/* ==========================================================================
   Centric Sadang (센트릭 사당) - Cool Mediterranean Premium Theme CSS
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Reset & Variables
   -------------------------------------------------------------------------- */
:root {
  --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
  
  /* Color Palette */
  --bg-dark: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f6f8fa;
  --bg-input: #ffffff;
  
  --primary-gold: #2368b8;
  --primary-gold-light: #2b7bbb;
  --primary-gold-dark: #14213d;
  --gold-gradient: linear-gradient(135deg, #2368b8 0%, #2b7bbb 100%);
  
  --text-main: #14213d;
  --text-muted: #6b7280;
  --text-dim: #8b95a1;
  
  --border-color: #d8e2ec;
  --border-subtle: #e2e8f0;
  
  --shadow-sm: 0 8px 18px rgba(20, 33, 61, 0.05);
  --shadow-md: 0 18px 38px rgba(20, 33, 61, 0.09);
  --shadow-gold: 0 12px 28px rgba(20, 33, 61, 0.11);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: #ffffff;
  color: var(--text-main);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
  background: #ffffff;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

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

/* Helper Utilities */
.gold-text {
  background: linear-gradient(135deg, #14213d 0%, #14213d 64%, #2b7bbb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 700;
}

.logo .gold-text,
.hero-title-main .gold-text {
  background: linear-gradient(135deg, #14213d 0%, #14213d 78%, #2b7bbb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title .gold-text,
.unit-info .gold-text,
.contact-title .gold-text {
  background: none;
  color: var(--text-main);
  -webkit-text-fill-color: currentColor;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-gold);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  background: #f8fafc;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.title-bar {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #d8e2ec 0%, #2b7bbb 100%);
  margin: 18px auto;
  border-radius: 2px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 720px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-cta-gold {
  background: var(--gold-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-gold);
}

.btn-cta-gold:hover {
  box-shadow: 0 14px 30px rgba(20, 33, 61, 0.13);
}

.btn-cta-white {
  background: #ffffff;
  color: var(--primary-gold);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-cta-white:hover {
  background: #f8fafc;
}

.btn-primary {
  background: var(--primary-gold);
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   2. Header Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(18, 48, 74, 0.08);
  box-shadow: 0 8px 24px rgba(18, 48, 74, 0.05);
  transition: background var(--transition-normal), padding var(--transition-normal);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-sub {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 4px;
}

.nav-menu {
  display: flex;
  gap: 24px;
}

.nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

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

.nav-link.highlight-menu {
  color: var(--primary-gold);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: #f8fafc;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.phone-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--primary-gold);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.phone-btn:hover {
  background: var(--primary-gold);
  color: #ffffff;
}

.phone-icon {
  width: 16px;
  height: 16px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  flex: 0 0 28px;
  gap: 5px;
  width: 28px;
  height: 22px;
  background: none;
}

.mobile-menu-btn span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

/* Mobile Overlay */
.mobile-overlay {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(15px);
  z-index: 999;
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px 24px;
}

.mobile-overlay.active {
  right: 0;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
  margin-bottom: 40px;
}

.mobile-link {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.mobile-link:hover {
  color: var(--primary-gold);
}

.mobile-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #14213d;
  color: #ffffff;
  padding: 16px;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   3. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
  padding-bottom: 70px;
  background: #14213d;
}

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

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.88) contrast(1.04) saturate(0.98);
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(180deg, rgba(7, 12, 22, 0.48) 0%, rgba(7, 12, 22, 0.56) 48%, rgba(7, 12, 22, 0.68) 100%),
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.08) 0%, rgba(7, 12, 22, 0) 42%);
}

.hero-container {
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
  z-index: 10;
  position: relative;
}

/* Featured Hero Render Image Card (Image 2 Reference) */
.hero-render-card {
  width: 100%;
  max-width: 620px;
  margin: 0 auto 28px auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 18px 42px rgba(20, 33, 61, 0.12);
  border: 1px solid #d8e2ec;
  background: #ffffff;
}

.hero-render-img,
.hero-render-video {
  width: 100%;
  aspect-ratio: 30 / 17;
  display: block;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.hero-render-video {
  background: #f8fafc;
  filter: brightness(0.9) saturate(0.9) contrast(0.98);
}

.hero-render-card:hover .hero-render-img,
.hero-render-card:hover .hero-render-video {
  transform: scale(1.02);
}

.hero-title-main {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 12px;
  color: #ffffff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.28);
}

.hero-title-main .gold-text {
  background: none;
  color: #ffffff;
  -webkit-text-fill-color: currentColor;
}

