:root {
  color-scheme: dark;
  --bg: #0c0d10;
  --surface: #15171c;
  --surface-2: #1b1e24;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f5f6f8;
  --muted: #aaaeb8;
  --cyan: #45d9ff;
  --indigo: #6d6aff;
  --pink: #f453a7;
  --orange: #ff9a45;
  --green: #5ee39d;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 4%, rgba(109, 106, 255, 0.15), transparent 34rem),
    radial-gradient(circle at 12% 45%, rgba(244, 83, 167, 0.055), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: inherit; }
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: 78px;
  padding-right: max(20px, calc((100% - 1180px) / 2));
  padding-left: max(20px, calc((100% - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.075);
  background: rgba(12, 13, 16, 0.82);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
}
.brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 11px;
  font-size: 19px;
  font-weight: 750;
  text-decoration: none;
}
.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  background: linear-gradient(145deg, #17191e, #383b45);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
}
.brand-mark span {
  width: 7px;
  height: 23px;
  border-radius: 5px;
  transform: rotate(7deg);
  background: linear-gradient(var(--cyan), var(--indigo) 35%, var(--pink) 68%, var(--orange));
}
nav { display: flex; align-items: center; gap: 24px; }
nav a,
footer a {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.18s ease;
}
nav a:hover,
footer a:hover { color: var(--text); }
.language-link {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #d8dbe1;
}

main { overflow: hidden; }
.hero {
  width: min(1180px, calc(100% - 40px));
  min-height: 760px;
  margin: 0 auto;
  padding: 78px 0 100px;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 20px;
  color: #bfc2ca;
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  font-size: clamp(54px, 6.1vw, 86px);
  line-height: 1.06;
  letter-spacing: -0.05em;
}
h1 span,
.section-heading h2 span {
  color: transparent;
  background: linear-gradient(100deg, var(--cyan), var(--indigo) 38%, var(--pink) 70%, var(--orange));
  background-clip: text;
  -webkit-background-clip: text;
}
.lead {
  max-width: 560px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  min-height: 48px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.18s ease, background 0.18s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary { background: #f5f6f8; color: #111216; }
.button.secondary { border: 1px solid var(--line); background: rgba(255, 255, 255, 0.055); }
.trust-list {
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  gap: 20px;
  color: #8f949f;
  font-size: 12px;
  list-style: none;
}
.trust-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  margin: 0 8px 2px 0;
  display: inline-block;
  border-radius: 50%;
  background: var(--green);
}
.hero-visual { position: relative; }
.hero-visual img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  box-shadow: 0 42px 100px rgba(0, 0, 0, 0.5);
}
.color-orbit { position: absolute; border-radius: 50%; filter: blur(1px); opacity: 0.6; }
.orbit-one { width: 280px; height: 280px; right: -90px; top: -100px; background: linear-gradient(145deg, var(--cyan), var(--indigo)); }
.orbit-two { width: 220px; height: 220px; left: -60px; bottom: -75px; background: linear-gradient(145deg, var(--pink), var(--orange)); }

.section-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 120px 0;
}
.section-heading { max-width: 820px; margin-bottom: 48px; }
.section-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4.8vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.045em;
}
.section-heading > p:last-child:not(.eyebrow) {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}
.promise {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.promise article,
.support-card,
.document section,
.privacy-points,
.showcase-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
}
.promise article { min-height: 260px; padding: 30px; }
.number {
  color: #777d89;
  font: 700 12px ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.02em;
}
.promise h3 { margin: 74px 0 13px; font-size: 23px; }
.promise p,
.support-card p,
.showcase-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.capability-list {
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.025);
  list-style: none;
}
.capability-list li { min-width: 0; padding: 22px; }
.capability-list li + li { border-left: 1px solid var(--line); }
.capability-list strong,
.capability-list span { display: block; }
.capability-list strong { margin-bottom: 7px; color: #e8eaf0; font-size: 14px; }
.capability-list span { color: var(--muted); font-size: 12px; line-height: 1.6; }

