html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  font-family: "Noto Serif SC", "Songti SC", "SimSun", "Microsoft YaHei", serif;
  background: #4f8cad;
}

:root {
  --ui-font: "Noto Serif SC", "Songti SC", "SimSun", "Microsoft YaHei", serif;
  --number-font: "Inter", "Segoe UI", "Roboto", "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
}

#map {
  position: fixed;
  inset: 0;
}

.maplibregl-ctrl-bottom-right {
  bottom: 18px;
  right: 18px;
}

.map-controls {
  position: fixed;
  left: 18px;
  top: 18px;
  z-index: 2;
  width: min(360px, calc(100vw - 36px));
  box-sizing: border-box;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(16, 35, 50, 0.9);
  color: #f8f1da;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
}

.control-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.title-block {
  min-width: 0;
}

h1 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0;
}

#status {
  margin: 3px 0 0;
  color: rgba(248, 241, 218, 0.64);
  font-size: 12px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#year-label {
  flex: 0 0 auto;
  color: #ffffff;
  font-family: var(--number-font);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.head-actions {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.panel-toggle {
  display: none;
  width: 32px;
  height: 32px;
  min-width: 32px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff4d3;
  font-family: var(--number-font);
  font-size: 18px;
  line-height: 1;
}

.map-controls.is-collapsed .control-head {
  margin-bottom: 0;
}

.map-controls.is-collapsed .control-body {
  display: none;
}

.map-controls.is-collapsed .panel-toggle {
  transform: rotate(180deg);
}

.year-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

input,
button {
  height: 40px;
  box-sizing: border-box;
  border-radius: 6px;
  font: inherit;
}

.year-form input {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0 11px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-family: var(--number-font);
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  outline: none;
}

.year-form input::placeholder {
  color: rgba(248, 241, 218, 0.48);
}

button {
  border: 0;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.12);
  color: #f8f1da;
  cursor: pointer;
  white-space: nowrap;
}

.load-year-btn {
  min-width: 58px;
  border: 1px solid rgba(238, 196, 112, 0.38);
  background: rgba(238, 196, 112, 0.16);
  color: #fff7df;
  font-size: 14px;
  font-weight: 500;
}

.load-year-btn.is-loading {
  cursor: wait;
  opacity: 0.72;
}

.timeline-row {
  margin-top: 12px;
}

#timeline-slider {
  display: block;
  width: 100%;
  height: 28px;
  margin: 0;
  accent-color: #eec470;
}

#timeline-count {
  display: block;
  margin-top: 2px;
  color: rgba(248, 241, 218, 0.62);
  font-size: 12px;
  text-align: right;
}

.timeline-actions {
  display: grid;
  grid-template-columns: 44px 72px 44px;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.timeline-actions button,
.step-size {
  height: 38px;
  padding: 0;
  border-radius: 8px;
  text-align: center;
}

.timeline-actions button {
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.08);
  color: #fff4d3;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  font-weight: 400;
  line-height: 1;
}

.step-size {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  font-family: var(--number-font);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  outline: none;
}

.layer-toggles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
  margin-top: 10px;
}

.layer-toggles button {
  height: 32px;
  padding: 0 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(248, 241, 218, 0.78);
  font-size: 13px;
}

.layer-toggles button[aria-pressed="true"] {
  border-color: rgba(238, 196, 112, 0.52);
  background: rgba(238, 196, 112, 0.18);
  color: #fff7df;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

@media (hover: hover) {
  button:hover {
    background: rgba(255, 255, 255, 0.18);
  }

}

@media (max-width: 900px) {
  .map-controls {
    left: 12px;
    right: 12px;
    top: auto;
    bottom: max(12px, env(safe-area-inset-bottom));
    width: auto;
    max-width: 720px;
    margin: 0 auto;
    padding: 12px;
  }

  .maplibregl-ctrl-bottom-right {
    bottom: calc(188px + env(safe-area-inset-bottom));
    right: 12px;
  }

  .panel-collapsed .maplibregl-ctrl-bottom-right {
    bottom: max(12px, env(safe-area-inset-bottom));
  }

  .panel-toggle {
    display: grid;
    place-items: center;
  }

  .map-controls.is-collapsed {
    width: auto;
    left: 12px;
    right: auto;
    padding: 10px 12px;
  }

  .control-head {
    margin-bottom: 10px;
  }

  h1 {
    font-size: 16px;
  }

  #year-label {
    font-size: 23px;
  }

  input,
  button {
    height: 42px;
  }

  .timeline-actions button,
  .step-size {
    height: 38px;
  }
}

@media (max-width: 520px) {
  .map-controls {
    left: 8px;
    right: 8px;
    bottom: max(8px, env(safe-area-inset-bottom));
    padding: 9px;
  }

  .maplibregl-ctrl-bottom-right {
    bottom: calc(174px + env(safe-area-inset-bottom));
    right: 8px;
  }

  .panel-collapsed .maplibregl-ctrl-bottom-right {
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  .control-head {
    margin-bottom: 8px;
  }

  h1 {
    font-size: 16px;
  }

  #status,
  #timeline-count {
    font-size: 11px;
  }

  .timeline-row {
    margin-top: 8px;
  }

  .timeline-actions {
    grid-template-columns: 42px 68px 42px;
    gap: 7px;
    margin-top: 7px;
  }

  input,
  button {
    height: 38px;
  }

  .timeline-actions button,
  .step-size {
    height: 36px;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .map-controls {
    top: 8px;
    bottom: auto;
    left: 8px;
    right: auto;
    width: min(330px, calc(100vw - 16px));
    padding: 9px;
  }

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

  .control-head {
    margin-bottom: 7px;
  }

  .timeline-row {
    margin-top: 7px;
  }

  .timeline-actions {
    grid-template-columns: 40px 64px 40px;
    margin-top: 7px;
  }

  input,
  button {
    height: 36px;
  }

  .timeline-actions button,
  .step-size {
    height: 34px;
  }

  .maplibregl-ctrl-bottom-right {
    bottom: 8px;
    right: 8px;
  }
}