/* ================================================
   Map Calculator - Global Styles
   Domain: mapcalculator.net
   ================================================ */

/* CSS Variables */
:root {
  /* Colors */
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #dbeafe;
  --secondary-color: #64748b;
  --success-color: #22c55e;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  
  /* Neutrals */
  --bg-color: #f8fafc;
  --bg-white: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Layout */
  --header-height: 64px;
  --sidebar-width: 320px;
  --max-width: 1400px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-color);
  min-height: 100dvh;
  font-variant-numeric: normal;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--primary-hover);
}

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

button {
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

/* ================================================
   Layout Components
   ================================================ */

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.header__logo-icon {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.header__nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--primary-color);
  background: var(--primary-light);
}

.header__nav-link.active {
  color: var(--primary-color);
  background: var(--primary-light);
}

.header__nav-link svg {
  width: 18px;
  height: 18px;
}

/* Mobile Menu Toggle */
.header__menu-toggle {
  display: none;
  padding: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--text-primary);
}

/* Button wrapper (for mobile sidebar toggle) */
.header__button-wrapper {
  display: none;
}

.header__menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Panel Toggle (in header) */
.header__panel-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.header__panel-toggle svg {
  width: 22px;
  height: 22px;
}

.header__panel-toggle:hover {
  color: var(--primary-color);
}

@media (max-width: 768px) {
  .header {
    padding: 0 var(--spacing-md);
  }

  .header__logo {
    font-size: var(--font-size-lg);
  }

  .header__logo-icon {
    width: 24px;
    height: 24px;
  }

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

  .header__button-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  /* Collapse the nav into a dropdown menu. Toggled via `.show` by page JS. */
  .header__nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: calc(-1 * var(--spacing-lg));
    right: calc(-1 * var(--spacing-lg));
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-xs);
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    z-index: 1001;
  }

  .header__nav.show {
    display: flex;
  }

  .header__nav-link {
    width: 100%;
    justify-content: flex-start;
  }
}

/* Main Layout */
.main {
  padding-top: var(--header-height);
  min-height: 100dvh;
}

/* Map Page Layout */
.map-page {
  display: flex;
  height: calc(100dvh - var(--header-height));
}

.map-container {
  flex: 1;
  position: relative;
}

#map {
  width: 100%;
  height: 100%;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-white);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--font-family);
}

.sidebar__header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.sidebar__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.sidebar__subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.sidebar__content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.sidebar__footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  background: var(--bg-color);
}

/* ================================================
   UI Components
   ================================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-md);
  border: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: block;
}

.btn--primary {
  background: var(--primary-color);
  color: white;
}

.btn--primary:hover {
  background: var(--primary-hover);
  color: white;
}

.btn--secondary {
  background: var(--bg-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn--secondary:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.btn--danger {
  background: var(--danger-color);
  color: white;
}

.btn--danger:hover {
  background: #dc2626;
  color: white;
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn--ghost:hover {
  background: var(--bg-color);
  color: var(--text-primary);
}

.btn--sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
}

.btn--lg svg {
  width: 20px;
  height: 20px;
}

.btn--block {
  width: 100%;
}

.btn--icon {
  padding: var(--spacing-sm);
}

/* Button Group */
.btn-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.btn-group--three {
  gap: var(--spacing-sm);
}

.btn-group--three .btn {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-group--three .btn svg {
  width: 16px;
  height: 16px;
}

.btn-group--block {
  flex-direction: column;
}

/* Cards */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.card--shadow {
  box-shadow: var(--shadow-md);
  border: none;
}

.card__header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.card__body {
  padding: var(--spacing-lg);
}

.card__footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  background: var(--bg-color);
}

/* Result Display */
.result-box {
  background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  color: white;
  text-align: center;
}

.result-box__label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  margin-bottom: var(--spacing-xs);
}

.result-box__value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
}

.result-box__unit {
  font-size: var(--font-size-lg);
  font-weight: 400;
  opacity: 0.9;
}

