:root {
  --ground: #050506;
  --ink: #ecece8;
  --dim: rgba(236, 236, 232, 0.64);
  --faint: rgba(236, 236, 232, 0.4);
  --hair: rgba(236, 236, 232, 0.17);
  --veil: rgba(5, 5, 6, 0.84);
  --err: #e7a39b;
  --accent: #ffe9c4;
  --latin: "Manrope", "Helvetica Neue", Arial, sans-serif;
  --cjk: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --pad: clamp(16px, 2.8vw, 42px);
  color-scheme: dark;
}

:root[data-paper="light"] {
  --ground: #f4f4f1;
  --ink: #101012;
  --dim: rgba(16, 16, 18, 0.66);
  --faint: rgba(16, 16, 18, 0.44);
  --hair: rgba(16, 16, 18, 0.18);
  --veil: rgba(244, 244, 241, 0.86);
  --err: #a8322a;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  overflow: hidden;
  font-family: var(--latin);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.5s ease, color 0.5s ease;
  user-select: none;
  -webkit-user-select: none;
}

canvas#c {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: var(--cur, grab);
}

canvas#c.hover-node {
  cursor: pointer;
}

canvas#c.drag {
  cursor: var(--grab, grabbing);
}

html,
button,
label,
.seg,
.mbar,
.rail,
#foot {
  touch-action: manipulation;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  letter-spacing: inherit;
  text-transform: inherit;
}

button:disabled {
  opacity: 0.35;
  cursor: default;
}

button:focus-visible,
label:focus-within {
  outline: 1px solid var(--dim);
  outline-offset: 4px;
}

input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.ui {
  transition: opacity 0.6s ease;
}

body.hide-ui .ui {
  opacity: 0;
  pointer-events: none;
}

.brand,
.foot,
.corner,
.rail {
  text-shadow: 0 0 6px var(--ground), 0 0 2px var(--ground);
}

.brand {
  position: fixed;
  left: var(--pad);
  top: calc(var(--pad) + env(safe-area-inset-top, 0px));
  display: grid;
  gap: 10px;
  justify-items: start;
  z-index: 4;
  pointer-events: none;
}

.brand button {
  pointer-events: auto;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.name {
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.6em;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: opacity 0.25s ease;
}

.name:hover {
  opacity: 0.78;
}

.tag-crumb {
  font-size: 11px;
  letter-spacing: 0.42em;
  color: var(--dim);
}

.brand-sub {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.sub-nav,
.back-net {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-size: 9.5px;
  letter-spacing: 0.32em;
  color: var(--dim);
  background: var(--veil);
  border: 1px solid var(--hair);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.sub-nav:hover,
.back-net:hover,
body.album-open .sub-nav {
  color: var(--ink);
  border-color: var(--dim);
}

.memory-pill .mem-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faint);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.memory-pill.on {
  color: var(--ink);
  border-color: var(--dim);
  background: rgba(236, 236, 232, 0.08);
}

.memory-pill.on .mem-dot {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 16px;
  padding: 0 5px;
  font-size: 8.5px;
  letter-spacing: 0.1em;
  border-radius: 999px;
  background: rgba(236, 236, 232, 0.12);
  color: var(--ink);
}

.sub-nav[hidden],
.back-net[hidden],
.tag-crumb[hidden] {
  display: none !important;
}

.status {
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  line-height: 1.9;
  text-transform: uppercase;
  max-width: min(62vw, 430px);
}

.corner {
  display: none !important;
}

.corner-row {
  display: flex;
  align-items: center;
  gap: 16px;
  pointer-events: auto;
}

#paper {
  width: 26px;
  height: 26px;
  display: block;
  color: var(--ink);
  pointer-events: auto;
}

#paper svg {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.7s cubic-bezier(0.3, 0.7, 0.2, 1);
}

