/* AISPORT landing — dark, Apple-presentation pacing, brand lime #B6FF3B.
   No build step: single stylesheet, system text + Oswald display. */

:root {
  --bg: #151517;
  --bg-raise: #1d1d20;
  --bg-card: #202024;
  --line: #2a2a2e;
  --text: #f4f4f5;
  --muted: #9d9da6;
  --lime: #b6ff3b;
  --lime-ink: #10230a;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 28px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.lime { color: var(--lime); }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: .01em;
  text-transform: uppercase;
}

.eyebrow {
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 18px;
  font-weight: 600;
}
.eyebrow--new::before {
  content: "●";
  margin-right: 8px;
  animation: pulse 1.8s ease-in-out infinite;
  display: inline-block;
}
@keyframes pulse { 50% { opacity: .25; transform: scale(.8); } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  transition: transform .25s ease, background .25s ease, color .25s ease;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn--lime { background: var(--lime); color: var(--lime-ink); }
.btn--lime:hover { background: #c9ff66; }
.btn--ghost { border: 1px solid var(--line); color: var(--text); background: rgba(255, 255, 255, .03); }
.btn--ghost:hover { border-color: var(--muted); }
.btn--nav { padding: 10px 22px; font-size: 14px; }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-solid {
  background: rgba(21, 21, 23, .78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-color: var(--line);
}
.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px var(--pad);
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav__logo { flex: 0 0 auto; display: flex; }
.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 14.5px;
  color: var(--muted);
}
.nav__links a { transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__burger { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(120px, 16vh, 190px) var(--pad) 0;
  text-align: center;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  top: -260px;
  left: 50%;
  width: 900px;
  height: 620px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(182, 255, 59, .16), transparent 70%);
  pointer-events: none;
}
.hero__copy { position: relative; max-width: 820px; margin: 0 auto; }
.hero__title {
  font-size: clamp(64px, 13vw, 168px);
  margin: 6px 0 26px;
}
.hero__sub {
  max-width: 560px;
  margin: 0 auto 34px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
}
.hero__cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero__phones {
  position: relative;
  margin: clamp(48px, 7vw, 90px) auto -8vw;
  max-width: 1080px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}
.phone {
  border-radius: clamp(18px, 2.6vw, 34px);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .55);
  border: 1px solid #2c2c30;
}
.phone--main { width: min(340px, 42vw); z-index: 2; animation: float 7s ease-in-out infinite; }
.phone--left, .phone--right {
  width: min(280px, 34vw);
  opacity: .55;
  filter: brightness(.8);
}
.phone--left  { transform: translate(9%, 6%)  rotate(-7deg); animation: float 8s 1s ease-in-out infinite; }
.phone--right { transform: translate(-9%, 6%) rotate(7deg);  animation: float 9s .5s ease-in-out infinite; }
@keyframes float { 50% { translate: 0 -12px; } }

/* ---------- ticker ---------- */
.ticker {
  border-block: 1px solid var(--line);
  background: var(--bg-raise);
  overflow: hidden;
  padding: 16px 0;
  margin-top: 10vw;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker__track {
  display: flex;
  gap: 26px;
  width: max-content;
  animation: ticker 34s linear infinite;
  font-family: var(--display);
  font-weight: 600;
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.ticker__track i { color: var(--lime); font-style: normal; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- manifest ---------- */
.manifest {
  padding: clamp(90px, 12vw, 170px) var(--pad);
  text-align: center;
}
.manifest__title { font-size: clamp(40px, 7.4vw, 96px); margin-bottom: 28px; }
.manifest__text { max-width: 640px; margin: 0 auto; color: var(--muted); font-size: clamp(17px, 2vw, 21px); }

/* ---------- features ---------- */
.features { display: grid; gap: clamp(70px, 9vw, 150px); padding: 0 var(--pad) clamp(90px, 11vw, 160px); }
.feature {
  max-width: 1120px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: center;
  gap: clamp(36px, 6vw, 90px);
}
.feature--flip .feature__media { order: 2; }
.feature--flip .feature__copy  { order: 1; }
.feature__media { display: flex; justify-content: center; }
.phone-frame {
  width: min(330px, 78vw);
  border-radius: clamp(18px, 2.6vw, 32px);
  border: 1px solid #2c2c30;
  box-shadow: 0 34px 80px rgba(0, 0, 0, .5);
}
.feature__copy h3 { font-size: clamp(32px, 4.6vw, 56px); margin-bottom: 18px; }
.feature__copy p { color: var(--muted); max-width: 470px; }
.feature__copy strong { color: var(--text); font-weight: 600; }