.showcase { padding-top: 100px; }
.effect-grid {
  margin-bottom: 18px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.effect-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
}
.effect-visual { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: #08090b; }
.effect-visual img { width: 100%; height: auto; display: block; }
.effect-visual .effect-layer { position: absolute; inset: 0; }
.keep-color-effect .effect-base { filter: grayscale(1); }
.keep-color-effect .effect-layer { clip-path: inset(14% 11% 14% 49% round 10px); }
.inverse-effect .effect-layer { clip-path: inset(14% 11% 14% 49% round 10px); filter: grayscale(1); }
.effect-selection {
  position: absolute;
  top: 14%;
  right: 11%;
  bottom: 14%;
  left: 49%;
  border: 2px solid rgba(69, 217, 255, 0.95);
  border-radius: 10px;
  box-shadow: 0 0 0 4px rgba(69, 217, 255, 0.16), inset 0 0 28px rgba(69, 217, 255, 0.08);
}
.effect-label {
  position: absolute;
  top: calc(14% + 12px);
  left: calc(49% + 12px);
  padding: 6px 9px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(10, 11, 14, 0.78);
  color: #f5f6f8;
  font-size: 11px;
  font-weight: 750;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.effect-card figcaption { padding: 22px 24px 24px; }
.effect-card figcaption strong,
.effect-card figcaption span { display: block; }
.effect-card figcaption strong { margin-bottom: 6px; font-size: 18px; }
.effect-card figcaption span { color: var(--muted); font-size: 14px; line-height: 1.7; }
.showcase-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.showcase-card { margin: 0; overflow: hidden; }
.showcase-card-wide { grid-column: 1 / -1; }
.showcase-card > a { display: block; overflow: hidden; border-bottom: 1px solid var(--line); background: #0b0c0f; }
.showcase-card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.35s ease, filter 0.35s ease;
}
.showcase-card a:hover img { transform: scale(1.012); filter: brightness(1.04); }
.showcase-card figcaption { padding: 28px 30px 30px; }
.showcase-card h3 { margin: 12px 0 8px; font-size: 22px; letter-spacing: -0.02em; }

.availability {
  margin-top: 40px;
  padding: 140px 20px;
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 50% 100%, rgba(69, 217, 255, 0.11), transparent 36rem);
}
.availability h2 { margin: 0; font-size: clamp(34px, 4.5vw, 62px); letter-spacing: -0.04em; }
.availability > p:not(.eyebrow) { max-width: 660px; margin: 24px auto; color: var(--muted); font-size: 17px; line-height: 1.9; }
.requirements { padding: 12px 18px; display: inline-flex; border: 1px solid var(--line); border-radius: 999px; color: #c4c7ce; font-size: 13px; }

.policy-section { padding-top: 140px; }
.privacy-overview {
  margin-bottom: 18px;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 18px;
}
.privacy-points { padding: 38px 40px; }
.privacy-points h3,
.document h3,
.support-card h3 { margin: 0 0 18px; font-size: 24px; letter-spacing: -0.02em; }
.privacy-image {
  min-width: 0;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #0b0c0f;
}
.privacy-image img { width: 100%; height: 100%; display: block; object-fit: cover; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.check-list li + li { margin-top: 12px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }

.document { display: grid; gap: 18px; }
.document section { padding: 38px 42px; }
.document p,
.document li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}
.document p { margin: 0; }
.document p + p { margin-top: 16px; }
.document ul { margin: 0; padding-left: 1.4em; }
.document a { color: #83ddff; text-underline-offset: 3px; }
.document code {
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.3);
  color: #e8e9ec;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  overflow-wrap: anywhere;
}
.document h4 { margin: 30px 0 8px; color: #e7e9ed; font-size: 17px; }
.policy-grid { grid-template-columns: repeat(2, 1fr); }
.policy-grid section:first-child { grid-column: 1 / -1; }

