/* olcOS — site styles. Tokens follow App/UI/Theme.swift (dark appearance). */

@font-face {
  font-family: "Onest";
  src: url("../fonts/onest-cyr.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Onest";
  src: url("../fonts/onest-lat.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jbmono-cyr.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jbmono-lat.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #0b0c0f;
  --bg-deep: #07080a;
  --card: #141519;
  --card-2: #1b1c21;
  --card-3: #222329;
  --hair: rgba(255, 255, 255, 0.09);
  --hair-2: rgba(255, 255, 255, 0.16);
  --text: #f3f4f7;
  --text-2: rgba(235, 236, 245, 0.68);
  --text-3: rgba(235, 236, 245, 0.46);
  --tint: #6e9bff;
  --fill-a: #3a57d9;
  --fill-b: #5f55dc;
  --green: #30d158;
  --amber: #ffd60a;
  --orange: #ff9f0a;
  --cyan: #36d8f5;
  --mid: #5eaeff;
  --violet: #8b7bff;
  --font: "Onest", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --section: clamp(96px, 11vw, 168px);
  --r-card: 22px;
  --r-btn: 14px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --nav-h: 68px;
  color-scheme: dark;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, ol, ul, figure, dl, dd { margin: 0; }
ol, ul { padding: 0; list-style: none; }
code, pre, kbd { font-family: var(--mono); }

:focus-visible { outline: 2px solid var(--tint); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  padding: 10px 16px; border-radius: 10px; background: var(--card-2); color: var(--text);
}
.skip:focus { top: 12px; }

.nw { white-space: nowrap; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- type ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tint);
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(48, 209, 88, 0.16);
}

.h2 {
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1.08;
  font-weight: 660;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.h2 em, .h1 em { font-style: normal; color: var(--tint); }

.lead {
  font-size: clamp(18px, 1.55vw, 21px);
  line-height: 1.55;
  color: var(--text-2);
  text-wrap: pretty;
}

.sec-head { max-width: 760px; }
.sec-head .eyebrow { margin-bottom: 20px; }
.sec-head .lead { margin-top: 22px; max-width: 640px; }

.section { padding: var(--section) 0; position: relative; }

/* the app's signal signature as a section divider */
.rule {
  height: 1px;
  max-width: var(--wrap);
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, rgba(54, 216, 245, 0.55) 22%, rgba(94, 174, 255, 0.55) 50%, rgba(139, 123, 255, 0.55) 78%, transparent);
}

/* ---------- buttons ---------- */

.btn {
  --h: 58px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: var(--h);
  padding: 9px 22px 9px 18px;
  border-radius: var(--r-btn);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease), filter 0.25s var(--ease);
}
.btn svg { flex: none; width: 22px; height: 22px; }
.btn .t { display: flex; flex-direction: column; align-items: flex-start; }
.btn small {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  opacity: 0.78;
  margin-top: 3px;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--fill-a), var(--fill-b));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 12px 32px -14px rgba(95, 85, 220, 0.75);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.08); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 18px 40px -14px rgba(95, 85, 220, 0.9); }
.btn-secondary {
  color: var(--text);
  background: var(--card-2);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.btn-secondary:hover { transform: translateY(-2px); background: var(--card-3); box-shadow: inset 0 0 0 1px var(--hair-2); }
.btn-sm { --h: 40px; padding: 0 16px; font-size: 14.5px; border-radius: 11px; }
.btn:active { transform: translateY(0) scale(0.985); }

.link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--tint);
  font-weight: 560;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.35s var(--ease);
  padding-bottom: 2px;
}
.link:hover { background-size: 100% 1px; }
.link svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease); }
.link:hover svg { transform: translateX(3px); }

