:root {
    --primary-color: #0052cc;
    --tertiary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --white-color: #ffffff;
    --font-family: sans-serif;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font-family);
    line-height: 1.6;
    background-color: var(--light-color);
    color: var(--dark-color);
}

/* --- Test Page --- */
.test-container {
    max-width: 800px;
    margin: 2rem auto;
    background: var(--white-color);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    overflow: hidden;
}
.test-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background-color: var(--dark-color);
    color: var(--white-color);
}
.test-header h1 {
    font-size: 1.5rem;
}
.timer {
    font-size: 1.2rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
}
.question-area {
    padding: 2rem;
}
.passage-area {
    background: #f0f0f0;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}
.audio-player-area {
    margin-bottom: 1.5rem;
}
audio {
    width: 100%;
}
#question-number {
    font-size: 0.9rem;
    color: var(--tertiary-color);
    margin-bottom: 0.5rem;
}
#question-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 2rem;
}
.options-container .option {
    margin-bottom: 1rem;
}
.options-container label {
    display: block;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.options-container input[type="radio"] {
    display: none;
}
.options-container input[type="radio"]:checked + label {
    border-color: var(--primary-color);
    background-color: #e6f0ff;
    font-weight: 600;
}
.test-navigation {
    padding: 1.5rem;
    background: var(--light-color);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #eee;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}
.modal-content {
    background: var(--white-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    max-width: 500px;
}
.modal-content h2 {
    margin-bottom: 1rem;
}
.modal-content p {
    margin-bottom: 1.5rem;
}


/* Notivikasi */
.toast {
    position: fixed;
    bottom: 30px;
    left: 30px;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 15px; 
    color: white;
    font-size: 1rem;
    font-weight: 500;
    visibility: hidden;
    opacity: 0;
    transform: translateY(50px); 
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55); 
    z-index: 9999;
}

.toast.show {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background-color: #4CAF50;
}

.toast.error {
    background-color: #f44336; 
}

.toast i {
    font-size: 1.5rem;
}

/* soal */
.question-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 10px;
    margin-top: 1.5rem;
    max-height: 300px; 
    overflow-y: auto;
    padding: 5px;
}

.question-nav-btn {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: var(--light-color);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.question-nav-btn:hover {
    background-color: #e0e0e0;
    border-color: #ccc;
}

.question-nav-btn.current {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
}

.question-nav-btn.answered {
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.test-navigation {
    padding: 1.5rem;
    background: var(--light-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
}

.test-navigation #jump-to-btn {
    flex-grow: 0; 
}

.question-nav-content {
    padding: 1.5rem 2rem;
}

.question-nav-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}
.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}
.legend-color {
    width: 18px;
    height: 18px;
    border: 1px solid #ddd;
    border-radius: 50%;
    background-color: var(--light-color);
}
.legend-color.current {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.legend-color.answered {
    background-color: #d4edda;
    border-color: #c3e6cb;
}


.question-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
    max-height: 280px;
    overflow-y: auto;
    padding: 10px; 
}

.question-nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%; 
    border: 1px solid #ddd;
    background-color: var(--light-color);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    display: flex;
    align-items: center;
    justify-content: center;
}

.question-nav-btn:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.question-nav-btn.current {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.question-nav-btn.answered {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

@media (max-width: 480px) {
    .question-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .question-nav-content {
        padding: 1rem 1.5rem;
    }
}


@media (max-width: 768px) {
    .test-container {
        width: 90%;
    }
    .modal-content {
        width: 80%;
    }
    .modal-content h2 {
        margin-bottom: 1em;
    }
    .modal-content p {
        margin-bottom: 1.5rem;
        font-size: 0.8em;
    }
    .question-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .question-nav-content {
        padding: 1rem 1.5rem;
    }
}

@media (max-width: 480px) {
    #prev-btn, #jump-to-btn, #next-btn, #finish-section-btn {
        padding: 7px 11px;
        border-radius: 15px;
        font-size: 0.5em;
    }
    .question-area {
        font-size: 0.8em;
    }
    .test-header h1 {
        font-size: 1em;
    }
    .test-header .timer {
        font-size: 1em;
    }
    .test-container {
        width: 90%;
    }
    .modal-content {
        width: 80%;
    }
    .modal-content h2 {
        margin-bottom: 1em;
    }
    .modal-content p {
        margin-bottom: 1.5rem;
        font-size: 0.8em;
    }
    .question-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .question-nav-content {
        padding: 1rem 1.5rem;
    }
}