/* CSS Variables - 오방색 철학을 현대적으로 재해석 */
:root {
    /* 색상 팔레트 */
    --color-primary-red: #D4A574; /* 적색(火) - 따뜻한 갈색으로 조화 */
    --color-primary-blue: #8B9DC3; /* 청색(水) */
    --color-primary-yellow: #F4E4BC; /* 황색(土) */
    --color-primary-white: #F8F6F0; /* 백색(金) */
    --color-primary-black: #3D3522; /* 흑색(木) */
    
    /* 베이스 컬러 */
    --color-cream: #FFF9F0;
    --color-ivory: #FDF8F3;
    --color-beige: #E8DCC6;
    --color-brown: #8B6F47;
    --color-dark-brown: #5C4A2E;
    
    /* 텍스트 컬러 */
    --text-primary: #2C2415;
    --text-secondary: #5C4A2E;
    --text-light: #8B6F47;
    
    /* 폰트 */
    --font-korean: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-english: 'Playfair Display', serif;
    
    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* 레이아웃 */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    /* 전환 효과 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-korean);
    color: var(--text-primary);
    background-color: var(--color-cream);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 249, 240, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-dark-brown);
    transition: var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-brown);
    background-color: var(--color-primary-yellow);
}

@media (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-cream);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
    }
}

/* Section Common Styles */
.section {
    padding: var(--spacing-xxl) 0;
    scroll-margin-top: 80px;
}

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

.section-title {
    font-family: var(--font-english);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-sm);
}

.brand-name-light {
    color: var(--text-light);
    font-weight: 400;
    opacity: 0.6;
    font-size: 0.75em;
}

.brand-name-bold {
    color: var(--color-dark-brown);
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    font-style: italic;
}

@media (max-width: 767px) {
    .section-title {
        font-size: 2rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-ivory) 100%);
    position: relative;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-xl);
}

.hero-logo {
    max-width: 400px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-family: var(--font-english);
    font-size: 2rem;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease 0.4s both;
}

.scroll-indicator {
    display: inline-block;
    margin-top: var(--spacing-xl);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--color-brown);
    border-bottom: 2px solid var(--color-brown);
    transform: rotate(45deg);
}

@media (max-width: 767px) {
    .hero-logo {
        max-width: 280px;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}

/* About Section */
.about {
    background-color: var(--color-white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.about-text .lead {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.9;
}

.about-text p {
    margin-bottom: var(--spacing-md);
}

.about-text strong {
    color: var(--color-brown);
    font-weight: 600;
}

/* Differentiation Section */
.differentiation {
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-cream) 100%);
}

.differentiation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .differentiation-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.differentiation-card {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-normal);
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.differentiation-card h3 {
    font-size: 1.3rem;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.differentiation-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Products Section */
.products {
    background-color: var(--color-white);
}

.product-category {
    margin-bottom: var(--spacing-xxl);
}

.category-title {
    font-family: var(--font-english);
    font-size: 2rem;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.category-description {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.product-grid-large {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .product-grid-large {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.product-image-placeholder {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--color-primary-yellow) 0%, var(--color-beige) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-dark-brown);
    font-weight: 500;
}

.product-image {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    object-position: top center;
    display: block;
    background-color: white;
}

.product-image-jatsulgi {
    max-height: 300px;
    border-radius: 12px;
    margin: var(--spacing-sm) auto;
    width: 90%;
}

.product-card h4 {
    padding: var(--spacing-md);
    font-size: 1.2rem;
    color: var(--color-dark-brown);
    font-weight: 600;
}

.product-card p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Product Details Styling */
.product-tagline {
    font-style: italic;
    color: var(--color-brown);
    font-weight: 500;
    margin: var(--spacing-xs) var(--spacing-md) 0;
    font-size: 0.95rem;
}

.product-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
    font-weight: 400;
}

.product-details {
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.product-description {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.product-layers {
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.product-layers ul {
    margin-top: var(--spacing-xs);
    padding-left: var(--spacing-md);
}

