:root {
  --ink: #0b1117;
  --ink-soft: #17212a;
  --paper: #f4f5ef;
  --muted: #7d898e;
  --line: #d6dad4;
  --lime: #c8f35a;
  --lime-dark: #78951f;
  --white: #fff;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.site-shell { min-height: 100vh; max-width: 1440px; margin: 0 auto; padding: 0 5.4vw; }
.topbar { height: 88px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; gap: 13px; align-items: center; text-decoration: none; font-size: 14px; font-weight: 800; letter-spacing: -.02em; }
.brand b { font-weight: 500; color: var(--muted); }
.brand-amp { color: var(--lime-dark); }
.brand-mark { width: 22px; height: 22px; display: inline-flex; align-items: flex-end; gap: 3px; }
.brand-mark span { display: block; width: 5px; background: var(--ink); border-radius: 1px; }
.brand-mark span:nth-child(1) { height: 10px; }
.brand-mark span:nth-child(2) { height: 16px; background: var(--lime-dark); }
.brand-mark span:nth-child(3) { height: 22px; }
.topbar-meta, .eyebrow, .card-topline, .chain-pill, .scan-label, .footer, .network-note, .transparency { font-family: var(--mono); }
.topbar-meta { color: var(--muted); font-size: 10px; letter-spacing: .13em; display: flex; gap: 9px; align-items: center; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lime-dark); box-shadow: 0 0 0 4px rgba(120,149,31,.12); }
.hero { min-height: 616px; display: grid; grid-template-columns: minmax(0, 1fr) 430px; gap: clamp(50px, 10vw, 164px); align-items: center; padding: 76px 0 86px; }
.eyebrow { margin: 0 0 30px; color: var(--muted); font-size: 10px; line-height: 1.4; letter-spacing: .13em; }
.eyebrow span { color: var(--lime-dark); margin-right: 12px; }
h1 { max-width: 730px; margin: 0; font-size: clamp(48px, 6.2vw, 92px); line-height: .98; letter-spacing: -.075em; font-weight: 700; }
h1 em { color: var(--lime-dark); font-style: normal; font-weight: 400; }
.hero-description { max-width: 610px; margin: 37px 0 0; font-size: clamp(16px, 1.4vw, 19px); line-height: 1.7; letter-spacing: -.018em; color: #445057; }
.trust-line { margin-top: 43px; display: flex; align-items: center; gap: 13px; font-family: var(--mono); font-size: 10px; letter-spacing: .015em; text-transform: uppercase; color: var(--ink-soft); }
.trust-rule { width: 28px; height: 2px; background: var(--lime-dark); display: block; }
.donation-card { background: var(--ink); color: var(--paper); padding: 21px; box-shadow: 18px 18px 0 var(--lime); position: relative; }
.card-topline { display: flex; justify-content: space-between; align-items: center; font-size: 10px; letter-spacing: .1em; color: #a9b0ae; }
.chain-pill { color: var(--lime); border: 1px solid #5c6c40; padding: 6px 8px 5px; font-size: 9px; letter-spacing: .12em; }
.qr-frame { margin: 23px auto 12px; width: min(100%, 248px); aspect-ratio: 1; display: grid; place-items: center; background: var(--white); padding: 13px; }
.qr-frame img { width: 100%; height: 100%; display: block; }
.scan-label { color: #86918e; text-align: center; font-size: 9px; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 15px; }
.wallet-address { display: block; padding: 12px 12px 11px; border: 1px solid #344149; color: #dce3dd; font-family: var(--mono); font-size: clamp(9px, .9vw, 11px); line-height: 1.3; text-align: center; word-break: break-all; }
.copy-button { cursor: pointer; border: 0; width: 100%; margin-top: 10px; padding: 15px 16px; background: var(--lime); color: var(--ink); font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .02em; transition: background .2s ease, transform .2s ease; }
.copy-button:hover { background: #dcff80; transform: translateY(-2px); }
.copy-button:focus-visible, .explorer-link:focus-visible, .footer a:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
.copy-icon { display: inline-block; margin-right: 7px; font-size: 16px; line-height: 0; vertical-align: -1px; transform: rotate(-45deg); }
.copy-status { min-height: 13px; margin: 8px 0 0; color: var(--lime); font-family: var(--mono); font-size: 9px; text-align: center; }
.wallet-pay { margin-top: 17px; padding-top: 15px; border-top: 1px solid #344149; }
.wallet-pay label { display: block; margin-bottom: 8px; color: #a9b0ae; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.wallet-pay label span { color: #74817e; text-transform: none; letter-spacing: 0; }
.wallet-pay-row { display: grid; grid-template-columns: 96px 1fr; gap: 7px; }
.wallet-pay input, .wallet-pay select { min-width: 0; border: 1px solid #344149; background: #111a20; color: var(--paper); padding: 11px 9px; font-family: var(--mono); font-size: 11px; }
.wallet-pay select { appearance: none; }
.wallet-pay input::placeholder { color: #70807b; }
.wallet-pay input:focus-visible, .wallet-pay-button:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; }