/* game mock (Targets/Tennis, pure CSS) */
.game-mock {
  position: relative;
  width: min(460px, 86vw);
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid #2c2c30;
  background:
    radial-gradient(120% 90% at 70% 20%, #26262b, transparent),
    linear-gradient(160deg, #1b1b1f, #101013);
  box-shadow: 0 34px 80px rgba(0, 0, 0, .5);
  overflow: hidden;
}
.game-mock__hud {
  position: absolute;
  inset: 16px 20px auto;
  display: flex;
  justify-content: space-between;
  font-family: var(--display);
  font-weight: 700;
  font-size: 26px;
}
.game-mock__score { color: var(--lime); }
.game-mock__timer { color: var(--text); opacity: .85; }
.game-mock__target {
  position: absolute;
  border: 4px solid var(--lime);
  border-radius: 18px;
  box-shadow: 0 0 24px rgba(182, 255, 59, .35), inset 0 0 18px rgba(182, 255, 59, .12);
}
.game-mock__target--a { width: 26%; height: 34%; left: 12%; top: 22%; animation: target 4s ease-in-out infinite; }
.game-mock__target--b { width: 18%; height: 26%; right: 14%; bottom: 16%; animation: target 4s 2s ease-in-out infinite; }
@keyframes target { 0%, 100% { opacity: .35; transform: scale(.92); } 50% { opacity: 1; transform: scale(1); } }
.game-mock__ball {
  position: absolute;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #dcff9a, var(--lime) 60%, #7fbf1d);
  box-shadow: 0 6px 18px rgba(182, 255, 59, .45);
  animation: ball 3.4s cubic-bezier(.45, 0, .55, 1) infinite;
  left: 12%;
  bottom: 18%;
}
@keyframes ball {
  0%   { translate: 0 0; }
  25%  { translate: 16vw -9vw; }
  50%  { translate: 26vw 0; }
  75%  { translate: 12vw -5vw; }
  100% { translate: 0 0; }
}
.game-mock__hint {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  font-size: 12.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

/* ---------- anywhere ---------- */
.anywhere {
  background: var(--bg-raise);
  border-block: 1px solid var(--line);
  padding: clamp(80px, 10vw, 150px) var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 90px);
  align-items: center;
  max-width: 100%;
}
.anywhere__copy { max-width: 520px; margin-left: auto; }
.anywhere__copy h2 { font-size: clamp(36px, 5.4vw, 68px); margin-bottom: 20px; }
.anywhere__copy p { color: var(--muted); }
.anywhere__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 560px;
}
.anywhere__grid img {
  border-radius: 22px;
  aspect-ratio: 1;
  object-fit: cover;
}
.anywhere__grid img:nth-child(2) { translate: 0 26px; }
.anywhere__grid img:nth-child(3) { translate: 0 -10px; }

/* ---------- challenges ---------- */
.challenges { padding: clamp(90px, 11vw, 160px) var(--pad); max-width: 1200px; margin: 0 auto; }
.section-title { font-size: clamp(36px, 6vw, 78px); text-align: center; margin-bottom: 18px; }
.section-sub { text-align: center; color: var(--muted); max-width: 560px; margin: 0 auto 54px; }
.challenges__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .35s ease, border-color .35s ease;
}
.card:hover { transform: translateY(-6px); border-color: #3a3a40; }
.card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.card__body { padding: 22px 24px 26px; }
.card__body h4 { font-size: 24px; margin-bottom: 10px; }
.card__body p { color: var(--muted); font-size: 15.5px; }

/* ---------- b2b ---------- */
.b2b {
  background: var(--bg-raise);
  border-block: 1px solid var(--line);
  padding: clamp(80px, 10vw, 150px) var(--pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 90px);
  align-items: center;
}
.b2b__phones { position: relative; display: flex; justify-content: center; }
.b2b__phones .phone-frame { width: min(300px, 60vw); }
.b2b__phone-back {
  position: absolute;
  translate: 34% 8%;
  z-index: -1;
  opacity: .5;
  filter: brightness(.75);
  rotate: 6deg;
}
.b2b__copy { max-width: 520px; }
.b2b__copy h2 { font-size: clamp(36px, 5.4vw, 68px); margin-bottom: 20px; }
.b2b__copy p { color: var(--muted); margin-bottom: 28px; }

