/**
 * 레몬라인 메인 페이지 스타일
 * 디자인 컨셉: 교육청 페이지 스타일 기반 (Editorial Luxury)
 * @since 2026-02-21
 */

/* ============================================
   Design System Variables
   ============================================ */
:root {
    /* Color Palette */
    --ink-deep: #0a1628;
    --ink-medium: #152238;
    --ink-soft: #1e3a5f;
    --azure-pure: #0066cc;
    --azure-bright: #2d8cf0;
    --azure-glow: #5ba3f5;
    --sky-light: #7dd3fc;
    --pearl: #f8fafc;
    --silver: #94a3b8;
    --gold-warm: #f59e0b;
    --emerald: #10b981;
    --crimson: #DC2626;

    /* Typography */
    --font-display: 'Cormorant Garamond', 'Noto Sans KR', serif;
    --font-body: 'DM Sans', 'Noto Sans KR', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;

    /* Border Radius */
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
}

/* ============================================
   Animations
   ============================================ */
@keyframes heroReveal {
    0% {
        opacity: 0;
        transform: translateY(60px) scale(0.98);
        filter: blur(8px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

@keyframes cardRise {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes subtleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.anim-hero {
    animation: heroReveal 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    opacity: 0;
}

.anim-card {
    animation: cardRise 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ============================================
   공통 스타일
   ============================================ */
.lemon-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    color: var(--ink-deep);
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--silver);
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.7;
}

/* 버튼 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-xs);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, var(--azure-pure) 0%, var(--azure-bright) 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--azure-bright) 0%, var(--azure-glow) 100%);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.btn-outline-dark {
    background: transparent;
    color: var(--ink-deep);
    border: 2px solid #E5E7EB;
}

.btn-outline-dark:hover {
    background: var(--ink-deep);
    color: #fff;
    border-color: var(--ink-deep);
}

.btn-cta {
    background: linear-gradient(135deg, var(--crimson) 0%, #991B1B 100%);
    color: #fff;
    font-size: 1.125rem;
    padding: 16px 32px;
    box-shadow: 0 4px 14px rgba(220, 38, 38, 0.3);
}

.btn-cta:hover {
    background: linear-gradient(135deg, #991B1B 0%, #7F1D1D 100%);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.125rem;
}

/* ============================================
   섹션 1: 히어로 배너 (Editorial Masthead)
   Deep Forest Green + Lemon Accent
   ============================================ */
.lemon-hero {
    position: relative;
    background: linear-gradient(145deg, #1a2e1a 0%, #2d4a2d 40%, #3d5c3d 100%);
    color: #fff;
    margin-top: -114px;
    overflow: hidden;
}

.lemon-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 100% 80% at 10% 20%, rgba(251, 191, 36, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 80% 60% at 90% 30%, rgba(45, 74, 45, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 50% 90%, rgba(163, 210, 163, 0.06) 0%, transparent 50%);
    animation: subtleFloat 12s ease-in-out infinite;
}

.lemon-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}

.hero-fade {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 140px;
    background: linear-gradient(to top, var(--pearl) 0%, transparent 100%);
    pointer-events: none;
    z-index: 5;
}

.hero-inner {
    position: relative;
    z-index: 10;
    max-width: 1300px;
    margin: 0 auto;
    padding: 274px 2.5rem 7rem;
}

.hero-accent-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #fbbf24, #fde68a);
    margin-bottom: var(--space-md);
    border-radius: 2px;
}

.hero-title-group {
    margin-bottom: var(--space-md);
}

.hero-title-main {
    font-family: var(--font-display);
    font-size: clamp(2.75rem, 6vw, 4.5rem);
    font-weight: 600;
    color: #fff;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.01em;
}

.hero-description {
    max-width: 700px;
    font-size: 1.125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.hero-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-bottom: var(--space-lg);
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(251, 191, 36, 0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(251, 191, 36, 0.25);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
}

.meta-badge:hover {
    background: rgba(251, 191, 36, 0.15);
    border-color: rgba(251, 191, 36, 0.4);
}

.meta-badge i {
    color: #fbbf24;
    font-size: 0.8rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* 히어로 내 버튼: 레몬 악센트 */
.lemon-hero .btn-primary {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #1a2e1a;
    box-shadow: 0 4px 14px rgba(251, 191, 36, 0.3);
}

.lemon-hero .btn-primary:hover {
    background: linear-gradient(135deg, #fde68a 0%, #fbbf24 100%);
    box-shadow: 0 6px 20px rgba(251, 191, 36, 0.4);
    transform: translateY(-2px);
}

