/* Katakana Quiz Specific Styles */

/* Sound Toggle Button */
.btn-sound-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.btn-sound-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-sound-toggle.sound-off {
    background: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.5);
}

.btn-sound-toggle.sound-off:hover {
    background: rgba(220, 53, 69, 0.3);
}

.btn-sound-toggle i {
    font-size: 1.1rem;
}

/* Quiz Header */
.quiz-header {
    background-color: var(--bg-primary);
    border-bottom: 2px solid var(--primary-color);
    padding: 10px 0;
}

.quiz-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quiz-header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.quiz-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.quiz-title i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.quiz-progress-header {
    background-color: var(--bg-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.quiz-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
}

.timer.warning {
    background-color: var(--primary-color);
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.btn-quit {
    background-color: var(--border-medium);
    color: var(--text-primary);
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-quit:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Quiz Setup Section */
.quiz-setup-section {
    padding: 100px 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    min-height: 100vh;
}

.setup-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.setup-header {
    margin-bottom: var(--spacing-xl);
}

.setup-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 2rem;
}

.setup-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.setup-options {
    margin-bottom: var(--spacing-xl);
}

.option-group {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.option-group h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.3rem;
}

.difficulty-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.difficulty-option, .mode-option {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
}

.difficulty-option:hover, .mode-option:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.difficulty-option.active, .mode-option.active {
    border-color: var(--white);
    background-color: rgba(255, 255, 255, 0.2);
}

.difficulty-option h4, .mode-option h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.difficulty-option p, .mode-option p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: var(--spacing-sm);
}

.difficulty-option[data-difficulty="favorites"] {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 77, 109, 0.1) 0%, rgba(255, 77, 109, 0.2) 100%);
    border: 2px solid rgba(255, 77, 109, 0.3);
    transition: all 0.3s ease;
}

.difficulty-option[data-difficulty="favorites"]:hover {
    background: linear-gradient(135deg, rgba(255, 77, 109, 0.2) 0%, rgba(255, 77, 109, 0.3) 100%);
    border-color: rgba(255, 77, 109, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 77, 109, 0.2);
}

.difficulty-option[data-difficulty="favorites"].active {
    border-color: #ff4d6d;
    background: linear-gradient(135deg, rgba(255, 77, 109, 0.3) 0%, rgba(255, 77, 109, 0.4) 100%);
    box-shadow: 0 8px 25px rgba(255, 77, 109, 0.3);
}

.difficulty-option[data-difficulty="favorites"].disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.difficulty-option[data-difficulty="favorites"].disabled:hover {
    transform: none;
    box-shadow: none;
    background: linear-gradient(135deg, rgba(255, 77, 109, 0.1) 0%, rgba(255, 77, 109, 0.2) 100%);
    border-color: rgba(255, 77, 109, 0.3);
}

.favorite-indicator {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #ff4d6d 0%, #e63946 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(255, 77, 109, 0.4);
    animation: heartbeat 2s ease-in-out infinite;
}

.question-count {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.mode-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.mode-option i {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.time-options {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.time-option {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-normal);
    font-weight: 500;
}

.time-option:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.time-option.active {
    border-color: var(--white);
    background-color: rgba(255, 255, 255, 0.2);
}

.setup-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.primary-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.btn-start-quiz {
    padding: 15px 30px;
    font-size: 1.1rem;
    background-color: var(--white);
    color: var(--primary-color);
    border: none;
}

.btn-start-quiz:hover {
    background-color: var(--off-white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-learn {
    padding: 15px 30px;
    font-size: 1.1rem;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.btn-learn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
    color: var(--white);
    text-decoration: none;
}

.btn-learn i {
    margin-right: 0.5rem;
    font-size: 1rem;
}

/* Quiz Game Section */
.quiz-game-section {
    padding: 100px 0 var(--spacing-xl);
    background-color: var(--bg-secondary);
    min-height: 100vh;
}

.quiz-progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--bg-primary);
    border-radius: 4px;
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

.question-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--border-light);
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.question-number {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.question-points {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--secondary-color);
    font-weight: 600;
}

.question-points i {
    color: var(--primary-color);
}

.question-content {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.katakana-display {
    margin-bottom: var(--spacing-lg);
}

.katakana-display span {
    font-family: var(--font-japanese);
    font-size: 6rem;
    font-weight: 500;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    display: inline-block;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    min-width: 150px;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 3px solid var(--border-light);
}

