/* Container & Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-sm {
  padding: 60px 0;
}

/* Grid Background Texture (Pure Background Layer) */
.grid-bg {
  position: relative;
  overflow: hidden;
}

.grid-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 95%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 95%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

.grid-bg > .container {
  position: relative;
  z-index: 1;
}

/* Hero Section */
.hero-wrapper {
  padding-top: 40px;
  padding-bottom: 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.hero-title {
  margin-top: 8px;
}

.hero-subtitle {
  max-width: 540px;
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Architectural Logo & Visual Showcase */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.arch-frame {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.arch-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
}

.arch-emblem {
  width: 140px;
  height: 140px;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Feature 3-Column Matrix */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.matrix-card {
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

.matrix-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.matrix-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

/* Split Feature Rows */
.split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin: 80px 0;
}

.split-row.reverse {
  direction: rtl;
}

.split-row.reverse > * {
  direction: ltr;
}

.split-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.split-visual {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--card-shadow);
}

/* App Download Section */
.app-download-box {
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-surface-card) 100%);
  border: 1px solid var(--border-focus);
  border-radius: 20px;
  padding: 64px 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.store-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.store-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: var(--transition);
}

.store-badge-btn:hover {
  border-color: var(--border-focus);
  background-color: var(--bg-surface-hover);
  transform: translateY(-1px);
}

.store-badge-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.store-badge-texts {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.store-badge-sub {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.store-badge-main {
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

.qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  width: fit-content;
  margin: 0 auto;
}

.qr-img {
  width: 160px;
  height: 160px;
  background-color: #FFFFFF;
  padding: 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

/* Legal Documents Reading Layout */
.legal-layout {
  max-width: 800px;
  margin: 40px auto 100px auto;
  padding: 0 24px;
}

.legal-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-body h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px 0;
}

.legal-body h3 {
  font-size: 1.125rem;
  margin: 24px 0 12px 0;
}

.legal-body p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
  font-size: 1rem;
}

.legal-body ul, .legal-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.legal-body li {
  margin-bottom: 8px;
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .arch-frame {
    max-width: 320px;
  }
  .matrix-grid {
    grid-template-columns: 1fr;
  }
  .split-row, .split-row.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    direction: ltr;
  }
  .app-download-box {
    grid-template-columns: 1fr;
    padding: 40px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .section {
    padding: 60px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}