/* ========================================
   LUXURY EDITORIAL SHOP DESIGN
   Black & White Theme
======================================== */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-50: #F8F8F8;
    --color-gray-100: #F0F0F0;
    --color-gray-200: #E0E0E0;
    --color-gray-300: #CCCCCC;
    --color-gray-400: #999999;
    --color-gray-500: #666666;
    --color-gray-600: #4A4A4A;
    --color-gray-700: #333333;
    --color-gray-800: #1A1A1A;
    
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'Noto Sans KR', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

/* ========================================
   NAVIGATION
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    text-decoration: none !important;
    color: var(--color-black) !important;
}

.logo:hover {
    text-decoration: none !important;
    color: var(--color-black) !important;
}

.logo:visited {
    color: var(--color-black) !important;
}

.logo:active {
    color: var(--color-black) !important;
}

.logo h1 {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-black) !important;
    text-decoration: none !important;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 50px;
}

.nav-menu a {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--color-gray-600);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-black);
    transition: var(--transition-smooth);
}

.nav-menu a:hover {
    color: var(--color-black);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 1px;
    background-color: var(--color-black);
    transition: var(--transition-fast);
}

/* ========================================
   HERO SECTION
======================================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
}

.hero-content {
    text-align: center;
    padding: 0 20px;
}

.hero-label {
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
    margin-bottom: 30px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(48px, 8vw, 90px);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 40px;
    color: var(--color-black);
}

.hero-divider {
    width: 60px;
    height: 1px;
    background-color: var(--color-black);
    margin: 0 auto 40px;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.scroll-indicator {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.scroll-indicator span {
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--color-gray-400);
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-gray-400), transparent);
}

/* ========================================
   INTRO SECTION
======================================== */
.intro {
    padding: 150px 0;
    background-color: var(--color-gray-50);
}

.intro-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 100px;
}

.section-number {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--color-gray-400);
    letter-spacing: 0.1em;
    margin-bottom: 40px;
}

.section-title {
    font-size: clamp(36px, 4vw, 56px);
    line-height: 1.1;
    font-weight: 300;
    margin-bottom: 30px;
}

.intro-lead {
    font-size: 22px;
    line-height: 1.6;
    color: var(--color-black);
    margin-bottom: 30px;
}

.intro-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-600);
    margin-bottom: 60px;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-gray-200);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 300;
    color: var(--color-black);
}

.stat-label {
    font-size: 13px;
    color: var(--color-gray-500);
    letter-spacing: 0.05em;
}

/* ========================================
   PRODUCTS SECTION
======================================== */
.products {
    padding: 150px 0;
    background-color: var(--color-white);
}

.section-header-minimal {
    margin-bottom: 80px;
}

.category-filter {
    display: flex;
    gap: 30px;
    margin-bottom: 60px;
    justify-content: center;
}

.filter-btn {
    font-size: 13px;
    letter-spacing: 0.1em;
    padding: 10px 0;
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-black);
    transition: var(--transition-smooth);
}

.filter-btn.active,
.filter-btn:hover {
    color: var(--color-black);
}

.filter-btn.active::after,
.filter-btn:hover::after {
    width: 100%;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 60px 40px;
}

.product-card {
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-image {
    position: relative;
    aspect-ratio: 3/4;
    background-color: var(--color-gray-50);
    margin-bottom: 20px;
    overflow: hidden;
}

.product-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--color-gray-300);
    letter-spacing: 0.1em;
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--color-black);
    color: var(--color-white);
    font-size: 10px;
    letter-spacing: 0.1em;
    padding: 6px 12px;
}

.product-info {
    text-align: left;
}

.product-name {
    font-size: 16px;
    font-weight: 400;
    margin-bottom: 10px;
    color: var(--color-black);
}

.product-price-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-price {
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--color-black);
}

.product-original-price {
    font-size: 14px;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.product-card:hover .product-image {
    transform: translateY(-5px);
}

/* ========================================
   HOW IT WORKS SECTION
======================================== */
.how-it-works {
    padding: 150px 0;
    background-color: var(--color-gray-50);
}

.section-header-centered {
    text-align: center;
    margin-bottom: 100px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-gray-600);
    margin-top: 20px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
}

.step-card {
    text-align: center;
}

.step-number {
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 300;
    color: var(--color-gray-200);
    margin-bottom: 30px;
}

.step-title {
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
    color: var(--color-black);
}

.step-text {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-gray-600);
}

/* ========================================
   PARTNERSHIP SECTION
======================================== */
.partnership {
    padding: 150px 0;
    background-color: var(--color-white);
}

.partnership-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.partnership-lead {
    font-size: 28px;
    line-height: 1.4;
    margin: 30px 0 40px;
    color: var(--color-black);
}

.partnership-list {
    list-style: none;
    margin-bottom: 50px;
}

.partnership-list li {
    font-size: 15px;
    line-height: 2;
    color: var(--color-gray-600);
    padding-left: 30px;
    position: relative;
}

