/* style.css — Nautical Parchment UI + Responsive Layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #161210;
  font-family: 'fusion-pixel-zh-hant', 'fusion-pixel-latin', 'Courier New', monospace;
  font-weight: 400;
  font-synthesis: none;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
  font-smooth: never;
  color: #2b2118;
}

/* Short labels hidden on desktop; long labels hidden on small screens */
.txt-short { display: none; }
.txt-long { display: inline; }

#canvas-container {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  cursor: grab;
  touch-action: none;
}

#canvas-container:active {
  cursor: grabbing;
}

#canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Top-Left Subtle Title & Camera Preset Bar */
#top-bar {
  position: fixed;
  top: max(10px, env(safe-area-inset-top, 0px));
  left: max(14px, env(safe-area-inset-left, 0px));
  right: max(14px, env(safe-area-inset-right, 0px));
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  z-index: 20;
  gap: 8px;
  flex-wrap: wrap;
}

.brand-cluster {
  pointer-events: auto;
  display: flex;
  align-items: stretch;
  gap: 6px;
  max-width: min(100%, 480px);
}

.brand-badge {
  background: rgba(24, 18, 14, 0.74);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 169, 66, 0.42);
  border-radius: 5px;
  padding: 6px 12px;
  color: #f3ead8;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.42);
  min-width: 0;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 1 1 auto;
  min-height: 28px;
  background: rgba(24, 18, 14, 0.74);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 169, 66, 0.42);
  border-radius: 5px;
  color: #e8cf96;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.42);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.social-btn:hover,
.social-btn:focus-visible {
  background: rgba(212, 169, 66, 0.28);
  color: #fff8e8;
  border-color: #f5d173;
  outline: none;
}

.social-btn svg {
  display: block;
  image-rendering: pixelated;
}

.brand-badge h1 {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #f2c96d;
  margin-bottom: 1px;
  line-height: 1.35;
}

.brand-badge .brand-sub {
  font-size: 12px;
  color: #cbbba0;
  letter-spacing: 0;
  line-height: 1.3;
}

.camera-bar {
  pointer-events: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: flex-end;
  background: rgba(24, 18, 14, 0.74);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 169, 66, 0.38);
  border-radius: 5px;
  padding: 5px 7px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.42);
  max-width: min(100%, 720px);
}

.cam-btn {
  background: rgba(243, 234, 216, 0.1);
  color: #e8dcc4;
  border: 1px solid rgba(212, 169, 66, 0.32);
  border-radius: 3px;
  padding: 4px 8px;
  min-height: 28px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 400;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.cam-btn:hover {
  background: rgba(212, 169, 66, 0.25);
  color: #ffffff;
}

.cam-btn.active {
  background: #d4a942;
  color: #1e140b;
  border-color: #f5d173;
  font-weight: 400;
}

/* Bottom Compact Nautical Parchment Control Dock */
#ui-wrapper {
  position: fixed;
  bottom: max(8px, env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  width: min(1040px, calc(100% - 16px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  z-index: 30;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.helper-caption {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  color: rgba(236, 224, 200, 0.85);
  font-size: 12px;
  line-height: 1.4;
  margin-bottom: 4px;
  padding: 0 4px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.95);
  pointer-events: auto;
}

.hint-text {
  flex: 1 1 auto;
  min-width: 0;
}

.toggle-ui-btn {
  flex: 0 0 auto;
  background: rgba(28, 20, 14, 0.84);
  color: #e8cf96;
  border: 1px solid rgba(212, 169, 66, 0.45);
  border-radius: 3px;
  padding: 4px 10px;
  min-height: 28px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 400;
  cursor: pointer;
  white-space: nowrap;
}

#ui-dock {
  pointer-events: auto;
  width: 100%;
  background: linear-gradient(180deg, #efe7d6 0%, #e4d8c1 100%);
  border: 2px solid #b8a483;
  outline: 1px solid rgba(28, 18, 10, 0.65);
  border-radius: 3px;
  padding: 6px 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.65);
  display: flex;
  flex-direction: column;
  gap: 5px;
  transition: max-height 0.25s ease, opacity 0.22s ease, padding 0.22s ease, border-width 0.22s ease;
  max-height: min(42vh, 320px);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

#ui-dock.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
  outline-width: 0;
  opacity: 0;
  overflow: hidden;
}

