/* ============================================================
   layout.css — Grid, Flexbox, Responsive Scaffolding
   CityForge SEO — "The Observatory"
   ============================================================ */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-wide {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

/* ---- Section Spacing ---- */
.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.section-sm {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

/* ---- City Explorer Grid (3 → 2 → 1) ---- */
.city-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ---- Pricing Grid (4 → 2 → 1) ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

/* ---- Steps / How It Works Grid (3 → 1) ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* ---- Two-Column Sections Grid (2 → 1) ---- */
.sections-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

/* ---- Proof / Stats Grid (4 → 2 → 1) ---- */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

/* ---- Related Cities Grid (4 → 2) ---- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

/* ============================================================
   City Explorer Layout — Sidebar + Main
   ============================================================ */
.page-cities {
  display: flex;
  min-height: calc(100vh - 72px);
}

.cities-sidebar {
  width: 280px;
  min-width: 280px;
  position: sticky;
  top: 72px;
  height: calc(100vh - 72px);
  overflow-y: auto;
  padding: var(--space-lg);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.cities-main {
  flex: 1;
  min-width: 0;
  padding: var(--space-lg);
}

/* Sidebar sections */
.sidebar-section {
  margin-bottom: var(--space-xl);
}

.sidebar-section-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-md);
}

/* Cities top bar (result count, sort, view toggle) */
.cities-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.cities-toolbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.cities-toolbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cities-result-count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ============================================================
   City Detail Layout
   ============================================================ */
.page-city-detail {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* ============================================================
   Map Layout
   ============================================================ */
.page-map {
  min-height: calc(100vh - 72px);
  display: flex;
  flex-direction: column;
}

.map-container {
  position: relative;
  width: 100%;
  aspect-ratio: 960 / 600;
  background: var(--bg-surface);
  border: 1px solid rgba(14, 165, 233, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.map-legend {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.map-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.map-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

/* ============================================================
   Pricing Layout
   ============================================================ */
.page-pricing {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.pricing-hero {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.pricing-hero h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
}

.pricing-hero p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Flex Utilities
   ============================================================ */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

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

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

.flex-start {
  display: flex;
  align-items: flex-start;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* ============================================================
   Spacing Utilities
   ============================================================ */
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

/* ============================================================
   Text Alignment
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ============================================================
   Responsive — Tablet (max-width: 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .city-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sections-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* City explorer: sidebar collapses to horizontal filter bar */
  .page-cities {
    flex-direction: column;
  }

  .cities-sidebar {
    width: 100%;
    min-width: unset;
    position: relative;
    top: auto;
    height: auto;
    overflow-y: visible;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-md);
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .cities-sidebar .sidebar-section {
    margin-bottom: 0;
    flex-shrink: 0;
    min-width: 180px;
  }

  .section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }
}

/* ============================================================
   Responsive — Mobile (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
  .container,
  .container-narrow,
  .container-wide {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

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

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

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

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

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  /* City explorer sidebar: single row scroll on mobile */
  .cities-sidebar {
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-sm);
  }

  .cities-sidebar .sidebar-section {
    min-width: 150px;
  }

  .cities-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .cities-toolbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .map-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .map-legend {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .pricing-hero h1 {
    font-size: var(--text-3xl);
  }
}

/* ============================================================
   Visibility Utilities
   ============================================================ */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

@media (max-width: 768px) {
  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }
}