/* ---------- nav ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--nav-h);
  transition: background-color 0.3s var(--ease), box-shadow 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(11, 12, 15, 0.72);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  backdrop-filter: saturate(160%) blur(18px);
  box-shadow: 0 1px 0 var(--hair);
}
.nav .wrap { height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; font-size: 20px; letter-spacing: -0.02em; }
.brand img { width: 32px; height: 32px; border-radius: 8px; box-shadow: 0 0 0 1px var(--hair); }
.nav-links { display: flex; gap: 26px; margin-left: 18px; font-size: 15px; color: var(--text-2); }
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-end { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav-icon {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 11px; color: var(--text-2);
  transition: color 0.2s, background-color 0.2s;
}
.nav-icon:hover { color: var(--text); background: var(--card-2); }
.nav-icon svg { width: 20px; height: 20px; }
.lang {
  display: inline-grid; place-items: center;
  height: 40px; padding: 0 12px; border-radius: 11px;
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.06em; color: var(--text-2);
  transition: color 0.2s, background-color 0.2s;
}
.lang:hover { color: var(--text); background: var(--card-2); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: calc(var(--nav-h) + clamp(28px, 6vh, 80px)) 0 clamp(72px, 8vw, 120px);
  overflow: clip;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.h1 {
  margin-top: 26px;
  font-size: clamp(40px, min(4.7vw, 8.6vh), 68px);
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: -0.045em;
  padding-bottom: 0.06em;
}
.h1 .line { display: block; }
.hero .lead { margin-top: 26px; max-width: 560px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.hero-more { margin-top: 22px; }
.facts {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  margin-top: 40px; padding-top: 26px;
  border-top: 1px solid var(--hair);
  font-size: 14.5px; color: var(--text-3);
}
.facts li { display: inline-flex; align-items: center; gap: 9px; }
.facts svg { width: 16px; height: 16px; color: var(--green); flex: none; }

.device {
  position: relative;
  justify-self: center;
  --pw: clamp(236px, min(25vw, calc((100vh - 190px) / 2.25)), 330px);
}
.device .glow {
  position: absolute;
  left: 50%; top: 46%;
  width: 190%; aspect-ratio: 1;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(closest-side at 38% 42%, rgba(54, 216, 245, 0.16), transparent 72%),
    radial-gradient(closest-side at 62% 58%, rgba(139, 123, 255, 0.2), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.phone {
  position: relative;
  z-index: 1;
  width: var(--pw);
  padding: calc(var(--pw) * 0.034);
  border-radius: calc(var(--pw) * 0.17);
  background: linear-gradient(150deg, #34363e 0%, #17181c 38%, #0d0e11 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 0 0 calc(var(--pw) * 0.012) #050506,
    0 50px 90px -40px rgba(0, 0, 0, 0.95),
    0 0 0 1px rgba(0, 0, 0, 0.7);
}
.screen {
  position: relative;
  overflow: hidden;
  aspect-ratio: 660 / 1435;
  border-radius: calc(var(--pw) * 0.138);
  background: var(--bg);
  isolation: isolate;
}
.screen img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.screen .shot { opacity: 0; transition: opacity 0.7s var(--ease); }
.screen .shot.is-active { opacity: 1; }
.island {
  position: absolute; z-index: 3;
  top: 2.2%; left: 50%;
  width: 30%; height: 3.9%;
  transform: translateX(-50%);
  border-radius: 99px;
  background: #000;
}
.sbar {
  position: absolute; z-index: 2;
  top: 2.6%; left: 9.5%; right: 8%;
  display: flex; justify-content: space-between; align-items: center;
  font-size: calc(var(--pw) * 0.046);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #fff;
  pointer-events: none;
}
.sbar svg { height: calc(var(--pw) * 0.04); width: auto; }

.la {
  position: absolute; z-index: 2;
  left: -24%; bottom: 13%;
  width: 104%;
  border-radius: calc(var(--pw) * 0.058);
  overflow: hidden;
  box-shadow: 0 30px 60px -18px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(255, 255, 255, 0.08);
  opacity: 0;
  transform: translate3d(0, 22px, 0) scale(0.97);
  transition: opacity 0.6s var(--ease), transform 0.8s var(--ease);
}
.device.is-on .la { opacity: 1; transform: none; transition-delay: 0.45s; }
.tap {
  position: absolute; z-index: 4;
  left: 9%; right: 9%;
  top: 41.5%; height: 5.2%;
  border-radius: 12px;
}
.tap:focus-visible { outline-offset: 2px; }
.device-note {
  position: relative; z-index: 2;
  margin-top: 22px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-3);
}
.device-note b { font-weight: 500; color: var(--text-2); }
.device-note .st-on { display: none; color: var(--green); }
.device.is-on .device-note .st-on { display: inline; }
.device.is-on .device-note .st-off { display: none; }

