/* Vapour Cleaner landing page.
 * Native-Mac direction: San Francisco type, the real app in a lit frame with its own steam rising,
 * a vapour you can try on the page, a tabbed tour of full app windows. Colours from tokens.css. */
@import url("/tokens.css");

*, *::before, *::after { box-sizing: border-box; min-width: 0; }
html { color-scheme: dark; overflow-x: clip; -webkit-text-size-adjust: 100%; text-wrap: pretty; scroll-behavior: smooth; scroll-padding-block-start: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; min-height: 100svh; overflow-x: clip;
  background: var(--color-paper); color: var(--color-ink);
  font: 400 1.0625rem / 1.55 var(--font-body);
  -webkit-font-smoothing: antialiased; font-feature-settings: "ss01";
}
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.03em; text-wrap: balance; }
img { display: block; max-inline-size: 100%; block-size: auto; }
a { color: inherit; text-decoration: none; }
a, button, summary, label { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; border-radius: 6px; }
.visually-hidden { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.container { inline-size: min(100% - var(--page-gutter) * 2, 74rem); margin-inline: auto; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.todo { background: var(--color-paper-3); padding-inline: 0.25rem; border-radius: 4px; }

/* Light: deep blue paper, teal glow pooled behind the hero. */
.sky { position: absolute; inset: 0 0 auto; block-size: 70rem; z-index: -1; pointer-events: none; overflow: hidden;
  background:
    radial-gradient(60rem 34rem at 50% 18rem, oklch(83% 0.11 190 / 0.20), transparent 70%),
    radial-gradient(40rem 30rem at 85% 4rem, oklch(70% 0.10 240 / 0.18), transparent 70%),
    linear-gradient(oklch(22% 0.06 250), var(--color-paper) 60rem); }

/* ─── Buttons ───────────────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; white-space: nowrap;
  min-block-size: 3rem; padding: 0 1.4rem; border-radius: 999px; border: 0; cursor: pointer;
  font: 600 1rem / 1 var(--font-body); letter-spacing: -0.01em;
  transition: transform 160ms var(--ease-out), background-color 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
.btn svg { inline-size: 1.05em; block-size: 1.05em; flex: none; }
.btn-primary { background: var(--color-accent); color: var(--color-accent-ink);
  box-shadow: 0 0 0 1px oklch(90% 0.1 190 / 0.6) inset, 0 10px 30px -10px oklch(83% 0.11 190 / 0.7); }
.btn-ghost { background: oklch(97% 0.008 230 / 0.08); color: var(--color-ink); box-shadow: 0 0 0 1px var(--color-ring) inset; }
.btn-small { min-block-size: 2.25rem; padding: 0 1rem; font-size: 0.875rem; }
.btn:active { transform: scale(0.97); }
@media (hover: hover) {
  .btn-primary:hover { background: oklch(88% 0.12 190); }
  .btn-ghost:hover { background: oklch(97% 0.008 230 / 0.14); }
}
.btn[disabled] { opacity: 0.5; cursor: default; }

/* ─── Nav ───────────────────────────────────────────────────────────────── */
.nav { position: sticky; inset-block-start: 0; z-index: var(--z-sticky); transition: background-color 250ms, box-shadow 250ms; }
.nav.is-scrolled { background: oklch(24% 0.06 249 / 0.72); -webkit-backdrop-filter: saturate(160%) blur(18px); backdrop-filter: saturate(160%) blur(18px);
  box-shadow: 0 1px 0 var(--color-ring); }
.nav .container { display: flex; align-items: center; gap: 1.5rem; block-size: 4rem; }
.nav .logo img { block-size: 1.85rem; inline-size: auto; }
.nav nav { margin-inline-end: auto; }
.nav ul { display: flex; gap: 1.75rem; list-style: none; padding: 0; margin: 0 0 0 1.5rem; }
.nav ul a { font-size: 0.9rem; font-weight: 500; color: var(--color-ink-2); transition: color 150ms; }
.nav ul a:hover { color: var(--color-ink); }
@media (max-width: 52rem) { .nav ul { display: none; } .nav .btn { margin-inline-start: auto; } }