/* Unit Selector */
.unit-selector {
  display: flex;
  background: var(--bg-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
  gap: var(--spacing-xs);
}

.unit-selector__btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.unit-selector__btn:hover {
  color: var(--text-primary);
}

.unit-selector__btn.active {
  background: var(--bg-white);
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

/* Points List */
.points-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.point-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-color);
  border-radius: var(--radius-md);
}

.point-item__marker {
  width: 28px;
  height: 28px;
  background: var(--primary-color);
  color: white;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.point-item__info {
  flex: 1;
  min-width: 0;
}

.point-item__coords {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', 'Source Code Pro', monospace;
}

.point-item__distance {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-top: 2px;
}

.point-item__actions {
  display: flex;
  gap: var(--spacing-xs);
}

/* Search Box */
.search-box {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.search-box__input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 40px;
  font-size: var(--font-size-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  transition: all var(--transition-fast);
}

.search-box__input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.search-box__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.search-box__results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  max-height: 300px;
  overflow-y: auto;
  z-index: 100;
  display: none;
}

.search-box__results.show {
  display: block;
}

.search-box__result {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.search-box__result:hover {
  background: var(--bg-color);
}

/* Instructions */
.instructions {
  background: var(--primary-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.instructions__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.instructions__list {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  padding-left: var(--spacing-lg);
}

.instructions__list li {
  margin-bottom: var(--spacing-xs);
}

/* FAQ (collapsible <details>) */
.faq {
  margin-top: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.faq-item {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.faq-item[open] {
  background: var(--bg-white);
  border-color: rgba(37, 99, 235, 0.35);
}

.faq-question {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
}

/* Hide default disclosure marker */
.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::marker {
  content: '';
}

.faq-question::after {
  content: '+';
  color: var(--primary-color);
  font-weight: 700;
  flex-shrink: 0;
}

.faq-item[open] .faq-question::after {
  content: '-';
}

.faq-question:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.faq-answer {
  margin: 0;
  padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--spacing-lg) 0;
}

/* ================================================
   Home Page
   ================================================ */

.home {
  padding: var(--spacing-2xl);
}

@media (max-width: 768px) {
  .home {
    padding: var(--spacing-lg);
  }

  .home__container {
    padding: 0;
  }

  .home__hero {
    padding: var(--spacing-lg) 0;
  }

  .home__hero .btn {
    display: inline-block;
    width: auto;
    min-width: 180px;
  }

  /* Tool Cards Grid - mobile */
  .tools-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
  }

  .tool-card {
    padding: var(--spacing-lg);
  }

  .tool-card__icon {
    width: 48px;
    height: 48px;
  }

  .tool-card__icon svg {
    width: 24px;
    height: 24px;
  }

  /* Features grid - mobile */
  .features__grid {
    grid-template-columns: 1fr;
  }

  /* Footer - mobile */
  .footer__container {
    flex-direction: column;
    text-align: center;
  }
}

.home__container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.home__hero {
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.home__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.home__title-highlight {
  color: var(--primary-color);
}

.home__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* Tool Cards Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.tool-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.tool-card__icon {
  width: 64px;
  height: 64px;
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
}

.tool-card__icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
}

.tool-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.tool-card__description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Features Section */
.features {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-2xl) 0;
  border-top: 1px solid var(--border-color);
}

.features__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.feature {
  display: flex;
  gap: var(--spacing-md);
}

.feature__icon {
  width: 40px;
  height: 40px;
  background: var(--success-color);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature__icon svg {
  width: 20px;
  height: 20px;
  color: white;
}

.feature__content h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.feature__content p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Footer */
.footer {
  background: var(--bg-white);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.footer__container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.footer__links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.footer__link:hover {
  color: var(--primary-color);
}

/* Sidebar footer links (in scrollable area) */
.sidebar-footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) 0;
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.sidebar-footer-link {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.sidebar-footer-link:hover {
  color: var(--primary-color);
}

