:root {
    --primary-color: #e040fb;
    --primary-dark: #aa00cc;
    --primary-light: #ff69f8;
    --secondary-color: #1a1a2e;
    --accent-color: #00d4ff;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --bg-dark: #0f0f1e;
    --bg-card: #1a1a2e;
    --border-color: #2d2d3d;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --type-creator: #ff6b6b;
    --type-analyst: #4ecdc4;
    --type-empath: #ff8fab;
    --type-speedster: #ffd93d;
    --type-intuitive: #9b59b6;
    --type-scholar: #3498db;
    --type-strategist: #f39c12;
    --type-spirit: #1abc9c;
}

/* Light mode */
[data-theme="light"] {
    --secondary-color: #ffffff;
    --bg-dark: #f5f5f5;
    --bg-card: #ffffff;
    --border-color: #e0e0e0;
    --text-primary: #1a1a2e;
    --text-secondary: #666666;
}

[data-theme="light"] .loader-spinner {
    border-color: rgba(224,64,251,0.15);
    border-top-color: var(--primary-color);
}
[data-theme="light"] .option {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.1);
    color: var(--text-primary);
}
[data-theme="light"] .option:hover {
    background: rgba(224,64,251,0.06);
    border-color: rgba(224,64,251,0.25);
}
[data-theme="light"] .option.selected {
    background: rgba(224,64,251,0.1);
    border-color: var(--primary-color);
}
[data-theme="light"] .type-badge {
    background: rgba(0,0,0,0.04);
    border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .result-description {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .strengths,
[data-theme="light"] .weaknesses {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .compatibility {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .type-item {
    background: rgba(224,64,251,0.06);
}
[data-theme="light"] .famous-examples {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .premium-analysis {
    background: linear-gradient(135deg, rgba(224,64,251,0.08), rgba(0,212,255,0.08));
    border-color: rgba(224,64,251,0.2);
}
[data-theme="light"] .premium-content {
    background: rgba(0,0,0,0.03);
}
[data-theme="light"] .share-section {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .recommended-apps {
    background: rgba(0,0,0,0.03);
}
[data-theme="light"] .app-card {
    background: rgba(255,255,255,0.8);
    border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .app-card:hover {
    background: rgba(224,64,251,0.06);
    border-color: rgba(224,64,251,0.2);
}
[data-theme="light"] .ad-container {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .lang-btn,
[data-theme="light"] .theme-toggle {
    background: rgba(0,0,0,0.05);
    border-color: rgba(0,0,0,0.1);
    color: var(--text-primary);
}
[data-theme="light"] .lang-btn:hover,
[data-theme="light"] .theme-toggle:hover {
    background: rgba(224,64,251,0.08);
}
[data-theme="light"] .lang-menu {
    background: rgba(245,245,250,0.98);
    border-color: rgba(0,0,0,0.1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
[data-theme="light"] .lang-option:hover {
    background: rgba(224,64,251,0.06);
}
[data-theme="light"] .app-loader {
    background: #f5f5f5;
}
[data-theme="light"] ::-webkit-scrollbar-track {
    background: #f0f0f0;
}
[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.15);
}

/* Dark mode (기본) */
body.light-mode {
    --secondary-color: #ffffff;
    --bg-dark: #f5f5f5;
    --bg-card: #ffffff;
    --border-color: #e0e0e0;
    --text-primary: #1a1a2e;
    --text-secondary: #666666;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

/* 터치 최적화 */
button, a, input, [role="button"], [role="link"] {
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

input[type="text"], textarea {
    -webkit-user-select: text;
    user-select: text;
}

html {
    font-size: 16px;
}

/* === App Loader === */
.app-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.app-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.loader-emoji {
    font-size: 48px;
    animation: loader-bounce 1s ease-in-out infinite;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: loader-spin 0.8s linear infinite;
}

.loader-text {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 1px;
    font-weight: 500;
}

@keyframes loader-spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes loader-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.app-container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-dark);
    position: relative;
}

/* 언어 선택기 */
.language-selector {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 1000;
}

.lang-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 2px 8px rgba(224, 64, 251, 0.3);
}

.lang-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(224, 64, 251, 0.5);
}

.lang-toggle:active {
    transform: scale(0.95);
}

.lang-menu {
    position: absolute;
    top: 50px;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    min-width: 140px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    max-height: 300px;
    overflow-y: auto;
}

.lang-menu.hidden {
    display: none;
}

.lang-option {
    padding: 12px 16px;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.lang-option:hover {
    background: var(--primary-color);
}

