:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0066cc;
  --white: #ffffff;
  --soft: #f5f5f7;
  --silver: #e8ebf0;
  --nav: rgba(250, 250, 252, 0.82);
  --max: 1440px;
  --nav-height: 48px;
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--soft);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  font-size: 17px;
  line-height: 1.47059;
  letter-spacing: 0;
}

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

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

.global-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(28px, 5vw, 72px);
  padding: 0 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  background: var(--nav);
  color: rgba(0, 0, 0, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
}

.brand-mark {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 42% 34%, #ffffff 0 12%, transparent 13%),
    linear-gradient(145deg, #1d1d1f, #7d8794 56%, #bdeee6);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 42px);
  font-size: 0.76rem;
  font-weight: 400;
}

.nav-links a {
  color: rgba(0, 0, 0, 0.72);
}

.nav-links a:hover {
  color: #000000;
}

.panel {
  width: min(var(--max), 100%);
  margin: 0 auto 12px;
  overflow: hidden;
}

.panel-light {
  background: linear-gradient(180deg, #fbfbfd 0%, #f5f5f7 100%);
}

.panel-white {
  background: var(--white);
}

.panel-dark {
  background:
    radial-gradient(circle at 50% 120%, rgba(116, 185, 255, 0.36), transparent 46%),
    linear-gradient(180deg, #101113 0%, #000000 100%);
  color: #f5f5f7;
}

.hero {
  min-height: calc(100svh - var(--nav-height));
  display: grid;
  grid-template-rows: auto minmax(300px, 1fr);
  align-items: end;
  padding: clamp(48px, 8vh, 92px) 24px 0;
  text-align: center;
}

.hero-copy {
  width: min(880px, 100%);
  margin: 0 auto;
  min-width: 0;
}

.kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.28rem);
  font-weight: 600;
  letter-spacing: 0;
}

.panel-dark .kicker {
  color: rgba(245, 245, 247, 0.7);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(3.6rem, 8vw, 7.8rem);
  line-height: 0.96;
  font-weight: 700;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  font-size: clamp(2.8rem, 6vw, 6.4rem);
  line-height: 0.98;
  font-weight: 700;
  letter-spacing: 0;
}

.hero-subtitle,
.statement-panel p,
.panel-copy p,
.mini-panel p,
.closing-panel p {
  color: var(--muted);
  font-size: clamp(1.22rem, 2.1vw, 1.76rem);
  line-height: 1.24;
  font-weight: 500;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 760px;
  margin: 18px auto 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  margin-top: 18px;
  color: var(--blue);
  font-size: clamp(1.04rem, 1.5vw, 1.3rem);
  font-weight: 500;
}

.actions a::after {
  content: " >";
}

.hero-visual {
  width: min(1120px, 100%);
  margin: clamp(20px, 4vh, 42px) auto 0;
  align-self: end;
  display: flex;
  justify-content: center;
  overflow: hidden;
  min-width: 0;
}

.hero-visual img {
  width: min(1120px, 100%);
  max-width: none;
  margin: 0 auto;
  filter: saturate(1.02) contrast(1.01);
}

.statement-panel {
  min-height: min(760px, calc(100svh - 60px));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(72px, 12vw, 150px) 24px;
  text-align: center;
}

.statement-panel h2 {
  width: min(1050px, 100%);
}

.statement-panel p:last-child {
  width: min(770px, 100%);
  margin-top: 24px;
  color: rgba(245, 245, 247, 0.72);
}

.product-panel {
  min-height: 860px;
  display: grid;
  grid-template-rows: auto 1fr;
  padding: clamp(64px, 8vw, 108px) 24px 0;
  text-align: center;
}

.panel-copy {
  width: min(900px, 100%);
  margin: 0 auto;
}

.panel-copy p {
  width: min(760px, 100%);
  margin: 16px auto 0;
}

.principle-stage {
  position: relative;
  width: min(1120px, 100%);
  min-height: 430px;
  margin: clamp(44px, 7vw, 78px) auto 0;
}

.principle-stage::before {
  content: "";
  position: absolute;
  inset: 18% 4% auto;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0, 102, 204, 0.13), transparent 68%);
  filter: blur(4px);
}

.principle-stage article {
  position: absolute;
  width: clamp(210px, 27vw, 330px);
  min-height: 260px;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 34px;
  padding: 28px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(234, 238, 244, 0.7)),
    rgba(255, 255, 255, 0.72);
  box-shadow: 0 36px 90px rgba(24, 35, 52, 0.16);
  text-align: left;
  backdrop-filter: blur(18px);
}

.principle-stage article:nth-child(1) {
  left: 4%;
  top: 32px;
  transform: rotate(-4deg);
}

.principle-stage article:nth-child(2) {
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  z-index: 2;
}

.principle-stage article:nth-child(3) {
  right: 4%;
  top: 70px;
  transform: rotate(4deg);
}

.principle-stage span {
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 700;
}

.principle-stage strong {
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 1;
}

.principle-stage p {
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.25;
  font-weight: 500;
}

.grid-panels {
  width: min(var(--max), 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 auto 12px;
}

.mini-panel {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  padding: clamp(52px, 7vw, 86px) clamp(24px, 5vw, 64px);
  text-align: center;
}

.mini-panel h2 {
  font-size: clamp(2.7rem, 4.8vw, 5.1rem);
}

.mini-panel p:not(.kicker) {
  width: min(560px, 100%);
  margin: 16px auto 0;
}

.panel-blue {
  background:
    radial-gradient(circle at 50% 78%, rgba(191, 227, 255, 0.92), transparent 40%),
    linear-gradient(180deg, #f9fbff, #e9f3ff);
}