/* ---------- marquee ---------- */

.marquee {
  position: relative;
  border-block: 1px solid var(--hair);
  background: var(--bg-deep);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 46s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee ul {
  display: flex; align-items: center; flex: none;
  padding: 26px 0;
}
.marquee li {
  display: inline-flex; align-items: center; gap: 30px;
  padding-right: 30px;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 560;
  letter-spacing: -0.02em;
  color: var(--text-2);
  white-space: nowrap;
}
.marquee li::after {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  opacity: 0.8;
}
@keyframes marquee { to { transform: translate3d(-50%, 0, 0); } }

/* ---------- how it works (pinned scene) ---------- */

.how { position: relative; background: var(--bg); }
.how-track { position: relative; height: 340vh; }
.how-sticky {
  position: sticky; top: 0;
  height: 100vh; height: 100svh;
  overflow: hidden;
}
.how-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  /* the traffic line fades in from behind the copy column instead of running under it */
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.35) 50%, #000 62%);
  mask-image: linear-gradient(90deg, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.35) 50%, #000 62%);
}
.how-sticky::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(11, 12, 15, 0) 14%, rgba(11, 12, 15, 0) 86%, var(--bg) 100%);
  pointer-events: none;
}
.how-copy {
  position: relative; z-index: 2;
  height: 100%;
  display: flex; flex-direction: column; justify-content: center;
}
.how-copy .eyebrow { margin-bottom: 22px; }
.how-copy .h2 { max-width: 560px; }
.how-steps { position: relative; margin-top: 34px; max-width: 440px; min-height: 190px; }
.how-step { transition: opacity 0.5s var(--ease), transform 0.6s var(--ease); }
.how-step + .how-step { margin-top: 26px; }
.how-step .num {
  font-family: var(--mono); font-size: 13px; color: var(--tint); letter-spacing: 0.08em;
}
.how-step h3 { margin-top: 8px; font-size: clamp(22px, 2vw, 27px); line-height: 1.25; font-weight: 620; letter-spacing: -0.02em; }
.how-step p { margin-top: 10px; color: var(--text-2); font-size: 17px; }
.how-progress {
  display: flex; gap: 8px; margin-top: 36px;
}
.how-progress span {
  position: relative;
  width: 64px; height: 3px; border-radius: 3px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}
.how-progress span i {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* JS + motion: chapters stack and crossfade */
.js .how-steps .how-step { position: absolute; inset: 0 0 auto 0; margin: 0; opacity: 0; transform: translateY(14px); pointer-events: none; }
.js .how-steps .how-step.is-active { opacity: 1; transform: none; pointer-events: auto; }

/* ---------- features (sticky phone) ---------- */

.feat {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 96px);
  margin-top: clamp(40px, 6vw, 80px);
}
.feat-stage { position: relative; }
.feat-sticky {
  position: sticky;
  top: calc(50vh - var(--ph) / 2 + var(--nav-h) / 3);
  display: grid; justify-items: center;
  --pw: clamp(250px, 22vw, 300px);
  --ph: calc(var(--pw) * 2.32);
}
.feat-sticky .glow {
  position: absolute; left: 50%; top: 50%;
  width: 170%; aspect-ratio: 1; transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(79, 91, 213, 0.22), transparent 70%);
  pointer-events: none;
}
.feat-count {
  margin-top: 22px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.1em; color: var(--text-3);
}
.feat-count b { color: var(--text); font-weight: 500; }
.feat-item {
  min-height: 74vh;
  display: flex; flex-direction: column; justify-content: center;
  opacity: 0.3;
  transition: opacity 0.45s var(--ease);
}
.feat-item.is-active { opacity: 1; }
.feat-item .num { font-family: var(--mono); font-size: 13px; letter-spacing: 0.08em; color: var(--tint); }
.feat-item h3 { margin-top: 12px; font-size: clamp(26px, 2.6vw, 36px); line-height: 1.15; font-weight: 640; letter-spacing: -0.03em; text-wrap: balance; }
.feat-item p { margin-top: 16px; font-size: 18px; color: var(--text-2); max-width: 460px; text-wrap: pretty; }
.feat-item .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 12px; border-radius: 99px;
  background: var(--card-2); box-shadow: inset 0 0 0 1px var(--hair);
  font-size: 13.5px; color: var(--text-2);
}
.tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.feat-shot-m { display: none; }

