/* skribble.dev: paper, plum ink, and marker colours, matching the docs. */

:root {
  --paper: #fffaf0;
  --paper-2: #fdf3e4;
  --paper-3: #f6dfd5;
  --ink: #34283f;
  --quiet: #6f6273;
  --coral: #e87960;
  --sun: #ffcc4d;
  --lilac: #9c7bd4;
  --mint: #3fb3a4;
  --sky: #4e8fda;
  --pink: #e57aa0;
  --rule: #d9cdc1;
  --on-coral: #2a2033;
  --logo-face: #e5ddf4;
  --tok-k: #784175;
  --tok-s: #35634b;
  --tok-t: #315c83;
  --tok-f: #9c482b;
  --tok-a: #6f6273;

  --font-body: "SkribblePlayful", "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
  --font-display: "Skribble", var(--font-body);
  --font-mono: "SkribbleMonoPlayful", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --page: min(1180px, 100% - 32px);

  --skribble-ink: var(--ink);
  --skribble-paper: var(--paper);
  --skribble-accent: var(--coral);
  --skribble-on-accent: var(--on-coral);
  --skribble-font: var(--font-body);
  --skribble-stroke-width: 2px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1f1a24;
    --paper-2: #28212f;
    --paper-3: #3a2c3b;
    --ink: #f3ebdf;
    --quiet: #bcb0bf;
    --coral: #f08e76;
    --sun: #f2c14e;
    --lilac: #b89ce6;
    --mint: #5cc8b8;
    --sky: #79aef0;
    --pink: #f09bbb;
    --rule: #4a4050;
    --on-coral: #231c28;
  --logo-face: #4a3b5e;
    --tok-k: #d7a6d3;
    --tok-s: #9fd1a8;
    --tok-t: #9cc1ea;
    --tok-f: #f0a785;
    --tok-a: #bcb0bf;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --paper: #1f1a24;
  --paper-2: #28212f;
  --paper-3: #3a2c3b;
  --ink: #f3ebdf;
  --quiet: #bcb0bf;
  --coral: #f08e76;
  --sun: #f2c14e;
  --lilac: #b89ce6;
  --mint: #5cc8b8;
  --sky: #79aef0;
  --pink: #f09bbb;
  --rule: #4a4050;
  --on-coral: #231c28;
  --logo-face: #4a3b5e;
  --tok-k: #d7a6d3;
  --tok-s: #9fd1a8;
  --tok-t: #9cc1ea;
  --tok-f: #f0a785;
  --tok-a: #bcb0bf;
  color-scheme: dark;
}

/* ---------- Base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

main {
  overflow-x: clip;
}

/* While the page's fonts load (at most 3 seconds, see page.dart), keep
   the paper and hide what is on it, so the first paint is already in
   skribble's hand instead of a fallback font that reflows. */
.inking body > * {
  opacity: 0;
}

body > * {
  transition: opacity 0.3s ease-out;
}

body.skribble-page {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(color-mix(in srgb, var(--ink) 13%, transparent) 1px, transparent 1.5px) 0 0 / 24px 24px,
    var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.6;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.12;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

a:hover {
  color: var(--coral);
}

a:focus-visible,
button:focus-visible,
[contenteditable]:focus-visible,
pre:focus-visible {
  outline: 2px dashed var(--coral);
  outline-offset: 4px;
  border-radius: 4px;
}

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

img,
svg {
  max-width: 100%;
}

.muted {
  color: var(--quiet);
}

.filters {
  position: absolute;
  width: 0;
  height: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 20;
  padding: 8px 14px;
  background: var(--coral);
  color: var(--on-coral);
}

.skip-link:focus {
  top: 12px;
}

/* Native controls stay in the tab order and accessibility tree, hidden
   behind the ink that draws their state. */
.control {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

/* ---------- Ink ---------- */

.ink {
  display: block;
  overflow: visible;
}

.ink--stretch {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

:has(> .ink--stretch) {
  position: relative;
  isolation: isolate;
}

.pen {
  display: none;
}

[data-pen="gentle"] .pen--gentle,
[data-pen="playful"] .pen--playful,
[data-pen="expressive"] .pen--expressive {
  display: block;
}

