/* 기본 리셋 및 변수 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 메지로 대학 스타일 파스텔 색상 팔레트 */
    --primary-color: #89C3EB; /* 연한 파랑 */
    --secondary-color: #F4C6D0; /* 연한 분홍 */
    --accent-color: #A8D8B5; /* 연한 초록 */
    --warm-accent: #F0E5D8; /* 연한 베이지 */
    --background: #FAFBFC; /* 부드러운 회백색 배경 */
    --surface: #FFFFFF;
    --surface-soft: #FFF9F5; /* 크림색 표면 */
    --text-primary: #4A5568;
    --text-secondary: #718096;
    --text-tertiary: #A0AEC0;
    --border-color: #E8ECF1;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    
    /* 추가 파스텔 색상 */
    --pastel-yellow: #FFF3CD;
    --pastel-purple: #E8D8F5;
    --pastel-orange: #FFE4D6;
    --pastel-mint: #D4F1E8;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background);
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(137, 195, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(244, 198, 208, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(168, 216, 181, 0.1) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 헤더 스타일 */
.site-header {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(232, 236, 241, 0.5);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    cursor: pointer;
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    animation: wiggle 2s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

/* 네비게이션 */
.main-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.6rem 1rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background: var(--background);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(137, 195, 235, 0.3);
}

.nav-item.active .nav-icon {
    filter: brightness(0) invert(1);
}

.nav-icon {
    width: 1.2rem;
    height: 1.2rem;
}

/* 히어로 배너 */
.hero-banner {
    margin: 2rem auto;
    max-width: 1200px;
    padding: 0 1.5rem;
}

.banner-content {
    background: linear-gradient(135deg, #89C3EB 0%, #A8D8B5 50%, #F4C6D0 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    position: relative;
    overflow: hidden;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 8px 24px rgba(137, 195, 235, 0.25);
}

.banner-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.text-gradient {
    background: linear-gradient(45deg, #4A5568, #2D3748);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.banner-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.banner-illustration {
    position: relative;
    width: 200px;
    height: 200px;
}

.floating-emoji {
    position: absolute;
    font-size: 3rem;
    animation: float 3s ease-in-out infinite;
    animation-delay: var(--delay);
}

/* 아이콘 공통 스타일 */
img[src*="assets/icons/"] {
    display: inline-block;
    vertical-align: middle;
}

.floating-emoji:nth-child(1) { top: 0; left: 0; }
.floating-emoji:nth-child(2) { top: 0; right: 0; }
.floating-emoji:nth-child(3) { bottom: 0; left: 0; }
.floating-emoji:nth-child(4) { bottom: 0; right: 0; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* 섹션 스타일 */
.popular-tests, .all-tests {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.see-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.arrow-icon {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s;
}

.see-all:hover {
    opacity: 0.8;
}

.see-all:hover .arrow-icon {
    transform: translateX(3px);
}

/* 테스트 슬라이더 */
.test-slider {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.test-slider::-webkit-scrollbar {
    display: none;
}

.slider-container {
    display: flex;
    gap: 1rem;
    padding-bottom: 1rem;
}

.slider-card {
    flex: 0 0 280px;
    background: linear-gradient(135deg, var(--surface-soft) 0%, var(--surface) 100%);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid rgba(232, 236, 241, 0.3);
}

.slider-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.slider-rank {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--pastel-orange) 100%);
    color: #C05621;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(244, 198, 208, 0.4);
}

.slider-thumbnail {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
}

.slider-icon {
    width: 5rem;
    height: 5rem;
}

.slider-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.slider-participants {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 테스트 그리드 */
.sort-options {
    display: flex;
    gap: 0.5rem;
}

.sort-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.sort-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* 테스트 카드 */
.test-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid rgba(232, 236, 241, 0.5);
}

.test-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(137, 195, 235, 0.15);
    border-color: var(--primary-color);
}

.test-card:hover .test-thumbnail {
    background: linear-gradient(135deg, var(--pastel-mint) 0%, var(--pastel-purple) 100%);
}

