:root {
  --pad-x: clamp(1.25rem, 4.5vw, 5rem);
  --pad-y: clamp(1rem, 3vh, 4rem);
  --header-pt: clamp(1.25rem, 2.5vh, 2.5rem);
  --gap-nav: clamp(1rem, 2.2vw, 2.25rem);
  --logo: clamp(1.35rem, 1.2vw + 0.9rem, 2.1rem);
  --logo-deg: clamp(0.65rem, 0.4vw + 0.45rem, 0.9rem);
  --nav: clamp(0.65rem, 0.35vw + 0.5rem, 0.875rem);
  --headline: clamp(2.7rem, 4.725vw + 0.85rem, 5.94rem);
  --body: clamp(0.7rem, 0.35vw + 0.55rem, 0.9rem);
  --micro: clamp(0.55rem, 0.25vw + 0.45rem, 0.7rem);
  --btn-px: clamp(1.15rem, 1.4vw, 1.75rem);
  --btn-py: clamp(0.6rem, 0.9vh, 0.85rem);
  --btn-gap: clamp(0.75rem, 1vw, 1.1rem);
  --feature-pad: clamp(1rem, 1.5vw, 1.75rem);
  --feature-min: clamp(18rem, 23vw, 25rem);
  --globe: clamp(2.25rem, 2.5vw + 1rem, 3.25rem);
  --checker-w: clamp(2.75rem, 4.5vw, 6.5rem);
  --checker-h: clamp(1.35rem, 2.2vw, 3rem);
  --corner: clamp(0.65rem, 0.4vw + 0.4rem, 0.95rem);
  --icon: clamp(1rem, 0.6vw + 0.7rem, 1.35rem);
  --drawer-pad: clamp(1.25rem, 2.5vw, 2.25rem);
  --drawer-max: clamp(18rem, 28vw, 28rem);
  --section-gap: clamp(0.75rem, 1.5vh, 1.5rem);
  --main-py: clamp(1.25rem, 4vh, 4rem);
  --black: #000;
  --white: #fff;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --font-display: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
  color-scheme: light;
  font-family: var(--font-body);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--black);
  background: var(--white);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--white);
  background: var(--black);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

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

svg {
  display: block;
}

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

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.55rem 0.8rem;
  color: var(--white);
  background: var(--black);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.image-reveal-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-layer {
  position: absolute;
  inset: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.bg-base {
  background-image: url("https://images.higgs.ai/?default=1&output=webp&url=https%3A%2F%2Fd8j0ntlcm91z4.cloudfront.net%2Fuser_38xzZboKViGWJOttwIXH07lWA1P%2Fhf_20260802_074534_f0d9d476-3f86-4c67-9b12-dfc63d99da41.png&w=1920&q=85");
}

.bg-reveal {
  background-image: url("https://images.higgs.ai/?default=1&output=webp&url=https%3A%2F%2Fd8j0ntlcm91z4.cloudfront.net%2Fuser_38xzZboKViGWJOttwIXH07lWA1P%2Fhf_20260802_075145_1b557479-775b-43af-8270-f45d79d97d5a.png&w=1920&q=85");
  -webkit-mask-image: var(--reveal-mask, none);
  mask-image: var(--reveal-mask, none);
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
}

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--pad-x);
  padding-top: var(--header-pt);
  padding-bottom: var(--section-gap);
}

.brand {
  color: var(--black);
  font-family: var(--font-display);
  font-size: var(--logo);
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1;
  transition: opacity 180ms ease;
}

.brand:hover {
  opacity: 0.8;
}

.brand span {
  position: relative;
  top: -0.16em;
  margin-left: 0.1em;
  font-family: var(--font-body);
  font-size: var(--logo-deg);
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--gap-nav);
  margin-left: auto;
  color: var(--black);
  font-size: var(--nav);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.main-nav > button {
  transition: opacity 180ms ease;
}

.main-nav > button:hover {
  opacity: 0.5;
}

.nav-divider {
  color: var(--gray-400);
}

.page-shell {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 100svh;
  flex-direction: column;
  justify-content: space-between;
  padding-inline: var(--pad-x);
  padding-block: var(--main-py);
}