.partnership-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-gray-400);
}

.btn-minimal {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.1em;
    color: var(--color-black);
    text-decoration: none;
    padding: 15px 0;
    border-bottom: 1px solid var(--color-black);
    transition: var(--transition-fast);
}

.btn-minimal:hover {
    padding-left: 10px;
}

.image-placeholder-minimal {
    aspect-ratio: 4/5;
    background-color: var(--color-gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    letter-spacing: 0.2em;
    color: var(--color-gray-300);
}

/* ========================================
   CONTACT SECTION
======================================== */
.contact {
    padding: 150px 0;
    background-color: var(--color-gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 100px;
    margin-top: 80px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.contact-item {
    border-top: 1px solid var(--color-gray-200);
    padding-top: 20px;
}

.contact-label {
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
    margin-bottom: 15px;
}

.contact-value {
    font-size: 18px;
    color: var(--color-black);
    margin-bottom: 10px;
}

.contact-sub {
    font-size: 13px;
    color: var(--color-gray-500);
}

.contact-form {
    background-color: var(--color-white);
    padding: 60px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px 0;
    border: none;
    border-bottom: 1px solid var(--color-gray-200);
    font-family: var(--font-body);
    font-size: 14px;
    background: transparent;
    transition: var(--transition-fast);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-bottom-color: var(--color-black);
}

.contact-form textarea {
    resize: none;
    margin-top: 20px;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    margin-top: 30px;
    background-color: var(--color-black);
    color: var(--color-white);
    border: none;
    font-size: 13px;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-submit:hover {
    background-color: var(--color-gray-700);
}

/* ========================================
   FOOTER
======================================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 100px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 100px;
    margin-bottom: 80px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 500;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--color-gray-400);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
}

.footer-col h5 {
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--color-gray-400);
    margin-bottom: 25px;
    font-weight: 400;
}

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

.footer-col li {
    margin-bottom: 15px;
}

.footer-col a {
    font-size: 14px;
    color: var(--color-gray-300);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--color-gray-700);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--color-gray-500);
    letter-spacing: 0.05em;
}

/* ========================================
   FLOATING BUTTON
======================================== */
.floating-order-btn {
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 999;
}

.floating-order-btn a {
    display: block;
    padding: 18px 35px;
    background-color: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 0.1em;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
}

.floating-order-btn a:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ========================================
   PRODUCT DETAIL MODAL
======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    overflow-y: auto;
    padding: 80px 20px 40px;
}

.modal.active {
    display: block;
}

.modal-content {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--color-white);
    position: relative;
}

.modal-close {
    position: fixed;
    top: 30px;
    right: 40px;
    font-size: 40px;
    color: var(--color-white);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 2001;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    transform: rotate(90deg);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.modal-image {
    aspect-ratio: 1;
    background-color: var(--color-gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--color-gray-300);
    letter-spacing: 0.1em;
}

.modal-info {
    padding: 60px;
}

.modal-badge {
    display: inline-block;
    background-color: var(--color-black);
    color: var(--color-white);
    font-size: 10px;
    letter-spacing: 0.1em;
    padding: 6px 12px;
    margin-bottom: 30px;
}

.modal-title {
    font-size: 32px;
    font-weight: 400;
    margin-bottom: 20px;
}

.modal-price-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-price {
    font-family: var(--font-display);
    font-size: 28px;
    color: var(--color-black);
}

.modal-original-price {
    font-size: 18px;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.modal-description {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray-600);
    margin-bottom: 40px;
}

.modal-section {
    margin-bottom: 40px;
}

.modal-section-title {
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    font-size: 14px;
    line-height: 2;
    color: var(--color-gray-600);
    padding-left: 25px;
    position: relative;
}

.feature-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-gray-400);
}

.detail-grid {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 15px;
    font-size: 14px;
}

.detail-label {
    color: var(--color-gray-500);
}

.detail-value {
    color: var(--color-gray-700);
}

.modal-reviews {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-gray-200);
}

.review-item {
    margin-bottom: 25px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.review-rating {
    color: var(--color-black);
    font-size: 14px;
}

.review-author {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-700);
}

.review-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-gray-600);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */
@media (max-width: 1024px) {
    .container-wide {
        padding: 0 40px;
    }
    
    .intro-layout,
    .partnership-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .modal-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-info {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .container,
    .container-wide {
        padding: 0 20px;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--color-white);
        flex-direction: column;
        padding: 40px;
        gap: 30px;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--color-gray-200);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .intro,
    .products,
    .how-it-works,
    .partnership,
    .contact {
        padding: 80px 0;
    }
    
    .intro-stats {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 40px 30px;
    }
    
    .floating-order-btn {
        bottom: 20px;
        right: 20px;
    }
    
    .modal-close {
        top: 20px;
        right: 20px;
    }
    
    .modal-info {
        padding: 30px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}