:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;

  /* Semantic Color Tokens */
  --color-primary: #007bff;
  --color-primary-hover: #0056b3;
  --color-secondary: #6c757d;
  --color-success: #28a745;
  --color-danger: #dc3545;
  --color-warning: #ffc107;
  --color-info: #17a2b8;

  /* Light Theme Defaults */
  --color-background: var(--color-gray-100);
  --color-text: var(--color-gray-800);
  --color-text-light: var(--color-gray-600);
  --color-border: var(--color-gray-300);
  --color-surface: var(--color-white);
  --color-surface-2: var(--color-gray-100);
  --color-shadow: rgba(0, 0, 0, 0.1);

  /* Accessible status TEXT tokens — meet WCAG AA 4.5:1 on light surfaces.
     The vivid --color-success/warning/danger/info above stay for dots/swatches/borders
     (graphical objects, 3:1). These darker variants are used wherever status is rendered as text. */
  --color-success-text: #157347;
  --color-warning-text: #8a6500;
  --color-danger-text: #b02a37;
  --color-info-text: #0c6c7a;
  --color-muted-strong: var(--color-gray-700); /* readable muted text (e.g. inactive filter chips) */

  /* Focus ring — >=3:1 against adjacent colors in this theme. */
  --color-focus: #0a58ca;

  /* Sizing & Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-md: 1rem; /* 16px */
  --font-size-lg: 1.25rem; /* 20px */
  --font-size-xl: 1.5rem; /* 24px */
  --font-weight-normal: 400;
  --font-weight-bold: 700;

  /* Borders & Shadows */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --box-shadow-sm: 0 1px 3px var(--color-shadow);
  --box-shadow-md: 0 4px 6px var(--color-shadow);
  --box-shadow-lg: 0 10px 15px var(--color-shadow);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
}

/* Dark Theme Variables */
body.dark-mode {
  --color-primary: #4dabf7;
  --color-primary-hover: #74c0fc;
  --color-secondary: #868e96;
  --color-success: #40c057;
  --color-danger: #fa5252;
  --color-warning: #fcc419;
  --color-info: #3bc9db;

  --color-background: #1a1b1e;
  --color-text: #e9ecef;
  --color-text-light: #adb5bd;
  --color-border: #495057;
  --color-surface: #2c2e33;
  --color-surface-2: #25262b;
  --color-shadow: rgba(0, 0, 0, 0.5);

  /* On the dark surface (#2c2e33) the bright variants already clear AA, so the
     status TEXT tokens reuse them. */
  --color-success-text: #51cf66;
  --color-warning-text: #fcc419;
  --color-danger-text: #ff6b6b;
  --color-info-text: #66d9e8;
  --color-muted-strong: var(--color-text-light);

  --color-focus: #74c0fc;
}

/* Global Styles & Resets */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: var(--font-family-sans);
  font-size: var(--font-size-md);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden; /* Prevent body scroll */
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  inset: 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}
body.dark-mode .loading-screen {
    background-color: #1a1b1e;
}

.loading-content { text-align: center; }
.loading-icon { font-size: 3rem; animation: bounce 2s infinite; }
.loading-spinner {
  width: 40px; height: 40px; border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white); border-radius: 50%;
  animation: spin 1s linear infinite; margin: var(--spacing-lg) auto 0;
}
body.dark-mode .loading-spinner { border-top-color: var(--color-primary); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateY(0); } 40% { transform: translateY(-30px); } 60% { transform: translateY(-15px); } }

