/* ===== AI Zone — лендинг ===== */
:root {
  --bg: #07070c;
  --bg-soft: #0d0e16;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f5fb;
  --text-dim: #a6a8b8;
  --text-faint: #6b6d80;
  --violet: #7c5cff;
  --violet-2: #9d7bff;
  --cyan: #2bd6ff;
  --pink: #ff5ca8;
  --grad: linear-gradient(120deg, #7c5cff 0%, #5b8bff 45%, #2bd6ff 100%);
  --grad-soft: linear-gradient(120deg, rgba(124,92,255,.18), rgba(43,214,255,.18));
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 30px 80px -30px rgba(124, 92, 255, 0.45);
  --maxw: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Manrope', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: 'Sora', 'Manrope', sans-serif; line-height: 1.12; letter-spacing: -0.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 800px; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== Фон ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}
.bg-glow {
  position: fixed; z-index: -1; border-radius: 50%;
  filter: blur(120px); opacity: .5; pointer-events: none;
}
.bg-glow--1 { width: 600px; height: 600px; top: -200px; left: -100px; background: #6b3cff; }
.bg-glow--2 { width: 500px; height: 500px; top: 200px; right: -150px; background: #1f8fff; opacity: .35; }

/* ===== Кнопки ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: 'Manrope', sans-serif; font-weight: 700; font-size: 15px;
  padding: 12px 22px; border-radius: 12px; border: 1px solid transparent;
  cursor: pointer; transition: transform .18s ease, box-shadow .25s ease, background .2s ease, border-color .2s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 30px -8px rgba(124, 92, 255, .6);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -8px rgba(124, 92, 255, .75); }
.btn--ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--surface-2); border-color: var(--border-strong); }
.btn--light { background: #fff; color: #0b0b12; }
.btn--light:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -10px rgba(255,255,255,.3); }
.btn--lg { padding: 16px 30px; font-size: 16px; border-radius: 14px; }
.btn--block { width: 100%; }

/* ===== Навигация ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  padding: 16px 0;
  transition: background .3s, border-color .3s, padding .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7,7,12,.8);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
  padding: 12px 0;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 9px; font-family: 'Sora', 'Manrope', system-ui, sans-serif; font-weight: 800; font-size: 20px; }
.logo__mark {
  display: grid; place-items: center; width: 44px; height: 44px;
  filter: drop-shadow(0 6px 14px rgba(124,92,255,.55));
}
.nav__links { display: flex; gap: 30px; font-weight: 600; font-size: 15px; color: var(--text-dim); }
.nav__links a { transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.nav__actions { display: flex; gap: 10px; }

/* ===== Hero ===== */
.hero { padding: 70px 0 40px; text-align: center; position: relative; }
.hero__inner { display: flex; flex-direction: column; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px; border-radius: 100px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 14px; font-weight: 600; color: var(--text-dim);
  margin-bottom: 28px;
}
.badge__dot { width: 7px; height: 7px; border-radius: 50%; background: #43e08e; box-shadow: 0 0 0 3px rgba(67,224,142,.2); }
.hero__title { font-size: clamp(38px, 6vw, 70px); font-weight: 800; margin-bottom: 22px; }
.hero__subtitle { font-size: clamp(16px, 2vw, 20px); color: var(--text-dim); max-width: 620px; margin-bottom: 34px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-bottom: 30px; }
.hero__trust { display: flex; align-items: center; gap: 12px; color: var(--text-dim); font-size: 14px; }
.hero__trust strong { color: var(--text); }
.avatars { display: flex; }
.avatars span {
  width: 30px; height: 30px; border-radius: 50%; margin-left: -8px;
  border: 2px solid var(--bg);
  background: var(--grad); display: inline-block;
}
.avatars span:nth-child(2){ background: linear-gradient(120deg,#ff5ca8,#ff9f5c); }
.avatars span:nth-child(3){ background: linear-gradient(120deg,#2bd6ff,#43e08e); }
.avatars span:nth-child(4){ background: linear-gradient(120deg,#9d7bff,#5b8bff); }

