/* Noodle website — v5
   Clean, Apple-style layout led by real product screenshots.
   Type sizes and letter spacing follow apple.com's own scale.
   Follows the visitor's light or dark appearance automatically. */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --ink: #1d1d1f;
  --gray: #6e6e73;
  --blue: #0088ff;
  --blue-hover: #0077e0;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  --text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  --wrap: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-alt: #161617;
    --ink: #f5f5f7;
    --gray: #a1a1a6;
  }
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 52px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.47 var(--text); letter-spacing: -0.022em; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
.wrap { width: min(var(--wrap), 100% - 44px); margin-inline: auto; }
.narrow { max-width: 760px; text-align: center; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 10px; z-index: 99; background: #000; color: #fff; padding: 8px 12px; border-radius: 8px; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

/* Symbols are drawn in near-black; flip them to light in dark mode. */
@media (prefers-color-scheme: dark) {
  .logo img, .wordmark svg, .feat-icon, .dl img, .providers li img { filter: invert(1) brightness(.96); }
}

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.8); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid rgba(0,0,0,.08); }
/* Equal outer columns keep the links centred on the page whatever the logo and button widths. */
.nav-in { height: 48px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; font-size: 12px; line-height: 1.33337; letter-spacing: -0.01em; }
.logo { display: flex; align-items: center; justify-self: start; }
.logo img { width: 22px; height: 22px; }
.nav nav { display: flex; gap: 30px; color: rgba(0,0,0,.72); }
.nav nav a:hover { color: #000; }
.nav-dl { grid-column: 3; justify-self: end; background: var(--blue); color: #fff; border-radius: 999px; padding: 4px 12px; font-weight: 500; }
.nav-dl:hover { background: var(--blue-hover); }
@media (prefers-color-scheme: dark) {
  .nav { background: rgba(22,22,23,.8); border-bottom-color: rgba(255,255,255,.1); }
  .nav nav { color: rgba(255,255,255,.8); }
  .nav nav a:hover { color: #fff; }
}
/* The logo and Download button fade in once the hero buttons scroll away (see app.js). */
.nav .logo, .nav .nav-dl { opacity: 0; transform: translateY(-4px); pointer-events: none; transition: opacity .35s ease, transform .35s ease; }
.nav.show-cta .logo, .nav.show-cta .nav-dl { opacity: 1; transform: none; pointer-events: auto; }

/* ---------- Buttons and links ---------- */
.btn { display: inline-block; background: var(--blue); color: #fff; font-family: var(--text); font-size: 17px; line-height: 1.17648; letter-spacing: -0.022em; padding: 11px 22px; border-radius: 980px; transition: background .2s; }
.btn:hover { background: var(--blue-hover); }
.link { color: var(--blue); font-size: 17px; line-height: 1.17648; letter-spacing: -0.022em; }
.link:hover { text-decoration: underline; }
.ctas { display: flex; gap: 28px; align-items: center; justify-content: center; margin-top: 30px; flex-wrap: wrap; }

/* ---------- Intro ---------- */
.intro { padding-top: 84px; }
.wordmark { margin: 18px auto 0; line-height: 0; }
.wordmark svg { display: block; height: 84px; width: auto; max-width: 100%; margin: 0 auto; }
/* Written on in the films' 2.1 s after a 0.55 s pause. The gap is twice the path and starts
   just past it, so no round cap shows as a dot before its stroke begins. */
@media (prefers-reduced-motion: no-preference) {
  .wordmark path { stroke-dasharray: 1 2; animation: write calc(var(--len) * 2.1s) linear calc(.55s + var(--at) * 2.1s) both; }
  .wordmark path:first-child { animation-timing-function: ease-in; }
  .wordmark path:last-child { animation-timing-function: ease-out; }
}
@keyframes write { from { stroke-dashoffset: 1.01; } to { stroke-dashoffset: 0; } }
.what { margin-top: 34px; font-family: var(--display); font-size: 28px; line-height: 1.14286; font-weight: 400; letter-spacing: .007em; text-wrap: balance; }
.req { margin-top: 16px; font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; color: var(--gray); }
.hero-shot { margin-top: 56px; }

/* ---------- Screenshots ---------- */
.shot-img { width: 100%; height: auto; border-radius: 14px; box-shadow: 0 0 0 1px rgba(0,0,0,.08), 0 30px 70px -20px rgba(0,0,0,.35), 0 12px 24px -12px rgba(0,0,0,.2); }
@media (prefers-color-scheme: dark) {
  .shot-img { box-shadow: 0 0 0 1px rgba(255,255,255,.12), 0 30px 70px -20px rgba(0,0,0,.8); }
}
/* Placeholder frames: replace each with an <img class="shot-img"> when the screenshot is ready. */
.placeholder { aspect-ratio: 16 / 10; border-radius: 14px; display: grid; place-items: center; text-align: center; padding: 24px; background: repeating-linear-gradient(135deg, #f0f0f3 0 14px, #ebebef 14px 28px); box-shadow: inset 0 0 0 1px rgba(0,0,0,.06); color: var(--gray); font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; }
.alt .placeholder { background: repeating-linear-gradient(135deg, #e9e9ed 0 14px, #e4e4e9 14px 28px); }
.placeholder span { max-width: 360px; background: rgba(255,255,255,.85); padding: 10px 16px; border-radius: 10px; }
.placeholder.small { aspect-ratio: 4 / 3; margin-top: 0; }
@media (prefers-color-scheme: dark) {
  .placeholder, .alt .placeholder { background: repeating-linear-gradient(135deg, #1c1c1e 0 14px, #19191b 14px 28px); box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
  .placeholder span { background: rgba(0,0,0,.7); }
}