.lang-option.active {
    background: var(--primary-color);
    font-weight: bold;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 76px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 2px 8px rgba(224, 64, 251, 0.3);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(224, 64, 251, 0.5);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* 광고 컨테이너 */
.ad-container {
    padding: 8px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-top {
    order: 1;
}

.ad-bottom {
    order: 3;
    border-top: 1px solid var(--border-color);
    border-bottom: none;
    margin-top: auto;
}

/* 스크린 관리 */
.screen {
    display: none;
    flex: 1;
    flex-direction: column;
    padding: 20px;
    order: 2;
}

.screen.active {
    display: flex;
}

/* 인트로 화면 */
#intro-screen {
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.intro-content {
    width: 100%;
    text-align: center;
}

.brain-emoji-animation {
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

.brain-emoji {
    font-size: 80px;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

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

.intro-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.intro-description {
    margin: 24px 0;
    color: var(--text-secondary);
    line-height: 1.8;
}

.intro-description p {
    margin: 8px 0;
}

.brain-types-preview {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin: 32px 0;
}

.type-badge {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    font-size: 12px;
    color: var(--text-secondary);
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

.type-badge:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 버튼 스타일 */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    text-transform: none;
    display: inline-block;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
    max-width: 320px;
    margin: 16px 0;
    box-shadow: 0 4px 12px rgba(224, 64, 251, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 6px 16px rgba(224, 64, 251, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    width: 100%;
}

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

.btn-premium {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    width: 100%;
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(224, 64, 251, 0.4);
}

.time-estimate {
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* 뒤로가기 버튼 */
.back-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    padding: 8px 0;
    margin-bottom: 16px;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

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

/* 질문 화면 */
#quiz-screen {
    padding-bottom: 80px;
}

.quiz-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    width: 10%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 35px;
}

.quiz-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.question-container {
    width: 100%;
}

.question-text {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 28px;
    line-height: 1.4;
    animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    text-align: left;
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    font-size: 16px;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    animation: slideIn 0.4s ease-out;
}

.option::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(224, 64, 251, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.option:hover {
    border-color: var(--primary-color);
    background: rgba(224, 64, 251, 0.1);
}

.option:active::before {
    width: 300px;
    height: 300px;
    transition: width 0.6s ease-out, height 0.6s ease-out;
}

.option:nth-child(1) { animation-delay: 0.1s; }
.option:nth-child(2) { animation-delay: 0.15s; }
.option:nth-child(3) { animation-delay: 0.2s; }
.option:nth-child(4) { animation-delay: 0.25s; }

/* 분석 중 화면 */
#analyzing-screen {
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.analyzing-content {
    text-align: center;
}

.brain-scan {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 32px;
}

.brain-scan-circle {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: rotate 3s linear infinite;
}

.brain-scan-wave {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

.brain-scan-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 60px;
    animation: float 3s ease-in-out infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

#analyzing-screen h2 {
    font-size: 20px;
    margin-bottom: 12px;
}

#analyzing-screen p {
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.loading-dots {
    display: flex;
    gap: 6px;
    justify-content: center;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: bounce 1.4s infinite;
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    30% {
        transform: translateY(-10px);
    }
}

/* 결과 화면 */
#result-screen {
    padding-bottom: 20px;
}

.result-content {
    width: 100%;
}

.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    animation: confetti-fall 3s ease-out forwards;
}

@keyframes confetti-fall {
    0% {
        transform: translateY(-10px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

.result-header {
    text-align: center;
    margin-bottom: 32px;
}

.result-emoji {
    font-size: 80px;
    display: inline-block;
    margin-bottom: 16px;
    animation: bounce-in 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.result-title {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.result-tagline {
    color: var(--text-secondary);
    font-size: 14px;
}

.result-description {
    background: var(--bg-card);
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    line-height: 1.8;
}

.strengths-weaknesses {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.strengths, .weaknesses {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.strengths h3, .weaknesses h3 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.strengths ul, .weaknesses ul {
    list-style: none;
}

.strengths li, .weaknesses li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.strengths li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.weaknesses li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--warning-color);
}

.compatibility {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.compatible-types, .incompatible-types {
    margin-bottom: 20px;
}

.compatible-types:last-child, .incompatible-types:last-child {
    margin-bottom: 0;
}

.compatible-types h4, .incompatible-types h4 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.type-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.type-item {
    background: rgba(224, 64, 251, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    padding: 8px 12px;
    font-size: 13px;
    color: var(--primary-light);
}

.famous-examples {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.famous-examples h3 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.famous-examples p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.premium-analysis {
    background: linear-gradient(135deg, rgba(224, 64, 251, 0.1), rgba(0, 212, 255, 0.1));
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.premium-analysis button {
    width: 100%;
    margin-bottom: 16px;
}