.hero {
  display: flex;
  min-height: calc(100svh - var(--main-py) * 2);
  align-items: center;
}

.hero-layout {
  display: flex;
  width: 100%;
  align-items: flex-end;
  justify-content: space-between;
  gap: 4rem;
}

.hero-copy {
  position: relative;
  padding: clamp(2rem, 5vh, 5rem) 0;
}

.corner {
  position: absolute;
  width: var(--corner);
  height: var(--corner);
  fill: none;
  stroke: var(--black);
  stroke-width: 1.5;
}

.corner-tl {
  top: 0;
  left: 0;
}

.corner-tr {
  top: 0;
  right: 0;
}

.corner-bl {
  bottom: 0;
  left: 0;
}

.corner-br {
  right: 0;
  bottom: 0;
}

.hero-copy h1 {
  display: flex;
  align-items: baseline;
  gap: clamp(0.35rem, 0.8vw, 0.9rem);
  white-space: nowrap;
  margin: 0;
  color: var(--black);
  font-family: var(--font-display);
  font-size: var(--headline);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1;
}

.hero-copy h1 > span {
  display: inline;
}

.checkerboard {
  width: var(--checker-w);
  height: var(--checker-h);
  flex: none;
  fill: var(--black);
  transform: translateY(0.08em);
}

.shop-now {
  display: inline-flex;
  align-items: center;
  gap: var(--btn-gap);
  margin-top: 2.25rem;
  padding: var(--btn-py) var(--btn-px);
  color: var(--black);
  border: 1px solid var(--gray-400);
  border-radius: 0;
  font-size: var(--body);
  font-weight: 600;
  letter-spacing: 0.08em;
  transition:
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.shop-now svg {
  width: var(--icon);
  height: var(--icon);
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
  transition: transform 180ms ease;
}

.shop-now:hover,
.shop-now:focus-visible {
  color: var(--white);
  background: var(--black);
  border-color: var(--black);
}

.shop-now:hover svg,
.shop-now:focus-visible svg {
  transform: translate(2px, -2px);
}

.feature-box {
  position: relative;
  display: flex;
  min-width: var(--feature-min);
  align-items: center;
  gap: clamp(1rem, 1.4vw, 1.5rem);
  align-self: flex-end;
  padding: var(--feature-pad);
  background: rgba(255, 255, 255, 0.18);
}

.wire-globe {
  width: var(--globe);
  height: var(--globe);
  flex: none;
  fill: none;
  stroke: var(--black);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
}

.feature-copy {
  min-width: 0;
  flex: 1;
  font-size: var(--body);
  font-weight: 600;
  line-height: 1.3;
}

.feature-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.55rem;
  color: var(--gray-500);
  font-size: var(--micro);
  font-weight: 700;
  letter-spacing: 0.04em;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.feature-heading span:last-child {
  white-space: nowrap;
  font-weight: 500;
}

.feature-list {
  display: grid;
}

.feature-row {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.58rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

.feature-row strong {
  min-width: 0;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.feature-index {
  color: var(--gray-500);
  font-size: var(--micro);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.feature-copy p {
  margin: 0.7rem 0 0;
  color: var(--gray-500);
  font-size: var(--micro);
  font-weight: 500;
  letter-spacing: 0;
}

.mobile-image {
  display: none;
}

.drawer-backdrop[hidden] {
  display: none;
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 80;
  display: flex;
  width: min(100%, var(--drawer-max));
  height: 100svh;
  flex-direction: column;
  padding: var(--drawer-pad);
  overflow-y: auto;
  background: var(--white);
  border-left: 1px solid var(--gray-300);
  box-shadow: -1rem 0 3rem rgba(0, 0, 0, 0.08);
  transform: translateX(105%);
  transition: transform 260ms ease;
}

.drawer.is-open {
  transform: translateX(0);
}

.drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
}

.drawer-kicker {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--gray-500);
  font-size: var(--micro);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.drawer h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.8vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.drawer-close {
  color: var(--gray-600);
  font-size: 1.8rem;
  line-height: 1;
}

