body.py {
  --bg: #FFFBF2;
  --surface: #FFFFFF;
  --surface-2: #FFF3D6;
  --line: #EADFC6;
  --text: #1D2433;
  --text-2: #5B6475;
  --accent: #2F6EA8;
  --accent-strong: #1F4F7D;
  --accent-soft: #E3EEF8;
  --on-accent: #FFFFFF;
  --ink: #1D2433;
  --on-ink: #FFFBF2;
  --py-yellow: #FFD43B;
  --py-edge: #1D2433;
  --py-drop: #1D2433;
  --py-out: #C0504D;
  --py-good: #2E8B57;
  --py-bad: #D0453A;
  --py-mark: rgba(255, 212, 59, 0.75);
  --py-rule: rgba(47, 110, 168, 0.12);
  --py-margin: rgba(208, 69, 58, 0.35);
  --py-kw: #A626A4;
  --py-str: #50A14F;
  --py-num: #986801;
  --py-fn: #4078F2;
  --py-com: #A0A1A7;
  --py-mono: "Cascadia Code", "Cascadia Mono", "JetBrains Mono", Consolas, ui-monospace, monospace;
  --py-note-1: #FFF1A8;
  --py-note-2: #D6E9FB;
  --py-note-3: #D4F3E2;
  --py-note-4: #FBDDE6;
}

@media (prefers-color-scheme: dark) {
  body.py {
    --bg: #11151C;
    --surface: #181E28;
    --surface-2: #222A37;
    --line: #2C3545;
    --text: #EEF1F6;
    --text-2: #A3ADBD;
    --accent: #6FA8DC;
    --accent-strong: #A6CBEE;
    --accent-soft: #1B2C40;
    --on-accent: #0D1520;
    --ink: #EEF1F6;
    --on-ink: #11151C;
    --py-edge: #4A5670;
    --py-drop: #000000;
    --py-out: #F08A7E;
    --py-good: #5FD39A;
    --py-bad: #F07A6E;
    --py-mark: rgba(255, 212, 59, 0.32);
    --py-rule: rgba(111, 168, 220, 0.12);
    --py-margin: rgba(240, 122, 110, 0.35);
    --py-kw: #C678DD;
    --py-str: #98C379;
    --py-num: #D19A66;
    --py-fn: #61AFEF;
    --py-com: #7F848E;
    --py-note-1: #3A3418;
    --py-note-2: #1C2D40;
    --py-note-3: #183428;
    --py-note-4: #3A1E28;
  }
}

.py section {
  padding: 104px 0;
}

.py main h1 em,
.py main h2 em {
  color: inherit;
  font-style: normal;
  background: linear-gradient(transparent 58%, var(--py-mark) 58%, var(--py-mark) 92%, transparent 92%);
  padding: 0 0.08em;
}

.py main h2 {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.08;
}

.py-head {
  max-width: 700px;
  margin-bottom: 48px;
}

.py-head.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.py-head p:not(.py-prompt) {
  margin: 16px 0 0;
  color: var(--text-2);
}

.py-prompt {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: var(--py-mono);
  font-size: 15px;
  font-weight: 700;
}

.py .btn {
  border: 2px solid var(--py-edge);
  border-radius: 16px;
  box-shadow: 4px 4px 0 var(--py-drop);
}

.py .btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--py-drop);
}

.py .btn.primary {
  border-color: var(--py-edge);
  background: var(--accent);
  color: var(--on-accent);
}

.py-card {
  border: 2px solid var(--py-edge);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 6px 6px 0 var(--py-drop);
}

.py-code {
  margin: 0;
  color: var(--text);
  font-family: var(--py-mono);
  font-size: 14.5px;
  font-variant-ligatures: none;
  line-height: 1.65;
  white-space: pre;
}

.py-code .kw { color: var(--py-kw); }
.py-code .st { color: var(--py-str); }
.py-code .nu { color: var(--py-num); }
.py-code .fn { color: var(--py-fn); }
.py-code .co { color: var(--py-com); font-style: italic; }

.py .py-hero {
  position: relative;
  padding: 72px 0 96px;
  overflow: hidden;
  isolation: isolate;
}

