/* ============================================================
   Heartwood — dark, art-directed (top-tier DeFi grade)
   ============================================================ */

:root {
  --bg: #070b09;
  --panel: rgba(255, 255, 255, 0.032);
  --panel-2: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.16);
  --ink: #eaf2ec;
  --ink-2: #9fb0a4;
  --ink-3: #5f6f64;
  --green: #33e37f;
  --green-deep: #0fae57;
  --teal: #2dd4bf;
  --gold: #f0c26a;
  --display: "Clash Display", "Inter", sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --r: 20px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15.5px;
  line-height: 1.65;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(51, 227, 127, 0.25); }

.wrap { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.wrap-narrow { width: min(780px, calc(100% - 48px)); }

/* ---------- background ---------- */
#aurora {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}
.noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

/* ---------- type ---------- */
h1, h2, h3 { font-family: var(--display); font-weight: 500; letter-spacing: -0.015em; line-height: 1.04; }
h1 em, h2 em, .cta em {
  font-style: normal;
  background: linear-gradient(95deg, var(--green) 0%, var(--teal) 60%, var(--gold) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin-bottom: 22px;
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, border-color 0.25s;
  white-space: nowrap;
}
.btn-lg { padding: 14px 30px; font-size: 0.98rem; border-radius: 14px; }
.btn-glow {
  background: var(--green);
  color: #04150b;
  box-shadow: 0 0 0 1px rgba(51, 227, 127, 0.4), 0 10px 34px -10px rgba(51, 227, 127, 0.55);
}
.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(51, 227, 127, 0.6), 0 16px 44px -10px rgba(51, 227, 127, 0.7);
}
.btn-line {
  color: var(--ink);
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.02);
}
.btn-line:hover { border-color: rgba(255, 255, 255, 0.35); transform: translateY(-2px); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 11, 9, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.nav-inner {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
  height: 76px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark { width: 24px; height: 24px; display: block; }
.nav-links { display: flex; gap: 30px; }
.nav-links a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.89rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.nav-doc { color: var(--ink-2); text-decoration: none; font-size: 0.89rem; font-weight: 500; }
.nav-doc:hover { color: var(--ink); }

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 110px;
  padding-bottom: 80px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.7rem, 5.2vw, 4.4rem);
  margin-bottom: 24px;
}
.hero-sub {
  color: var(--ink-2);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  max-width: 470px;
  margin-bottom: 34px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: clamp(40px, 5vw, 60px); }

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 22px 40px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.hm b {
  display: block;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  letter-spacing: -0.01em;
}
.hm span {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}

/* ---------- hero app mockup ---------- */
.hero-app {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.35s var(--ease);
  will-change: transform;
  padding-bottom: 88px;
}
.app-card {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.025));
  border: 1px solid var(--line-2);
  border-radius: 22px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.app-main { padding: 22px 22px 16px; max-width: 460px; margin-left: auto; }
.app-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.app-net {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-2);
}
.app-net i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(51, 227, 127, 0.8);
}
.app-addr {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
}
.app-worth {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 2px;
}
.app-worth span { display: block; font-size: 0.74rem; color: var(--ink-3); }
.app-worth b {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.9rem;
  letter-spacing: -0.01em;
}
.app-hf {
  font-family: var(--mono);
  font-size: 0.7rem !important;
  color: var(--green) !important;
  background: rgba(51, 227, 127, 0.1);
  border: 1px solid rgba(51, 227, 127, 0.3);
  border-radius: 999px;
  padding: 5px 12px;
}
.app-sec { padding: 6px 2px 10px; }
.app-sec h6 {
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.app-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
}
.app-row + .app-row { border-top: 1px solid var(--line); }
.app-nm { flex: 1; min-width: 0; }
.app-nm b { display: block; font-size: 0.88rem; font-weight: 600; line-height: 1.3; }
.app-nm small { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-3); }

.hero-app::before {
  content: "";
  position: absolute;
  inset: -12% -18% 0;
  background: radial-gradient(closest-side at 60% 40%, rgba(51, 227, 127, 0.16), transparent 70%);
  filter: blur(6px);
  z-index: -1;
  pointer-events: none;
}
.coin {
  width: 34px; height: 34px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, var(--c1, #666), var(--c2, #333));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 4px 10px -3px rgba(0, 0, 0, 0.5);
}
.coin svg { width: 62%; height: 62%; display: block; opacity: 0.96; }

