/* Proof of Creation — landing (референс diz/) */
:root {
  --bg: #f6f1ea;
  --bg2: #efe8de;
  --ink: #1b1712;
  --muted: #7c7368;
  --line: #e2dacd;
  --card: #ffffff;
  --dark: #1b1712;
  --green: #22a35c;
  --serif: "Playfair Display", Georgia, serif;
  --sans: "Manrope", "DM Sans", -apple-system, sans-serif;
  --maxw: 1240px;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.55; }
img { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2 { font-family: var(--serif); font-weight: 500; line-height: 1.08; letter-spacing: -0.01em; }

.ic { width: 22px; height: 22px; flex: none; }
.mono { font-family: ui-monospace, "SF Mono", Consolas, monospace; }
.eyebrow { font-size: 11.5px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); margin-bottom: 18px; }
.eyebrow.light { color: rgba(255,255,255,.75); }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(246,241,234,.9); backdrop-filter: blur(10px); }
.header-inner { max-width: var(--maxw); margin: 0 auto; padding: 18px 32px; display: flex; align-items: center; gap: 40px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { font-family: var(--serif); font-size: 30px; font-weight: 600; font-style: italic; line-height: 1; }
.brand-name { font-family: var(--serif); font-size: 19px; font-weight: 600; letter-spacing: .01em; }
.main-nav { flex: 1; display: flex; justify-content: center; gap: 34px; }
.main-nav a { text-decoration: none; font-size: 14.5px; font-weight: 600; color: var(--ink); opacity: .85; }
.main-nav a:hover { opacity: 1; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.lang-btn { background: none; border: 0; font: inherit; font-weight: 700; font-size: 13.5px; display: flex; align-items: center; gap: 7px; cursor: pointer; color: var(--ink); }
.lang-btn .ic { width: 18px; height: 18px; }
.chev { font-size: 12px; }
.btn { display: inline-flex; align-items: center; gap: 10px; border-radius: 999px; padding: 12px 22px;
  font-weight: 700; font-size: 14.5px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn .arr { font-weight: 400; }
.btn-dark { background: var(--dark); color: #fff; }
.btn-lg { padding: 15px 28px; font-size: 15.5px; }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-glass { background: rgba(255,255,255,.92); color: var(--ink); }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; }

/* ---------- hero ---------- */
.hero-inner { max-width: var(--maxw); margin: 0 auto; padding: 84px 32px 110px; display: grid;
  grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: center; position: relative; }
.hero h1 { font-size: clamp(44px, 5.4vw, 76px); margin-bottom: 26px; }
.hero-lede { color: var(--muted); font-size: 17.5px; max-width: 46ch; margin-bottom: 36px; }
.hero-buttons { display: flex; align-items: center; gap: 26px; margin-bottom: 52px; }
.btn-plain { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 14.5px; text-decoration: none; }
.play-ic { width: 26px; height: 26px; border: 1.5px solid var(--ink); border-radius: 50%; display: inline-flex;
  align-items: center; justify-content: center; font-size: 9px; padding-left: 2px; }
.hero-trust { display: flex; gap: 36px; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; line-height: 1.3; }
.trust-item .ic { color: var(--ink); opacity: .8; }

