/* Echo's rounded interface, with textured editorial artwork and quiet, purposeful motion. */
:root {
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Helvetica, Arial, sans-serif;
  --card: #fffdf7;
  --soft: #f5efde;
  --radius: 24px;
  --shadow: 0 2px 4px #3e351706, 0 16px 40px #3e351708;
  --max: 1440px;
  --gutter: clamp(20px, 4.8vw, 72px);
  --wave-1: #d8c99d;
  --wave-2: #7a8054;
  --wave-3: #e8ba35;
  --wave-4: #aa7a36;
  --wave-5: #9b9871;
  --wave-6: #34382a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --card: #22211b;
    --soft: #29261c;
    --shadow: 0 2px 4px #0002, 0 16px 40px #0002;
    --wave-1: #a59870;
    --wave-2: #656f46;
    --wave-3: #eac23e;
    --wave-4: #ad7d39;
    --wave-5: #99936c;
    --wave-6: #d0c49e;
  }
}
body { overflow-x: visible; }
button { font: inherit; color: inherit; }
button, a, summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button { cursor: pointer; }
[hidden] { display: none !important; }
svg { max-width: 100%; }
.skip { border-radius: 12px; }
:focus-visible { outline: 3px solid #b78c05; outline-offset: 5px; }
.shell > *, .split > *, .hero-intro > * { min-width: 0; }

/* The only page header. Secondary navigation becomes a dismissible popover on mobile. */
.top { height: 76px; gap: 26px; background: color-mix(in srgb, var(--paper) 90%, transparent); }
.top::after { opacity: 0.65; }
.brand { font-size: 21px; letter-spacing: -0.04em; gap: 10px; }
.brand img { width: 30px; height: 30px; box-shadow: 0 1px 2px #17191614; }
.top > nav:not(.mobile-navigation) { gap: 24px; }
.top nav a { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.top nav a::after { height: 2px; border-radius: 2px; background: #cc9d11; }
.get {
  min-height: 44px; padding: 0 19px; gap: 10px; border-radius: 999px;
  border-color: transparent; background: var(--sun); color: #171916;
  box-shadow: 0 2px 6px #96740d12; font-size: 14px;
}
.get:hover { background: #f3c725; color: #171916; transform: translateY(-1px); }
.menu-toggle {
  display: none; flex: none; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 10px; border: 1px solid var(--line); border-radius: 50%; background: var(--card);
}
.menu-toggle svg { width: 22px; height: 22px; fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linecap: round; }
.menu-toggle[aria-expanded="true"] { background: var(--soft); }
.top .mobile-navigation {
  position: fixed; inset: 84px var(--gutter) auto auto; margin: 0; width: min(320px, calc(100vw - 2 * var(--gutter)));
  padding: 10px; border: 1px solid var(--line); border-radius: 22px;
  background: var(--card); color: var(--ink); box-shadow: 0 18px 60px #17191629;
}
.top .mobile-navigation:not(:popover-open) { display: none; }
.top .mobile-navigation:popover-open { display: grid; gap: 2px; animation: menu-in 180ms ease-out; }
.top .mobile-navigation::backdrop { background: #17191618; }
.top .mobile-navigation a { display: flex; justify-content: space-between; min-height: 48px; padding: 12px 16px; border-radius: 12px; }
.top .mobile-navigation a:hover { background: var(--soft); }
.top .mobile-navigation a::after { content: none; }
@keyframes menu-in { from { opacity: 0; transform: translateY(-6px); } }

/* Pill buttons and generous, soft interaction targets follow the Mac app. */
.button {
  min-height: 56px; gap: 30px; padding: 0 24px; border-radius: 999px;
  font-weight: 650; font-size: 16px; box-shadow: 0 3px 6px #1719160a, 0 9px 22px #17191616;
  transition: transform 220ms ease, box-shadow 220ms ease, background 180ms ease, color 180ms ease;
}
.button svg { transition: transform 220ms ease; }
.button:hover { background: var(--ink); color: var(--paper); transform: translateY(-3px); box-shadow: 0 12px 24px #17191626; }
.button:hover svg { transform: translateY(2px); }
.button:active, .get:active { transform: translateY(1px); box-shadow: none; }
.text-link {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px;