:root[data-paper="light"] #paper svg {
  transform: rotate(180deg);
}

#paper .lightdot {
  fill: var(--ground);
}

.icon-btn {
  width: 22px;
  height: 22px;
  display: block;
  color: var(--dim);
  pointer-events: auto;
  transition: color 0.2s;
}

.icon-btn:hover {
  color: var(--ink);
}

.icon-btn svg {
  width: 100%;
  height: 100%;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
}

#fsBtn .fs-out {
  display: none;
}

#fsBtn.on .fs-in {
  display: none;
}

#fsBtn.on .fs-out {
  display: inline;
}

.text-btn {
  pointer-events: auto;
  font-size: 8.5px;
  letter-spacing: 0.3em;
  color: var(--dim);
  padding-left: 0.3em;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.text-btn:hover {
  color: var(--ink);
}

.text-btn.live {
  color: var(--err);
}

.text-btn.live .rdot {
  background: var(--err);
  border-color: var(--err);
  animation: blink 1.1s steps(2, start) infinite;
}

.cjk {
  font-family: var(--cjk);
  font-size: 24px;
  line-height: 1;
  opacity: 0.85;
}

#veil {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
  mix-blend-mode: difference;
  opacity: 0;
}

#veil .thin {
  stroke: #fff;
  stroke-width: 1;
  fill: none;
  opacity: 0.5;
  vector-effect: non-scaling-stroke;
}

#hud {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Modal / Help & Credits */
.modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  background: var(--veil);
  padding: 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-box {
  width: min(620px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  border: 1px solid var(--hair);
  background: var(--ground);
  padding: 24px 26px;
  display: grid;
  gap: 18px;
  font-size: 11px;
  line-height: 1.7;
  color: var(--dim);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--ink);
}

.modal-close {
  color: var(--dim);
  letter-spacing: 0.3em;
}

.modal-close:hover {
  color: var(--ink);
}

.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px 24px;
  border-top: 1px solid var(--hair);
  padding-top: 14px;
}

.shortcut-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  letter-spacing: 0.14em;
}

.shortcut-item kbd {
  font-family: var(--latin);
  font-size: 9px;
  letter-spacing: 0.16em;
  padding: 2px 6px;
  border: 1px solid var(--hair);
  color: var(--ink);
}

/* Picture Rail — Glass Memory Orbs */
.rail {
  position: fixed;
  left: var(--pad);
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  max-height: calc(100vh - 280px);
  overflow-y: auto;
  overflow-x: visible;
  scrollbar-width: none;
  padding: 12px 10px;
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

body.network-view .rail {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(-22px);
}

.rail::-webkit-scrollbar {
  display: none;
}

.pic {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pic .face {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: block;
  position: relative;
  padding: 0;
  border: none;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.14), rgba(0, 0, 0, 0.5) 75%);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.35),
    inset 0 -3px 6px rgba(0, 0, 0, 0.6),
    0 6px 18px rgba(0, 0, 0, 0.45);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.35s ease, box-shadow 0.35s ease;
  opacity: 0.72;
  overflow: hidden;
}

.pic .face::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  background:
    radial-gradient(120% 80% at 28% 18%, rgba(255, 255, 255, 0.34) 0%, rgba(255, 255, 255, 0.06) 28%, transparent 52%),
    radial-gradient(90% 90% at 75% 84%, rgba(255, 255, 255, 0.16) 0%, transparent 45%);
}

.pic .face canvas {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
}

.pic .face:hover {
  opacity: 0.96;
  transform: scale(1.06);
}

.pic.on .face {
  opacity: 1;
  transform: scale(1.08);
  box-shadow:
    0 0 0 1.5px var(--ink),
    0 0 22px rgba(255, 233, 196, 0.22),
    0 8px 24px rgba(0, 0, 0, 0.65);
}