.dock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.dock-row + .dock-row {
  border-top: 1px solid rgba(138, 114, 82, 0.28);
  padding-top: 5px;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
  min-width: 0;
}

.control-group.grow {
  flex: 1 1 220px;
  min-width: min(100%, 220px);
}

.wave-group {
  flex: 0 1 180px;
}

.ctrl-label {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: #594734;
  text-transform: uppercase;
  white-space: nowrap;
}

.ctrl-value {
  font-size: 12px;
  font-weight: 400;
  color: #241a10;
  min-width: 36px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

input[type="range"].nautical-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 80px;
  min-width: 64px;
  width: auto;
  height: 12px;
  border-radius: 0;
  outline: none;
  cursor: pointer;
  border: 2px solid #5c4932;
  box-shadow:
    inset 1px 1px 0 rgba(255, 248, 230, 0.45),
    inset -1px -1px 0 rgba(40, 28, 16, 0.35),
    1px 1px 0 rgba(255, 255, 255, 0.35);
  image-rendering: pixelated;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

input[type="range"].wave-slider {
  flex: 1 1 72px;
  min-width: 72px;
  max-width: 120px;
}

/* Stepped pixel bands (day cycle / wave intensity) */
#hourSlider {
  background-image: linear-gradient(90deg,
    #182338 0 12.5%,
    #4a2f58 12.5% 25%,
    #d97b48 25% 37.5%,
    #88c9f2 37.5% 50%,
    #f0c86a 50% 62.5%,
    #e87a3d 62.5% 75%,
    #3a2a4a 75% 87.5%,
    #182338 87.5% 100%
  );
}

#waveSlider {
  background-image: linear-gradient(90deg,
    #9ad8ef 0 20%,
    #4aa8d4 20% 40%,
    #1d6fa3 40% 60%,
    #14507a 60% 80%,
    #0b2d4d 80% 100%
  );
}

input[type="range"].nautical-slider::-webkit-slider-runnable-track {
  height: 12px;
  border-radius: 0;
  background: transparent;
  border: none;
}

input[type="range"].nautical-slider::-moz-range-track {
  height: 12px;
  border-radius: 0;
  background: transparent;
  border: none;
}

/* Pixel brass block thumb — matches parchment buttons */
input[type="range"].nautical-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 20px;
  margin-top: -6px;
  border-radius: 0;
  background:
    linear-gradient(180deg, #fff6df 0 30%, #e8cf96 30% 70%, #b8924a 70% 100%);
  border: 2px solid #2b2118;
  box-shadow:
    inset 1px 1px 0 #fffaf0,
    inset -1px -1px 0 #8a7040,
    2px 2px 0 rgba(0, 0, 0, 0.28);
  cursor: pointer;
  image-rendering: pixelated;
}

input[type="range"].nautical-slider::-moz-range-thumb {
  width: 14px;
  height: 20px;
  border-radius: 0;
  background:
    linear-gradient(180deg, #fff6df 0 30%, #e8cf96 30% 70%, #b8924a 70% 100%);
  border: 2px solid #2b2118;
  box-shadow:
    inset 1px 1px 0 #fffaf0,
    inset -1px -1px 0 #8a7040,
    2px 2px 0 rgba(0, 0, 0, 0.28);
  cursor: pointer;
}

input[type="range"].nautical-slider:active::-webkit-slider-thumb,
input[type="range"].nautical-slider:focus::-webkit-slider-thumb {
  background:
    linear-gradient(180deg, #ffe9b0 0 30%, #d4a942 30% 70%, #9a6f28 70% 100%);
  border-color: #140f0a;
}

input[type="range"].nautical-slider:active::-moz-range-thumb,
input[type="range"].nautical-slider:focus::-moz-range-thumb {
  background:
    linear-gradient(180deg, #ffe9b0 0 30%, #d4a942 30% 70%, #9a6f28 70% 100%);
  border-color: #140f0a;
}

.parch-btn {
  background: #f4ede0;
  color: #2b2118;
  border: 1px solid #9e8a6b;
  border-radius: 2px;
  padding: 4px 7px;
  min-height: 28px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 400;
  cursor: pointer;
  transition: background 0.14s ease, border-color 0.14s ease, transform 0.14s ease;
  white-space: nowrap;
}