.coin.sm { width: 30px; height: 30px; font-size: 0.66rem; }

.chip {
  font-family: var(--mono);
  font-size: 0.68rem;
  border-radius: 999px;
  padding: 5px 11px;
  white-space: nowrap;
}
.chip-apy { color: var(--green); background: rgba(51, 227, 127, 0.1); border: 1px solid rgba(51, 227, 127, 0.28); }
.chip-apr { color: var(--gold); background: rgba(240, 194, 106, 0.1); border: 1px solid rgba(240, 194, 106, 0.28); }

.app-modal {
  position: absolute;
  left: -14px;
  bottom: 0;
  width: 250px;
  padding: 18px;
  transform: translateZ(50px);
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.09);
}
.app-modal h6 {
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--body);
  margin-bottom: 12px;
}
.modal-input {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 13px;
  margin-bottom: 12px;
}
.modal-input span { font-family: var(--display); font-size: 1.15rem; font-weight: 500; }
.modal-input em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--green);
}
.modal-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--ink-3);
  padding: 4px 2px;
}
.modal-meta b { color: var(--ink); font-weight: 500; font-family: var(--mono); font-size: 0.74rem; }
.modal-btn {
  width: 100%;
  margin-top: 12px;
  padding: 10px 0;
  font-size: 0.86rem;
  cursor: default;
}
.float-chip {
  position: absolute;
  top: -16px;
  right: 6px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--green);
  background: rgba(7, 20, 13, 0.9);
  border: 1px solid rgba(51, 227, 127, 0.4);
  border-radius: 999px;
  padding: 7px 14px;
  box-shadow: 0 12px 30px -8px rgba(51, 227, 127, 0.35);
  animation: bob 5s ease-in-out infinite;
  transform: translateZ(70px);
}
@keyframes bob {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -9px; }
}
@media (prefers-reduced-motion: reduce) { .float-chip { animation: none; } }

@keyframes am { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .ghost-track { animation: none !important; } }

/* ---------- ghost band ---------- */
.ghost-band {
  overflow: hidden;
  padding: clamp(48px, 7vw, 90px) 0 0;
}
.ghost-track {
  display: flex;
  width: max-content;
  animation: am 60s linear infinite;
}
.ghost-track span {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(4rem, 10vw, 9rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.10);
  white-space: nowrap;
}

/* ---------- sections ---------- */
.section { padding: clamp(96px, 12vw, 160px) 0; }
.sec-head { margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head.row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
}
h2 { font-size: clamp(2.2rem, 4.6vw, 3.8rem); }
.sec-note { color: var(--ink-2); font-size: 0.95rem; max-width: 460px; }

/* ---------- spotlight cards (shared) ---------- */
.spot { position: relative; overflow: hidden; }
.spot::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(51, 227, 127, 0.08), transparent 65%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.spot:hover::before { opacity: 1; }

/* ---------- products ---------- */
.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: clamp(26px, 3vw, 38px);
  backdrop-filter: blur(8px);
  transition: border-color 0.35s, transform 0.35s var(--ease);
}
.panel:hover { border-color: var(--line-2); transform: translateY(-3px); }
.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 14px;
}
.panel h3 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.panel-rate { text-align: right; }
.panel-rate b {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  font-weight: 500;
  color: var(--green);
  text-shadow: 0 0 24px rgba(51, 227, 127, 0.35);
}
.panel-rate i { font-family: var(--mono); font-style: normal; font-size: 0.62rem; letter-spacing: 0.12em; color: var(--ink-3); text-transform: uppercase; }
.panel > p { color: var(--ink-2); font-size: 0.93rem; max-width: 440px; margin-bottom: 24px; }

