@font-face {
  font-family: "Rubik";
  src: url("../assets/fonts/rubik/Rubik-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Rubik";
  src: url("../assets/fonts/rubik/Rubik-Medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Rubik";
  src: url("../assets/fonts/rubik/Rubik-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Rubik";
  src: url("../assets/fonts/rubik/Rubik-Black.woff2") format("woff2");
  font-weight: 900;
  font-display: swap;
}

:root {
  --bg: #06080c;
  --bg-2: #0b0f16;
  --line: #23272f;
  --text: #f2f3f5;
  --muted: #9aa1ab;
  --accent: #00abff;
  --accent-2: #ff7a1c;
  --on-accent: #04121c;

  --fps: #4ade80;

  --font-ui: "Rubik", "Segoe UI", system-ui, sans-serif;
  --font-mono: Consolas, "Cascadia Mono", ui-monospace, "Courier New", monospace;

  --shell: 1160px;
  --radius: 18px;
  --radius-lg: 24px;

  --soft-mask: radial-gradient(
    72% 72% at 50% 50%,
    #000 50%,
    rgba(0, 0, 0, 0.6) 78%,
    rgba(0, 0, 0, 0) 100%
  );
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.mono {
  font-family: var(--font-mono);
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.shell-narrow {
  max-width: 820px;
}

.center {
  text-align: center;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--on-accent);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(6, 8, 12, 0.88);
  backdrop-filter: none;
  border-bottom: 1px solid var(--line);
}

.head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  flex-wrap: wrap;
  min-height: 64px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  color: var(--text);
  flex: none;
}

.brand-name {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.42em;
  margin-right: -0.42em;
  translate: 0 1px;
}

.brand-beta {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 4px;
  translate: 0 -6px;
}

.brand-sub {
  color: var(--muted);
  font-size: 13px;
  padding-left: 12px;
  margin-left: 4px;
  border-left: 1px solid var(--line);
}

@media (max-width: 620px) {
  .brand-sub {
    display: none;
  }
}

.head-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
}

.link-quiet {
  color: var(--muted);
  text-decoration: none;
}

.link-quiet:hover,
.link-quiet:focus-visible {
  color: var(--text);
}

.lang {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.lang-btn {
  background: none;
  border: 0;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
}

.lang-btn[aria-pressed="true"] {
  color: var(--text);
}

.lang-btn:hover {
  color: var(--accent);
}

.lang-sep {
  color: var(--line);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--reveal-delay, 0s);
    will-change: opacity, transform;
  }

  .reveal.is-visible {
    opacity: 1;
    transform: none;
    will-change: auto;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.lead {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 18px;
}

.band {
  padding: 84px 0;
  border-top: 1px solid var(--line);
}

.band-alt {
  background: var(--bg-2);
}

.band p {
  color: var(--muted);
  margin-bottom: 14px;
}

.band p:last-child {
  margin-bottom: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #2bbcff;
  border-color: #2bbcff;
  color: var(--on-accent);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 16px;
}

.hero {
  padding: 96px 0 84px;

  background:
    radial-gradient(58% 44% at 50% 0%, rgba(255, 122, 28, 0.13) 0%, rgba(255, 122, 28, 0) 70%),
    radial-gradient(46% 40% at 18% 30%, rgba(0, 171, 255, 0.1) 0%, rgba(0, 171, 255, 0) 70%);
}

.hero .shell {
  text-align: center;
}

.hero-title {
  font-size: clamp(40px, 8vw, 86px);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero-sub {
  display: block;
  font-size: clamp(17px, 3.1vw, 33px);
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--accent-2);
  margin-top: 10px;
}

.hero-lead {
  max-width: 660px;
  margin: 0 auto 28px;
  font-size: 18px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 26px;
}

.hero-note {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

@property --gradient-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@keyframes gradient-rotate {
  to {
    --gradient-angle: 360deg;
  }
}

.glow-border {
  --glow-bg: #0d1219;
  --glow-1: #0b2b3d;
  --glow-2: var(--accent);
  --glow-3: var(--accent-2);
  border: 1px solid transparent;
  border-radius: var(--radius);
  background-image:
    linear-gradient(var(--glow-bg), var(--glow-bg)),
    conic-gradient(
      from var(--gradient-angle),
      var(--glow-1) 0%,
      var(--glow-2) 12%,
      var(--glow-3) 20%,
      var(--glow-2) 28%,
      var(--glow-1) 42%,
      var(--glow-1) 58%,
      var(--glow-2) 70%,
      var(--glow-3) 78%,
      var(--glow-2) 86%,
      var(--glow-1) 100%
    );
  background-clip: padding-box, border-box;
  background-origin: padding-box, border-box;
}

@media (prefers-reduced-motion: no-preference) {
  .glow-border {
    animation: gradient-rotate 6s linear infinite;
  }

  .glow-border:nth-child(2n) {
    animation-duration: 7.5s;
    animation-direction: reverse;
  }

  .glow-border:nth-child(3n) {
    animation-duration: 9s;
  }
}

.mech-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
  text-align: left;
}