.premium-content {
    background: var(--bg-dark);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
    border: 1px solid var(--border-color);
}

.premium-content.hidden {
    display: none;
}

.premium-content h3 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.premium-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.share-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.share-section h3 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 16px;
    font-weight: 600;
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.share-btn {
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

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

.share-btn.kakao:hover {
    border-color: #fae100;
    color: #fae100;
}

.share-btn.twitter:hover {
    border-color: #1da1f2;
    color: #1da1f2;
}

.share-btn.facebook:hover {
    border-color: #1877f2;
    color: #1877f2;
}

.share-btn.copy:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.recommended-apps {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.recommended-apps h3 {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 16px;
    font-weight: 600;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.app-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

.app-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.app-emoji {
    font-size: 32px;
    display: block;
    margin-bottom: 8px;
}

.app-name {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

#retry-btn {
    margin-top: 8px;
}

/* 반응형 디자인 */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .intro-title {
        font-size: 24px;
    }

    .result-title {
        font-size: 24px;
    }

    .question-text {
        font-size: 18px;
    }

    .brain-types-preview {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }

    .type-badge {
        font-size: 11px;
        padding: 8px;
    }

    .strengths-weaknesses {
        grid-template-columns: 1fr;
    }

    .share-buttons {
        grid-template-columns: 1fr 1fr;
    }

    .app-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 360px) {
    .brain-types-preview {
        grid-template-columns: repeat(2, 1fr);
    }

    .intro-title {
        font-size: 20px;
    }

    .brain-emoji {
        font-size: 60px;
    }
}

/* 접근성 */
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus:not(:focus-visible) {
    outline: none;
}

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

/* 인쇄 스타일 */
@media print {
    .language-selector,
    .ad-container,
    .back-btn,
    .share-section,
    .recommended-apps {
        display: none;
    }
}

/* === Accessibility Improvements === */
button:focus-visible,a:focus-visible,input:focus-visible,[role="button"]:focus-visible{outline:3px solid #9b59b6;outline-offset:2px;}
button,a[href],input[type="button"],input[type="submit"],[role="button"]{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;}
.skip-link{position:absolute;top:-40px;left:0;background:#9b59b6;color:white;padding:8px;text-decoration:none;z-index:100;}
.skip-link:focus{top:0;}
[role="dialog"]{z-index:1000;}
@media (prefers-reduced-motion: reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}
@media (prefers-contrast: more){button{border:2px solid #9b59b6;}}
.rec-card:focus-visible,.question-option:focus-visible{outline:3px solid #9b59b6;outline-offset:4px;}

/* Enhanced button accessibility */
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
[role="button"]:focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 2px;
}

button:active,
input[type="button"]:active,
input[type="submit"]:active,
[role="button"]:active {
    transform: scale(0.98);
}

/* High contrast mode */
@media (prefers-contrast: more) {
    button,
    input[type="button"],
    input[type="submit"],
    [role="button"] {
        border: 2px solid currentColor;
        font-weight: bold;
    }
}

/* Enhanced form accessibility */
label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    font-size: 16px;
    min-height: 44px;
    padding: 10px 12px;
}

input[type="text"]:focus-visible,
input[type="email"]:focus-visible,
input[type="password"]:focus-visible,
input[type="number"]:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 1px;
}

/* Error handling accessibility */
.error-message,
[aria-invalid="true"] {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

[aria-invalid="true"] {
    border-color: #dc2626;
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Keep essential transitions for state changes */
    button:active,
    [role="button"]:active {
        transform: none;
    }
}

/* Non-color focus indicators */
:focus-visible {
    outline-width: 3px;
}

/* Icon patterns for colorblind users */
.error::before {
    content: "x ";
}

.success::before {
    content: "✓ ";
}

.warning::before {
    content: "! ";
}

.info::before {
    content: "i ";
}

/* High contrast scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark, #f1f5f9);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color, #3b82f6);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark, #1e40af);
}

/* Firefox scrollbar */
* {
    scrollbar-color: var(--primary-color, #3b82f6) var(--bg-dark, #f1f5f9);
    scrollbar-width: thin;
}

/* Selection Color */
::selection {
    background: #e040fb;
    color: white;
}

::-moz-selection {
    background: #e040fb;
    color: white;
}

/* Glassmorphism Enhancement */
.header, .modal, .overlay, [role="dialog"], .menu {
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
}

/* Card/Panel Glassmorphism */
.card, .panel, .sidebar, [class*="card"] {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}