  border: 0; background: none; padding: 0 2px; color: var(--ink); font-size: 14px; font-weight: 650;
}
.text-link span { transition: transform 200ms ease; }
.text-link:hover span { transform: translateY(3px); }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.caption { font-family: var(--sans); font-size: 13px; font-weight: 450; letter-spacing: 0; }
.eyebrow, .label, .tag, .num { font-family: var(--sans); font-size: 12px; font-weight: 650; letter-spacing: 0.08em; }
.eyebrow { display: flex; align-items: center; gap: 10px; text-transform: none; letter-spacing: 0.025em; margin-bottom: 22px; }
.live-dot, .caption-dot { display: inline-block; width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 4px color-mix(in srgb, var(--sun) 16%, transparent); }

/* Editorial illustration, Echo typography: both the proposition and download fit above the artwork. */
.hero { padding-top: clamp(48px, 6.3vw, 92px); padding-bottom: 52px; }
.hero-intro { display: grid; grid-template-columns: 1.16fr 0.84fr; align-items: end; gap: 40px; }
.hero h1 { font-size: clamp(56px, 6.7vw, 96px); font-weight: 700; line-height: 1.04; letter-spacing: -0.045em; }
.clean-word { position: relative; display: inline-block; isolation: isolate; }
.clean-word::after {
  content: ""; position: absolute; z-index: -1; left: 0; right: -4px; bottom: 0.04em; height: 0.16em;
  border-radius: 99px; background: var(--sun); transform: rotate(-2deg); transform-origin: left;
  animation: underline-in 900ms 400ms both cubic-bezier(.2,.7,.2,1);
}
@keyframes underline-in { from { transform: rotate(-2deg) scaleX(0); } to { transform: rotate(-2deg) scaleX(1); } }
.hero-foot { display: block; margin: 0 0 3px; }
.deck { font-size: clamp(18px, 1.5vw, 21px); line-height: 1.6; max-width: 26em; letter-spacing: -0.025em; }
.hero .actions { margin: 25px 0 15px; gap: 10px 22px; }
.voice-art { max-width: 1560px; margin: 18px auto 0; }
.voice-landscape { display: block; width: 100%; height: auto; overflow: visible; }
.ribbon { transform-box: fill-box; transform-origin: right center; animation: ribbon-breathe 6.4s ease-in-out infinite; }
.ribbon-1 { fill: var(--wave-1); }
.ribbon-2 { fill: var(--wave-2); animation-delay: -1.1s; animation-duration: 7.2s; }
.ribbon-3 { fill: var(--wave-3); animation-delay: -2.4s; animation-duration: 6.8s; }
.ribbon-4 { fill: var(--wave-4); animation-delay: -3.2s; animation-duration: 7.7s; }
.ribbon-5 { fill: var(--wave-5); animation-delay: -4.1s; }
.ribbon-6 { fill: var(--wave-6); animation-delay: -1.9s; animation-duration: 7s; }
@keyframes ribbon-breathe { 0%, 100% { transform: scaleY(0.93) rotate(-0.2deg); } 50% { transform: scaleY(1.06) rotate(0.2deg); } }
.sun-scene { animation: sun-float 7s ease-in-out infinite; }
@keyframes sun-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-13px); } }
.sun-halo { fill: var(--sun); opacity: 0.07; transform-origin: 947px 87px; animation: sun-breathe 5s ease-in-out infinite; }
.sun-outline { fill: none; stroke: var(--sun); stroke-width: 1; opacity: 0.28; }
@keyframes sun-breathe { 50% { transform: scale(1.17); opacity: 0.02; } }
.signal { fill: none; stroke: #fff2b0; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 0.4 99.6; animation: signal-flow 5.5s linear infinite; opacity: 0.85; }
.signal-2 { animation-delay: -2.9s; animation-duration: 6.8s; stroke: #fffdf6; stroke-width: 2; opacity: 0.65; }
@keyframes signal-flow { to { stroke-dashoffset: -100; } }
.art-caption { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 22px; font-size: 12px; color: var(--muted); }
.art-caption > span { display: inline-flex; align-items: center; gap: 10px; }
.caption-dot { width: 6px; height: 6px; box-shadow: none; }
.motion-toggle {
  display: inline-flex; align-items: center; gap: 7px; min-height: 44px; padding: 0 14px; flex: none;
  border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); font-size: 12px;
}
.motion-toggle:hover { color: var(--ink); background: var(--soft); }