.panel-list { border-top: 1px solid var(--line); margin-bottom: 22px; }
.pl-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}
.pl-row .ic {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.5rem;
  color: var(--ink-2);
  flex-shrink: 0;
}
.pl-row .nm { flex: 1; color: var(--ink); font-weight: 500; }
.pl-row .nm small { display: block; color: var(--ink-3); font-weight: 400; font-size: 0.72rem; }
.pl-row .rt { font-family: var(--mono); font-size: 0.84rem; color: var(--green); }
.pl-row .rt.neutral { color: var(--ink-2); }

.panel-link, .scard-link {
  color: var(--green);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
}
.panel-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.inst-bar {
  margin-top: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px clamp(26px, 3vw, 38px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  flex-wrap: wrap;
}
.inst-bar h4 { font-family: var(--display); font-size: 1.25rem; font-weight: 500; margin-bottom: 4px; }
.inst-bar p { color: var(--ink-2); font-size: 0.9rem; max-width: 560px; }

/* ---------- markets ---------- */
.mkt {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  overflow-x: auto;
  backdrop-filter: blur(8px);
}
.mkt-head, .mkt-row {
  display: grid;
  grid-template-columns: 2.3fr 1fr 1fr 0.9fr 1.2fr 1.1fr;
  gap: 16px;
  align-items: center;
  padding: 0 26px;
  min-width: 880px;
}
.mkt-head {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  padding-block: 15px;
  border-bottom: 1px solid var(--line);
}
.mkt-head span:not(:first-child) { text-align: right; }
.mkt-row {
  padding-block: 17px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  transition: background 0.2s;
}
.mkt-row:last-child { border-bottom: none; }
.mkt-row:hover { background: rgba(51, 227, 127, 0.045); }
.mkt-row > :not(:first-child) { text-align: right; }

.m-asset { display: flex; align-items: center; gap: 14px; }
.m-ic {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.54rem;
  color: var(--ink-2);
  flex-shrink: 0;
}
.m-name b { display: block; font-weight: 600; font-size: 0.93rem; line-height: 1.3; }
.m-name span { font-size: 0.76rem; color: var(--ink-3); }
.m-apy { font-family: var(--mono); color: var(--green); text-shadow: 0 0 18px rgba(51, 227, 127, 0.3); }
.m-apr { font-family: var(--mono); color: var(--ink); }
.m-plain { font-family: var(--mono); color: var(--ink-2); }

.m-util { display: inline-flex; align-items: center; gap: 10px; justify-content: flex-end; font-family: var(--mono); color: var(--ink-2); }
.u-track { width: 56px; height: 3px; border-radius: 2px; background: rgba(255,255,255,0.1); overflow: hidden; }
.u-track span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--green-deep), var(--green)); transition: width 1.2s var(--ease) 0.3s; }

/* ---------- risk engine ---------- */
.engine-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}
.engine-left { position: sticky; top: 120px; }
.engine-list { display: flex; flex-direction: column; }
.eng {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
.eng:last-child { border-bottom: 1px solid var(--line); }
.eng-no {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 500;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.22);
  line-height: 1;
  min-width: 64px;
  transition: -webkit-text-stroke-color 0.4s, color 0.4s;
}
.eng:hover .eng-no { color: var(--green); -webkit-text-stroke-color: transparent; }
.eng h4 { font-family: var(--display); font-weight: 500; font-size: 1.2rem; margin-bottom: 6px; }
.eng p { color: var(--ink-2); font-size: 0.91rem; max-width: 520px; }

/* ---------- big metrics ---------- */
.bigband { padding: clamp(40px, 6vw, 80px) 0; border-block: 1px solid var(--line); background: rgba(255,255,255,0.015); }
.bigband-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.big b {
  display: block;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.6rem, 5.4vw, 4.4rem);
  letter-spacing: -0.02em;
  background: linear-gradient(95deg, var(--ink) 30%, var(--green) 110%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.05;
}
.big span {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}

/* ---------- security ---------- */
.sec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.scard {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 170px;
  transition: border-color 0.35s, transform 0.35s var(--ease);
}
.scard:hover { border-color: var(--line-2); transform: translateY(-3px); }
.scard-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}
.scard h4 { font-family: var(--display); font-weight: 500; font-size: 1.15rem; flex: 1; }
.scard h4 b { color: var(--green); font-weight: 500; }
.scard-link { font-size: 0.84rem; }
.scard.bounty {
  border-color: rgba(51, 227, 127, 0.35);
  background: linear-gradient(150deg, rgba(51, 227, 127, 0.1), rgba(51, 227, 127, 0.02));
  box-shadow: 0 0 44px -18px rgba(51, 227, 127, 0.35);
}