/* Мокап */
.hero__mockup { margin-top: 56px; width: 100%; max-width: 860px; perspective: 1400px; }
.mockup {
  border-radius: var(--radius-lg); overflow: hidden;
  background: linear-gradient(180deg, #11121d, #0a0b12);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,.02);
  transform: rotateX(8deg); transform-origin: top center;
  animation: floatMock 6s ease-in-out infinite;
}
@keyframes floatMock { 0%,100%{ transform: rotateX(8deg) translateY(0);} 50%{ transform: rotateX(8deg) translateY(-10px);} }
.mockup__bar { display: flex; align-items: center; gap: 8px; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.mockup__bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #2c2e3e; }
.mockup__bar .dot:first-child { background: #ff5f57; }
.mockup__bar .dot:nth-child(2){ background: #febc2e; }
.mockup__bar .dot:nth-child(3){ background: #28c840; }
.mockup__pill { margin-left: auto; font-size: 13px; font-weight: 700; padding: 5px 14px; border-radius: 100px; background: var(--grad-soft); border: 1px solid var(--border); color: var(--violet-2); }
.mockup__body { padding: 26px; text-align: left; display: flex; flex-direction: column; gap: 16px; min-height: 220px; }
.msg { max-width: 80%; padding: 14px 18px; border-radius: 16px; font-size: 15px; }
.msg--user { align-self: flex-end; background: var(--grad); color: #fff; border-bottom-right-radius: 4px; }
.msg--bot { align-self: flex-start; display: flex; gap: 12px; background: var(--surface); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.msg__avatar { flex-shrink: 0; width: 28px; height: 28px; display: grid; place-items: center; }
.msg__text { color: var(--text-dim); }
.msg__text strong { color: var(--text); }
.type-line { display: block; opacity: 0; animation: typeIn .5s ease forwards; }
.type-line:nth-child(2){ animation-delay: .6s; } .type-line:nth-child(3){ animation-delay: 1s; }
.type-line:nth-child(4){ animation-delay: 1.4s; } .type-line:nth-child(5){ animation-delay: 1.8s; }
@keyframes typeIn { from { opacity: 0; transform: translateY(6px);} to { opacity: 1; transform: none;} }

/* ===== Логотипы ===== */
.logos { padding: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.logos__inner { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.logos__label { font-size: 13px; text-transform: uppercase; letter-spacing: .15em; color: var(--text-faint); }
.logos__row { display: flex; flex-wrap: wrap; gap: 16px 44px; justify-content: center; font-family: 'Sora', 'Manrope', system-ui, sans-serif; font-weight: 700; font-size: 20px; color: var(--text-faint); }
.logos__row span { transition: color .2s; }
.logos__row span:hover { color: var(--text-dim); }

/* ===== Секции ===== */
.section { padding: 100px 0; }
.section--alt { background: linear-gradient(180deg, transparent, rgba(124,92,255,.04), transparent); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; color: var(--violet-2); margin-bottom: 14px; }
.section__head h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; margin-bottom: 14px; }
.section__head p { color: var(--text-dim); font-size: 17px; }

/* ===== Карточки возможностей ===== */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: transform .25s, border-color .25s, background .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card__icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 24px; margin-bottom: 18px; }
.icon--violet { background: rgba(124,92,255,.16); } .icon--cyan { background: rgba(43,214,255,.16); }
.icon--green { background: rgba(67,224,142,.16); } .icon--orange { background: rgba(255,159,92,.16); }
.icon--pink { background: rgba(255,92,168,.16); } .icon--blue { background: rgba(91,139,255,.16); }
.card h3 { font-size: 20px; margin-bottom: 9px; }
.card p { color: var(--text-dim); font-size: 15px; }

