/* =========================================================
   Base layout
   ========================================================= */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overscroll-behavior: none;
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
}

#map {
  width: 100vw;
  height: 100vh;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* =========================================================
   Buttons / controls
   ========================================================= */
.ol-control-inner, .btn-square {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.85);
  border: 1.5px solid #ccc;
  border-radius: 8px;
  font-size: 15px;
  color: #222;
  cursor: pointer;
  transition: background 0.2s, border 0.2s;
  user-select: none;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.ol-control-inner img, .btn-square img {
  width: 24px;
  height: 24px;
  display: block;
  pointer-events: none;
  user-select: none;
}

.ol-control-inner:active, .ol-control-inner:focus, .ol-control-inner:hover,
.btn-square:active, .btn-square:focus, .btn-square:hover {
  background: #f8f8f8;
  border-color: #999;
}

.btn-square[disabled] {
  opacity: .45;
  cursor: default;
}

/* Active-state styling for toggle buttons (compare / highlight / settings) */
.btn-square.active-btn {
  background: rgba(55, 97, 196, 0.15);
  border-color: #3761c4;
}
.btn-square.active-btn img {
  filter: brightness(0) saturate(100%) invert(27%) sepia(72%) saturate(3440%)
          hue-rotate(210deg) brightness(92%) contrast(91%);
}

/* =========================================================
   Control groups positioning
   ========================================================= */
.group-top-right {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1100;
  align-items: flex-end;
}

.group-top-left {
  position: absolute;
  top: 8px;
  left: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1100;
}

.group-bottom-right {
  position: absolute;
  right: 8px;
  bottom: calc(18px + env(safe-area-inset-bottom, 0));
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1100;
}

.zoom-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Row for the two date buttons at the top-right */
.date-row {
  display: flex;
  flex-direction: row;
  gap: 8px;
  justify-content: flex-end;
  width: 100%;
}

/* =========================================================
   Date popups
   ========================================================= */
#date-popup, #left-date-popup {
  display: none;
  opacity: 0;
  position: fixed;
  min-width: 180px;
  max-height: 70vh;
  overflow-y: auto;
  background: rgba(255,255,255,0.96);
  border: 1.5px solid #ccc;
  border-radius: 8px;
  box-shadow: 0 3px 15px #0002;
  z-index: 1400;
  font-family: Arial, Helvetica, sans-serif;
  transition: opacity .18s ease;
}

.date-popup-item {
  display: block;
  width: 100%;
  border: none;
  background: none;
  font-size: 15px;
  text-align: left;
  padding: 9px 16px;
  cursor: pointer;
  font-family: Arial, Helvetica, sans-serif;
}

.date-popup-item.selected {
  background: #f2f5fa;
  color: #3761c4;
  font-weight: bold;
}

.date-popup-item:active, .date-popup-item:hover {
  background: #f8f8f8;
}

/* =========================================================
   Date display + messages
   ========================================================= */
#current-date-display {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1500;
  background: none;
  color: #fff;
  font-size: 22px;
  font-weight: bold;
  text-shadow: 0 3px 16px #222, 0 1px 0 #222;
  pointer-events: none;
  opacity: 0.97;
  padding: 0 22px;
}

#findme-message {
  display: none;
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  background: rgba(255,255,255,0.92);
  color: #d62525;
  font-size: 17px;
  font-weight: bold;
  text-align: center;
  opacity: 0;
  padding: 7px 20px;
  border-radius: 16px;
  box-shadow: 0 2px 8px #0001;
  transition: opacity 0.4s;
  pointer-events: none;
}

/* These start hidden; core.js will show when applicable */
#compare-btn, #highlight-btn, #settings-btn {
  display: none;
}

/* =========================================================
   Swipe compare UI
   ========================================================= */
#swipe-thumb {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 5px;
  background: #e24141cc;
  z-index: 1300;
  cursor: ew-resize;
  border-radius: 3px;
  box-shadow: 0 2px 12px #3336;
  pointer-events: auto;
  display: none;
}

#swipe-handle {
  position: absolute;
  width: 34px;
  height: 34px;
  background: #fff;
  border: 4px solid #e24141cc;
  border-radius: 50%;
  box-shadow: 0 2px 12px #2225;
  z-index: 1400;
  cursor: grab;
  touch-action: none;
  display: none;
  transition: background 0.1s, border 0.1s;
}

#swipe-handle:active {
  background: #ffeaea;
  border-color: #e24141;
}

/* =========================================================
   Sensitivity panel
   ========================================================= */
#sensitivity-row {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(18px + env(safe-area-inset-bottom, 0));
  display: none;
  background: rgba(255,255,255,0.96);
  padding: 10px 14px;
  border: 1.5px solid #ccc;
  border-radius: 10px;
  z-index: 1600;
  box-shadow: 0 4px 16px #0002;
  touch-action: manipulation;
}

#sensitivity-row label {
  font-size: 13px;
  color: #555;
  display: block;
  margin-bottom: 6px;
  text-align: center;
}

#sensitivity-slider {
  width: 200px;
}

/* =========================================================
   Location Dock
   ========================================================= */
#location-dock {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(16px + env(safe-area-inset-bottom, 0));
  display: flex;
  gap: 14px;
  background: rgba(255,255,255,0.9);
  padding: 8px 14px;
  border-radius: 12px;
  box-shadow: 0 2px 8px #0003;
  z-index: 1200;
  touch-action: manipulation;
}

