/* 패턴 인식 스타일 */
:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --success-color: #34a853;
    --error-color: #ea4335;
    --light-color: #f8f9fa;
    --dark-color: #202124;
    --text-color: #3c4043;
    --border-radius: 12px;
    --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    
    /* 패턴별 색상 */
    --circle-color: #4285f4;
    --square-color: #ea4335;
    --triangle-color: #fbbc05;
    --star-color: #34a853;
    --heart-color: #ff6d92;
    --moon-color: #8c60d8;
}

.page-title {
    font-size: 2.8rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-color);
    text-align: center;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.exercise-container {
    background-color: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

/* 도움말 가이드 */
.exercise-guide {
    background-color: #e8f0fe;
    border-left: 5px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
}

.guide-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-right: 1.5rem;
}

.guide-text {
    font-size: 1.3rem;
    line-height: 1.7;
    color: var(--text-color);
}

.guide-text strong {
    color: var(--primary-color);
    font-size: 1.4rem;
}

.exercise-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    border: 1px solid #e0e0e0;
}

.level-selector label {
    margin-right: 0.8rem;
    color: var(--text-color);
    font-weight: 700;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.level-selector select {
    padding: 0.8rem 1.2rem;
    border-radius: var(--border-radius);
    border: 2px solid #ddd;
    background-color: white;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    min-width: 200px;
}

.level-selector select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.3);
}

.timer {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem 1.5rem;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.score-display {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: bold;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.section-title {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.7rem;
    background-color: #f0f7ff;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    border-bottom: 3px solid var(--primary-color);
}

.pattern-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
}

.pattern-display {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 180px;
    width: 100%;
    margin-bottom: 2rem;
    padding: 2rem;
    border: 3px solid #ddd;
    border-radius: var(--border-radius);
    background-color: #f9f9fa;
    flex-wrap: wrap;
    gap: 1.5rem;
    position: relative;
}

/* 패턴 구분선 */
.pattern-display::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 3px;
    background: repeating-linear-gradient(
        to right,
        #ddd,
        #ddd 10px,
        transparent 10px,
        transparent 20px
    );
    width: 80%;
    margin: 0 auto;
    opacity: 0.3;
    display: none; /* 기본적으로 숨겨두고 JS에서 필요시 표시 */
}

.pattern-item {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 120px;
    height: 120px;
    margin: 0 10px;
    border-radius: 15px;
    background-color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 3px solid #e0e0e0;
    transition: all 0.3s ease;
    position: relative;
}

.pattern-item i {
    font-size: 4rem;
}

/* 패턴별 색상 */
.pattern-item.circle i {
    color: var(--circle-color);
}

.pattern-item.square i {
    color: var(--square-color);
}

.pattern-item.triangle i {
    color: var(--triangle-color);
}

.pattern-item.star i {
    color: var(--star-color);
}

.pattern-item.heart i {
    color: var(--heart-color);
}

.pattern-item.moon i {
    color: var(--moon-color);
}

/* 패턴 아이템 순서 표시 */
.pattern-item::before {
    content: attr(data-order);
    position: absolute;
    top: -10px;
    left: -10px;
    background-color: var(--primary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 1.1rem;
    border: 2px solid white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.pattern-item.empty {
    border: 4px dashed #ccc;
    background-color: #f5f5f5;
    box-shadow: none;
    position: relative;
}

.pattern-item.empty::after {
    content: '?';
    font-size: 5rem;
    color: #aaa;
    font-weight: bold;
}

.answer-section {
    text-align: center;
    margin-bottom: 2.5rem;
    width: 100%;
}

.answer-options {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 1.5rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
}

.answer-option {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100px;
    height: 100px;
    border-radius: var(--border-radius);
    border: 4px solid #ddd;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    position: relative;
}

.answer-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.answer-option.selected {
    border-color: var(--primary-color);
    background-color: #e8f0fe;
    box-shadow: 0 0 0 5px rgba(66, 133, 244, 0.3);
    transform: translateY(-5px) scale(1.05);
}

.answer-option i {
    font-size: 3.5rem;
}

/* 답변 옵션 색상 */
.answer-option[data-shape="circle"] i {
    color: var(--circle-color);
}

.answer-option[data-shape="square"] i {
    color: var(--square-color);
}

.answer-option[data-shape="triangle"] i {
    color: var(--triangle-color);
}

.answer-option[data-shape="star"] i {
    color: var(--star-color);
}

.answer-option[data-shape="heart"] i {
    color: var(--heart-color);
}

.answer-option[data-shape="moon"] i {
    color: var(--moon-color);
}

/* 답변 옵션 레이블 */
.answer-option::after {
    content: attr(data-shape);
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--text-color);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.control-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    padding: 1.2rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 1.3rem;
    transition: all 0.3s ease;
    min-width: 160px;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover:not(:disabled) {
    background-color: #3367d6;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: #f1f3f4;
    color: var(--text-color);
    border: 2px solid #dadce0;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #e8eaed;
    transform: translateY(-3px);
}

.btn-primary:disabled, .btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.exercise-instructions {
    background-color: #f0f7ff;
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    border-left: 5px solid var(--primary-color);
}

.exercise-instructions h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.exercise-instructions ol {
    padding-left: 2rem;
    margin-bottom: 1.5rem;
}

.exercise-instructions li {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    line-height: 1.6;
}

.help-example {
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 1.5rem;
    border: 2px dashed var(--primary-color);
}

.help-example p {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.help-example p strong {
    color: var(--primary-color);
}

.help-example-pattern {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.example-item {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    background-color: white;
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: relative;
}

.example-item::after {
    content: attr(data-order);
    position: absolute;
    top: -10px;
    left: -10px;
    background-color: var(--primary-color);
    color: white;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.example-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.example-item.empty {
    border: 3px dashed #ccc;
    box-shadow: none;
}