/* Draw-on: every stroked path has pathLength="1", so one dash covers it. */
.js :is(.draw, .reveal) .ink:not(.check-tick, .task-strike, .chip-fill, .tab-underline, .field-focus) :is(.ink-line, .ink-hatch) {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
}

.js :is(.draw, .reveal) .ink:not(.check-tick, .task-strike, .chip-fill, .tab-underline, .field-focus) .ink-solid {
  opacity: 0;
}

.js :is(.draw, .reveal).is-in .ink:not(.check-tick, .task-strike, .chip-fill, .tab-underline, .field-focus) .ink-line {
  animation: draw 0.9s cubic-bezier(0.65, 0, 0.35, 1) forwards;
  animation-delay: calc(var(--i, 0) * 90ms + var(--d, 0) * 110ms);
}

.js :is(.draw, .reveal).is-in .ink:not(.check-tick, .task-strike, .chip-fill, .tab-underline, .field-focus) .ink-hatch {
  animation: draw 1.3s ease-out forwards;
  animation-delay: calc(var(--i, 0) * 90ms + var(--d, 0) * 110ms + 320ms);
}

.js :is(.draw, .reveal).is-in .ink:not(.check-tick, .task-strike, .chip-fill, .tab-underline, .field-focus) .ink-solid {
  animation: ink-in 0.6s ease-out forwards;
  animation-delay: calc(var(--i, 0) * 90ms + var(--d, 0) * 110ms + 240ms);
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes ink-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* skribble_jaspr ink wipes in like a marker stroke. */
.js .reveal .skribble-highlight > .skribble-ink {
  clip-path: inset(-20% 100% -20% 0);
}

.js .reveal.is-in .skribble-highlight > .skribble-ink {
  animation: wipe 0.7s cubic-bezier(0.65, 0, 0.35, 1) 0.35s forwards;
}

@keyframes wipe {
  to {
    clip-path: inset(-20% -5% -20% 0);
  }
}

.js .reveal {
  opacity: 0;
  transform: translateY(22px) rotate(-0.4deg);
  transition:
    opacity 0.7s ease-out,
    transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  transition-delay: calc(var(--d, 0) * 80ms);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

@keyframes boil {
  0% {
    transform: rotate(-0.7deg) translate(-0.5px, 0.5px);
  }

  50% {
    transform: rotate(0.7deg) translate(0.5px, -0.5px);
  }
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 10px max(16px, (100% - 1180px) / 2);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px dashed color-mix(in srgb, var(--ink) 22%, transparent);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-right: auto;
  text-decoration: none;
}

.brand-logo {
  width: 44px;
  height: 44px;
  transition: transform 0.3s cubic-bezier(0.3, 1.6, 0.5, 1);
}

.brand:hover .brand-logo {
  transform: rotate(-8deg) scale(1.08);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.site-nav ul {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  text-decoration: none;
}

.site-nav a:hover {
  text-decoration: underline wavy var(--coral) 2px;
}

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
}

.theme-toggle[hidden] {
  display: none;
}

.theme-toggle .ink {
  grid-area: 1 / 1;
  transition:
    transform 0.4s cubic-bezier(0.3, 1.6, 0.5, 1),
    opacity 0.2s;
}

.theme-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

:root[data-theme="dark"] .theme-sun {
  opacity: 1;
  transform: none;
}

:root[data-theme="dark"] .theme-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-sun {
    opacity: 1;
    transform: none;
  }

  :root:not([data-theme="light"]) .theme-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
  }
}

@media (max-width: 420px) {
  .install-prompt {
    display: none;
  }

  .install-code {
    font-size: 0.95rem;
  }
}

@media (max-width: 719px) {
  .site-nav li:nth-child(-n + 3) {
    display: none;
  }

  .site-nav a {
    padding: 0 8px;
  }

  .brand-name {
    font-size: 1.45rem;
  }
}

/* ---------- Sections ---------- */

.hero,
.section,
.closing,
.footer-grid,
.site-footer > .skribble-divider {
  width: var(--page);
  margin-inline: auto;
}

.section {
  padding-block: clamp(64px, 10vw, 128px) 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--coral);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section h2 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 800;
}

.lede {
  margin-top: 18px;
  color: var(--quiet);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  margin-top: 40px;
}

.section-actions > code {
  padding: 6px 12px;
  border: 1.5px dashed var(--rule);
  border-radius: 10px;
}

