:root {
  color-scheme: light;
  --ink: #152034;
  --soft: #2b3950;
  --muted: #687287;
  --paper: #fffaf0;
  --line: rgba(21, 32, 52, .11);
  --surface: rgba(255, 255, 255, .82);
  --blue: #1978e8;
  --blue-dark: #0c5fc4;
  --coral: #ff665a;
  --gold: #f6b91f;
  --green: #25b96f;
  --purple: #8a61db;
  --shadow: 0 24px 70px rgba(47, 39, 27, .11);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: radial-gradient(circle at 8% 7%, rgba(246,185,31,.16), transparent 29rem), radial-gradient(circle at 92% 15%, rgba(25,120,232,.13), transparent 34rem), linear-gradient(150deg, #fffdf7, var(--paper) 53%, #f8eddd);
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.58;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--blue-dark); text-underline-offset: .18em; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; border-radius: 6px; }
.skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; padding: 10px 14px; color: white; background: var(--ink); border-radius: 10px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; z-index: 50; top: 0; background: rgba(255,250,240,.84); border-bottom: 1px solid transparent; backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%); }
nav { display: flex; align-items: center; justify-content: space-between; min-height: 78px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-size: 1.06rem; font-weight: 900; letter-spacing: .1em; text-decoration: none; }
.brand img { width: 43px; height: 43px; border-radius: 12px; box-shadow: 0 8px 20px rgba(40,34,24,.14); }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--soft); font-size: .94rem; font-weight: 760; text-decoration: none; }
.nav-links a:hover { color: var(--blue-dark); }
.hero { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(330px,.9fr); gap: clamp(38px,7vw,88px); align-items: center; min-height: min(790px, calc(100vh - 78px)); padding: 64px 0 86px; }
.eyebrow { color: var(--blue-dark); font-size: .76rem; font-weight: 900; letter-spacing: .17em; }
h1, h2, h3 { text-wrap: balance; }
h1 { margin: 16px 0 22px; font-size: clamp(3.5rem,8.5vw,7.2rem); line-height: .9; letter-spacing: -.067em; }
.hero h1 span { color: var(--blue); }
.lead { max-width: 650px; margin: 0; color: var(--muted); font-size: clamp(1.05rem,2vw,1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 12px 19px; color: var(--ink); background: rgba(255,255,255,.7); border: 1px solid var(--line); border-radius: 15px; font-weight: 820; text-decoration: none; box-shadow: 0 8px 24px rgba(35,31,24,.07); }
.button.primary { color: white; border-color: var(--ink); background: var(--ink); }
.button:hover { transform: translateY(-1px); }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 25px 0 0; padding: 0; color: var(--muted); font-size: .88rem; font-weight: 680; list-style: none; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--green); font-weight: 950; }
.network-stage { position: relative; display: grid; place-items: center; aspect-ratio: 1; border: 1px solid rgba(255,255,255,.8); border-radius: 35%; background: radial-gradient(circle at 50% 38%, rgba(255,255,255,.95), rgba(255,249,237,.62) 56%, rgba(25,120,232,.08)); box-shadow: var(--shadow); overflow: hidden; }
.network-board { position: relative; z-index: 1; width: 82%; aspect-ratio: 1; }
.network-ring { position: absolute; border: 4px solid rgba(21,32,52,.2); border-radius: 50%; }
.network-ring.outer { inset: 4%; }
.network-ring.inner { inset: 28%; border-width: 3px; }
.network-line { position: absolute; top: 49.4%; left: 7%; width: 86%; height: 3px; background: rgba(21,32,52,.16); transform-origin: center; }
.network-line.l2 { transform: rotate(60deg); }
.network-line.l3 { transform: rotate(120deg); }
.stone { position: absolute; z-index: 2; width: 17%; aspect-ratio: 1; border: 4px solid rgba(255,255,255,.82); border-radius: 50%; box-shadow: inset 0 -8px 14px rgba(0,0,0,.13), 0 8px 20px rgba(28,27,25,.13); animation: breathe 4.8s ease-in-out infinite; }
.stone.s1 { left: 41.5%; top: -1%; background: var(--coral); }
.stone.s2 { right: 1%; top: 41.5%; background: var(--gold); animation-delay: -1.2s; }
.stone.s3 { left: 41.5%; bottom: -1%; background: var(--green); animation-delay: -2.4s; }
.stone.s4 { left: 1%; top: 41.5%; background: var(--purple); animation-delay: -3.6s; }
.stone.s5 { left: 41.5%; top: 41.5%; background: var(--paper); border-color: rgba(21,32,52,.2); box-shadow: inset 0 0 0 6px rgba(255,255,255,.7); animation: vacancy 2.8s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.035); } }