.example-item.empty i {
    color: #aaa;
}

.example-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0 5px;
}

/* 모달 스타일 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    overflow: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-content {
    position: relative;
    background-color: white;
    margin: 15% auto;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    max-width: 500px;
    text-align: center;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
    transform: translateY(-50px);
    transition: transform 0.3s ease;
}

.modal.show {
    opacity: 1;
    display: block;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    cursor: pointer;
    color: #aaa;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--primary-color);
}

#modalTitle {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

#modalMessage {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

#modalScore {
    font-size: 3rem;
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 2rem;
}

/* 패턴 설명 도움말 */
.pattern-helper {
    background-color: #e8f0fe;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 2rem 0;
    border-left: 5px solid var(--primary-color);
    font-size: 1.2rem;
    line-height: 1.6;
    display: none; /* 기본적으로 숨겨두고 JS에서 필요시 표시 */
}

.pattern-helper strong {
    color: var(--primary-color);
}

.pattern-helper-examples {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.pattern-helper-item {
    background-color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid #ddd;
    text-align: center;
    min-width: 120px;
}

.pattern-helper-item i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: block;
}

.pattern-helper-item .item-name {
    font-weight: bold;
    margin-bottom: 0.3rem;
}

.pattern-helper-item.circle i { color: var(--circle-color); }
.pattern-helper-item.square i { color: var(--square-color); }
.pattern-helper-item.triangle i { color: var(--triangle-color); }
.pattern-helper-item.star i { color: var(--star-color); }
.pattern-helper-item.heart i { color: var(--heart-color); }
.pattern-helper-item.moon i { color: var(--moon-color); }

/* 툴팁 스타일 */
.tooltip {
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(32, 33, 36, 0.9);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    font-size: 1.3rem;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: none;
}

/* 애니메이션 효과 */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 0.5s ease-in-out;
}

/* 패턴 도형 설명 팝업 */
.shape-popup {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    max-width: 300px;
    z-index: 100;
    border-top: 5px solid var(--primary-color);
    display: none;
}

.shape-popup-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.shape-popup-content {
    font-size: 1.1rem;
    line-height: 1.6;
}

.shape-popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    color: #aaa;
}

.shape-popup-close:hover {
    color: var(--primary-color);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.2rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .exercise-container {
        padding: 1.5rem;
    }
    
    .exercise-info {
        flex-direction: column;
        gap: 1.5rem;
        align-items: stretch;
    }
    
    .timer, .score-display {
        justify-content: center;
    }
    
    .pattern-item {
        width: 100px;
        height: 100px;
    }
    
    .pattern-item i {
        font-size: 3.5rem;
    }
    
    .answer-option {
        width: 80px;
        height: 80px;
    }
    
    .answer-option i {
        font-size: 2.8rem;
    }
    
    .btn-primary, .btn-secondary {
        min-width: 140px;
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
}

/* 고대비 모드 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0047b3;
        --text-color: #000000;
        --circle-color: #003399;
        --square-color: #990000;
        --triangle-color: #996600;
        --star-color: #006600;
        --heart-color: #990033;
        --moon-color: #660099;
    }
    
    .pattern-item, .answer-option {
        border-width: 5px;
    }
    
    .answer-option::after,
    .pattern-item::before {
        background-color: black;
    }
}

/* 움직임 감소 설정 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* 패턴 설명 스타일 */
.pattern-explanation {
    text-align: center;
    background-color: #f0f7ff;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    border-left: 3px solid var(--primary-color);
}

.pattern-explanation p {
    font-size: 1.2rem;
    margin: 0;
    color: var(--text-color);
}

.pattern-explanation i {
    color: var(--primary-color);
    margin-right: 5px;
}

/* 패턴 가이드 모달 스타일 */
.pattern-guide-content {
    text-align: left;
    font-size: 1.2rem;
    line-height: 1.6;
}

.pattern-guide-example {
    background-color: #f0f7ff;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    border: 2px dashed var(--primary-color);
}

.guide-shapes {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 1.5rem;
}

.guide-shape {
    width: 50px;
    height: 50px;
    background-color: white;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    border: 2px solid #ddd;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.guide-shape i {
    font-size: 1.8rem;
}

.guide-shape span {
    position: absolute;
    top: -10px;
    left: -10px;
    background-color: var(--primary-color);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.8rem;
    font-weight: bold;
}

.guide-arrow {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: bold;
}

.guide-answer {
    background-color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--primary-color);
}

.guide-answer p {
    margin: 0.5rem 0;
    font-size: 1.2rem;
}

.guide-answer i {
    font-size: 1.5rem;
    vertical-align: middle;
    margin: 0 5px;
}

/* 모바일 대응 스타일 */
@media (max-width: 768px) {
    .guide-shapes {
        gap: 5px;
    }
    
    .guide-shape {
        width: 40px;
        height: 40px;
    }
    
    .guide-shape i {
        font-size: 1.5rem;
    }
    
    .pattern-guide-example {
        padding: 1rem;
    }
}

/* 사운드 경고 스타일 */
.sound-warning {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    z-index: 2000;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    width: 400px;
    transition: opacity 1s ease;
    opacity: 1;
}

.sound-warning-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.sound-warning-content i {
    font-size: 2rem;
    color: var(--error-color);
    margin-bottom: 5px;
}

.sound-warning-content p {
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.4;
}

.sound-warning .close-warning {
    background-color: white;
    color: var(--dark-color);
    border: none;
    border-radius: 4px;
    padding: 8px 15px;
    margin-top: 10px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

.sound-warning .close-warning:hover {
    background-color: #e0e0e0;
}