6;
}

/* Kontejner pro obsah */
.wrapper {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Hlavičky */
h1, h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 10px;
}

/* Tabulky */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th {
    background-color: var(--primary-color);
    color: white;
    padding: 12px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

td {
    padding: 12px;
    border-bottom: 1px solid #ddd;
}

tr:hover { background-color: #f1f2f6; }

/* Tlačítka */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

.btn-primary { background: var(--accent-color); color: white; }
.btn-secondary { background: #636e72; color: white; }
.btn-success { background: var(--success-color); color: white; }

.btn:hover { opacity: 0.8; transform: translateY(-1px); }

/* Formuláře */
input, select, textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.navbar {
    background: #2c3e50;
    color: white;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-left, .nav-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    font-weight: bold;
    text-decoration: none;
    color: white;
    font-size: 1.2rem;
    margin-right: 20px;
}

.nav-links a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 0.9rem;
    transition: 0.3s;
}

.nav-links a:hover {
    color: white;
}

.admin-divider {
    width: 1px;
    height: 30px;
    background: rgba(255,255,255,0.2);
    margin: 0 10px;
}

.admin-link {
    color: #ff7675 !important; /* Odlišení admin odkazů červenou barvou */
}

.badge {
    background: #e74c3c;
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: bold;
    margin-left: 5px;
}

.logout-btn {
    border: 1px solid #e74c3c;
    color: #e74c3c;
    padding: 5px 10px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.8rem;
    transition: 0.3s;
}

.logout-btn:hover {
    background: #e74c3c;
    color: white;
}