.hero-art { position: relative; }
.hero-photo { border-radius: 26px; overflow: hidden; box-shadow: 0 30px 60px -20px rgba(60,45,30,.35); }
.hero-photo img { width: 100%; height: 480px; object-fit: cover; object-position: center 65%; }
.hero-ring { position: absolute; inset: -7% -6% auto -6%; height: 114%; border: 1px solid rgba(160,130,90,.35);
  border-radius: 50%; pointer-events: none; transform: rotate(-8deg); }
.chip { position: absolute; display: inline-flex; align-items: center; gap: 8px; background: #fff;
  border-radius: 999px; padding: 9px 16px; font-size: 13px; font-weight: 700; box-shadow: 0 12px 30px -10px rgba(60,45,30,.3); }
.chip-onchain { top: 26px; right: -14px; }
.chip .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ink); }
.proof-card { position: absolute; right: -30px; top: 150px; width: 300px; background: var(--card);
  border-radius: 18px; padding: 16px; box-shadow: 0 30px 60px -18px rgba(50,40,30,.4); }
.proof-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.proof-thumb { width: 46px; height: 46px; border-radius: 10px; object-fit: cover; }
.proof-name { display: flex; flex-direction: column; }
.proof-name strong { font-size: 14px; }
.proof-name small { color: var(--muted); font-size: 12px; }
.proof-rows div { display: flex; justify-content: space-between; padding: 7px 0; font-size: 12.5px; }
.proof-rows dt { color: var(--muted); }
.proof-rows dd { margin: 0; font-weight: 600; }
.pill-verified { display: inline-flex; align-items: center; gap: 7px; background: #e8f5ec; color: #177543;
  font-weight: 700; font-size: 12.5px; padding: 6px 14px; border-radius: 999px; }
.pill-verified svg { width: 15px; height: 15px; }
.scroll-hint { position: absolute; right: -8px; top: 100px; display: flex; flex-direction: column;
  align-items: center; gap: 8px; color: var(--muted); font-size: 11.5px; letter-spacing: .12em; }
.scroll-hint span { writing-mode: vertical-rl; }
.scroll-hint i { display: block; width: 1px; height: 110px; background: var(--line); }
.scroll-hint svg { width: 11px; height: 17px; }

/* ---------- sections общее ---------- */
.section { padding: 90px 0; }
.section > * { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* ---------- how it works ---------- */
.how-inner { display: grid; grid-template-columns: 340px 1fr; gap: 70px; align-items: start; }
.how-intro h2 { font-size: clamp(32px, 3.4vw, 48px); margin-bottom: 18px; }
.how-intro p { color: var(--muted); margin-bottom: 30px; }
.how-steps { display: flex; gap: 30px; border-left: 1px solid var(--line); padding-left: 60px; }
.step { position: relative; flex: 1; }
.step-num { display: inline-block; font-size: 12px; font-weight: 700; border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 12px; color: var(--muted); margin-bottom: 22px; background: #fff; }
.step-ic { display: flex; align-items: center; justify-content: center; width: 58px; height: 58px;
  background: #fff; border-radius: 18px; box-shadow: 0 10px 24px -12px rgba(60,45,30,.25); margin-bottom: 20px; }
.step-ic svg { width: 26px; height: 26px; }
.step h3 { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14px; max-width: 26ch; }
.step-arrow { align-self: flex-start; padding-top: 68px; color: var(--muted); font-size: 18px; flex: none; }

/* ---------- solutions ---------- */
.solutions { position: relative; background: var(--bg); }
.side-tags { position: absolute; left: 26px; top: 45%; display: flex; flex-direction: column; gap: 26px;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.solutions-inner { display: grid; grid-template-columns: 430px 1fr 250px; gap: 56px; align-items: center; }
.collage { position: relative; height: 480px; }
.collage img { border-radius: 20px; object-fit: cover; box-shadow: 0 24px 50px -20px rgba(60,45,30,.4); }
.col-main { position: absolute; left: 0; top: 0; width: 250px; height: 380px; }
.col-top { position: absolute; right: 40px; top: 10px; width: 130px; height: 120px; }
.col-mid { position: absolute; right: 0; top: 160px; width: 150px; height: 140px; }
.col-badge { position: absolute; left: 30px; bottom: 30px; background: #fff; border-radius: 14px;
  padding: 12px 18px; box-shadow: 0 20px 40px -14px rgba(60,45,30,.35); }
.solutions-copy h2 { font-size: clamp(32px, 3.4vw, 48px); margin-bottom: 16px; }
.solutions-lede { color: var(--muted); margin-bottom: 34px; max-width: 52ch; }
.use-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 40px; max-width: 460px; }
.use-item { display: flex; gap: 14px; align-items: flex-start; font-size: 14px; line-height: 1.35; }
.use-item .ic { opacity: .75; margin-top: 2px; }
.solutions-note { background: var(--card); border-radius: 18px; padding: 26px 24px;
  box-shadow: 0 24px 50px -24px rgba(60,45,30,.35); position: relative; }
.solutions-note p { font-family: var(--serif); font-size: 20px; margin-bottom: 14px; }
.solutions-note .muted { font-family: var(--sans); font-size: 13.5px; color: var(--muted); }
.round-btn { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px;
  border-radius: 50%; border: 1px solid var(--line); text-decoration: none; margin-top: 18px; font-size: 17px; }
.round-btn:hover { border-color: var(--ink); }