.motion-toggle svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.motion-toggle .play-symbol { display: none; }
.motion-toggle[aria-pressed="true"] .pause-symbol { display: none; }
.motion-toggle[aria-pressed="true"] .play-symbol { display: block; }
.motion-toggle:disabled { cursor: default; opacity: 0.7; }

/* Soft surfaces give the explanatory sections the same character as Echo. */
main > section:not(.hero) { padding-bottom: clamp(72px, 8vw, 116px); }
main > section:not(.hero) > .shell { padding-top: clamp(40px, 5vw, 72px); }
h2 { font-size: clamp(34px, 4vw, 56px); line-height: 1.09; letter-spacing: -0.04em; font-weight: 700; }
.label { margin-bottom: 22px; text-transform: none; font-size: 13px; letter-spacing: 0.01em; gap: 10px; color: var(--muted); }
.label span { display: grid; place-items: center; min-width: 29px; min-height: 29px; border-radius: 50%; background: var(--soft); color: var(--ink); font-size: 11px; }
.lede { font-size: 17px; line-height: 1.75; }
.head { position: relative; }
.head .replay { margin-top: 16px; color: var(--muted); }
.how .head { margin-bottom: 30px; }
.specimen { border: 1px solid var(--line); border-radius: 28px; overflow: hidden; background: var(--card); box-shadow: var(--shadow); margin-bottom: 28px; }
.specimen .row { padding: 32px clamp(22px, 3.4vw, 46px); grid-template-columns: minmax(185px, 220px) minmax(0, 1fr); gap: 24px 40px; }
.specimen .row:last-of-type { border: 0; background: color-mix(in srgb, var(--sun) 9%, var(--card)); }
.said, .typed { font-size: clamp(23px, 2.65vw, 36px); }
.said { line-height: 1.9; }
.said del { color: var(--muted); }
.said del::after { border-radius: 5px; padding: 3px 5px; font-size: 9px; letter-spacing: 0.04em; }
.typed { line-height: 1.5; letter-spacing: -0.035em; font-weight: 650; }
.typed-word { display: inline-block; }
.pill { height: 36px; border-radius: 999px; }
.meter i { animation: meter-dance 900ms ease-in-out infinite alternate; transform-origin: center; }
.meter i:nth-child(2n) { animation-delay: -460ms; animation-duration: 740ms; }
.meter i:nth-child(3n) { animation-delay: -180ms; animation-duration: 1100ms; }
.meter i:nth-child(5n) { animation-delay: -680ms; }
@keyframes meter-dance { from { transform: scaleY(0.38); } to { transform: scaleY(1); } }
.steps { gap: 18px; }
.steps li { border: 1px solid var(--line); background: var(--card); padding: 26px; border-radius: 22px; }
.steps .num { display: grid; place-items: center; width: 34px; height: 34px; background: var(--soft); border-radius: 50%; margin-bottom: 22px; color: var(--ink); }
.steps h3 { font-size: 21px; letter-spacing: -0.035em; }
.steps p:last-child { font-size: 15px; }
kbd { border-radius: 7px; padding: 0.2em 0.48em; }
.rows { border: 0; gap: 16px; }
.rows li { border: 1px solid var(--line); border-radius: 22px; padding: 24px; background: var(--card); grid-template-columns: 32px minmax(0, 1fr); gap: 7px 12px; transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease; }
.rows h3 { font-size: 21px; }
.rows .idx { font-family: var(--sans); font-size: 12px; color: var(--index); }
.rows .stat { grid-column: 2; text-align: left; margin-top: 9px; font-size: 12px; font-family: var(--sans); font-weight: 650; }
.rows .where { letter-spacing: 0; font-family: var(--sans); text-transform: none; font-size: 12px; font-weight: 450; }
.trio { gap: 28px; margin-top: 54px; padding-top: 36px; }
.trio h3 { font-size: 19px; }
.ai-art { position: relative; }
.ai-art img { animation: planet-float 8s ease-in-out infinite; }
@keyframes planet-float { 0%, 100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-12px) rotate(1deg); } }
.langs-art img { animation: tiles-float 9s ease-in-out infinite; }
@keyframes tiles-float { 50% { transform: translateY(-9px) rotate(-0.8deg); } }
.langlist { gap: 8px; font-size: 14px; }
.langlist li { padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); transition: background 180ms ease, transform 180ms ease; }