.py-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  z-index: -1;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--py-yellow) 30%, transparent), transparent 65%);
}

.py-hero::after {
  content: "";
  position: absolute;
  bottom: -160px;
  left: -160px;
  z-index: -1;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent), transparent 65%);
}

.py-hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 500px);
  gap: 56px;
  align-items: center;
}

.py-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
  padding: 6px 18px 6px 6px;
  border: 2px solid var(--py-edge);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: 3px 3px 0 var(--py-drop);
  font-weight: 700;
}

.py-mark img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.py-hero h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.py-notebook {
  position: relative;
}

.py-nb {
  overflow: hidden;
  padding: 0 0 22px;
}

.py-nb-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 2px solid var(--py-edge);
  background: var(--surface-2);
  font-family: var(--py-mono);
  font-size: 13px;
  font-weight: 700;
}

.py-nb-bar i {
  width: 12px;
  height: 12px;
  border: 2px solid var(--py-edge);
  border-radius: 50%;
  background: var(--py-yellow);
}

.py-nb-bar i + i {
  background: var(--accent);
}

.py-nb-bar span {
  margin-left: 6px;
}

.py-cell {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 4px 0;
  padding: 14px 18px 0 0;
}

.py-cell .lbl {
  padding-top: 2px;
  font-family: var(--py-mono);
  font-size: 12.5px;
  font-weight: 700;
  text-align: right;
  padding-right: 12px;
}

.py-cell .in {
  color: var(--accent);
}

.py-cell .out {
  color: var(--py-out);
}

.py-cell .src {
  padding: 8px 12px;
  overflow-x: auto;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
}

.py-cell .res {
  padding: 2px 12px 0;
  color: var(--text);
  font-family: var(--py-mono);
  font-size: 14px;
  white-space: pre;
}

.py-notebook.is-armed .py-cell {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.py-notebook.is-armed .py-cell.is-in {
  opacity: 1;
  transform: none;
}

.py-sticker {
  position: absolute;
  z-index: 2;
  padding: 8px 14px;
  border: 2px solid var(--py-edge);
  border-radius: 12px;
  background: var(--py-yellow);
  box-shadow: 3px 3px 0 var(--py-drop);
  color: #1D2433;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.py-sticker.s1 {
  top: -18px;
  right: 22px;
  transform: rotate(6deg);
}

.py-sticker.s2 {
  right: -14px;
  bottom: -20px;
  background: var(--accent-soft);
  color: var(--text);
  transform: rotate(-5deg);
}

.py .py-facts {
  padding: 8px 0 32px;
}

.py-stickers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.py-stickers li {
  padding: 22px 22px 20px;
  border: 2px solid var(--py-edge);
  border-radius: 18px;
  box-shadow: 5px 5px 0 var(--py-drop);
  transition: transform 0.2s ease;
}

.py-stickers li:nth-child(1) { background: var(--py-note-1); transform: rotate(-1.5deg); }
.py-stickers li:nth-child(2) { background: var(--py-note-2); transform: rotate(1deg); }
.py-stickers li:nth-child(3) { background: var(--py-note-3); transform: rotate(-0.8deg); }
.py-stickers li:nth-child(4) { background: var(--py-note-4); transform: rotate(1.4deg); }

.py-stickers li:hover {
  transform: rotate(0) translateY(-3px);
}

.py-stickers .ico {
  width: 28px;
  height: 28px;
}

.py-stickers strong {
  display: block;
  margin-top: 10px;
  font-size: 19px;
}

.py-stickers span {
  display: block;
  margin-top: 2px;
  color: var(--text-2);
  font-size: 14.5px;
}

.py-tab:focus-visible {
  outline: 3px solid var(--py-yellow);
  outline-offset: 3px;
}

.py-gd {
  --gd-bg: var(--surface);
  --gd-surface: var(--surface);
  --gd-line: var(--line);
  --gd-accent: var(--accent);
  --gd-on-accent: var(--on-accent);
  --gd-good: var(--py-good);
  --gd-bad: var(--py-bad);
  --gd-code-bg: var(--bg);
  --gd-mono: var(--py-mono);
  --gd-radius: 14px;
  --gd-border: 2px;
  --gd-shadow: 6px 6px 0 var(--py-drop);
  border-color: var(--py-edge);
}