.pic.wait .face {
  opacity: 0.3;
}

.pic .x {
  position: absolute;
  right: -2px;
  top: -2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0;
  padding: 0;
  color: var(--ink);
  background: var(--ground);
  border: 1px solid var(--hair);
  opacity: 0;
  transition: opacity 0.25s, transform 0.2s;
  z-index: 2;
}

.pic .x:hover {
  transform: scale(1.12);
}

@media (hover: none) {
  .pic .x {
    opacity: 0.9;
    width: 22px;
    height: 22px;
    right: -4px;
    top: -4px;
    font-size: 13px;
  }
}

.pic:hover .x,
.pic .x:focus-visible {
  opacity: 1;
}

.add {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  display: grid;
  place-items: center;
  color: var(--dim);
  cursor: pointer;
  background: radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.06), rgba(0, 0, 0, 0.4) 75%);
  box-shadow:
    inset 0 0 0 1px var(--hair),
    0 4px 14px rgba(0, 0, 0, 0.35);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), color 0.3s, box-shadow 0.3s;
  overflow: hidden;
}

.add svg {
  width: 100%;
  height: 100%;
  display: block;
}

.add:hover {
  color: var(--ink);
  transform: scale(1.06);
  box-shadow:
    inset 0 0 0 1px var(--dim),
    0 6px 18px rgba(0, 0, 0, 0.5);
}

.add[aria-disabled="true"] {
  opacity: 0.3;
  pointer-events: none;
}

/* Hints & Toasts */
.hint {
  position: fixed;
  left: 50%;
  top: calc(var(--pad) * 0.42 + env(safe-area-inset-top, 0px));
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.42em;
  color: var(--dim);
  pointer-events: none;
  transition: opacity 0.8s ease;
  text-align: center;
  line-height: 2.2;
  z-index: 3;
  padding-left: 0.42em;
  width: max-content;
  max-width: max(240px, calc(100vw - 600px));
  text-shadow: 0 0 8px var(--ground);
}

.toast {
  position: fixed;
  left: 50%;
  top: calc(var(--pad) + 60px);
  transform: translateX(-50%);
  z-index: 12;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  line-height: 1.7;
  color: var(--ink);
  max-width: min(560px, calc(100vw - 32px));
  text-align: center;
  transition: opacity 0.5s;
  background: var(--veil);
  border: 1px solid var(--hair);
  padding: 8px 16px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.toast.bad {
  color: var(--err);
}

/* Bottom Pull-Up Settings Tab & Footer Controls */
.foot-tab {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px 7px 18px;
  font-size: 9.5px;
  letter-spacing: 0.34em;
  color: var(--dim);
  background: var(--veil);
  border: 1px solid var(--hair);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    bottom 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    color 0.25s ease,
    border-color 0.25s ease,
    opacity 0.6s ease;
}

.foot-tab:hover {
  color: var(--ink);
  border-color: var(--dim);
}

.foot-tab .chev {
  display: inline-block;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

body.sheet .foot-tab {
  bottom: calc(var(--foot-h, 130px) + var(--pad) + 14px + env(safe-area-inset-bottom, 0px));
  color: var(--ink);
}

body.sheet .foot-tab .chev {
  transform: rotate(180deg);
}

.foot {
  position: fixed;
  left: var(--pad);
  right: var(--pad);
  bottom: calc(var(--pad) + env(safe-area-inset-bottom, 0px));
  z-index: 6;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 28px;
  font-size: 10px;
  letter-spacing: 0.32em;
  color: var(--dim);
  pointer-events: none;
  transform: translateY(calc(100% + 56px));
  opacity: 0;
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.35s ease;
}

body.sheet .foot {
  transform: translateY(0);
  opacity: 1;
}

body.sheet .foot > * {
  pointer-events: auto;
}

.foot button:hover:not(:disabled),
.foot label:hover {
  color: var(--ink);
}

.transport {
  display: grid;
  gap: 9px;
  justify-items: start;
  min-width: 0;
}