/* ---------- Hero ---------- */

.hero {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  align-items: center;
  padding-block: clamp(36px, 7vw, 88px) clamp(40px, 6vw, 72px);
}

@media (min-width: 960px) {
  .hero {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

.hero-title {
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.04;
}

.hero-highlight {
  position: relative;
  isolation: isolate;
  display: inline-block;
  padding-inline: 0.08em;
  white-space: nowrap;
}

.hero-marker.ink--stretch {
  inset: 0.08em -0.1em -0.02em;
  width: calc(100% + 0.2em);
  height: 0.94em;
  opacity: 0.85;
}

.hero-underline.ink--stretch {
  inset: auto 0 -0.2em;
  height: 0.28em;
  z-index: 1;
}

.js .hero-marker {
  clip-path: inset(-10% 100% -10% 0);
  animation: wipe 0.8s cubic-bezier(0.65, 0, 0.35, 1) 0.25s forwards;
}

.js .hero-underline .ink-line {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  animation: draw 0.7s cubic-bezier(0.65, 0, 0.35, 1) 0.95s forwards;
}

.hero-lede {
  max-width: 600px;
  margin-top: 26px;
  color: var(--quiet);
  font-size: clamp(1.15rem, 2.4vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-actions .skribble-button {
  min-height: 52px;
  padding: 0.6em 1.5em;
  font-size: 1.2rem;
  font-weight: 700;
}

.install {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  align-items: center;
  max-width: 100%;
  margin-top: 30px;
  padding: 10px 10px 10px 18px;
}

.install-prompt {
  color: var(--coral);
  font-family: var(--font-mono);
}

.install-code {
  font-size: 1.05rem;
  user-select: all;
}

.install-copy {
  min-height: 40px;
  padding: 4px 14px;
  border: 1.5px dashed var(--rule);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}

.install-copy:hover {
  border-color: var(--coral);
}

.hero-stage {
  position: relative;
  display: grid;
  justify-items: center;
}

.hero-note {
  display: flex;
  flex-direction: row-reverse;
  gap: 4px;
  align-items: flex-start;
  max-width: 320px;
  margin-top: 6px;
  color: var(--quiet);
  font-size: 1rem;
  transform: rotate(-2deg);
}

.hero-note-arrow {
  flex: none;
  width: 72px;
  height: auto;
  color: var(--quiet);
  transform: scaleY(-1);
}

/* ---------- Phone ---------- */

.phone {
  width: min(330px, 100%);
  aspect-ratio: 1 / 2;
  padding: 16px;
  font-size: 1rem;
  transform: rotate(1.5deg);
}

.phone-frame {
  --skribble-ink: var(--ink);
}

.phone-screen {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
  padding: 18px 14px 18px;
  border-radius: 30px;
  background: var(--paper);
  color: var(--ink);
  transition: background 0.4s, color 0.4s;
}

.phone:has(.phone-dark input:checked) {
  --paper: #1f1a24;
  --ink: #f3ebdf;
  --quiet: #bcb0bf;
  --lilac: #b89ce6;
  --mint: #5cc8b8;
  --coral: #f08e76;
}

/* On dark paper the phone's switch flips it to light paper instead. */
:root[data-theme="dark"] .phone:has(.phone-dark input:checked) {
  --paper: #fffaf0;
  --ink: #34283f;
  --quiet: #6f6273;
  --lilac: #9c7bd4;
  --mint: #3fb3a4;
  --coral: #e87960;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .phone:has(.phone-dark input:checked) {
    --paper: #fffaf0;
    --ink: #34283f;
    --quiet: #6f6273;
    --lilac: #9c7bd4;
    --mint: #3fb3a4;
    --coral: #e87960;
  }
}

.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 2px 10px 0;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.phone-bar {
  padding: 12px 16px;
  min-height: 60px;
}

.phone-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
}

.phone-tasks {
  margin: 0;
  padding: 0 4px;
  list-style: none;
}

.phone-row {
  padding: 0 4px;
}

.phone-row--slider {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 12px;
  align-items: center;
}