/* ================================================
   Map Controls Overlay
   ================================================ */

.map-controls {
  position: absolute;
  /* Keep screenshot control at the top-right */
  top: var(--spacing-md);
  right: var(--spacing-md);
  left: auto;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* When the layer switcher is mounted inside `.map-controls`, let it participate
   in the vertical stack rather than using absolute positioning. */
.map-controls .layer-switcher {
  position: relative;
  top: auto;
  right: auto;
  order: 10;
}

/* When stacked with map-control buttons, match sizing exactly. */
.map-controls .layer-switcher__toggle {
  width: 40px;
  height: 40px;
}

.map-controls .layer-switcher__toggle svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 768px) {
  .map-controls {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }

  .map-controls .layer-switcher__toggle {
    width: 36px;
    height: 36px;
  }

  .map-controls .layer-switcher__toggle svg {
    width: 18px;
    height: 18px;
  }

}

.map-control-btn {
  width: 40px;
  height: 40px;
  background: var(--bg-white);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.map-control-btn:hover {
  background: var(--bg-color);
}

.map-control-btn svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 768px) {
  .map-control-btn {
    width: 36px;
    height: 36px;
  }

  .map-control-btn svg {
    width: 18px;
    height: 18px;
  }
}

/* Screenshot */
.map-control-btn--screenshot {
  color: var(--text-primary);
  order: 20;
}

/* Locate */
.map-control-btn--locate {
  color: var(--text-primary);
  order: 30;
}

/* Undo */
.map-control-btn--undo {
  color: var(--text-primary);
  order: 40;
}

.map-control-btn--undo:disabled {
  color: var(--text-muted);
  opacity: 0.5;
  cursor: not-allowed;
}

/* Clear */
.map-control-btn--clear {
  color: var(--text-primary);
  order: 50;
}

.map-control-btn--clear:disabled {
  color: var(--text-muted);
  opacity: 0.5;
  cursor: not-allowed;
}

/* Marker visibility */
.map-control-btn--marker-visibility {
  color: var(--text-primary);
  order: 60;
}

.map-control-btn--marker-visibility.map-control-btn--inactive {
  color: var(--text-muted);
}

.map-markers-hidden .custom-marker-container {
  opacity: 0;
  pointer-events: none;
}

.map-control-btn:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.screenshot-info {
  position: absolute;
  bottom: var(--spacing-md);
  left: var(--spacing-md);
  z-index: 500;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
  color: var(--text-primary);
  line-height: 1.4;
  max-width: 280px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: none;
}

.screenshot-info__line:first-child {
  font-weight: 600;
}

body.screenshot-mode .screenshot-info {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Hide UI chrome during capture */
body.screenshot-mode .map-controls,
body.screenshot-mode .layer-switcher,
body.screenshot-mode .coords-display,
body.screenshot-mode .result-display,
body.screenshot-mode .leaflet-control-container {
  display: none !important;
}

/* Hide anchor/handle markers on non-coordinates pages */
body.screenshot-mode.screenshot-hide-anchors .radius-handle-container {
  display: none !important;
}

/* Coordinates Display */
.coords-display {
  position: absolute;
  bottom: var(--spacing-md);
  left: var(--spacing-md);
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', 'Source Code Pro', monospace;
  z-index: 500;
}

/* Result Display - Floating result on map */
/* Only show on mobile (tablet and below) */
.result-display {
  display: none;
}

@media (max-width: 768px) {
  .result-display {
    display: block;
  }
}

.result-display {
  position: absolute;
  top: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  z-index: 500;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}

.result-display__value {
  color: var(--color-primary);
}

.result-display--hidden {
  display: none;
}

.result-display[style*="display: none"] + .result-display,
.result-display.result-display--hidden + .result-display {
  /* Keep layout stable */
}