.product-layers li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.product-spec {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-beige);
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.product-spec strong {
    color: var(--color-dark-brown);
    font-weight: 600;
}

/* Drink Categories */
.drink-category {
    margin-bottom: var(--spacing-xl);
}

.drink-category-title {
    font-size: 1.3rem;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-primary-yellow);
    font-weight: 600;
}

.product-grid-drinks {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .product-grid-drinks {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .product-grid-drinks {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card-drink {
    min-height: auto;
}

.product-card-drink h5 {
    font-size: 1.1rem;
    padding: var(--spacing-sm) var(--spacing-md) 0;
    color: var(--color-dark-brown);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.product-image-drink {
    height: 180px;
    font-size: 1rem;
}

.signature-badge {
    display: inline-block;
    background-color: var(--color-brown);
    color: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.product-card-signature {
    border: 2px solid var(--color-primary-yellow);
}

/* Gallery Section */
.gallery {
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    cursor: pointer;
    aspect-ratio: 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    color: white;
    font-size: 2rem;
    padding: var(--spacing-md);
    cursor: pointer;
    z-index: 2001;
    transition: var(--transition-normal);
}

.lightbox-close {
    top: 20px;
    right: 20px;
    font-size: 3rem;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 0.7;
}

.lightbox-image {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

@media (max-width: 767px) {
    .lightbox-close,
    .lightbox-prev,
    .lightbox-next {
        font-size: 1.5rem;
        padding: var(--spacing-sm);
    }
}

/* Location Section */
.location {
    background-color: var(--color-white);
}

.location-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .location-content {
        grid-template-columns: 1fr 2fr;
    }
}

.location-info h3 {
    font-family: var(--font-english);
    font-size: 1.8rem;
    color: var(--color-dark-brown);
    margin-bottom: var(--spacing-lg);
}

.info-item {
    margin-bottom: var(--spacing-lg);
}

.info-item strong {
    display: block;
    color: var(--color-brown);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.info-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.info-item a {
    color: var(--color-brown);
    text-decoration: underline;
}

.info-item a:hover {
    color: var(--color-dark-brown);
}

.location-map {
    min-height: 400px;
    background-color: var(--color-primary-yellow);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-secondary);
}

.map-note {
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
    font-style: italic;
}

/* Contact Section */
.contact {
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-beige);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: white;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-brown);
    box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--color-brown);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn-submit:hover {
    background-color: var(--color-dark-brown);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-submit:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    background-color: var(--color-dark-brown);
    color: var(--color-primary-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-logo {
    height: 40px;
    width: auto;
}

.footer-brand p {
    font-family: var(--font-english);
    font-size: 1.1rem;
    color: var(--color-primary-white);
}

.footer .brand-name-light {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    opacity: 1;
    font-size: 0.75em;
}

.footer .brand-name-bold {
    color: var(--color-primary-white);
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--color-primary-white);
    opacity: 0.8;
    transition: var(--transition-normal);
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.7;
    font-size: 0.9rem;
}

@media (max-width: 767px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Utility Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Accessibility Improvements */
*:focus-visible {
    outline: 2px solid var(--color-brown);
    outline-offset: 2px;
}

.skip-to-content {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-dark-brown);
    color: white;
    padding: var(--spacing-sm);
    z-index: 10000;
    text-decoration: none;
}

.skip-to-content:focus {
    top: 0;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Improved mobile experience */
@media (max-width: 767px) {
    html {
        font-size: 14px;
    }
    
    .differentiation-grid,
    .product-grid,
    .product-grid-large {
        grid-template-columns: 1fr;
    }
    
    .location-content {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Tablet optimizations */
@media (min-width: 768px) and (max-width: 1023px) {
    .product-grid-large {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Button loading state */
.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Improved image loading */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* Print styles */
@media print {
    .navbar,
    .mobile-menu-toggle,
    .scroll-indicator,
    .contact,
    .footer {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
    
    body {
        background: white;
        color: black;
    }
}