/* Main App Layout */
.app { display: flex; flex-direction: column; height: 100vh; }
.sidebar { display: none; } /* Hide sidebar on mobile by default */
.header { background-color: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: var(--spacing-sm) var(--spacing-md); box-shadow: var(--box-shadow-sm); z-index: 100; }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.header-title { margin: 0; font-size: var(--font-size-lg); font-weight: var(--font-weight-bold); color: var(--color-primary); }
.header-controls { display: flex; gap: var(--spacing-sm); }
.nav-tabs { display: flex; background-color: var(--color-surface); border-bottom: 1px solid var(--color-border); }
.nav-tab { flex: 1; min-height: 48px; padding: var(--spacing-sm) var(--spacing-md); text-align: center; cursor: pointer; border: none; background: none; font-size: var(--font-size-md); color: var(--color-muted-strong); border-bottom: 3px solid transparent; transition: all var(--transition-fast); }
body.dark-mode .nav-tab { color: var(--color-text-light); }
.nav-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: var(--font-weight-bold); }
.search-container-mobile { padding: var(--spacing-md); background: var(--color-surface); border-bottom: 1px solid var(--color-border); display: none; }
.filter-controls-container { padding-top: var(--spacing-md); }
.filter-controls { display: flex; gap: var(--spacing-sm); justify-content: center; flex-wrap: wrap; }
.main-content { flex: 1; display: flex; flex-direction: column; position: relative; overflow: hidden; }
.view { display: none; }
.view.active { display: flex; flex-direction: column; flex-grow: 1; }

/* Map View */
#map-view { position: relative; }
.map-container { flex-grow: 1; width: 100%; background-color: #aaccdd; }
body.dark-mode .map-container { background-color: #14202b; }
.map-controls { position: absolute; bottom: var(--spacing-lg); right: var(--spacing-md); z-index: 401; }
.map-control-btn { border-radius: 50%; width: 50px; height: 50px; font-size: 1.5rem; box-shadow: var(--box-shadow-md); }

/* List View */
#list-view { overflow-y: auto; }
.beach-list { padding: var(--spacing-sm); }
.beach-item { background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius-md); padding: var(--spacing-md); margin-bottom: var(--spacing-sm); cursor: pointer; transition: box-shadow var(--transition-fast), border-color var(--transition-fast); }
.beach-item:hover { box-shadow: var(--box-shadow-md); border-color: var(--color-primary); }
.beach-item-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: var(--spacing-sm); }
.beach-name { margin: 0; font-size: var(--font-size-lg); }
.beach-name-bg { color: var(--color-text-light); font-size: var(--font-size-sm); }
.beach-info { display: flex; justify-content: space-between; align-items: center; font-size: var(--font-size-sm); }
.facility-icon { font-size: 1.2rem; margin-right: var(--spacing-xs); }
.beach-distance { font-weight: var(--font-weight-bold); color: var(--color-primary); }
.no-results p { text-align: center; color: var(--color-text-light); padding: var(--spacing-xl); }


/* Modals */
.modal { position: fixed; inset: 0; display: flex; justify-content: center; align-items: center; z-index: 500; }
.modal-backdrop { position: absolute; inset: 0; background-color: rgba(0, 0, 0, 0.6); }
body.dark-mode .modal-backdrop { background-color: rgba(0, 0, 0, 0.8); }
.modal-content { background-color: var(--color-surface); border-radius: var(--border-radius-lg); box-shadow: var(--box-shadow-lg); width: 90%; max-width: 500px; max-height: 90vh; display: flex; flex-direction: column; z-index: 1; animation: slideInUp 0.3s; }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: var(--spacing-md); border-bottom: 1px solid var(--color-border); }
.modal-title { margin: 0; font-size: var(--font-size-lg); }
.modal-close { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: none; border: none; font-size: 1.75rem; line-height: 1; cursor: pointer; color: var(--color-text-light); border-radius: var(--border-radius-sm); }
.modal-close:hover { color: var(--color-text); background: var(--color-surface-2); }
.modal-body { padding: var(--spacing-md); overflow-y: auto; }
.modal-footer { padding: var(--spacing-md); border-top: 1px solid var(--color-border); text-align: right; }
@keyframes slideInUp { from { transform: translateY(50px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Beach Detail Modal specific styles */
.flag-indicator { font-weight: var(--font-weight-bold); font-size: 1.1rem; text-align: center; margin-bottom: var(--spacing-md); }
.flag-indicator.green { color: var(--color-success-text); }
.flag-indicator.yellow { color: var(--color-warning-text); }
.flag-indicator.red { color: var(--color-danger-text); }
.flag-indicator.unknown { color: var(--color-text-light); }

