/* Time Architect — original visual identity.
   Ink-stone chambers, brass clockwork, cyan chrono light. */

:root {
  --ink: #05080e;
  --ink-2: #0a121c;
  --ink-3: #101b28;
  --line: rgba(120, 170, 210, 0.16);
  --line-strong: rgba(140, 200, 240, 0.32);
  --text: #e8f0f8;
  --text-dim: #9fb2c4;
  --text-faint: #6d8093;
  --cyan: #6fe6ff;
  --cyan-soft: rgba(111, 230, 255, 0.16);
  --brass: #ffc76b;
  --brass-soft: rgba(255, 199, 107, 0.16);
  --danger: #ff6b80;
  --ok: #8bffc8;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  --font-ui: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --tap: 46px;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-ui);
  overscroll-behavior: none;
}

body {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html[lang="ja"] {
  --font-display: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
}

html[lang="ar"] {
  --font-display: "Noto Naskh Arabic", "Traditional Arabic", "Segoe UI", serif;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

#app {
  position: fixed;
  inset: 0;
  overflow: hidden;
  isolation: isolate;
}

#stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.layer {
  position: absolute;
  inset: 0;
  display: flex;
  overflow-y: auto;
  overscroll-behavior: contain;
  z-index: 5;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 199, 107, 0.26) transparent;
}

.layer::-webkit-scrollbar {
  width: 8px;
}

.layer::-webkit-scrollbar-track {
  background: transparent;
}

.layer::-webkit-scrollbar-thumb {
  border-radius: 999px;
  border: 2px solid transparent;
  background: rgba(255, 199, 107, 0.24);
  background-clip: padding-box;
}

.layer::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 199, 107, 0.42);
  background-clip: padding-box;
}

.layer:empty {
  display: none;
}

/* A screen is open: keep the chamber as a quiet backdrop, never as competition
   for the text. */
.layer:not(:empty) {
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(5, 8, 14, 0.78), rgba(5, 8, 14, 0.94) 70%),
    rgba(5, 8, 14, 0.7);
  backdrop-filter: blur(7px) saturate(0.8);
  -webkit-backdrop-filter: blur(7px) saturate(0.8);
}

/* The title is the shop window: a little ambient clockwork light keeps it from
   reading as an empty black page while the menu stays perfectly legible. */
body[data-screen="title"] .layer:not(:empty) {
  background:
    radial-gradient(90% 62% at 50% 16%, rgba(15, 32, 48, 0.62), rgba(5, 8, 14, 0.9) 72%),
    rgba(5, 8, 14, 0.62);
}

body[data-screen="title"] .layer:not(:empty)::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(30% 22% at 50% 24%, rgba(111, 230, 255, 0.16), transparent 72%),
    radial-gradient(44% 32% at 50% 26%, rgba(255, 199, 107, 0.07), transparent 78%),
    repeating-radial-gradient(circle at 50% 30%, rgba(255, 199, 107, 0.075) 0 1px, transparent 1px 84px);
  -webkit-mask-image: radial-gradient(62% 52% at 50% 30%, #000 10%, transparent 78%);
  mask-image: radial-gradient(62% 52% at 50% 30%, #000 10%, transparent 78%);
}

body[data-screen="title"] .screen {
  position: relative;
  z-index: 1;
}

/* ---------- boot ---------- */

.boot {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  background:
    radial-gradient(46% 34% at 50% 42%, rgba(111, 230, 255, 0.1), transparent 72%),
    radial-gradient(70% 55% at 50% 38%, rgba(255, 199, 107, 0.05), transparent 76%),
    #05080e;
  transition: opacity 0.42s ease, visibility 0.42s ease;
}

.boot--done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.boot__mark {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  filter: drop-shadow(0 0 30px rgba(111, 230, 255, 0.24));
}

.boot__title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(180deg, #fff8ea, var(--brass) 62%, #a9743a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.boot__line {
  width: 128px;
  height: 2px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.boot__line i {
  display: block;
  width: 46%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
  animation: boot-scan 1.5s ease-in-out infinite;
}