.langlist li::after { content: none; }
.langlist li:hover { transform: translateY(-2px); background: var(--sun); color: #171916; }
.langlist li:nth-child(5), .langlist li:nth-child(9), .langlist li:nth-child(10), .langlist li:nth-child(23) { animation: language-glow 12s ease-in-out infinite; }
.langlist li:nth-child(9) { animation-delay: -3s; }
.langlist li:nth-child(10) { animation-delay: -6s; }
.langlist li:nth-child(23) { animation-delay: -9s; }
@keyframes language-glow { 0%, 18%, 100% { background: var(--card); color: var(--ink); } 6%, 12% { background: var(--sun); color: #171916; } }
.privacy { --card: #22251f; --soft: #2c3025; }
.vessel picture { display: block; animation: vessel-breathe 7s ease-in-out infinite; }
@keyframes vessel-breathe { 50% { transform: translateY(-6px); filter: brightness(1.07); } }
.vessel figcaption { font-family: var(--sans); font-weight: 400; font-size: 13px; line-height: 1.65; letter-spacing: 0; max-width: 30em; }
.facts { border: 0; gap: 18px; margin-top: 44px; }
.facts li { padding: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 20px; }
.facts h3 { font-size: 18px; letter-spacing: -0.025em; }
.facts p { font-size: 15px; }
.install-steps { border: 0; }
.install-steps li { padding-left: 50px; margin-bottom: 10px; border-color: var(--line); }
.install-steps li::before { top: 23px; display: grid; place-items: center; width: 29px; height: 29px; background: var(--soft); color: var(--ink); border-radius: 50%; }
.needs, .verify { border-radius: 24px; background: var(--card); padding: clamp(24px, 3vw, 38px); box-shadow: var(--shadow); }
.needs .button { width: 100%; }
pre { border-radius: 10px; }
.qa { display: grid; gap: 12px; }
.qa details { border: 1px solid var(--line); border-radius: 18px; padding: 0 23px; background: var(--card); }
.qa details:last-child { border: 1px solid var(--line); }
.qa summary { min-height: 72px; font-size: 17px; font-weight: 600; gap: 16px; }
.qa details[open] { background: var(--soft); }
.qa p { padding: 0 16px 23px 0; font-size: 15px; }
.qa details[open] p { animation: answer-in 250ms ease-out; }
@keyframes answer-in { from { opacity: 0; transform: translateY(-5px); } }

/* A real interaction to close on: the highlighted fn key, not an oversized brand badge. */
.closing { padding: 0 var(--gutter) 80px; }
main > section.closing > .shell {
  max-width: calc(var(--max) - 2 * var(--gutter)); padding: clamp(36px, 5vw, 76px);
  background: var(--soft); border-radius: 36px; border: 1px solid var(--line);
}
.closing .split { grid-template-columns: 1fr 1fr; gap: 32px; overflow: hidden; }
.closing h2 { font-size: clamp(40px, 4.6vw, 65px); letter-spacing: -0.04em; line-height: 1.06; }
.closing .lede { margin: 22px 0 28px; font-size: 17px; max-width: 25em; }
.closing .eyebrow { margin-bottom: 22px; }
.closing .button { background: #171916; color: #fffdf6; border-color: #171916; }
.closing .button:hover { background: #303429; }
.key-scene { position: relative; margin: 0; width: 100%; max-width: 470px; justify-self: center; padding: 58px 25px 0; isolation: isolate; }
.key-aura { position: absolute; z-index: -1; inset: -10% -5%; border-radius: 50%; background: radial-gradient(ellipse, #fed53630, transparent 65%); animation: aura 6s ease-in-out infinite; }
@keyframes aura { 50% { opacity: 0.5; transform: scale(0.9); } }
.keyboard {
  display: grid; grid-template-columns: 1.25fr repeat(3, 1fr); gap: 9px; padding: 13px;
  background: #d9d7ce; border: 1px solid #c8c6bc; border-radius: 22px;
  box-shadow: 0 8px 0 #b7b4a8, 0 9px 0 #a6a292, 0 26px 35px #4c43112b;
  transform: perspective(900px) rotateX(22deg) rotateZ(-11deg); animation: keyboard-float 7s ease-in-out infinite;
}
.key {
  display: flex; align-items: center; justify-content: center; height: clamp(46px, 5.3vw, 76px);
  border-radius: 11px; background: linear-gradient(145deg, #fffef9, #f0eee6); border: 1px solid #dedbd2;