.py-gd .gd-bar i {
  height: 10px;
  border: 2px solid var(--py-edge);
  border-radius: 6px;
  background: var(--surface);
}

.py-gd .gd-bar i.done {
  background: var(--py-yellow);
}

.py-gd .gd-bar i.now {
  background: color-mix(in srgb, var(--py-yellow) 40%, var(--surface));
}

.py-gd .gd-opt,
.py-gd .gd-card,
.py-gd .gd-pair,
.py-gd .gd-chip {
  box-shadow: 3px 3px 0 color-mix(in srgb, var(--py-drop) 85%, transparent);
}

.py-gd .gd-opt:not(:disabled):active,
.py-gd .gd-card:active,
.py-gd .gd-pair:active,
.py-gd .gd-chip:not(:disabled):active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--py-drop);
}

.py-gd .gd-main {
  border: 2px solid var(--py-edge);
  background: var(--py-yellow);
  box-shadow: 3px 3px 0 var(--py-drop);
  color: #1D2433;
  font-family: inherit;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.py-gd .gd-main:not(:disabled):active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--py-drop);
}

.py-gd .gd-main:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.py-gq {
  --gq-bg: var(--surface);
  --gq-surface: var(--surface);
  --gq-line: var(--line);
  --gq-code-bg: var(--bg);
  --gq-mono: var(--py-mono);
  --gq-radius: 14px;
  --gq-border: 2px;
  --gq-shadow: 6px 6px 0 var(--py-drop);
  --gq-junior: var(--py-good);
  --gq-medior: #C98A00;
  --gq-senior: var(--py-bad);
}

.py-gq .gq-stats,
.py-gq .gq {
  border-color: var(--py-edge);
}

.py-gq .gq-bars i {
  border: 2px solid var(--py-edge);
  height: 14px;
  border-radius: 7px;
}

.py-gq .gq-tab[aria-pressed="true"] {
  border-color: var(--py-edge);
  background: var(--py-yellow);
  color: #1D2433;
}

.py-gq .gq-item {
  box-shadow: 3px 3px 0 color-mix(in srgb, var(--py-drop) 85%, transparent);
}

.py-gq .gq-item.is-open {
  border-color: var(--py-edge);
}

.py-gd .gd-feedback.is-right,
.py-gd .gd-feedback.is-wrong {
  border-width: 2px;
  border-style: solid;
}

.py-paper {
  position: relative;
  padding: 44px 40px 40px 84px;
  border: 2px solid var(--py-edge);
  border-radius: 18px;
  background:
    linear-gradient(90deg, transparent 60px, var(--py-margin) 60px, var(--py-margin) 62px, transparent 62px),
    repeating-linear-gradient(transparent 0 39px, var(--py-rule) 39px 40px),
    var(--surface);
  box-shadow: 6px 6px 0 var(--py-drop);
}

.py-paper h3 {
  margin-bottom: 4px;
  font-size: 15px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.py-toc {
  columns: 2;
  column-gap: 48px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.py-toc li {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 40px;
  break-inside: avoid;
  font-size: 16.5px;
}

.py-toc li::before {
  content: "";
  flex: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-2);
  border-radius: 5px;
}

.py-toc li.done::before {
  border-color: var(--py-good);
  background:
    linear-gradient(45deg, transparent 44%, var(--py-good) 44%, var(--py-good) 58%, transparent 58%) 2px 5px / 6px 7px no-repeat,
    linear-gradient(-45deg, transparent 42%, var(--py-good) 42%, var(--py-good) 56%, transparent 56%) 6px 1px / 9px 12px no-repeat;
}

.py-toc li.done {
  color: var(--text-2);
}

.py-toc li.now {
  font-weight: 700;
}

.py-toc li.now::after {
  content: "you are here";
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--py-yellow);
  color: #1D2433;
  font-size: 12px;
  font-weight: 700;
}