/* ---------- server ---------- */

.server {
  background: var(--bg-deep);
  border-block: 1px solid var(--hair);
  overflow: clip;
}
.server-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.term {
  margin-top: 40px;
  border-radius: 18px;
  background: #0f1014;
  box-shadow: inset 0 0 0 1px var(--hair), 0 30px 70px -40px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 14px 12px 16px;
  border-bottom: 1px solid var(--hair);
  font-family: var(--mono); font-size: 12px; color: var(--text-3);
}
.term-bar .d { width: 11px; height: 11px; border-radius: 50%; background: #2a2b31; }
.term-bar .title { margin-left: 10px; }
.copy {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 7px;
  height: 32px; padding: 0 12px; border-radius: 9px;
  font-family: var(--font); font-size: 13.5px; font-weight: 560; color: var(--text);
  background: var(--card-2); box-shadow: inset 0 0 0 1px var(--hair);
  transition: background-color 0.2s, box-shadow 0.2s, color 0.2s;
}
.copy:hover { background: var(--card-3); box-shadow: inset 0 0 0 1px var(--hair-2); }
.copy svg { width: 15px; height: 15px; }
.copy.is-done { color: var(--green); }
.term pre {
  margin: 0;
  padding: 22px 22px 24px;
  font-size: clamp(12.5px, 1.02vw, 14.5px);
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: anywhere;
}
.term .p { color: var(--green); user-select: none; }
.term .caret {
  display: inline-block; width: 0.6em; height: 1.15em; margin-left: 2px;
  vertical-align: -0.2em; background: var(--text);
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.steps3 {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px; margin-top: 18px;
}
.step {
  padding: 22px 22px 24px;
  border-radius: 18px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.step .num { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.08em; color: var(--tint); }
.step h3 { margin-top: 10px; font-size: 18px; line-height: 1.3; font-weight: 620; letter-spacing: -0.015em; }
.step p { margin-top: 8px; font-size: 15px; line-height: 1.55; color: var(--text-2); }
.server-device { justify-self: center; position: relative; --pw: clamp(240px, 21vw, 290px); }
.server-device .glow {
  position: absolute; left: 50%; top: 50%; width: 180%; aspect-ratio: 1; transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(54, 216, 245, 0.12), transparent 70%);
  pointer-events: none;
}
.server-device figcaption {
  margin-top: 20px; text-align: center; font-size: 14.5px; color: var(--text-3); max-width: 280px; margin-inline: auto;
}

/* ---------- download ---------- */

.plat {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(40px, 5vw, 64px);
}
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 30px 28px 28px;
  border-radius: var(--r-card);
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background-color 0.35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: inset 0 0 0 1px var(--hair-2), 0 30px 60px -36px rgba(0, 0, 0, 0.9); }
.card .ico {
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--card-3); box-shadow: inset 0 0 0 1px var(--hair);
  color: var(--text);
}
.card .ico svg { width: 24px; height: 24px; }
.card h3 { margin-top: 22px; font-size: 24px; line-height: 1.2; font-weight: 650; letter-spacing: -0.025em; }
.card .req { margin-top: 6px; flex: none; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; color: var(--tint); }
.card p { margin-top: 16px; font-size: 15.5px; line-height: 1.6; color: var(--text-2); flex: 1; }
.card .acts { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin-top: 26px; }
.card .btn { --h: 48px; padding: 0 18px; font-size: 15px; }
.plat-note { margin-top: 22px; font-size: 14.5px; color: var(--text-3); }
.plat-note a { color: var(--text-2); text-decoration: underline; text-decoration-color: var(--hair-2); text-underline-offset: 3px; }
.plat-note a:hover { color: var(--text); }

