:root {
  color-scheme: dark;
  --bg: #11110f;
  --surface: #191815;
  --surface-strong: #211f1a;
  --line: rgba(239, 218, 184, 0.18);
  --line-strong: rgba(246, 177, 106, 0.38);
  --text: #f7efe3;
  --muted: rgba(247, 239, 227, 0.72);
  --faint: rgba(247, 239, 227, 0.52);
  --amber: #f0b56d;
  --sage: #9eb89a;
  --clay: #ce7a5b;
  --teal: #8dc8bd;
  --ink: #0d0c0a;
  --shadow: rgba(0, 0, 0, 0.36);
  --radius: 8px;
  --tap: 52px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0) 34%),
    linear-gradient(145deg, #11110f 0%, #171612 48%, #0d1110 100%);
  color: var(--text);
}

body[data-reduce-motion="true"] *,
body[data-reduce-motion="true"] *::before,
body[data-reduce-motion="true"] *::after {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  scroll-behavior: auto !important;
  transition-duration: 0.001ms !important;
}

button,
input {
  font: inherit;
}

button {
  min-height: var(--tap);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 50%;
  z-index: 20;
  transform: translate(-50%, -140%);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--text);
  padding: 12px 16px;
  text-decoration: none;
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translate(-50%, 0);
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell {
  width: min(1180px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(18px, 5vw, 48px);
  display: grid;
}

.screen {
  display: none;
  width: 100%;
}

.screen.is-active {
  display: grid;
}

.screen--landing {
  align-content: center;
  gap: 24px;
  min-height: calc(100vh - clamp(36px, 10vw, 96px));
}

.landing-grid {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
  align-items: stretch;
}

.landing-copy,
.quiet-panel,
.guidance-panel,
.visual-stage {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(25, 24, 21, 0.84);
  box-shadow: 0 24px 60px var(--shadow);
}

.landing-copy {
  padding: clamp(24px, 6vw, 56px);
  display: grid;
  align-content: center;
  gap: 18px;
}

.eyebrow {
  margin: 0;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 2.7rem;
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: 1.25rem;
  letter-spacing: 0;
}

.subtitle {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1.28;
}

.context-line {
  max-width: 680px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 14px 18px;
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.button:focus-visible,
.switch-row input:focus-visible,
.compact-toggle input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.button:active {
  transform: translateY(1px);
}

.button--primary {
  background: var(--amber);
  color: var(--ink);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: #ffc37c;
}

.button--secondary {
  border-color: var(--line-strong);
  background: rgba(158, 184, 154, 0.16);
}

.button--secondary:hover,
.button--secondary:focus-visible,
.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: rgba(240, 181, 109, 0.7);
  background: rgba(240, 181, 109, 0.13);
}

.button--ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.quiet-panel {
  padding: clamp(20px, 5vw, 30px);
  display: grid;
  align-content: center;
  gap: 16px;
}

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

.switch-row,
.compact-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.switch-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
}

.switch-row strong,
.switch-row small {
  display: block;
}

.switch-row small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.4;
}

input[type="checkbox"] {
  width: 54px;
  height: 30px;
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.4);
  cursor: pointer;
  position: relative;
}

input[type="checkbox"]::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  top: 3px;
  left: 4px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 160ms ease, background 160ms ease;
}

input[type="checkbox"]:checked {
  background: rgba(240, 181, 109, 0.28);
}

input[type="checkbox"]:checked::after {
  transform: translateX(22px);
  background: var(--amber);
}

.last-done {
  margin: 0;
  color: var(--faint);
  font-size: 0.95rem;
}

.safety-note {
  width: min(900px, 100%);
  margin: 0 auto;
  border-left: 3px solid var(--clay);
  padding: 10px 14px;
  color: var(--muted);
  background: rgba(206, 122, 91, 0.08);
  line-height: 1.5;
}

.screen--routine {
  gap: 18px;
  min-height: calc(100vh - clamp(36px, 10vw, 96px));
}

.routine-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.routine-header h1 {
  margin-top: 6px;
  font-size: 2.25rem;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 10px;
}

.compact-toggle {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.compact-toggle input {
  width: 44px;
  height: 26px;
}

