:root {
  /* Colors */
  --bg-primary: #0A0F1D;
  /* Dark Navy Core */
  --bg-secondary: #12192B;
  /* Dark Navy Elevated */
  --bg-tertiary: rgba(18, 25, 43, 0.7);
  /* Glassmorphism Base */

  --accent-gold: #D4AF37;
  /* Premium Gold */
  --accent-gold-hover: #F3CA4B;
  --accent-gold-muted: rgba(212, 175, 55, 0.15);

  --text-primary: #FFFFFF;
  --text-secondary: #A0ABC0;
  --text-tertiary: #6E7B94;

  --border-light: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(212, 175, 55, 0.3);

  /* Typography */
  --font-main: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', sans-serif;

  /* Layout */
  --container-max: 1280px;
  --nav-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.text-gold {
  color: var(--accent-gold);
}

.text-gradient {
  background: linear-gradient(135deg, #FFFFFF 0%, #A0ABC0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #F3CA4B 0%, #D4AF37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
}

/* Layout Utilities */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
}

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 15, 29, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.brand {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-primary);
  opacity: 0.8;
  position: relative;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--accent-gold);
}

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

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #D4AF37 0%, #BCA762 100%);
  color: var(--bg-primary);
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}

.btn-outline:hover {
  background: var(--accent-gold-muted);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at 70% 30%, var(--bg-secondary) 0%, var(--bg-primary) 60%);
}

/* A glowing orb effect */
.hero-glow {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, rgba(10, 15, 29, 0) 70%);
  filter: blur(60px);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
}

.hero-subtitle {
  display: inline-block;
  color: var(--accent-gold);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.hero .lead {
  margin: 1.5rem 0 3rem;
  max-width: 600px;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 3rem 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(212, 175, 55, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-gold);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: rgba(212, 175, 55, 0.1);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-desc {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Statistics Section */
.stats {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 1.1rem;
}

/* CTA & Footer */
.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100vw;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.05) 0%, transparent 60%);
  z-index: -1;
}

.footer {
  background: #050810;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-light);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .brand {
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links h4 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.footer-links ul li {
  margin-bottom: 0.75rem;
}

.footer-links ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links ul li a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    /* Mobile menu needed for full view, hiding for simplicity in base layout */
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Contact Form Styles */
.contact-wrapper {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 3rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-gold);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 2px var(--accent-gold-muted);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23D4AF37' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.2rem;
  padding-right: 3rem;
}

.form-group select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-footer {
  margin-top: 2rem;
  text-align: center;
}

.privacy-note {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}

.w-100 {
  width: 100%;
}

@media (max-width: 768px) {
  .contact-wrapper {
    padding: 2rem 1.5rem;
  }

  .contact-form .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }
}