.question-text h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 0;
}

/* Answer Options */
.answer-options {
    display: grid;
    grid-template-columns: 1fr 1fr; /* 2 kolom per baris */
    grid-template-rows: auto auto;   /* 2 baris dengan tinggi otomatis */
    gap: 20px;                      /* Gap yang lebih proporsional */
    margin-bottom: var(--spacing-lg);
    max-width: 600px;               /* Lebar maksimal yang lebih besar */
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;                /* Padding untuk mobile */
}

.answer-option {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-medium);
    border-radius: var(--border-radius-md);
    padding: 20px 15px;             /* Padding yang lebih seimbang */
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;                      /* Gap yang lebih kecil antar elemen */
    min-height: 120px;              /* Tinggi minimum yang lebih besar */
    height: auto;                   /* Tinggi otomatis */
    position: relative;
    /* Hapus aspect-ratio yang membuat proporsi aneh */
}

.answer-option:hover {
    border-color: var(--secondary-color);
    background-color: var(--bg-primary);
    transform: translateY(-2px);   /* Transform yang lebih subtle */
    box-shadow: var(--box-shadow-light);
}

.answer-option.selected {
    border-color: var(--secondary-color);
    background-color: var(--secondary-light);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
}

.answer-option.correct {
    border-color: #28a745;
    background-color: #d4edda;
    color: #155724;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.answer-option.incorrect {
    border-color: #dc3545;
    background-color: #f8d7da;
    color: #721c24;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.option-letter {
    width: 32px;                    /* Ukuran yang lebih kecil */
    height: 32px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;              /* Font size yang lebih kecil */
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;                 /* Mencegah shrinking */
}

.option-text {
    font-family: var(--font-japanese);
    font-size: 1.5rem;              /* Font size yang lebih proporsional */
    font-weight: 600;
    line-height: 1;
    text-align: center;
    word-break: break-word;         /* Handle text yang panjang */
}

/* Typing Answer */
.typing-answer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

#romajiInput {
    padding: 15px 20px;
    border: 2px solid var(--border-medium);
    border-radius: var(--border-radius-md);
    font-size: 1.2rem;
    font-family: var(--font-primary);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    min-width: 200px;
    text-align: center;
    transition: var(--transition-normal);
}

#romajiInput:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Quiz Actions */
.quiz-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

/* Quiz Results Section */
.quiz-results-section {
    padding: 100px 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    min-height: 100vh;
}

.results-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.results-header {
    margin-bottom: var(--spacing-xl);
}

.results-icon {
    width: 100px;
    height: 100px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 3rem;
}

.results-header h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.results-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.stat-content p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

.results-analysis {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    text-align: left;
    backdrop-filter: blur(10px);
}

.results-analysis h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.performance-message {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.mistake-review {
    margin-top: var(--spacing-lg);
}

.mistake-review h4 {
    margin-bottom: var(--spacing-md);
    color: var(--yuzu);
}

.mistakes-list {
    display: grid;
    gap: var(--spacing-md);
}

.mistake-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.mistake-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.mistake-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn-favorite {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid transparent;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    min-width: 120px;
    justify-content: center;
}

.btn-favorite:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-favorite.favorited {
    background: rgba(255, 77, 109, 0.8);
    border-color: #ff4d6d;
    color: white;
}

.btn-favorite.favorited:hover {
    background: rgba(255, 77, 109, 0.9);
}

.favorite-actions {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    margin-top: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.favorite-status {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #ff4d6d;
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.favorites-summary {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 1rem;
    margin-top: 1rem;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.favorites-summary h5 {
    margin-bottom: 0.5rem;
    color: #ff4d6d;
}

.favorites-count {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
}

.favorites-status {
    margin-top: 0.5rem;
    padding: 0.3rem 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    backdrop-filter: blur(5px);
}

.status-text {
    font-size: 0.8rem;
    opacity: 0.9;
    font-weight: 500;
}

.favorites-status.has-favorites .status-text {
    color: #ff4d6d;
    font-weight: 600;
}

.favorites-preview {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    backdrop-filter: blur(5px);
    font-size: 0.8rem;
}

.preview-items {
    display: flex;
    gap: 0.3rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0.3rem;
}

.preview-item {
    background: rgba(255, 77, 109, 0.3);
    color: white;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: var(--font-japanese);
    font-size: 0.9rem;
    font-weight: 600;
}

