/* ===================================
   Modern Premium Design - Variables
   =================================== */

:root {
    /* Premium Color Palette */
    --primary-dark: #0a1929;
    --primary-blue: #1e3a5f;
    --accent-gold: #c9a961;
    --accent-light: #e8d7b5;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-dark: #0a1929;
    
    /* Typography */
    --font-primary: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', 'Noto Sans KR', sans-serif;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-max: 1280px;
    
    /* Effects */
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.7;
    background-color: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Section */
.section {
    padding: var(--section-padding);
}

.section-dark {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #132337 100%);
    color: var(--bg-white);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-badge {
    display: inline-block;
    padding: 8px 24px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    color: var(--primary-dark);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: var(--primary-dark);
}

.section-dark .section-title {
    color: var(--bg-white);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-dark .section-description {
    color: rgba(255, 255, 255, 0.85);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 36px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

/* ===================================
   Header - Modern & Clean
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.5px;
}

.nav-list {
    display: flex;
    gap: 48px;
    list-style: none;
}

.nav-list a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: var(--transition);
}

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

.nav-list a:hover {
    color: var(--primary-blue);
}

.nav-list .cta-button {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: var(--bg-white);
    padding: 10px 28px;
    border-radius: var(--radius-sm);
}

.nav-list .cta-button::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-dark);
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    padding: 80px 40px 40px;
    z-index: 1001;
    transition: var(--transition);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-primary);
    cursor: pointer;
}

.mobile-nav-list {
    list-style: none;
}

.mobile-nav-list li {
    margin-bottom: 28px;
}

.mobile-nav-list a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
}

/* ===================================
   Hero Section - Premium & Modern
   =================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #0a1929 0%, #1e3a5f 50%, #2c5282 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(201, 169, 97, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(30, 58, 95, 0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    color: var(--bg-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 32px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: 0.5px;
}

.hero-badge i {
    color: var(--accent-gold);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 72px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 28px;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 22px;
    margin-bottom: 48px;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 48px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.hero-stat i {
    font-size: 36px;
    color: var(--accent-gold);
}

.hero-stat span {
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    line-height: 1.5;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Products Showcase Section */
.products-showcase {
    position: relative;
    margin-top: 80px;
    padding: 60px 40px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

/* 헤더 텍스트 */
.products-showcase-header {
    text-align: center;
    margin-bottom: 50px;
}

.products-showcase-brand {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 24px;
    line-height: 1.4;
    letter-spacing: -0.5px;
}

.products-showcase-brand span {
    display: block;
    font-size: 20px;
    font-weight: 400;
    margin-top: 8px;
    opacity: 0.9;
}

.products-showcase-desc {
    font-size: 17px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto;
}

.products-showcase-desc strong {
    color: var(--bg-white);
    font-weight: 600;
}

.products-showcase-desc .highlight {
    color: var(--accent-light);
}

.products-showcase-desc .brand-highlight {
    color: var(--accent-gold);
    font-weight: 700;
}

/* 구분선 */
.products-showcase-divider {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    margin: 40px auto;
}

.products-showcase-title {
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 50px;
    color: var(--accent-gold);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 제품 아이콘 그리드 */
.products-icons-grid {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.product-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
    transition: var(--transition);
}

.product-icon-item:hover {
    transform: translateY(-8px);
}

.product-icon-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 2px solid rgba(201, 169, 97, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.product-icon-circle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    opacity: 0;
    transition: var(--transition);
}

.product-icon-item:hover .product-icon-circle {
    border-color: var(--accent-gold);
    transform: rotate(360deg);
}

.product-icon-item:hover .product-icon-circle::before {
    opacity: 0.2;
}

.product-icon-circle i {
    font-size: 48px;
    color: var(--accent-gold);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.product-icon-item:hover .product-icon-circle i {
    color: var(--bg-white);
    transform: scale(1.1);
}

.product-icon-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.5;
    letter-spacing: -0.2px;
}

