:root {
  --bg: #0B0A0D;
  --surface: #17161B;
  --line: #2B2931;
  --air: #F7D92B;
  --air-deep: #E3B90E;
  --text: #F3F1E7;
  --dim: rgba(243, 241, 231, .56); /* второстепенный текст — полупрозрачный, чтобы не спорить с фоном */
  --glass: rgba(255, 255, 255, .09);
  --font: "Onest", "Segoe UI", Roboto, system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.35;
  font-variant-numeric: lining-nums tabular-nums;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
  user-select: none;
}

button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
p, h2 { margin: 0; }

:focus-visible {
  outline: 2px solid var(--air);
  outline-offset: 3px;
}

/* ---------- Живой фон ---------- */

.backdrop {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}
/* затемнение под лёгкими и текстом, чтобы они читались на любом фоне */
.scrim {
  position: fixed;
  inset: 0;
  display: none;
  background:
    radial-gradient(ellipse 80% 46% at 50% 50%, rgba(6, 6, 10, .42), rgba(6, 6, 10, 0) 100%),
    linear-gradient(rgba(6, 6, 10, .38), rgba(6, 6, 10, .1) 24%, rgba(6, 6, 10, .1) 74%, rgba(6, 6, 10, .46));
}
.has-backdrop .scrim { display: block; }

.view {
  position: fixed;
  inset: 0;
  max-width: 480px;
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 16px max(18px, env(safe-area-inset-bottom));
}

/* ---------- Главный экран ---------- */

.view-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  transition: opacity .28s;
}
/* пока открыты настройки, главный экран не просвечивает сквозь них — виден только фон */
.view-main[inert] { opacity: 0; }
.no-anim .view-main { transition: none; }

.top { text-align: center; }

.program {
  color: var(--dim);
  font-size: 16px;
}
.program .pattern {
  margin-left: 6px;
  letter-spacing: .06em;
}

.readout {
  display: grid;
  place-items: center;
  min-height: 84px;
}
.hint {
  color: var(--dim);
  font-size: 20px;
}
.now {
  color: var(--air);
  font-size: 40px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.01em;
  opacity: .82;
}
.now .count {
  display: inline-block;
  min-width: 1.3em;
  text-align: left;
  margin-left: .15em;
}
[hidden] { display: none !important; }

.stage {
  display: grid;
  place-items: center;
  min-height: 0;
  margin: 0 -10px;
}
.stage-svg {
  width: min(100%, 58dvh);
  aspect-ratio: 1;
  overflow: visible;
}

.track {
  fill: none;
  stroke: var(--air);
  stroke-opacity: .42;
  stroke-width: 1.6;
  stroke-linecap: square;
  stroke-linejoin: miter;
}
.track.dashed {
  stroke-opacity: .3;
  stroke-dasharray: 5 7;
  stroke-linecap: butt;
}
.active-seg {
  fill: none;
  stroke: var(--air);
  stroke-width: 2.4;
  stroke-linecap: square;
}
.tail {
  fill: none;
  stroke: var(--air);
  stroke-width: 6;
  stroke-opacity: .28;
  stroke-linecap: butt;
}

.side-label {
  fill: var(--dim);
  font-size: 14px;
  text-anchor: middle;
  dominant-baseline: middle;
  transition: fill .3s;
}
.side-label.active { fill: var(--air); font-weight: 600; }
.side-label.skip { opacity: .45; }

.lungs-body {
  transform-box: fill-box;
  transform-origin: 50% 55%;
}
.has-backdrop .tissue { fill-opacity: .8; }
.windpipe {
  fill: none;
  stroke: #77757F;
  stroke-width: 13;
  stroke-linecap: round;
}
.windpipe.stem { stroke-width: 9; }
.rings {
  fill: none;
  stroke: var(--bg);
  stroke-opacity: .55;
  stroke-width: 2;
  stroke-linecap: round;
}
.tree path {
  fill: none;
  stroke: var(--bg);
  stroke-opacity: .62;
  stroke-linecap: round;
}

