:root {
  --header-height: 74px;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, .78);
  --line: rgba(255, 255, 255, .28);
  --surface: rgba(10, 13, 18, .34);
  --surface-strong: rgba(10, 13, 18, .68);
  --accent: #8bd8ff;
  --focus: #f8d66d;
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #0b0f16;
  overscroll-behavior: none;
}

body {
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: #0b0f16;
  letter-spacing: 0;
}

body[data-theme="light"] {
  --surface: rgba(255, 255, 255, .18);
  --surface-strong: rgba(18, 22, 28, .58);
  --accent: #9fe7ff;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  border-radius: 0;
  padding: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}

img,
svg {
  display: block;
}

.loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: #080b11;
  transition: opacity .45s ease, visibility .45s ease;
}

.loader-overlay.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.loader-logo {
  width: clamp(72px, 12vw, 122px);
  height: auto;
  position: relative;
  z-index: 1;
}

.loader-ring {
  position: absolute;
  width: clamp(136px, 22vw, 208px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .22);
  border-top-color: rgba(159, 231, 255, .92);
  border-radius: 50%;
  animation: spin 1.15s linear infinite;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 14px clamp(18px, 4.5vw, 64px);
  color: #fff;
  background: linear-gradient(180deg, rgba(4, 6, 10, .42), rgba(4, 6, 10, 0));
}

.site-logo {
  display: inline-flex;
  align-items: center;
  min-width: 86px;
}

.site-logo img {
  width: 50px;
  height: auto;
  object-fit: contain;
}

.site-logo .logo-dark {
  display: none;
}

.site-nav {
  position: absolute;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px;
  background: rgba(8, 12, 18, .34);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .18);
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 15px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  opacity: .82;
  transition: opacity .2s ease, background .2s ease, color .2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  display: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  opacity: 1;
  background: rgba(255, 255, 255, .16);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle,
.menu-toggle,
.slider-arrow {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  backdrop-filter: blur(16px);
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.theme-toggle:hover,
.menu-toggle:hover,
.slider-arrow:hover {
  border-color: rgba(255, 255, 255, .68);
  background: rgba(255, 255, 255, .24);
  transform: translateY(-1px);
}

.theme-toggle__icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
}

.theme-toggle__icon svg {
  grid-area: 1 / 1;
  width: 20px;
  height: 20px;
  transition: opacity .2s ease, transform .2s ease;
}

.theme-toggle__sun {
  opacity: 0;
  transform: rotate(-45deg) scale(.65);
}

.theme-toggle__moon {
  opacity: 1;
  transform: rotate(0) scale(1);
}

body[data-theme="dark"] .theme-toggle__sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

body[data-theme="dark"] .theme-toggle__moon {
  opacity: 0;
  transform: rotate(45deg) scale(.65);
}

.menu-toggle {
  display: none;
}

.menu-toggle span {
  width: 17px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: opacity .2s ease, transform .2s ease;
}

body.menu-open .menu-toggle span:first-child {
  transform: translateY(6px) rotate(45deg);
}

body.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
  transform: scaleX(.35);
}

body.menu-open .menu-toggle span:last-child {
  transform: translateY(-6px) rotate(-45deg);
}

.hero,
.slider {
  position: relative;
  min-height: calc(var(--vh, 1vh) * 100);
  overflow: hidden;
}

.slider {
  isolation: isolate;
  background: #0b0f16;
}

.slide {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: center;
  padding: calc(var(--header-height) + 48px) clamp(24px, 8vw, 128px) 116px;
  clip-path: inset(0 0 0 0);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 36px, 0) scale(.985);
  transition: opacity .78s ease, transform .78s cubic-bezier(.22, 1, .36, 1), clip-path .88s cubic-bezier(.22, 1, .36, 1);
}

.slide.is-active {
  z-index: 2;
  clip-path: inset(0 0 0 0);
  opacity: 1;
  pointer-events: auto;
  transform: translate3d(0, 0, 0) scale(1);
}

.slide.is-leaving {
  z-index: 1;
  opacity: 1;
  pointer-events: none;
}

.slider[data-direction="next"] .slide:not(.is-active):not(.is-leaving) {
  transform: translate3d(0, 44px, 0) scale(.985);
}

.slider[data-direction="prev"] .slide:not(.is-active):not(.is-leaving) {
  transform: translate3d(0, -44px, 0) scale(.985);
}

.slider[data-direction="next"] .slide.is-leaving {
  clip-path: inset(0 0 100% 0);
  transform: translate3d(0, -28px, 0) scale(1.025);
}

.slider[data-direction="prev"] .slide.is-leaving {
  clip-path: inset(100% 0 0 0);
  transform: translate3d(0, 28px, 0) scale(1.025);
}

.slide::before,
.slide::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}

.slide::before {
  background: linear-gradient(90deg, rgba(0, 0, 0, .76), rgba(0, 0, 0, .38) 46%, rgba(0, 0, 0, .2));
}

body[data-theme="light"] .slide::before {
  background: linear-gradient(90deg, rgba(0, 0, 0, .62), rgba(0, 0, 0, .3) 48%, rgba(0, 0, 0, .14));
}

.slide::after {
  background: radial-gradient(circle at 26% 58%, rgba(139, 216, 255, .22), transparent 28%), linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, .08) 42%, transparent 58%);
  mix-blend-mode: screen;
  opacity: .55;
  transform: translateX(-8%);
  transition: opacity .8s ease, transform 1.1s cubic-bezier(.22, 1, .36, 1);
}

.slide img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
  transform: scale(1.1) translate3d(0, 0, 0);
  transition: filter .9s ease, transform 1.25s cubic-bezier(.22, 1, .36, 1);
}

.slide.is-active img {
  filter: saturate(1.05) contrast(1.08);
  transform: scale(1.02) translate3d(0, 0, 0);
}

