/* ============================================
   Augus — Visitor Frontend Styles
   Mobile-first, accessible, minimal
   ============================================ */

:root {
  /* Colors — high contrast, accessible */
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-primary: #0057b8;
  --color-primary-hover: #003d82;
  --color-primary-text: #ffffff;
  --color-border: #cccccc;
  --color-surface: #f5f5f5;
  --color-highlight: #fff3cd;
  --color-danger: #c62828;
  --color-overlay: rgba(0, 0, 0, 0.85);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 1rem;
  --font-size-xl: 1.25rem;
  --font-size-xxl: 1.5rem;
  --line-height: 1.6;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Layout */
  --max-width: 600px;
  --player-height: 140px;
  --header-height: 88px;
  --btn-min-size: 48px;
}

/* Font size settings */
body.font-xl {
  --font-size-base: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 1.875rem;
}

body.font-xxl {
  --font-size-base: 1.5rem;
  --font-size-xl: 1.875rem;
  --font-size-xxl: 2.25rem;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  overflow-x: hidden;
}

/* Focus indicators — WCAG compliant */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.header__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  padding: var(--spacing-sm) var(--spacing-md) 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header__actions {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 0 var(--spacing-xs);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  min-width: var(--btn-min-size);
  min-height: var(--btn-min-size);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
  background: transparent;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover,
.btn:active {
  background: var(--color-primary);
  color: var(--color-primary-text);
}

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

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

.btn--icon {
  padding: var(--spacing-sm);
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text);
}

.btn--icon:hover,
.btn--icon:active {
  background: var(--color-surface);
}

.btn--icon.btn--active {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
}

.btn--icon svg {
  width: 24px;
  height: 24px;
}

.btn--large {
  min-width: 64px;
  min-height: 64px;
}

.btn--large svg {
  width: 32px;
  height: 32px;
}

/* ===== PAGE VIEWS ===== */
.view {
  display: none;
  flex-direction: column;
  min-height: calc(100dvh - var(--header-height));
}

.view.active {
  display: flex;
}

/* ===== OBJECT PAGE ===== */
.object-page {
  padding-bottom: var(--player-height);
}

/* Thumbnail */
.thumbnail-container {
  padding: var(--spacing-md);
  text-align: center;
}

.thumbnail {
  max-width: 100%;
  max-height: 200px;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid var(--color-border);
  object-fit: cover;
}

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

/* Subtitles */
.subtitles-area {
  flex: 1;
  padding: var(--spacing-md);
  overflow-y: auto;
}

.subtitle-cue {
  padding: var(--spacing-xs) var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  border-radius: 4px;
  transition: background 0.2s;
  font-size: var(--font-size-base);
  line-height: var(--line-height);
}

.subtitle-cue.active {
  background: var(--color-highlight);
  font-weight: 600;
}

.no-audio-message {
  padding: var(--spacing-xl);
  text-align: center;
  color: var(--color-text-secondary);
  font-style: italic;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

/* Audio player — sticky bottom */
.audio-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-bg);
  border-top: 2px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-md);
}

.audio-player.hidden {
  display: none;
}

.player-progress {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.player-progress__time {
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  min-width: 3.5em;
  text-align: center;
  color: var(--color-text-secondary);
}

.player-progress__bar {
  flex: 1;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-border);
  border-radius: 4px;
  cursor: pointer;
}

.player-progress__bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
}

.player-progress__bar::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  border: none;
  cursor: pointer;
}

.player-progress__bar::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 4px;
}

.player-progress__bar::-moz-range-track {
  height: 8px;
  border-radius: 4px;
  background: var(--color-border);
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}

/* ===== GALLERY ===== */
.gallery-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--color-overlay);
  flex-direction: column;
}

.gallery-overlay.active {
  display: flex;
}

.gallery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  color: #ffffff;
}

.gallery-header__counter {
  font-size: var(--font-size-base);
}

.gallery-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.gallery-body__image {
  max-width: 90%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
}

.gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #ffffff;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  min-width: var(--btn-min-size);
  min-height: var(--btn-min-size);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.gallery-nav:hover {
  background: rgba(0, 0, 0, 0.8);
}

.gallery-nav--prev {
  left: var(--spacing-sm);
}

.gallery-nav--next {
  right: var(--spacing-sm);
}

.gallery-caption {
  padding: var(--spacing-md);
  color: #ffffff;
  text-align: center;
  font-size: var(--font-size-base);
  min-height: 3em;
}

