@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Sora:wght@400;500;600;700;800&display=swap');

:root {
  --deep: #103741;
  --ink: #193b43;
  --muted: #536b70;
  --mint: #eaf4ef;
  --paper: #f6f9f5;
  --line: #c8d9d4;
  --yellow: #ffd782;
  --orange: #fb895d;
  --lime: #cef0a9;
  --blue: #c7e3ed;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: 'DM Sans', Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
h1, h2, h3, p, ol { margin: 0; }
h1, h2, h3 { font-family: 'Sora', Arial, sans-serif; }
.container { width: min(var(--max), calc(100% - 80px)); margin-inline: auto; }
.section-pad { padding-block: 116px; }
.skip-link { position: absolute; top: -60px; left: 16px; z-index: 50; padding: 10px 16px; background: white; color: var(--deep); }
.skip-link:focus { top: 12px; }
.section-label { margin-bottom: 21px; color: #397465; font-size: 12px; font-weight: 700; letter-spacing: .035em; }
h2 { font-size: clamp(42px, 4.5vw, 64px); line-height: 1.14; letter-spacing: -.065em; font-weight: 700; }

/* Header and opening map */
.site-header { background: var(--deep); color: white; }
.header-inner { display: flex; align-items: center; gap: 35px; min-height: 86px; border-bottom: 1px solid rgba(255,255,255,.18); }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; font: 700 21px/1 'Sora', sans-serif; letter-spacing: -.07em; }
.brand img { width: 38px; height: 38px; }
.brand-accent { font-weight: 400; }
.brand-period { color: var(--yellow); }
.main-nav { display: flex; align-items: center; gap: 26px; margin-left: auto; color: #d7e9e4; font-size: 12px; font-weight: 600; }
.main-nav a:hover, .footer-inner > a:last-child:hover { color: var(--yellow); }
.header-wallet { display: inline-flex; align-items: center; justify-content: center; gap: 11px; min-height: 40px; padding: 10px 15px; border: 1px solid #789792; border-radius: 5px; background: transparent; color: white; font-size: 12px; font-weight: 700; white-space: nowrap; }
.header-wallet:hover { background: rgba(255,255,255,.08); }
.header-wallet:disabled, .connect-button:disabled { opacity: .6; cursor: wait; }
.wallet-indicator { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px rgba(206,240,169,.12); }
.hero { overflow: hidden; color: white; background: var(--deep); }
.hero-grid { display: grid; grid-template-columns: 1fr 1.03fr; align-items: center; min-height: 650px; gap: 25px; }
.hero-copy { position: relative; z-index: 1; padding-block: 72px 85px; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin-bottom: 29px; color: var(--lime); font-size: 12px; font-weight: 700; }
.eyebrow-line { width: 24px; height: 1px; background: var(--lime); }
h1 { max-width: 720px; font-size: clamp(60px, 5.75vw, 84px); line-height: 1.07; letter-spacing: -.08em; font-weight: 700; }
h1 span { color: var(--yellow); }
.hero-lede { max-width: 505px; margin-top: 29px; color: #d0e2df; font-size: 16px; line-height: 1.75; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; margin-top: 33px; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; min-width: 187px; padding: 15px 18px; border-radius: 5px; background: var(--yellow); color: var(--deep); font-size: 13px; font-weight: 700; }
.primary-link:hover { background: #ffe6aa; }
.under-link { padding-bottom: 6px; border-bottom: 1px solid #aac7bd; color: white; font-size: 13px; font-weight: 700; }
.under-link span { margin-left: 9px; color: var(--yellow); }
.hero-note { margin-top: 30px; color: #acc8c2; font-size: 11px; }
.hero-visual { position: relative; align-self: stretch; display: flex; align-items: center; justify-content: center; min-width: 0; }
.hero-visual img { display: block; width: min(100%, 650px); height: auto; }
.hero-bottom { display: flex; justify-content: space-between; padding-block: 20px; border-top: 1px solid rgba(255,255,255,.18); color: #aac9c2; font-size: 10px; font-weight: 700; letter-spacing: .09em; }
.chapter-nav { background: #dff0e8; }
.chapter-list { display: grid; grid-template-columns: repeat(4, 1fr); }
.chapter-list a { display: flex; gap: 13px; align-items: center; min-height: 68px; padding: 15px 18px; border-right: 1px solid #bfd8ce; color: var(--ink); font-size: 12px; font-weight: 700; }
.chapter-list a:first-child { border-left: 1px solid #bfd8ce; }
.chapter-list a:hover { background: #cce7d9; }
.chapter-list span { color: #659085; font-family: 'Sora', sans-serif; font-size: 11px; }

