/* Demo page styles. The checklist itself uses the package's default
   stylesheet; only the themes below touch its custom properties. */

:root {
  color-scheme: light;
  --ink: #0f172a;
  --ink-soft: #475569;
  --line: #e2e8f0;
  --line-strong: #94a3b8;
  --surface: #ffffff;
  --canvas: #f8fafc;
  --brand: #4338ca;
  --brand-ink: #ffffff;
  --brand-soft: #eef2ff;
  --focus: #2563eb;
  --radius: 0.75rem;
  --shadow: 0 1px 2px rgb(15 23 42 / 6%), 0 8px 24px rgb(15 23 42 / 8%);
  --mono:
    ui-monospace, 'SFMono-Regular', 'Cascadia Code', Menlo, Consolas, monospace;
}

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
  line-height: 1.55;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.875em;
}

/* Long identifiers must not widen the page on narrow screens. */
:not(pre) > code {
  overflow-wrap: anywhere;
}

a {
  color: var(--brand);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.wrap {
  width: min(72rem, 100% - 2rem);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100vh;
  left: 1rem;
  z-index: 1;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}

.skip-link:focus {
  top: 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

.hero {
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(60rem 24rem at 85% -10%, #e0e7ff, transparent 70%),
    radial-gradient(40rem 20rem at 0% 0%, #f0f9ff, transparent 70%),
    var(--surface);
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--brand);
  font-weight: 600;
}

.badge {
  padding: 0.125rem 0.5rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 20ch;
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 60ch;
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  font-size: 1.125rem;
}

.hero-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-nav a {
  padding: 0.5rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
}

.hero-nav a:first-child {
  border-color: var(--brand);
  background: var(--brand);
  color: var(--brand-ink);
}

/* --- Install command ----------------------------------------------------- */

.install {
  max-width: 26rem;
  margin: 0 0 1.5rem;
}

.install__row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.375rem 0.375rem 0.875rem;
  border-radius: 0.5rem;
  background: var(--ink);
  color: #e2e8f0;
}

.install__prompt {
  font-family: var(--mono);
  font-size: 0.875rem;
  opacity: 0.65;
  user-select: none;
}

.install__row code {
  flex: 1;
  min-width: 0;
  font-size: 0.875rem;
  user-select: all;
}

.install__copy {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 0.375rem;
  min-height: 2.75rem;
  padding: 0.25rem 0.75rem;
  border: 1px solid currentColor;
  border-radius: 0.375rem;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
}

.install__copy:hover {
  background: rgb(255 255 255 / 12%);
}

/* The page's blue focus ring is too faint on the dark row. */
.install__copy:focus-visible {
  outline-color: #e2e8f0;
}

.install__copy svg {
  display: block;
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

/* Must outrank `.install__copy svg` above. */
.install__copy .install__check,
.install__copy.is-copied .install__icon {
  display: none;
}

.install__copy.is-copied .install__check {
  display: block;
}

.install__status {
  min-height: 1.5em;
  margin: 0.375rem 0 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
}

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

.section {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

/* Child combinator: must not restyle the checklist widget's own <h2>. */
.section > h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.01em;
}

.section-intro {
  max-width: 65ch;
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
}

/* --- Buttons and fields -------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.5rem;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
}

.btn:hover {
  background: var(--canvas);
}

.btn--primary {
  border-color: var(--brand);
  background: var(--brand);
  color: var(--brand-ink);
}

.btn--primary:hover {
  background: #3730a3;
}

.btn--small {
  min-height: 2.25rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
}

.btn code {
  font-size: 0.85em;
}

.field {
  display: grid;
  gap: 0.25rem;
  max-width: 24rem;
  font-weight: 500;
}

.field input {
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.5rem;
  font: inherit;
}

.field-hint {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
}

/* --- Demo layout --------------------------------------------------------- */

.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
  gap: 1.5rem;
  align-items: start;
}

.app {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app__bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--canvas);
}

.app__dots {
  display: inline-flex;
  gap: 0.375rem;
}

.app__dots span {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--line-strong);
}

.app__name {
  font-weight: 600;
}

.app__setup {
  margin-inline-start: auto;
  padding: 0.125rem 0.625rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
}

.app__toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
}

.app__body {
  display: grid;
  gap: 1rem;
  min-height: 15rem;
  padding: 1.25rem;
}

.app__empty {
  align-self: center;
  justify-self: center;
  max-width: 30ch;
  color: var(--ink-soft);
  text-align: center;
}

.app__empty-title {
  margin: 0 0 0.25rem;
  color: var(--ink);
  font-size: 1.125rem;
  font-weight: 600;
}

