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

:root {
    /* Colors - Light Mode */
    --color-background: hsl(0, 0%, 100%);
    --color-foreground: hsl(0, 0%, 10%);
    --color-muted-foreground: hsl(220, 8%, 40%);
    --color-primary: hsl(220, 90%, 50%);
    --color-primary-hover: hsl(220, 90%, 45%);
    --color-primary-foreground: hsl(220, 90%, 98%);
    --color-border: hsl(0, 0%, 90%);
    --color-card: hsl(0, 0%, 98%);
    --color-card-border: hsl(0, 0%, 94%);
    
    /* Shadows */
    --shadow-sm: 0px 2px 4px 0px hsl(220 20% 20% / 0.05), 0px 1px 2px -1px hsl(220 20% 20% / 0.04);
    --shadow-md: 0px 6px 12px -2px hsl(220 20% 20% / 0.08), 0px 3px 6px -2px hsl(220 20% 20% / 0.05);
    --shadow-lg: 0px 10px 20px -4px hsl(220 20% 20% / 0.10), 0px 4px 8px -2px hsl(220 20% 20% / 0.06);
    --shadow-2xl: 0px 30px 50px -12px hsl(220 20% 20% / 0.15);
    
    /* Typography */
    --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    
    /* Spacing */
    --container-max-width: 1280px;
    --container-narrow: 896px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-background);
    color: var(--color-foreground);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container, .container-narrow {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container, .container-narrow {
        padding: 0 2rem;
    }
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

#header.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-foreground);
    text-decoration: none;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: 0.25rem;
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--color-foreground);
    text-decoration: none;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.nav-link.active {
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-foreground);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.close-icon {
    display: none;
}

.mobile-menu-btn.active .menu-icon {
    display: none;
}

.mobile-menu-btn.active .close-icon {
    display: block;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
}

.mobile-menu.active {
    display: flex;
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

.mobile-nav-link {
    padding: 0.75rem 1rem;
    color: var(--color-foreground);
    text-decoration: none;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.mobile-nav-link:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.mobile-nav-link.active {
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
}

/* Hero Section */
.hero {
    padding-top: 8rem;
    padding-bottom: 5rem;
}

@media (min-width: 1024px) {
    .hero {
        padding-top: 10rem;
        padding-bottom: 7rem;
    }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 2fr 3fr;
        gap: 4rem;
    }
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

@media (min-width: 1280px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-muted-foreground);
    line-height: 1.75;
    margin-bottom: 2rem;
}

@media (min-width: 1024px) {
    .hero-description {
        font-size: 1.25rem;
    }
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.check-icon {
    flex-shrink: 0;
    color: var(--color-primary);
}

.feature-item span {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.hero-image {
    position: relative;
}

.image-wrapper {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    aspect-ratio: 16 / 9;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blur-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(64px);
    z-index: -1;
}

.blur-1 {
    bottom: -1.5rem;
    left: -1.5rem;
    width: 8rem;
    height: 8rem;
    background-color: hsla(220, 90%, 50%, 0.1);
}

.blur-2 {
    top: -1.5rem;
    right: -1.5rem;
    width: 10rem;
    height: 10rem;
    background-color: hsla(220, 90%, 50%, 0.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-primary-foreground);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
}

.btn-outline {
    border-color: var(--color-border);
    color: var(--color-foreground);
    background-color: transparent;
}

.btn-outline:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* Section */
.section {
    padding: 5rem 0;
}

@media (min-width: 1024px) {
    .section {
        padding: 7rem 0;
    }
}

.section-border {
    border-top: 1px solid var(--color-border);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 2.25rem;
    }
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-muted-foreground);
    max-width: 42rem;
    margin: 0 auto;
}

.section-footer {
    text-align: center;
    margin-top: 3rem;
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-3 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.grid-4 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Card */
.card {
    background-color: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: 0.75rem;
    transition: all 0.3s;
    cursor: pointer;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Service Card */
.service-card {
    padding: 1.5rem;
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
    background-color: hsla(220, 90%, 50%, 0.1);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.card-description {
    color: var(--color-muted-foreground);
    line-height: 1.7;
}

/* Portfolio Card */
.portfolio-card {
    overflow: hidden;
}

.portfolio-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.05);
}

.card-content {
    padding: 1rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    background-color: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: 9999px;
    margin-bottom: 0.5rem;
}

/* Blog Card */
.blog-card {
    overflow: hidden;
}

.blog-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.blog-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
}

/* CTA Section */
.cta-content {
    text-align: center;
}

.cta-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

@media (min-width: 1024px) {
    .cta-title {
        font-size: 2.25rem;
    }
}

@media (min-width: 1280px) {
    .cta-title {
        font-size: 3rem;
    }
}

.cta-description {
    font-size: 1.125rem;
    color: var(--color-muted-foreground);
    max-width: 42rem;
    margin: 0 auto 2.5rem;
}

@media (min-width: 1024px) {
    .cta-description {
        font-size: 1.25rem;
    }
}

.mobile-break {
    display: inline;
}

@media (min-width: 640px) {
    .mobile-break {
        display: none;
    }
}

/* Utility */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* About Section */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.about-description {
    color: var(--color-muted-foreground);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-muted-foreground);
}

.about-image {
    position: relative;
    border-radius: 0.5rem;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.company-info {
    background-color: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: 0.5rem;
    padding: 2rem;
}

.info-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.info-item svg {
    flex-shrink: 0;
    margin-top: 0.25rem;
    color: var(--color-primary);
}

.info-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-muted-foreground);
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-foreground);
}

/* Product Card (Shop) */
.product-card {
    overflow: hidden;
}

.product-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-card-border);
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (min-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 0.5rem;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.25rem;
}

.gallery-overlay p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}