.py-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.py-note {
  padding: 24px 24px 26px;
  border: 2px solid var(--py-edge);
  border-radius: 6px 18px 18px 18px;
  box-shadow: 5px 5px 0 var(--py-drop);
}

.py-note:nth-child(4n + 1) { background: var(--py-note-1); transform: rotate(-1deg); }
.py-note:nth-child(4n + 2) { background: var(--py-note-2); transform: rotate(0.8deg); }
.py-note:nth-child(4n + 3) { background: var(--py-note-3); transform: rotate(-0.6deg); }
.py-note:nth-child(4n + 4) { background: var(--py-note-4); transform: rotate(1.2deg); }

.py-note .py-code {
  font-size: 13.5px;
  white-space: pre-wrap;
}

.py-note h3 {
  margin-top: 14px;
  font-size: 20px;
}

.py-note p {
  margin: 6px 0 0;
  color: var(--text-2);
  font-size: 15.5px;
}

.py-tour {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: 56px;
  align-items: center;
}

.py-tabs {
  display: grid;
  gap: 10px;
}

.py-tab {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 2px 14px;
  align-items: center;
  padding: 14px 18px;
  border: 2px solid transparent;
  border-radius: 16px;
  background: none;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.py-tab:hover {
  background: var(--surface);
}

.py-tab[aria-selected="true"] {
  border-color: var(--py-edge);
  background: var(--surface);
  box-shadow: 4px 4px 0 var(--py-drop);
}

.py-tab .num {
  grid-row: span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--py-edge);
  border-radius: 12px;
  background: var(--surface-2);
  font-family: var(--py-mono);
  font-size: 14px;
  font-weight: 700;
}

.py-tab[aria-selected="true"] .num {
  background: var(--py-yellow);
  color: #1D2433;
}

.py-tab strong {
  font-size: 17px;
}

.py-tab span:last-child {
  color: var(--text-2);
  font-size: 14.5px;
}

.py-tab:not([aria-selected="true"]) span:last-child {
  display: none;
}

.py-phone {
  justify-self: center;
  width: 300px;
  padding: 10px;
  border: 2px solid var(--py-edge);
  border-radius: 40px;
  background: #1D2433;
  box-shadow: 8px 8px 0 var(--py-drop);
  transform: rotate(2deg);
}

.py-phone img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 30px;
  transition: opacity 0.2s ease;
}

.py-phone img.is-swapping {
  opacity: 0;
}

.py-plan-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.py-plan-grid > div > p:not(.py-prompt) {
  margin: 16px 0 0;
  color: var(--text-2);
}

.py-repl {
  padding: 22px 24px;
  overflow-x: auto;
}

.py-repl .py-code .err {
  color: var(--py-bad);
  font-weight: 700;
}

.py-repl .py-code .p {
  color: var(--accent);
  font-weight: 700;
}

.py-next-app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  padding: 40px 44px;
  background: var(--py-note-2);
}

.py-next-app h2 {
  font-size: clamp(24px, 3vw, 34px);
}

.py-next-app p:not(.py-prompt) {
  margin: 10px 0 0;
  color: var(--text-2);
}

.py-next-app .buttons {
  margin-top: 0;
}

.py-hero .wrap {
  position: relative;
}

.py-doodles {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

@media (max-width: 1239px) {
  .py-doodles {
    display: none;
  }
}

.py-paperbg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, transparent 64px, var(--py-margin) 64px, var(--py-margin) 66px, transparent 66px),
    repeating-linear-gradient(180deg, transparent 0, transparent 35px, var(--py-rule) 35px, var(--py-rule) 36px);
  -webkit-mask-image: radial-gradient(ellipse 85% 90% at 40% 45%, #000 35%, transparent 85%);
  mask-image: radial-gradient(ellipse 85% 90% at 40% 45%, #000 35%, transparent 85%);
}

.py-doodles .pen {
  fill: none;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  opacity: 0.55;
  animation: py-pen 1.4s ease-out var(--d, 0s) both;
}