.boot__studio {
  margin: 0;
  color: var(--text-faint);
  font-size: 0.66rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

@keyframes boot-scan {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(260%); }
}

@media (prefers-reduced-motion: reduce) {
  .boot__line i {
    animation: none;
  }
}

/* ---------- iconography ---------- */

.icon {
  display: block;
  width: 20px;
  height: 20px;
  flex: none;
  pointer-events: none;
}

.btn .icon { width: 18px; height: 18px; }
.iconbtn .icon { width: 20px; height: 20px; }
.iconbtn--sm .icon { width: 16px; height: 16px; }
.rate .icon { width: 22px; height: 22px; }
.pad__btn .icon { width: 16px; height: 16px; }
.objchip .icon { width: 20px; height: 20px; }
.hintcard__icon .icon { width: 18px; height: 18px; }
.levelcard__lock .icon { width: 18px; height: 18px; }
html[dir="rtl"] .icon--back { transform: scaleX(-1); }

/* Physical controls keep their physical order in RTL: the left arrow belongs
   on the left and the timeline reads rewind → fast-forward. */
html[dir="rtl"] .pad,
html[dir="rtl"] .rates {
  direction: ltr;
}

/* In RTL the time cluster sits on the outer (left) side of the deck. */
html[dir="rtl"] .rates {
  justify-content: start;
}

/* ---------- shared type ---------- */

.display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 0.98;
}

.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0;
}

.screen {
  width: min(1040px, 100%);
  margin: auto;
  padding: clamp(20px, 4vw, 48px);
  padding-top: max(clamp(20px, 4vw, 48px), env(safe-area-inset-top));
  padding-bottom: max(clamp(20px, 4vw, 48px), env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 3vw, 30px);
  animation: screen-in 0.4s ease both;
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.screen--center {
  align-items: center;
  text-align: center;
}

.screen__head {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
}

.screen__title {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  margin: 0;
}

.screen__lead {
  max-width: 56ch;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0;
}

/* ---------- title ---------- */

.hero {
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
  padding-top: clamp(8px, 6vh, 60px);
}

.hero__mark {
  width: 84px;
  height: 84px;
  margin-bottom: 6px;
  filter: drop-shadow(0 0 26px rgba(111, 230, 255, 0.28));
  animation: mark-turn 46s linear infinite;
}

@keyframes mark-turn {
  to {
    transform: rotate(360deg);
  }
}

.hero__title {
  font-size: clamp(2.9rem, 11vw, 6rem);
  margin: 0;
  background: linear-gradient(180deg, #fff8ea 8%, var(--brass) 62%, #a9743a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tag {
  color: var(--text-dim);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.72rem;
  margin: 0;
}

.hero__studio {
  color: var(--text-faint);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.progress {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.85rem;
  justify-content: center;
}

.progress__bar {
  width: min(220px, 40vw);
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--brass));
  border-radius: inherit;
  transition: width 0.5s ease;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: var(--tap);
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(12, 22, 33, 0.72);
  color: var(--text);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease;
}

.btn:hover {
  border-color: rgba(111, 230, 255, 0.5);
  background: rgba(18, 34, 48, 0.9);
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  border-color: rgba(255, 199, 107, 0.55);
  background: linear-gradient(180deg, rgba(255, 199, 107, 0.2), rgba(255, 199, 107, 0.06));
  color: #fff6e2;
  box-shadow: 0 10px 34px rgba(255, 176, 79, 0.16);
}

.btn--primary:hover {
  border-color: var(--brass);
  background: linear-gradient(180deg, rgba(255, 199, 107, 0.3), rgba(255, 199, 107, 0.1));
}

.btn--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--text-dim);
}

.btn--ghost:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.btn--wide {
  width: 100%;
}

.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.menu {
  display: grid;
  gap: 10px;
  width: min(420px, 100%);
  margin: 6px auto 0;
}