/* ---------- speed & limits ---------- */

.speed-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px clamp(24px, 3vw, 40px);
  margin-top: clamp(40px, 5vw, 64px);
  align-items: start;
}
.stats { display: grid; gap: 12px; }
.stat {
  display: grid;
  grid-template-columns: minmax(150px, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 6px 20px;
  padding: 24px 24px 24px 26px;
  border-radius: 18px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.stat b {
  grid-row: span 2;
  font-family: var(--mono);
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
  white-space: nowrap;
}
.stat b small { font-size: 0.4em; letter-spacing: 0; color: var(--text-3); margin-left: 6px; font-weight: 400; }
.stat span { display: block; font-size: 15px; color: var(--text-2); }
.stat .bar { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.stat .bar i { display: block; height: 100%; width: var(--w); border-radius: 4px; background: linear-gradient(90deg, var(--cyan), var(--violet)); transform-origin: 0 50%; }
.js .stat[data-reveal] .bar i { transform: scaleX(0); transition: transform 1.2s var(--ease) 0.25s; }
.js .stat[data-reveal].is-in .bar i { transform: none; }
.src-note { margin-top: 16px; font-size: 13.5px; color: var(--text-3); }
.src-note a { color: var(--text-2); text-decoration: underline; text-decoration-color: var(--hair-2); text-underline-offset: 3px; }
.limits { display: grid; gap: 12px; }
.limit {
  display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 16px;
  padding: 22px 22px 22px 20px;
  border-radius: 18px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.limit .ico {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: rgba(255, 159, 10, 0.12); color: var(--orange);
}
.limit .ico svg { width: 20px; height: 20px; }
.limit h3 { font-size: 17.5px; line-height: 1.35; font-weight: 620; letter-spacing: -0.01em; }
.limit p { margin-top: 6px; font-size: 15px; line-height: 1.55; color: var(--text-2); }

/* ---------- faq ---------- */

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.faq-head { position: sticky; top: calc(var(--nav-h) + 40px); }
.faq-list { border-top: 1px solid var(--hair); }
.qa { border-bottom: 1px solid var(--hair); }
.qa summary {
  list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 24px 2px;
  cursor: pointer;
  font-size: clamp(18px, 1.6vw, 21px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.35;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary .pm {
  position: relative; flex: none;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--card-2); box-shadow: inset 0 0 0 1px var(--hair);
  transition: background-color 0.25s, transform 0.4s var(--ease);
}
.qa summary .pm::before, .qa summary .pm::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 12px; height: 1.6px; border-radius: 2px; background: var(--text-2);
  transform: translate(-50%, -50%);
  transition: transform 0.4s var(--ease);
}
.qa summary .pm::after { transform: translate(-50%, -50%) rotate(90deg); }
.qa[open] summary .pm { transform: rotate(180deg); background: var(--card-3); }
.qa[open] summary .pm::after { transform: translate(-50%, -50%) rotate(0deg); }
.qa summary:hover .pm { background: var(--card-3); }
.qa .ans { overflow: hidden; }
.qa .ans p { padding: 0 56px 26px 2px; color: var(--text-2); font-size: 16.5px; line-height: 1.65; }

/* ---------- closing ---------- */

.closing { position: relative; text-align: center; overflow: clip; }
.closing::before {
  content: ""; position: absolute; left: 50%; top: 32%;
  width: min(1100px, 140vw); aspect-ratio: 1.6; transform: translate(-50%, -50%);
  background:
    radial-gradient(closest-side at 40% 50%, rgba(54, 216, 245, 0.13), transparent 70%),
    radial-gradient(closest-side at 60% 50%, rgba(139, 123, 255, 0.16), transparent 70%);
  pointer-events: none;
}
.closing .wrap { position: relative; }
.closing .app-icon {
  width: clamp(120px, 13vw, 168px); height: auto; margin: 0 auto;
  border-radius: 23%;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 40px 90px -30px rgba(31, 95, 255, 0.55);
}
.closing .h2 { margin: 40px auto 0; max-width: 900px; font-size: clamp(36px, 5.4vw, 74px); }
.closing .h2 .line { display: block; }
.closing .lead { margin: 22px auto 0; max-width: 600px; }
.closing .cta { justify-content: center; margin-top: 40px; }
.closing .small { margin-top: 22px; font-size: 14.5px; color: var(--text-3); }

/* ---------- footer ---------- */

.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--hair);
  padding: 64px 0 40px;
  font-size: 15px;
}
.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
}
.foot-grid .brand { font-size: 19px; }
.foot-about { margin-top: 16px; color: var(--text-3); max-width: 320px; line-height: 1.6; }
.foot-col h2 { font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }
.foot-col ul { margin-top: 16px; display: grid; gap: 10px; }
.foot-col a { color: var(--text-2); transition: color 0.2s; }
.foot-col a:hover { color: var(--text); }
.foot-col a[aria-current] { color: var(--text); }
.foot-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px;
  margin-top: 56px; padding-top: 24px;
  border-top: 1px solid var(--hair);
  font-size: 13.5px; color: var(--text-3);
}
.foot-bottom a { color: var(--text-2); text-decoration: underline; text-decoration-color: var(--hair-2); text-underline-offset: 3px; }

