* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #151720;
    color: white;
    margin: 0;
    min-height: 100vh;
}

.main-container {
    display: flex;
    gap: 25px;
    width: 100%;
    min-height: 100vh;
    padding: 30px;
}

.game-card,
.results-card {
    background: #202330;
    padding: 30px;
    border-radius: 15px;
    border: 1px solid #35394a;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: 0.3s;
}

.game-card {
    flex: 3;
    min-width: 0;
}

.results-card {
    flex: 1;
    min-width: 240px;
}

.game-card:hover,
.results-card:hover {
    border-color: #8b78ff;
}

h2 {
    font-size: 30px;
    color: #b5a5ff;
    margin-top: 0;
    margin-bottom: 12px;
}

h3 {
    font-size: 21px;
    color: #b5a5ff;
    margin-top: 0;
    margin-bottom: 22px;
}

#passage {
    font-size: 19px;
    line-height: 2;
    padding: 25px;
    margin-top: 25px;
    min-height: 200px;
    overflow-wrap: anywhere;
    background: #171923;
    border: 1px solid #393d4f;
    border-radius: 12px;
    color: #c7cad5;
    transition: 0.3s;
}

#passage:hover {
    border-color: #6558a8;
}

.correct {
    color: #4ade80;
}

.wrong {
    color: #ff647c;
    background: #44232d;
    border-radius: 3px;
}

.controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 25px;
}

button {
    padding: 13px 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    background: #8b78ff;
    color: white;
    transition: 0.3s;
}

button:hover:not(:disabled) {
    background: #a596ff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 120, 255, 0.25);
}

button:active:not(:disabled) {
    transform: scale(0.97);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#stop-btn {
    background: #393d4f;
    color: white;
}

#stop-btn:hover:not(:disabled) {
    background: #50566c;
    box-shadow: none;
}

.results-card p {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: #bfc3d1;
    margin: 15px 0;
    padding: 15px;
    background: #292d3c;
    border: 1px solid transparent;
    border-radius: 9px;
    transition: 0.3s;
}

.results-card p:hover {
    background: #35394b;
    border-color: #4a4f65;
    transform: translateX(3px);
}

.results-card p span {
    color: #4ade80;
    font-size: 19px;
    font-weight: bold;
}

::selection {
    background: #8b78ff;
    color: white;
}

@media (max-width: 800px) {
    .main-container {
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }

    .game-card {
        flex: auto;
    }

    .results-card {
        flex: auto;
        min-width: 0;
    }

    h2 {
        font-size: 26px;
    }

    #passage {
        font-size: 17px;
        padding: 20px;
    }
}

@media (max-width: 450px) {
    .main-container {
        padding: 12px;
        gap: 15px;
    }

    .game-card,
    .results-card {
        padding: 18px;
        border-radius: 12px;
    }

    h2 {
        font-size: 23px;
    }

    h3 {
        font-size: 19px;
    }

    #passage {
        font-size: 15px;
        line-height: 1.9;
        padding: 15px;
        min-height: 160px;
    }

    .controls {
        gap: 10px;
    }

    button {
        padding: 11px 17px;
        font-size: 14px;
    }

    .results-card p {
        padding: 12px;
        font-size: 14px;
    }
}