.dot .core { fill: var(--air); }
.dot .halo { fill: var(--air); opacity: .22; }
.dot.hop { animation: hop .35s ease-out; }
@keyframes hop { from { opacity: 0; } to { opacity: 1; } }

.bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding-top: 10px;
}
.stats {
  justify-self: start;
  display: grid;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.3;
  opacity: 0;
  transition: opacity .3s;
}
.stats #elapsed { font-size: 19px; font-weight: 500; }
.running .stats { opacity: 1; }

.primary {
  min-width: 172px;
  height: 58px;
  padding: 0 28px;
  border: 0;
  border-radius: 29px;
  background: var(--air);
  color: #15130A;
  font-size: 20px;
  font-weight: 700;
  transition: background .2s, color .2s, box-shadow .2s;
}
.primary:active { background: var(--air-deep); }
.running .primary {
  background: transparent;
  color: var(--text);
  box-shadow: inset 0 0 0 1.5px #4A4753;
  font-weight: 500;
}

.icon-btn {
  justify-self: end;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}
.has-backdrop .view-main .icon-btn { background: var(--glass); color: var(--dim); }
.has-backdrop .running .primary { box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .28); color: var(--dim); }
.icon-btn:active { background: var(--line); }
.icon-btn.ghost { background: transparent; justify-self: start; margin-left: -12px; }

/* ---------- Настройки ---------- */

.view-settings {
  background: var(--bg);
  overflow-y: auto;
  scrollbar-width: none;
  visibility: hidden;
  transform: translateX(100%);
  transition: transform .28s cubic-bezier(.2, .7, .2, 1), visibility 0s .28s;
  user-select: auto;
}
.view-settings.open {
  visibility: visible;
  transform: none;
  transition: transform .28s cubic-bezier(.2, .7, .2, 1), visibility 0s;
}
.no-anim .view-settings { transition: none; }
/* сквозь настройки чуть просвечивает выбранный фон — сразу видно, что выбрали */
.has-backdrop .view-settings { background: rgba(11, 10, 13, .84); }
.has-backdrop .prog.selected { background: rgba(30, 29, 36, .92); }

.settings-head {
  display: flex;
  align-items: center;
  gap: 4px;
}
.settings-head h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.lede {
  margin: 6px 0 18px;
  color: var(--dim);
  font-size: 16px;
  max-width: 34ch;
}

.program-list { border-top: 1px solid var(--line); }
.prog { border-bottom: 1px solid var(--line); }

.prog-head {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 60px;
  padding: 0 4px;
  border: 0;
  background: none;
  text-align: left;
}
.prog-name { min-width: 0; overflow-wrap: anywhere; font-size: 18px; font-weight: 500; }
.prog-pattern { color: var(--dim); letter-spacing: .06em; }

/* значок выбора — маленький квадрат с точкой в левом нижнем углу */
.glyph {
  position: relative;
  width: 20px;
  height: 20px;
  padding: 0;
  background: none;
  border: 1.6px solid #4A4753;
  border-radius: 5px;
}
.selected .glyph { border-color: var(--air); }
.selected .glyph::after {
  content: "";
  position: absolute;
  left: -5px;
  bottom: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--air);
  box-shadow: 0 0 0 3px var(--surface);
}

.prog.selected {
  margin: 10px -6px;
  padding: 0 10px 12px;
  border: 0;
  border-radius: 20px;
  background: var(--surface);
}
.prog.selected + .prog { border-top: 1px solid var(--line); }
.selected .prog-head { cursor: default; }
.selected .prog-pattern { color: var(--air); }

.name-input {
  width: 100%;
  min-width: 0;
  padding: 6px 0;
  border: 0;
  border-bottom: 1px dashed #4A4753;
  border-radius: 0;
  background: none;
  font-size: 18px;
  font-weight: 600;
}
.name-input:focus { outline: none; border-bottom: 1px solid var(--air); }