.preview-more {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    opacity: 0.8;
}

.mistake-katakana {
    font-family: var(--font-japanese);
    font-size: 1.5rem;
    font-weight: 600;
}

.mistake-answer {
    font-size: 0.9rem;
}

.correct-answer {
    color: #90EE90;
}

.wrong-answer {
    color: #FFB6C1;
    text-decoration: line-through;
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Time Slider Styles */
.time-slider-container {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.time-slider-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: white;
    text-align: center;
}

.time-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.3);
    outline: none;
    opacity: 0.9;
    transition: opacity 0.2s;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.time-slider:hover {
    opacity: 1;
}

.time-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    transition: transform 0.2s ease;
}

.time-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.time-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    transition: transform 0.2s ease;
    border: none;
}

.time-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.time-slider::-moz-range-track {
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
}

.time-display {
    text-align: center;
    margin-top: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    color: #333;
    transition: all 0.3s ease;
}

.time-marks {
    display: flex;
    justify-content: space-between;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.time-marks span {
    flex: 1;
    text-align: center;
}

.quiz-feedback {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 8px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    z-index: 10000;
    animation: feedbackAnimation 0.5s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    text-align: center;
    min-width: 250px;
}

.quiz-feedback.success {
    background: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.quiz-feedback.error {
    background: #f8d7da;
    color: #721c24;
    border: 2px solid #f1b0b7;
}

.quiz-feedback.warning {
    background: #fff3cd;
    color: #856404;
    border: 2px solid #ffeaa7;
}

.quiz-feedback.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 2px solid #bee5eb;
}

/* Typing Mode Styles */
.typing-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.typing-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

#romajiInput {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-medium);
    border-radius: var(--border-radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.2rem;
    font-family: var(--font-primary);
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
    min-height: 50px;
}

#romajiInput:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
    background-color: var(--bg-primary);
}

#romajiInput::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

#romajiInput:disabled {
    background-color: var(--border-light);
    color: var(--text-secondary);
    cursor: not-allowed;
}

#submitTypingBtn {
    padding: 1rem 1.5rem;
    background-color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius-md);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    min-width: 120px;
    justify-content: center;
}

#submitTypingBtn:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

#submitTypingBtn:disabled {
    background-color: var(--border-medium);
    border-color: var(--border-medium);
    cursor: not-allowed;
    transform: none;
}

.typing-hint {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-light);
}

.typing-hint p {
    margin: 0;
}


/* Enhanced Visual Effects */
.answer-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: var(--border-radius-md);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.answer-option:hover::before {
    opacity: 1;
}

/* Animations untuk feedback yang lebih smooth */
.answer-option.selected {
    animation: selectPulse 0.3s ease;
}

.answer-option.correct {
    animation: correctPulse 0.5s ease;
}

.answer-option.incorrect {
    animation: incorrectShake 0.5s ease;
}

/* Quiz Footer Styles */
.quiz-footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f172a 100%);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 2rem;
    border-top: 3px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.quiz-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="katakana" patternUnits="userSpaceOnUse" width="100" height="100"><text x="20" y="30" font-family="serif" font-size="20" fill="rgba(255,255,255,0.03)">ア</text><text x="70" y="70" font-family="serif" font-size="15" fill="rgba(255,255,255,0.02)">カ</text><text x="10" y="80" font-family="serif" font-size="18" fill="rgba(255,255,255,0.025)">サ</text></pattern></defs><rect width="100" height="100" fill="url(%23katakana)"/></svg>') repeat;
    opacity: 0.5;
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.footer-brand h4 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    line-height: 1.4;
}

.footer-social {
    text-align: center;
    padding: 0 1rem;
}

.footer-social h5 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    backdrop-filter: blur(10px);
    min-width: 120px;
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.social-link.whatsapp {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.2), rgba(37, 211, 102, 0.1));
}

.social-link.whatsapp:hover {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.3), rgba(37, 211, 102, 0.2));
    border-color: #25d366;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
}

.social-link.instagram {
    background: linear-gradient(135deg, rgba(225, 48, 108, 0.2), rgba(255, 214, 0, 0.1));
}

.social-link.instagram:hover {
    background: linear-gradient(135deg, rgba(225, 48, 108, 0.3), rgba(255, 214, 0, 0.2));
    border-color: #e1306c;
    box-shadow: 0 10px 25px rgba(225, 48, 108, 0.3);
}