.py-doodles .blue { stroke: var(--accent); }
.py-doodles .yellow { stroke: #D19A12; }
.py-doodles .green { stroke: var(--py-good); }
.py-doodles .red { stroke: var(--py-bad); }

@keyframes py-pen {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}

.py-art {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.py-road-art,
.py-run-art {
  max-width: 1000px;
  margin: -8px auto 44px;
}

.py-road-edge { fill: none; stroke: var(--py-edge); stroke-width: 32; stroke-linecap: round; }
.py-road { fill: none; stroke: var(--py-yellow); stroke-width: 25; stroke-linecap: round; }
.py-road-dash { fill: none; stroke: #FFFFFF; stroke-opacity: 0.75; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 2 16; }
.py-stop .base { fill: var(--surface); stroke: var(--py-edge); stroke-width: 3; }
.py-stop .lit { stroke: var(--py-edge); stroke-width: 3; }
.py-stop .c1 { fill: #FFD43B; }
.py-stop .c2 { fill: #8EC5F0; }
.py-stop .c3 { fill: #7FD3A6; }
.py-stop .c4 { fill: #F5A3B8; }
.py-stop text { fill: var(--text); font-family: var(--py-mono); font-size: 16px; font-weight: 700; text-anchor: middle; }
.py-ticks path { fill: none; stroke: #1D2433; stroke-width: 3.5; stroke-linecap: round; stroke-linejoin: round; }
.py-avatar .face { fill: #FFD43B; stroke: var(--py-edge); stroke-width: 3; }
.py-avatar .eye { fill: #1D2433; }
.py-avatar .smile { fill: none; stroke: #1D2433; stroke-width: 2.5; stroke-linecap: round; }
.py-flame .out { fill: #F08A3C; stroke: var(--py-edge); stroke-width: 2.5; stroke-linejoin: round; }
.py-flame .in { fill: #FFD43B; }
.py-streak { fill: var(--text); font-family: var(--py-mono); font-size: 14px; font-weight: 700; text-anchor: middle; }

.py-flame {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: py-flicker 1.6s ease-in-out infinite;
}

@keyframes py-flicker {
  0%, 100% { transform: scale(1, 1); }
  30% { transform: scale(0.94, 1.08); }
  60% { transform: scale(1.04, 0.96); }
}

.py-sheet-shadow { fill: var(--py-drop); }
.py-sheet { fill: var(--surface); stroke: var(--py-edge); stroke-width: 3; }
.py-rule { fill: none; stroke: var(--py-rule); stroke-width: 2; }
.py-margin { fill: none; stroke: var(--py-margin); stroke-width: 2; }
.py-in { font-family: var(--py-mono); font-size: 17px; font-weight: 700; fill: var(--accent); }
.py-cellbox { fill: var(--bg); stroke: var(--line); stroke-width: 2; }
.py-src { fill: var(--text); font-family: var(--py-mono); font-size: 18px; }
.py-src .fn { fill: var(--py-fn); }
.py-src .st { fill: var(--py-str); }
.py-runbtn circle { fill: var(--py-yellow); stroke: var(--py-edge); stroke-width: 3; }
.py-runbtn path { fill: #1D2433; }
.py-out { fill: var(--text); font-family: var(--py-mono); font-size: 19px; font-weight: 600; }
.py-star path { fill: #FFD43B; stroke: var(--py-edge); stroke-width: 3; stroke-linejoin: round; }
.py-cursor path { fill: #FFFFFF; stroke: #1D2433; stroke-width: 2; stroke-linejoin: round; }
.py-postit rect { fill: var(--py-note-1); stroke: var(--py-edge); stroke-width: 2.5; }
.py-sticker-t { fill: var(--text); font-family: var(--py-mono); font-size: 18px; font-weight: 700; text-anchor: middle; }
.py-sticker-t.big { font-size: 26px; }
.py-twinkle { fill: var(--accent); }

.py-postit,
.py-runbtn,
.py-star,
.py-twinkle {
  transform-box: fill-box;
  transform-origin: center;
}

.py-postit {
  animation: py-postit 4s ease-in-out infinite;
}

@keyframes py-postit {
  0%, 100% { transform: rotate(-5deg); }
  50% { transform: rotate(-2deg) translateY(-6px); }
}