/* ============================================
   섹션 2: 서비스 카드
   ============================================ */
.lemon-services {
    padding: 5rem 2rem;
    background: var(--pearl);
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.service-card.card-on::before {
    background: linear-gradient(90deg, var(--crimson) 0%, var(--azure-pure) 100%);
}

.service-card.card-bc::before {
    background: linear-gradient(90deg, var(--azure-pure) 0%, var(--emerald) 100%);
}

.service-card.card-esl::before {
    background: linear-gradient(90deg, #7C3AED 0%, var(--azure-pure) 100%);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.featured-card {
    border: 2px solid var(--azure-pure);
}

.featured-label {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--gold-warm), #fb923c);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 0.8rem;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.on-badge {
    background: linear-gradient(135deg, #FEE2E2 0%, #DBEAFE 100%);
    color: var(--crimson);
}

.bc-badge {
    background: linear-gradient(135deg, #DBEAFE 0%, #D1FAE5 100%);
    color: var(--emerald);
}

.esl-badge {
    background: linear-gradient(135deg, #EDE9FE 0%, #DBEAFE 100%);
    color: #7C3AED;
}

.card-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
}

.card-on .card-icon {
    background: linear-gradient(135deg, #FEE2E2 0%, #DBEAFE 100%);
    color: var(--crimson);
}

.card-bc .card-icon {
    background: linear-gradient(135deg, #DBEAFE 0%, #D1FAE5 100%);
    color: var(--emerald);
}

.card-esl .card-icon {
    background: linear-gradient(135deg, #EDE9FE 0%, #DBEAFE 100%);
    color: #7C3AED;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 0.5rem;
    text-align: center;
}

.card-subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: var(--silver);
    margin-bottom: 1.5rem;
    text-align: center;
}

.card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.card-features li {
    padding: 0.75rem 0;
    color: #4B5563;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-features li i {
    color: var(--emerald);
    font-size: 1rem;
    flex-shrink: 0;
}

.card-features li i.fa-star {
    color: var(--gold-warm);
}

.card-features li strong {
    color: var(--ink-deep);
    font-weight: 600;
}

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

.card-btn {
    flex: 1;
    min-width: 120px;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-xs);
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.card-btn.btn-outline {
    background: transparent;
    border: 2px solid #E5E7EB;
    color: #4B5563;
}

.card-btn.btn-outline:hover {
    border-color: var(--azure-pure);
    color: var(--azure-pure);
    background: #EFF6FF;
}

.card-btn.btn-solid {
    background: var(--azure-pure);
    color: #fff;
    border: 2px solid var(--azure-pure);
}

.card-btn.btn-solid:hover {
    background: var(--azure-bright);
    border-color: var(--azure-bright);
    transform: translateY(-2px);
}

/* ============================================
   섹션 3: 2+1 Pathway 프로그램
   ============================================ */
.lemon-pathway {
    padding: 5rem 2rem;
    background: #fff;
}

.pathway-content {
    max-width: 1200px;
    margin: 0 auto 3rem;
}

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

.timeline-step {
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    text-align: center;
    transition: all 0.3s ease;
}

.timeline-step:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.timeline-step.highlight-step {
    background: linear-gradient(135deg, #EFF6FF 0%, #D1FAE5 100%);
    border: 2px solid var(--azure-pure);
}

.step-number {
    display: inline-block;
    background: var(--azure-pure);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #DBEAFE 0%, #D1FAE5 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2.5rem;
    color: var(--azure-pure);
}

.timeline-step h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 0.75rem;
}

.timeline-step p {
    color: var(--silver);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.timeline-step ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.timeline-step li {
    padding: 0.5rem 0;
    color: #4B5563;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.5rem;
}

.timeline-step li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--azure-pure);
    font-weight: bold;
}

.timeline-step li strong {
    color: var(--ink-deep);
    font-weight: 700;
}

.timeline-arrow {
    display: none;
    font-size: 2rem;
    color: var(--azure-pure);
    text-align: center;
}

@media (min-width: 900px) {
    .pathway-timeline {
        grid-template-columns: 1fr auto 1fr auto 1fr;
    }

    .timeline-arrow {
        display: block;
    }
}

.pathway-benefits {
    margin-top: 3rem;
}

.pathway-benefits h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink-deep);
    text-align: center;
    margin-bottom: 2rem;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--pearl);
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: #fff;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.benefit-item i {
    font-size: 3rem;
    color: var(--azure-pure);
    margin-bottom: 1rem;
}