  box-shadow: 0 3px 0 #b8b6ac, 0 4px 3px #6f675e22; color: #595c54;
  font: 500 18px/1 var(--sans);
}
.key-tab, .key-shift { font-size: 12px; }
.key-fn { align-items: flex-start; justify-content: space-between; padding: 15px 12px; background: linear-gradient(145deg, #ffe56b, #f5ca30); border-color: #e4b827; box-shadow: 0 4px 0 #be9417, 0 7px 8px #a17d2333; color: #242719; font-size: 21px; animation: key-press 7s ease-in-out infinite; }
.key-fn svg { align-self: flex-end; width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.3; }
@keyframes key-press { 0%, 15%, 67%, 100% { transform: translateY(0); } 24%, 55% { transform: translateY(3px); box-shadow: 0 1px 0 #be9417, 0 2px 3px #a17d2333; } }
@keyframes keyboard-float { 0%, 100% { transform: perspective(900px) rotateX(22deg) rotateZ(-11deg) translateY(0); } 50% { transform: perspective(900px) rotateX(22deg) rotateZ(-11deg) translateY(-9px); } }
.voice-pill { position: absolute; z-index: 2; top: 3px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 11px; padding: 11px 16px; border-radius: 999px; background: #171916; color: #fffdf6; box-shadow: 0 12px 28px #1719161a; font-size: 12px; white-space: nowrap; animation: voice-hover 7s ease-in-out infinite; }
.voice-dot { width: 7px; height: 7px; background: #fed536; border-radius: 50%; }
@keyframes voice-hover { 50% { transform: translateX(-50%) translateY(-5px); } }
.key-scene figcaption { position: relative; margin-top: 42px; text-align: center; font-size: 13px; color: var(--muted); }
.foot { padding-top: 0; }
.foot > .shell { background: none; }
.foot-top { margin-bottom: 30px; }
.foot-bottom nav { flex-wrap: wrap; gap: 6px 20px; }
.foot-bottom nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; }
.page h1 { font-weight: 720; }
.page .lede, .page li, .page p { overflow-wrap: anywhere; }

/* Loops are opt-in enhancement, paused off screen and when the page is hidden. */
html:not([data-motion="on"]) :is(.ribbon, .sun-scene, .sun-halo, .signal, .meter i, .caret, .rec, .dots i, .ai-art img, .langs-art img, .langlist li, .vessel picture, .keyboard, .key-fn, .key-aura, .voice-pill) { animation-play-state: paused !important; }
html:not([data-motion="on"]) :is(.mobile-navigation, .qa p), html:not([data-motion="on"]) .clean-word::after { animation: none !important; }
.replay:disabled { opacity: 0.55; cursor: default; text-decoration: none; }
.motion-scene:not(.in-view) *, .specimen:not(.in-view) *, .langlist:not(.in-view) * { animation-play-state: paused; }
@media (hover: hover) and (pointer: fine) {
  .rows li:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--line-strong); }
}
@media (min-width: 1101px) { .rows { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 901px) { .top nav .wide-only { display: inline-flex !important; } }
@media (max-width: 1100px) {
  .hero-intro { grid-template-columns: 1.05fr 0.95fr; gap: 24px; }
  .hero h1 { font-size: clamp(56px, 7.1vw, 80px); }
  .hero .actions { gap: 8px 16px; }
  .hero .button { font-size: 15px; gap: 18px; padding: 0 21px; }
  .deck { font-size: 18px; }
  .split { gap: 40px; }
  .rows { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .specimen .row { grid-template-columns: 185px minmax(0, 1fr); gap: 26px; }
}
@media (max-width: 900px) {
  .top { gap: 10px; }
  .top > nav:not(.mobile-navigation) { display: none; }
  .menu-toggle { display: flex; }
  .get { margin-left: auto; }
  .hero { padding-top: 42px; }
  .hero-intro { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: clamp(56px, 10.5vw, 88px); }
  .hero h1 br { display: none; }
  .hero h1 { max-width: 9em; }
  .deck { max-width: 34em; }
  .hero .actions { margin-top: 22px; }
  .voice-art { margin-top: 12px; }
  .voice-landscape { min-height: 240px; }
  .split, .ai-top { grid-template-columns: 1fr; }
  .specimen .row { grid-template-columns: 1fr; gap: 20px; }
  .side { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
