/* ========================================
   Cinematic Video Production Portfolio
   시네마틱 영상 제작 기획서
   ======================================== */

/* ========== 기본 설정 ========== */
:root {
    /* Color Palette - Apple Style Gradient */
    --primary-bg: #0a0a0a;
    --secondary-bg: #121212;
    
    /* Apple-inspired Gradient Colors */
    --gradient-start: #667eea;
    --gradient-mid: #764ba2;
    --gradient-end: #f093fb;
    --gradient-accent: #4facfe;
    
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --border-color: #2a2a2a;
    --card-bg: rgba(18, 18, 18, 0.8);
    --card-hover: rgba(30, 30, 30, 0.9);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    --font-accent: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    
    /* Effects */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-main: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-mid) 50%, var(--gradient-end) 100%);
    --gradient-hover: linear-gradient(135deg, var(--gradient-accent) 0%, var(--gradient-start) 100%);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.4);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========== 로딩 화면 ========== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.film-strip {
    width: 100px;
    height: 4px;
    background: var(--gradient-main);
    position: relative;
    animation: filmRoll 1.5s infinite;
    margin-bottom: var(--spacing-sm);
}

@keyframes filmRoll {
    0%, 100% { width: 100px; }
    50% { width: 150px; }
}

.loader-content p {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: var(--font-accent);
    letter-spacing: 0.2em;
    font-size: 0.9rem;
}

/* ========== 헤더 & 네비게이션 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.logo .accent {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 0.2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--gradient-main);
    transition: var(--transition-smooth);
}

/* ========== 히어로 섹션 ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(118, 75, 162, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.3) 2px,
            rgba(0, 0, 0, 0.3) 4px
        );
    opacity: 0.1;
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-family: var(--font-accent);
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
}

.title-line {
    display: block;
}

.title-line:last-child {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-family: var(--font-accent);
    font-size: 1.2rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-accent);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.3rem;
}

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

.stat-divider {
    width: 1px;
    height: 50px;
    background: var(--border-color);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    background: var(--gradient-main);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-glow);
    border: none;
}

.cta-btn:hover {
    background: var(--gradient-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(102, 126, 234, 0.6);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-line {
    width: 2px;
    height: 60px;
    background: var(--gradient-main);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(20px); }
}

/* ========== 페이드인 애니메이션 ========== */
.fade-in {
    animation: fadeInUp 1s ease forwards;
}

.fade-in-delay {
    animation: fadeInUp 1s ease 0.3s forwards;
    opacity: 0;
}

.fade-in-delay-2 {
    animation: fadeInUp 1s ease 0.6s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== 섹션 공통 스타일 ========== */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.85rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    padding: 0.5rem 1.5rem;
    border: 1px solid;
    border-image: var(--gradient-main) 1;
}

.section-title {
    font-family: var(--font-accent);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* ========== 프로젝트 개요 섹션 ========== */
.overview-section {
    background: var(--secondary-bg);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.overview-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.overview-card:hover {
    background: var(--card-hover);
    border-image: var(--gradient-main) 1;
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid;
    border-image: var(--gradient-main) 1;
    color: var(--gradient-start);
}

.card-title {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
}

.card-value {
    font-family: var(--font-accent);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.card-description {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ========== 제작 요구사항 섹션 ========== */
.requirements-section {
    background: var(--primary-bg);
}

.requirements-wrapper {
    display: grid;
    gap: var(--spacing-lg);
}

.requirement-block {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.requirement-block:hover {
    border-image: var(--gradient-main) 1;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.requirement-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

.requirement-number {
    font-family: var(--font-accent);
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    opacity: 0.5;
}

.requirement-title {
    font-family: var(--font-accent);
    font-size: 1.8rem;
    font-weight: 600;
}

.requirement-list {
    display: grid;
    gap: var(--spacing-sm);
}

.requirement-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(102, 126, 234, 0.05);
    border-left: 3px solid;
    border-image: var(--gradient-main) 1;
    border-radius: 5px;
    transition: var(--transition-smooth);
}

.requirement-item:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(10px);
}

.item-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gradient-start);
}

.item-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.item-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== 제작 단계 섹션 ========== */
.process-section {
    background: var(--secondary-bg);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.timeline-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    position: relative;
}

.timeline-marker {
    width: 70px;
    height: 70px;
    background: var(--card-bg);
    border: 3px solid;
    border-image: var(--gradient-main) 1;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    position: relative;
    margin: 0 auto;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.marker-inner {
    font-family: var(--font-accent);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-line {
    display: none;
}

.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
    text-align: center;
    height: 100%;
}

.timeline-content:hover {
    background: var(--card-hover);
    border-image: var(--gradient-main) 1;
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.timeline-title {
    font-family: var(--font-accent);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.timeline-duration {
    display: inline-block;
    font-size: 0.85rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border: 1px solid;
    border-image: var(--gradient-main) 1;
    padding: 0.3rem 1rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

/* ========== 견적 섹션 ========== */
.quote-section {
    background: var(--primary-bg);
}

.quote-card {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    background: var(--card-bg);
    border: 2px solid;
    border-image: var(--gradient-main) 1;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
    backdrop-filter: blur(10px);
}

.quote-header {
    background: var(--gradient-main);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.quote-title {
    font-family: var(--font-accent);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-bg);
    flex: 1;
}

.quote-note {
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.8;
    display: block;
    margin-top: 0.1rem;
    line-height: 1.3;
}