/* Intro and timeline */
.overview { background: var(--paper); }
.overview-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 105px; align-items: start; }
.overview .section-heading h2 { max-width: 480px; }
.overview-copy { max-width: 600px; padding-top: 30px; }
.overview-copy p { margin-bottom: 18px; color: var(--muted); font-size: 15px; line-height: 1.75; }
.overview-copy .lead { color: var(--ink); font-size: 21px; line-height: 1.55; font-weight: 600; }
.era-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 78px; border: 1px solid var(--line); }
.era-strip > div { min-height: 177px; padding: 26px 29px; border-right: 1px solid var(--line); }
.era-strip > div:last-child { border-right: 0; }
.era-strip span { display: block; margin-bottom: 24px; color: #628078; font-size: 11px; font-weight: 700; }
.era-strip strong { display: block; margin-bottom: 9px; font: 700 22px/1.25 'Sora', sans-serif; letter-spacing: -.05em; }
.era-strip p { color: var(--muted); font-size: 12px; line-height: 1.55; }
.era-strip .era-active { background: var(--lime); }
.era-active span, .era-active p { color: #416054; }
.era-footnote { margin-top: 14px; color: #718680; font-size: 11px; }

/* Building blocks */
.building { background: #e7f1ed; }
.building-heading { max-width: 770px; margin-bottom: 55px; }
.building-heading > p:last-child { max-width: 650px; margin-top: 19px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.blocks-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #a9c9bd; border-bottom: 1px solid #a9c9bd; }
.block-item { padding: 26px 33px 32px; border-right: 1px solid #a9c9bd; }
.block-item:first-child { padding-left: 0; }
.block-item:last-child { padding-right: 0; border-right: 0; }
.block-art { display: flex; align-items: center; justify-content: center; height: 130px; margin-bottom: 24px; overflow: hidden; border-radius: 5px; font: 500 65px/1 'Sora', sans-serif; }
.block-art-chain { background: #bfd9d1; color: #28695b; }
.block-art-wallet { background: var(--yellow); color: #8a5821; }
.block-art-code { background: #d0deeb; color: #496781; }
.block-art-wallet span { display: inline-block; transform: rotate(-28deg); font-size: 95px; }
.block-art-code span { font-size: 53px; }
.block-number { color: #4c8073; font-size: 11px; font-weight: 700; }
.block-item h3 { margin: 11px 0 11px; font-size: 25px; letter-spacing: -.06em; }
.block-item > p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.block-item .block-example { margin-top: 17px; color: var(--ink); }
.block-example strong { font-weight: 700; }
.building-summary { display: flex; align-items: center; gap: 17px; max-width: 850px; margin-top: 31px; color: var(--ink); }
.summary-mark { color: #428675; font-size: 33px; line-height: 1; }
.building-summary p { font-size: 14px; line-height: 1.6; }