.panel {
  display: grid;
  gap: 0.75rem;
}

.panel[hidden],
.app__empty[hidden],
.app__projects[hidden] {
  display: none;
}

.panel__title {
  margin: 0;
  font-size: 1.125rem;
}

.panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.app__projects {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app__projects li {
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--canvas);
  font-weight: 500;
}

.app__projects li::before {
  content: '▣ ';
  color: var(--brand);
}

.sidebar {
  display: grid;
  gap: 1rem;
}

.sidebar .stepr-checklist {
  box-shadow: var(--shadow);
}

.done {
  padding: 1rem;
  border: 1px solid #86efac;
  border-radius: var(--radius);
  background: #f0fdf4;
}

.done[hidden] {
  display: none;
}

.done p {
  margin: 0 0 0.75rem;
}

.done__title {
  color: #166534;
  font-size: 1.125rem;
  font-weight: 700;
}

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

.playground {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.controls,
.log,
.card,
.example {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.controls h3,
.log h3,
.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.toggle {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  font-weight: 500;
  cursor: pointer;
}

.toggle input,
.themes input {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0.125rem 0 0;
  flex: none;
  accent-color: var(--brand);
}

.toggle__hint {
  display: block;
  color: var(--ink-soft);
  font-size: 0.875rem;
  font-weight: 400;
}

.themes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.themes legend {
  margin-bottom: 0.5rem;
  padding: 0;
  font-weight: 500;
}

.themes label {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  min-height: 2.75rem;
  cursor: pointer;
}

.log__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.log__head h3 {
  margin: 0;
}

.log__empty {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
}

.log__empty[hidden] {
  display: none;
}

.log__list {
  display: grid;
  gap: 0.375rem;
  max-height: 16rem;
  margin: 0.75rem 0 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  font-size: 0.875rem;
}

.log__list li {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
}

.log__source {
  flex: none;
  min-width: 4.75rem;
  padding: 0 0.375rem;
  border-radius: 0.25rem;
  background: var(--canvas);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-align: center;
}

.log__source--onChange {
  background: #dcfce7;
  color: #166534;
}

.log__source--stepr {
  background: #e0f2fe;
  color: #075985;
}

.log__source--api {
  background: var(--brand-soft);
  color: var(--brand);
}

/* --- Examples ------------------------------------------------------------ */

.example {
  margin-bottom: 1.25rem;
}

.example__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.example h3 {
  margin: 0;
  font-size: 1.125rem;
}

.example p {
  max-width: 70ch;
  color: var(--ink-soft);
}

.example pre {
  margin: 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  border-radius: 0.5rem;
  background: var(--ink);
  color: #e2e8f0;
  line-height: 1.6;
  tab-size: 2;
}

.example pre code {
  font-size: 0.8125rem;
}

/* --- Reference ----------------------------------------------------------- */

.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.defs {
  margin: 0;
}

.defs dt {
  margin-top: 0.75rem;
  font-weight: 600;
}

.defs dt:first-child {
  margin-top: 0;
}

.defs dd {
  margin: 0.125rem 0 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.plain {
  margin: 0;
  padding-inline-start: 1.125rem;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.plain li + li {
  margin-top: 0.5rem;
}

.note {
  margin: 1rem 0 0;
  padding: 0.5rem 0.75rem;
  border-left: 3px solid #f59e0b;
  background: #fffbeb;
  font-size: 0.875rem;
}

.card p {
  color: var(--ink-soft);
}

.table-scroll {
  overflow-x: auto;
}

.props {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.props th,
.props td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: start;
}

.footer {
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.875rem;
}

.footer p {
  margin: 0;
}

/* --- Widget themes (CSS custom properties) ------------------------------- */

/* <div id="onboarding" class="theme-violet"></div> */
.theme-violet {
  --stepr-checklist-accent: #6d28d9;
  --stepr-checklist-focus: #6d28d9;
  --stepr-checklist-background: #faf5ff;
  --stepr-checklist-hover: #f3e8ff;
  --stepr-checklist-border: #8b5cf6;
  --stepr-checklist-radius: 1rem;
}

.theme-midnight {
  --stepr-checklist-background: #0f172a;
  --stepr-checklist-foreground: #e2e8f0;
  --stepr-checklist-muted: #94a3b8;
  --stepr-checklist-border: #64748b;
  --stepr-checklist-hover: #1e293b;
  --stepr-checklist-accent: #38bdf8;
  --stepr-checklist-accent-foreground: #0f172a;
  --stepr-checklist-focus: #7dd3fc;
}

/* --- Responsive ---------------------------------------------------------- */

@media (max-width: 56rem) {
  .demo-grid,
  .playground {
    grid-template-columns: minmax(0, 1fr);
  }

  /* Show the checklist first on small screens: it drives the demo. */
  .sidebar {
    order: -1;
  }
}