/* ---------- reveal ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
  transition: opacity 0.8s var(--ease), transform 0.9s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .nav-links { display: none; }
  .steps3 { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  :root { --nav-h: 62px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: left; }
  .h1 { font-size: clamp(32px, 9.2vw, 54px); }
  .device { --pw: min(68vw, 290px); margin-top: 24px; }
  .la { left: -14%; width: 100%; }

  .how-track { height: 260vh; }
  .how-canvas {
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 50%, rgba(0, 0, 0, 0.25) 60%, transparent 68%);
    mask-image: linear-gradient(180deg, #000 0%, #000 50%, rgba(0, 0, 0, 0.25) 60%, transparent 68%);
  }
  .how-copy { justify-content: flex-end; padding-bottom: 9vh; }
  .how-copy .eyebrow { margin-bottom: 14px; }
  .how-copy .h2 { font-size: clamp(28px, 7.4vw, 40px); }
  .how-steps { margin-top: 20px; min-height: 168px; }
  .how-step p { font-size: 16px; }

  .feat { grid-template-columns: 1fr; margin-top: 36px; }
  .feat-stage { display: none; }
  .feat-list {
    display: flex; gap: 14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    margin: 0 calc(var(--gutter) * -1);
    padding: 4px var(--gutter) 18px;
    scrollbar-width: none;
  }
  .feat-list::-webkit-scrollbar { display: none; }
  .feat-item {
    flex: 0 0 min(84%, 360px);
    min-height: 0;
    opacity: 1;
    scroll-snap-align: center;
    justify-content: flex-start;
    padding: 26px 22px 24px;
    border-radius: var(--r-card);
    background: var(--card);
    box-shadow: inset 0 0 0 1px var(--hair);
  }
  .feat-item h3 { font-size: 23px; }
  .feat-item p { font-size: 16px; }
  .feat-shot-m {
    display: block;
    order: -1;
    margin: 0 auto 24px;
    --pw: 172px;
  }
  .swipe-hint { display: flex !important; }

  .server-grid { grid-template-columns: 1fr; }
  .server-device { margin-top: 12px; }

  .plat { grid-template-columns: 1fr; }
  .speed-grid { grid-template-columns: 1fr; }
  .src-note { margin-bottom: 8px; }
  .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-head { position: static; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .nav .btn-sm { padding: 0 13px; }
  .nav-icon { display: none; }
  .cta .btn { width: 100%; }
  .stat { grid-template-columns: minmax(118px, auto) minmax(0, 1fr); padding: 20px; gap: 6px 16px; }
  .stat b { font-size: 26px; }
  .qa .ans p { padding-right: 12px; }
  .card { padding: 26px 22px 24px; }
  .term pre { padding: 18px 18px 20px; }
}

.swipe-hint {
  display: none;
  align-items: center; gap: 8px;
  margin-top: 6px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--text-3);
}
.swipe-hint svg { width: 16px; height: 16px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .how-track { height: auto; }
  .how-sticky { position: relative; height: auto; min-height: 100vh; }
  .js .how-steps .how-step { position: static; opacity: 1; transform: none; pointer-events: auto; }
  .js .how-steps .how-step + .how-step { margin-top: 26px; }
  .how-progress { display: none; }
  .term .caret { animation: none; }
  .screen .shot, .la, .card, .btn { transition: none; }
}