.mech-list li {
  grid-column: span 6;
  padding: 24px;
}

@media (min-width: 720px) {
  .mech-list li {
    grid-column: span 3;
  }

  .mech-list li.span-2 {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .mech-list li.span-2 {
    grid-column: span 2;
  }

  .mech-list li.span-3 {
    grid-column: span 3;
  }
}

.mech-list h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.mech-list p {
  font-size: 15px;
  margin: 0;
}

.mech-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 6px;
}

.mech-stat b {
  font-size: clamp(34px, 5vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.mech-stat span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}

.mech-stat p {
  margin-top: 6px;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: 52px;
}

@media (max-width: 900px) {
  .feature {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
}

@media (min-width: 901px) {
  .feature-reverse .feature-media,
  .feature-reverse .feature-media-pair {
    order: 2;
  }
}

.feature-media img,
.feature-media picture {
  border-radius: var(--radius-lg);
}

.feature-media figure,
.feature-media > picture,
.feature-media > img {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: #000;
}

.feature-media-pair {
  display: grid;
  gap: 18px;
}

.feature-media-duo {
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 420px) {
  .feature-media-duo {
    grid-template-columns: 1fr;
  }
}

.feature-media-wide img {
  width: 100%;
}

.feature-text .section-title {
  margin-bottom: 16px;
}

.band .feature-slogan {
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.35;
  font-weight: 500;
  color: var(--text);
  border-left: 2px solid var(--accent-2);
  padding-left: 14px;
  margin-bottom: 20px;
}

.feature-soft {
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
}

@media (min-width: 901px) {

  .feature-soft.feature-xl {
    max-width: 1320px;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 40px;
  }
}

@media (min-width: 901px) {
  .feature-soft.feature-reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  }
}

@media (max-width: 900px) {
  .feature-soft {
    grid-template-columns: minmax(0, 1fr);
  }
}

.media-soft {
  position: relative;
}

@media (min-width: 1320px) {
  .media-soft {
    margin-left: -46px;
  }

  .feature-reverse .media-soft {
    margin-left: 0;
    margin-right: -46px;
  }
}

.media-soft figure,
.media-soft > picture,
.media-soft > img,
.media-soft .slides,
.media-soft .slide-dots {
  position: relative;
  z-index: 1;
}

.media-soft figure,
.media-soft > picture,
.media-soft > img,
.media-soft .slide {
  border: 0;
  background: none;
  overflow: visible;
}

.media-soft img {
  width: 100%;
  border-radius: var(--radius-lg);
  -webkit-mask-image: var(--soft-mask);
  mask-image: var(--soft-mask);
}

.media-soft .slides {
  margin-top: 0;
}

.feature-perf {
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 44px;
}

@media (max-width: 900px) {
  .feature-perf {
    grid-template-columns: minmax(0, 1fr);
  }
}

.fps-panel {
  --glow-2: var(--fps);
  padding: 38px 26px 30px;
  text-align: center;
}

.band .fps-value {
  font-size: clamp(58px, 9vw, 108px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--fps);

  text-shadow: 0 0 28px rgba(74, 222, 128, 0.35);

  font-variant-numeric: tabular-nums;
}

.band .fps-label {
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--fps);
  margin-top: 8px;
}

.band .fps-note {
  font-size: 14px;
  margin-top: 16px;
  color: var(--muted);
}

.slides {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.slide {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: #000;
}

.slides.is-live {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
}

.slides.is-live .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.slides.is-live .slide.is-active {
  opacity: 1;
}

.slides.is-live .slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
}

.slide-dot {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
}

.slide-dot[aria-current="true"] {
  background: var(--accent-2);
}

@media (prefers-reduced-motion: reduce) {
  .slides.is-live .slide {
    transition: none;
  }
}

.cta {
  padding: 96px 0 104px;
  background:
    radial-gradient(50% 60% at 50% 100%, rgba(255, 122, 28, 0.12) 0%, rgba(255, 122, 28, 0) 70%);
}

.cta-title {
  font-size: clamp(28px, 4.4vw, 46px);
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta .lead {
  margin-bottom: 28px;
}

.site-foot {
  border-top: 1px solid var(--line);
  padding: 44px 0 56px;
  font-size: 13.5px;
  color: var(--muted);
}

.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px 48px;
  align-items: start;
}

.foot-devs {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

.foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.foot-links a {
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.foot-links a:hover,
.foot-links a:focus-visible {
  color: var(--accent);
}

.foot-legal {
  grid-column: 1 / -1;
  max-width: 62em;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 12.8px;
  color: var(--dim, var(--muted));
  opacity: 0.72;
}

@media (max-width: 720px) {
  .foot-grid {
    grid-template-columns: 1fr;
  }
}

@media print {
  .site-head,
  .hero-actions,
  .slide-dots,
  .skip-link {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .band {
    padding: 16px 0;
  }
}

/* Синяя пометка возле заголовка. Нужна ровно там, где надо отделить то, что
   работает только в нашей сборке, от того, что заводится и без неё. */
.band p.pill-excl {
  display: inline-block;
  margin: -4px 0 14px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}