.hero-slogan-sub {
  font-size: 1.35rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
  margin-bottom: 32px;
  line-height: 1.6;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.25);
}

.hero-slogan-sub .gold-serif,
.hero-slogan-sub .font-serif {
  font-size: 1.45rem;
  background: none;
  color: #dbeafe;
  -webkit-text-fill-color: currentColor;
  margin-top: 4px;
}

/* Questions Card (Image 1 Reference) */
.hero-questions-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid #d8e2ec;
  border-radius: 22px;
  padding: 32px 24px;
  margin: 0 auto 24px auto;
  width: 100%;
  max-width: 580px;
  box-shadow: 0 18px 38px rgba(20, 33, 61, 0.1);
  backdrop-filter: blur(16px);
  text-align: center;
}

.card-header {
  text-align: center;
  margin-bottom: 22px;
}

.phone-icon-circle {
  width: 52px;
  height: 52px;
  border: 1.5px solid #d8e2ec;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--primary-gold-dark);
  background: #f8fafc;
}

.overlay-phone-svg {
  width: 24px;
  height: 24px;
}

.card-header h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.card-header p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.card-questions-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-question-action-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  padding: 16px 20px;
  border-radius: 12px;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  text-align: left;
}

.hero-question-action-btn:hover {
  background: #f8fafc;
  border-color: #d8e2ec;
  color: var(--primary-gold-dark);
  transform: translateX(4px);
}

.hero-question-action-btn .bullet {
  color: var(--primary-gold);
  font-weight: 800;
  font-size: 1.1rem;
}

/* Main Stacked CTAs (Image 1 Reference) */
.hero-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 580px;
  margin: 0 auto;
}

.btn-cta-gold-stacked {
  width: 100%;
  padding: 18px 24px;
  background: linear-gradient(135deg, #2368b8 0%, #2b7bbb 100%);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 800;
  border-radius: 14px;
  box-shadow: 0 12px 26px rgba(20, 33, 61, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition-fast);
}

.btn-cta-gold-stacked:hover {
  background: linear-gradient(135deg, #1d5da5 0%, #236fa8 100%);
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(20, 33, 61, 0.16);
}

.btn-cta-white-stacked {
  width: 100%;
  padding: 18px 24px;
  background: #ffffff;
  color: var(--primary-gold);
  font-size: 1.15rem;
  font-weight: 800;
  border-radius: 14px;
  border: 1px solid #d8e2ec;
  box-shadow: 0 10px 22px rgba(18, 48, 74, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition-fast);
}

.btn-cta-white-stacked:hover {
  background: #f8fafc;
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   4. Overview Section
   -------------------------------------------------------------------------- */
.overview-section {
  background: #ffffff;
  position: relative;
}

.overview-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
}

.overview-info {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.overview-table {
  width: 100%;
  border-collapse: collapse;
}

.overview-table th, .overview-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
  font-size: 0.95rem;
}

.overview-table tr:last-child th,
.overview-table tr:last-child td {
  border-bottom: none;
}

.overview-table th {
  width: 26%;
  color: var(--primary-gold);
  font-weight: 700;
  background: #f8fafc;
}

.overview-table td {
  color: var(--text-main);
}

.overview-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-gold);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-num .unit {
  font-size: 1.2rem;
  margin-left: 4px;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   5. Premium Location Section
   -------------------------------------------------------------------------- */
.premium-section {
  background: #f6f8fa;
  position: relative;
}

.premium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.premium-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all var(--transition-fast);
}

.premium-card:hover {
  border-color: #cbd5e1;
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: #ffffff;
}

.card-icon-container {
  width: 52px;
  height: 52px;
  background: #f8fafc;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--primary-gold);
}

.card-icon {
  width: 28px;
  height: 28px;
}

.premium-card .card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}

.premium-card .card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Map Gallery */
.map-gallery-section {
  grid-column: 1 / -1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-top: 20px;
}

.gallery-header {
  margin-bottom: 24px;
}

.gallery-header h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.gallery-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.map-gallery-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.map-tab-trigger {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.map-tab-trigger.active, .map-tab-trigger:hover {
  background: #14213d;
  color: #ffffff;
  border-color: #14213d;
}

.map-gallery-content {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.map-content {
  display: none;
}

.map-content.active {
  display: block;
}

.gallery-map-img {
  width: 100%;
  max-height: 540px;
  object-fit: cover;
  border-radius: var(--radius-md);

}

/* --------------------------------------------------------------------------
   6. Unit Types Section
   -------------------------------------------------------------------------- */
.units-section {
  background: #ffffff;
}