/* ─── Hero ──────────────────────────────────────────────────────────────── */
.hero { text-align: center; padding-block: clamp(2.5rem, 5vw, 4.5rem) 0; }
.pill { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.35rem 0.85rem 0.35rem 0.6rem; border-radius: 999px;
  background: oklch(97% 0.008 230 / 0.06); box-shadow: 0 0 0 1px var(--color-ring) inset;
  font-size: 0.8125rem; font-weight: 500; color: var(--color-ink-2); }
.pill::before { content: ""; inline-size: 0.5rem; block-size: 0.5rem; border-radius: 50%; background: var(--color-accent);
  box-shadow: 0 0 0 4px oklch(83% 0.11 190 / 0.18); }
.hero h1 { margin-block: 1.25rem 1.1rem; font-size: clamp(3rem, 6.4vw + 0.5rem, 6rem); line-height: 0.95; letter-spacing: -0.05em; }
/* "stale" fades like a file nobody opens: the brand's one graphic idea, used once. */
.hero h1 .stale { background: linear-gradient(100deg, var(--color-ink) 15%, oklch(97% 0.008 230 / 0.22) 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent; padding-inline-end: 0.04em; }
.hero .sub { max-inline-size: 38rem; margin-inline: auto; font-size: clamp(1.1rem, 0.5vw + 1rem, 1.3rem); line-height: 1.5; color: var(--color-ink-2); }
.hero .ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-block: 1.75rem 0.9rem; }
.hero .meta { font-size: 0.85rem; color: var(--color-muted); }

.stage { position: relative; margin-block-start: clamp(2.5rem, 4.5vw, 4rem); perspective: 2000px; }
.stage canvas { position: absolute; inset: -30% 0 40%; inline-size: 100%; block-size: 90%; pointer-events: none; z-index: 1; }
.window { position: relative; z-index: 2; inline-size: min(100% - var(--page-gutter) * 2, 80rem); margin-inline: auto;
  border-radius: clamp(8px, 1.1vw, 14px); overflow: hidden;
  box-shadow: 0 0 0 1px oklch(97% 0.008 230 / 0.14), 0 40px 120px -30px oklch(10% 0.05 250 / 0.9), 0 0 120px -20px oklch(83% 0.11 190 / 0.25);
  transform-origin: 50% 100%; }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .window { animation: settle linear both; animation-timeline: view(); animation-range: entry 0% cover 45%; }
    @keyframes settle { from { transform: rotateX(18deg) scale(0.94); } to { transform: none; } }
  }
}
.stage::after { /* pool of light under the window */
  content: ""; position: absolute; inset: auto 10% -4rem; block-size: 8rem; z-index: 0;
  background: radial-gradient(closest-side, oklch(83% 0.11 190 / 0.35), transparent); filter: blur(30px); }

/* ─── Promise strip ─────────────────────────────────────────────────────── */
.promises { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem 2.25rem; padding-block: clamp(4rem, 8vw, 6rem) 0;
  list-style: none; padding-inline: 0; color: var(--color-ink-2); font-size: 0.95rem; font-weight: 500; }
.promises li { display: inline-flex; align-items: center; gap: 0.55rem; }
.promises svg { inline-size: 1.15rem; block-size: 1.15rem; color: var(--color-accent); flex: none; }

/* ─── Section heads ─────────────────────────────────────────────────────── */
section.block { padding-block: clamp(5rem, 10vw, 8.5rem) 0; }
.head { max-inline-size: 44rem; margin-block-end: clamp(2rem, 4vw, 3.25rem); }
.head.center { margin-inline: auto; text-align: center; }
.kicker { display: block; margin-block-end: 0.85rem; font-size: 0.9rem; font-weight: 600; color: var(--color-accent); letter-spacing: -0.01em; }
.head h2 { font-size: clamp(2.2rem, 3.6vw + 0.8rem, 3.75rem); line-height: 1.02; }
.head p { margin-block-start: 1rem; font-size: 1.15rem; color: var(--color-ink-2); }

/* ─── Try it ────────────────────────────────────────────────────────────── */
.try { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (min-width: 62rem) { .try { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } .try .head { margin: 0; } }
.try .head ol { margin-block-start: 1.5rem; padding: 0; list-style: none; display: grid; gap: 0.6rem; color: var(--color-ink-2); counter-reset: s; }
.try .head ol li { display: flex; gap: 0.75rem; align-items: baseline; counter-increment: s; }
.try .head ol li::before { content: counter(s); flex: none; display: grid; place-items: center; inline-size: 1.5rem; block-size: 1.5rem; border-radius: 50%;
  background: oklch(83% 0.11 190 / 0.14); color: var(--color-accent); font-size: 0.8rem; font-weight: 700; }