.phone-row--slider .slider {
  grid-column: 1 / -1;
  grid-row: 2;
}

.pen-name {
  justify-self: end;
  color: var(--coral);
  font-weight: 700;
}

.phone-card {
  padding: 14px 18px 18px;
}

.streak-title {
  margin-bottom: 8px;
  font-weight: 700;
}

.streak-bar {
  height: 22px;
}

.phone-fab {
  align-self: flex-end;
  margin-top: auto;
  transition: transform 0.3s cubic-bezier(0.3, 1.6, 0.5, 1);
}

.phone-fab:hover {
  transform: rotate(90deg);
}

/* ---------- Controls ---------- */

.row-label,
.field-label {
  font-weight: 700;
}

.task {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: center;
  min-height: 42px;
  cursor: pointer;
}

.check {
  position: relative;
  flex: none;
  width: 28px;
  height: 28px;
}

.check .ink {
  position: absolute;
  inset: 0;
}

.check-tick :is(.ink-line, .ink-solid) {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.check-tick .ink-solid {
  opacity: 0;
  transform: scale(0.4);
  transform-origin: center;
  transform-box: fill-box;
  transition:
    opacity 0.2s,
    transform 0.3s cubic-bezier(0.3, 1.6, 0.5, 1);
}

.control:checked + .check .check-tick .ink-line {
  stroke-dashoffset: 0;
}

.control:checked + .check .check-tick .ink-solid {
  opacity: 1;
  transform: none;
}

.task:hover .check-box {
  animation: boil 0.3s steps(1, end) infinite;
}

.control:focus-visible + .check,
.control:focus-visible ~ .switch,
.control:focus-visible ~ .tab-label,
.control:focus-visible ~ .chip-label,
.control:focus-visible ~ .font-pick-label {
  outline: 2px dashed var(--coral);
  outline-offset: 4px;
  border-radius: 6px;
}

.task-label {
  position: relative;
  transition: color 0.3s;
}

.task-strike.ink--stretch {
  inset: auto -2px;
  top: calc(50% - 6px);
  z-index: 1;
  width: calc(100% + 4px);
  height: 12px;
}

.task-strike .ink-line {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0.45s cubic-bezier(0.65, 0, 0.35, 1) 0.1s;
}

.control:checked ~ .task-label:has(.task-strike) {
  color: var(--quiet);
}

.control:checked ~ .task-label .task-strike .ink-line {
  stroke-dashoffset: 0;
}

.switch-row {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  cursor: pointer;
}

.switch {
  position: relative;
  flex: none;
  width: 58px;
  height: 32px;
}

.switch-track {
  position: absolute;
  inset: 0;
}

.switch-track .ink-hatch {
  opacity: 0;
  transition: opacity 0.3s;
}

.switch-knob {
  position: absolute;
  top: 4px;
  left: 4px;
  transition: transform 0.35s cubic-bezier(0.3, 1.5, 0.5, 1);
}

.control:checked ~ .switch .switch-knob {
  transform: translateX(26px) rotate(180deg);
}

.control:checked ~ .switch .switch-track .ink-hatch {
  opacity: 1;
}

.slider {
  position: relative;
  min-width: 140px;
  height: 32px;
}

.slider-track.ink--stretch {
  top: 6px;
  height: 20px;
}

.slider input[type="range"] {
  position: relative;
  width: 100%;
  height: 32px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.slider input[type="range"]::-webkit-slider-runnable-track {
  height: 32px;
  background: transparent;
}

.slider input[type="range"]::-moz-range-track {
  height: 32px;
  background: transparent;
}

.slider input[type="range"]::-webkit-slider-thumb {
  width: 30px;
  height: 30px;
  margin-top: 1px;
  border: 0;
  background: var(--slider-thumb) center / contain no-repeat;
  transition: transform 0.2s cubic-bezier(0.3, 1.6, 0.5, 1);
  -webkit-appearance: none;
}

.slider input[type="range"]::-moz-range-thumb {
  width: 30px;
  height: 30px;
  border: 0;
  background: var(--slider-thumb) center / contain no-repeat;
}

.slider input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(1.18) rotate(20deg);
}

.slider input[type="range"]:focus-visible {
  outline: 2px dashed var(--coral);
  outline-offset: 2px;
}

.slider-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.slider-value {
  color: var(--coral);
  font-family: var(--font-mono);
  font-weight: 700;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 8px 18px;
  cursor: pointer;
  user-select: none;
}

