/* ======================================================================================================
   Tactility: every control answers back. Hard print-offset shadows that collapse on press, stepped (not eased)
   motion, red slabs sweeping in. Superhot paper-and-ink, Overwatch-menu responsiveness.
   ====================================================================================================== */
:root {
  --step: steps(3, end);
  --shadow: 4px 4px 0 var(--ink);
}
.btn,
.back {
  position: relative;
  box-shadow: var(--shadow);
  transition:
    transform 0.09s var(--step),
    box-shadow 0.09s var(--step),
    background 0.08s,
    color 0.08s;
}
.btn:hover,
.back:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}
.btn:active,
.back:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--ink);
  transition-duration: 0.03s;
}
.btn.alt {
  background: var(--paper);
}
.btn.alt:hover {
  background: var(--ink);
}
.btn::after,
.back::after {
  content: '';
  position: absolute;
  right: 6px;
  top: 6px;
  width: 5px;
  height: 5px;
  background: currentColor;
  opacity: 0;
  transform: scale(0);
  transition:
    transform 0.1s var(--step),
    opacity 0.1s;
}
.btn:hover::after,
.back:hover::after {
  opacity: 0.85;
  transform: scale(1);
}

.mn-list button {
  transition:
    padding 0.18s var(--step),
    color 0.1s,
    transform 0.08s var(--step);
}
.mn-list button::after {
  content: '';
  position: absolute;
  right: 8px;
  top: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  border: solid currentColor;
  border-width: 4px 4px 0 0;
  transform: translateX(-24px) rotate(45deg);
  opacity: 0;
  transition:
    transform 0.2s var(--step),
    opacity 0.12s;
}
.mn-list button:hover::after,
.mn-list button:focus-visible::after {
  opacity: 1;
  transform: translateX(0) rotate(45deg);
}
.mn-list button:focus-visible {
  color: #fff;
  padding-left: 16px;
  outline: 0;
}
.mn-list button:focus-visible::before {
  transform: none;
}
.mn-list button:active {
  transform: translateX(8px) scale(0.99);
}
.mn-list button em {
  font: 700 11px var(--mono);
  font-style: normal;
  letter-spacing: 0.16em;
  background: var(--red);
  color: #fff;
  padding: 3px 7px;
  margin-left: 12px;
  vertical-align: middle;
}
.mn-list button em:empty {
  display: none;
}
.mn-list button:hover em {
  background: #fff;
  color: var(--red);
}

.card {
  position: relative;
  transition: background 0.12s;
}
.card:hover {
  background: rgba(255, 42, 29, 0.07);
}
.card:hover .ico::after {
  width: 18px;
  height: 18px;
  right: 3px;
  top: 3px;
}
.ico::after {
  transition:
    width 0.15s var(--step),
    height 0.15s var(--step),
    right 0.15s var(--step),
    top 0.15s var(--step);
}

.row {
  position: relative;
  transition:
    background 0.1s,
    box-shadow 0.1s;
}
.row:hover {
  background: rgba(12, 12, 15, 0.045);
  box-shadow: inset 5px 0 0 var(--red);
}
.row label {
  transition: transform 0.14s var(--step);
}
.row:hover label {
  transform: translateX(10px);
}

input[type='range']::-webkit-slider-runnable-track {
  background: linear-gradient(90deg, var(--red) calc(var(--k, 0.5) * 100%), var(--ink) 0);
  height: 4px;
}
input[type='range']::-moz-range-progress {
  background: var(--red);
  height: 4px;
}
input[type='range']::-moz-range-track {
  background: var(--ink);
  height: 4px;
}
input[type='range']::-webkit-slider-thumb {
  transition:
    transform 0.1s var(--step),
    background 0.1s;
  margin-top: -12px;
}
input[type='range']::-moz-range-thumb {
  transition: transform 0.1s var(--step);
}
input[type='range']:hover::-webkit-slider-thumb {
  transform: scale(1.3, 1.1);
}
input[type='range']:active::-webkit-slider-thumb {
  transform: scale(1.5, 1.2);
  background: var(--ink);
}
input[type='range']:hover::-moz-range-thumb {
  transform: scale(1.3, 1.1);
}
input[type='range']:active::-moz-range-thumb {
  transform: scale(1.5, 1.2);
  background: var(--ink);
}
.rg output.blip {
  animation: blip 0.16s var(--step);
}
@keyframes blip {
  from {
    transform: translateY(-3px) scale(1.3);
    color: var(--red);
  }
  to {
    transform: none;
  }
}