.result-display:not(.result-display--hidden) {
  cursor: pointer;
}

/* ================================================
   Layer Switcher
   ================================================ */

.layer-switcher {
  position: absolute;
  /* Below the screenshot button for a vertical stack */
  top: calc(var(--spacing-md) + 40px + var(--spacing-sm) + 40px + var(--spacing-sm));
  right: var(--spacing-md);
  z-index: 500;
}

.layer-switcher__toggle {
  width: 40px;
  height: 40px;
  background: var(--bg-white);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.layer-switcher__toggle:hover {
  background: var(--bg-color);
}

.layer-switcher__toggle svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
}

 .layer-switcher__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 140px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.layer-switcher__menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

 .layer-switcher__menu::before {
  content: '';
  position: absolute;
  top: -6px;
  right: 8px;
  width: 12px;
  height: 12px;
  background: var(--bg-white);
  border-radius: 2px;
  transform: rotate(45deg);
}

.layer-switcher__title {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.layer-switcher__list {
  padding: var(--spacing-xs);
}

 .layer-switcher__btn {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  text-align: left;
}

.layer-switcher__btn:hover {
  background: var(--bg-color);
}

.layer-switcher__btn.active {
  background: var(--primary-light);
  border-left-color: var(--primary-color);
  color: var(--primary-color);
  font-weight: 500;
}

 @media (max-width: 768px) {
  .layer-switcher {
    right: var(--spacing-sm);
    /* Account for four stacked map-control buttons (screenshot + locate + undo + clear). */
    top: calc(var(--spacing-sm) + 36px + var(--spacing-sm) + 36px + var(--spacing-sm) + 36px + var(--spacing-sm) + 36px + var(--spacing-sm));
  }

  .layer-switcher__toggle {
    width: 36px;
    height: 36px;
  }

  .layer-switcher__toggle svg {
    width: 18px;
    height: 18px;
  }

  .layer-switcher__menu {
    width: 130px;
    right: -4px;
  }

   .layer-switcher__menu::before {
     right: 6px;
   }
 }

/* ================================================
   Mobile: Collapsible Sidebar (Map Pages)
   ================================================ */

.sidebar-overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.45);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: 1100;
}

.sidebar-close-btn {
  display: none;
}

@media (max-width: 768px) {
  /* On mobile, the sidebar overlays the map and is collapsed by default. */
  .sidebar {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    width: min(92vw, 360px);
    max-width: 100%;
    transform: translateX(105%);
    transition: transform var(--transition-normal);
    z-index: 1200;
    box-shadow: var(--shadow-xl);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  body.sidebar-open .sidebar-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Helpful close button inside the sidebar on mobile. */
  .sidebar-close-btn {
    display: inline-flex;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
  }

  .sidebar__header {
    position: relative;
    padding-right: calc(var(--spacing-lg) + 36px);
  }

  /* Hide long description on mobile to prevent content overlap */
  .sidebar__header > p:last-of-type {
    display: none;
  }

  .sidebar__subtitle {
    display: none;
  }

  /* Make entire sidebar scrollable on mobile */
  .sidebar {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
  }

  .sidebar__header {
    flex-shrink: 0;
  }

  .sidebar__footer {
    flex-shrink: 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
  }

  .sidebar__content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
  }

  body.sidebar-scroll-locked {
    overflow: hidden;
  }
}

/* Blog Article Styles */
.blog-article {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.blog-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.blog-intro {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary, #666);
  margin-bottom: 2.5rem;
}

.blog-article h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.blog-article h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.blog-article p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.blog-list {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.blog-list li {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.blog-list li strong {
  font-weight: 600;
}

.blog-article a {
  color: var(--color-primary, #3b82f6);
  text-decoration: none;
}

.blog-article a:hover {
  text-decoration: underline;
}

.blog-cta {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color, #e5e7eb);
}

/* Locate control button centering */
.leaflet-control-locate a {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Attribution text size */
.leaflet-control-attribution {
  font-size: 10px;
}