:root {
  color-scheme: light dark;
  --bg: #eef2eb;
  --surface: #ffffff;
  --surface-muted: #e3eae1;
  --ink: #10211d;
  --muted: #61706a;
  --line: rgba(16, 33, 29, 0.12);
  --accent: #b9f55b;
  --accent-strong: #89ca26;
  --accent-ink: #10211d;
  --rest: #ffbf69;
  --danger: #c8413b;
  --shadow: 0 18px 55px rgba(22, 47, 40, 0.11);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #08110f;
    --surface: #10211d;
    --surface-muted: #19302a;
    --ink: #f2f7f0;
    --muted: #a9bab3;
    --line: rgba(242, 247, 240, 0.12);
    --accent: #b9f55b;
    --accent-strong: #9ddd3e;
    --accent-ink: #10211d;
    --rest: #ffc87a;
    --danger: #ff8b83;
    --shadow: 0 18px 55px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 95% -5%, rgba(185, 245, 91, 0.32), transparent 32rem),
    radial-gradient(circle at -10% 35%, rgba(255, 191, 105, 0.16), transparent 25rem),
    var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
a,
summary,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--rest);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.app-shell {
  width: min(100%, 980px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 0 18px calc(104px + env(safe-area-inset-bottom));
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: calc(10px + env(safe-area-inset-top)) 0 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 15px;
  background: var(--ink);
  color: var(--accent);
  font-size: 1rem;
  font-weight: 900;
  transform: rotate(-4deg);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.68rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button,
.install-button,
.primary-button,
.secondary-button,
.text-button,
.nav-button,
.move-button {
  border: 0;
  cursor: pointer;
}

.icon-button {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  font-size: 1.3rem;
}

.icon-button.enabled {
  border-color: transparent;
  background: var(--accent);
  color: var(--accent-ink);
}

.install-button,
.primary-button,
.secondary-button {
  min-height: 48px;
  border-radius: 999px;
  padding: 0 20px;
  font-weight: 800;
}

.install-button,
.primary-button {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 10px 25px rgba(137, 202, 38, 0.22);
}

.primary-button:hover,
.install-button:hover {
  background: var(--accent-strong);
}

.primary-button.large {
  display: flex;
  width: 100%;
  min-height: 62px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 1.05rem;
}

.primary-button.compact {
  min-width: max-content;
}

.secondary-button {
  border: 1px solid var(--line);
  background: var(--surface-muted);
  color: var(--ink);
}

.text-button {
  min-height: 44px;
  padding: 8px 2px;
  background: transparent;
  color: var(--muted);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--muted) 35%, transparent);
  text-underline-offset: 4px;
}

.danger-text {
  color: var(--danger);
}

.eyebrow {
  margin: 0 0 9px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

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

h1 {
  max-width: 680px;
  margin-bottom: 14px;
  font-size: clamp(2.15rem, 11vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 6vw, 2rem);
  letter-spacing: -0.035em;
}

.hero-card,
.session-card,
.safety-note,
.exercise-item,
.empty-state {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card {
  display: grid;
  min-height: 570px;
  align-content: space-between;
  gap: 34px;
  padding: 30px 24px 24px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(150deg, transparent 52%, rgba(185, 245, 91, 0.17)),
    var(--surface);
}

.hero-copy,
.page-heading p,
.settings-footer p,
.capability-note {
  color: var(--muted);
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.hero-stats div {
  padding: 15px 10px;
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  text-align: center;
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  font-size: 1.4rem;
  font-variant-numeric: tabular-nums;
}

.hero-stats span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.7rem;
}

.session-card {
  position: relative;
  min-height: 590px;
  padding: 22px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.session-card.resting {
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 191, 105, 0.3), transparent 48%),
    var(--surface);
}

.session-header,
.section-heading,
.page-heading,
.dialog-heading,
.exercise-item-header,
.exercise-item-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.phase-badge {
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.75rem;
  font-weight: 900;
}

.resting .phase-badge {
  background: var(--rest);
}

.progress-text {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.progress-track {
  display: block;
  width: 100%;
  height: 7px;
  margin-top: 15px;
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  appearance: none;
  background: var(--surface-muted);
}

.progress-track::-webkit-progress-bar {
  border-radius: inherit;
  background: var(--surface-muted);
}

.progress-track::-webkit-progress-value,
.progress-track::-moz-progress-bar {
  border-radius: inherit;
  background: var(--accent-strong);
}

.session-content {
  display: grid;
  min-height: 340px;
  place-content: center;
  padding: 28px 0;
  text-align: center;
}

.session-kicker {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.exercise-meta,
.next-exercise {
  margin: 10px 0 0;
  color: var(--muted);
}

.timer-display {
  margin-top: 25px;
  font-size: clamp(4.5rem, 23vw, 8.2rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.075em;
  font-variant-numeric: tabular-nums;
}

.timer-display small {
  margin-left: 8px;
  font-size: 0.18em;
  letter-spacing: 0;
}