.tg {
  transition:
    background 0.1s,
    box-shadow 0.1s;
}
.tg::after {
  transition:
    transform 0.14s var(--step),
    background 0.1s,
    width 0.08s;
}
.tg:hover {
  box-shadow: 3px 3px 0 var(--ink);
}
.tg:active::after {
  width: 28px;
}
.tg.on:active::after {
  transform: translateX(26px);
}
.seg button {
  transition:
    background 0.08s,
    color 0.08s,
    transform 0.08s var(--step);
}
.seg button:hover:not(.on) {
  background: rgba(12, 12, 15, 0.09);
}
.seg button:active {
  transform: scale(0.94);
}
.seg button.on {
  animation: snap 0.18s var(--step);
}
@keyframes snap {
  from {
    transform: scale(1.12);
    background: var(--red);
  }
  to {
    transform: none;
  }
}

/* screens build in row by row */
.scr.on .pn-head,
.scr.on .mn-list button,
.scr.on .stack > *,
.scr.on .cal-t {
  animation: rowin 0.28s var(--step) both;
}
.scr.on .pn-body > *,
.scr.on .lk-grid.in > * {
  animation: rowin 0.3s var(--step) both;
  animation-delay: calc(var(--n, 0) * 22ms);
}
.scr.on .mn-list button:nth-child(2) {
  animation-delay: 40ms;
}
.scr.on .mn-list button:nth-child(3) {
  animation-delay: 80ms;
}
.scr.on .mn-list button:nth-child(4) {
  animation-delay: 120ms;
}
.scr.on .stack > :nth-child(2) {
  animation-delay: 40ms;
}
.scr.on .stack > :nth-child(3) {
  animation-delay: 80ms;
}
.scr.on .stack > :nth-child(4) {
  animation-delay: 120ms;
}
.scr.on .stack > :nth-child(5) {
  animation-delay: 160ms;
}
@keyframes rowin {
  from {
    opacity: 0;
    transform: translateX(-26px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---- HUD: camera button, toast, crosshair ---- */
#hv {
  display: none;
  position: absolute;
  top: calc(max(14px, env(safe-area-inset-top)) + 54px);
  right: max(18px, env(safe-area-inset-right));
  width: 46px;
  height: 34px;
  background: var(--paper);
  border: 2px solid var(--ink);
  pointer-events: auto;
  padding: 0;
  align-items: center;
  justify-content: center;
  box-shadow: 3px 3px 0 var(--ink);
}
#hv:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}
#hv i {
  font: 800 13px var(--mono);
  font-style: normal;
  letter-spacing: 0.06em;
}
body[data-view='first'] #hv i::after {
  content: '1P';
}
body[data-view='third'] #hv i::after {
  content: '3P';
  color: var(--red);
}
@media (pointer: coarse) {
  #hv {
    display: flex;
  }
  #fxm {
    display: none;
  }
}
#toast {
  position: absolute;
  left: 0;
  right: 0;
  top: 16%;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
#toast-t {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  font: 900 clamp(22px, 5vw, 38px) / 1 var(--disp);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 16px 6px;
  border-left: 8px solid var(--red);
  opacity: 0;
}
#toast-t.on {
  animation: toast 2.2s forwards;
}
@keyframes toast {
  0% {
    opacity: 0;
    transform: translateX(-40px) scale(1.2);
  }
  8% {
    opacity: 1;
    transform: none;
  }
  85% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-8px);
  }
}

