:root {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--tg-theme-text-color, #18233b);
  background: var(--tg-theme-bg-color, #f4f5fa);
  font-size: 16px;
  --card: var(--tg-theme-secondary-bg-color, #fff);
  --accent: var(--tg-theme-button-color, #5865e8);
  --muted: var(--tg-theme-hint-color, #6c7587);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
main {
  max-width: 640px;
  margin: auto;
  padding: 24px 18px calc(24px + env(safe-area-inset-bottom));
}
header,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
h1 {
  font-size: 28px;
  margin: 4px 0 20px;
  letter-spacing: -0.8px;
}
h2 {
  font-size: 21px;
  letter-spacing: -0.4px;
  margin: 10px 0 16px;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--muted);
}
section {
  border-radius: 22px;
  background: var(--card);
  padding: 22px;
  margin: 16px 0;
}
#hero {
  text-align: center;
}
#timer {
  font-size: 64px;
  line-height: 1.2;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  letter-spacing: -3px;
  margin: 20px 0;
}
.muted,
footer {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
footer {
  padding: 12px 6px;
}
button {
  border: 0;
  background: var(--accent);
  color: var(--tg-theme-button-text-color, #fff);
  border-radius: 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 13px 16px;
  cursor: pointer;
  min-height: 44px;
}
button.quiet {
  background: transparent;
  color: var(--accent);
}
button:disabled {
  opacity: 0.45;
  cursor: wait;
}
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
li.block {
  display: flex;
  gap: 12px;
  align-items: center;
  border-bottom: 1px solid color-mix(in srgb, var(--muted) 15%, transparent);
  padding: 14px 0;
}
.block-index {
  width: 26px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  flex-shrink: 0;
}
.block-body {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
}
.block-body strong {
  display: block;
  font-size: 15px;
}
.block-body small {
  color: var(--muted);
}
li.current {
  color: var(--accent);
}
li.done {
  opacity: 0.6;
}
.block-controls {
  display: flex;
  gap: 0;
}
.block-controls button {
  padding: 9px;
  min-width: 44px;
  font-size: 18px;
}
details {
  margin-top: 18px;
  font-size: 14px;
}
summary {
  cursor: pointer;
  color: var(--muted);
  padding: 8px 0;
}
.field {
  display: block;
  font-size: 13px;
  margin: 14px 0;
}
input:not([type="radio"]),
select {
  display: block;
  width: 100%;
  margin-top: 6px;
  background: var(--tg-theme-bg-color, #f4f5fa);
  color: inherit;
  border: 1px solid color-mix(in srgb, var(--muted) 30%, transparent);
  border-radius: 9px;
  padding: 11px;
  font: inherit;
  min-width: 0;
}
fieldset {
  border: 1px solid color-mix(in srgb, var(--muted) 30%, transparent);
  border-radius: 12px;
  margin: 16px 0;
  padding: 14px;
}
fieldset > label {
  display: block;
  margin: 10px 0;
}
input[type="radio"] {
  accent-color: var(--accent);
}
.project-row {
  margin: 14px 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--tg-theme-bg-color, #f4f5fa);
}
.project-numbers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.project-row .field {
  margin: 8px 0;
}
#message {
  font-size: 14px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
#message.error {
  color: var(--tg-theme-destructive-text-color, #b53645);
}
[hidden] {
  display: none !important;
}
@media (prefers-reduced-motion: no-preference) {
  button {
    transition: opacity 0.15s;
  }
}
@media (max-width: 360px) {
  main {
    padding: 16px 12px;
  }
  section {
    padding: 16px;
  }
  .block-controls button {
    min-width: 40px;
    padding: 6px;
  }
  #timer {
    font-size: 54px;
  }
}