/* --- VARIABILI COLORI --- */
:root {
    --bg-light: #f8fafc;
    --text-dark: #1e293b;
    --green-eco: #10b981;
    --green-dark: #065f46;
    --gold: #f1c40f;
    --silver: #95a5a6;
    --bronze: #cd7f32;
    --white: #ffffff;
}

/* --- RESET E BASE --- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-light);
    margin: 0;
    padding: 40px 20px;
    color: var(--text-dark);
    line-height: 1.5;
}

h1 {
    text-align: center;
    color: var(--text-dark);
    font-size: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 30px;
}

/* --- BOTTONI ORDINAMENTO --- */
.sorting-buttons {
    text-align: center;
    margin-bottom: 30px;
}

.sort-button {
    display: inline-block;
    padding: 12px 25px;
    margin: 0 10px;
    background-color: var(--white);
    color: var(--green-eco);
    text-decoration: none;
    border-radius: 12px;
    border: 2px solid var(--green-eco);
    font-weight: 600;
    transition: all 0.3s ease;
}

.sort-button:hover {
    background-color: var(--green-eco);
    color: var(--white);
    transform: translateY(-2px);
}

.sort-button.active {
    background-color: var(--green-eco);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* --- TABELLA --- */
table {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    border-collapse: separate;
    border-spacing: 0;
    background-color: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

th, td {
    padding: 18px;
    text-align: center;
    border-bottom: 1px solid #edf2f7;
}

th {
    background-color: var(--green-eco);
    color: var(--white);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

/* --- COLORAZIONE PODIO DINAMICA (Basata su Classi) --- */

/* 1° Posto - ORO (Funziona ovunque sia la riga) */
tr.rank-gold {
    background-color: rgba(241, 196, 15, 0.08) !important;
}
tr.rank-gold td:first-child strong {
    color: var(--gold);
    font-size: 1.4rem;
    display: inline-block;
}

/* 2° Posto - ARGENTO */
tr.rank-silver {
    background-color: rgba(189, 195, 199, 0.08) !important;
}
tr.rank-silver td:first-child strong {
    color: var(--silver);
    font-size: 1.25rem;
}

/* 3° Posto - BRONZO */
tr.rank-bronze {
    background-color: rgba(205, 127, 50, 0.05) !important;
}
tr.rank-bronze td:first-child strong {
    color: var(--bronze);
    font-size: 1.15rem;
}

/* Stile base per la colonna posizione */
td strong {
    font-weight: 800;
    color: var(--text-dark);
}

/* Effetto al passaggio del mouse sulle righe */
tr:hover {
    background-color: #f1f5f9;
}

/* Arrotondamento angoli inferiori della tabella */
table tr:last-child td:first-child { border-bottom-left-radius: 20px; }
table tr:last-child td:last-child { border-bottom-right-radius: 20px; }

/* Rimuove l'ultima linea per pulizia estetica */
table tr:last-child td {
    border-bottom: none;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    body { padding: 20px 10px; }
    table { font-size: 0.8rem; }
    th, td { padding: 12px 8px; }
    h1 { font-size: 1.8rem; }
    .sort-button { padding: 10px 15px; margin: 5px; }
}