.conditions-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: var(--spacing-md); margin-bottom: var(--spacing-md); text-align: center; }
.condition-label { font-size: var(--font-size-sm); color: var(--color-text-light); }
.condition-value { font-weight: var(--font-weight-bold); font-size: 1.1rem; }
.safety-message { margin: var(--spacing-md) 0; padding: var(--spacing-sm); background: var(--color-gray-100); border-radius: var(--border-radius-sm); }
body.dark-mode .safety-message { background-color: var(--color-background); }
.facilities-list { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); margin-top: var(--spacing-sm); }
.facility-tag { background-color: var(--color-gray-200); padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--border-radius-sm); font-size: var(--font-size-sm); }
body.dark-mode .facility-tag { background-color: var(--color-gray-800); }
.last-updated { text-align: center; font-size: var(--font-size-sm); color: var(--color-text-light); margin-top: var(--spacing-md); }
.cleanliness-section { margin-top: var(--spacing-md); }
.cleanliness-status { font-weight: bold; text-align: center; margin-bottom: var(--spacing-sm); }
.cleanliness-status.clear { color: var(--color-info-text); }
.cleanliness-status.moderate { color: var(--color-warning-text); }
.cleanliness-status.high { color: var(--color-danger-text); }
.cleanliness-report-text { font-size: var(--font-size-sm); color: var(--color-text-light); }

/* Settings Modal specific styles */
.settings-section { margin-bottom: var(--spacing-lg); }
.settings-section h3 { margin-top: 0; border-bottom: 1px solid var(--color-border); padding-bottom: var(--spacing-sm); }
.legend-item { display: flex; align-items: center; margin-bottom: var(--spacing-sm); }
.flag-icon { font-size: 1.2rem; margin-right: var(--spacing-sm); }
#safety-tips-list { padding-left: var(--spacing-lg); }

/* Form Controls & Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--spacing-xs); min-height: 44px; font-weight: var(--font-weight-bold); text-align: center; vertical-align: middle; cursor: pointer; user-select: none; background-color: transparent; border: 1px solid transparent; padding: 0.375rem 0.75rem; font-size: var(--font-size-md); border-radius: var(--border-radius-sm); transition: all var(--transition-fast); }
.btn--primary { color: var(--color-white); background-color: var(--color-primary); border-color: var(--color-primary); }
.btn--primary:hover { background-color: var(--color-primary-hover); border-color: var(--color-primary-hover); }
body.dark-mode .btn--primary { color: var(--color-black); }

.btn--secondary { color: var(--color-text); background-color: var(--color-gray-300); border-color: var(--color-gray-300); }
body.dark-mode .btn--secondary { color: var(--color-text); background-color: var(--color-gray-700); border-color: var(--color-gray-700); }

.btn--outline { color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { color: var(--color-white); background-color: var(--color-primary); }
body.dark-mode .btn--outline:hover { color: var(--color-black); }


/* Header icon/text buttons: still tappable (>=44px) but not as tall as primary buttons. */
.btn--sm { min-height: 40px; min-width: 40px; padding: 0.25rem 0.6rem; font-size: var(--font-size-sm); }
.filter-btn { min-height: 40px; background-color: var(--color-gray-200); color: var(--color-muted-strong); }
body.dark-mode .filter-btn { background-color: var(--color-gray-800); color: var(--color-text-light); }
.filter-btn.active { background-color: var(--color-primary); color: var(--color-white); box-shadow: var(--box-shadow-sm); }
body.dark-mode .filter-btn.active { color: var(--color-black); }