.tabs-list {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-trigger {
  padding: 14px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.tab-trigger.active, .tab-trigger:hover {
  background: #14213d;
  color: #ffffff;
  border-color: transparent;
  box-shadow: var(--shadow-md);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.unit-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  align-items: center;
}

.unit-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #ffffff;
  padding: 16px;
  text-align: center;
  cursor: pointer;
}

.visual-loaded-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-normal);
}

.unit-visual:hover .visual-loaded-img {
  transform: scale(1.02);
}

.unit-info h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.unit-intro {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.spec-list {
  list-style: none;
  margin-bottom: 24px;
  background: #f8fafc;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.spec-list li {
  padding: 6px 0;
  color: var(--text-main);
  font-size: 0.95rem;
}

.spec-list strong {
  color: var(--primary-gold);
  width: 110px;
  display: inline-block;
}

.unit-features h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 8px;
}

.unit-features p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   7. Development & Vision Section
   -------------------------------------------------------------------------- */
.development-section {
  background: #f6f8fa;
}

.dev-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.dev-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  position: relative;
  overflow: hidden;
}

.dev-badge {
  display: inline-block;
  background: #14213d;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.dev-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.dev-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.dev-banner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.dev-banner-info h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary-gold);
  margin-bottom: 10px;
}

.dev-banner-info p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. Infrastructure & Parking Section
   -------------------------------------------------------------------------- */
.infra-section {
  background: #ffffff;
}

.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.parking-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
}

.parking-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 8px;
}

.parking-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

/* --------------------------------------------------------------------------
   9. Special Strategies & Community Section
   -------------------------------------------------------------------------- */
.strategy-section {
  background: #f6f8fa;
}

.strategy-tabs-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 50px;
}

.strategy-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.strategy-block h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 24px;
  border-left: 4px solid var(--primary-gold);
  padding-left: 12px;
}

.strategy-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.strategy-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.str-code {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--primary-gold);
  background: #f8fafc;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  min-width: 90px;
  text-align: center;
}

.str-icon {
  font-size: 1.4rem;
}

.strategy-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.strategy-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   10. Contact Form Section
   -------------------------------------------------------------------------- */
.contact-section {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  position: relative;
  overflow: hidden;
}

.contact-bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(20, 33, 61, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: 1;
  pointer-events: none;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
  position: relative;
  z-index: 2;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-title {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact-tel-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-gold);
}

.contact-tel-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.tel-number {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary-gold);
  letter-spacing: 1px;
}

.contact-form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.interest-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-group .required {
  color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-gold);
  box-shadow: 0 0 0 3px rgba(35, 104, 184, 0.09);
}

.funnel-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.funnel-chip {
  cursor: pointer;
}

.funnel-chip input {
  display: none;
}

.funnel-chip span {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.funnel-chip input:checked + span {
  background: #eef6ff;
  border-color: var(--primary-gold);
  color: var(--primary-gold-dark);
}

.privacy-group {
  margin-top: 10px;
}

.privacy-text-box {
  background: #f8fafc;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
  max-height: 90px;
  overflow-y: auto;
  margin-bottom: 10px;
}

.privacy-agree {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

.privacy-agree input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-gold);
}

.btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--gold-gradient);
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  margin-top: 10px;
  box-shadow: var(--shadow-gold);
}

.btn-submit:hover {
  transform: translateY(-2px);
}

.btn-submit:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

/* --------------------------------------------------------------------------
   11. Legal Footer
   -------------------------------------------------------------------------- */
.footer {
  background: #f8fafc;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 24px 100px 24px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
}

.footer-brand .brand-sub {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

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

.footer-links a:hover {
  color: var(--primary-gold);
}

.footer-divider {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin-bottom: 30px;
}

.footer-bottom {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.footer-info strong {
  color: var(--text-muted);
}

.footer-info a {
  color: var(--primary-gold);
}

.disclaimer {
  margin-top: 14px;
  font-size: 0.8rem;
}

.footer-copy {
  margin-top: 20px;
  text-align: center;
  font-size: 0.8rem;
}

/* --------------------------------------------------------------------------
   12. Mobile Sticky Quick Bar & Modal & Toast
   -------------------------------------------------------------------------- */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 900;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-color);
  padding: 10px 16px;
  box-shadow: 0 -8px 22px rgba(18, 48, 74, 0.08);
}

.sticky-call {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
}

.sticky-reg {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2368b8 0%, #2b7bbb 100%);
  color: #ffffff;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.9rem;
}