/* Apartment Brands Section */
.apartment-brands {
    position: relative;
    margin-top: 50px;
    padding: 60px 40px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.apartment-brands-header {
    text-align: center;
    margin-bottom: 40px;
}

.apartment-brands-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--accent-gold);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.apartment-brands-subtitle {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

.apartment-brands-subtitle strong {
    color: var(--bg-white);
    font-weight: 700;
}

.apartment-brands-image-wrapper {
    background: rgba(255, 255, 255, 0.03);
    padding: 30px;
    border-radius: var(--radius-lg);
    margin-bottom: 36px;
}

.apartment-brands-image {
    width: 100%;
    height: auto;
    opacity: 0.95;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.apartment-brands-image:hover {
    opacity: 1;
    transform: scale(1.01);
}

.apartment-brands-footer {
    text-align: center;
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.85);
}

.apartment-brands-footer .brand-highlight {
    color: var(--accent-gold);
    font-weight: 700;
}

/* ===================================
   About Section - Promises
   =================================== */

.about {
    background: var(--bg-light);
}

.promises-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.promise-card {
    background: var(--bg-white);
    border: 1px solid rgba(30, 58, 95, 0.08);
    border-radius: var(--radius-lg);
    padding: 48px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.promise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--accent-gold), var(--accent-light));
    transition: var(--transition);
}

.promise-card:hover::before {
    height: 100%;
}

.promise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.promise-card-center {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
}

.promise-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
}

.promise-icon i {
    font-size: 32px;
    color: var(--bg-white);
}

.promise-card h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--primary-dark);
    letter-spacing: -0.5px;
}

.promise-card p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.promise-features {
    list-style: none;
}

.promise-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.promise-features i {
    color: var(--accent-gold);
    font-size: 14px;
}

/* ===================================
   Problems Section
   =================================== */

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.problem-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    text-align: center;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-gold);
    box-shadow: var(--shadow-xl);
}

.problem-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
}

.problem-icon i {
    font-size: 32px;
    color: var(--primary-dark);
}

.problem-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.3px;
}

.problem-card p {
    font-size: 15px;
    opacity: 0.92;
    line-height: 1.7;
}

/* ===================================
   Products Section - Clean Layout
   =================================== */

.products {
    background: var(--bg-light);
}

.products-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    max-width: 1120px;
    margin: 0 auto;
    justify-content: center;
}

.product-card {
    width: 340px;
    min-height: 340px;
    
    background: var(--bg-white);
    border: 1px solid rgba(30, 58, 95, 0.08);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    text-align: center;
    transition: var(--transition);
    
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-light));
    transform: scaleX(0);
    transition: var(--transition);
}

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

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.product-icon {
    width: 88px;
    height: 88px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    transition: var(--transition);
}

.product-card:hover .product-icon {
    transform: rotate(360deg) scale(1.08);
}

.product-icon i {
    font-size: 40px;
    color: var(--bg-white);
}

.product-card h3 {
    font-size: 21px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary-dark);
    letter-spacing: -0.3px;
}

.product-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.product-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    color: var(--primary-dark);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* ===================================
   Process Section
   =================================== */

.process-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.process-step {
    display: flex;
    gap: 36px;
    margin-bottom: 48px;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 31px;
    top: 64px;
    width: 2px;
    height: calc(100% + 48px);
    background: linear-gradient(180deg, var(--accent-gold), transparent);
}

.process-number {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
}

.process-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.3px;
}

.process-content p {
    font-size: 16px;
    opacity: 0.92;
    line-height: 1.8;
}

/* ===================================
   FAQ Section
   =================================== */

.faq {
    background: var(--bg-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid rgba(30, 58, 95, 0.08);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    letter-spacing: -0.2px;
}

.faq-question i {
    color: var(--accent-gold);
    transition: var(--transition);
    font-size: 18px;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 600px;
}