.menu .btn {
  justify-content: flex-start;
  padding-inline: 22px;
  font-size: 1rem;
}

.menu .btn--primary {
  justify-content: center;
}

.screen__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  color: var(--text-faint);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

/* ---------- panels & lists ---------- */

.panel {
  background: linear-gradient(180deg, rgba(14, 24, 36, 0.92), rgba(8, 14, 22, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(16px, 3vw, 26px);
  backdrop-filter: blur(12px);
}

.stack {
  display: grid;
  gap: 14px;
}

.row {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
  min-height: 54px;
  padding-block: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.row:last-child {
  border-bottom: 0;
}

.row__label {
  display: grid;
  gap: 3px;
  text-align: start;
}

.row__label strong {
  font-weight: 600;
  font-size: 0.96rem;
}

.row__hint {
  font-size: 0.76rem;
  color: var(--text-faint);
}

/* ---------- language ---------- */

.langgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.lang {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  min-height: 62px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.75);
  text-align: start;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.lang:hover {
  border-color: rgba(111, 230, 255, 0.45);
  background: rgba(16, 30, 42, 0.9);
}

.lang[aria-pressed="true"] {
  border-color: var(--brass);
  background: rgba(255, 199, 107, 0.08);
}

.lang__name {
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.flag {
  width: 34px;
  height: 23px;
  border-radius: 3px;
  object-fit: cover;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12);
  flex: none;
}

/* ---------- level select ---------- */

.levels {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}

.levelcard {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.8);
  text-align: start;
  min-height: 112px;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.levelcard:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(111, 230, 255, 0.45);
  background: rgba(16, 30, 42, 0.92);
}

.levelcard__num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--brass);
}

.levelcard__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.1;
}

.levelcard__sub {
  font-size: 0.8rem;
  color: var(--text-faint);
}

.levelcard__meta {
  margin-top: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.levelcard--done {
  border-color: rgba(139, 255, 200, 0.3);
}

.levelcard--done .levelcard__meta {
  color: var(--ok);
}

.levelcard:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.levelcard__lock {
  position: absolute;
  inset-inline-end: 16px;
  inset-block-start: 16px;
  color: var(--text-faint);
  display: grid;
  place-items: center;
}

.studio {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(18, 36, 52, 0.85), rgba(7, 13, 21, 0.9));
}

.studio__logo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(111, 230, 255, 0.18), 0 12px 30px rgba(0, 0, 0, 0.45);
  flex: none;
}

.studio__copy {
  display: grid;
  gap: 6px;
}

/* ---------- settings ---------- */

.toggle {
  position: relative;
  width: 54px;
  height: 30px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--line);
  flex: none;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.toggle::after {
  content: "";
  position: absolute;
  inset-block-start: 3px;
  inset-inline-start: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: transform 0.18s ease, background 0.18s ease;
}

.toggle[aria-checked="true"] {
  background: rgba(111, 230, 255, 0.25);
  border-color: rgba(111, 230, 255, 0.55);
}

.toggle[aria-checked="true"]::after {
  transform: translateX(24px);
  background: var(--cyan);
}

html[dir="rtl"] .toggle[aria-checked="true"]::after {
  transform: translateX(-24px);
}

.seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  flex: none;
}

.seg button {
  padding: 8px 14px;
  min-height: 38px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.seg button[aria-pressed="true"] {
  background: rgba(111, 230, 255, 0.16);
  color: var(--text);
}

.langrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.langchip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.7);
  font-size: 0.85rem;
}

.langchip[aria-pressed="true"] {
  border-color: var(--brass);
  background: var(--brass-soft);
}

.langchip .flag {
  width: 24px;
  height: 16px;
}

/* ---------- how to play ---------- */

.steps {
  display: grid;
  gap: 14px;
  counter-reset: step;
}

.step {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  color: var(--text-dim);
  line-height: 1.5;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  color: var(--brass);
  font-family: var(--font-display);
  font-size: 0.9rem;
}