.compact-toggle input::after {
  width: 18px;
  height: 18px;
}

.compact-toggle input:checked::after {
  transform: translateX(18px);
}

.routine-layout {
  display: grid;
  gap: 18px;
}

.visual-stage {
  min-height: clamp(300px, 58vh, 620px);
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
}

.three-stage {
  position: relative;
  min-height: 300px;
  isolation: isolate;
}

.three-stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 300px;
  touch-action: none;
}

.visual-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  place-items: center;
  gap: 18px;
  color: var(--amber);
  background:
    radial-gradient(circle at 50% 38%, rgba(240, 181, 109, 0.1), transparent 44%),
    rgba(17, 17, 15, 0.5);
}

.visual-fallback[hidden] {
  display: none;
}

.fallback-figure {
  position: relative;
  width: 250px;
  max-width: 78%;
  aspect-ratio: 1;
}

.fallback-figure span {
  position: absolute;
  display: block;
  transition: transform 220ms ease, opacity 220ms ease;
}

.fallback-chair-back,
.fallback-seat {
  border: 2px solid rgba(247, 239, 227, 0.35);
  border-radius: var(--radius);
}

.fallback-chair-back {
  width: 92px;
  height: 128px;
  left: 79px;
  top: 70px;
}

.fallback-seat {
  width: 138px;
  height: 18px;
  left: 56px;
  top: 178px;
}

.fallback-spine {
  width: 8px;
  height: 96px;
  left: 121px;
  top: 80px;
  border-radius: 999px;
  background: var(--amber);
  transform-origin: bottom center;
}

.fallback-head {
  width: 42px;
  height: 42px;
  left: 104px;
  top: 34px;
  border: 3px solid var(--sage);
  border-radius: 50%;
}

.fallback-shoulders {
  width: 104px;
  height: 8px;
  left: 73px;
  top: 92px;
  border-radius: 999px;
  background: var(--clay);
}

.fallback-arm {
  width: 7px;
  height: 76px;
  top: 98px;
  border-radius: 999px;
  background: var(--sage);
}

.fallback-arm--left {
  left: 78px;
  transform: rotate(10deg);
}

.fallback-arm--right {
  right: 78px;
  transform: rotate(-10deg);
}

.fallback-leg {
  width: 8px;
  height: 74px;
  top: 182px;
  border-radius: 999px;
  background: var(--sage);
  transform-origin: top center;
}

.fallback-leg--left {
  left: 93px;
  transform: rotate(-10deg);
}

.fallback-leg--right {
  right: 93px;
  transform: rotate(10deg);
}

.fallback-cue {
  opacity: 0;
  pointer-events: none;
}

.fallback-cue--up,
.fallback-cue--side,
.fallback-cue--hip {
  width: 3px;
  height: 56px;
  border-radius: 999px;
  background: var(--teal);
}

.fallback-cue--up {
  left: 124px;
  top: 0;
}

.fallback-cue--up::after,
.fallback-cue--side::after,
.fallback-cue--hip::after {
  content: "";
  position: absolute;
  left: 50%;
  top: -2px;
  width: 14px;
  height: 14px;
  border-left: 3px solid var(--teal);
  border-top: 3px solid var(--teal);
  transform: translateX(-50%) rotate(45deg);
}

.fallback-cue--side {
  left: 56px;
  top: 42px;
  transform: rotate(-42deg);
}

.fallback-cue--hip {
  left: 176px;
  top: 170px;
  transform: rotate(132deg);
}

.fallback-cue--ring {
  width: 76px;
  height: 76px;
  left: 87px;
  top: 18px;
  border: 3px solid var(--teal);
  border-radius: 50%;
}

.fallback-label {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 10px 14px;
  background: rgba(240, 181, 109, 0.12);
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0;
}

.three-stage[data-visual="crown"] .fallback-cue--up,
.three-stage[data-visual="breath"] .fallback-cue--up {
  opacity: 1;
}

.three-stage[data-visual="chin"] .fallback-head {
  transform: translateX(-12px);
}

.three-stage[data-visual="chin"] .fallback-cue--side,
.three-stage[data-visual="side-stretch"] .fallback-cue--side {
  opacity: 1;
}

.three-stage[data-visual="shoulders"] .fallback-shoulders {
  transform: translateY(8px) scaleX(0.82);
}

.three-stage[data-visual="shoulders"] .fallback-arm--left,
.three-stage[data-visual="shoulders"] .fallback-arm--right {
  transform: rotate(0deg) translateY(6px);
}