.transport button,
.transport label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.key {
  color: var(--faint);
  font-size: 9px;
  letter-spacing: 0.26em;
}

.rdot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid currentColor;
  display: block;
}

.rdot.lit {
  background: var(--ink);
}

@keyframes blink {
  to {
    visibility: hidden;
  }
}

.tri {
  width: 0;
  height: 0;
  border-left: 8px solid currentColor;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.bars {
  width: 8px;
  height: 10px;
  border-left: 2px solid currentColor;
  border-right: 2px solid currentColor;
}

/* Sliders & Score */
.score {
  flex: 1 1 380px;
  max-width: 660px;
  min-width: 0;
  display: grid;
  gap: 12px;
}

.sens {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px 20px;
  font-size: 9px;
  letter-spacing: 0.26em;
  color: var(--faint);
}

.sens label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  min-width: 36px;
  height: 16px;
  margin: 0;
  background: transparent;
  cursor: ew-resize;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 1px;
  background: var(--hair);
}

input[type="range"]::-moz-range-track {
  height: 1px;
  background: var(--hair);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
  margin-top: -4px;
  transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

input[type="range"]::-moz-range-thumb {
  width: 9px;
  height: 9px;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
}

input[type="range"]:focus-visible {
  outline: 1px solid var(--dim);
  outline-offset: 3px;
}

.layers {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  justify-content: space-between;
}

/* Drift Line Pad */
.padbox {
  display: grid;
  gap: 8px;
  justify-items: start;
  font-size: 9px;
  letter-spacing: 0.26em;
  color: var(--faint);
}

#pad {
  width: 68px;
  height: 68px;
  display: block;
  cursor: crosshair;
  touch-action: none;
  overflow: hidden;
}

#pad:focus-visible {
  outline: 1px solid var(--dim);
  outline-offset: 4px;
}

#pad .fr {
  fill: none;
  stroke: var(--hair);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

#pad #pdSide {
  fill: var(--ink);
  opacity: 0.11;
}

#pad #pdLine {
  stroke: var(--ink);
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
}

#pad #pdStem {
  stroke: var(--dim);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

#pad #pdTip {
  fill: var(--ink);
}

#pad .end {
  fill: var(--ground);
  stroke: var(--ink);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

/* Modes & Segmented Controls */
.modes {
  display: grid;
  gap: 9px;
  justify-items: end;
}

.seg {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 9.5px;
  letter-spacing: 0.28em;
  color: var(--faint);
}

.seg button {
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
  transition: color 0.2s, border-color 0.2s;
}

.seg button.on {
  color: var(--ink);
  border-bottom-color: var(--dim);
}

.seg .sw {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--c);
  border: 0;
  padding: 0;
  display: block;
  position: relative;
  cursor: pointer;
  outline: 1px solid transparent;
  outline-offset: 3px;
  transition: outline-color 0.3s, transform 0.2s;
}

.seg .sw.on {
  outline-color: var(--dim);
}

.seg .sw:hover {
  outline-color: var(--faint);
  transform: scale(1.1);
}

.seg .sw.any {
  border: 1px dashed var(--dim);
}

.seg .sw.any input {
  position: absolute;
  inset: -4px;
  width: calc(100% + 8px);
  height: calc(100% + 8px);
  opacity: 0;
  cursor: pointer;
  padding: 0;
  border: 0;
}

#drop {
  position: fixed;
  inset: 12px;
  border: 1px solid var(--dim);
  z-index: 20;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  display: grid;
  place-items: center;
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--ink);
  background: var(--veil);
  text-align: center;
  padding: 16px;
  backdrop-filter: blur(4px);
}

body.dragging #drop {
  opacity: 1;
}

@media (min-width: 760px) {
  body::after {
    content: "";
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: calc(var(--stage-b, 170px) + 60px);
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.45s ease;
    background: linear-gradient(
      to top,
      var(--ground) 0%,
      color-mix(in srgb, var(--ground) 88%, transparent) 45%,
      transparent 100%
    );
  }

  body.sheet::after {
    opacity: 1;
  }
}

/* Mobile Bar */
.mbar {
  display: none;
}

.mrow {
  display: flex;
  gap: 10px;
  height: 50px;
}

.mbtn {
  flex: 1;
  height: 50px;
  border: 1px solid var(--hair);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 10.5px;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
  color: var(--ink);
  background: var(--veil);
  -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s;
}