.gallery-close {
  color: #ffffff;
  background: transparent;
  border: none;
  min-width: var(--btn-min-size);
  min-height: var(--btn-min-size);
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-close:hover {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

/* ===== LIST VIEW ===== */
.list-view {
  padding: var(--spacing-md);
}

.list-view__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.list-view__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.object-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.object-list__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-surface);
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s;
}

.object-list__item:hover,
.object-list__item:focus-visible {
  border-color: var(--color-primary);
}

.object-list__item.current {
  border-color: var(--color-primary);
  background: #e8f0fe;
}

.object-list__number {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 2em;
  text-align: center;
}

.object-list__thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 4px;
  background: var(--color-border);
}

.object-list__info {
  flex: 1;
  overflow: hidden;
}

.object-list__name {
  font-weight: 600;
  font-size: var(--font-size-base);
}

.object-list__desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== MAP VIEW ===== */
.map-view {
  position: relative;
  flex: 1;
  overflow: hidden;
  touch-action: none;
}

.map-container {
  position: relative;
  transform-origin: 0 0;
  cursor: grab;
}

.map-container:active {
  cursor: grabbing;
}

.map-container__image {
  display: block;
  width: 100%;
  user-select: none;
  -webkit-user-drag: none;
}

.map-pin {
  position: absolute;
  transform: translate(-50%, -50%);
  /* Size scales with the user's font-size setting */
  font-size: var(--font-size-base);
  width: 2.5em;
  height: 2.5em;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-primary-text);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  cursor: pointer;
  z-index: 10;
  text-decoration: none;
}

.map-pin:hover,
.map-pin:focus-visible {
  background: var(--color-primary-hover);
  transform: translate(-50%, -50%) scale(1.15);
}

.map-controls {
  position: absolute;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  z-index: 20;
}

.map-controls .btn {
  background: var(--color-bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.map-controls .btn svg {
  width: 1.1em;
  height: 1.1em;
  display: block;
}

/* ===== QR SCANNER ===== */
.scanner-view {
  flex: 1;
  flex-direction: column;
  background: #000;
}

.scanner-video-container {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scanner-video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scanner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.scanner-frame {
  width: 250px;
  height: 250px;
  border: 3px solid #ffffff;
  border-radius: 16px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
}

.scanner-text {
  margin-top: var(--spacing-lg);
  color: #ffffff;
  font-size: var(--font-size-xl);
  font-weight: 600;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.scanner-toast {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-danger);
  color: #ffffff;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 8px;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.scanner-toast.visible {
  opacity: 1;
}

/* ===== SETTINGS ===== */
.settings-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--color-overlay);
  align-items: flex-end;
  justify-content: center;
}

.settings-overlay.active {
  display: flex;
}

.settings-panel {
  background: var(--color-bg);
  border-radius: 16px 16px 0 0;
  padding: var(--spacing-lg);
  width: 100%;
  max-width: var(--max-width);
  max-height: 80vh;
  overflow-y: auto;
}

.settings-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.settings-panel__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
  gap: var(--spacing-sm) var(--spacing-md);
}

.setting-row:last-child {
  border-bottom: none;
}

.setting-row__label {
  font-weight: 600;
  font-size: var(--font-size-base);
}

.setting-row__control {
  display: flex;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

/* Toggle switch */
.toggle {
  position: relative;
  width: 56px;
  height: 32px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: 32px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle__slider::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 26px;
  background: #ffffff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle input:checked + .toggle__slider {
  background: var(--color-primary);
}

.toggle input:checked + .toggle__slider::before {
  transform: translateX(24px);
}

.toggle input:focus-visible + .toggle__slider {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Segmented control for settings */
.segmented {
  display: flex;
  gap: 1px;
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  overflow: hidden;
}

.segmented__option {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: inherit;
  background: var(--color-bg);
  color: var(--color-primary);
  border: none;
  cursor: pointer;
  min-height: var(--btn-min-size);
  transition: background 0.15s, color 0.15s;
}

.segmented__option.active {
  background: var(--color-primary);
  color: var(--color-primary-text);
}

.segmented__option:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -3px;
}

/* ===== LOADING ===== */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--color-text-secondary);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: var(--spacing-sm);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: calc(var(--player-height) + var(--spacing-md));
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 8px;
  font-weight: 600;
  z-index: 600;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.toast.visible {
  opacity: 1;
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== UTILITY ===== */
.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;
}

.hidden {
  display: none !important;
}