@keyframes vacancy { 50% { transform: scale(.92); box-shadow: inset 0 0 0 6px rgba(255,255,255,.8), 0 0 0 9px rgba(25,120,232,.07); } }
.principle { padding: 48px 0; color: white; background: var(--ink); }
.principle .shell { display: grid; grid-template-columns: .55fr 1.45fr; gap: 42px; align-items: start; }
.principle .eyebrow { color: #7dc2ff; }
.principle p { max-width: 850px; margin: 0; font-size: clamp(1.65rem,4.2vw,3.25rem); line-height: 1.1; letter-spacing: -.04em; font-weight: 820; }
.section { padding: 104px 0; }
.section.compact { padding: 78px 0; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head h2 { margin: 11px 0 15px; font-size: clamp(2.3rem,5vw,4.35rem); line-height: .98; letter-spacing: -.052em; }
.section-head p { margin: 0; color: var(--muted); font-size: 1.08rem; }
.mode-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 15px; }
.mode-card { grid-column: span 2; min-height: 236px; padding: 25px; border: 1px solid var(--line); border-radius: 25px; background: var(--surface); box-shadow: 0 14px 42px rgba(47,39,27,.07); }
.mode-card:nth-child(4) { grid-column: 2 / span 2; }
.mode-card h3 { margin: 20px 0 8px; font-size: 1.35rem; }
.mode-card p { margin: 0; color: var(--muted); }
.mode-mark { position: relative; width: 58px; height: 46px; }
.mode-mark i { position: absolute; width: 19px; height: 19px; border-radius: 50%; background: var(--blue); box-shadow: 0 4px 9px rgba(21,32,52,.14); }
.mode-mark i:nth-child(1) { top: 13px; left: 0; }
.mode-mark i:nth-child(2) { top: 0; right: 0; background: var(--coral); }
.mode-mark i:nth-child(3) { right: 0; bottom: 0; background: var(--gold); }
.mode-mark::after { content: ""; position: absolute; z-index: -1; top: 22px; left: 12px; width: 37px; height: 3px; background: rgba(21,32,52,.2); transform: rotate(-17deg); }
.screens-section { background: rgba(255,255,255,.48); border-block: 1px solid rgba(21,32,52,.07); }
.screen-rail { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 15px; }
.screen-rail figure { margin: 0; }
.screen-rail img { width: 100%; border-radius: 22px; box-shadow: 0 18px 46px rgba(31,35,44,.14); }
.screen-rail figcaption { margin-top: 12px; color: var(--muted); font-size: .86rem; font-weight: 740; text-align: center; }
.challenge-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 17px; }
.challenge-card { position: relative; min-height: 310px; padding: 29px; color: white; border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); }
.challenge-card::after { content: ""; position: absolute; right: -34px; bottom: -42px; width: 180px; height: 180px; border: 3px solid rgba(255,255,255,.16); border-radius: 50%; box-shadow: 0 0 0 29px rgba(255,255,255,.06), 0 0 0 58px rgba(255,255,255,.04); }
.challenge-card.daily { background: linear-gradient(145deg,#ff755e,#cf4152); }
.challenge-card.weekly { background: linear-gradient(145deg,#246bd2,#243f93); }
.challenge-card.journey { background: linear-gradient(145deg,#7560d7,#4f398f); }
.challenge-card .small { font-size: .72rem; letter-spacing: .14em; font-weight: 900; opacity: .82; }
.challenge-card h3 { margin: 14px 0 10px; font-size: 2rem; letter-spacing: -.04em; }
.challenge-card p { position: relative; z-index: 1; margin: 0; color: rgba(255,255,255,.84); }
.event-panel { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; padding: clamp(32px,6vw,68px); color: white; border-radius: 38px; background: radial-gradient(circle at 82% 18%, rgba(255,168,66,.28), transparent 20rem), linear-gradient(145deg,#251d47,#442768 58%,#712f64); box-shadow: var(--shadow); overflow: hidden; }
.event-panel .eyebrow { color: #ffbd69; }
.event-panel h2 { margin: 12px 0 18px; font-size: clamp(2.35rem,5vw,4.3rem); line-height: .98; letter-spacing: -.052em; }
.event-panel p { color: rgba(255,255,255,.77); }
.event-rewards { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.reward { display: grid; place-items: center; min-height: 145px; padding: 16px; border: 1px solid rgba(255,255,255,.12); border-radius: 23px; background: rgba(255,255,255,.08); text-align: center; backdrop-filter: blur(8px); }
.reward strong { display: block; font-size: 2.1rem; }
.reward span { color: rgba(255,255,255,.72); font-size: .78rem; font-weight: 760; }
.score-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start; }
.score-card { padding: 31px; border: 1px solid var(--line); border-radius: 28px; background: var(--surface); box-shadow: 0 14px 42px rgba(47,39,27,.07); }
