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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    color: #e0e0e0;
    line-height: 1.6;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
    border-bottom: 2px solid #444;
}

header h1 {
    font-size: 2.5em;
    color: #ffd700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    margin-bottom: 10px;
}

.subtitle {
    color: #aaa;
    font-size: 1.1em;
}

.zones-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
}

.zone-item {
    position: relative;
}

.zone-button {
    padding: 12px 20px;
    font-size: 1em;
    background: linear-gradient(135deg, #333 0%, #444 100%);
    color: #ffd700;
    border: 2px solid #666;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.zone-button:hover {
    background: linear-gradient(135deg, #444 0%, #555 100%);
    border-color: #ffd700;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.zone-button.active {
    background: linear-gradient(135deg, #555 0%, #666 100%);
    border-color: #ffd700;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #2a2a2a;
    border: 2px solid #444;
    border-top: none;
    border-radius: 0 4px 4px 4px;
    padding: 15px;
    margin-top: -4px;
    min-width: max-content;
    z-index: 100;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    max-width: calc(100vw - 40px);
    max-height: 50vh;
    overflow-y: auto;
}

.submenu.hidden {
    display: none;
}

.submenu-section {
    margin-bottom: 0;
    min-width: 220px;
    flex: 0 0 auto;
}

.submenu-section:last-child {
    margin-bottom: 0;
}

.submenu-section h3 {
    color: #ffd700;
    font-size: 0.9em;
    text-transform: uppercase;
    margin-bottom: 8px;
    padding-bottom: 5px;
    border-bottom: 1px solid #444;
}

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

.submenu-section li {
    margin: 8px 0;
}

.submenu-section a {
    color: #aaa;
    text-decoration: none;
    transition: all 0.2s ease;
    display: block;
    padding: 5px 10px;
    border-radius: 3px;
}

.submenu-section a:hover {
    color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
}

.submenu-section a.active-location {
    color: #ffd700;
    background: rgba(255, 215, 0, 0.15);
    font-weight: bold;
}

main {
    background: #252525;
    padding: 30px;
    border-radius: 4px;
    border: 1px solid #444;
}

.welcome {
    text-align: center;
}

.welcome h2 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 1.8em;
}

.welcome p {
    color: #aaa;
    font-size: 1.1em;
}

/* Responsive design */
@media (max-width: 768px) {
    .zones-nav {
        flex-direction: column;
        align-items: center;
    }

    .zone-button {
        width: 100%;
        max-width: 300px;
    }

    .submenu {
        position: static;
        margin-top: 10px;
    }

    header h1 {
        font-size: 2em;
    }
}