:root {
  --bg: #070a14;
  --bg-2: #0d1322;
  --card: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf4;
  --muted: #97a0b5;
  --gold: #f7b733;
  --gold-bright: #ffd976;
  --gold-deep: #e08900;
  --ok: #4cd98a;
  --up: #5aa7ff;
  --radius: 16px;
  --font-head: "Space Grotesk", "Noto Sans SC", sans-serif;
  --font-body: "Inter", "Noto Sans SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-head); line-height: 1.2; }

a { color: inherit; text-decoration: none; }

img { display: block; }

/* ===== nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 14px 5vw;
  background: rgba(7, 10, 20, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--card-border);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; }
.brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: 0.28em;
  font-size: 15px;
}

.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; transition: color 0.2s; }
.nav-links a:hover { color: var(--gold-bright); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.lang-toggle {
  background: none;
  border: 1px solid var(--card-border);
  color: var(--muted);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font-body);
  transition: color 0.2s, border-color 0.2s;
}
.lang-toggle:hover { color: var(--gold-bright); border-color: var(--gold); }

/* ===== buttons ===== */
.btn {
  display: inline-block;
  border-radius: 12px;
  padding: 13px 26px;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-small { padding: 8px 16px; font-size: 13px; border-radius: 9px; }

.btn-primary {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  color: #1a1206;
  box-shadow: 0 4px 24px rgba(247, 183, 51, 0.25);
}
.btn-primary:hover { box-shadow: 0 6px 32px rgba(247, 183, 51, 0.4); }

.btn-ghost {
  border-color: var(--card-border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-bright); }

/* ===== hero ===== */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  padding: 96px 7vw 110px;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-glow {
  position: absolute;
  top: -180px;
  left: 30%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(247, 183, 51, 0.14) 0%, transparent 65%);
  pointer-events: none;
}

.badge {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
  border: 1px solid rgba(247, 183, 51, 0.35);
  background: rgba(247, 183, 51, 0.07);
  border-radius: 999px;
  padding: 7px 16px;
  margin-bottom: 26px;
}

.hero h1 {
  font-size: clamp(40px, 5.2vw, 68px);
  font-weight: 700;
  background: linear-gradient(120deg, #ffffff 30%, var(--gold-bright) 75%, var(--gold-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 22px;
}

.lead { color: var(--muted); font-size: 17.5px; max-width: 540px; margin-bottom: 32px; }

.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-note { margin-top: 22px; font-size: 13.5px; color: var(--gold); opacity: 0.85; }

/* report card */
.hero-card { position: relative; }

.report {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45), 0 0 60px rgba(247, 183, 51, 0.06);
  max-width: 420px;
  margin-left: auto;
}

.report-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.report-token { display: flex; align-items: center; gap: 12px; }
.report-token strong { font-size: 17px; display: block; }
.report-token small { color: var(--muted); font-size: 12px; }

.token-dot {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 18px rgba(247, 183, 51, 0.5);
}

.score-ring {
  --score: 86;
  width: 76px; height: 76px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(closest-side, var(--bg-2) 78%, transparent 79% 100%),
    conic-gradient(var(--gold) calc(var(--score) * 1%), rgba(255, 255, 255, 0.08) 0);
}
.score-num { font-family: var(--font-head); font-weight: 700; font-size: 21px; color: var(--gold-bright); }
.score-label { font-size: 8.5px; letter-spacing: 0.06em; color: var(--muted); text-transform: uppercase; }

.report-rows { list-style: none; }
.report-rows li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 13.5px;
  color: var(--muted);
}
.report-rows em { font-style: normal; font-weight: 600; font-size: 13px; white-space: nowrap; }
.report-rows .ok { color: var(--ok); }
.report-rows .up { color: var(--up); }

.report-foot {
  margin-top: 16px;
  font-size: 11.5px;
  color: var(--muted);
  opacity: 0.7;
  text-align: right;
}

/* ===== sections ===== */
.section { max-width: 1180px; margin: 0 auto; padding: 84px 6vw; }
.section-tight { padding-top: 30px; }

.section h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  margin-bottom: 14px;
}