/* ===== Модели ===== */
.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.model-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: transform .25s, border-color .25s; }
.model-card:hover { transform: translateY(-4px); }
.model-card--featured { border-color: rgba(124,92,255,.5); background: var(--grad-soft); box-shadow: 0 24px 60px -30px rgba(124,92,255,.6); }
.model-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.model-card__name { font-family: 'Sora', 'Manrope', system-ui, sans-serif; font-weight: 700; font-size: 19px; }
.model-card p { color: var(--text-dim); font-size: 15px; margin-bottom: 16px; }
.model-card__list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.model-card__list li { position: relative; padding-left: 24px; font-size: 14px; color: var(--text-dim); }
.model-card__list li::before { content: "✓"; position: absolute; left: 0; color: var(--cyan); font-weight: 800; }
.tag { font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 100px; }
.tag--free { background: rgba(67,224,142,.16); color: #43e08e; }
.tag--pro { background: var(--grad); color: #fff; }
.tag--base { background: var(--surface-2); color: var(--text-dim); border: 1px solid var(--border); }

/* ===== Тарифы ===== */
.pricing { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.token-costs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 30px; }
.token-cost { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 20px 14px; text-align: center; transition: transform .2s, border-color .2s; }
.token-cost:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.token-cost__n { display: block; font-family: 'Sora', sans-serif; font-weight: 800; font-size: 30px; line-height: 1; margin-bottom: 8px; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.token-cost__l { font-size: 13px; color: var(--text-dim); }
.pricing__note { text-align: center; margin-top: 26px; color: var(--text-dim); font-size: 15px; }
.pricing__note strong { color: var(--text); }
@media (max-width: 760px) { .token-costs { grid-template-columns: 1fr 1fr 1fr; } }
@media (max-width: 460px) { .token-costs { grid-template-columns: 1fr 1fr; } }
.price-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; }
.price-card--featured { border-color: rgba(124,92,255,.6); background: linear-gradient(180deg, rgba(124,92,255,.12), rgba(43,214,255,.04)); box-shadow: var(--shadow); transform: scale(1.03); }
.price-card__ribbon { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--grad); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 16px; border-radius: 100px; }
.price-card__head h3 { font-size: 22px; margin-bottom: 4px; }
.price-card__head p { color: var(--text-dim); font-size: 14px; margin-bottom: 20px; }
.price-card__price { font-family: 'Sora', 'Manrope', system-ui, sans-serif; font-weight: 800; font-size: 42px; margin-bottom: 24px; }
.price-card__price span { font-size: 15px; font-weight: 500; color: var(--text-faint); font-family: 'Manrope', system-ui, sans-serif; }
.price-card__list { list-style: none; display: flex; flex-direction: column; gap: 11px; margin-bottom: 28px; flex: 1; }
.price-card__list li { font-size: 15px; color: var(--text-dim); }
.price-card__list li::first-letter { color: var(--cyan); }

/* ===== CTA band ===== */
.cta-band { padding: 30px 0; }
.cta-band__inner { text-align: center; background: var(--grad); border-radius: var(--radius-lg); padding: 64px 32px; position: relative; overflow: hidden; }
.cta-band__inner::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 80% 120%, rgba(255,255,255,.25), transparent 50%); }
.cta-band h2 { font-size: clamp(28px, 4vw, 40px); color: #fff; margin-bottom: 12px; position: relative; }
.cta-band p { color: rgba(255,255,255,.85); font-size: 18px; margin-bottom: 28px; position: relative; }
.cta-band .btn { position: relative; }

/* ===== FAQ ===== */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 4px 22px; transition: border-color .2s; }
.faq__item[open] { border-color: var(--border-strong); }
.faq__item summary { list-style: none; cursor: pointer; padding: 18px 0; font-weight: 700; font-size: 17px; display: flex; justify-content: space-between; align-items: center; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; font-size: 24px; color: var(--violet-2); font-weight: 400; transition: transform .2s; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { color: var(--text-dim); padding-bottom: 20px; font-size: 15px; }

/* ===== Footer ===== */
.footer { position: relative; margin-top: 0; padding-bottom: 28px; overflow: hidden; }