/* ---------- download ---------- */
.download {
  position: relative;
  text-align: center;
  padding: clamp(100px, 13vw, 190px) var(--pad);
  overflow: hidden;
}
.download__glow {
  position: absolute;
  bottom: -320px;
  left: 50%;
  width: 1000px;
  height: 640px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(182, 255, 59, .14), transparent 70%);
  pointer-events: none;
}
.download h2 { font-size: clamp(44px, 8vw, 110px); margin-bottom: 16px; }
.download > p { color: var(--muted); margin-bottom: 40px; }
.download__badges { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; }
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: #0b0b0d;
  border-radius: 16px;
  padding: 12px 24px 12px 18px;
  transition: transform .25s ease;
}
.store-badge:hover { transform: translateY(-3px); }
.store-badge span { display: flex; flex-direction: column; text-align: left; line-height: 1.15; font-weight: 700; font-size: 19px; }
.store-badge small { font-weight: 500; font-size: 11.5px; opacity: .65; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 40px var(--pad) 56px; }
.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.footer__links { display: flex; gap: 22px; font-size: 14px; color: var(--muted); margin-right: auto; }
.footer__links a:hover { color: var(--text); }
.footer p { font-size: 13px; color: var(--muted); }

/* ---------- legal pages (privacy.html) ---------- */
.legal {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(110px, 14vh, 150px) var(--pad) 80px;
}
.legal [id] { scroll-margin-top: 90px; }
/* 8vw keeps "КОНФИДЕНЦИАЛЬНОСТИ" on a 320px screen. */
.legal h1 { font-size: clamp(24px, 8vw, 58px); overflow-wrap: anywhere; margin-bottom: 14px; }
.legal h2 {
  font-family: var(--body);
  font-size: 21px;
  line-height: 1.3;
  text-transform: none;
  letter-spacing: 0;
  margin: 40px 0 12px;
}
.legal p, .legal li { color: #d4d4d8; }
.legal p + p { margin-top: 12px; }
.legal ul { padding-left: 22px; margin-top: 10px; }
.legal li + li { margin-top: 6px; }
.legal a { color: var(--lime); text-decoration: underline; text-underline-offset: 3px; }
.legal strong { color: var(--text); }
.legal__meta { color: var(--muted); font-size: 15px; }
.legal__langs { display: flex; gap: 10px; margin: 22px 0 6px; }
.legal__langs a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
}
.legal__langs a:hover { border-color: var(--muted); }
.legal__lang + .legal__lang {
  border-top: 1px solid var(--line);
  margin-top: 72px;
  padding-top: 56px;
}

/* ---------- reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .8s cubic-bezier(.2, .65, .3, 1), transform .8s cubic-bezier(.2, .65, .3, 1);
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .phone, .ticker__track, .game-mock__ball, .game-mock__target, .eyebrow--new::before { animation: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .feature, .anywhere, .b2b { grid-template-columns: 1fr; }
  .feature--flip .feature__media { order: 0; }
  .feature__copy { text-align: center; }
  .feature__copy p { margin-inline: auto; }
  .anywhere__copy { margin: 0 auto; text-align: center; }
  .anywhere__grid { margin: 0 auto; }
  .b2b__copy { margin: 0 auto; text-align: center; }
  .b2b__phone-back { translate: 16% 6%; }
  .challenges__grid { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .hero__phones { margin-bottom: -14vw; }
  .phone--left, .phone--right { display: none; }
  .phone--main { width: min(320px, 74vw); }

  .nav__links {
    position: fixed;
    inset: 0;
    background: rgba(21, 21, 23, .96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 34px;
    font-size: 24px;
    color: var(--text);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
  }
  .nav__links.open { opacity: 1; pointer-events: auto; }
  .btn--nav { margin-left: auto; }
  .nav__burger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: 0;
    padding: 8px;
    cursor: pointer;
    z-index: 60;
  }
  .nav__burger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: transform .3s ease, translate .3s ease;
  }
  .nav__burger[aria-expanded="true"] span:first-child { transform: rotate(45deg); translate: 0 4px; }
  .nav__burger[aria-expanded="true"] span:last-child  { transform: rotate(-45deg); translate: 0 -4px; }
}

@media (max-width: 360px) {
  .nav__inner { gap: 14px; }
  .nav__logo img { height: 21px; }
}

@media (max-width: 560px) {
  .eyebrow { font-size: 11px; letter-spacing: .13em; }
  .hero__title { font-size: clamp(52px, 15.5vw, 64px); }
  .manifest__title br, .anywhere__copy h2 br, .b2b__copy h2 br { display: none; }
  .manifest__title { font-size: clamp(32px, 9.6vw, 40px); }
  .section-title, .download h2 { font-size: clamp(32px, 9.6vw, 44px); }
  .feature__copy h3 { font-size: clamp(28px, 8.6vw, 32px); }
  .ticker__track { font-size: 16px; }
}