.xh {
  --c: #0c0c0f;
  --o: rgba(255, 255, 255, 0.85);
  --g: calc((5px + var(--k, 0) * 10px) * var(--xs, 1));
  --l: calc(9px * var(--xs, 1));
  --t: calc(2px * var(--xs, 1));
  position: fixed;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  pointer-events: none;
  opacity: 0;
  z-index: 31;
  transition: transform 0.1s var(--step);
}
.xh.on {
  opacity: 1;
}
.xh[data-c='red'] {
  --c: #ff2a1d;
  --o: rgba(12, 12, 15, 0.9);
}
.xh[data-c='white'] {
  --c: #fff;
  --o: rgba(12, 12, 15, 0.9);
}
.xh[data-c='auto'] {
  --c: #fff;
  --o: transparent;
  mix-blend-mode: difference;
}
.xh b {
  position: absolute;
  background: var(--c);
  box-shadow: 0 0 0 1px var(--o);
}
.xh .xa {
  width: var(--t);
  height: var(--l);
  left: calc(var(--t) / -2);
  top: calc(-1 * (var(--g) + var(--l)));
}
.xh .xb {
  width: var(--t);
  height: var(--l);
  left: calc(var(--t) / -2);
  top: var(--g);
}
.xh .xc {
  height: var(--t);
  width: var(--l);
  top: calc(var(--t) / -2);
  left: calc(-1 * (var(--g) + var(--l)));
}
.xh .xd {
  height: var(--t);
  width: var(--l);
  top: calc(var(--t) / -2);
  left: var(--g);
}
.xh i {
  position: absolute;
  width: calc(3px * var(--xs, 1));
  height: calc(3px * var(--xs, 1));
  left: calc(var(--xs, 1) * -1.5px);
  top: calc(var(--xs, 1) * -1.5px);
  background: var(--c);
  box-shadow: 0 0 0 1px var(--o);
}
.xh[data-s='dot'] b {
  display: none;
}
.xh[data-s='dot'] i {
  width: calc(5px * var(--xs, 1));
  height: calc(5px * var(--xs, 1));
  left: calc(var(--xs, 1) * -2.5px);
  top: calc(var(--xs, 1) * -2.5px);
}
.xh[data-s='ring'] b {
  display: none;
}
.xh[data-s='ring'] i {
  width: calc(20px * var(--xs, 1));
  height: calc(20px * var(--xs, 1));
  left: calc(var(--xs, 1) * -10px);
  top: calc(var(--xs, 1) * -10px);
  background: none;
  border: calc(2px * var(--xs, 1)) solid var(--c);
  transform: rotate(45deg) scale(calc(1 + var(--k, 0) * 0.5));
}
.xh.jump {
  transform: scale(1.5);
}
.xh.slide {
  transform: scale(1.25, 0.6);
}
.xh.dash {
  transform: scale(1.7, 0.9);
}
.xh.turn {
  transform: rotate(90deg) scale(1.2);
}
.xh.hit {
  transform: rotate(45deg) scale(1.35);
  --c: #ff2a1d;
}
body.locked {
  cursor: none;
}

/* ---- desktop cursor effect ---- */
#fxm {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 95;
}
body.fx,
body.fx * {
  cursor: none !important;
}

/* ---- calibration ---- */
#calib {
  justify-content: flex-start;
}
.cal-head {
  display: flex;
  justify-content: space-between;
  width: 100%;
  margin-bottom: auto;
}
#calib .cal-t {
  margin-top: 14px;
}
.cal-beat {
  display: none;
  margin: 0 0 18px;
}
#calib[data-phase='count'] .cal-beat,
#calib[data-phase='collect'] .cal-beat,
#calib[data-phase='retry'] .cal-beat {
  display: block;
}
#cal-word {
  display: block;
  font: 900 clamp(60px, 20vw, 190px) / 0.85 var(--disp);
  text-transform: uppercase;
  color: var(--red);
  min-height: 0.85em;
}
#cal-word.b {
  animation: slam 0.2s var(--step);
}
.cal-pips {
  display: flex;
  gap: 6px;
  margin-top: 14px;
}
.cal-pips i {
  width: 34px;
  height: 8px;
  background: rgba(12, 12, 15, 0.18);
}
.cal-pips i.done {
  background: var(--ink);
}
.cal-pips i.now {
  background: var(--red);
}
.cal-lamps {
  display: none;
  margin: 0 0 18px;
  max-width: 420px;
}
#calib.practice .cal-lamps {
  display: flex;
}
.lamps span {
  transition:
    background 0.06s,
    transform 0.1s var(--step);
}
.lamps span.hit {
  transform: translateY(-3px) scale(1.08);
}

/* quick settings under the pause buttons */
.quick {
  width: min(320px, 100%);
  margin-top: 14px;
}
.quick .row {
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 8px 0;
}
.quick .row label {
  font-size: 10px;
}