.benefit-item h5 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 0.5rem;
}

.benefit-item p {
    color: var(--silver);
    font-size: 0.95rem;
    line-height: 1.6;
}

.pathway-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ============================================
   섹션 4: 비교표
   ============================================ */
.lemon-compare {
    padding: 5rem 2rem;
    background: var(--pearl);
}

.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 2.5rem;
}

.compare-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border-top: 4px solid;
    transition: all 0.3s ease;
}

.compare-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.compare-card.compare-on {
    border-top-color: var(--crimson);
}

.compare-card.compare-bc {
    border-top-color: var(--emerald);
}

.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #E5E7EB;
}

.compare-header h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ink-deep);
}

.compare-logo {
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xs);
    background: #F3F4F6;
    color: #4B5563;
}

.compare-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.compare-list li {
    padding: 0.875rem 0;
    color: #4B5563;
    font-size: 0.95rem;
    line-height: 1.6;
    border-bottom: 1px solid #F3F4F6;
}

.compare-list li:last-child {
    border-bottom: none;
}

.compare-list strong {
    color: var(--ink-deep);
    font-weight: 600;
    display: inline-block;
    min-width: 100px;
}

.compare-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: var(--azure-pure);
    color: #fff;
    border-radius: var(--radius-xs);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.compare-btn:hover {
    background: var(--azure-bright);
    transform: translateX(4px);
}

.compare-footer {
    text-align: center;
}

/* ============================================
   섹션 5: ESL 레벨테스트
   ============================================ */
.lemon-esl {
    padding: 5rem 2rem;
    background: #fff;
}

.esl-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    align-items: start;
}

.esl-features {
    margin-top: 2rem;
}

.esl-feature-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--pearl);
    border-radius: var(--radius-xs);
    transition: all 0.3s ease;
}

.esl-feature-item:hover {
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transform: translateX(8px);
}

.esl-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #EDE9FE 0%, #DBEAFE 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #7C3AED;
    flex-shrink: 0;
}

.esl-feature-item h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 0.5rem;
}

.esl-feature-item p {
    color: var(--silver);
    font-size: 0.95rem;
    line-height: 1.6;
}

.esl-test-info {
    background: linear-gradient(135deg, #EDE9FE 0%, #DBEAFE 100%);
    padding: 2.5rem;
    border-radius: var(--radius);
}

.esl-test-info h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 1.5rem;
    text-align: center;
}

.test-sections {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.test-section {
    background: #fff;
    padding: 1.5rem;
    border-radius: var(--radius-xs);
    text-align: center;
    transition: all 0.3s ease;
}

.test-section:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.test-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #7C3AED 0%, var(--azure-pure) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
    color: #fff;
    font-size: 1.5rem;
}

.test-section h5 {
    font-weight: 700;
    color: var(--ink-deep);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.test-section p {
    color: var(--silver);
    font-size: 0.875rem;
}

.esl-test-info .btn {
    width: 100%;
    justify-content: center;
}

/* ============================================
   섹션 6: FAQ
   ============================================ */
.lemon-faq {
    padding: 5rem 2rem;
    background: var(--pearl);
}

.faq-accordion {
    max-width: 900px;
    margin: 0 auto 2.5rem;
}

.faq-item {
    background: #fff;
    border-radius: var(--radius-xs);
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink-deep);
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: var(--azure-pure);
}

.faq-question i {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--silver);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--azure-pure);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: #4B5563;
    line-height: 1.8;
    font-size: 1rem;
}

.faq-footer {
    text-align: center;
}

/* ============================================
   섹션 7: CTA
   ============================================ */
.lemon-cta {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink-medium) 100%);
    color: #fff;
}

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

.cta-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 3rem;
    color: #fff;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.cta-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
}

.cta-feature-item i {
    color: var(--emerald);
    font-size: 1.25rem;
}

/* ============================================
   반응형 디자인
   ============================================ */
@media (max-width: 768px) {
    .lemon-container {
        padding: 0 1rem;
    }

    .hero-inner {
        padding: 200px 1.25rem 5rem;
    }

    .hero-title-main {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-meta-row {
        gap: 0.5rem;
    }

    .meta-badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.75rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .service-cards {
        grid-template-columns: 1fr;
    }

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

    .esl-content {
        grid-template-columns: 1fr;
    }

    .test-sections {
        grid-template-columns: 1fr;
    }

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

    .cta-features {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .card-buttons {
        flex-direction: column;
    }

    .card-btn {
        width: 100%;
    }
}