#location-dock button {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
}

#location-dock img {
  width: 36px;
  height: 36px;
  display: block;
}

/* =========================================================
   Info icon + overlay
   ========================================================= */
#info-icon {
  position: fixed;
  left: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom, 0));
  width: 32px;
  height: 32px;
  z-index: 1500;
  cursor: pointer;
  user-select: none;
  -webkit-user-drag: none;
}

#info-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  color: #fff;
  display: none;
  z-index: 2000;
  padding: 20px;
  overflow-y: auto;
}

#info-overlay .panel {
  max-width: 720px;
  margin: 40px auto;
  background: #23287b;
  padding: 18px 18px 12px;
  border-radius: 12px;
  box-shadow: 0 6px 24px #0009;
}

#info-overlay .panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

#info-overlay h2 {
  margin: 0;
  font-size: 22px;
}

#info-close {
  appearance: none;
  border: none;
  background: #fff;
  color: #23287b;
  font-weight: 700;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}

#info-overlay .panel section { line-height: 1.45; }
#info-overlay .panel ul { margin: 8px 0 0 18px; }
#info-overlay a { color: #fff; text-decoration: underline; }
#info-overlay a:hover { color: #ffd700; }

/* =========================================================
   Recent changes + Report a change (board + modal)
   Hidden by default (CRITICAL)
   ========================================================= */
#changes-overlay, #report-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: none; /* IMPORTANT */
  z-index: 2200;
}

#changes-board {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: min(420px, 92vw);
  background: rgba(255,255,255,0.98);
  border-left: 1.5px solid #ccc;
  box-shadow: -6px 0 24px #0002;
  z-index: 2300;
  display: none; /* IMPORTANT */
  overflow: hidden;
  font-family: Arial, Helvetica, sans-serif;
}

#changes-board header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 12px;
  border-bottom: 1px solid #e5e5e5;
  background: #fff;
}

#changes-board header h3 {
  margin: 0;
  font-size: 16px;
  color: #222;
}

#changes-close {
  appearance: none;
  border: 1px solid #ccc;
  background: #fff;
  color: #222;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

#changes-board .meta {
  padding: 10px 12px;
  font-size: 13px;
  color: #555;
  border-bottom: 1px solid #f0f0f0;
  background: #fff;
}

#changes-list {
  height: calc(100vh - 112px);
  overflow-y: auto;
  padding: 8px 8px 12px;
}

.change-item {
  width: 100%;
  text-align: left;
  border: 1px solid #e6e6e6;
  background: #fff;
  border-radius: 10px;
  padding: 10px 10px;
  cursor: pointer;
  margin: 8px 0;
  box-shadow: 0 1px 8px #0001;
}

.change-item:hover { background: #fafafa; }

/* Highlight changes for the currently selected map version */
.change-item.change-item-active {
  border-color: #3761c4;
  box-shadow: 0 2px 12px rgba(55, 97, 196, 0.18);
}
.change-item.change-item-active .change-title {
  color: #3761c4;
}

.change-title {
  font-size: 14px;
  color: #111;
  margin: 0 0 4px 0;
}

.change-sub {
  font-size: 12px;
  color: #666;
  margin: 0;
  line-height: 1.35;
}

#report-modal {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(520px, 92vw);
  max-height: 86vh;
  overflow: auto;
  background: #fff;
  border: 1.5px solid #ccc;
  border-radius: 12px;
  box-shadow: 0 8px 28px #0003;
  z-index: 2301;
  display: none; /* IMPORTANT */
  font-family: Arial, Helvetica, sans-serif;
}

#report-modal header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 12px;
  border-bottom: 1px solid #eee;
}

#report-modal header h3 {
  margin: 0;
  font-size: 16px;
  color: #222;
}

#report-close {
  appearance: none;
  border: 1px solid #ccc;
  background: #fff;
  color: #222;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

#report-modal .body { padding: 12px; }

.form-row { margin-bottom: 10px; }
.form-row label {
  display: block;
  font-size: 13px;
  color: #444;
  margin-bottom: 6px;
}

.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 10px;
  padding: 10px 10px;
  font-size: 14px;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
}

.form-row textarea { min-height: 110px; resize: vertical; }

.hint {
  font-size: 12px;
  color: #666;
  margin-top: 6px;
  line-height: 1.35;
}

#report-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 12px;
  border-top: 1px solid #eee;
  background: #fff;
}

.btn-primary {
  appearance: none;
  border: 1px solid #3761c4;
  background: #3761c4;
  color: #fff;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
}

.btn-secondary {
  appearance: none;
  border: 1px solid #ccc;
  background: #fff;
  color: #222;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
}

#report-status {
  padding: 0 12px 12px;
  font-size: 13px;
  color: #444;
  display: none;
}

/* =========================================================
   Mobile tweaks
   ========================================================= */
@media (max-width: 600px) {
  .group-top-right { right: 8px; top: 8px; gap: 6px; }
  .group-bottom-right { right: 8px; bottom: calc(8px + env(safe-area-inset-bottom, 0)); gap: 6px; }
  .group-top-left { left: 8px; top: 8px; gap: 6px; }

  .ol-control-inner, .btn-square {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    font-size: 13px;
  }

  .ol-control-inner img, .btn-square img {
    width: 18px;
    height: 18px;
  }

  #current-date-display {
    font-size: 16px;
    padding: 0 10px;
    top: 10px;
  }

  #sensitivity-slider { width: 160px; }
  #location-dock img { width: 28px; height: 28px; }
  #info-icon { width: 28px; height: 28px; }
}