:root {
  --ink: #f1fcff;
  --ink-soft: #ddf1fb;
  --muted: #b6d5e4;
  --space: #0b2433;
  --space-deep: #103248;
  --panel: rgba(18, 50, 70, 0.78);
  --panel-soft: rgba(24, 64, 86, 0.62);
  --cyan: #1ff3ff;
  --cyan-strong: #5ef7ff;
  --cyan-soft: #cfffff;
  --blue: #1f79ff;
  --line: rgba(123, 242, 255, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(31, 243, 255, 0.2) 0, transparent 19rem),
    radial-gradient(circle at 82% 8%, rgba(77, 154, 255, 0.22) 0, transparent 26rem),
    radial-gradient(circle at 50% 100%, rgba(31, 243, 255, 0.12) 0, transparent 30rem),
    linear-gradient(180deg, #0d2c3f 0%, #0b2433 44%, #12384d 100%);
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 9;
  background: #fff;
  color: #000;
  padding: 0.7rem;
}

header {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: auto;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.1em;
  font-size: 1.05rem;
}

.brand span {
  color: var(--cyan);
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.88rem;
  color: #c7e5f2;
}

nav a {
  transition: color 160ms ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--cyan-soft);
}

.nav-cta,
.button {
  background: linear-gradient(135deg, var(--cyan) 0%, #8afcff 100%);
  color: #02121d;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 800;
  box-shadow: 0 10px 32px rgba(31, 243, 255, 0.24);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.nav-cta:hover,
.button:hover,
.nav-cta:focus-visible,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 16px 38px rgba(31, 243, 255, 0.3);
}

.menu {
  display: none;
}

.hero,
.flow,
.privacy,
.parents,
.tech,
.faq,
.closing,
.intro {
  max-width: 1184px;
  margin: auto;
  padding: 96px 28px;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  min-height: 650px;
  align-items: center;
  gap: 32px;
}

.signal {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--cyan-strong);
  font-weight: 800;
}

.hero h1 {
  font-size: clamp(2.55rem, 5vw, 4.45rem);
  letter-spacing: 0;
  line-height: 1.04;
  margin: 18px 0 24px;
  max-width: 12ch;
}

.hero em {
  font-style: normal;
  color: var(--cyan-strong);
}

.lead {
  max-width: 560px;
  font-size: 1.14rem;
  color: var(--ink-soft);
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 10px;
}

.hero-chips span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(127, 245, 255, 0.38);
  background: rgba(12, 35, 53, 0.72);
  color: var(--cyan-soft);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  font-size: 0.9rem;
}

.actions {
  display: flex;
  gap: 24px;
  align-items: center;
  margin: 30px 0 18px;
}

.button b {
  font-size: 1.25rem;
  margin-left: 8px;
}

.text-link {
  color: var(--cyan-soft);
  text-decoration: underline;
  text-decoration-color: rgba(31, 243, 255, 0.55);
  text-underline-offset: 6px;
}

.note,
.fine {
  font-size: 0.83rem;
  color: var(--muted);
}

.mascot-stage {
  position: relative;
  min-height: 490px;
  display: grid;
  place-items: center;
  isolation: isolate;
}

.mascot-stage::before {
  content: "";
  position: absolute;
  inset: 8% 6%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 45%, rgba(31, 243, 255, 0.22) 0, rgba(31, 243, 255, 0.08) 34%, transparent 62%);
  border: 0;
  box-shadow: none;
  z-index: 0;
}

.mascot-stage::after {
  content: "";
  position: absolute;
  width: min(72%, 360px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 243, 255, 0.32) 0, rgba(31, 243, 255, 0.12) 34%, rgba(31, 243, 255, 0) 70%);
  filter: blur(16px);
  z-index: 0;
  transform: translateY(16px);
}

.mascot-stage img {
  width: min(100%, 485px);
  position: relative;
  z-index: 2;
  filter:
    drop-shadow(0 18px 44px rgba(0, 0, 0, 0.22))
    drop-shadow(0 0 28px rgba(47, 212, 255, 0.16));
  animation: float 6s ease-in-out infinite;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(111, 242, 255, 0.3);
  border-radius: 50%;
  width: 420px;
  height: 220px;
  transform: rotate(-25deg);
  z-index: 1;
  box-shadow: 0 0 22px rgba(31, 243, 255, 0.08);
}

.o2 {
  width: 320px;
  height: 400px;
  transform: rotate(32deg);
}

.glow-dot {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, var(--cyan-soft) 0, var(--cyan) 38%, rgba(31, 243, 255, 0) 75%);
  filter: blur(4px);
  z-index: 1;
  opacity: 0.9;
}

.g1 {
  width: 84px;
  height: 84px;
  top: 18%;
  right: 14%;
}

.g2 {
  width: 54px;
  height: 54px;
  bottom: 20%;
  left: 17%;
}

@keyframes float {
  50% {
    transform: translateY(-14px);
  }
}

.intro {
  padding-top: 56px;
  padding-bottom: 136px;
  border-top: 1px solid var(--line);
}