.sec-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 30px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}
.sec-foot i { width: 4px; height: 4px; border-radius: 50%; background: var(--ink-3); }

/* ---------- faq ---------- */
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 4px;
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.15rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  transition: color 0.2s;
}
.faq summary:hover { color: var(--green); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--green);
  transition: transform 0.35s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease);
}
.faq details[open] > div { grid-template-rows: 1fr; }
.faq details > div > p { overflow: hidden; padding: 0 4px; color: var(--ink-2); font-size: 0.93rem; max-width: 620px; }
.faq details[open] > div > p { padding-bottom: 24px; }

/* ---------- cta ---------- */
.cta {
  padding: clamp(120px, 16vw, 220px) 0;
  text-align: center;
  position: relative;
}
.cta h2 { font-size: clamp(2.6rem, 6vw, 5rem); margin-bottom: 38px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.25);
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 64px 0 48px;
}
.foot-brand p { color: var(--ink-3); font-size: 0.86rem; margin-top: 16px; max-width: 280px; }
.foot-col h5 {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  margin-bottom: 16px;
  font-weight: 500;
}
.foot-col a {
  display: block;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 4px 0;
  transition: color 0.2s;
}
.foot-col a:hover { color: var(--green); }
.foot-x {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 500;
  transition: color 0.2s;
}
.foot-x svg { width: 15px; height: 15px; }
.foot-x:hover { color: var(--green); }
.foot-legal { border-top: 1px solid var(--line); padding: 22px 0 30px; }
.foot-legal p { font-size: 0.7rem; line-height: 1.8; color: var(--ink-3); max-width: 900px; }

.foot-ghost {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(5rem, 16vw, 15rem);
  line-height: 0.78;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.06);
  user-select: none;
  margin-top: 10px;
  transform: translateY(12%);
}

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .hero { padding-bottom: 110px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-app { max-width: 480px; margin-top: 12px; padding-bottom: 0; }
  .app-main { margin-left: 0; }
  .app-modal { position: relative; left: 0; bottom: 0; margin: -26px 18px 0 auto; }
  .duo { grid-template-columns: 1fr; }
  .engine-grid { grid-template-columns: 1fr; }
  .engine-left { position: static; }
  .sec-grid { grid-template-columns: 1fr 1fr; }
  .bigband-grid { grid-template-columns: 1fr; gap: 26px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .hero-metrics { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 680px) {
  .nav-links, .nav-doc { display: none; }
  .sec-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Sub pages
   ============================================================ */
body.sub {
  background-image: radial-gradient(900px 480px at 70% -10%, rgba(51, 227, 127, 0.07), transparent 70%);
  background-repeat: no-repeat;
}
.page-hero { padding: 150px 0 26px; }
.page-hero h1 { font-size: clamp(2.3rem, 4.6vw, 3.6rem); margin-bottom: 14px; }
.page-hero .lede { color: var(--ink-2); font-size: 1.02rem; max-width: 620px; }
.page-body { padding: 34px 0 clamp(80px, 10vw, 120px); }

/* generic parameter table */
.ptable { width: 100%; border-collapse: collapse; }
.ptable th {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-2);
}
.ptable td { padding: 13px 14px; border-bottom: 1px solid var(--line); font-size: 0.88rem; color: var(--ink-2); }
.ptable td b { color: var(--ink); font-weight: 600; }
.ptable tr:last-child td { border-bottom: none; }
.ptable .num { font-family: var(--mono); font-size: 0.84rem; }
.tbl-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; overflow-x: auto; }