.wallet-pay-button { cursor: pointer; width: 100%; margin-top: 7px; border: 1px solid var(--lime); background: transparent; color: var(--lime); padding: 10px 9px; font-family: var(--mono); font-size: 10px; line-height: 1.2; transition: background .2s ease, color .2s ease; }
.wallet-pay-button:hover { background: var(--lime); color: var(--ink); }
.wallet-pay-status { min-height: 13px; margin: 9px 0 0; color: #82908b; font-family: var(--mono); font-size: 8px; line-height: 1.4; }
.presentation { border-top: 1px solid var(--line); display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 430px); gap: clamp(50px, 11vw, 170px); align-items: center; padding: 82px 0 94px; }
.presentation-copy h2 { max-width: 600px; margin: 0; font-size: clamp(34px, 4.7vw, 66px); line-height: 1.02; letter-spacing: -.07em; }
.presentation-copy > p:not(.eyebrow) { max-width: 570px; margin: 29px 0 0; color: #445057; font-size: 16px; line-height: 1.7; }
.presentation-copy .dna-statement { color: var(--ink); font-size: 17px; letter-spacing: -.025em; }
.dna-statement strong { color: var(--lime-dark); font-weight: 700; }
.ledger-strip { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 34px; max-width: 590px; color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .02em; text-transform: uppercase; }
.ledger-strip span::before { content: '·'; color: var(--lime-dark); margin-right: 7px; }
.video-card { margin: 0; }
.video-wrap { background: var(--ink); padding: 12px; box-shadow: 15px 15px 0 var(--lime); }
.video-wrap video { display: block; width: 100%; max-height: 620px; aspect-ratio: 9 / 16; object-fit: cover; background: #05090d; }
.video-card figcaption { margin-top: 24px; color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.details { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; padding: 53px 0 78px; }
.section-heading { grid-column: 1 / -1; margin: 0; max-width: 760px; font-size: clamp(23px, 2.8vw, 38px); line-height: 1.12; letter-spacing: -.055em; font-weight: 700; }
.detail-block { min-height: 170px; }
.token-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 32px; }
.token { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); padding: 12px 15px; font-size: 12px; font-weight: 700; letter-spacing: -.02em; }
.token i { font-style: normal; display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; font-size: 11px; color: var(--white); background: var(--ink); }
.token-usdc i { background: #2775ca; }
.token-usdt i { background: #26a17b; }
.token-eth i { background: #627eea; font-size: 8px; }
.network-note { margin: 22px 0 0; color: var(--muted); font-size: 10px; line-height: 1.8; letter-spacing: .01em; }
.network-note strong { color: var(--ink); font-weight: 500; }
.network-note span strong { color: var(--lime-dark); }
.action-copy { margin: 32px 0 20px; font-size: clamp(18px, 1.8vw, 25px); line-height: 1.42; letter-spacing: -.045em; font-weight: 600; }
.explorer-link { display: inline-flex; align-items: center; gap: 7px; color: var(--lime-dark); font-family: var(--mono); font-size: 11px; text-decoration: underline; text-decoration-color: #bccd82; text-underline-offset: 4px; }
.explorer-link span, .footer a span { font-size: 15px; text-decoration: none; }
.transparency { margin: 31px 0 0; color: var(--muted); font-size: 10px; letter-spacing: .01em; }
.transparency span { color: var(--lime-dark); margin-right: 7px; }
.footer { border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; padding: 22px 0 28px; color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.footer a { color: var(--ink); text-decoration: none; }
.footer a span { color: var(--lime-dark); }

@media (max-width: 900px) {
  .site-shell { padding: 0 6vw; }
  .hero { grid-template-columns: minmax(0, 1fr) 340px; gap: 45px; }
  .donation-card { box-shadow: 12px 12px 0 var(--lime); }
}
@media (max-width: 700px) {
  .site-shell { padding: 0 20px; }
  .topbar { height: 73px; }
  .topbar-meta { font-size: 8px; letter-spacing: .08em; }
  .hero { display: block; padding: 51px 0 64px; }
  h1 { font-size: clamp(43px, 13vw, 68px); }
  .hero-description { margin-top: 28px; font-size: 15px; line-height: 1.65; }
  .trust-line { margin-top: 30px; font-size: 9px; line-height: 1.5; align-items: flex-start; }
  .trust-rule { flex: 0 0 20px; margin-top: 5px; }
  .donation-card { margin: 51px 12px 0 0; padding: 17px; }
  .qr-frame { margin-top: 20px; width: min(100%, 238px); }
  .presentation { display: block; padding: 61px 0 76px; }
  .presentation-copy h2 { font-size: clamp(35px, 10vw, 54px); }
  .presentation-copy > p:not(.eyebrow) { font-size: 15px; }
  .video-card { margin: 52px 12px 0 0; }
  .video-wrap { padding: 9px; box-shadow: 10px 10px 0 var(--lime); }
  .details { display: block; padding: 41px 0 58px; }
  .detail-block { min-height: 0; }
  .action-block { margin-top: 52px; }
  .action-copy { margin-top: 27px; font-size: 21px; }
  .footer { font-size: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .copy-button { transition: none; }
}