.chip-fill {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.control:checked ~ .chip-fill {
  clip-path: inset(-10% -10% -10% -10%);
}

.chip:hover .chip-line {
  animation: boil 0.3s steps(1, end) infinite;
}

.field-label {
  display: block;
  margin-bottom: 6px;
}

.field-box {
  min-height: 50px;
}

.field-input {
  width: 100%;
  min-height: 50px;
  padding: 10px 16px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  outline: none;
}

.field-input::placeholder {
  color: var(--quiet);
  opacity: 0.8;
}

.field-ink {
  transition: opacity 0.3s;
}

.field-focus .ink-line {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.65, 0, 0.35, 1);
}

.field-box:focus-within .field-focus .ink-line {
  stroke-dashoffset: 0;
}

.field-box:focus-within .field-ink {
  opacity: 0.25;
}

.progress {
  height: 26px;
  margin-bottom: 10px;
}

.progress .progress-fill {
  animation: progress 3.6s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes progress {
  0% {
    clip-path: inset(0 96% 0 0);
  }

  70%,
  100% {
    clip-path: inset(0 0 0 0);
  }
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tab {
  position: relative;
  padding: 6px 12px 14px;
  cursor: pointer;
}

.tab-label {
  font-weight: 700;
}

.tab-underline.ink--stretch {
  inset: auto 6px 0;
  height: 12px;
  z-index: 0;
}

.tab-underline .ink-line {
  stroke-dasharray: 1 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}

.control:checked ~ .tab-underline .ink-line {
  stroke-dashoffset: 0;
}

.tab-panels {
  margin-top: 12px;
  color: var(--quiet);
}

.tab-panel {
  display: none;
}

.tabs:has(.tab:nth-child(1) .control:checked) .tab-panel:nth-child(1),
.tabs:has(.tab:nth-child(2) .control:checked) .tab-panel:nth-child(2),
.tabs:has(.tab:nth-child(3) .control:checked) .tab-panel:nth-child(3) {
  display: block;
  animation: ink-in 0.35s ease-out;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Marquee ---------- */

.marquee {
  display: flex;
  overflow: hidden;
  margin-block: 24px 0;
  padding-block: 14px;
  background: var(--ink);
  color: var(--paper);
  transform: rotate(-1.4deg) scale(1.03);
}

.marquee-strip {
  display: flex;
  flex: none;
  gap: 28px;
  margin: 0;
  padding: 0 14px;
  list-style: none;
  animation: marquee 48s linear infinite;
}

.marquee:hover .marquee-strip {
  animation-play-state: paused;
}

.marquee li {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  white-space: nowrap;
}

.marquee .ink {
  --ink: var(--paper);
}

@keyframes marquee {
  to {
    transform: translateX(calc(-100% - 28px));
  }
}

/* ---------- Fill gallery ---------- */

.fill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(140px, 28vw, 300px), 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.fill-grid .seed {
  display: none;
}

.fill-grid[data-seed="0"] .seed--0,
.fill-grid[data-seed="1"] .seed--1,
.fill-grid[data-seed="2"] .seed--2 {
  display: block;
}

.fill-grid[data-seed="0"] span.seed--0,
.fill-grid[data-seed="1"] span.seed--1,
.fill-grid[data-seed="2"] span.seed--2 {
  display: inline;
}

.fill-card {
  margin: 0;
}

.fill-art {
  display: grid;
  place-items: center;
  padding: 10px;
}

.fill-art .ink {
  width: 100%;
  height: auto;
  max-width: 260px;
}

.fill-card:hover .fill-art .ink {
  animation: boil 0.32s steps(1, end) infinite;
}

.fill-card figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  justify-content: space-between;
  align-items: baseline;
  padding-inline: 12px;
}

.fill-seed {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.shuffle {
  font-weight: 700;
}

/* ---------- Pens ---------- */

.pen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.pen-card {
  padding: 28px 28px 24px;
}

.pen-card--gentle {
  --font-display: "SkribbleGentle", var(--font-body);
  font-family: "SkribbleGentle", var(--font-body);
}

.pen-card--expressive {
  --font-display: "Skribble", var(--font-body);
  font-family: "Skribble", var(--font-body);
}