/* CTA-баннер */
.footer-cta {
  position: relative; text-align: center; padding: 64px 32px 60px;
  border-radius: var(--radius-lg); border: 1px solid var(--border-strong);
  background:
    radial-gradient(70% 130% at 50% 0%, rgba(124, 92, 255, .22), transparent 65%),
    radial-gradient(50% 100% at 85% 100%, rgba(43, 214, 255, .12), transparent 70%),
    var(--bg-soft);
  box-shadow: var(--shadow);
}
.footer-cta h2 { font-size: clamp(28px, 4.2vw, 42px); margin-bottom: 12px; }
.footer-cta p { color: var(--text-dim); font-size: 17px; margin-bottom: 30px; }

.footer__inner { display: grid; grid-template-columns: 1.4fr 2fr; gap: 40px; padding: 70px 0 46px; }
.footer__brand p { color: var(--text-dim); margin-top: 16px; max-width: 280px; font-size: 15px; }
.footer__socials { display: flex; gap: 10px; margin-top: 22px; }
.footer__soc {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-dim);
  transition: color .2s, background .2s, border-color .2s, transform .18s;
}
.footer__soc:hover { color: var(--text); background: var(--surface-2); border-color: var(--border-strong); transform: translateY(-2px); }

.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__col h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .14em; color: var(--text-faint); margin-bottom: 16px; }
.footer__col a { display: block; width: fit-content; color: var(--text-dim); font-size: 15px; padding: 6px 0; transition: color .2s, transform .2s; }
.footer__col a:hover { color: var(--text); transform: translateX(3px); }

.footer__bottom { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-faint); font-size: 13px; }

/* Гигантская подпись-водяной знак */
.footer__watermark {
  font-family: 'Sora', sans-serif; font-weight: 800; text-align: center; white-space: nowrap;
  font-size: clamp(90px, 15vw, 220px); line-height: .82; letter-spacing: -.04em;
  margin-top: 44px; margin-bottom: -.22em;
  background: linear-gradient(180deg, rgba(124, 92, 255, .22), rgba(43, 214, 255, .05) 60%, transparent 95%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  user-select: none; pointer-events: none;
}

/* ===== Reveal-анимация ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== Адаптив ===== */
@media (max-width: 900px) {
  .features, .models, .pricing { grid-template-columns: 1fr 1fr; }
  .nav__links { display: none; }
  .price-card--featured { transform: none; }
  .footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .features, .models, .pricing { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
  .footer-cta { padding: 44px 20px 40px; }
  .footer-cta p { font-size: 15px; }
  .footer__inner { padding: 50px 0 36px; }
  .footer__watermark { margin-top: 26px; }
  .nav__actions .btn--ghost { display: none; }
  .hero { padding: 36px 0 20px; }
  .hero__cta { width: 100%; }
  .hero__cta .btn { flex: 1 1 auto; }
  .hero__mockup { margin-top: 36px; }
  .logos__row { gap: 12px 26px; font-size: 16px; }
  .cta-band__inner { padding: 44px 20px; }
  .bento__tile { padding: 20px; }
  .price-card { padding: 26px 20px; }
  .faq__item { padding: 2px 16px; }
  .faq__item summary { font-size: 15.5px; }
  .compare__row > div { padding: 4px 14px; font-size: 14px; }
}

/* ============================================================
   Усиленные анимации (тот же стиль и цвет)
   ============================================================ */

/* Анимированный градиент в заголовке */
.grad-text {
  background: linear-gradient(120deg, #7c5cff, #5b8bff 30%, #2bd6ff 55%, #9d7bff 80%, #7c5cff);
  background-size: 280% 100%;
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  animation: gradFlow 9s ease-in-out infinite;
}
@keyframes gradFlow { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