.form-control { display: block; width: 100%; padding: 0.5rem 0.75rem; font-size: var(--font-size-md); line-height: 1.5; color: var(--color-text); background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius-sm); transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.form-control:focus { border-color: var(--color-primary); outline: 0; box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25); }
body.dark-mode .form-control:focus { box-shadow: 0 0 0 0.2rem rgba(77, 171, 247, 0.25); }


/* Custom Map Markers */
.custom-marker-icon { position: relative; display: flex; align-items: center; justify-content: center; }
.flag-emoji { font-size: 24px; text-shadow: 0px 0px 3px rgba(0,0,0,0.5); }
.cleanliness-dot { position: absolute; bottom: 5px; right: 0px; width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid white; box-shadow: 0 0 3px rgba(0,0,0,0.5); }
.cleanliness-dot.clear { background-color: var(--color-info); }
.cleanliness-dot.moderate { background-color: var(--color-warning); }
.cleanliness-dot.high { background-color: var(--color-danger); }

.user-location-marker { font-size: 20px; }

/* Offline Indicator */
.offline-indicator { position: fixed; bottom: 0; left: 0; right: 0; background-color: var(--color-warning); color: var(--color-gray-800); text-align: center; padding: var(--spacing-sm); z-index: 1000; font-size: var(--font-size-sm); }

/* Theme Toggle Switch */
.theme-toggle-wrapper { display: flex; justify-content: space-between; align-items: center; }
.toggle-switch { position: relative; display: inline-block; width: 50px; height: 26px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--color-gray-400); transition: .4s; border-radius: 26px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--color-primary); }
input:focus + .slider { box-shadow: 0 0 1px var(--color-primary); }
input:checked + .slider:before { transform: translateX(24px); }


/* Responsiveness: Tablet and Desktop */
@media (min-width: 768px) {
  .app { flex-direction: row; height: 100vh; max-width: none; margin: 0; }
  .header, .nav-tabs, .search-container-mobile { display: none; }
  .sidebar { 
    display: flex; /* Show sidebar on desktop */
    width: 350px; 
    min-width: 300px; 
    max-width: 400px; 
    height: 100vh; 
    flex-direction: column; 
    border-right: 1px solid var(--color-border); 
    background: var(--color-surface); 
    z-index: 10; 
  }
  .sidebar-header { padding: var(--spacing-md); border-bottom: 1px solid var(--color-border); }
  .sidebar-search { padding: var(--spacing-md); border-bottom: 1px solid var(--color-border); }
  .beach-list-container { flex-grow: 1; overflow-y: auto; }
  .sidebar-footer { padding: var(--spacing-md); border-top: 1px solid var(--color-border); text-align: center; }
  .main-content { flex-grow: 1; height: 100vh; }
  #map-view, #list-view { height: 100%; }
  #map-view { display: flex; }
  #list-view { display: none; }
}

/* ==========================================================================
   Backend data overhaul: honest rendering for unknown / unavailable data
   (Appended; existing rules above are unchanged.)
   ========================================================================== */

/* Unknown safety flag: neutral/grey, NOT green. Mirrors .flag-indicator.green/yellow/red */
.flag-indicator.unknown { color: var(--color-text-light); }

/* Grey map marker variant for an unknown flag.
   Mutes the flag emoji so an unknown state never reads as a coloured (e.g. green) flag. */
.custom-marker-icon.unknown .flag-emoji {
  filter: grayscale(1) opacity(0.65);
}

/* Cleanliness "unavailable": neutral grey in both light and dark mode.
   Mirrors .cleanliness-dot.clear/moderate/high and .cleanliness-status.clear/moderate/high */
.cleanliness-dot.unavailable { background-color: var(--color-gray-500); }
.cleanliness-status.unavailable { color: var(--color-text-light); }