.top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 46px;
  height: 46px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 800;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.top-btn:hover {
  background: #14213d;
  color: #ffffff;
}

.top-icon {
  width: 22px;
  height: 22px;
}

/* Toast Container */
.toast-container {
  position: fixed;
  top: 90px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 14px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.95rem;
  font-weight: 600;
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Image Modal */
.image-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(18, 48, 74, 0.88);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.image-modal.active {
  display: flex;
}

.image-modal-content {
  max-width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.image-modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2.5rem;
  color: #ffffff;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   13. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .overview-grid {
    grid-template-columns: 1fr;
  }
  
  .unit-layout {
    grid-template-columns: 1fr;
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
  }
  
  .strategy-tabs-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .section-container {
    padding: 46px 18px;
  }

  .section-header {
    margin-bottom: 34px;
  }

  .section-badge {
    font-size: 0.72rem;
    letter-spacing: 1.2px;
    padding: 5px 12px;
  }

  .section-title {
    font-size: 1.72rem;
    line-height: 1.28;
  }

  .section-desc {
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .header-container {
    padding: 14px 20px;
    gap: 14px;
  }

  .logo {
    min-width: 0;
  }

  .logo-sub {
    display: none;
  }

  .phone-btn {
    display: none;
  }

  .mobile-menu-btn {
    position: relative;
  }

  .mobile-menu-btn span {
    position: absolute;
    right: 0;
  }

  .mobile-menu-btn span:nth-child(1) {
    top: 2px;
  }

  .mobile-menu-btn span:nth-child(2) {
    top: 10px;
  }

  .mobile-menu-btn span:nth-child(3) {
    top: 18px;
  }

  .hero-section {
    padding-top: 88px;
    padding-bottom: 56px;
  }
  
  .hero-title-main {
    font-size: 2.08rem;
    margin-bottom: 8px;
  }
  
  .hero-slogan-sub {
    font-size: 1rem;
    margin-bottom: 26px;
  }

  .hero-slogan-sub .gold-serif,
  .hero-slogan-sub .font-serif {
    font-size: 1.08rem;
  }

  .hero-questions-card {
    padding: 28px 20px;
    border-radius: 18px;
  }

  .card-header h3 {
    font-size: 1.32rem;
  }

  .card-header p {
    font-size: 0.9rem;
  }

  .hero-question-action-btn {
    font-size: 0.96rem;
    padding: 14px 16px;
  }

  .btn-cta-gold-stacked,
  .btn-cta-white-stacked {
    font-size: 1rem;
    padding: 16px 18px;
  }

  .overview-info,
  .unit-layout,
  .map-gallery-section,
  .strategy-block,
  .contact-form-panel {
    padding: 22px 18px;
  }

  .overview-table th,
  .overview-table td {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-size: 0.9rem;
  }

  .overview-table th {
    border-bottom: none;
    padding-bottom: 4px;
  }

  .overview-table td {
    padding-top: 4px;
  }

  .stat-num {
    font-size: 2rem;
  }

  .premium-grid,
  .infra-grid,
  .dev-grid {
    grid-template-columns: 1fr;
  }

  .premium-card,
  .dev-card,
  .parking-card {
    padding: 22px 20px;
  }

  .premium-card .card-title,
  .dev-card h3 {
    font-size: 1.12rem;
  }

  .unit-info h3 {
    font-size: 1.38rem;
  }

  .unit-intro,
  .unit-features p,
  .premium-card .card-desc,
  .dev-card p,
  .parking-card p {
    font-size: 0.9rem;
  }

  .strategy-block h3 {
    font-size: 1.18rem;
  }

  .strategy-item h4 {
    font-size: 0.98rem;
  }

  .strategy-item p {
    font-size: 0.86rem;
  }

  .contact-title {
    font-size: 2rem;
  }

  .contact-desc {
    font-size: 0.95rem;
  }

  .tel-number {
    font-size: 1.74rem;
  }

  .form-group label,
  .form-group input,
  .form-group select,
  .form-group textarea {
    font-size: 0.9rem;
  }

  .btn-submit {
    font-size: 1rem;
  }
  
  .mobile-sticky-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 10px;
  }

  .sticky-call,
  .sticky-reg {
    min-width: 0;
    white-space: nowrap;
    font-size: 0.84rem;
    overflow: hidden;
  }

  .sticky-call span {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .landscape-grid {
    grid-template-columns: 1fr !important;
  }

  .dev-banner-card {
    flex-direction: column;
  }
  
  .form-row.grid-2 {
    grid-template-columns: 1fr;
  }
}