/* ---------- Three facts and the privacy row ---------- */
.facts { padding: 96px 0 100px; }
.facts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.facts h3, .priv-grid h3 { font-size: 21px; line-height: 1.19048; font-weight: 600; letter-spacing: .011em; }
.facts p, .priv-grid p { margin-top: 8px; font-size: 17px; color: var(--gray); text-wrap: balance; }
.priv-grid p { max-width: 30ch; }

/* ---------- Feature sections ---------- */
.feature { padding-top: 110px; }
.feature > .wrap:last-child { padding-bottom: 110px; }
.feature.alt { background: var(--bg-alt); }
.feature h2, .privacy h2, .download h2 { font-size: 48px; line-height: 1.08349; font-weight: 600; letter-spacing: -0.003em; }
.lead { margin-top: 16px; font-family: var(--display); font-size: 21px; line-height: 1.381; font-weight: 600; letter-spacing: .011em; color: var(--gray); text-wrap: balance; }
.feat-icon { width: 48px; height: 48px; margin: 0 auto 18px; }
.app-name { margin-bottom: 8px; font-family: var(--display); font-size: 17px; line-height: 1.23536; font-weight: 600; letter-spacing: -0.022em; color: var(--gray); }
.meta { margin-top: 16px; font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; color: var(--gray); }
.meta a { color: var(--blue); }
.meta a:hover { text-decoration: underline; }
.shot { margin-top: 56px; }

/* "Bring the AI you already use": text beside a screenshot */
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split h2, .split .lead { text-align: left; }
.providers { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.providers li { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 999px; background: var(--bg-alt); font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; }
.providers li img { width: 16px; height: 16px; object-fit: contain; }
@media (prefers-color-scheme: dark) { .providers li { background: #1d1d1f; } }

/* ---------- Privacy ---------- */
.privacy { background: var(--bg-alt); padding: 110px 0; }
.priv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; margin-top: 56px; }

/* ---------- Download ---------- */
.download { padding: 110px 0 120px; }
.dl-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 52px; }
.dl { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 30px 20px 26px; border-radius: 18px; background: var(--bg-alt); transition: background .2s; }
.dl:hover { background: #ececf0; }
.dl img { width: 44px; height: 44px; }
.dl b { margin-top: 14px; font-family: var(--display); font-size: 17px; line-height: normal; font-weight: 600; letter-spacing: -0.022em; }
.dl span { margin-top: 6px; max-width: 24ch; font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; color: var(--gray); text-wrap: balance; }
.dl em { margin-top: auto; padding-top: 14px; font-style: normal; font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; color: var(--blue); }
@media (prefers-color-scheme: dark) {
  .dl { background: #161617; }
  .dl:hover { background: #1f1f21; }
}
.suite-row { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 40px; }
.suite-row p { font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; color: var(--gray); }

/* ---------- Footer ---------- */
.foot { background: var(--bg-alt); border-top: 1px solid rgba(0,0,0,.06); padding: 22px 0 30px; font-size: 12px; line-height: 1.33337; letter-spacing: -0.01em; color: var(--gray); }
.foot-in { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 20px; flex-wrap: wrap; }
.foot nav a:hover { color: var(--ink); text-decoration: underline; }
@media (prefers-color-scheme: dark) { .foot { border-top-color: rgba(255,255,255,.08); } }

/* ---------- Responsive (breakpoints match apple.com) ---------- */
@media (max-width: 1068px) {
  .feature h2, .privacy h2, .download h2 { font-size: 40px; line-height: 1.1; letter-spacing: 0; }
  .what { font-size: 24px; line-height: 1.16667; letter-spacing: .009em; }
}
@media (max-width: 900px) {
  .nav nav { display: none; }
  .facts-grid, .priv-grid, .dl-grid { grid-template-columns: 1fr 1fr; }
  .split-grid { grid-template-columns: 1fr; }
}
@media (max-width: 734px) {
  .intro { padding-top: 48px; }
  .wordmark svg { height: 60px; }
  .feature h2, .privacy h2, .download h2 { font-size: 32px; line-height: 1.125; letter-spacing: .004em; }
  .what { font-size: 21px; line-height: 1.19048; letter-spacing: .011em; }
  .lead { font-size: 19px; line-height: 1.4211; letter-spacing: .012em; }
  .facts-grid, .priv-grid, .dl-grid { grid-template-columns: 1fr; gap: 28px; }
  .shot-img, .placeholder { border-radius: 10px; }
  .foot-in { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .nav .logo, .nav .nav-dl { transition: none; }
}