.section-sub { color: var(--muted); max-width: 660px; margin-bottom: 44px; font-size: 16px; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover { border-color: rgba(247, 183, 51, 0.4); transform: translateY(-3px); }

.card-num {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 700;
  color: var(--gold-bright);
  margin-bottom: 12px;
}

.card-icon { font-size: 26px; margin-bottom: 14px; }

.card h3 { font-size: 17.5px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14px; }

/* ===== flywheel ===== */
.flywheel {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.fly-step {
  background: rgba(247, 183, 51, 0.08);
  border: 1px solid rgba(247, 183, 51, 0.3);
  color: var(--gold-bright);
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 500;
}

.fly-arrow { color: var(--muted); font-size: 17px; }
.fly-loop { color: var(--gold); font-size: 21px; }

/* ===== timeline ===== */
.timeline { list-style: none; position: relative; padding-left: 30px; max-width: 720px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(247, 183, 51, 0.08));
}

.timeline li { position: relative; padding: 0 0 38px 18px; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -30px; top: 7px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--gold);
  box-shadow: 0 0 14px rgba(247, 183, 51, 0.5);
}

.tl-chip {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 10px;
}
.tl-now { color: #1a1206; background: var(--gold); border-color: var(--gold); }

.timeline h3 { font-size: 19px; margin-bottom: 6px; }
.timeline p { color: var(--muted); font-size: 14.5px; max-width: 560px; }

/* ===== token ===== */
.token-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.token-grid h3 { font-size: 17px; margin-bottom: 12px; }
.token-grid h3 + p { margin-bottom: 26px; }
.token-grid p { color: var(--muted); font-size: 14.5px; }

.pledge { list-style: none; }
.pledge li {
  position: relative;
  padding: 8px 0 8px 26px;
  color: var(--muted);
  font-size: 14px;
}
.pledge li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--gold);
}

.fee-bar {
  display: flex;
  height: 46px;
  border-radius: 12px;
  overflow: hidden;
  margin: 18px 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
}
.fee-bar span { display: flex; align-items: center; justify-content: center; }
.fee-dev { background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep)); color: #1a1206; }
.fee-plat { background: rgba(255, 255, 255, 0.12); color: var(--text); }
.fee-user { background: rgba(90, 167, 255, 0.35); color: var(--text); }

.fee-legend { list-style: none; margin-bottom: 24px; }
.fee-legend li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  color: var(--muted);
  font-size: 13.5px;
}
.dot { width: 10px; height: 10px; border-radius: 3px; flex: none; transform: translateY(1px); }
.dot-dev { background: var(--gold); }
.dot-plat { background: rgba(255, 255, 255, 0.35); }
.dot-user { background: var(--up); }

.ca-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: rgba(0, 0, 0, 0.25);
  border: 1px dashed var(--card-border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--muted);
}
.ca-chip code { color: var(--gold-bright); font-size: 13px; }
.ca-chip .btn { margin-left: auto; }

/* ===== faq ===== */
.faq-list { max-width: 760px; }
.faq-list details {
  border: 1px solid var(--card-border);
  border-radius: 14px;
  background: var(--card);
  margin-bottom: 12px;
  padding: 18px 22px;
}
.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15.5px;
  list-style: none;
  position: relative;
  padding-right: 30px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0; top: -2px;
  font-size: 22px;
  color: var(--gold);
  transition: transform 0.2s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { margin-top: 12px; color: var(--muted); font-size: 14.5px; }

/* ===== footer ===== */
.footer {
  border-top: 1px solid var(--card-border);
  padding: 44px 6vw 56px;
  max-width: 1180px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: 13.5px; }
.footer-links a:hover { color: var(--gold-bright); }
.disclaimer { color: var(--muted); opacity: 0.65; font-size: 12.5px; max-width: 640px; }

/* ===== reveal animation ===== */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ===== responsive ===== */
@media (max-width: 1020px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 64px; gap: 40px; }
  .report { margin-left: 0; }
  .cards-3 { grid-template-columns: 1fr; }
  .token-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .cards-4 { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; text-align: center; }
}