:root {
  --paper: #efefec;
  --ink: #0b0b0b;
  --mist: #85857f;
  --rule: rgba(11, 11, 11, .14);
  --green: #30d158;
  --amber: #ff9f0a;

  /* Apple's own typefaces: SF Pro on Apple devices (system font), Inter elsewhere. */
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;

  --spring: cubic-bezier(.3, 1.3, .5, 1);
  --gutter: clamp(20px, 5vw, 72px);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.55 var(--body);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 6px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.eyebrow {
  margin: 0 0 18px;
  font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--mist);
}

.btn {
  display: inline-flex; align-items: center; height: 50px; padding: 0 26px;
  border-radius: 999px; background: var(--ink); color: var(--paper);
  font: 600 16px/1 var(--body); text-decoration: none;
  transition: transform .25s var(--spring);
}
.btn:hover { transform: translateY(-2px); }
.btn--light { background: var(--paper); color: var(--ink); }
.btn--outline { background: transparent; color: var(--paper); box-shadow: inset 0 0 0 1.5px rgba(239, 239, 236, .4); }
.meta { font: 500 12px/1.4 var(--mono); color: var(--mist); letter-spacing: .04em; }

/* ---------- the notch ---------- */
.notch { position: fixed; top: 0; left: 50%; width: 0; height: 0; z-index: 20; }
.notch__card {
  position: absolute; top: 0; left: 0;
  width: var(--w, 185px); height: var(--h, 32px);
  transform: translateX(-50%);
  background: #000; color: #fff;
  border-radius: 0 0 var(--r, 10px) var(--r, 10px);
  overflow: hidden;
  box-shadow: 0 20px 50px -24px rgba(0, 0, 0, .45);
  transition: width .62s var(--spring), height .62s var(--spring), border-radius .62s var(--spring);
}
/* While scroll drives the hero → notch shrink, follow the scroll exactly. */
.notch.is-scrubbing .notch__card { transition: none; }

.notch__hero {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 0 clamp(28px, 4.5vw, 72px) clamp(26px, 4vw, 56px);
  opacity: var(--hero-o, 1);
}
.notch__label {
  margin: 0 0 clamp(14px, 2vw, 26px);
  font: 500 clamp(11px, 1vw, 13px)/1 var(--mono); letter-spacing: .2em; text-transform: uppercase;
  color: rgba(255, 255, 255, .62);
}
.notch__title {
  margin: 0;
  font: 700 clamp(3rem, 9.4vw, 9.6rem)/.96 var(--display);
  letter-spacing: -.03em;
}

.notch__ui {
  position: absolute; top: 0; left: 50%;
  width: var(--iw, 0px); height: var(--ih, 0px);
  transform: translateX(-50%) scale(.965); transform-origin: 50% 0;
  opacity: 0;
  transition: opacity .32s ease, transform .5s var(--spring);
  pointer-events: none; user-select: none;
}
.notch__ui.is-on { opacity: 1; transform: translateX(-50%) scale(1); transition-delay: .06s; }
.notch__hit { position: absolute; top: 0; left: calc(var(--w, 185px) / -2); width: var(--w, 185px); height: calc(var(--h, 32px) + 12px); }

/* ---------- top bar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: max(14px, env(safe-area-inset-top)) var(--gutter) 26px;
  pointer-events: none;
  /* Soft paper backing so content scrolling up never collides with the logo. */
  background: linear-gradient(to bottom, var(--paper) 78%, rgba(239, 239, 236, 0));
  transition: background .3s;
}
.topbar.is-dark { background: linear-gradient(to bottom, var(--ink) 78%, rgba(11, 11, 11, 0)); }
.topbar a { pointer-events: auto; text-decoration: none; }
.wordmark { display: inline-flex; align-items: center; gap: 9px; font: 700 18px/1 var(--display); letter-spacing: -.02em; }
.wordmark img { border-radius: 6px; }
.topbar__nav { display: flex; gap: 26px; margin-left: auto; margin-right: 22px; pointer-events: auto; }
.topbar__nav a { font: 500 14px/1 var(--body); opacity: .75; }
.topbar__nav a:hover { opacity: 1; }
.topbar__cta { font: 600 14px/1 var(--body); padding: 10px 16px; border-radius: 999px; background: var(--ink); color: var(--paper); }