.pen-card h3 {
  font-size: 2rem;
  font-weight: 800;
}

.pen-card > p {
  min-height: 3.2em;
  margin-top: 6px;
  color: var(--quiet);
}

.pen-demo {
  display: grid;
  gap: 16px;
  justify-items: start;
  margin-top: 20px;
}

.pen-demo-button {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 22px;
  color: var(--on-coral);
  font-weight: 700;
}

.pen-demo-check {
  display: inline-flex;
  gap: 10px;
  align-items: center;
}

.pen-demo-wave.ink--stretch {
  position: relative;
  inset: auto;
  z-index: 0;
  height: 18px;
}

.pen-stats {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  gap: 4px 10px;
  margin: 22px 0 0;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.pen-stats dd {
  margin: 0;
  color: var(--ink);
}

/* ---------- Playground ---------- */

.play-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.play-card {
  --d: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px 24px 24px;
}

.play-card:nth-child(3n + 2) {
  --d: 1;
}

.play-card:nth-child(3n) {
  --d: 2;
}

.play-head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
}

.play-head h3 {
  font-size: 1.05rem;
}

.play-head code {
  font-size: 1rem;
}

.section h2 .skribble-highlight--circle {
  padding-inline: 0.12em;
}

.play-docs {
  color: var(--quiet);
  font-size: 0.95rem;
}

.play-demo {
  display: grid;
  gap: 4px;
}

/* ---------- Fonts ---------- */

.font-lab {
  --specimen-weight: 700;
  display: grid;
  gap: 24px;
}

.font-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
}

.font-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.font-pick {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 18px;
  font-family: var(--family);
  font-size: 1.1rem;
  cursor: pointer;
}

.font-pick-ink .ink-hatch {
  opacity: 0;
  transition: opacity 0.25s;
}

.font-pick .control:checked ~ .font-pick-ink .ink-hatch {
  opacity: 1;
}

.font-weight {
  display: grid;
  grid-template-columns: auto minmax(160px, 260px) auto;
  gap: 14px;
  align-items: center;
}

.font-weight .field-label {
  margin: 0;
}

.font-weight input[type="range"] {
  accent-color: var(--coral);
}

.specimen {
  padding: clamp(24px, 4vw, 44px);
}

.specimen-text {
  font-family: "SkribblePlayful", var(--font-body);
  font-size: clamp(2.2rem, 7vw, 5.2rem);
  font-weight: var(--specimen-weight);
  line-height: 1.08;
  outline: none;
  overflow-wrap: anywhere;
  transition: font-weight 0.2s;
}

.font-lab:has(.control[value="SkribbleGentle"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "SkribbleGentle", var(--font-body);
}

.font-lab:has(.control[value="Skribble"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "Skribble", var(--font-body);
}

.font-lab:has(.control[value="SkribbleMonoPlayful"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "SkribbleMonoPlayful", var(--font-mono);
}

.font-lab:has(.control[value="SkribbleNoto"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "SkribbleNoto", var(--font-body);
}

.font-lab:has(.control[value="SkribbleNotoSketch"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "SkribbleNotoSketch", var(--font-body);
}

.font-lab:has(.control[value="SkribbleNotoLively"]:checked) .specimen :is(.specimen-text, .specimen-glyphs) {
  font-family: "SkribbleNotoLively", var(--font-body);
}

/* Skribble Noto has one weight. Show it as drawn rather than letting the
   browser fake bold, and set the weight slider aside. */
.font-lab:has(.control[data-package^="skribble_font_noto"]:checked) .specimen-text {
  font-weight: 400;
  font-synthesis: none;
}

.font-lab:has(.control[data-package^="skribble_font_noto"]:checked) .font-weight {
  opacity: 0.4;
  pointer-events: none;
}

.specimen-glyphs {
  margin-top: 18px;
  color: var(--quiet);
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  overflow-wrap: anywhere;
}

/* ---------- Art ---------- */

.emoji-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.emoji {
  display: grid;
  place-items: center;
}

.emoji img {
  width: 72px;
  height: 72px;
  animation: bob 4s ease-in-out infinite;
  animation-delay: calc(var(--d, 0) * -0.6s);
  transition: transform 0.3s cubic-bezier(0.3, 1.6, 0.5, 1);
}