.faq-answer p {
    padding: 0 32px 28px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 16px;
}

/* ===================================
   Contact Section
   =================================== */

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.contact-item {
    display: flex;
    gap: 24px;
    align-items: start;
}

.contact-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    font-size: 24px;
    color: var(--primary-dark);
}

.contact-details h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.2px;
}

.contact-details p {
    font-size: 16px;
    opacity: 0.92;
    line-height: 1.7;
}

.contact-details a {
    color: var(--bg-white);
    text-decoration: none;
    transition: var(--transition);
}

.contact-details a:hover {
    color: var(--accent-gold);
}

.contact-cta-box {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 60px 48px;
    text-align: center;
}

.contact-cta-box h3 {
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.contact-cta-box p {
    font-size: 17px;
    margin-bottom: 36px;
    opacity: 0.92;
    line-height: 1.7;
}

/* ===================================
   Footer - Modern & Clean
   =================================== */

.footer {
    background: var(--bg-dark);
    color: var(--bg-white);
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-info h3 {
    font-family: var(--font-heading);
    font-size: 30px;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.footer-description {
    opacity: 0.85;
    line-height: 1.8;
    font-size: 16px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-gold);
    letter-spacing: -0.2px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 14px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
}

.footer-column a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-company-info {
    margin-bottom: 24px;
}

.footer-company-info p {
    font-size: 14px;
    opacity: 0.75;
    margin-bottom: 10px;
    line-height: 1.6;
}

.footer-copyright {
    font-size: 14px;
    opacity: 0.65;
    text-align: center;
}

/* ===================================
   Scroll to Top Button
   =================================== */

.scroll-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    color: var(--primary-dark);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.scroll-to-top i {
    font-size: 20px;
}

/* ===================================
   플로팅 온라인 접수 버튼 (날개형)
   =================================== */

.floating-booking-btn {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: var(--bg-white);
    padding: 16px 20px 16px 16px;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    text-decoration: none;
    box-shadow: -4px 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 998;
    transition: var(--transition);
    cursor: pointer;
}

.floating-booking-btn:hover {
    right: 0;
    padding-right: 24px;
    box-shadow: -6px 6px 30px rgba(0, 0, 0, 0.3);
}

.floating-btn-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.floating-btn-icon i {
    font-size: 24px;
    color: var(--bg-white);
}

.floating-btn-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.floating-btn-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
}

.floating-btn-subtitle {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.2;
}

/* ===================================
   하단 고정 접수 바
   =================================== */

.bottom-booking-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(180deg, var(--primary-dark), var(--bg-dark));
    border-top: 2px solid var(--accent-gold);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    z-index: 997;
    padding: 16px 0;
    transition: transform 0.3s ease;
}

.bottom-bar-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.bottom-bar-text {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--bg-white);
}

.bottom-bar-text > i {
    font-size: 32px;
    color: var(--accent-gold);
}

.bottom-bar-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.bottom-bar-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.2;
}

.bottom-bar-subtitle {
    font-size: 14px;
    opacity: 0.85;
    line-height: 1.2;
}

.bottom-bar-actions {
    display: flex;
    gap: 12px;
}

.bottom-bar-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.bottom-bar-btn-phone {
    background: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.bottom-bar-btn-phone:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--accent-gold);
}

.bottom-bar-btn-booking {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-light));
    color: var(--primary-dark);
    font-weight: 700;
}

.bottom-bar-btn-booking:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.4);
}

.bottom-bar-btn i {
    font-size: 16px;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .section-title {
        font-size: 48px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .apartment-brands {
        padding: 50px 32px;
    }
    
    .apartment-brands-title {
        font-size: 15px;
    }
    
    .apartment-brands-subtitle {
        font-size: 17px;
    }
    
    .apartment-brands-image-wrapper {
        padding: 24px;
    }
    
    .apartment-brands-footer {
        font-size: 15px;
    }
    
    /* Products Showcase - 태블릿 */
    .products-showcase {
        padding: 50px 32px;
        margin-top: 60px;
    }
    