/* ---- locker ---- */
.locker {
  background: linear-gradient(90deg, rgba(236, 235, 230, 0.97) 0, rgba(236, 235, 230, 0.93) 36%, rgba(236, 235, 230, 0) 62%);
  flex-direction: row;
  justify-content: space-between;
}
.lk-left {
  width: min(500px, 100%);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.lk-tabs {
  margin: 10px 0 8px;
}
.lk-tabs button {
  font-size: 13px;
  padding: 11px 4px;
}
.lk-note {
  text-transform: none;
  letter-spacing: 0.04em;
  line-height: 1.5;
  min-height: 3.2em;
  margin: 4px 0 8px;
}
.lk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
  gap: 10px;
  overflow-y: auto;
  flex: 1;
  padding: 8px 8px 24px 2px;
  touch-action: pan-y;
  overscroll-behavior: contain;
}
.lk-item {
  position: relative;
  text-align: left;
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 10px 10px 8px;
  min-height: 92px;
  box-shadow: 3px 3px 0 var(--ink);
  transition:
    transform 0.09s var(--step),
    box-shadow 0.09s var(--step),
    background 0.08s;
}
.lk-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}
.lk-item:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--ink);
}
.lk-item b {
  display: block;
  font: 900 26px/0.95 var(--disp);
  text-transform: uppercase;
}
.lk-item small {
  display: block;
  margin-top: 6px;
  font: 700 10px var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
}
.lk-item .sw {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}
.lk-item .sw i {
  width: 22px;
  height: 14px;
  border: 2px solid var(--ink);
}
.lk-item.sel {
  border-color: var(--red);
  box-shadow: 3px 3px 0 var(--red);
}
.lk-item.eq {
  background: var(--ink);
  color: #fff;
}
.lk-item.eq small {
  color: var(--red);
  opacity: 1;
}
.lk-item.locked {
  background: repeating-linear-gradient(135deg, var(--paper) 0 8px, rgba(12, 12, 15, 0.07) 8px 10px);
}
.lk-item.locked b {
  opacity: 0.55;
}
.lk-item.new::after {
  content: 'NEW';
  position: absolute;
  top: -8px;
  right: -6px;
  background: var(--red);
  color: #fff;
  font: 800 10px var(--mono);
  letter-spacing: 0.12em;
  padding: 3px 6px;
}
.lk-foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  opacity: 0.7;
  padding-top: 6px;
  border-top: 2px solid var(--ink);
}
.lk-hint {
  align-self: flex-end;
  opacity: 0.6;
}
@media (max-aspect-ratio: 1/1) {
  .locker {
    background: linear-gradient(0deg, rgba(236, 235, 230, 0.97) 0, rgba(236, 235, 230, 0.94) 54%, rgba(236, 235, 230, 0) 64%);
    align-items: flex-end;
  }
  .lk-left {
    height: 58%;
  }
  .lk-left .pn-head {
    padding-bottom: 4px;
  }
  .lk-left .pn-head h2 {
    font-size: clamp(36px, 9vw, 60px);
  }
  .lk-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scr.on .pn-head,
  .scr.on .mn-list button,
  .scr.on .stack > *,
  .scr.on .cal-t,
  .scr.on .pn-body > *,
  .scr.on .lk-grid.in > * {
    animation: none;
  }
  .seg button.on,
  .rg output.blip {
    animation: none;
  }
}

.xh-demo {
  position: relative;
  height: 110px;
  margin: 8px 0;
  border: 2px solid var(--ink);
  background: repeating-linear-gradient(135deg, var(--paper) 0 10px, rgba(12, 12, 15, 0.05) 10px 12px);
}
.xh-demo .xh {
  position: absolute;
}

/* short screens (landscape phones, small windows): keep the whole menu on screen */
.mn-title {
  font-size: clamp(64px, min(25vw, 23vh), 250px);
}
@media (max-height: 560px) {
  .mn-title {
    margin-bottom: 10px;
  }
  .mn-list button {
    padding: 8px 0;
    font-size: clamp(22px, min(6.4vw, 7.5vh), 40px);
  }
  .mn-list button.main {
    font-size: clamp(30px, min(10vw, 11vh), 58px);
  }
  .mn-kicker {
    margin-bottom: 4px;
  }
}

/* touch screens have no real hover: do not leave controls displaced after a tap */
@media (hover: none) {
  .btn:hover,
  .back:hover,
  .lk-item:hover {
    transform: none;
    box-shadow: var(--shadow);
  }
  .btn.alt:hover {
    background: var(--paper);
    color: var(--ink);
  }
  .btn:hover::after,
  .back:hover::after {
    opacity: 0;
    transform: scale(0);
  }
  .row:hover {
    background: none;
    box-shadow: none;
  }
  .row:hover label {
    transform: none;
  }
  .card:hover {
    background: none;
  }
  .tg:hover {
    box-shadow: none;
  }
  .mn-list button:hover {
    color: var(--ink);
    padding-left: 0;
  }
  .mn-list button:hover::before {
    transform: translateX(-101%);
  }
  .mn-list button:hover::after {
    opacity: 0;
  }
}
@media (hover: none) {
  /* the press itself still gets the full red slab */
  .mn-list button:active {
    color: #fff;
    padding-left: 16px;
  }
  .mn-list button:active::before {
    transform: none;
  }
  .mn-list button:active::after {
    opacity: 1;
    transform: translateX(0) rotate(45deg);
  }
}