.score-card h3 { margin-top: 0; font-size: 1.7rem; }
.score-card ul { display: grid; gap: 12px; padding-left: 20px; color: var(--muted); }
.score-card li::marker { color: var(--blue); }
.metric { display: flex; justify-content: space-between; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.metric:last-child { border: 0; }
.metric span { color: var(--muted); }
.metric strong { text-align: right; }
.launch-panel { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: clamp(30px,6vw,58px); border-radius: 34px; background: #dcecff; box-shadow: var(--shadow); }
.launch-panel h2 { margin: 8px 0; font-size: clamp(2.2rem,5vw,4rem); line-height: 1; letter-spacing: -.05em; }
.launch-panel p { max-width: 650px; margin: 0; color: var(--soft); }
.document-wrap { padding: 66px 0 100px; }
.document { max-width: 820px; margin: 0 auto; padding: clamp(28px,6vw,60px); border: 1px solid var(--line); border-radius: 32px; background: rgba(255,255,255,.78); box-shadow: var(--shadow); }
.document h1 { margin-top: 15px; font-size: clamp(3rem,8vw,5.4rem); line-height: .94; }
.document h2 { margin: 44px 0 10px; font-size: 1.65rem; letter-spacing: -.03em; }
.document h3 { margin: 27px 0 7px; }
.document p, .document li { color: var(--muted); }
.document ul, .document ol { padding-left: 22px; }
.document li + li { margin-top: 8px; }
.document .intro { color: var(--soft); font-size: 1.12rem; }
.notice { margin: 28px 0; padding: 20px; border-left: 5px solid var(--blue); border-radius: 8px 18px 18px 8px; background: #eaf4ff; }
.notice p { margin: 0; color: var(--soft); }
.contact-card { margin-top: 28px; padding: 24px; color: white; border-radius: 22px; background: var(--ink); }
.contact-card p { color: rgba(255,255,255,.76); }
.contact-card a { color: #93cdff; }
.step-list { counter-reset: steps; display: grid; gap: 14px; padding: 0 !important; list-style: none; }
.step-list li { position: relative; min-height: 60px; padding: 17px 18px 17px 62px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.72); }
.step-list li::before { counter-increment: steps; content: counter(steps); position: absolute; top: 14px; left: 16px; display: grid; place-items: center; width: 34px; height: 34px; color: white; background: var(--blue); border-radius: 50%; font-weight: 900; }
.site-footer { padding: 48px 0 36px; color: var(--muted); border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.2fr repeat(2,.8fr); gap: 32px; }
.footer-grid h2 { margin: 0 0 12px; color: var(--ink); font-size: .82rem; letter-spacing: .12em; }
.footer-grid p { max-width: 380px; margin: 14px 0 0; font-size: .9rem; }
.footer-links { display: grid; gap: 8px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--blue-dark); }
.copyright { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); font-size: .8rem; }
.not-found { display: grid; place-items: center; min-height: 70vh; text-align: center; }
.not-found h1 { color: var(--blue); }
@media (max-width: 920px) {
  .mode-grid { grid-template-columns: repeat(2,1fr); }
  .mode-card, .mode-card:nth-child(4) { grid-column: auto; }
  .mode-card:last-child { grid-column: 1 / -1; }
  .screen-rail { grid-template-columns: repeat(5,225px); margin-right: -20px; padding: 4px 20px 26px 0; overflow-x: auto; scroll-snap-type: x mandatory; }
  .screen-rail figure { scroll-snap-align: start; }
  .event-panel, .score-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .shell { width: min(100% - 28px,1180px); }
  nav { min-height: 68px; }
  .brand img { width: 38px; height: 38px; }
  .nav-links a:nth-child(1), .nav-links a:nth-child(2) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 52px 0 70px; }
  .network-stage { width: min(480px,100%); margin: 0 auto; }
  .principle .shell { grid-template-columns: 1fr; gap: 15px; }
  .section { padding: 78px 0; }
  .mode-grid, .challenge-grid { grid-template-columns: 1fr; }
  .mode-card:last-child { grid-column: auto; }
  .challenge-card { min-height: 260px; }
  .event-rewards { grid-template-columns: 1fr; }
  .reward { grid-template-columns: auto 1fr; min-height: 86px; text-align: left; }
  .launch-panel { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .document-wrap { padding: 38px 0 72px; }
}
@media (max-width: 460px) {
  .nav-links { gap: 13px; }
  .nav-links a { font-size: .86rem; }
  h1 { font-size: clamp(3.35rem,18vw,5rem); }
  .trust-list { display: grid; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}