.support-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 18px; }
.support-card {
  min-height: 230px;
  padding: 30px;
  display: block;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.support-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025));
}
.support-card h3 { margin-top: 58px; }
.support-document { grid-template-columns: 0.75fr 1.25fr; }
.support-document section:nth-child(2) { grid-row: span 2; }
.faq details { padding: 20px 0; border-top: 1px solid var(--line); }
.faq details:first-of-type { margin-top: 22px; }
.faq details:last-child { padding-bottom: 0; }
.faq summary { cursor: pointer; color: #eceef2; font-size: 16px; font-weight: 680; }
.faq details p { margin-top: 12px; }

.terms-section { padding-bottom: 150px; }
.terms-grid { grid-template-columns: repeat(2, 1fr); }
.terms-grid section:last-child { grid-column: 1 / -1; }

footer {
  width: min(1180px, calc(100% - 40px));
  min-height: 112px;
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-top: 1px solid var(--line);
  color: #858a95;
  font-size: 13px;
}
footer div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 14px 24px; }

.not-found {
  min-height: 100vh;
  padding: 30px;
  display: grid;
  place-content: center;
  justify-items: start;
  gap: 24px;
}
.not-found h1 { font-size: clamp(42px, 6vw, 80px); }
.mobile-break { display: none; }
.keep-together { white-space: nowrap; }

@media (min-width: 761px) {
  .section-heading { max-width: 1000px; }
  .section-heading h2 span { white-space: nowrap; }
}

@media (max-width: 1000px) {
  nav { gap: 16px; }
  .hero { min-height: 0; grid-template-columns: 1fr; padding-top: 70px; }
  .hero-copy { text-align: center; }
  .lead { margin-left: auto; margin-right: auto; }
  .hero-actions,
  .trust-list { justify-content: center; }
  .hero-visual { max-width: 820px; margin: 0 auto; }
  .promise { grid-template-columns: 1fr; }
  .promise article { min-height: 210px; }
  .promise h3 { margin-top: 38px; }
  .capability-list { grid-template-columns: repeat(2, 1fr); }
  .capability-list li:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .capability-list li:nth-child(4) { border-top: 1px solid var(--line); }
  .privacy-overview { grid-template-columns: 1fr; }
  .privacy-image img { height: auto; }
  .support-cards { grid-template-columns: 1fr; }
  .support-card { min-height: 180px; }
  .support-card h3 { margin-top: 36px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 126px; }
  .site-header {
    min-height: 0;
    padding: 13px 14px 10px;
    flex-wrap: wrap;
    gap: 10px;
  }
  .brand-mark { width: 32px; height: 32px; }
  .brand-mark span { height: 20px; }
  nav {
    width: 100%;
    padding: 1px 0 5px;
    gap: 19px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    white-space: nowrap;
  }
  nav::-webkit-scrollbar { display: none; }
  nav a { flex: none; }
  .language-link { padding: 4px 9px; }
  .section-shell { padding: 92px 0; }
  .showcase-grid,
  .effect-grid,
  .policy-grid,
  .support-document,
  .terms-grid { grid-template-columns: 1fr; }
  .showcase-card-wide,
  .policy-grid section:first-child,
  .terms-grid section:last-child { grid-column: auto; }
  .support-document section:nth-child(2) { grid-row: auto; }
  .availability { padding-top: 110px; padding-bottom: 110px; }
}

@media (max-width: 560px) {
  .hero,
  .section-shell,
  footer { width: min(100% - 28px, 1180px); }
  .hero { gap: 44px; padding: 54px 0 78px; }
  h1 { font-size: 47px; }
  .lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .trust-list { gap: 10px; font-size: 11px; }
  .orbit-one { right: -160px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2 { font-size: 37px; }
  .mobile-break { display: block; }
  .section-heading > p:last-child:not(.eyebrow) { font-size: 15px; }
  .promise article,
  .support-card,
  .document section,
  .privacy-points { padding: 28px 24px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-list li + li,
  .capability-list li:nth-child(4) { border-top: 1px solid var(--line); border-left: 0; }
  .showcase-card figcaption { padding: 24px; }
  .showcase-card h3 { font-size: 20px; }
  .requirements { display: block; line-height: 1.7; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; }
  footer div { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}