.slider[data-direction="next"] .slide.is-active img {
  transform: scale(1.02) translate3d(0, -1.5%, 0);
}

.slider[data-direction="prev"] .slide.is-active img {
  transform: scale(1.02) translate3d(0, 1.5%, 0);
}

.slide.is-active::after {
  opacity: .82;
  transform: translateX(0);
}

.slide__content {
  width: min(760px, 100%);
  transform: translate3d(0, 34px, 0);
  opacity: 0;
  transition: transform .78s cubic-bezier(.22, 1, .36, 1) .12s, opacity .68s ease .12s;
}

.slide.is-active .slide__content {
  transform: translate3d(0, 0, 0);
  opacity: 1;
}

.slider[data-direction="prev"] .slide__content {
  transform: translate3d(0, -34px, 0);
}

.slider[data-direction="prev"] .slide.is-active .slide__content {
  transform: translate3d(0, 0, 0);
}

.slide__eyebrow,
.slide h1,
.slide__desc,
.circle-link {
  transition: opacity .68s ease, transform .78s cubic-bezier(.22, 1, .36, 1);
}

.slide:not(.is-active) .slide__eyebrow,
.slide:not(.is-active) h1,
.slide:not(.is-active) .slide__desc,
.slide:not(.is-active) .circle-link {
  opacity: 0;
  transform: translateY(22px);
}

.slide.is-active .slide__eyebrow {
  transition-delay: .12s;
}

.slide.is-active h1 {
  transition-delay: .18s;
}

.slide.is-active .slide__desc {
  transition-delay: .26s;
}

.slide.is-active .circle-link {
  transition-delay: .34s;
}

.slide__eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: clamp(14px, 1.4vw, 18px);
  font-weight: 700;
  text-transform: uppercase;
}

.slide h1 {
  margin: 0;
  font-size: clamp(58px, 11vw, 152px);
  font-weight: 800;
  line-height: .9;
  letter-spacing: 0;
  text-transform: uppercase;
}

.slide__desc {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 1.45vw, 19px);
  line-height: 1.9;
  text-wrap: pretty;
}

.circle-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 38px;
  font-size: 15px;
  font-weight: 700;
}

.circle-link__icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, .66);
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  transition: background .2s ease, transform .2s ease;
}

.circle-link svg {
  width: 18px;
  fill: currentColor;
}

.circle-link:hover .circle-link__icon {
  background: rgba(255, 255, 255, .22);
  transform: translateX(3px);
}

.slider-controls {
  position: fixed;
  right: clamp(22px, 5vw, 76px);
  bottom: clamp(88px, 12vh, 132px);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.slider-arrow svg {
  width: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.slider-status {
  position: fixed;
  left: 50%;
  bottom: 86px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 240px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
  font-weight: 700;
}

.slider-dots {
  display: grid;
  grid-template-columns: repeat(4, 34px);
  gap: 8px;
}

.slider-dots button {
  width: 34px;
  height: 2px;
  background: rgba(255, 255, 255, .32);
  transform-origin: left center;
  transition: background .25s ease, transform .35s ease, width .35s ease;
}

.slider-dots button[aria-current="true"] {
  background: #fff;
  transform: scaleX(1.35) scaleY(2);
}

.site-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 54px;
  padding: 12px 20px;
  color: rgba(255, 255, 255, .86);
  font-size: 13px;
  text-align: center;
  background: linear-gradient(0deg, rgba(0, 0, 0, .5), rgba(0, 0, 0, 0));
}

.site-footer a:hover {
  color: #fff;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .site-header {
    padding: 12px 18px;
  }

  .site-logo {
    min-width: 74px;
  }

  .site-logo img {
    width: 50px;
  }

  .menu-toggle {
    display: inline-grid;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-height) 18px auto;
    left: auto;
    display: grid;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 12px;
    background: rgba(9, 13, 19, .94);
    box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(18px);
    transition: opacity .2s ease, transform .2s ease;
  }

  body.menu-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 16px 18px;
  }

  .site-nav a::after {
    display: none;
  }

  .slide {
    padding: calc(var(--header-height) + 36px) 24px 128px;
    align-items: end;
  }

  .slide__desc {
    line-height: 1.72;
  }

  .slide__desc br {
    display: none;
  }

  .slider-controls {
    right: 22px;
    bottom: 78px;
  }

  .slider-status {
    left: 24px;
    bottom: 78px;
    min-width: auto;
    transform: none;
  }

  .slider-dots {
    grid-template-columns: repeat(4, 22px);
  }

  .slider-dots button {
    width: 22px;
  }

  .site-footer {
    justify-content: flex-start;
    gap: 8px;
    overflow: hidden;
    font-size: 12px;
    white-space: nowrap;
  }
}

@media (max-width: 560px) {
  .theme-toggle,
  .menu-toggle,
  .slider-arrow {
    width: 38px;
    height: 38px;
  }

  .slide h1 {
    font-size: clamp(48px, 18vw, 86px);
  }

  .circle-link {
    margin-top: 28px;
  }

  .circle-link__icon {
    width: 52px;
    height: 52px;
  }

  .slider-controls {
    display: none;
  }

  .site-footer {
    flex-wrap: wrap;
    white-space: normal;
    line-height: 1.45;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

.error-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #080b11, #17202d 58%, #0b0f16);
}

.error-view {
  min-height: 100vh;
  display: grid;
  place-content: center;
  gap: 20px;
  padding: 32px;
  text-align: center;
}

.error-view p {
  margin: 0;
  color: var(--accent);
  font-size: 18px;
  font-weight: 800;
}

.error-view h1 {
  margin: 0;
  font-size: clamp(44px, 8vw, 92px);
  line-height: 1;
}