.row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 14px;
  min-height: 60px;
  padding: 0 4px;
  border-top: 1px solid var(--line);
}
.row-label { font-size: 17px; line-height: 1.2; }

/* значок фазы — квадрат с подсвеченной стороной */
.side-icon {
  width: 20px;
  height: 20px;
  border: 2px solid #4A4753;
  border-radius: 4px;
}
.side-icon.s0 { border-left-color: var(--air); }
.side-icon.s1 { border-top-color: var(--air); }
.side-icon.s2 { border-right-color: var(--air); }
.side-icon.s3 { border-bottom-color: var(--air); }

.stepper {
  display: grid;
  grid-template-columns: 44px 52px 44px;
  align-items: center;
}
.stepper button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1.5px solid #4A4753;
  border-radius: 50%;
  background: none;
}
.stepper button:active { background: var(--line); }
.stepper button:disabled { opacity: .3; cursor: default; }
.stepper output {
  text-align: center;
  font-size: 22px;
  font-weight: 600;
}
.stepper output small {
  margin-left: 2px;
  color: var(--dim);
  font-size: 14px;
  font-weight: 400;
}

.editor-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 4px 0;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 15px;
}
.delete {
  padding: 8px 0;
  border: 0;
  background: none;
  color: #E08A7D;
  font-size: 15px;
}
.delete:disabled { visibility: hidden; }

.add {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 60px;
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--air);
  font-size: 17px;
  font-weight: 500;
}

.prog-note {
  margin: 0 4px 12px 40px;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.4;
}

.reset {
  width: 100%;
  min-height: 52px;
  padding: 0 4px;
  border: 0;
  border-top: 1px solid var(--line);
  background: none;
  color: var(--dim);
  font-size: 16px;
  text-align: left;
}
.disclaimer {
  padding: 16px 4px 28px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 14px;
  line-height: 1.45;
}

.section-title {
  margin: 0;
  padding: 22px 4px 4px;
  border-top: 1px solid var(--line);
  font-size: 20px;
  font-weight: 700;
}
.section-note {
  padding: 0 4px;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.4;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 2px 16px;
}
.chip {
  min-height: 44px;
  padding: 0 16px;
  border: 1.5px solid #4A4753;
  border-radius: 22px;
  background: none;
  font-size: 16px;
}
.chip[aria-checked="true"] {
  border-color: var(--air);
  background: var(--air);
  color: #15130A;
  font-weight: 600;
}
.sound-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 0 4px 16px;
}
.pill {
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 22px;
  background: var(--glass);
  font-size: 16px;
}
.pill:active { background: var(--line); }
.pill.accent { background: var(--air); color: #15130A; font-weight: 600; }
.pill.accent:active { background: var(--air-deep); }

.install {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 14px;
  margin: 4px 0 16px;
  padding: 14px;
  border-radius: 16px;
  background: var(--surface);
}
.volume { display: grid; gap: 4px; color: var(--dim); font-size: 14px; }
.volume input { width: 100%; height: 28px; margin: 0; accent-color: var(--air); }
.sound-off .sound-row { opacity: .35; pointer-events: none; }

.option {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  margin-top: 8px;
  padding: 16px 4px 24px;
  border-top: 1px solid var(--line);
}
.option-text { display: grid; gap: 3px; }
.option-title { font-size: 17px; font-weight: 500; }
.option-note { color: var(--dim); font-size: 15px; }

.switch {
  position: relative;
  width: 54px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 16px;
  background: #4A4753;
  transition: background .2s;
}
.switch span {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--text);
  transition: transform .2s;
}
.switch[aria-checked="true"] { background: var(--air); }
.switch[aria-checked="true"] span { transform: translateX(22px); background: #15130A; }

@media (prefers-reduced-motion: reduce) {
  .view-settings, .side-label, .stats, .primary, .switch, .switch span { transition: none; }
  .dot.hop { animation: none; }
}