/* docs */
.docs-grid { display: grid; grid-template-columns: 230px 1fr; gap: clamp(32px, 4vw, 72px); align-items: start; }
.docs-side { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 2px; }
.docs-side a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.86rem;
  padding: 8px 14px;
  border-left: 1px solid var(--line);
  transition: color 0.2s, border-color 0.2s;
}
.docs-side a:hover { color: var(--ink); border-left-color: var(--green); }
.docs-body { min-width: 0; max-width: 720px; }
.docs-body section { padding: 26px 0 34px; border-bottom: 1px solid var(--line); scroll-margin-top: 110px; }
.docs-body section:last-child { border-bottom: none; }
.docs-body h2 { font-size: 1.7rem; margin-bottom: 14px; }
.docs-body h3 { font-family: var(--body); font-weight: 600; font-size: 1.02rem; margin: 22px 0 8px; }
.docs-body p, .docs-body li { color: var(--ink-2); font-size: 0.94rem; }
.docs-body ul, .docs-body ol { padding-left: 22px; margin: 10px 0; }
.docs-body li { margin: 6px 0; }
.docs-body .tbl-card { margin: 16px 0; }
.docs-body code, .formula-block {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2px 7px;
  color: var(--ink);
}
.formula-block { display: block; padding: 16px 18px; margin: 14px 0; line-height: 1.9; }

/* app page */
.app-banner {
  margin-top: 118px;
  background: rgba(240, 194, 106, 0.08);
  border-block: 1px solid rgba(240, 194, 106, 0.25);
  padding: 10px 0;
}
.app-banner .wrap { font-size: 0.8rem; color: var(--gold); font-family: var(--mono); }
.app-layout { display: grid; grid-template-columns: 1fr 330px; gap: 24px; align-items: start; padding: 130px 0 90px; }
.app-tbar { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 18px; }
.app-tbar h1 { font-size: 1.9rem; }
.btn-sm { padding: 8px 16px; font-size: 0.8rem; border-radius: 10px; }
.mkt-row .row-actions { display: flex; gap: 8px; justify-content: flex-end; }
.side-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.side-card h4 { font-family: var(--body); font-weight: 600; font-size: 0.98rem; margin-bottom: 14px; }
.side-empty { color: var(--ink-3); font-size: 0.86rem; text-align: center; padding: 26px 8px; border: 1px dashed var(--line-2); border-radius: 12px; }
.side-rows .app-row { padding: 10px 0; }
.side-kv { display: flex; justify-content: space-between; padding: 9px 2px; border-bottom: 1px dashed var(--line); font-size: 0.84rem; color: var(--ink-3); }
.side-kv b { color: var(--ink); font-family: var(--mono); font-weight: 500; }
.side-kv:last-child { border-bottom: none; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: #0d1712;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  padding: 12px 20px;
  font-size: 0.86rem;
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s var(--ease);
  z-index: 90;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* status chips (governance) */
.chip-ok { color: var(--green); background: rgba(51, 227, 127, 0.1); border: 1px solid rgba(51, 227, 127, 0.28); }
.chip-live { color: var(--gold); background: rgba(240, 194, 106, 0.1); border: 1px solid rgba(240, 194, 106, 0.28); }

/* generic card grid (community / institutions) */
.gcards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.gcard { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.gcard h4 { font-family: var(--display); font-weight: 500; font-size: 1.2rem; margin-bottom: 8px; }
.gcard p { color: var(--ink-2); font-size: 0.9rem; }
.gcard .handle { display: inline-block; margin-top: 14px; font-family: var(--mono); font-size: 0.78rem; color: var(--green); background: rgba(51, 227, 127, 0.08); border: 1px solid rgba(51, 227, 127, 0.25); border-radius: 999px; padding: 5px 12px; }
.gcard .soon { display: inline-block; margin-top: 14px; margin-left: 8px; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--ink-3); }

.steps-line { counter-reset: step; margin: 18px 0; }
.step-row { display: flex; gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.step-row:last-child { border-bottom: none; }
.step-row::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--display);
  font-size: 1.3rem;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.3);
  min-width: 40px;
}
.step-row b { display: block; margin-bottom: 3px; }
.step-row p { color: var(--ink-2); font-size: 0.9rem; }

.back-home { margin-top: 40px; }

@media (max-width: 1000px) {
  .docs-grid { grid-template-columns: 1fr; }
  .docs-side { position: static; flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .docs-side a { border-left: none; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 0.78rem; }
  .app-layout { grid-template-columns: 1fr; }
  .gcards { grid-template-columns: 1fr; }
}