/* Use cases */
.possibilities { background: var(--paper); }
.possibilities-head { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 52px; }
.possibilities-head > p { max-width: 340px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.use-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.use-card { position: relative; min-height: 288px; padding: 34px; overflow: hidden; border-radius: 5px; }
.use-card::after { content: ''; position: absolute; right: -50px; bottom: -125px; width: 260px; height: 260px; border: 2px solid rgba(25,59,67,.17); border-radius: 50%; pointer-events: none; }
.use-icon { position: absolute; top: 26px; right: 30px; color: rgba(25,59,67,.45); font: 500 49px/1 'Sora', sans-serif; }
.use-tag { display: inline-block; margin-bottom: 64px; font-size: 10px; font-weight: 700; letter-spacing: .07em; }
.use-card h3 { position: relative; z-index: 1; max-width: 430px; margin-bottom: 12px; font-size: 27px; letter-spacing: -.055em; }
.use-card p { position: relative; z-index: 1; max-width: 430px; font-size: 14px; line-height: 1.6; }
.use-crypto { background: #fee3a9; }
.use-nft { background: #d5e9e7; }
.use-dao { background: #d8e6f1; }
.use-dapp { background: #d9edbd; }

/* Reality check */
.reality { background: #fbdc9e; }
.reality .section-label { color: #846022; }
.reality-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 95px; }
.reality-heading > p:last-child { max-width: 410px; margin-top: 24px; color: #6b633f; font-size: 15px; line-height: 1.7; }
.reality-list { border-top: 1px solid #bba66e; }
.reality-list > div { display: grid; grid-template-columns: 45px 1fr; column-gap: 16px; padding: 25px 0; border-bottom: 1px solid #bba66e; }
.reality-symbol { grid-row: span 2; display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid #75633e; border-radius: 50%; font: 700 17px/1 'Sora', sans-serif; }
.reality-list h3 { margin-bottom: 8px; font-size: 18px; letter-spacing: -.04em; }
.reality-list p { max-width: 560px; color: #675f42; font-size: 13px; line-height: 1.65; }

/* Wallet demo and closing questions */
.wallet-section { background: var(--deep); color: white; }
.wallet-section .section-label { color: var(--lime); }
.wallet-grid { display: grid; grid-template-columns: 1fr .85fr; gap: 100px; align-items: center; }
.wallet-intro > p:not(.section-label) { max-width: 515px; margin-top: 24px; color: #c3ddd6; font-size: 15px; line-height: 1.72; }
.wallet-intro ol { display: grid; gap: 10px; margin-top: 30px; padding-left: 20px; color: #e0eee9; font-size: 13px; line-height: 1.5; }
.wallet-panel { padding: 34px; border: 1px solid #8aaca1; border-radius: 7px; background: #f0f7f2; color: var(--ink); box-shadow: 12px 12px 0 #2e625e; }
.wallet-panel-top { display: flex; justify-content: space-between; align-items: start; margin-bottom: 45px; color: #659084; font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.panel-orbit { display: flex; align-items: center; justify-content: center; width: 58px; height: 58px; border: 1px solid #80ac9a; border-radius: 50%; background: #d7eddb; color: #3f8372; font-size: 39px; line-height: 1; }
.wallet-panel h3 { margin-bottom: 13px; font-size: 26px; letter-spacing: -.06em; }
.wallet-panel > p:not(.wallet-status) { max-width: 440px; color: #5c7771; font-size: 13px; line-height: 1.6; }
.connect-button { display: flex; justify-content: space-between; align-items: center; width: 100%; gap: 16px; margin-top: 28px; padding: 16px 19px; border: 0; border-radius: 4px; background: var(--yellow); color: var(--deep); font-size: 13px; font-weight: 700; }
.connect-button:hover { background: #ffe6aa; }
.wallet-status { min-height: 35px; margin-top: 15px; color: #4e766c; font-size: 12px; line-height: 1.5; }
.panel-safety { display: flex; align-items: center; gap: 9px; margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--line); color: #55786e; font-size: 11px; line-height: 1.45; }
.panel-safety span { color: #448977; font-size: 17px; }
.faq { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 110px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; display: block; padding: 24px 38px 24px 0; list-style: none; cursor: pointer; font: 600 16px/1.4 'Sora', sans-serif; letter-spacing: -.035em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; position: absolute; right: 2px; top: 20px; color: #3d8b77; font: 400 27px/1 'DM Sans', sans-serif; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list details p { max-width: 590px; padding-bottom: 23px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.site-footer { background: #0c2a32; color: white; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; min-height: 115px; gap: 25px; }
.footer-inner p { color: #a9c7bf; font-size: 12px; }
.footer-inner > a:last-child { font-size: 12px; font-weight: 700; }