.quote-badge {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    backdrop-filter: blur(10px);
    align-self: center;
}

.quote-body {
    padding: var(--spacing-lg);
}

.price-section {
    text-align: center;
    padding: var(--spacing-md) 0;
}

.price-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.price-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-xs);
}

.price-amount {
    font-family: var(--font-accent);
    font-size: 4.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.price-currency {
    font-size: 2rem;
    color: var(--text-primary);
    font-weight: 600;
}

.price-note {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.quote-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-md) 0;
}

.quote-details,
.quote-notes {
    margin: var(--spacing-md) 0;
}

.details-title,
.notes-title {
    font-family: var(--font-accent);
    font-size: 1.3rem;
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.details-list,
.notes-list {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.details-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    color: var(--text-secondary);
}

.details-list li svg {
    color: var(--gradient-start);
    flex-shrink: 0;
}

.notes-list li {
    padding-left: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.95rem;
    position: relative;
}

.notes-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--gradient-start);
}

.quote-footer {
    padding: var(--spacing-md);
    background: rgba(102, 126, 234, 0.05);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.quote-btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    background: var(--gradient-main);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-primary);
}

.quote-btn:hover {
    background: var(--gradient-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 0 50px rgba(102, 126, 234, 0.6);
}

.quote-btn-secondary {
    background: rgba(102, 126, 234, 0.1);
    border: 2px solid;
    border-image: var(--gradient-main) 1;
}

.quote-btn-secondary:hover {
    background: var(--gradient-main);
    color: var(--text-primary);
    border: none;
}

/* ========== 추가 옵션 ========== */
.additional-options {
    max-width: 1000px;
    margin: 0 auto;
}

.options-title {
    font-family: var(--font-accent);
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.option-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-smooth);
}

.option-card:hover {
    background: var(--card-hover);
    border-image: var(--gradient-main) 1;
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.option-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.option-price {
    font-family: var(--font-accent);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.option-price span {
    font-size: 1rem;
    color: var(--text-secondary);
}

.option-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ========== 푸터 ========== */
.footer {
    background: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    align-items: center;
}



.footer-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0;
    letter-spacing: 0.05em;
}

.footer-title .accent {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-description {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.footer-heading {
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.footer-list {
    list-style: none;
    display: grid;
    gap: 0.5rem;
}

.footer-list li {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
    position: relative;
}

.footer-link:hover {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== 반응형 디자인 ========== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .stat-divider {
        width: 100px;
        height: 1px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--secondary-bg);
        padding: var(--spacing-md);
        border-top: 1px solid var(--border-color);
    }
    
    .timeline {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .overview-card,
    .requirement-block,
    .timeline-content {
        padding: var(--spacing-sm);
    }
    
    .requirement-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .requirement-number {
        font-size: 2rem;
    }
    
    .requirement-title {
        font-size: 1.5rem;
    }
    
    .timeline-marker {
        width: 60px;
        height: 60px;
    }
    
    .marker-inner {
        font-size: 1.5rem;
    }
    
    .timeline-title {
        font-size: 1.2rem;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .quote-header {
        flex-direction: column;
        gap: 0.3rem;
        text-align: center;
        align-items: center;
        padding: 1rem;
    }
    
    .quote-card {
        border-width: 2px;
        margin: 0 0 var(--spacing-md) 0;
    }
    
    .quote-title {
        font-size: 1.6rem;
        line-height: 1.3;
    }
    
    .quote-note {
        font-size: 0.75rem;
        margin-top: 0.2rem;
    }
    
    .quote-badge {
        margin-top: 0.5rem;
    }
    
    .quote-body {
        padding: var(--spacing-sm);
    }
    
    .quote-footer {
        flex-direction: column;
        padding: var(--spacing-sm);
        gap: 0;
    }
    
    .quote-btn {
        width: 100%;
        padding: 0.9rem 1.5rem;
    }
    
    .price-amount {
        font-size: 3rem;
    }
    
    .details-list,
    .notes-list {
        gap: var(--spacing-xs);
    }
    
    .options-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .option-card {
        padding: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 992px) and (min-width: 769px) {
    .timeline {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .quote-header {
        padding: 0.8rem;
        gap: 0.2rem;
    }
    
    .quote-title {
        font-size: 1.2rem;
        line-height: 1.3;
    }
    
    .quote-note {
        font-size: 0.65rem;
        margin-top: 0.1rem;
    }
    
    .quote-badge {
        font-size: 0.7rem;
        padding: 0.35rem 0.9rem;
        margin-top: 0.4rem;
    }
    
    .quote-body {
        padding: 0.8rem;
    }
    
    .quote-footer {
        padding: 0.8rem;
    }
    
    .price-amount {
        font-size: 2.5rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-stats {
        padding: var(--spacing-sm);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .overview-card,
    .requirement-block,
    .timeline-content {
        padding: var(--spacing-sm);
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
    }
    
    .card-value {
        font-size: 1.5rem;
    }
    
    .timeline-marker {
        width: 50px;
        height: 50px;
    }
    
    .marker-inner {
        font-size: 1.3rem;
    }
    
    .timeline-title {
        font-size: 1.1rem;
    }
    
    .timeline-description {
        font-size: 0.85rem;
    }
    
    .details-list li {
        font-size: 0.9rem;
    }
    
    .notes-list li {
        font-size: 0.85rem;
    }
}

/* ========== 스크롤 애니메이션 ========== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 커스텀 스크롤바 ========== */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-main);
    border-radius: 5px;
}

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