/* ---------- HUD ---------- */

.hud {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  pointer-events: none;
  z-index: 3;
}

.hud__top {
  grid-row: 1;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 12px clamp(12px, 2.4vw, 24px);
  padding-top: max(12px, env(safe-area-inset-top));
  background: linear-gradient(180deg, rgba(3, 6, 11, 0.94), rgba(3, 6, 11, 0));
  pointer-events: auto;
}

.hud__top::after {
  content: "";
  position: absolute;
  inset-inline: 4%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 199, 107, 0.28), rgba(111, 230, 255, 0.22), transparent);
  pointer-events: none;
}

.hud__titles {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.hud__level {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.4vw, 1.28rem);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud__sub {
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hud__stats {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

.stat {
  font-variant-numeric: tabular-nums;
  backdrop-filter: blur(8px);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 22, 0.7);
  white-space: nowrap;
}

.stat--muted {
  color: var(--text-faint);
}

.stat--anchor {
  color: var(--brass);
  border-color: rgba(255, 199, 107, 0.3);
}

.hud__tools {
  display: flex;
  gap: 8px;
}

.iconbtn {
  display: grid;
  place-items: center;
  width: var(--tap);
  height: var(--tap);
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(8, 14, 22, 0.75);
  color: var(--text);
  font-size: 1.05rem;
  line-height: 1;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.12s ease;
}

.iconbtn:hover {
  border-color: rgba(111, 230, 255, 0.45);
  background: rgba(16, 30, 42, 0.9);
}

.iconbtn:active {
  transform: scale(0.94);
}

.iconbtn:disabled {
  opacity: 0.35;
}

.iconbtn--sm {
  width: 34px;
  height: 34px;
  font-size: 0.8rem;
}

.hud__bottom {
  grid-row: 3;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: end;
  gap: 14px;
  padding: 18px clamp(12px, 2.4vw, 24px);
  padding-bottom: max(18px, env(safe-area-inset-bottom));
  background: linear-gradient(0deg, rgba(3, 6, 11, 0.95), rgba(3, 6, 11, 0));
  pointer-events: auto;
}

.pad {
  display: grid;
  grid-template-columns: repeat(3, 48px);
  grid-template-rows: repeat(3, 44px);
  gap: 4px;
}

.pad__btn {
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(10, 18, 27, 0.8);
  color: var(--text-dim);
  font-size: 0.85rem;
  touch-action: manipulation;
}

.pad__btn:active {
  background: rgba(111, 230, 255, 0.18);
  color: var(--text);
}

.pad__btn--up {
  grid-area: 1 / 2;
}

.pad__btn--left {
  grid-area: 2 / 1;
}

.pad__btn--wait {
  grid-area: 2 / 2;
}

.pad__btn--right {
  grid-area: 2 / 3;
}

.pad__btn--down {
  grid-area: 3 / 2;
}

.objects {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
  overscroll-behavior-x: contain;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6px, #000 calc(100% - 14px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 6px, #000 calc(100% - 14px), transparent 100%);
}

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

.objchip {
  display: grid;
  scroll-snap-align: start;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  min-width: 148px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 22, 0.82);
  text-align: start;
  flex: none;
}

.objchip[aria-selected="true"] {
  border-color: rgba(255, 199, 107, 0.6);
  background: rgba(255, 199, 107, 0.08);
}

.objchip__icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  font-size: 0.85rem;
}

.objchip__name {
  display: block;
  font-size: 0.8rem;
  white-space: nowrap;
}

.objchip__meta {
  display: block;
  font-size: 0.68rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.rates {
  display: flex;
  gap: 6px;
  align-items: center;
}

.rate {
  display: grid;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  gap: 2px;
  place-items: center;
  min-width: 58px;
  min-height: 58px;
  padding: 6px 8px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 22, 0.82);
  color: var(--text-dim);
  transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.rate__icon {
  font-size: 1rem;
  line-height: 1;
}