.test-thumbnail {
    height: 180px;
    background: linear-gradient(135deg, var(--pastel-yellow) 0%, var(--pastel-mint) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
}

.test-icon {
    width: 8rem;
    height: 8rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.test-badges {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge.new {
    background: var(--pastel-mint);
    color: #2F855A;
    border: 1px solid rgba(47, 133, 90, 0.2);
}

.badge.hot {
    background: var(--pastel-orange);
    color: #C05621;
    border: 1px solid rgba(192, 86, 33, 0.2);
}

.test-info {
    padding: 1.5rem;
}

.test-category {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-bottom: 0.5rem;
}

.category-icon {
    width: 1rem;
    height: 1rem;
    display: inline-block;
    vertical-align: middle;
}

.category-name {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-weight: 600;
}

.test-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.test-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.test-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.meta-icon {
    width: 1rem;
    height: 1rem;
}

/* 광고 섹션 */
.ad-section {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.ad-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 푸터 */
.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
}

/* 소개 섹션 */
.intro-section {
    padding: 4rem 1.5rem;
    background: linear-gradient(135deg, var(--surface-soft) 0%, var(--surface) 100%);
}

.intro-section .container,
.guide-section .container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-main-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-main-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.intro-content {
    margin-bottom: 3rem;
}

.intro-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: bounce 2s infinite;
}

.feature-card:nth-child(1) .feature-icon { animation-delay: 0s; }
.feature-card:nth-child(2) .feature-icon { animation-delay: 0.2s; }
.feature-card:nth-child(3) .feature-icon { animation-delay: 0.4s; }

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.feature-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* 가이드 섹션 */
.guide-section {
    padding: 4rem 1.5rem;
    background-color: var(--background);
}

.guide-content {
    max-width: 1000px;
    margin: 0 auto;
}

.guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.guide-step {
    text-align: center;
    position: relative;
    padding: 1.5rem;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-md);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.step-desc {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.guide-tips {
    background: var(--surface-soft);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 2px dashed var(--primary-color);
}

.tips-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tips-list {
    list-style: none;
    padding: 0;
}

.tips-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tips-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 1.5rem;
    height: 1.5rem;
    background: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: bold;
    font-size: 0.875rem;
}

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

.guide-more {
    text-align: center;
    margin-top: 2rem;
}

.more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.more-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.more-link .arrow-icon {
    width: 20px;
    height: 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
}

.footer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-note {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* 인증 섹션 스타일 */
.auth-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.auth-buttons {
    display: flex;
    gap: 0.75rem;
}

.auth-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-btn {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

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

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

.signup-btn:hover {
    background: #6fb1e0;
    transform: translateY(-1px);
}

.auth-icon {
    width: 18px;
    height: 18px;
}

/* 사용자 메뉴 */
.user-menu {
    position: relative;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-info:hover {
    border-color: var(--primary-color);
}

.user-avatar {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.user-email {
    font-size: 0.9rem;
    color: var(--text-color);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-arrow {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    display: none;
    z-index: 1000;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background: var(--background-color);
    color: var(--primary-color);
}

.dropdown-item img {
    width: 18px;
    height: 18px;
}

.dropdown-divider {
    margin: 0.5rem 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

.logout-item {
    color: #dc3545;
}

.logout-item:hover {
    background: #fee;
    color: #dc3545;
}

/* 인증 모달 */
.auth-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--background-color);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--border-color);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.auth-title {
    font-size: 1.75rem;
    color: var(--text-color);
    margin: 0;
}

.auth-subtitle {
    color: var(--text-secondary);
    margin: -1rem 0 0 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 500;
}

.form-group input {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(137, 195, 235, 0.1);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.auth-submit-btn {
    padding: 0.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.auth-submit-btn:hover {
    background: #6fb1e0;
    transform: translateY(-1px);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0.5rem 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.auth-divider span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.social-auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.social-auth-btn:hover {
    background: var(--background-color);
    border-color: var(--primary-color);
}

.social-auth-btn img {
    width: 20px;
    height: 20px;
}

.auth-switch {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.auth-switch button {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    text-decoration: underline;
}