.intro p {
  color: var(--cyan-strong);
  font-size: 1.35rem;
}

.intro h2,
.flow h2,
.privacy h2,
.parents h2,
.tech h2,
.faq h2,
.closing h2 {
  font-size: clamp(1.85rem, 3.2vw, 3.15rem);
  letter-spacing: 0;
  line-height: 1.12;
  margin: 0.2em 0;
}

.intro h2 {
  max-width: 920px;
}

.flow {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 80px;
  background:
    linear-gradient(180deg, rgba(19, 55, 76, 0.78), rgba(15, 45, 63, 0.64)),
    radial-gradient(circle at 80% 10%, rgba(31, 243, 255, 0.08), transparent 24rem);
  border-radius: 28px;
}

.flow p,
.privacy p,
.tech p {
  color: #c5dbeb;
}

.flow ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.flow li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 14px 18px;
  padding: 20px 22px;
  border: 1px solid rgba(124, 241, 255, 0.16);
  border-radius: 22px;
  background: rgba(17, 50, 69, 0.72);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.15);
}

.flow span {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 18px;
  background: rgba(31, 243, 255, 0.14);
  color: var(--cyan-soft);
  font-size: 0.8rem;
  font-weight: 800;
}

.flow strong {
  font-size: 1.08rem;
}

.flow small {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.92rem;
}

.privacy {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 120px;
  align-items: center;
}

.privacy-orb {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 1.3rem;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #06111d;
  background: radial-gradient(circle at 35% 30%, #e5ffff, var(--cyan) 48%, var(--blue));
  box-shadow: 20px 25px 55px rgba(3, 79, 152, 0.45);
}

.privacy ul {
  padding-left: 18px;
}

.privacy li {
  margin: 9px 0;
}

.parents {
  background:
    linear-gradient(180deg, rgba(219, 252, 255, 0.98), rgba(204, 248, 255, 0.95)),
    radial-gradient(circle at 12% 18%, rgba(31, 243, 255, 0.14), transparent 14rem);
  color: #071527;
  max-width: none;
  padding-left: max(28px, calc((100vw - 1128px) / 2));
  padding-right: max(28px, calc((100vw - 1128px) / 2));
}

.parents h2 {
  max-width: 780px;
}

.parent-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 52px;
}

.parent-grid article {
  padding: 30px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(31, 243, 255, 0.18);
  border-radius: 24px;
  box-shadow: 0 16px 38px rgba(12, 52, 85, 0.1);
}

.parent-grid h3 {
  font-size: 1.35rem;
  margin: 0 0 12px;
}

.parent-grid p {
  margin: 0;
  color: #1f4057;
}

.tech {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.tech-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-content: start;
}

.tech-list span {
  padding: 18px 18px;
  border: 1px solid rgba(124, 241, 255, 0.16);
  border-radius: 18px;
  background: rgba(17, 50, 69, 0.7);
  color: #d6f7fb;
}

.faq {
  max-width: 950px;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 21px 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 800;
}

.faq details p {
  color: var(--muted);
  max-width: 700px;
}

.closing {
  text-align: center;
  padding: 150px 28px;
}

.closing p {
  max-width: 760px;
  margin: 0 auto;
  color: var(--ink-soft);
}

.closing .button {
  display: inline-block;
  margin-top: 28px;
}

footer {
  max-width: 1184px;
  margin: auto;
  border-top: 1px solid var(--line);
  padding: 34px 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px 28px;
  align-items: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.ai-disclosure {
  max-width: 430px;
  margin: 0;
  justify-self: center;
  color: #b7d8e7;
  text-align: center;
}

footer div {
  display: flex;
  gap: 18px;
}

@media (max-width: 800px) {
  header {
    padding: 0 20px;
  }

  .menu {
    display: block;
    background: none;
    border: 1px solid var(--line);
    color: var(--ink);
    padding: 8px 10px;
  }

  nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    padding: 24px;
    background: #081725;
    flex-direction: column;
    align-items: flex-start;
    z-index: 3;
  }

  nav.open {
    display: flex;
  }

  .hero,
  .flow,
  .privacy,
  .tech {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero {
    padding-top: 72px;
  }

  .hero h1 {
    max-width: none;
  }

  .actions,
  .hero-chips {
    align-items: flex-start;
    flex-direction: column;
  }

  .mascot-stage {
    min-height: 330px;
  }

  .mascot-stage img {
    width: 320px;
  }

  .orbit {
    width: 300px;
    height: 170px;
  }

  .o2 {
    width: 220px;
    height: 300px;
  }

  .intro,
  .flow,
  .privacy,
  .parents,
  .tech,
  .faq,
  .closing {
    padding-top: 74px;
    padding-bottom: 74px;
  }

  .privacy-orb {
    width: 185px;
    height: 185px;
  }

  .parent-grid,
  .tech-list {
    grid-template-columns: 1fr;
  }

  footer {
    align-items: flex-start;
    gap: 18px;
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .ai-disclosure {
    justify-self: start;
    text-align: left;
  }

  footer p {
    margin: 0;
  }
}

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

  .mascot-stage img,
  .button,
  .nav-cta {
    animation: none;
    transition: none;
  }
}