.rate__label {
  font-size: 0.62rem;
  letter-spacing: 0.04em;
}

.rate:hover:not(:disabled) {
  border-color: rgba(111, 230, 255, 0.4);
  color: var(--text);
}

.rate[aria-pressed="true"] {
  border-color: var(--brass);
  background: rgba(255, 199, 107, 0.12);
  color: #fff3dc;
}

.rate:disabled {
  opacity: 0.4;
}

.hintcard {
  position: absolute;
  inset-inline: 50%;
  transform: translateX(-50%);
  inset-block-start: calc(96px + env(safe-area-inset-top));
  width: min(560px, calc(100% - 24px));
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 199, 107, 0.32);
  background: rgba(9, 15, 23, 0.95);
  box-shadow: var(--shadow);
  pointer-events: auto;
  animation: hint-in 0.3s ease both;
}

@keyframes hint-in {
  from {
    opacity: 0;
    transform: translate(-50%, -8px);
  }
}

.hintcard__icon {
  color: var(--brass);
  font-size: 1rem;
  line-height: 1.4;
}

.hintcard__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text-dim);
  flex: 1;
}

html[dir="rtl"] .hintcard {
  transform: translateX(50%);
}

.toast {
  position: absolute;
  inset-inline: 50%;
  transform: translateX(-50%);
  inset-block-end: calc(190px + env(safe-area-inset-bottom));
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 107, 128, 0.4);
  background: rgba(30, 10, 16, 0.95);
  color: #ffd7de;
  font-size: 0.82rem;
  max-width: calc(100% - 32px);
  text-align: center;
  pointer-events: none;
  z-index: 8;
}

html[dir="rtl"] .toast {
  transform: translateX(50%);
}

.banner {
  position: absolute;
  inset-inline: 50%;
  transform: translateX(-50%);
  inset-block-end: calc(150px + env(safe-area-inset-bottom));
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2rem);
  color: var(--brass);
  text-shadow: 0 4px 26px rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

/* ---------- modals ---------- */

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(3, 6, 11, 0.66);
  z-index: 7;
  animation: fade-in 0.2s ease both;
}

/* A dialog pauses play; keep the chamber visible as context instead of
   stacking two blur layers (which some Android WebView builds render black). */
.layer[data-modal="true"] {
  background: rgba(3, 6, 11, 0.26);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
}

.modal__panel {
  width: min(520px, 100%);
  max-height: calc(100vh - 36px);
  overflow-y: auto;
  display: grid;
  gap: 16px;
  padding: clamp(20px, 4vw, 30px);
  border-radius: 20px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(16, 27, 40, 0.98), rgba(7, 12, 19, 0.99));
  box-shadow: var(--shadow);
  animation: modal-in 0.26s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }
}

.modal__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin: 0;
}

.modal__text {
  margin: 0;
  color: var(--text-dim);
  line-height: 1.5;
}

.modal__stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.modal__actions {
  display: grid;
  gap: 8px;
}

.modal__actions .btn {
  justify-content: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(139, 255, 200, 0.35);
  background: rgba(139, 255, 200, 0.1);
  color: var(--ok);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
}

.badge--danger {
  border-color: rgba(255, 107, 128, 0.4);
  background: rgba(255, 107, 128, 0.1);
  color: var(--danger);
}

/* ---------- utility panels ---------- */

.note {
  color: var(--text-faint);
  font-size: 0.78rem;
  line-height: 1.5;
  margin: 0;
}

.keys {
  display: none;
  gap: 10px;
  color: var(--text-faint);
  font-size: 0.72rem;
  letter-spacing: 0.015em;
  justify-content: center;
  text-align: center;
  white-space: nowrap;
}

kbd {
  display: inline-block;
  min-width: 20px;
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  font-family: inherit;
  font-size: 0.72rem;
  text-align: center;
}