/* Grey legend swatch for the "unavailable" algae legend row.
   Sized/spaced to align with the existing .flag-icon emoji-based legend markers. */
.legend-swatch {
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}
.legend-swatch.clear { background-color: var(--color-info); }
.legend-swatch.moderate { background-color: var(--color-warning); }
.legend-swatch.high { background-color: var(--color-danger); }
.legend-swatch.unavailable { background-color: var(--color-gray-500); }

/* Water-temp disclaimer / general data-disclaimer helper text under the conditions grid:
   small, muted, italic. */
.data-disclaimer {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-style: italic;
  margin-top: calc(-1 * var(--spacing-sm));
  margin-bottom: var(--spacing-md);
  text-align: center;
}

/* Data-error banner: visible warm/red-tinted warning. Hidden by default via .hidden. */
.data-error {
  background-color: rgba(220, 53, 69, 0.12);
  color: var(--color-danger-text);
  border: 1px solid var(--color-danger);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  text-align: center;
}
body.dark-mode .data-error {
  background-color: rgba(250, 82, 82, 0.18);
  color: var(--color-danger-text);
  border-color: var(--color-danger);
}

/* ==========================================================================
   Accessibility + UX pass (WCAG 2.2 AA): utilities, focus, motion, widgets,
   stretched-button cards, accessible markers, redesigned beach-detail modal.
   ========================================================================== */

/* Screen-reader-only text (visible to AT, hidden visually). Used for skip-link
   target, marker accessible names, the live region, and visually-hidden labels. */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; border: 0;
}

/* Skip link — first focusable element, visible only on focus (WCAG 2.4.1). */
.skip-link {
  position: absolute; top: -200px; left: var(--spacing-sm); z-index: 2000;
  background: var(--color-primary); color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--border-radius-sm);
  font-weight: var(--font-weight-bold); text-decoration: none;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--spacing-sm); }
body.dark-mode .skip-link { color: var(--color-black); }

/* Visible, high-contrast focus ring for keyboard users (WCAG 2.4.7 / 2.4.11).
   Mouse clicks don't trigger :focus-visible, so the ring only shows for keyboard. */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 3px;
}
:focus:not(:focus-visible) { outline: none; }
.form-control:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; }

/* Respect prefers-reduced-motion: neutralise non-essential animation/transition
   (bounce, slide-in, theme transitions); the loading icon stops bouncing. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .loading-icon { animation: none !important; }
}

/* Filter chips as an ARIA radiogroup: visual selected state keyed off aria-checked
   (kept in sync with the legacy .active class by JS). */
.filter-controls[role="radiogroup"] { align-items: center; }
.filter-btn[aria-checked="true"] { background-color: var(--color-primary); color: var(--color-white); box-shadow: var(--box-shadow-sm); }
body.dark-mode .filter-btn[aria-checked="true"] { color: var(--color-black); }
.filter-btn .flag-glyph { font-size: 1rem; }

/* Beach list as a semantic list of stretched-button cards.
   The <button> holds the name (its accessible name); ::after stretches the hit
   area over the whole <li>, so the entire card is one keyboard/pointer target. */
.beach-list { list-style: none; margin: 0; }
.beach-item { position: relative; }
.beach-item__btn {
  background: none; border: 0; padding: 0; margin: 0;
  font: inherit; color: inherit; text-align: left; cursor: pointer;
}
.beach-item__btn::after { content: ""; position: absolute; inset: 0; border-radius: var(--border-radius-md); }
.beach-item:has(.beach-item__btn:focus-visible) { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.beach-item:has(.beach-item__btn:focus-visible) .beach-name { text-decoration: underline; }
.beach-item__btn:focus-visible { outline: none; }
.beach-name { line-height: 1.25; }
.beach-item-header .flag-glyph { font-size: 1.6rem; line-height: 1; }
li.no-results { list-style: none; }