.social-link i {
    font-size: 2rem;
    color: white;
}

.social-link span {
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.social-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    line-height: 1.4;
    max-width: 400px;
    margin: 0 auto;
}

.footer-links {
    text-align: right;
}

.footer-links h6 {
    color: var(--secondary-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    padding: 0.25rem 0;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(-5px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin: 0;
}

.btn-back-to-top {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    backdrop-filter: blur(10px);
}

.btn-back-to-top:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn-back-to-top i {
    font-size: 0.9rem;
}

/* Animation untuk social links */
@keyframes socialPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.social-link:hover i {
    animation: socialPulse 1s ease-in-out infinite;
}

/* Efek hover untuk footer brand */
.footer-brand:hover h4 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

@keyframes selectPulse {
    0% { transform: scale(1) translateY(0); }
    50% { transform: scale(1.02) translateY(-2px); }
    100% { transform: scale(1) translateY(-2px); }
}

@keyframes correctPulse {
    0% { transform: scale(1) translateY(0); }
    25% { transform: scale(1.05) translateY(-3px); }
    50% { transform: scale(1.02) translateY(-2px); }
    100% { transform: scale(1) translateY(-2px); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0) translateY(-2px); }
    25% { transform: translateX(-3px) translateY(-2px); }
    75% { transform: translateX(3px) translateY(-2px); }
}

/* Feedback Animation Styles */
@keyframes feedbackAnimation {
    0% { 
        opacity: 0; 
        transform: translate(-50%, -50%) scale(0.8); 
    }
    100% { 
        opacity: 1; 
        transform: translate(-50%, -50%) scale(1); 
    }
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    
    .difficulty-options {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .difficulty-option[data-difficulty="favorites"] {
        order: -1; /* Show favorites option first on mobile */
    }
    
    .favorite-indicator {
        top: -6px;
        right: -6px;
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    .quiz-header .container {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .quiz-header-info {
        order: 2;
    }
    
    .quiz-controls {
        order: 1;
    }
    
    .katakana-display span {
        font-size: 4rem;
        min-width: 120px;
        min-height: 120px;
    }
    
    .question-text h2 {
        font-size: 1.2rem;
    }
    
    .answer-options {
        gap: 15px;
        max-width: 450px;
        padding: 0 15px;
    }
    
    .answer-option {
        min-height: 100px;
        padding: 15px 12px;
    }
    
    .option-letter {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    .option-text {
        font-size: 1.3rem;
    }
    
    .results-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .results-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .mistake-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .mistake-content {
        width: 100%;
    }
    
    .mistake-actions {
        width: 100%;
        justify-content: center;
    }
    
    .btn-favorite {
        min-width: 140px;
    }

    .setup-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .primary-actions {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }
    
    .btn-start-quiz,
    .btn-learn {
        width: 100%;
        max-width: 300px;
        text-align: center;
        justify-content: center;
    }
}

@media screen and (max-width: 576px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-links {
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .social-link {
        width: 100%;
        max-width: 200px;
    }

    .quiz-footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-social h5 {
        font-size: 1rem;
        line-height: 1.4;
    }
    
    .social-link {
        min-width: auto;
        width: 100%;
    }
    
    .social-link i {
        font-size: 1.5rem;
    }
    
    .social-link span {
        font-size: 0.8rem;
    }
    .answer-options {
        gap: 12px;
        max-width: 380px;
        padding: 0 10px;
    }
    
    .answer-option {
        min-height: 90px;
        padding: 12px 10px;
        gap: 10px;
    }
    
    .option-letter {
        width: 26px;
        height: 26px;
        font-size: 0.75rem;
    }
    
    .option-text {
        font-size: 1.2rem;
    }
    
    .results-stats {
        grid-template-columns: 1fr;
    }
    
    .typing-answer {
        flex-direction: column;
    }
    
    #romajiInput {
        min-width: auto;
        width: 100%;
    }

    .typing-input-group {
        flex-direction: column;
        gap: 1rem;
    }
    
    #submitTypingBtn {
        min-width: auto;
        width: 100%;
    }
    
    .typing-container {
        margin: 1rem 0;
        max-width: 100%;
        padding: 0 1rem;
    }

    .primary-actions {
        gap: var(--spacing-xs);
    }
    
    .btn-start-quiz,
    .btn-learn {
        padding: 12px 24px;
        font-size: 1rem;
        max-width: 280px;
    }
}