@media (max-width: 1080px) {
  .container { width: min(var(--max), calc(100% - 56px)); }
  .main-nav { gap: 16px; }
  .hero-grid { gap: 4px; }
  .overview-grid, .reality-grid, .wallet-grid, .faq-grid { gap: 55px; }
}

@media (max-width: 860px) {
  .header-inner { flex-wrap: wrap; gap: 16px; padding-block: 15px; }
  .main-nav { order: 3; width: 100%; justify-content: space-between; margin-left: 0; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.16); }
  .header-wallet { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 0; }
  .hero-copy { padding-block: 78px 25px; }
  .hero-visual { max-width: 650px; margin: 0 auto 25px; }
  .hero-visual img { width: 100%; }
  .overview-grid, .reality-grid, .wallet-grid, .faq-grid { grid-template-columns: 1fr; gap: 38px; }
  .overview-copy { padding-top: 0; }
  .wallet-panel { max-width: 620px; }
}

@media (max-width: 650px) {
  .container { width: calc(100% - 40px); }
  .section-pad { padding-block: 78px; }
  .brand { font-size: 18px; }
  .brand img { width: 32px; height: 32px; }
  .main-nav { gap: 15px; overflow-x: auto; justify-content: start; scrollbar-width: none; font-size: 11px; }
  .main-nav::-webkit-scrollbar { display: none; }
  .main-nav a { flex: 0 0 auto; }
  .header-wallet { padding: 8px 10px; font-size: 11px; }
  .hero-copy { padding-block: 60px 10px; }
  .eyebrow { margin-bottom: 23px; font-size: 11px; }
  h1 { font-size: clamp(38px, 9vw, 58px); }
  .hero-lede { margin-top: 23px; font-size: 14px; }
  .hero-actions { gap: 19px; }
  .hero-visual { width: calc(100% + 60px); margin: 20px 0 22px -30px; }
  .hero-bottom { font-size: 9px; }
  .chapter-list { display: flex; overflow-x: auto; scrollbar-width: none; }
  .chapter-list::-webkit-scrollbar { display: none; }
  .chapter-list a { flex: 0 0 auto; min-height: 60px; white-space: nowrap; }
  h2 { font-size: clamp(37px, 9vw, 52px); }
  .overview-copy .lead { font-size: 19px; }
  .era-strip { grid-template-columns: 1fr; margin-top: 45px; }
  .era-strip > div { min-height: 0; padding: 23px; border-right: 0; border-bottom: 1px solid var(--line); }
  .era-strip > div:last-child { border-bottom: 0; }
  .era-strip span { margin-bottom: 9px; }
  .blocks-grid { grid-template-columns: 1fr; }
  .block-item, .block-item:first-child, .block-item:last-child { padding: 24px 0; border-right: 0; border-bottom: 1px solid #a9c9bd; }
  .block-item:last-child { border-bottom: 0; }
  .block-art { height: 100px; margin-bottom: 18px; }
  .building-summary { align-items: start; }
  .possibilities-head { display: block; margin-bottom: 34px; }
  .possibilities-head > p { margin-top: 21px; }
  .use-grid { grid-template-columns: 1fr; gap: 12px; }
  .use-card { min-height: 240px; padding: 27px; }
  .use-tag { margin-bottom: 51px; }
  .use-card h3 { font-size: 24px; }
  .reality-list > div { column-gap: 8px; }
  .wallet-panel { padding: 25px; }
  .faq-list summary { font-size: 14px; }
  .footer-inner { flex-wrap: wrap; min-height: 150px; padding-block: 28px; }
  .footer-inner p { order: 3; width: 100%; }
}

@media (max-width: 380px) {
  .header-wallet { width: 39px; min-height: 36px; padding: 0; }
  .header-wallet [data-wallet-label] { display: none; }
  .hero-visual { width: calc(100% + 60px); margin-left: -30px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}