    .products-showcase-brand {
        font-size: 28px;
    }
    
    .products-showcase-brand span {
        font-size: 18px;
    }
    
    .products-showcase-desc {
        font-size: 16px;
    }
    
    .products-icons-grid {
        gap: 32px;
    }
    
    .product-icon-circle {
        width: 100px;
        height: 100px;
    }
    
    .product-icon-circle i {
        font-size: 40px;
    }
    
    .product-icon-item h4 {
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    /* Typography */
    .section-title {
        font-size: 38px;
    }
    
    .hero-title {
        font-size: 42px;
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    /* Header */
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    /* Hero */
    .hero {
        padding-top: 100px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 28px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    
    /* Apartment Brands */
    .apartment-brands {
        margin-top: 40px;
        padding: 40px 24px;
    }
    
    .apartment-brands-header {
        margin-bottom: 32px;
    }
    
    .apartment-brands-title {
        font-size: 14px;
        margin-bottom: 16px;
    }
    
    .apartment-brands-subtitle {
        font-size: 16px;
    }
    
    .apartment-brands-image-wrapper {
        padding: 20px;
        margin-bottom: 28px;
    }
    
    .apartment-brands-footer {
        font-size: 14px;
        line-height: 1.8;
    }
    
    /* Products Showcase - 모바일 */
    .products-showcase {
        margin-top: 60px;
        padding: 40px 24px;
    }
    
    .products-showcase-header {
        margin-bottom: 40px;
    }
    
    .products-showcase-brand {
        font-size: 24px;
    }
    
    .products-showcase-brand span {
        font-size: 16px;
    }
    
    .products-showcase-desc {
        font-size: 15px;
        line-height: 1.8;
    }
    
    .products-showcase-title {
        font-size: 15px;
        margin-bottom: 40px;
    }
    
    .products-icons-grid {
        gap: 32px;
        flex-wrap: wrap;
    }
    
    .product-icon-circle {
        width: 90px;
        height: 90px;
    }
    
    .product-icon-circle i {
        font-size: 36px;
    }
    
    .product-icon-item h4 {
        font-size: 13px;
    }
    
    /* Promises */
    .promises-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .promise-card-center {
        max-width: 100%;
    }
    
    .promise-card,
    .problem-card {
        padding: 36px 28px;
    }
    
    /* Products */
    .product-card {
        width: 100%;
        max-width: 420px;
    }
    
    /* Process */
    .process-step {
        gap: 24px;
    }
    
    .process-number {
        width: 56px;
        height: 56px;
        font-size: 22px;
    }
    
    .process-step:not(:last-child)::after {
        left: 27px;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-cta-box {
        padding: 48px 36px;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Spacing */
    :root {
        --section-padding: 80px 0;
    }
    
    .section-header {
        margin-bottom: 60px;
    }
}

@media (max-width: 480px) {
    /* Typography */
    .section-title {
        font-size: 32px;
    }
    
    .hero-title {
        font-size: 36px;
        letter-spacing: -0.5px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-badge {
        font-size: 11px;
        padding: 6px 18px;
    }
    
    /* Header */
    .logo h1 {
        font-size: 22px;
    }
    
    /* Buttons */
    .btn-large {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    /* Hero */
    .hero-badge {
        font-size: 12px;
        padding: 10px 24px;
    }
    
    .hero-stat i {
        font-size: 28px;
    }
    
    .hero-stat span {
        font-size: 13px;
    }
    
    /* Apartment Brands */
    .apartment-brands {
        padding: 32px 20px;
        margin-top: 32px;
    }
    
    .apartment-brands-header {
        margin-bottom: 28px;
    }
    
    .apartment-brands-title {
        font-size: 13px;
        margin-bottom: 14px;
    }
    