.panel-silver {
  background:
    radial-gradient(circle at 50% 80%, rgba(255, 255, 255, 0.95), transparent 42%),
    linear-gradient(180deg, #f7f7f9, #e5e7ec);
}

.device-card {
  position: absolute;
  left: 50%;
  bottom: -32px;
  width: min(430px, 72%);
  height: 360px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 48px 48px 0 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.32)),
    linear-gradient(135deg, rgba(0, 102, 204, 0.18), rgba(125, 238, 210, 0.2));
  box-shadow: 0 44px 100px rgba(44, 94, 145, 0.26);
  transform: translateX(-50%);
  backdrop-filter: blur(24px);
}

.device-card span {
  position: absolute;
  left: 44px;
  right: 44px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.device-card span:nth-child(1) {
  top: 80px;
  width: 42%;
}

.device-card span:nth-child(2) {
  top: 132px;
}

.device-card span:nth-child(3) {
  top: 184px;
  width: 68%;
}

.loop-visual {
  position: absolute;
  left: 50%;
  bottom: 52px;
  width: min(340px, 68%);
  aspect-ratio: 1;
  transform: translateX(-50%);
}

.loop-visual span {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(29, 29, 31, 0.08);
  border-radius: 50%;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(218, 222, 231, 0.55));
  box-shadow: 0 34px 86px rgba(29, 29, 31, 0.14);
}

.loop-visual span:nth-child(2) {
  inset: 25%;
}

.loop-visual span:nth-child(3) {
  inset: 39%;
  background: linear-gradient(145deg, #1d1d1f, #6f7783);
}

.closing-panel {
  min-height: 760px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: clamp(78px, 12vw, 150px) 24px;
  text-align: center;
}

.closing-panel h2 {
  width: min(980px, 100%);
}

.closing-panel p {
  width: min(760px, 100%);
  margin-top: 24px;
}

.footer {
  width: min(var(--max), 100%);
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin: 0 auto;
  color: #86868b;
  font-size: 0.82rem;
}

.footer a {
  color: #515154;
}

@media (max-width: 1068px) {
  .global-nav {
    justify-content: space-between;
  }

  .hero {
    min-height: 820px;
  }

  h1 {
    font-size: clamp(3.5rem, 10vw, 6.4rem);
  }

  h2 {
    font-size: clamp(2.7rem, 8vw, 5.4rem);
  }

  .product-panel {
    min-height: 780px;
  }

  .principle-stage {
    min-height: 590px;
  }

  .principle-stage article:nth-child(1) {
    left: 3%;
    top: 0;
  }

  .principle-stage article:nth-child(2) {
    top: 160px;
  }

  .principle-stage article:nth-child(3) {
    right: 3%;
    top: 310px;
  }

  .grid-panels {
    grid-template-columns: 1fr;
  }

  .mini-panel {
    min-height: 680px;
  }
}

@media (max-width: 734px) {
  :root {
    --nav-height: 52px;
  }

  body {
    font-size: 16px;
  }

  .global-nav {
    padding: 0 16px;
  }

  .nav-links {
    gap: 18px;
  }

  .nav-links a:nth-child(1),
  .nav-links a:nth-child(2) {
    display: none;
  }

  .hero {
    min-height: 720px;
    padding: 52px 18px 0;
  }

  .hero-copy {
    max-width: 360px;
  }

  h1 {
    font-size: clamp(3.05rem, 15vw, 4.8rem);
  }

  h2 {
    font-size: clamp(2.65rem, 12vw, 4.2rem);
  }

  .hero-subtitle,
  .statement-panel p,
  .panel-copy p,
  .mini-panel p,
  .closing-panel p {
    font-size: 1.24rem;
  }

  .actions {
    gap: 22px;
    font-size: 1.08rem;
  }

  .hero-visual {
    width: calc(100% + 36px);
    max-width: none;
    height: 310px;
    margin-right: -18px;
    margin-left: -18px;
    margin-top: 24px;
  }

  .hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
  }

  .statement-panel,
  .closing-panel {
    min-height: 650px;
    padding-inline: 18px;
  }

  .product-panel {
    min-height: 800px;
    padding: 58px 18px 0;
  }

  .principle-stage {
    min-height: 560px;
    margin-top: 42px;
  }

  .principle-stage::before {
    inset: 12% -10% auto;
  }

  .principle-stage article {
    width: min(310px, 88vw);
    min-height: 185px;
    padding: 22px;
    border-radius: 28px;
  }

  .principle-stage article:nth-child(1),
  .principle-stage article:nth-child(2),
  .principle-stage article:nth-child(3) {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  .principle-stage article:nth-child(1) {
    top: 0;
  }

  .principle-stage article:nth-child(2) {
    top: 172px;
  }

  .principle-stage article:nth-child(3) {
    top: 344px;
  }

  .principle-stage strong {
    font-size: 2.45rem;
  }

  .principle-stage p {
    font-size: 1rem;
  }

  .mini-panel {
    min-height: 640px;
    padding: 54px 18px;
  }

  .device-card {
    width: min(360px, 84%);
    height: 320px;
  }

  .loop-visual {
    width: min(320px, 82%);
    bottom: 72px;
  }
}

@media (max-width: 390px) {
  .brand {
    font-size: 0.8rem;
  }

  .nav-links {
    gap: 14px;
    font-size: 0.72rem;
  }

  .hero {
    min-height: 690px;
  }

  .actions {
    gap: 16px;
  }
}