  .ai-art, .langs-art { max-width: 580px; justify-self: center; width: 100%; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .vessel { justify-self: center; }
  .closing .split { grid-template-columns: 1fr; gap: 44px; }
  .closing h2 { max-width: 9em; }
  .key-scene { max-width: 400px; padding-top: 62px; }
  .key { height: 64px; }
}
@media (max-width: 600px) {
  :root { --gutter: 20px; }
  html { scroll-padding-top: 84px; }
  .top { height: 68px; gap: 8px; }
  .brand { font-size: 20px; gap: 8px; }
  .brand img { width: 28px; height: 28px; }
  .get { min-height: 44px; padding: 0 14px; gap: 8px; font-size: 13px; }
  .top .mobile-navigation { top: 76px; }
  .hero { padding-top: 36px; padding-bottom: 36px; }
  .eyebrow { font-size: 11px; gap: 9px; margin-bottom: 18px; }
  .hero h1 { font-size: clamp(46px, 11.5vw, 68px); line-height: 1.06; }
  .hero h1 br { display: block; }
  .hero-intro { gap: 24px; }
  .deck { font-size: 18px; line-height: 1.6; }
  .hero .actions { display: grid; grid-template-columns: 1fr; gap: 6px; margin: 24px 0 10px; }
  .button { justify-content: center; gap: 18px; min-height: 54px; width: 100%; }
  .hero .button { font-size: 16px; }
  .hero .caption { text-align: center; font-size: 12px; }
  .voice-art { margin-top: 22px; overflow: clip; }
  .voice-landscape { width: 142%; max-width: none; margin-left: -16%; min-height: 0; }
  .art-caption { flex-wrap: wrap; padding-top: 20px; gap: 8px; }
  .art-caption > span { font-size: 11px; gap: 7px; }
  .motion-toggle { font-size: 11px; padding: 0 10px; margin-left: auto; }
  .art-caption .caption-dot { display: none; }
  h2 { font-size: clamp(32px, 8.5vw, 43px); line-height: 1.1; }
  main > section:not(.hero) { padding-bottom: 64px; }
  main > section:not(.hero) > .shell { padding-top: 40px; }
  .label { margin-bottom: 18px; }
  .specimen { border-radius: 22px; margin-bottom: 20px; }
  .specimen .row { padding: 24px 20px 28px; }
  .said { font-size: 23px; line-height: 2; }
  .typed { font-size: 25px; line-height: 1.45; }
  .side { gap: 12px; }
  .side .tag { width: 100%; }
  .steps, .rows, .facts { grid-template-columns: 1fr; }
  .steps { gap: 12px; }
  .steps li { padding: 24px; }
  .steps .num { margin-bottom: 16px; }
  .ai-top { margin-bottom: 28px; gap: 16px; }
  .rows li { grid-template-columns: 28px minmax(0, 1fr); padding: 22px; }
  .trio { margin-top: 36px; padding-top: 30px; gap: 30px; }
  .langs-art { margin-top: -12px; }
  .langlist { gap: 7px; }
  .langlist li { font-size: 13px; padding: 6px 11px; }
  .facts { gap: 12px; margin-top: 32px; }
  .facts li { padding: 23px; }
  .needs { padding: 24px; }
  .qa details { padding: 0 20px; }
  .qa summary { font-size: 16px; min-height: 74px; }
  .closing { padding-left: 12px; padding-right: 12px; }
  main > section.closing > .shell { padding: 30px 22px; border-radius: 28px; }
  .closing h2 { font-size: clamp(36px, 9.2vw, 49px); }
  .closing .caption { text-align: center; font-size: 12px; }
  .closing .lede { font-size: 16px; }
  .key-scene { padding: 53px 12px 0; }
  .keyboard { padding: 10px; gap: 7px; border-radius: 18px; }
  .key { height: clamp(43px, 14vw, 64px); border-radius: 8px; font-size: 15px; }
  .key-tab, .key-shift { font-size: 10px; }
  .key-fn { font-size: 17px; padding: 10px 8px; }
  .key-fn svg { width: 15px; height: 15px; }
  .key-scene figcaption { margin-top: 32px; font-size: 12px; }
  .voice-pill { padding: 10px 14px; gap: 8px; }
  .foot-top { margin-bottom: 20px; gap: 10px 18px; }
  .foot-top p { width: 100%; font-size: 14px; }
  .totop { margin-left: 0; }
  .foot-bottom { gap: 12px; }
  .page h1 { font-size: 48px; }
}
@media (max-width: 360px) {
  :root { --gutter: 16px; }
  .hero h1 { font-size: 45px; }
  .get svg { display: none; }
  .art-caption { justify-content: center; }
  .motion-toggle { margin: 0; }
  .pill { padding: 0 11px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .clean-word::after { transform: rotate(-2deg); }
}