/* ---------- base ---------- */
.base { background: var(--bg2); }
.base-inner { display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 60px; align-items: center; }
.base-copy h2 { font-size: clamp(30px, 3.2vw, 44px); margin-bottom: 18px; }
.base-copy p { color: var(--muted); margin-bottom: 24px; max-width: 40ch; }
.text-link { font-weight: 800; font-size: 14.5px; text-decoration: underline; text-underline-offset: 4px; }
.base-visual { position: relative; }
.base-visual img { width: 100%; height: 340px; object-fit: cover; border-radius: 26px; }
.base-chip { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,.75); backdrop-filter: blur(8px);
  border-radius: 16px; padding: 14px 26px; font-weight: 800; font-size: 19px; letter-spacing: .06em;
  box-shadow: 0 20px 40px -16px rgba(50,40,30,.45); }
.base-dot { width: 18px; height: 18px; border-radius: 50%; background: var(--ink); }
.base-points { display: flex; flex-direction: column; gap: 30px; }
.point { display: flex; gap: 16px; align-items: center; font-size: 14.5px; }
.point .ic { width: 26px; height: 26px; opacity: .8; }
.point small { color: var(--muted); }

/* ---------- CTA ---------- */
.cta { padding: 30px 32px 90px; }
.cta-card { position: relative; max-width: var(--maxw); margin: 0 auto; border-radius: 28px; overflow: hidden;
  min-height: 300px; display: flex; align-items: center; padding: 56px 64px; }
.cta-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(30,22,16,.72) 0%, rgba(30,22,16,.35) 55%, rgba(30,22,16,.15) 100%); }
.cta-content { position: relative; color: #fff; flex: 1; }
.cta-content h2 { font-size: clamp(30px, 3.4vw, 46px); margin-bottom: 10px; }
.cta-content p:last-child { color: rgba(255,255,255,.8); font-size: 15px; }
.cta-actions { position: relative; display: flex; align-items: center; gap: 16px; }
.cta-or { color: rgba(255,255,255,.8); font-size: 14px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.footer-inner .brand-name { font-size: 16px; }
.footer-inner .brand-mark { font-size: 24px; }
.footer-note { color: var(--muted); font-size: 13px; flex: 1; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { text-decoration: none; font-size: 13.5px; font-weight: 600; color: var(--muted); }
.footer-links a:hover { color: var(--ink); }
.copyright { color: var(--muted); font-size: 12.5px; }

.toast { position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px); opacity: 0;
  background: var(--ink); color: #fff; padding: 12px 22px; border-radius: 12px; font-size: 14px; transition: .25s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 80px; }
  .proof-card { right: 10px; }
  .solutions-inner { grid-template-columns: 1fr; }
  .solutions-note { max-width: 320px; }
  .base-inner { grid-template-columns: 1fr; }
  .side-tags { display: none; }
}
@media (max-width: 900px) {
  .main-nav { position: fixed; inset: 64px 0 auto 0; background: var(--bg); flex-direction: column;
    align-items: center; gap: 22px; padding: 28px 0; border-bottom: 1px solid var(--line); display: none; }
  .main-nav.is-open { display: flex; }
  .menu-toggle { display: block; }
  .how-inner { grid-template-columns: 1fr; }
  .how-steps { border-left: 0; padding-left: 0; flex-direction: column; gap: 44px; }
  .step-arrow { display: none; }
  .scroll-hint { display: none; }
  .cta-card { flex-direction: column; align-items: flex-start; gap: 24px; padding: 40px 32px; }
}