/* ---------- hero ---------- */
.hero { min-height: 160vh; position: relative; }
.hero__below {
  position: sticky; top: 0;
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 0 var(--gutter) clamp(36px, 7vh, 72px);
  opacity: var(--below-o, 1);
}
.hero__lede {
  margin: 0; max-width: 620px;
  font: 500 clamp(1.25rem, 2vw, 1.6rem)/1.3 var(--body); letter-spacing: -.01em;
}
.hero__index { display: flex; flex-wrap: wrap; gap: 8px 28px; margin: 28px 0 32px; padding-top: 18px; border-top: 1px solid var(--rule); }
.hero__index a { font: 500 13px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; }
.hero__index a:hover { text-decoration: underline; text-underline-offset: 4px; }
.hero__cta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }

/* ---------- features ---------- */
/* Each feature is a "slide": its copy stays pinned below the notch while the notch plays the feature. */
.feature {
  min-height: 170vh;
  padding: 0 var(--gutter);
  border-top: 1px solid var(--rule);
}
.feature__inner {
  position: sticky; top: max(260px, 34vh);
  max-width: 760px;
  padding-bottom: 12vh;
}
.feature__title {
  margin: 0;
  font: 700 clamp(2.6rem, 6.4vw, 6.4rem)/1 var(--display); letter-spacing: -.03em;
}
.feature__text { margin: 28px 0 0; max-width: 520px; font-size: 1.15rem; line-height: 1.5; color: #3a3a37; }
.specs { margin: 40px 0 0; max-width: 560px; }
.specs div { display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 14px 0; border-top: 1px solid var(--rule); }
.specs dt { font: 500 12px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mist); }
.specs dd { margin: 0; font-weight: 500; }

/* ---------- price (inverted) ---------- */
.price { background: var(--ink); color: var(--paper); padding: clamp(110px, 18vh, 180px) var(--gutter) clamp(80px, 12vh, 130px); }
.eyebrow--dark { color: rgba(239, 239, 236, .5); }
.price__title { margin: 0; font: 700 clamp(2.8rem, 7vw, 7rem)/1 var(--display); letter-spacing: -.03em; }
.price__row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 64px; padding-top: 28px; border-top: 1px solid rgba(239, 239, 236, .16); }
.price__now { display: block; font: 700 clamp(3.6rem, 6vw, 5.6rem)/1 var(--display); letter-spacing: -.028em; }
.price__was { font: 500 18px/1 var(--mono); color: rgba(239, 239, 236, .45); text-decoration: line-through; margin-right: 12px; }
.price__note { font: 500 13px/1 var(--mono); color: rgba(239, 239, 236, .6); }
.price__list { list-style: none; margin: 0; padding: 0; }
.price__list li { padding: 13px 0; border-bottom: 1px solid rgba(239, 239, 236, .12); }
.price__list li::before { content: "—"; margin-right: 12px; color: var(--green); }
.price__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 48px; }
.price__small { margin: 22px 0 0; font: 500 12px/1.4 var(--mono); color: rgba(239, 239, 236, .5); }

/* ---------- faq + footer ---------- */
.faq { padding: clamp(90px, 14vh, 150px) var(--gutter) 0; max-width: 980px; }
.faq__title { margin: 0 0 32px; font: 700 clamp(2.2rem, 4vw, 3.6rem)/1 var(--display); letter-spacing: -.028em; }
details { border-top: 1px solid var(--rule); padding: 20px 0; }
details:last-of-type { border-bottom: 1px solid var(--rule); }
summary { cursor: pointer; list-style: none; font: 600 1.1rem/1.3 var(--body); display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); color: var(--mist); transition: transform .25s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 12px 0 0; max-width: 640px; color: #4a4a46; }


.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 12px); z-index: 30;
  margin: 0; padding: 12px 18px; border-radius: 999px;
  background: var(--ink); color: var(--paper); font: 500 14px/1.3 var(--body);
  opacity: 0; transition: opacity .3s, transform .3s var(--spring); pointer-events: none;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 760px) {
  .feature__inner { top: max(230px, 30vh); }
  .price__row { grid-template-columns: 1fr; }
  .specs div { grid-template-columns: 110px 1fr; }
  .topbar__cta { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation: none !important; }
  html { scroll-behavior: auto; }
}

.topbar.is-dark { color: var(--paper); }
.topbar.is-dark .topbar__cta { background: var(--paper); color: var(--ink); }
.notch__tab { transform-origin: 0 0; }