.mbtn:active,
.mbtn.down {
  border-color: var(--ink);
}

#sheetBtn {
  height: 36px;
  font-size: 9.5px;
  letter-spacing: 0.34em;
  color: var(--dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

#sheetBtn .chev {
  display: inline-block;
  transition: transform 0.3s;
}

body.sheet #sheetBtn .chev {
  transform: rotate(180deg);
}

@media (max-width: 760px) {
  :root {
    --mbar-h: calc(100px + env(safe-area-inset-bottom, 0px));
  }

  .brand {
    gap: 4px;
  }

  .name {
    font-size: 13px;
    letter-spacing: 0.5em;
  }

  .status {
    display: none;
  }

  .corner {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .cjk {
    font-size: 19px;
  }

  #paper {
    width: 24px;
    height: 24px;
  }

  .rail {
    top: auto;
    bottom: calc(var(--mbar-h) + 10px);
    transform: none;
    display: flex;
    left: var(--pad);
    right: var(--pad);
    max-height: none;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    padding-top: 10px;
    height: 76px;
  }

  .pic {
    flex-direction: column;
    gap: 4px;
  }

  .mbar {
    display: grid;
    gap: 6px;
    position: fixed;
    left: var(--pad);
    right: var(--pad);
    bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    z-index: 7;
  }

  .foot {
    display: none;
  }

  body.sheet .foot {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 20px;
    left: 0;
    right: 0;
    bottom: var(--mbar-h);
    max-height: min(52dvh, calc(100dvh - var(--mbar-h) - 160px));
    overflow-y: auto;
    padding: 20px var(--pad) 34px;
    z-index: 6;
    text-shadow: none;
    font-size: 10px;
    pointer-events: auto;
    touch-action: pan-y;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  body.sheet::after {
    content: "";
    position: fixed;
    left: 0;
    right: 0;
    bottom: var(--mbar-h);
    height: var(--sheet-h, 0px);
    background: var(--ground);
    border-top: 1px solid var(--hair);
    z-index: 5;
    pointer-events: none;
  }

  .score {
    order: -1;
    flex: none;
    max-width: none;
    gap: 16px;
  }

  .sens {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  input[type="range"] {
    height: 26px;
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 15px;
    height: 15px;
    margin-top: -7px;
  }

  .layers {
    flex-direction: column;
    gap: 14px;
  }

  .modes {
    justify-items: start;
    gap: 14px;
  }

  .seg {
    flex-wrap: wrap;
    gap: 10px 12px;
  }

  .seg .sw {
    width: 20px;
    height: 20px;
  }

  #pad {
    width: 92px;
    height: 92px;
  }

  .hint {
    top: calc(var(--pad) + env(safe-area-inset-top, 0px) + 34px);
    letter-spacing: 0.3em;
    width: calc(100vw - 32px);
    max-width: none;
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ui,
  .hint,
  .pic .face,
  .toast,
  html,
  body,
  #paper svg {
    transition: none;
  }
}

/* Dedicated Album & Tagging Page */
.album-page {
  position: fixed;
  inset: 0;
  z-index: 12;
  background: rgba(5, 5, 6, 0.92);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  overflow-y: auto;
  padding: calc(var(--pad) + 64px) var(--pad) 72px;
  color: var(--ink);
}

:root[data-paper="light"] .album-page {
  background: rgba(244, 244, 241, 0.93);
}