/* Свечения: пульс по прозрачности (сдвиг — через JS-параллакс) */
.bg-glow { transition: transform 0.4s ease-out; }
.bg-glow--1 { animation: glowPulse 8s ease-in-out infinite; }
.bg-glow--2 { animation: glowPulse 11s ease-in-out infinite; }
@keyframes glowPulse { 0%,100% { opacity: .45; } 50% { opacity: .7; } }

/* Бейдж: пульсирующая точка + лёгкое свечение */
.badge { position: relative; }
.badge__dot { animation: dotPulse 2s ease-in-out infinite; }
@keyframes dotPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(67,224,142,.5); }
  50%     { box-shadow: 0 0 0 6px rgba(67,224,142,0); }
}

/* Кнопки: блеск-проводка + мягкое пульсирующее свечение у главной CTA */
.btn--primary { position: relative; overflow: hidden; }
.btn--primary > * { position: relative; z-index: 1; }
.btn--primary::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 45%;
  background: linear-gradient(110deg, transparent, rgba(255,255,255,.45), transparent);
  transform: translateX(-180%) skewX(-18deg); pointer-events: none;
}
.btn--primary:hover::after { transition: transform .7s ease; transform: translateX(320%) skewX(-18deg); }
.hero__cta .btn--primary { animation: ctaGlow 3.2s ease-in-out infinite; }
@keyframes ctaGlow {
  0%,100% { box-shadow: 0 10px 30px -8px rgba(124,92,255,.6); }
  50%     { box-shadow: 0 14px 40px -6px rgba(124,92,255,.9), 0 0 0 1px rgba(124,92,255,.3); }
}

/* Карточки возможностей: спотлайт за курсором */
.card { position: relative; overflow: hidden; }
.card::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .35s;
  background: radial-gradient(460px circle at var(--mx, 50%) var(--my, 50%), rgba(124,92,255,.18), transparent 45%);
}
.card:hover::after { opacity: 1; }
.card .card__icon { transition: transform .3s ease; }
.card:hover .card__icon { transform: translateY(-3px) scale(1.06); }

/* Тариф «Premium»: анимированная градиентная рамка */
.price-card--featured::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; pointer-events: none;
  background: linear-gradient(120deg, #7c5cff, #2bd6ff, #9d7bff, #7c5cff);
  background-size: 300% 100%;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: borderFlow 6s linear infinite;
}
@keyframes borderFlow { to { background-position: 300% 0; } }

/* CTA-полоса: переливающийся градиент */
.cta-band__inner { background-size: 200% 200%; animation: ctaFlow 9s ease infinite; }
@keyframes ctaFlow { 0%,100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

/* Макет чата: плавающий родитель + 3D-наклон от мыши */
.hero__mockup { animation: floatMock 6s ease-in-out infinite; }
.mockup { animation: none; transition: transform .18s ease-out; will-change: transform; }
@keyframes floatMock { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* Бегущая строка логотипов */
.logos__row { display: block; width: 100%; max-width: 820px; overflow: hidden;
  -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.logos__track { display: inline-flex; gap: 44px; width: max-content; white-space: nowrap; animation: marquee 24s linear infinite; }
.logos__track span { flex: none; }
.logos__row:hover .logos__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Секция «Как это работает» — 3 шага */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step {
  position: relative; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 30px; overflow: hidden;
  transition: transform .25s, border-color .25s, background .25s;
}
.step:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.step::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.step:hover::before { transform: scaleX(1); }
.step__num {
  font-family: 'Sora', sans-serif; font-weight: 800; font-size: 44px; line-height: 1; margin-bottom: 16px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.step h3 { font-size: 20px; margin-bottom: 9px; }
.step p { color: var(--text-dim); font-size: 15px; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* ===== Бенто-сетка возможностей ===== */
.bento {
  display: grid; grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(150px, 1fr); gap: 16px; grid-auto-flow: dense;
}
.bento__tile {
  position: relative; overflow: hidden; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform .25s, border-color .25s, background .25s;
}
.bento__tile:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.bento__tile::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .35s;
  background: radial-gradient(440px circle at var(--mx, 50%) var(--my, 50%), rgba(124, 92, 255, .16), transparent 45%);
}
.bento__tile:hover::after { opacity: 1; }
.bento__big { grid-column: span 2; grid-row: span 2; }
.bento__wide { grid-column: span 2; }
.bento__icon {
  width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center;
  background: rgba(124, 92, 255, .1); border: 1px solid var(--border); margin-bottom: 16px;
}
.bento__icon svg { width: 26px; height: 26px; }
.bento__tile h3 { font-size: 19px; margin-bottom: 8px; }
.bento__tile p { color: var(--text-dim); font-size: 15px; }
.bento__big h3 { font-size: 24px; }
.bento__big p { font-size: 16px; max-width: 400px; }
.bento__demo { margin-top: auto; display: flex; flex-direction: column; gap: 9px; padding-top: 22px; }
.b-bubble { padding: 11px 15px; border-radius: 14px; font-size: 14px; line-height: 1.5; max-width: 88%; }
.b-bubble--u { align-self: flex-end; background: var(--grad); color: #fff; border-bottom-right-radius: 4px; }
.b-bubble--a { align-self: flex-start; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-dim); border-bottom-left-radius: 4px; }
@media (max-width: 760px) {
  .bento { grid-template-columns: 1fr; }
  .bento__big, .bento__wide { grid-column: span 1; grid-row: auto; }
}