.next-exercise {
  min-height: 24px;
  font-size: 0.86rem;
}

.session-actions {
  display: grid;
  gap: 10px;
}

.session-card > .text-button {
  display: block;
  margin: 12px auto 0;
}

.section-block {
  margin-top: 46px;
}

.section-heading {
  align-items: end;
  margin-bottom: 17px;
}

.workout-queue,
.exercise-list {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.queue-item {
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 13px;
  min-height: 75px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.queue-index {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 900;
}

.queue-item strong,
.queue-item small {
  display: block;
}

.queue-item small {
  margin-top: 5px;
  color: var(--muted);
}

.queue-type {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 800;
}

.safety-note {
  margin-top: 34px;
  padding: 0 19px;
  border-radius: var(--radius-md);
  background: var(--surface);
}

.safety-note summary {
  min-height: 56px;
  padding: 17px 0;
  cursor: pointer;
  font-weight: 850;
}

.safety-note p {
  padding-bottom: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.capability-note {
  margin: 18px 4px 0;
  font-size: 0.78rem;
}

.page-heading {
  align-items: end;
  margin: 18px 0 30px;
}

.page-heading h1 {
  margin-bottom: 10px;
  font-size: clamp(2.3rem, 11vw, 4.3rem);
}

.page-heading p {
  max-width: 560px;
  margin-bottom: 0;
}

.exercise-item {
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--surface);
}

.exercise-item-header {
  align-items: start;
}

.exercise-item h3 {
  margin: 0;
  font-size: 1.05rem;
}

.exercise-item p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.exercise-item-actions {
  justify-content: flex-start;
  margin-top: 15px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.move-button {
  min-width: 44px;
  min-height: 44px;
  border-radius: 13px;
  background: var(--surface-muted);
  font-weight: 800;
}

.move-button.edit {
  margin-left: auto;
  padding: 0 15px;
}

.move-button.delete {
  background: transparent;
  color: var(--danger);
}

.move-button:disabled {
  cursor: not-allowed;
  opacity: 0.35;
}

.empty-state {
  padding: 32px 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--muted);
  text-align: center;
}

.settings-footer {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.settings-footer .secondary-button {
  justify-self: start;
}

.settings-footer p {
  font-size: 0.8rem;
}

.bottom-nav {
  position: fixed;
  z-index: 30;
  right: 14px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  left: 14px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  max-width: 440px;
  min-height: 68px;
  margin: 0 auto;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(10, 25, 21, 0.92);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.nav-button {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 18px;
  background: transparent;
  color: #b7c7c1;
  font-weight: 800;
}

.nav-button.active {
  background: var(--accent);
  color: var(--accent-ink);
}

.exercise-dialog {
  width: min(calc(100% - 24px), 620px);
  max-height: min(88vh, 760px);
  padding: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.4);
}

.exercise-dialog::backdrop {
  background: rgba(4, 12, 10, 0.7);
  backdrop-filter: blur(5px);
}

.exercise-dialog form {
  padding: 24px;
}

.dialog-heading {
  margin-bottom: 24px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 15px;
}

.field > span,
.check-field strong,
.check-field small {
  display: block;
}

.field > span {
  font-size: 0.8rem;
  font-weight: 800;
}

.field input,
.field select {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 14px;
  background: var(--surface-muted);
  color: var(--ink);
}

.check-field {
  display: flex;
  align-items: start;
  gap: 12px;
  margin: 3px 0 22px;
  padding: 15px;
  border-radius: 15px;
  background: var(--surface-muted);
}

.check-field input {
  width: 22px;
  height: 22px;
  margin: 1px 0 0;
  accent-color: var(--accent-strong);
}

.check-field small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.45;
}

.dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 10px;
}

.toast {
  position: fixed;
  z-index: 60;
  right: 18px;
  bottom: calc(96px + env(safe-area-inset-bottom));
  left: 18px;
  max-width: 520px;
  margin: 0 auto;
  padding: 15px 18px;
  border-radius: 16px;
  background: var(--ink);
  color: var(--bg);
  box-shadow: var(--shadow);
  font-weight: 800;
  text-align: center;
}

noscript {
  display: block;
  padding: 30px;
  text-align: center;
}

@media (min-width: 760px) {
  .app-shell {
    padding-right: 28px;
    padding-left: 28px;
  }

  .topbar {
    min-height: 92px;
  }

  .hero-card,
  .session-card {
    padding: 38px;
  }

  .hero-card {
    min-height: 590px;
  }

  .hero-stats {
    max-width: 520px;
  }

  .primary-button.large {
    max-width: 520px;
  }

  .session-actions {
    max-width: 520px;
    margin: 0 auto;
  }

  .workout-queue,
  .exercise-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .queue-item {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--surface) 72%, transparent);
  }
}

@media (max-width: 480px) {
  .brand small {
    display: none;
  }

  .install-button {
    padding: 0 14px;
    font-size: 0.78rem;
  }

  .page-heading {
    display: grid;
    align-items: start;
  }

  .page-heading .primary-button {
    justify-self: start;
  }

  .field-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .exercise-dialog form {
    padding: 20px 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}