.py-in.t0 { animation: py-t0 6s linear infinite; }
.py-in.t1 { opacity: 0; animation: py-t1 6s linear infinite; }
.py-in.t2 { opacity: 0; animation: py-t2 6s linear infinite; }

@keyframes py-t0 { 0%, 27% { opacity: 1; } 28%, 95% { opacity: 0; } 96%, 100% { opacity: 1; } }
@keyframes py-t1 { 0%, 27% { opacity: 0; } 28%, 46% { opacity: 1; } 47%, 100% { opacity: 0; } }
@keyframes py-t2 { 0%, 46% { opacity: 0; } 47%, 95% { opacity: 1; } 96%, 100% { opacity: 0; } }

.py-cursor {
  animation: py-cursor 6s ease-in-out infinite;
}

@keyframes py-cursor {
  0% { opacity: 0; transform: translate(600px, 220px); }
  6% { opacity: 1; transform: translate(600px, 210px); }
  24%, 30% { opacity: 1; transform: translate(738px, 94px); }
  40%, 100% { opacity: 0; transform: translate(760px, 120px); }
}

.py-runbtn {
  animation: py-press 6s ease-in-out infinite;
}

@keyframes py-press {
  0%, 25%, 32%, 100% { transform: scale(1); }
  28% { transform: scale(0.86); }
}

.py-out {
  animation: py-out 6s ease-out infinite;
}

@keyframes py-out {
  0%, 48% { opacity: 0; transform: translateY(8px); }
  54%, 94% { opacity: 1; transform: none; }
  98%, 100% { opacity: 0; }
}

.py-star {
  animation: py-star 6s ease-out infinite;
}

@keyframes py-star {
  0%, 58% { opacity: 0; transform: scale(2.2) rotate(-40deg); }
  64% { opacity: 1; transform: scale(0.92) rotate(8deg); }
  68%, 94% { opacity: 1; transform: scale(1) rotate(0); }
  98%, 100% { opacity: 0; }
}

.py-twinkle {
  animation: py-twinkle 2.6s ease-in-out infinite;
}

.py-twinkle.late {
  animation-delay: 1.3s;
}

@keyframes py-twinkle {
  50% { opacity: 0.3; transform: scale(0.6); }
}

.py-ready .py-anim:not(.is-in) * {
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce) {
  .py-anim *,
  .py-anim {
    animation: none !important;
  }

  .py-in.t0, .py-in.t1, .py-cursor { opacity: 0; }
  .py-in.t2, .py-out, .py-star { opacity: 1; }
}

@media (max-width: 1000px) {
  .py-hero .wrap,
  .py-plan-grid,
  .py-tour {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .py-stickers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .py-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .py-next-app {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .py section {
    padding: 72px 0;
  }

  .py .py-hero {
    padding: 44px 0 64px;
  }

  .py-cell {
    grid-template-columns: 54px minmax(0, 1fr);
    padding-right: 12px;
  }

  .py-cell .lbl {
    padding-right: 8px;
    font-size: 11px;
  }

  .py-code {
    font-size: 13px;
  }

  .py-sticker.s2 {
    right: 6px;
  }

  .py-stickers {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .py-stickers li {
    padding: 16px 14px;
  }

  .py-gd {
    box-shadow: 4px 4px 0 var(--py-drop);
  }

  .py-paper {
    padding: 28px 18px 24px 54px;
    background:
      linear-gradient(90deg, transparent 36px, var(--py-margin) 36px, var(--py-margin) 38px, transparent 38px),
      repeating-linear-gradient(transparent 0 39px, var(--py-rule) 39px 40px),
      var(--surface);
  }

  .py-toc {
    columns: 1;
  }

  .py-toc li {
    font-size: 15.5px;
  }

  .py-notes {
    grid-template-columns: 1fr;
  }

  .py-phone {
    width: 250px;
  }

  .py-next-app {
    padding: 28px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .py-notebook.is-armed .py-cell {
    opacity: 1;
    transform: none;
  }
}