.demo { position: relative; border-radius: 22px; padding: 1.25rem; isolation: isolate;
  background: linear-gradient(oklch(31% 0.06 248), oklch(27% 0.06 249));
  box-shadow: 0 0 0 1px var(--color-ring), 0 30px 80px -30px oklch(10% 0.05 250 / 0.9); }
.disk { display: grid; gap: 0.6rem; padding: 0.25rem 0.35rem 1.1rem; }
.disk-top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; font-size: 0.9rem; color: var(--color-muted); }
.disk-top strong { font-size: 1.5rem; color: var(--color-ink); font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.disk-bar { block-size: 0.6rem; border-radius: 999px; background: oklch(97% 0.008 230 / 0.08); overflow: hidden; }
.disk-bar span { display: block; block-size: 100%; inline-size: var(--used, 87%); border-radius: inherit;
  background: linear-gradient(90deg, oklch(70% 0.10 240), oklch(83% 0.11 190)); transition: inline-size 1.2s var(--ease-out); }
.files { list-style: none; padding: 0; display: grid; gap: 2px; }
.file { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 0.85rem; align-items: center;
  padding: 0.65rem 0.75rem; border-radius: 12px; cursor: pointer; opacity: calc(1 - var(--age, 0) * 0.55);
  transition: background-color 150ms, opacity 300ms; }
.file:hover { background: oklch(97% 0.008 230 / 0.05); }
.file:has(input:checked) { background: oklch(83% 0.11 190 / 0.09); opacity: 1; }
.file input { appearance: none; margin: 0; inline-size: 1.25rem; block-size: 1.25rem; border-radius: 50%; cursor: pointer;
  box-shadow: 0 0 0 1.5px var(--color-muted) inset; display: grid; place-items: center; transition: background-color 150ms, box-shadow 150ms; }
.file input:checked { background: var(--color-accent); box-shadow: none; }
.file input:checked::after { content: ""; inline-size: 0.35rem; block-size: 0.6rem; border: solid var(--color-accent-ink); border-width: 0 2px 2px 0; transform: translateY(-1px) rotate(45deg); }
.file .name { font-weight: 600; font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file .when { display: block; font: 400 0.78rem / 1.3 var(--font-mono); color: var(--color-muted); }
.file .size { font-size: 0.9rem; font-variant-numeric: tabular-nums; color: var(--color-ink-2); }
.file .tag { margin-inline-start: 0.4rem; padding: 0.1rem 0.4rem; border-radius: 5px; font: 700 0.62rem / 1.4 var(--font-body); letter-spacing: 0.04em;
  text-transform: uppercase; vertical-align: 0.12em; background: oklch(83% 0.11 190 / 0.16); color: var(--color-accent); }
.file.is-gone { pointer-events: none; }
@media (max-width: 30rem) { .demo { padding: 0.75rem; } .file { gap: 0.65rem; padding-inline: 0.5rem; } .file .tag { display: none; } }
.demo-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-block-start: 1rem; padding: 0.75rem 0.75rem 0.75rem 1.1rem;
  border-radius: 16px; background: oklch(18% 0.05 250 / 0.6); box-shadow: 0 0 0 1px var(--color-ring); }
.demo-bar .total { font-weight: 700; font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.demo-bar .total small { display: block; font-weight: 500; font-size: 0.78rem; color: var(--color-muted); }
.puff { position: absolute; z-index: 3; inline-size: 5rem; block-size: 5rem; pointer-events: none; opacity: 0; filter: brightness(1.1); }
.demo-note { margin-block-start: 0.85rem; text-align: center; font-size: 0.8rem; color: var(--color-muted); }

/* ─── Tour ──────────────────────────────────────────────────────────────── */
.tabs { display: flex; gap: 0.25rem; padding: 0.3rem; margin-inline: auto; inline-size: max-content; max-inline-size: 100%; overflow-x: auto;
  border-radius: 999px; background: oklch(97% 0.008 230 / 0.06); box-shadow: 0 0 0 1px var(--color-ring) inset; scrollbar-width: none; }
.tabs button { flex: none; border: 0; background: none; cursor: pointer; padding: 0.55rem 1.05rem; border-radius: 999px;
  font-size: 0.9rem; font-weight: 600; color: var(--color-ink-2); transition: background-color 200ms, color 200ms; }
.tabs button[aria-selected="true"] { background: var(--color-ink); color: var(--color-paper); }
.tab-caption { min-block-size: 3.2em; max-inline-size: 40rem; margin: 1.5rem auto 2rem; text-align: center; color: var(--color-ink-2); font-size: 1.05rem; }
.tab-caption strong { color: var(--color-ink); }
.screens { position: relative; inline-size: min(100% - var(--page-gutter) * 2, 80rem); margin-inline: auto; aspect-ratio: 16 / 10;
  border-radius: clamp(8px, 1.1vw, 14px); overflow: hidden;
  box-shadow: 0 0 0 1px oklch(97% 0.008 230 / 0.14), 0 40px 120px -30px oklch(10% 0.05 250 / 0.9), 0 0 100px -30px oklch(83% 0.11 190 / 0.3); }
.screens img { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; object-fit: cover; opacity: 0; transition: opacity 450ms var(--ease-out); }
.screens img.is-on { opacity: 1; }

