/* =============== Base =============== */
body {
    margin: 0;
    padding: 1rem;
    box-sizing: border-box;
    font-family: system-ui, sans-serif;
    text-align: center;
    background-color: #f7f7f7;
}

h1 {
    margin: 2rem 0;
    font-size: clamp(1.5rem, 4vw, 2rem);
    text-align: center;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: clamp(280px, 90vw, 600px);
    margin: 0 auto;
    padding: 0 1rem;
}

/* =============== Game actions =============== */
.game-actions {
    display: flex;
    gap: 10px;
    width: 100%;
    padding: 0.75rem 0.875rem;
    border: 1px dashed #ccc; 
    border-radius: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

#player1, #player2, #mode {
    flex: 1 1 auto;
    padding: 0.4rem 0.6rem;
    border: 0.5px solid #ccc;
    border-radius: 0.375rem;
    font-size: clamp(0.7rem, 3vw, 1rem);
    min-width: 80px;
    max-width: 100%;
}

#mode {
    cursor: pointer;
}

#player1:focus, #player2:focus, #mode:focus {
    outline-color: skyblue;
}

#startBtn, #resetBtn {
    flex: 0 0 auto;
    padding: 0.4rem 0.8rem;
    border-radius: 0.375rem;
    border: none;
    font-size: clamp(0.7rem, 3vw, 1rem);
    background-color: skyblue;
    cursor: pointer;
    transition: all 0.15s ease;
}

#resetBtn {
    background-color: rgb(3, 97, 160);
    color: white;
}

#startBtn:hover, #resetBtn:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 6px rgba(168, 224, 246, 0.705);
}

/* =============== Gameboard =============== */
.gameboard {
    display: grid;
    grid-template-columns: repeat(3, minmax(80px, 1fr));
    gap: 10px;
    margin: 1rem 0;
    width: 100%;
    max-width: 360px;
    aspect-ratio: 1 / 1;
}

.cell {
    aspect-ratio: 1 / 1;
    border: 2px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(2rem, 6vw, 3rem);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.1s ease;
}

.cell:hover:not(.disabled) {
    transform: scale(0.98);
    background-color: rgba(135, 207, 235, 0.202);
    border: 2px solid skyblue;
}

.cell.disabled {
    cursor: default;
    pointer-events: none;
    opacity: 0.5;
}

/* =============== Player marker colors =============== */
.X-cell {
    color: #007BFF;
}

.O-cell {
    color: #FF3B3B;
}

/* =============== Live result =============== */
.liveResult {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: clamp(0.7rem, 3vw, 1rem);
    margin-top: 0.875rem;
    padding: 0.75rem 0.875rem;
    border: 1px dashed #c1c1c1be; 
    border-radius: 0.75rem;
    width: 100%;
}

.liveResult div {
    padding: 0.3rem 0.5rem;
    border: 0.5px solid #bababa;
    background-color: #fff;
    border-radius: 0.375rem;
}

.liveResult span {
    margin-left: 0.2rem;
    font-weight: 600;
}

/* =============== Media Query =============== */
@media (max-width: 480px) {
    h1 {
        margin-top: 0.5rem;
        margin-bottom: 1rem;
    }
    .game-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    .game-actions #player1, .game-actions #player2, #mode {
        width: 100%;
        box-sizing: border-box;
    }

    .button-group {
        display: flex;
        gap: 6px;
        width: 100%;
    }

    .button-group #startBtn, .button-group #resetBtn {
        flex: 1 1 50%;
    }
}