/* ===== Печатающийся герой ===== */
.demo-caret { display: inline-block; width: 2px; height: 1em; background: #fff; margin-left: 1px; vertical-align: text-bottom; animation: caretBlink 1s steps(1) infinite; }
@keyframes caretBlink { 50% { opacity: 0; } }
.demo-dots { display: inline-flex; gap: 5px; padding: 2px 0; }
.demo-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--violet-2); animation: demoBlink 1.2s infinite both; }
.demo-dots i:nth-child(2) { animation-delay: .2s; } .demo-dots i:nth-child(3) { animation-delay: .4s; }
@keyframes demoBlink { 0%,60%,100% { opacity: .25; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

/* ===== Сравнение AI Zone vs ChatGPT ===== */
.compare { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.compare__row { display: grid; grid-template-columns: 1.5fr 1fr 1fr; align-items: center; border-bottom: 1px solid var(--border); }
.compare__row:last-child { border-bottom: none; }
.compare__row > div { padding: 16px 22px; font-size: 15px; }
.compare__head { background: var(--surface-2); font-weight: 700; font-size: 14px; }
.compare__head .compare__neuron { color: var(--violet-2); }
.compare__feat { color: var(--text); }
.compare__neuron {
  color: var(--text); border-left: 1px solid var(--border); border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(124, 92, 255, .09), rgba(43, 214, 255, .03));
}
.compare__other { color: var(--text-dim); }
.compare .ok { color: #43e08e; font-weight: 800; margin-right: 7px; }
.compare .no { color: #ff6b6b; font-weight: 800; margin-right: 7px; }
.compare .pt { color: #ffb15c; font-weight: 800; margin-right: 7px; }
@media (max-width: 680px) {
  .compare__head { display: none; }
  .compare__row { grid-template-columns: 1fr; padding: 14px 0; gap: 2px; }
  .compare__row > div { padding: 4px 18px; }
  .compare__feat { font-weight: 700; padding-bottom: 4px; }
  .compare__neuron, .compare__other { border: none; background: none; }
  .compare__neuron::before { content: "AI Zone — "; color: var(--violet-2); font-weight: 700; }
  .compare__other::before { content: "ChatGPT — "; color: var(--text-faint); font-weight: 700; }
}

/* Уважение к настройке «меньше движения» */
@media (prefers-reduced-motion: reduce) {
  .grad-text, .bg-glow, .badge__dot, .hero__cta .btn--primary,
  .price-card--featured::before, .cta-band__inner, .hero__mockup, .logos__track,
  .demo-caret, .demo-dots i {
    animation: none !important;
  }
}