/* ─── Safety bento ──────────────────────────────────────────────────────── */
.bento { display: grid; gap: 1rem; }
@media (min-width: 56rem) { .bento { grid-template-columns: repeat(3, minmax(0, 1fr)); } .bento .big { grid-column: span 2; grid-row: span 2; } }
.card { position: relative; overflow: hidden; display: grid; align-content: start; gap: 0.6rem; padding: 1.75rem; border-radius: 22px;
  background: linear-gradient(oklch(31% 0.06 248), oklch(28% 0.06 249)); box-shadow: 0 0 0 1px var(--color-ring); }
.card .icon { display: grid; place-items: center; inline-size: 2.75rem; block-size: 2.75rem; margin-block-end: 0.5rem; border-radius: 12px;
  background: oklch(83% 0.11 190 / 0.13); color: var(--color-accent); }
.card .icon svg { inline-size: 1.4rem; block-size: 1.4rem; }
.card h3 { font-size: 1.3rem; letter-spacing: -0.02em; }
.card p { color: var(--color-ink-2); font-size: 0.98rem; }
.card.big { gap: 0.75rem; }
.card.big h3 { font-size: clamp(1.6rem, 1.5vw + 1rem, 2.1rem); line-height: 1.1; }
.card.big::after { content: ""; position: absolute; inset: auto -20% -50% 30%; block-size: 70%; z-index: 0;
  background: radial-gradient(closest-side, oklch(65% 0.2 25 / 0.16), transparent); pointer-events: none; }
/* A faithful HTML rebuild of the app's review warning, sharp at any size. */
.warning { position: relative; z-index: 1; margin-block-start: 1.25rem; padding: 1.1rem 1.2rem; border-radius: 14px;
  background: oklch(32% 0.07 20 / 0.55); box-shadow: 0 0 0 1px oklch(65% 0.18 22 / 0.55) inset; display: grid; gap: 0.5rem; }
.warning .title { display: flex; gap: 0.55rem; align-items: center; font-weight: 700; }
.warning .title svg { inline-size: 1.1rem; block-size: 1.1rem; color: oklch(70% 0.2 25); flex: none; }
.warning .why { font-size: 0.9rem; color: oklch(90% 0.02 30); }
.warning .why b { color: var(--color-ink); }
.warning label { display: flex; gap: 0.65rem; align-items: center; margin-block-start: 0.35rem; padding: 0.6rem 0.75rem; border-radius: 10px;
  background: oklch(18% 0.04 20 / 0.5); font-size: 0.9rem; font-weight: 600; cursor: pointer; }
.warning input { appearance: none; margin: 0; inline-size: 1.1rem; block-size: 1.1rem; border-radius: 5px; box-shadow: 0 0 0 1.5px oklch(85% 0.03 30) inset; display: grid; place-items: center; cursor: pointer; }
.warning input:checked { background: var(--color-accent); box-shadow: none; }
.warning input:checked::after { content: ""; inline-size: 0.3rem; block-size: 0.55rem; border: solid var(--color-accent-ink); border-width: 0 2px 2px 0; transform: translateY(-1px) rotate(45deg); }
.warning .go { justify-self: end; margin-block-start: 0.35rem; }
.levels { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 0.5rem; margin-block-start: auto; padding-block-start: 1rem; }
.levels span { padding: 0.3rem 0.65rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; background: oklch(97% 0.008 230 / 0.07); color: var(--color-ink-2); }
.levels span::before { content: ""; display: inline-block; inline-size: 0.45rem; block-size: 0.45rem; margin-inline-end: 0.4rem; border-radius: 50%; background: var(--dot); vertical-align: 0.05em; }