.emoji:hover img {
  filter: url(#wobble-a);
  animation: wobble-boil 0.3s steps(1, end) infinite;
  transform: scale(1.25) rotate(-8deg);
}

@keyframes bob {
  0%,
  100% {
    translate: 0 0;
    rotate: -2deg;
  }

  50% {
    translate: 0 -6px;
    rotate: 2deg;
  }
}

@keyframes wobble-boil {
  0% {
    filter: url(#wobble-a);
  }

  50% {
    filter: url(#wobble-b);
  }
}

.icon-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 12px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.icon {
  display: grid;
  gap: 6px;
  justify-items: center;
  padding: 12px 4px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.icon svg {
  transition:
    transform 0.3s cubic-bezier(0.3, 1.6, 0.5, 1),
    color 0.2s;
}

.icon:hover svg {
  color: var(--coral);
  transform: rotate(-10deg) scale(1.15);
}

.icon span {
  color: var(--quiet);
}

/* ---------- Code ---------- */

.code-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 960px) {
  .code-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.code-card {
  min-width: 0;
  padding: 0;
}

.code-card pre {
  margin: 0;
  padding: clamp(18px, 3vw, 30px);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  line-height: 1.7;
}

.code-card code {
  font-size: inherit;
}

.tok-k {
  color: var(--tok-k);
  font-weight: 700;
}

.tok-s {
  color: var(--tok-s);
}

.tok-t {
  color: var(--tok-t);
}

.tok-f {
  color: var(--tok-f);
}

.tok-a {
  color: var(--tok-a);
}

.app-preview-figure {
  display: grid;
  gap: 12px;
  margin: 0;
}

.app-preview {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 300px;
  padding: 0;
}

.app-preview-bar {
  position: relative;
  padding: 18px 22px 16px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.app-preview-rule {
  position: absolute;
  right: 10px;
  bottom: -4px;
  left: 10px;
  width: calc(100% - 20px);
  max-width: none;
  height: 10px;
}

.app-preview-body {
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.app-preview-figure figcaption {
  color: var(--quiet);
  font-size: 0.95rem;
  text-align: center;
}

/* ---------- Beyond ---------- */

.beyond-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: clamp(20px, 3vw, 32px);
}

.beyond-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 28px;
}

.beyond-card .skribble-ink-hatch {
  opacity: 0.35;
}

.beyond-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
}

.arrow-link {
  font-weight: 700;
}

.arrow-link::after {
  content: " →";
  display: inline-block;
  transition: transform 0.2s;
}

.arrow-link:hover::after {
  transform: translateX(4px);
}

/* ---------- Closing ---------- */

.closing {
  display: grid;
  justify-items: center;
  gap: 14px;
  margin-block: clamp(80px, 12vw, 140px) clamp(48px, 8vw, 96px);
  padding: clamp(48px, 8vw, 88px) 24px;
  text-align: center;
}

.closing-ink .ink-hatch {
  opacity: 0.55;
}

.closing h2 {
  font-size: clamp(2.8rem, 8vw, 5.4rem);
  font-weight: 800;
}

.closing p {
  max-width: 520px;
  font-size: 1.25rem;
}

.closing .hero-actions {
  justify-content: center;
  margin-top: 12px;
}

/* ---------- Footer ---------- */

.site-footer {
  padding-bottom: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 28px;
}

.footer-grid h2 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.footer-grid ul {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-grid a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  color: var(--quiet);
  text-decoration: none;
}

.footer-grid a:hover {
  color: var(--coral);
  text-decoration: underline wavy var(--coral) 2px;
}

.footer-note {
  font-size: 0.95rem;
}

.footer-doodle {
  margin-top: 14px;
}

/* ---------- Not found ---------- */

.lost {
  display: grid;
  justify-items: center;
  gap: 18px;
  width: var(--page);
  margin: clamp(48px, 10vw, 120px) auto;
  text-align: center;
}

.lost h1 {
  font-size: clamp(2.4rem, 7vw, 4.4rem);
  font-weight: 800;
}

.lost .hero-actions {
  justify-content: center;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0s !important;
    transition-duration: 0.001ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }

  .marquee-strip {
    animation: none !important;
  }

  .marquee {
    overflow-x: auto;
  }

  .emoji img,
  .emoji:hover img {
    animation: none !important;
    filter: none;
  }
}