/* Accessible map markers: the algae state is shown by SHAPE (a leaf emoji), not
   colour alone (WCAG 1.4.1). Clear/unavailable show no leaf — the full status is
   in the marker's visually-hidden accessible name and in the list/modal text. */
.cleanliness-badge {
  position: absolute; bottom: 0; right: -6px;
  font-size: 13px; line-height: 1;
  filter: drop-shadow(0 0 1px #fff) drop-shadow(0 0 1px #fff);
}

/* Beach-detail modal redesign: safety flag as the hero, grouped metric cards. */
.flag-hero {
  display: flex; align-items: center; justify-content: center; gap: var(--spacing-sm);
  font-weight: var(--font-weight-bold); font-size: 1.25rem; text-align: center;
  padding: var(--spacing-md); margin-bottom: var(--spacing-sm);
  border: 1px solid transparent; border-radius: var(--border-radius-md);
}
.flag-hero.green   { color: var(--color-success-text); background: rgba(40,167,69,0.12);  border-color: rgba(40,167,69,0.45); }
.flag-hero.yellow  { color: var(--color-warning-text); background: rgba(255,193,7,0.16);  border-color: rgba(255,193,7,0.55); }
.flag-hero.red     { color: var(--color-danger-text);  background: rgba(220,53,69,0.12);  border-color: rgba(220,53,69,0.45); }
.flag-hero.unknown { color: var(--color-text-light);   background: var(--color-surface-2); border-color: var(--color-border); }

.modal-section-title {
  font-size: var(--font-size-md); margin: var(--spacing-lg) 0 var(--spacing-sm);
  padding-bottom: var(--spacing-xs); border-bottom: 1px solid var(--color-border);
}

/* Condition cards inside the grid: icon + label + value, scannable at a glance. */
.condition-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: var(--color-surface-2); border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-xs);
}
.condition-icon { font-size: 1.25rem; line-height: 1; }
.condition-value { line-height: 1.2; }

/* Freshness / "last updated" chip — a trust cue, surfaced near the top of the modal. */
.last-updated {
  display: inline-flex; align-items: center; gap: var(--spacing-xs);
  margin: 0 auto var(--spacing-sm); padding: 2px var(--spacing-sm);
  background: var(--color-surface-2); border-radius: 999px;
  font-size: var(--font-size-sm); color: var(--color-text-light);
}
.last-updated-wrap { text-align: center; }
.safety-message { line-height: 1.4; }

/* Trend sparklines (condition history) in the beach-detail modal. */
.trends-section { margin-top: var(--spacing-md); }
.trends-header { display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-sm); flex-wrap: wrap; }
.trends-header .modal-section-title { flex: 1 1 auto; margin-bottom: var(--spacing-sm); }
.trends-range { display: flex; gap: var(--spacing-xs); }
.range-btn {
  min-height: 36px; padding: 2px 12px; font-size: var(--font-size-sm);
  border: 1px solid var(--color-border); border-radius: 999px;
  background: var(--color-surface); color: var(--color-muted-strong); cursor: pointer;
}
.range-btn[aria-checked="true"] { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
body.dark-mode .range-btn[aria-checked="true"] { color: var(--color-black); }
.trends-body { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.trend-row { display: flex; flex-direction: column; gap: 2px; }
.trend-meta { display: flex; justify-content: space-between; align-items: baseline; font-size: var(--font-size-sm); }
.trend-label { color: var(--color-text-light); }
.trend-current { font-weight: var(--font-weight-bold); }
.trend-svg { width: 100%; height: 40px; display: block; }
/* keep the line a constant 2px regardless of the non-uniform horizontal stretch */
.trend-svg polyline, .trend-svg circle { vector-effect: non-scaling-stroke; }
.trend-svg.temp { color: var(--color-warning-text); }
.trend-svg.waves { color: var(--color-primary); }
.trend-svg.algae { color: var(--color-success-text); }
.trends-empty { font-size: var(--font-size-sm); color: var(--color-text-light); font-style: italic; margin: var(--spacing-sm) 0 0; }