/* ---------- responsive ---------- */

@media (min-width: 900px) and (hover: hover) {
  .keys {
    display: flex;
    grid-column: 2;
    justify-self: center;
  }

  .pad {
    display: none;
  }

  .hud__bottom {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .hud__bottom .objects {
    grid-column: 1;
  }

  .hud__bottom .rates {
    grid-column: 3;
  }
}

@media (max-width: 720px) {
  .hud__top {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "titles tools"
      "stats stats";
    row-gap: 8px;
  }

  .iconbtn {
    width: 42px;
    height: 42px;
  }

  .hud__titles {
    grid-area: titles;
  }

  .hud__tools {
    grid-area: tools;
    gap: 6px;
  }

  .hud__stats {
    grid-area: stats;
    justify-content: flex-start;
  }

  .hud__bottom {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "objects objects"
      "pad rates";
    row-gap: 10px;
    align-items: center;
  }

  .objects {
    grid-area: objects;
  }

  .pad {
    grid-area: pad;
    grid-template-columns: repeat(3, 44px);
    grid-template-rows: repeat(3, 44px);
  }

  .rates {
    grid-area: rates;
    justify-content: flex-end;
  }

  .rate {
    min-width: 52px;
    min-height: 52px;
  }

  .rate__label {
    display: none;
  }

  .langgrid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .hintcard {
    inset-block-start: calc(122px + env(safe-area-inset-top));
  }
}

/* Compact phones cannot fit a 3-wide pad and four 52px time buttons side by
   side; a 2×2 time cluster keeps every control inside the screen. */
@media (max-width: 420px) {
  .hud__bottom {
    column-gap: 10px;
  }

  .rates {
    display: grid;
    grid-template-columns: repeat(2, 54px);
    gap: 6px;
    align-self: end;
    justify-content: end;
  }

  .rate {
    min-width: 0;
    min-height: 56px;
    width: 54px;
    padding: 5px 2px;
  }

  .rate__label {
    display: block;
    font-size: 0.56rem;
    letter-spacing: 0;
    white-space: nowrap;
  }
}

@media (max-height: 620px) and (orientation: landscape) {
  .hintcard {
    inset-inline-start: max(14px, env(safe-area-inset-left));
    inset-inline-end: auto;
    inset-block-start: calc(72px + env(safe-area-inset-top));
    width: min(330px, 44vw);
    transform: none;
    animation: none;
    padding: 11px 12px;
    gap: 9px;
  }

  .hintcard__icon {
    display: none;
  }

  .hintcard__text {
    font-size: 0.76rem;
    line-height: 1.4;
  }
}

@media (max-height: 540px) {
  .hud__sub {
    display: none;
  }
}

/* ---------- accessibility ---------- */

body.large-targets {
  --tap: 54px;
}

body.large-targets .rate {
  min-width: 64px;
  min-height: 64px;
}

body.large-targets .pad {
  grid-template-columns: repeat(3, 56px);
  grid-template-rows: repeat(3, 52px);
}

body.high-contrast {
  --line: rgba(160, 210, 245, 0.34);
  --line-strong: rgba(190, 230, 255, 0.62);
  --text-dim: #c6d6e4;
  --text-faint: #a5b8c8;
}

body.high-contrast .stat,
body.high-contrast .objchip,
body.high-contrast .rate,
body.high-contrast .iconbtn,
body.high-contrast .pad__btn {
  background: #060b12;
  border-color: rgba(190, 230, 255, 0.5);
}

button:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- sliders ---------- */

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: min(220px, 45vw);
  height: 28px;
  background: transparent;
  accent-color: #6fe6ff;
}

.slider::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -7px;
  border-radius: 50%;
  background: #ffc76b;
  border: 2px solid #0a121c;
  box-shadow: 0 0 12px rgba(255, 199, 107, 0.5);
}

.slider::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffc76b;
  border: 2px solid #0a121c;
}

html[dir="rtl"] .screen__head .btn--ghost {
  direction: rtl;
}