.parch-btn:hover {
  background: #fffaf0;
  border-color: #5c4932;
  transform: translateY(-1px);
}

.parch-btn:active {
  transform: translateY(0);
}

.parch-btn.active {
  background: #231c14;
  color: #f5ebd6;
  border-color: #140f0a;
}

.parch-btn.danger-accent {
  color: #8c2318;
  border-color: #b86f64;
  background: #f7e6e1;
}

.parch-btn.danger-accent:hover {
  background: #f5d4cc;
  border-color: #8c2318;
}

.btn-group {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

/* —— Tablet —— */
@media (max-width: 1100px) {
  #ui-wrapper {
    width: calc(100% - 12px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
  }

  .control-group.grow {
    flex: 1 1 100%;
  }

  .wave-group {
    flex: 1 1 auto;
  }

  input[type="range"].wave-slider {
    max-width: none;
  }
}

/* —— Compact tablet / large phone —— */
@media (max-width: 820px) {
  .txt-short { display: inline; }
  .txt-long { display: none; }

  #top-bar {
    top: max(6px, env(safe-area-inset-top, 0px));
    left: max(6px, env(safe-area-inset-left, 0px));
    right: max(6px, env(safe-area-inset-right, 0px));
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .brand-cluster {
    max-width: none;
    width: fit-content;
  }

  .brand-badge {
    padding: 5px 10px;
  }

  .brand-badge .brand-sub {
    display: none;
  }

  .social-btn {
    width: 32px;
    min-height: 32px;
  }

  .camera-bar {
    max-width: none;
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(212, 169, 66, 0.45) transparent;
  }

  .camera-bar::-webkit-scrollbar {
    height: 3px;
  }

  .camera-bar::-webkit-scrollbar-thumb {
    background: rgba(212, 169, 66, 0.45);
    border-radius: 2px;
  }

  .cam-btn {
    flex: 0 0 auto;
    min-height: 32px;
    padding: 5px 10px;
  }

  #ui-wrapper {
    bottom: max(6px, env(safe-area-inset-bottom, 0px));
    width: calc(100% - 10px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
  }

  .helper-caption {
    margin-bottom: 5px;
  }

  #ui-dock {
    padding: 8px;
    gap: 8px;
    max-height: min(48vh, 360px);
  }

  .dock-row {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .dock-row + .dock-row {
    padding-top: 8px;
  }

  .control-group,
  .control-group.grow,
  .wave-group {
    width: 100%;
    flex: 1 1 auto;
    min-width: 0;
  }

  .btn-group {
    width: 100%;
  }

  .btn-group .parch-btn {
    flex: 1 1 calc(50% - 4px);
    text-align: center;
    min-height: 34px;
  }

  .parch-btn {
    min-height: 32px;
    padding: 5px 8px;
  }

  input[type="range"].nautical-slider {
    height: 14px;
  }

  input[type="range"].nautical-slider::-webkit-slider-runnable-track,
  input[type="range"].nautical-slider::-moz-range-track {
    height: 14px;
  }

  input[type="range"].nautical-slider::-webkit-slider-thumb {
    width: 16px;
    height: 22px;
    margin-top: -6px;
  }

  input[type="range"].nautical-slider::-moz-range-thumb {
    width: 16px;
    height: 22px;
  }
}

/* —— Phone —— */
@media (max-width: 520px) {
  #ui-dock {
    max-height: min(52vh, 420px);
    padding: 7px;
  }

  .btn-group .parch-btn {
    flex: 1 1 calc(50% - 3px);
    font-size: 12px;
  }

  .helper-caption {
    align-items: flex-start;
  }

  .toggle-ui-btn {
    min-height: 32px;
  }
}

/* —— Very small / landscape short —— */
@media (max-height: 500px) {
  #ui-dock {
    max-height: min(58vh, 260px);
  }

  .brand-badge .brand-sub {
    display: none;
  }
}

@media (max-width: 820px) and (orientation: landscape) {
  #top-bar {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: flex-start;
  }

  .brand-cluster {
    flex: 0 0 auto;
  }

  .camera-bar {
    flex: 1 1 auto;
    width: auto;
  }

  #ui-dock {
    max-height: min(55vh, 220px);
  }

  .dock-row {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .control-group {
    width: auto;
    flex: 1 1 auto;
  }
}