/* ─── Pricing ───────────────────────────────────────────────────────────── */
.plans { display: grid; gap: 1rem; max-inline-size: 56rem; margin-inline: auto; }
@media (min-width: 48rem) { .plans { grid-template-columns: 1fr 1fr; } }
.plans.single { max-inline-size: 30rem; grid-template-columns: 1fr; }
.plan { display: grid; align-content: start; gap: 1.1rem; padding: 2rem; border-radius: 24px;
  background: oklch(97% 0.008 230 / 0.04); box-shadow: 0 0 0 1px var(--color-ring) inset; }
.plan.paid { background: linear-gradient(160deg, oklch(36% 0.08 215), oklch(29% 0.065 245) 60%);
  box-shadow: 0 0 0 1px oklch(83% 0.11 190 / 0.45) inset, 0 30px 80px -30px oklch(83% 0.11 190 / 0.35); }
.plan h3 { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; color: var(--color-ink-2); }
.plan .amount { font: 700 3.5rem / 1 var(--font-display); letter-spacing: -0.05em; }
.plan .amount small { font-size: 1rem; font-weight: 500; letter-spacing: 0; color: var(--color-muted); margin-inline-start: 0.35rem; }
.plan ul { list-style: none; padding: 0; display: grid; gap: 0.6rem; color: var(--color-ink-2); font-size: 0.97rem; }
.plan li { display: flex; gap: 0.6rem; align-items: baseline; }
.plan li::before { content: ""; flex: none; inline-size: 0.85rem; block-size: 0.45rem; border: solid var(--color-accent); border-width: 0 0 2px 2px; transform: translateY(-0.15em) rotate(-45deg); }
.plan .btn { justify-self: stretch; margin-block-start: 0.5rem; }
.plan .fine { font-size: 0.82rem; color: var(--color-muted); }
.plan .fine a { text-decoration: underline; text-underline-offset: 2px; }

/* ─── FAQ ───────────────────────────────────────────────────────────────── */
.faq { max-inline-size: 48rem; margin-inline: auto; display: grid; gap: 0.6rem; }
.faq details { border-radius: 16px; background: oklch(97% 0.008 230 / 0.04); box-shadow: 0 0 0 1px var(--color-ring) inset; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.15rem 1.35rem; font-weight: 600; font-size: 1.05rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; inline-size: 0.6rem; block-size: 0.6rem; border: solid var(--color-muted); border-width: 0 2px 2px 0;
  transform: rotate(45deg) translateY(-2px); transition: transform 200ms var(--ease-out); }
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.faq details p { padding: 0 1.35rem 1.25rem; color: var(--color-ink-2); }
.faq details a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }

/* ─── Final call ────────────────────────────────────────────────────────── */
.final { position: relative; isolation: isolate; text-align: center; margin-block-start: clamp(5rem, 10vw, 8.5rem);
  padding-block: clamp(5rem, 10vw, 8rem); overflow: hidden; }
.final::before { content: ""; position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(50rem 26rem at 50% 100%, oklch(83% 0.11 190 / 0.22), transparent 70%); }
.final h2 { font-size: clamp(2.6rem, 5vw + 1rem, 5rem); line-height: 1; letter-spacing: -0.045em; }
.final p { margin-block: 1.1rem 2rem; color: var(--color-ink-2); font-size: 1.15rem; }
.final .ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }

/* ─── Footer ────────────────────────────────────────────────────────────── */
.foot { border-block-start: 1px solid var(--color-ring); padding-block: 2.5rem calc(3rem + env(safe-area-inset-bottom, 0px)); }
.foot .container { display: grid; gap: 1.25rem 3rem; }
@media (min-width: 52rem) { .foot .container { grid-template-columns: auto 1fr; align-items: start; } .foot .links, .foot .legal { grid-column: 2; } }
.foot .logo img { block-size: 2rem; inline-size: auto; }
.foot .tagline { color: var(--color-ink-2); }
.foot .links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; list-style: none; padding: 0; font-size: 0.9rem; color: var(--color-ink-2); }
.foot .links a:hover { color: var(--color-ink); }
.foot .legal { font-size: 0.8rem; color: var(--color-muted); max-inline-size: 70ch; }

/* ─── Reveal on scroll ──────────────────────────────────────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .reveal { transition: opacity 700ms var(--ease-out), translate 700ms var(--ease-out); }
  .reveal.is-pending { opacity: 0; translate: 0 1.75rem; }
  .hero > * { animation: rise 900ms var(--ease-out) both; animation-delay: calc(var(--i, 0) * 70ms); }
  @keyframes rise { from { opacity: 0; translate: 0 14px; } }
}