/* ---------- additions: secondary button, sections after the notch tour ---------- */
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--rule); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1.5px var(--ink); }
.section-title { margin: 0; font: 700 clamp(2.4rem, 5.4vw, 5.2rem)/1.02 var(--display); letter-spacing: -.03em; }

.grid-section, .gestures { padding: clamp(110px, 16vh, 170px) var(--gutter) 0; border-top: 1px solid var(--rule); }
.cards { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.cards li { padding: 26px 24px 30px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; gap: 10px; min-height: 150px; }
.cards b { font: 700 1.15rem/1.2 var(--display); letter-spacing: -.01em; }
.cards span { color: #4a4a46; font-size: .98rem; line-height: 1.5; }

.gesture-list { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.gesture-list li { background: #fff; border-radius: 20px; padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; box-shadow: 0 1px 0 rgba(11,11,11,.06); }
.gesture-list kbd { align-self: flex-start; font: 500 12px/1 var(--mono); letter-spacing: .06em; padding: 7px 10px; border-radius: 8px; background: var(--ink); color: var(--paper); }
.gesture-list b { font: 700 1.3rem/1.1 var(--display); margin-top: 8px; }
.gesture-list span { color: #4a4a46; font-size: .98rem; }

.privacy { margin: clamp(110px, 16vh, 170px) var(--gutter) 0; padding: clamp(56px, 8vw, 96px) clamp(28px, 6vw, 88px); border-radius: 32px; background: #0b0b0b; color: var(--paper); }
.privacy p { max-width: 620px; margin: 24px 0 0; font-size: 1.15rem; line-height: 1.55; color: rgba(239, 239, 236, .75); }
.ticks { list-style: none; margin: 32px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px 26px; }
.ticks li { font: 500 14px/1.4 var(--body); }
.ticks li::before { content: "✓"; margin-right: 9px; color: var(--green); }
.link { display: inline-block; margin-top: 30px; font: 500 14px/1 var(--body); text-underline-offset: 4px; }
.privacy .link { color: var(--paper); }
.price { margin-top: clamp(110px, 16vh, 170px); }

.final { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 26px; padding: clamp(120px, 18vh, 190px) var(--gutter) 0; }
.final img { filter: drop-shadow(0 18px 30px rgba(0,0,0,.25)); }

.footer { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; padding: clamp(100px, 14vh, 150px) var(--gutter) 40px; margin-top: clamp(100px, 14vh, 150px); border-top: 1px solid var(--rule); }
.footer__brand p { margin: 12px 0 0; color: var(--mist); font-size: .95rem; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__cols div { display: flex; flex-direction: column; gap: 10px; }
.footer__cols b { font: 500 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mist); margin-bottom: 6px; }
.footer__cols a { text-decoration: none; font-size: .95rem; }
.footer__cols a:hover { text-decoration: underline; text-underline-offset: 3px; }
.footer__small { grid-column: 1 / -1; margin: 30px 0 0; font: 500 12px/1.4 var(--mono); color: var(--mist); }

@media (max-width: 760px) {
  .topbar__nav { display: none; }
  .footer { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .privacy { border-radius: 24px; }
}

/* ---------- document pages: privacy, terms, refunds, support ---------- */
.doc { max-width: 760px; margin: 0 auto; padding: 150px var(--gutter) 40px; }
.doc .eyebrow { margin-bottom: 14px; }
.doc h1 { margin: 0; font: 700 clamp(2.6rem, 6vw, 4.4rem)/1.02 var(--display); letter-spacing: -.03em; }
.doc .updated { margin: 18px 0 0; font: 500 12px/1 var(--mono); color: var(--mist); }
.doc h2 { margin: 48px 0 10px; font: 700 1.35rem/1.25 var(--display); letter-spacing: -.01em; }
.doc p, .doc li { color: #33332f; line-height: 1.65; }
.doc ul { padding-left: 1.2em; }
.doc a { text-underline-offset: 3px; }
.doc .lead { font-size: 1.2rem; color: var(--ink); }
.page .topbar { background: linear-gradient(to bottom, var(--paper) 78%, rgba(239, 239, 236, 0)); }

/* SF looks best with the system's own smoothing and optical sizes. */
body { text-rendering: optimizeLegibility; font-feature-settings: "kern"; }

.topbar__nav { transition: opacity .3s; }
.topbar.is-hero .topbar__nav { opacity: 0; pointer-events: none; }