    .apartment-brands-subtitle {
        font-size: 15px;
    }
    
    .apartment-brands-image-wrapper {
        padding: 16px;
        margin-bottom: 24px;
    }
    
    .apartment-brands-footer {
        font-size: 13px;
        line-height: 1.7;
    }
    
    /* Products Showcase - 작은 모바일 */
    .products-showcase {
        padding: 32px 20px;
        margin-top: 48px;
    }
    
    .products-showcase-header {
        margin-bottom: 36px;
    }
    
    .products-showcase-brand {
        font-size: 22px;
    }
    
    .products-showcase-brand span {
        font-size: 14px;
    }
    
    .products-showcase-desc {
        font-size: 14px;
        line-height: 1.7;
    }
    
    .products-showcase-title {
        font-size: 14px;
        margin-bottom: 36px;
    }
    
    .products-icons-grid {
        gap: 28px;
    }
    
    .product-icon-circle {
        width: 80px;
        height: 80px;
    }
    
    .product-icon-circle i {
        font-size: 32px;
    }
    
    .product-icon-item h4 {
        font-size: 12px;
    }
    
    /* Cards */
    .promise-card,
    .problem-card,
    .product-card {
        padding: 32px 24px;
    }
    
    .product-card {
        width: 100%;
        max-width: 100%;
        min-height: 300px;
    }
    
    .promise-icon,
    .problem-icon,
    .product-icon {
        width: 64px;
        height: 64px;
    }
    
    .promise-icon i,
    .problem-icon i,
    .product-icon i {
        font-size: 28px;
    }
    
    /* Process */
    .process-step {
        gap: 20px;
    }
    
    .process-number {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    
    .process-step:not(:last-child)::after {
        left: 23px;
    }
    
    .process-content h3 {
        font-size: 20px;
    }
    
    .process-content p {
        font-size: 15px;
    }
    
    /* FAQ */
    .faq-question {
        padding: 24px;
    }
    
    .faq-question h3 {
        font-size: 16px;
    }
    
    .faq-answer p {
        padding: 0 24px 24px;
        font-size: 15px;
    }
    
    /* Contact */
    .contact-cta-box {
        padding: 40px 28px;
    }
    
    .contact-cta-box h3 {
        font-size: 26px;
    }
    
    .contact-cta-box p {
        font-size: 15px;
    }
    
    .contact-icon {
        width: 48px;
        height: 48px;
    }
    
    .contact-icon i {
        font-size: 20px;
    }
    
    /* Footer */
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-info h3 {
        font-size: 26px;
    }
    
    /* Scroll to Top */
    .scroll-to-top {
        width: 48px;
        height: 48px;
        bottom: 90px;
        right: 24px;
    }
    
    /* 플로팅 버튼 - 모바일 */
    .floating-booking-btn {
        padding: 12px 16px 12px 12px;
    }
    
    .floating-btn-icon {
        width: 40px;
        height: 40px;
        margin-right: 10px;
    }
    
    .floating-btn-icon i {
        font-size: 20px;
    }
    
    .floating-btn-title {
        font-size: 14px;
    }
    
    .floating-btn-subtitle {
        font-size: 11px;
    }
    
    /* 하단 바 - 모바일 */
    .bottom-booking-bar {
        padding: 12px 0;
    }
    
    .bottom-bar-content {
        flex-direction: column;
        gap: 16px;
        padding: 0 20px;
    }
    
    .bottom-bar-text {
        gap: 12px;
    }
    
    .bottom-bar-text > i {
        font-size: 28px;
    }
    
    .bottom-bar-title {
        font-size: 16px;
    }
    
    .bottom-bar-subtitle {
        font-size: 13px;
    }
    
    .bottom-bar-actions {
        width: 100%;
        flex-direction: column;
        gap: 10px;
    }
    
    .bottom-bar-btn {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        font-size: 14px;
    }
    
    /* Spacing */
    :root {
        --section-padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 48px;
    }
    
    .container {
        padding: 0 20px;
    }
}