/* ===== ESTILOS GENERALES ===== */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 15px;
    background: #0d0d0d;
    color: white;
    font-family: Arial, sans-serif;
    text-align: center;
}

/* ===== MENÚ ===== */
.menu {
    margin: 20px auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    max-width: 900px;
}

button,
select {
    padding: 10px 16px;
    font-size: 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    min-height: 44px;
}

/* ===== TABLERO ===== */
#board {
    width: min(95vw, 640px);
    height: min(95vw, 640px);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    border: 4px solid white;
    border-radius: 8px;
    overflow: hidden;
}

/* Casillas */
.square {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: clamp(24px, 7vw, 50px);
    cursor: pointer;
    user-select: none;
    aspect-ratio: 1 / 1;
}

.white {
    background: #f0d9b5;
}

.black {
    background: #b58863;
}

.highlight {
    background: #4CAF50 !important;
}

.selected {
    outline: 3px solid yellow;
    outline-offset: -3px;
}

.whitePiece {
    color: white;
    text-shadow: 2px 2px 4px black;
}

.blackPiece {
    color: black;
}

/* ===== TEXTO ===== */
#status {
    font-size: clamp(18px, 4vw, 22px);
    margin: 15px 0;
    padding: 0 10px;
}

.scoreboard {
    font-size: clamp(18px, 4vw, 22px);
    margin-bottom: 15px;
    padding: 0 10px;
}

/* ===== TABLETS ===== */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .menu {
        flex-direction: column;
        align-items: center;
    }

    button,
    select {
        width: 100%;
        max-width: 320px;
        font-size: 16px;
    }

    #board {
        width: 95vw;
        height: 95vw;
        max-width: 600px;
        max-height: 600px;
    }
}

/* ===== CELULARES ===== */
@media (max-width: 480px) {
    body {
        padding: 8px;
    }

    .menu {
        margin: 10px auto;
        gap: 8px;
    }

    button,
    select {
        width: 100%;
        max-width: 100%;
        font-size: 15px;
        padding: 12px;
    }

    #board {
        width: 96vw;
        height: 96vw;
        border-width: 3px;
    }

    .square {
        font-size: clamp(22px, 8vw, 42px);
    }

    #status,
    .scoreboard {
        font-size: 16px;
        line-height: 1.4;
    }
}

/* ===== MÓVILES MUY PEQUEÑOS ===== */
@media (max-width: 360px) {
    .square {
        font-size: 20px;
    }

    button,
    select {
        font-size: 14px;
        padding: 10px;
    }

    #status,
    .scoreboard {
        font-size: 14px;
    }
}