:root {
    --rows: 6;
    --cols: 7;
    --cell-size: 60px;
    --player1-color: #ffc107;
    --player2-color: #dc3545;
    --board-bg: #0d6efd;
    --empty-cell-bg: var(--bs-body-bg);
}

body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    font-family: "Comic Relief", system-ui;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: fit-content;
}

h1 {
    color: var(--bs-body-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    font-weight: 700;
}

.controls-wrapper {
    flex-wrap: wrap;
}

.info-box {
    background-color: var(--bs-tertiary-bg);
    border: 2px solid var(--bs-border-color);
    border-radius: 10px;
    padding: 10px 15px;
    min-width: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.info-label {
    font-size: 0.8rem;
    color: var(--bs-body-color);
    opacity: 0.7;
    text-transform: uppercase;
    font-weight: 600;
}

.info-value {
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.input-group .form-select {
    background-color: var(--bs-card-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}

.input-group .input-group-text {
    background-color: var(--bs-tertiary-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}

#game-container {
    position: relative;
}

#wrapper {
    display: grid;
    grid-template-columns: repeat(var(--cols), var(--cell-size));
    grid-template-rows: repeat(var(--rows), var(--cell-size));
    gap: 5px;
    background-color: var(--board-bg);
    border-radius: 10px;
    padding: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
}

.cell {
    width: var(--cell-size);
    height: var(--cell-size);
    border-radius: 50%;
    background-color: var(--empty-cell-bg);
    cursor: pointer;
    transition: background-color 0.2s;
    position: relative;
    box-shadow: inset 0 3px 5px rgba(0,0,0,0.3);
}

.cell.player1 {
    background-color: var(--player1-color);
    animation: drop 0.4s ease-out;
}

.cell.player2 {
    background-color: var(--player2-color);
    animation: drop 0.4s ease-out;
}

.cell.winning-cell {
    animation: pulse 0.4s ease-out;
    box-shadow: inset 0 3px 5px rgba(0,0,0,0.3), 0 0 20px rgba(255, 255, 255, 0.6);
}

@keyframes drop {
    from {
        transform: translateY(-300px);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

.winning-line {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.8);
    height: 10px;
    border-radius: 5px;
    transform-origin: left center;
    animation: grow 0.5s ease-out;
}

@keyframes grow {
    from {
        width: 0;
    }
    to {
        /* width is set dynamically */
    }
}

.modal-content {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    border: 1px solid var(--bs-border-color);
}