.album-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  gap: 24px;
}

.album-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
  border-bottom: 1px solid var(--hair);
  padding-bottom: 18px;
}

.album-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.48em;
}

.album-sub {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--dim);
}

.album-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.album-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--dim);
  border: 1px solid var(--hair);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.album-btn:hover {
  color: var(--ink);
  border-color: var(--dim);
}

.album-btn.primary {
  color: var(--ground);
  background: var(--ink);
  border-color: var(--ink);
  font-weight: 500;
}

.album-btn.primary:hover {
  opacity: 0.88;
}

.album-btn.danger:hover {
  color: var(--err);
  border-color: var(--err);
}

.album-btn.small {
  padding: 5px 12px;
  font-size: 9px;
}

.album-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px 16px;
  border: 1px solid var(--hair);
  border-radius: 14px;
  background: rgba(128, 128, 128, 0.04);
}

.album-filters,
.qt-pills {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.album-quicktag {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.qt-label {
  font-size: 9.5px;
  letter-spacing: 0.26em;
  color: var(--faint);
}

.filter-pill,
.qt-pill {
  padding: 5px 11px;
  font-size: 9.5px;
  letter-spacing: 0.24em;
  color: var(--dim);
  border: 1px solid var(--hair);
  border-radius: 999px;
  transition: all 0.18s ease;
}

.filter-pill:hover,
.qt-pill:hover {
  color: var(--ink);
  border-color: var(--dim);
}

.filter-pill.on {
  color: var(--ink);
  border-color: var(--ink);
  background: rgba(236, 236, 232, 0.12);
}

.qt-pill.on {
  color: var(--ground);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 500;
}

.album-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 34px 20px;
  border: 1px dashed var(--dim);
  border-radius: 18px;
  background: rgba(236, 236, 232, 0.025);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.2s ease;
}

.album-dropzone:hover,
.album-dropzone.over {
  border-color: var(--ink);
  background: rgba(236, 236, 232, 0.06);
}

.album-dropzone.compact {
  padding: 18px 20px;
  flex-direction: row;
  gap: 14px;
}

.dz-plus {
  font-size: 26px;
  line-height: 1;
  color: var(--ink);
  font-weight: 300;
}

.dz-main {
  font-size: 11px;
  letter-spacing: 0.34em;
  color: var(--ink);
}

.dz-sub {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  gap: 18px;
}

.album-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--hair);
  border-radius: 14px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.album-card:hover {
  border-color: var(--dim);
}

.album-card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: #0b0b0d;
  overflow: hidden;
  cursor: pointer;
}

.album-card-media img,
.album-card-media canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.album-card-media:hover img,
.album-card-media:hover canvas {
  transform: scale(1.03);
}

.card-top-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  left: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.card-open-3d,
.card-del {
  pointer-events: auto;
  padding: 4px 9px;
  font-size: 8.5px;
  letter-spacing: 0.22em;
  color: #ecece8;
  background: rgba(5, 5, 6, 0.76);
  border: 1px solid rgba(236, 236, 232, 0.24);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0.86;
  transition: opacity 0.18s ease, border-color 0.18s ease;
}

.card-open-3d:hover,
.card-del:hover {
  opacity: 1;
  border-color: #ecece8;
}

.card-del:hover {
  color: #e7a39b;
  border-color: #e7a39b;
}

.album-card-body {
  padding: 12px;
  display: grid;
  gap: 9px;
}

.card-name {
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.card-tag-btn {
  padding: 4px 8px;
  font-size: 8.5px;
  letter-spacing: 0.22em;
  color: var(--faint);
  border: 1px solid var(--hair);
  border-radius: 999px;
  transition: all 0.15s ease;
}

.card-tag-btn:hover {
  color: var(--ink);
  border-color: var(--dim);
}

.card-tag-btn.on {
  color: var(--ground);
  background: var(--ink);
  border-color: var(--ink);
  font-weight: 500;
}