:root {
    /* Apple Design Tokens */
    --color-ink: #1d1d1f;
    --color-black: #000000;
    --color-white: #ffffff;
    --color-action-blue: #0066cc;
    --color-sky-blue: #2997ff;
    --color-canvas-parchment: #f5f5f7;
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --spacing-section: 120px;
    --spacing-container: 1200px;
    
    --border-radius-pill: 9999px;
    --border-radius-lg: 18px;
    --border-radius-sm: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Typography */
.display-lg {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.display-md {
    font-size: 40px;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.015em;
}

.lead {
    font-size: 21px;
    font-weight: 400;
    color: #a1a1a6;
    margin-top: 20px;
}

.tagline {
    font-size: 19px;
    color: #86868b;
    margin-top: 10px;
}

/* Navigation */
.global-nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 48px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-content {
    max-width: var(--spacing-container);
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-weight: 600;
    letter-spacing: 0.1em;
    font-size: 14px;
}

.nav-links a {
    color: #f5f5f7;
    text-decoration: none;
    font-size: 12px;
    margin-left: 30px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

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

.nav-links .cta-button {
    background: var(--color-action-blue);
    padding: 6px 14px;
    border-radius: var(--border-radius-pill);
    opacity: 1;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.cta-group {
    margin-top: 40px;
    display: flex;
    gap: 20px;
    justify-content: center;
}

.button-primary {
    background: var(--color-action-blue);
    color: white;
    padding: 14px 28px;
    border-radius: var(--border-radius-pill);
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.2s;
}

.button-secondary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: white;
    padding: 14px 28px;
    border-radius: var(--border-radius-pill);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: transform 0.2s;
}

.button-primary:active, .button-secondary:active {
    transform: scale(0.95);
}

/* Services */
.services {
    padding: var(--spacing-section) 0;
    background: var(--color-ink);
}

.container {
    max-width: var(--spacing-container);
    margin: 0 auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.service-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.service-card {
    display: flex;
    align-items: center;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    min-height: 500px;
}

.tile-dark { background: #161617; }
.tile-light { background: #ffffff; color: #1d1d1f; }

.card-image {
    flex: 1;
    height: 100%;
}

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

.card-content {
    flex: 1;
    padding: 60px;
}

.card-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

/* Portfolio */
.portfolio {
    padding: var(--spacing-section) 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 60px;
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    font-weight: 500;
}

/* Location */
.location {
    padding: var(--spacing-section) 0;
    background: #000;
}

.map-placeholder {
    margin-top: 40px;
    width: 100%;
    height: 400px;
    background: #1c1c1e;
    border-radius: var(--border-radius-lg);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.map-placeholder:hover {
    transform: translateY(-5px);
    border-color: var(--color-action-blue);
}

.map-container-link {
    display: flex;
    width: 100%;
    height: 100%;
    text-decoration: none;
    align-items: center;
    justify-content: center;
    background-image: url('https://images.unsplash.com/photo-1524661135-423995f22d0b?auto=format&fit=crop&q=80&w=2000'); /* 다크 시티 맵 느낌의 배경 */
    background-size: cover;
    background-position: center;
}

.map-overlay {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    color: white;
}

.map-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-action-blue);
    border-radius: var(--border-radius-pill);
    font-size: 10px;
    font-weight: 700;
    margin-bottom: 15px;
}

.map-link-btn {
    display: inline-block;
    margin-top: 20px;
    color: var(--color-sky-blue);
    font-weight: 500;
    font-size: 14px;
}

/* Footer */
.footer {
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 12px;
    color: #86868b;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive */
@media (max-width: 768px) {
    .display-lg { font-size: 34px; }
    .display-md { font-size: 28px; }
    .nav-links { display: none; }
    .service-card { flex-direction: column; }
    .portfolio-grid { grid-template-columns: 1fr; }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.2, 0, 0, 1), transform 1s cubic-bezier(0.2, 0, 0, 1);
}

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