#quiz-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    margin-top: 3rem;
    margin-bottom: 3rem;
}

#quiz-box {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 2rem 2.5rem;
    border-radius: 1.2rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    min-width: 320px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    transition: background 0.3s, color 0.3s;
}

#quiz-question {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

#quiz-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.quiz-option-btn {
    padding: 0.7em 1em;
    border: 2px solid var(--accent-color, #FFD700);
    border-radius: 0.6em;
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border 0.2s;
}

.quiz-option-btn:hover:not([disabled]) {
    background: var(--accent-color, #FFD700);
    color: var(--button-hover-text, #222);
    border-color: var(--accent-color, #FFD700);
}

.quiz-option-btn[disabled] {
    opacity: 0.7;
    cursor: not-allowed;
}

#quiz-feedback {
    min-height: 2.5em;
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    font-weight: 500;
}

.quiz-feedback-correct {
    color: var(--success-color, #1bbf4c);
    background: var(--success-bg, #e6fbe9);
    border-radius: 0.4em;
    padding: 0.5em 0.7em;
    margin-bottom: 0.5em;
    display: inline-block;
}

.quiz-feedback-wrong {
    color: var(--error-color, #d32f2f);
    background: var(--error-bg, #ffeaea);
    border-radius: 0.4em;
    padding: 0.5em 0.7em;
    margin-bottom: 0.5em;
    display: inline-block;
}

#quiz-next-btn {
    display: none;
    padding: 0.6em 1.5em;
    border: none;
    border-radius: 0.5em;
    background: var(--accent-color, #FFD700);
    color: var(--button-hover-text, #222);
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 0.5em;
    transition: background 0.2s;
    align-self: center;
}

#quiz-next-btn:hover {
    background: #e6c200;
}

#quiz-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 18px 0 10px 0;
    font-weight: bold;
    gap: 10px;
}

#quiz-score,
#quiz-timer {
    background: var(--bg-primary, #fffbe6);
    color: var(--accent-color, #FFD700);
    border-radius: 0.7em;
    padding: 0.4em 1.1em;
    font-size: 1.08rem;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
    border: 2px solid var(--accent-color, #FFD700);
    letter-spacing: 0.5px;
    transition: background 0.2s, color 0.2s;
}

#quiz-timer {
    color: var(--success-color, #1bbf4c);
    border-color: var(--success-color, #1bbf4c);
}

#quiz-start-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    margin-bottom: 2rem;
}

#quiz-start-btn {
    padding: 1em 2.5em;
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(90deg, #FFD700 0%, #ffb300 100%);
    border: none;
    border-radius: 1.5em;
    box-shadow: 0 4px 24px rgba(255, 215, 0, 0.18);
    cursor: pointer;
    letter-spacing: 1px;
    margin-top: 1.5em;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    outline: none;
    position: relative;
    overflow: hidden;
}

#quiz-start-btn:hover,
#quiz-start-btn:focus {
    background: linear-gradient(90deg, #ffb300 0%, #FFD700 100%);
    transform: scale(1.05);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.25);
}

.quiz-end button {
    padding: 1em 2.5em;
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(90deg, #FFD700 0%, #ffb300 100%);
    border: none;
    border-radius: 1.5em;
    box-shadow: 0 4px 24px rgba(255, 215, 0, 0.18);
    cursor: pointer;
    letter-spacing: 1px;
    margin-top: 1.5em;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    outline: none;
    position: relative;
    overflow: hidden;
}

.quiz-end button:hover,
.quiz-end button:focus {
    background: linear-gradient(90deg, #ffb300 0%, #FFD700 100%);
    transform: scale(1.05);
    box-shadow: 0 8px 32px rgba(255, 215, 0, 0.25);
}

@media (max-width: 500px) {
    #quiz-box {
        padding: 1.2rem 0.5rem;
        min-width: 0;
        max-width: 98vw;
    }

    #quiz-status {
        flex-direction: column;
        gap: 6px;
    }

    #quiz-start-btn {
        font-size: 1.05rem;
        padding: 0.8em 1.2em;
    }
}

.modal {
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    min-width: 300px;
    position: relative;
}

.modal-content .close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.4rem;
    cursor: pointer;
}

.modal-content h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
    color: var(--text-primary);
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.modal-content input[type="text"],
.modal-content input[type="password"] {
    padding: 0.8em;
    border-radius: 0.6em;
    border: 2px solid #ccc;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.modal-content input:focus {
    border-color: #FFD700;
    outline: none;
}

.modal-content button {
    padding: 0.8em;
    background: linear-gradient(90deg, #FFD700 0%, #ffb300 100%);
    color: #3d3c3c;
    font-weight: bold;
    border: none;
    border-radius: 0.6em;
    cursor: pointer;
    transition: background 0.2s;
}

.modal-content button:hover {
    background: linear-gradient(90deg, #ffb300 0%, #FFD700 100%);
}

.modal-content>div>button {
    padding: 0.4em 1em;
    font-weight: 500;
    border: 1px solid #ddd;
    background: #f3f3f3;
    margin: 0 0.4em;
    border-radius: 0.4em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-content>div>button:hover {
    background-color: var(--bg-secondary);
    border-color: #FFD700;
}

.modal-content>div>button.active {
    background: #FFD700;
    color: var(--text-primary);
    border-color: #FFD700;
    font-weight: bold;
}

#scoreboard-section {
    background: var(--bg-secondary, #f4f4f4);
    padding: 2rem 1rem;
}

.scoreboard-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.scoreboard-table {
    background: var(--bg-primary, #fff);
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    min-width: 300px;
    max-width: 500px;
    width: 100%;
}

.scoreboard-table h3 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    color: var(--text-primary);
}

.scoreboard-table table {
    width: 100%;
    border-collapse: collapse;
}

.scoreboard-table th,
.scoreboard-table td {
    text-align: left;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid #ddd;
    font-size: 0.95rem;
}

.scoreboard-table th {
    background: var(--bg-secondary, #f9f9f9);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .scoreboard-wrapper {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 600px) {
    #quiz-next-btn {
        position: fixed;
        bottom: 1rem;
        left: 50%;
        transform: translateX(-50%);
        z-index: 999;
        width: calc(100% - 3rem);
        max-width: 300px;
    }
}