.auth-switch button:hover {
    color: #6fb1e0;
}

.auth-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
}

.auth-loading .loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.auth-loading p {
    color: var(--text-secondary);
}

/* 알림 스타일 */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 3000;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid #28a745;
    color: #28a745;
}

.notification-error {
    border-left: 4px solid #dc3545;
    color: #dc3545;
}

.notification-info {
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* 대시보드 스타일 */
.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.dashboard-header {
    text-align: center;
    margin-bottom: 3rem;
}

.dashboard-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.dashboard-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.dashboard-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
    gap: 1rem;
}

.dashboard-loading .loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.dashboard-loading p {
    color: var(--text-secondary);
}

.login-required {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
}

.login-message {
    text-align: center;
    max-width: 400px;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.login-icon {
    width: 4rem;
    height: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.login-message h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.login-message p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.login-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-btn:hover {
    background: #6fb1e0;
    transform: translateY(-1px);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon img {
    width: 1.5rem;
    height: 1.5rem;
    filter: brightness(0) invert(1);
}

.stat-info {
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

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

.section-subtitle {
    color: var(--text-secondary);
    margin: 0;
}

.view-all-btn {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.view-all-btn:hover {
    color: #6fb1e0;
}

.recent-tests-section {
    margin-bottom: 3rem;
}

.recent-tests-grid {
    display: grid;
    gap: 1rem;
}

.recent-test-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.recent-test-card .test-thumbnail {
    width: 3rem;
    height: 3rem;
    flex-shrink: 0;
}

.recent-test-card .test-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.recent-test-card .test-info {
    flex: 1;
}

.recent-test-card .test-title {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
}

.recent-test-card .test-result {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0 0 0.25rem 0;
}

.recent-test-card .test-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.test-actions {
    display: flex;
    gap: 0.5rem;
}

.view-result-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-result-btn:hover {
    background: #6fb1e0;
}

.recommended-tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.recommended-test-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.recommended-test-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.recommended-test-card .test-thumbnail {
    position: relative;
    padding: 1.5rem;
    text-align: center;
    background: var(--background-color);
}

.recommended-test-card .test-thumbnail img {
    width: 3rem;
    height: 3rem;
}

.recommended-test-card .badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
}

.recommended-test-card .badge.new {
    background: var(--secondary-color);
}

.recommended-test-card .badge.hot {
    background: var(--warm-accent);
}

.recommended-test-card .test-info {
    padding: 1.5rem;
}

.recommended-test-card .test-category {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.recommended-test-card .test-category img {
    width: 1rem;
    height: 1rem;
}

.recommended-test-card .test-category span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.recommended-test-card .test-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.recommended-test-card .test-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 1rem 0;
}

.recommended-test-card .test-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.recommended-test-card .duration {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.no-tests {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.no-tests-icon {
    width: 4rem;
    height: 4rem;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.no-tests p {
    margin-bottom: 1.5rem;
}

.start-test-btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
}

.start-test-btn:hover {
    background: #6fb1e0;
    transform: translateY(-1px);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    
    .main-nav::-webkit-scrollbar {
        display: none;
    }
    
    .nav-item {
        flex-shrink: 0;
    }
    
    .banner-content {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }
    
    .banner-title {
        font-size: 2rem;
    }
    
    .banner-illustration {
        width: 150px;
        height: 150px;
        margin-top: 2rem;
    }
    
    .floating-emoji {
        font-size: 2rem;
    }
    
    .test-grid {
        grid-template-columns: 1fr;
    }
    
    .slider-card {
        flex: 0 0 240px;
    }
    
    .footer-info {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .site-logo {
        font-size: 1.2rem;
    }
    
    .nav-item {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
    }
    
    .banner-title {
        font-size: 1.5rem;
    }
    
    .banner-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
    
    .test-thumbnail {
        height: 140px;
    }
    
    .test-icon {
        width: 6rem;
        height: 6rem;
    }
    
    .test-title {
        font-size: 1.1rem;
    }
}

/* 로딩 애니메이션 */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* 스크롤바 스타일링 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}