/* ---------- whitelists ---------- */

.wl { --red: #ff6961; padding-bottom: clamp(80px, 9vw, 140px); }
.wl-diagram {
  display: grid;
  gap: 14px;
  margin-top: clamp(40px, 5vw, 64px);
}
.wl-row {
  margin: 0;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  grid-template-areas: "label path" ". cap";
  gap: 20px 28px;
  align-items: center;
  padding: 28px 30px 26px;
  border-radius: var(--r-card);
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.wl-label {
  grid-area: label;
  display: flex; align-items: center; gap: 12px;
  font-size: 19px; font-weight: 640; letter-spacing: -0.02em; line-height: 1.25;
}
.wl-badge { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; }
.wl-badge svg { width: 16px; height: 16px; }
.is-bad .wl-badge { background: rgba(255, 105, 97, 0.14); color: var(--red); }
.is-good .wl-badge { background: rgba(48, 209, 88, 0.14); color: var(--green); }
.wl-path {
  grid-area: path;
  display: grid;
  grid-template-columns: 112px repeat(4, minmax(24px, 1fr) 112px);
  align-items: start;
}
.wl-node { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; min-width: 0; }
.wl-ico {
  flex: none;
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--card-3);
  box-shadow: inset 0 0 0 1px var(--hair);
  color: var(--text);
}
.wl-ico svg { width: 22px; height: 22px; }
.wl-name { font-size: 13.5px; line-height: 1.3; color: var(--text-2); text-wrap: balance; }
.wl-name small { display: block; margin-top: 4px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.02em; }
.wl-node.is-dead .wl-ico { color: var(--red); background: rgba(255, 105, 97, 0.08); box-shadow: inset 0 0 0 1px rgba(255, 105, 97, 0.38); }
.wl-node.is-dead .wl-name small { color: var(--red); }
.wl-node.is-allowed .wl-ico { color: var(--green); background: rgba(48, 209, 88, 0.08); box-shadow: inset 0 0 0 1px rgba(48, 209, 88, 0.42); }
.wl-node.is-allowed .wl-name small { color: var(--green); }
.wl-link {
  position: relative;
  height: 2px; margin-top: 23px;
  border-radius: 2px;
  background: var(--hair-2);
}
.wl-link.is-pass {
  overflow: hidden;
  background: linear-gradient(90deg, rgba(54, 216, 245, 0.28), rgba(139, 123, 255, 0.28));
}
.wl-link.is-pass::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--cyan) 42%, var(--violet) 58%, transparent);
  background-size: 50% 100%;
  background-repeat: no-repeat;
  animation: wl-flow 2.2s linear infinite;
}
.wl-link.is-cut { background: repeating-linear-gradient(90deg, rgba(255, 105, 97, 0.75) 0 6px, transparent 6px 11px); }
.wl-link.is-cut i {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  display: grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: #2a1514;
  box-shadow: inset 0 0 0 1px rgba(255, 105, 97, 0.55);
  color: var(--red);
}
.wl-link.is-cut i svg { width: 13px; height: 13px; }
.wl-cap { grid-area: cap; max-width: 720px; font-size: 15px; line-height: 1.6; color: var(--text-2); }
@keyframes wl-flow { from { background-position: -100% 0; } to { background-position: 200% 0; } }
@keyframes wl-flow-v { from { background-position: 0 -100%; } to { background-position: 0 200%; } }

.wl-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}
.wl-fact {
  padding: 24px 22px 26px;
  border-radius: 18px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.wl-fact .num { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.08em; color: var(--tint); }
.wl-fact h3 { margin-top: 10px; font-size: 18px; line-height: 1.3; font-weight: 620; letter-spacing: -0.015em; text-wrap: balance; }
.wl-fact p { margin-top: 8px; font-size: 15px; line-height: 1.55; color: var(--text-2); }
.wl-note {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-top: 14px;
  padding: 22px 24px;
  border-radius: 18px;
  background: rgba(48, 209, 88, 0.06);
  box-shadow: inset 0 0 0 1px rgba(48, 209, 88, 0.22);
}
.wl-note .ico { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: rgba(48, 209, 88, 0.12); color: var(--green); }
.wl-note .ico svg { width: 20px; height: 20px; }
.wl-note p { max-width: 920px; font-size: 16px; line-height: 1.6; color: var(--text-2); }
.wl-note b { color: var(--text); font-weight: 620; }
.wl .src-note { margin-top: 18px; }