.drawer-close:hover {
  color: var(--black);
}

.drawer-body {
  flex: 1;
  padding-block: 1.5rem;
}

.drawer-subtitle {
  margin: 0 0 1.4rem;
  color: var(--gray-500);
  font-size: var(--body);
}

.drawer-item {
  padding-block: 1rem;
  border-top: 1px solid var(--gray-200);
}

.drawer-item:last-child {
  border-bottom: 1px solid var(--gray-200);
}

.drawer-item-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--gray-500);
  font-size: var(--micro);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: none;
}

.drawer-item h3 {
  margin: 0.55rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
}

.drawer-item p {
  margin: 0;
  color: var(--gray-600);
  font-size: var(--body);
}

.drawer-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--btn-gap);
  min-height: 0;
  padding: var(--btn-py) var(--btn-px);
  color: var(--black);
  background: transparent;
  border: 1px solid var(--gray-400);
  border-radius: 0;
  font-size: var(--body);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  white-space: nowrap;
  transition:
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.drawer-action svg {
  width: var(--icon);
  height: var(--icon);
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
  transition: transform 180ms ease;
}

.drawer-action:hover,
.drawer-action:focus-visible {
  color: var(--white);
  background: var(--black);
  border-color: var(--black);
}

.drawer-action:hover svg,
.drawer-action:focus-visible svg {
  transform: translate(2px, -2px);
}

.drawer-footer {
  padding-top: 1.25rem;
  border-top: 1px solid var(--gray-200);
}

.drawer-footer-note {
  color: var(--gray-500);
  font-size: var(--micro);
  text-align: center;
}

.drawer-item-note {
  display: block;
  margin-top: 0.9rem;
  color: var(--gray-500);
  font-size: var(--micro);
  line-height: 1.6;
}

.toast {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  max-width: min(25rem, calc(100% - 2rem));
  padding: 0.75rem 1rem;
  color: var(--white);
  background: var(--black);
  font-size: var(--body);
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.5rem);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1023px) {
  .image-reveal-background {
    display: none;
  }

  .page-shell {
    min-height: auto;
    padding-top: 6rem;
  }

  .hero {
    min-height: auto;
    display: block;
  }

  .hero-layout {
    align-items: stretch;
    flex-direction: column;
    gap: 3rem;
  }

  .hero-copy {
    padding-block: 2rem;
  }

  .feature-box {
    align-self: flex-start;
  }

  .mobile-image {
    display: block;
    margin-top: 2rem;
  }

  .mobile-image-frame {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background:
      linear-gradient(rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.04)),
      url("https://images.higgs.ai/?default=1&output=webp&url=https%3A%2F%2Fd8j0ntlcm91z4.cloudfront.net%2Fuser_38xzZboKViGWJOttwIXH07lWA1P%2Fhf_20260802_074534_f0d9d476-3f86-4c67-9b12-dfc63d99da41.png&w=1920&q=85")
        center / cover no-repeat;
    border: 1px solid var(--gray-200);
  }

  .mobile-image-frame span {
    position: absolute;
    right: 0.75rem;
    bottom: 0.7rem;
    color: var(--white);
    font-size: var(--micro);
    font-weight: 700;
    letter-spacing: 0.14em;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
  }

  .main-nav {
    gap: 0.75rem;
    font-size: 0.58rem;
  }

  .main-nav > button:not(.account-trigger),
  .nav-divider {
    display: none;
  }

  .hero-copy h1 {
    flex-wrap: wrap;
    max-width: 100%;
    white-space: normal;
    font-size: clamp(2.2rem, 11vw, 4rem);
    letter-spacing: -0.06em;
  }

  .hero-copy h1 > span {
    white-space: normal;
  }

  .feature-box {
    width: 100%;
  }

  .mobile-image-frame {
    aspect-ratio: 16 / 9;
  }

  .drawer {
    width: 100%;
  }

  .toast {
    top: auto;
    right: 1rem;
    bottom: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}