.three-stage[data-visual="side-stretch"] .fallback-spine,
.three-stage[data-visual="side-stretch"] .fallback-head {
  transform: rotate(-10deg) translateX(-6px);
}

.three-stage[data-visual="rotation"] .fallback-cue--ring,
.three-stage[data-visual="wave"] .fallback-cue--ring,
.three-stage[data-visual="breath"] .fallback-cue--ring {
  opacity: 1;
}

.three-stage[data-visual="chest"] .fallback-arm--left {
  transform: rotate(-30deg) translate(-10px, 10px);
}

.three-stage[data-visual="chest"] .fallback-arm--right {
  transform: rotate(30deg) translate(10px, 10px);
}

.three-stage[data-visual="wave"] .fallback-spine {
  transform: rotate(7deg) translateY(4px);
}

.three-stage[data-visual="figure-four"] .fallback-leg--right {
  transform: rotate(82deg) translate(8px, -20px);
}

.three-stage[data-visual="figure-four"] .fallback-cue--hip {
  opacity: 1;
}

.visual-caption {
  min-height: 50px;
  border-top: 1px solid var(--line);
  padding: 14px 16px;
  color: var(--muted);
  line-height: 1.45;
  background: rgba(0, 0, 0, 0.16);
}

.guidance-panel {
  padding: clamp(18px, 4vw, 28px);
  display: grid;
  align-content: start;
  gap: 18px;
}

.progress-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--faint);
  font-weight: 800;
  font-size: 0.95rem;
}

.routine-progress {
  height: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.24);
}

.routine-progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--sage), var(--amber), var(--clay));
  transition: width 220ms ease;
}

.instruction {
  margin: 0;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1.32;
}

.timer-ring {
  width: min(260px, 74vw);
  aspect-ratio: 1;
  justify-self: center;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--amber) calc(var(--timer-progress, 1) * 1turn), rgba(255, 255, 255, 0.08) 0);
  box-shadow: inset 0 0 0 1px var(--line), 0 18px 42px rgba(0, 0, 0, 0.25);
}

.timer-ring > div {
  width: calc(100% - 28px);
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  background: var(--surface);
  text-align: center;
  padding: 18px;
}

.timer-ring strong {
  font-size: 2.4rem;
  line-height: 0.95;
  letter-spacing: 0;
}

.timer-ring span {
  color: var(--muted);
  font-weight: 700;
}

.closing-message {
  margin: 0;
  border: 1px solid rgba(141, 200, 189, 0.42);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(141, 200, 189, 0.12);
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1.35;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.safety-note--compact {
  width: 100%;
  font-size: 0.92rem;
}

.install-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(25, 24, 21, 0.96);
  box-shadow: 0 22px 50px var(--shadow);
  padding: 12px;
}

.install-banner.is-hidden {
  display: none;
}

.install-banner p {
  margin: 0;
}

.install-banner__title {
  font-weight: 900;
}

.install-banner__meta {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.install-banner__action {
  border: 0;
  border-radius: var(--radius);
  background: var(--amber);
  color: var(--ink);
  padding: 12px 14px;
  font-weight: 900;
}

@media (min-width: 760px) {
  h1 {
    font-size: 4.8rem;
  }

  h2 {
    font-size: 1.38rem;
  }

  .subtitle {
    font-size: 1.8rem;
  }

  .context-line {
    font-size: 1.15rem;
  }

  .routine-header h1 {
    font-size: 3.25rem;
  }

  .instruction {
    font-size: 1.7rem;
  }

  .timer-ring strong {
    font-size: 3.2rem;
  }

  .closing-message {
    font-size: 1.45rem;
  }

  .landing-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.8fr);
  }

  .routine-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    align-items: stretch;
  }

  .control-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  h1 {
    font-size: 5.6rem;
  }

  .routine-header h1 {
    font-size: 3.8rem;
  }

  .instruction {
    font-size: 1.9rem;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 14px;
  }

  .screen--landing,
  .screen--routine {
    min-height: calc(100vh - 28px);
  }

  .routine-header {
    align-items: start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    justify-content: stretch;
  }

  .compact-toggle {
    flex: 1 1 140px;
  }

  .landing-actions .button {
    flex: 1 1 100%;
  }

  .visual-stage {
    min-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}