/* ---------- download (install steps) ---------- */

.dl-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: end;
}
.qr {
  margin: 0;
  display: grid;
  grid-template-columns: auto 190px;
  gap: 18px;
  align-items: center;
  padding: 14px 18px 14px 14px;
  border-radius: 20px;
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.qr-code { display: block; padding: 9px; border-radius: 13px; background: #fff; }
.qr-code img { width: 92px; height: 92px; }
.qr figcaption { font-size: 14px; line-height: 1.5; color: var(--text-2); }
.plat-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dl-card p { flex: none; }
.dl-card .acts { margin-top: auto; padding-top: 26px; }
.dl-steps { margin-top: 20px; display: grid; gap: 12px; counter-reset: dl; }
.dl-steps li {
  position: relative;
  padding-left: 40px;
  font-size: 15.5px; line-height: 1.55; color: var(--text-2);
  counter-increment: dl;
}
.dl-steps li::before {
  content: counter(dl);
  position: absolute; left: 0; top: -1px;
  display: grid; place-items: center;
  width: 27px; height: 27px; border-radius: 50%;
  background: var(--card-3);
  box-shadow: inset 0 0 0 1px var(--hair-2);
  font-family: var(--mono); font-size: 12.5px; color: var(--tint);
}
.dl-steps a, .card .dl-warn a { color: var(--text); text-decoration: underline; text-decoration-color: var(--hair-2); text-underline-offset: 3px; }
.card .dl-warn {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255, 214, 10, 0.06);
  box-shadow: inset 0 0 0 1px rgba(255, 214, 10, 0.2);
  font-size: 14.5px;
}
.card .btn svg { width: 20px; height: 20px; }
.dl-next {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 16px 22px;
  align-items: center;
  margin-top: 16px;
  padding: 24px 26px;
  border-radius: var(--r-card);
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.dl-next .ico {
  display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--card-3); box-shadow: inset 0 0 0 1px var(--hair);
}
.dl-next .ico svg { width: 24px; height: 24px; }
.dl-next h3 { font-size: 19px; line-height: 1.3; font-weight: 640; letter-spacing: -0.02em; }
.dl-next p { margin-top: 4px; max-width: 640px; font-size: 15px; line-height: 1.55; color: var(--text-2); }
.dl-next .btn { --h: 48px; padding: 0 18px; font-size: 15px; }

/* ---------- server (steps first, terminal second) ---------- */

.server .steps3 { margin-top: 36px; }
.term-label { margin-top: 30px; font-size: 15px; color: var(--text-2); }
.server .term { margin-top: 12px; }
.term-note { margin-top: 14px; max-width: 680px; font-size: 14.5px; line-height: 1.6; color: var(--text-3); }

@media (max-width: 1080px) {
  .wl-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1100px) {
  .wl-diagram { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wl-row {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "label" "path" "cap";
    align-content: start;
    gap: 20px;
    padding: 24px 22px;
  }
  .wl-path { display: flex; flex-direction: column; align-items: stretch; }
  .wl-node { flex-direction: row; gap: 14px; text-align: left; }
  .wl-ico { width: 44px; height: 44px; }
  .wl-name { font-size: 15px; text-wrap: pretty; }
  .wl-link { width: 2px; height: 24px; margin: 4px 0 4px 21px; }
  .wl-link.is-pass { background: linear-gradient(180deg, rgba(54, 216, 245, 0.28), rgba(139, 123, 255, 0.28)); }
  .wl-link.is-pass::after {
    background: linear-gradient(180deg, transparent, var(--cyan) 42%, var(--violet) 58%, transparent);
    background-size: 100% 50%;
    background-repeat: no-repeat;
    animation-name: wl-flow-v;
  }
  .wl-link.is-cut { height: 40px; background: repeating-linear-gradient(180deg, rgba(255, 105, 97, 0.75) 0 5px, transparent 5px 9px); }
}

@media (max-width: 900px) {
  .dl-head { grid-template-columns: minmax(0, 1fr); }
  .qr { display: none; }
  .plat-2 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .wl-diagram { grid-template-columns: minmax(0, 1fr); }
  .wl-facts { grid-template-columns: minmax(0, 1fr); }
  .wl-note { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 20px; }
  .dl-next { grid-template-columns: minmax(0, 1fr); align-items: start; gap: 16px; padding: 22px 20px; }
  .dl-next .btn { justify-content: center; }
  .card .acts .btn { flex: 1 1 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .wl-link.is-pass::after { animation: none; background: linear-gradient(90deg, var(--cyan), var(--violet)); background-size: 100% 100%; opacity: 0.7; }
}
.hero .eyebrow { text-wrap: balance; }