:root {
    --white: rgba(215, 218, 220, 1);
    --lightGray: rgba(129, 131, 132, 1);
    --gray: rgba(86, 87, 88, 1);
    --darkGray: rgba(58, 58, 60, 1);
    --darkerGray: rgba(39, 39, 41, 1);
    --darkestGray: rgba(18, 18, 19, 1);
    --green: rgba(83, 141, 78, 1);
    --yellow: rgba(181, 159, 59, 1);
    --blue: rgba(133, 193, 249, 1);
    --blue-passive: rgba(133, 193, 249, 0.53);
    --red: rgba(227, 70, 70, 1);
    --solver-color: rgba(217, 199, 0, 1);
    --orange: rgba(255, 69, 0, 1);
    --cell-size: 20px;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    background-color: var(--darkestGray);
    color: var(--white);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
}

#leaderboard a {
    color: var(--blue);
    text-decoration: none;
    font-weight: bold;
    padding: 1rem 0;
    margin-top: 1rem;
}

#leaderboard a:hover {
    text-decoration: underline;
}

.game-container {
    position: relative;
    top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 500px;
}

#maze {
    display: grid;
    gap: 1px;
    padding: 1px;
    border-radius: 4px;
    margin: 0 auto;
    grid-template-columns: repeat(21, var(--cell-size));
}

.cell {
    width: var(--cell-size);
    height: var(--cell-size);
    border-radius: 2px;
}

.wall {
    background-color: var(--darkGray);
}

.player {
    background-color: var(--blue);
}

.start {
    background-color: var(--yellow);
}

.end {
    background-color: var(--green);
}

.path {
    background-color: var(--blue-passive);
}

.solver-path {
    background-color: var(--solver-color);
}

.computer {
    background-color: var(--orange);
}

.computer-path {
    background-color: rgba(255, 69, 0, 0.3);
}

#name-input-container {
    margin-bottom: 1rem;
}

#player-name {
    padding: 10px;
    font-size: 1rem;
    border: 2px solid var(--darkGray);
    border-radius: 4px;
    background-color: var(--darkestGray);
    color: var(--white);
    width: 100%;
    max-width: 300px;
    box-sizing: border-box;
}

#leaderboard {
    margin-top: 2rem;
    padding: 10px;
    background-color: var(--darkestGray);
    border-radius: 8px;
    width: 100%;
    max-width: 300px;
    box-sizing: border-box;
}

#leaderboard h3 {
    margin: 0 0 10px;
    font-size: 1.5rem;
}

#leaderboard-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 1rem;
}

#leaderboard-list li {
    padding: 5px;
    background-color: var(--darkerGray);
    border-radius: 4px;
    margin-bottom: 5px;
    text-align: left;
}

#leaderboard-list li:nth-child(odd) {
    background-color: var(--darkGray);
}

#countdown {
    margin-top: 20px;
    font-size: 3rem;
    font-weight: bold;
}

#results,
.controls {
    margin-top: 20px;
}

#start-button-container,
#reset-button-container {
    margin-top: 1rem;
}

#start-button,
#reset-button {
    padding: 10px 50px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#start-button {
    background-color: var(--green);
    color: var(--white);
}

#reset-button {
    background-color: var(--red);
    color: var(--white);
    margin-bottom: 30px;
}

#timer {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

#game-title {
    font-size: 5rem;
    font-weight: bold;
}

#computer-turn-message {
    font-size: 2rem;
    font-weight: bold;
    margin-top: 20px;
}

.controls {
    display: grid;
    grid-template-columns: repeat(3, 50px);
    grid-template-rows: repeat(2, 50px);
    gap: 0.5rem;
    justify-items: center;
    align-items: center;
    display: none;
}

button {
    font-family: inherit;
    font-weight: bold;
    height: 50px;
    width: 50px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    user-select: none;
    background-color: var(--lightGray);
    color: var(--white);
    display: flex;
    justify-content: center;
    align-items: center;
    text-transform: uppercase;
    transition: transform 0.1s ease;
}

button:active,
button.pressed {
    transform: translateY(3px);
    background-color: var(--darkGray);
}

.controls button:nth-child(1) {
    grid-area: 1 / 2;
}

.controls button:nth-child(2) {
    grid-area: 2 / 1;
}

.controls button:nth-child(3) {
    grid-area: 2 / 2;
}

.controls button:nth-child(4) {
    grid-area: 2 / 3;
}

.solve-button {
    grid-column: 1 / -1;
    background-color: var(--green);
    color: var(--white);
}

@media (max-width: 500px) {
    :root {
        --cell-size: 15px;
    }

    .controls {
        max-width: 250px;
    }

    button {
        height: 48px;
    }
}

@media (min-width: 501px) and (max-width: 768px) {
    :root {
        --cell-size: 18px;
    }
}

@media (min-width: 769px) {
    :root {
        --cell-size: 20px;
    }

    .game-container {
        max-width: 600px;
    }

    .controls {
        max-width: 300px;
    }
}