:root {
    --spring: #4caf50;
    --summer: #ffc107;
    --fall: #ff9800;
    --winter: #2196f3;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    color: #1a1a1a;
    background: #fafafa;
}

.navbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.nav-link {
    padding: 0.25rem 0.5rem;
    text-decoration: none;
    color: #333;
    border-radius: 3px;
    white-space: nowrap;
}

.nav-link:hover {
    background: #f0f0f0;
}

main h1 {
    margin-top: 0;
}

table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1rem;
}

th, td {
    border: 1px solid #ddd;
    padding: 0.5rem;
    text-align: left;
}

th {
    background: #f5f5f5;
}

.card {
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    padding: 1rem;
    background: #fff;
    margin-bottom: 1rem;
}

.in-season {
    background-color: rgba(76, 175, 80, 0.1);
}

.current-day {
    font-weight: bold;
    background-color: rgba(255, 193, 7, 0.2);
}

body[data-season="spring"] { border-top: 3px solid var(--spring); }
body[data-season="summer"] { border-top: 3px solid var(--summer); }
body[data-season="fall"]   { border-top: 3px solid var(--fall); }
body[data-season="winter"] { border-top: 3px solid var(--winter); }

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
    }
    .nav-link {
        display: block;
    }
    table {
        font-size: 0.875rem;
    }
    th, td {
        padding: 0.375rem;
    }
}