/* ============================================================
   MIND CHAIN — site stylesheet
   Dark, technical, premium. No external resources. Offline-safe.
   ============================================================ */

:root {
  --bg: #0b0d11;
  --bg-raise: #10131a;
  --surface: #121620;
  --surface-2: #171c27;
  --line: rgba(232, 234, 238, 0.08);
  --line-strong: rgba(232, 234, 238, 0.16);
  --text: #e9ebef;
  --muted: #a6adba;
  --dim: #737b8a;
  --gold: #d2ab60;
  --gold-soft: rgba(210, 171, 96, 0.13);
  --gold-line: rgba(210, 171, 96, 0.35);
  --good: #7fbf8e;
  --warn: #c98a5e;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 18px;
  --radius-lg: 26px;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
  }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(210, 171, 96, 0.28); color: #fff; }

/* ---- skip link ---- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--gold);
  color: #14110a;
  padding: 0.6rem 1.1rem;
  border-radius: 0 0 12px 0;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---- typography ---- */
h1, h2, h3, h4 {
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.12;
  text-wrap: balance;
}
h1 { font-size: clamp(2.35rem, 6.4vw, 4.3rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.45rem); }
p { max-width: 66ch; }
a { color: var(--text); }
a:hover { color: #fff; }
strong { font-weight: 640; color: #f2f4f7; }
em { color: var(--muted); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-line);
  background: var(--gold-soft);
  border-radius: 999px;
  padding: 0.38em 1em;
  margin-bottom: 1.4rem;
  white-space: nowrap;
}
.eyebrow::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
  flex: none;
}

.lead { font-size: clamp(1.08rem, 1.8vw, 1.28rem); color: var(--muted); }
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.mono { font-family: var(--mono); }

/* ---- layout primitives ---- */
.wrap {
  width: min(1160px, calc(100% - 2.5rem));
  margin-inline: auto;
}

section { padding-block: clamp(4.5rem, 10vw, 8.5rem); }

.section-head { margin-bottom: clamp(2.2rem, 5vw, 4rem); max-width: 44rem; }
.section-head p { margin-top: 1rem; }

hr.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* ---- nav ---- */
.nav-shell {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  display: flex;
  justify-content: center;
  padding: 0.9rem 1rem 0;
  pointer-events: none;
}
.nav {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  width: min(1160px, 100%);
  padding: 0.55rem 0.6rem 0.55rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(13, 15, 20, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-right: auto;
}
.brand svg { display: block; }
.brand .brand-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--dim);
  border-left: 1px solid var(--line-strong);
  padding-left: 0.6rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.4s var(--ease), background 0.4s var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; background: rgba(255, 255, 255, 0.06); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.55rem 0.5rem 1.05rem;
  border-radius: 999px;
  background: var(--gold);
  color: #171207;
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease);
}
.nav-cta:hover { filter: brightness(1.07); color: #171207; }
.nav-cta:active { transform: scale(0.97); }
.nav-cta .pip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.55rem; height: 1.55rem;
  border-radius: 50%;
  background: rgba(23, 18, 7, 0.14);
  transition: transform 0.5s var(--ease);
}
.nav-cta:hover .pip { transform: translate(2px, -1px); }

.nav-burger {
  display: none;
  position: relative;
  width: 2.6rem; height: 2.6rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}
.nav-burger span {
  position: absolute;
  left: 50%; top: 50%;
  width: 1.05rem; height: 1.5px;
  background: var(--text);
  transition: transform 0.55s var(--ease);
}
.nav-burger span:nth-child(1) { transform: translate(-50%, calc(-50% - 4px)); }
.nav-burger span:nth-child(2) { transform: translate(-50%, calc(-50% + 4px)); }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translate(-50%, -50%) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { transform: translate(-50%, -50%) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 2rem 3rem;
  background: rgba(10, 12, 15, 0.9);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu ul { list-style: none; display: grid; gap: 0.4rem; }
.mobile-menu a {
  display: block;
  font-size: clamp(1.7rem, 7vw, 2.4rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
  padding: 0.45rem 0;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.mobile-menu.open a { opacity: 1; transform: translateY(0); }
.mobile-menu.open li:nth-child(1) a { transition-delay: 0.06s; }
.mobile-menu.open li:nth-child(2) a { transition-delay: 0.11s; }
.mobile-menu.open li:nth-child(3) a { transition-delay: 0.16s; }
.mobile-menu.open li:nth-child(4) a { transition-delay: 0.21s; }
.mobile-menu.open li:nth-child(5) a { transition-delay: 0.26s; }
.mobile-menu.open li:nth-child(6) a { transition-delay: 0.31s; }
.mobile-menu .menu-note {
  margin-top: 2.2rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--dim);
  text-transform: uppercase;
}

@media (max-width: 860px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: block; }
}

/* ---- hero ---- */
.hero {
  position: relative;
  padding-top: clamp(8rem, 16vw, 11.5rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.hero-bg::before {
  content: "";
  position: absolute;
  top: -22rem; right: -14rem;
  width: 52rem; height: 52rem;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(210, 171, 96, 0.13), transparent 70%);
}
.hero-bg::after {
  content: "";
  position: absolute;
  bottom: -26rem; left: -18rem;
  width: 56rem; height: 56rem;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(94, 116, 160, 0.1), transparent 70%);
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 10%, rgba(0,0,0,0.5), transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 10%, rgba(0,0,0,0.5), transparent 75%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}
.hero h1 { margin-bottom: 1.4rem; }
.hero h1 .accent { color: var(--gold); }
.hero .lead { margin-bottom: 2.2rem; }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.72rem 0.72rem 0.72rem 1.35rem;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 640;
  text-decoration: none;
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease), border-color 0.5s var(--ease);
}
.btn:active { transform: scale(0.97); }
.btn .pip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem; height: 1.8rem;
  border-radius: 50%;
  transition: transform 0.5s var(--ease);
}
.btn:hover .pip { transform: translate(2px, -1px); }
.btn-solid { background: var(--gold); color: #171207; }
.btn-solid:hover { filter: brightness(1.08); color: #171207; }
.btn-solid .pip { background: rgba(23, 18, 7, 0.14); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); }
.btn-ghost:hover { border-color: rgba(232, 234, 238, 0.34); }
.btn-ghost .pip { background: rgba(255, 255, 255, 0.07); }

/* receipt artifact */
.bezel {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.024);
  border-radius: var(--radius-lg);
  padding: 7px;
}
.bezel-core {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius-lg) - 7px);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
.receipt-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.receipt-head .status {
  color: var(--good);
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
}
.receipt-head .status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--good);
}
.receipt-body { padding: 1.05rem 1.15rem 1.2rem; }
.receipt-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.42rem 0;
  border-bottom: 1px dashed rgba(232, 234, 238, 0.07);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.receipt-row:last-child { border-bottom: none; }
.receipt-row .k { color: var(--dim); flex: none; }
.receipt-row .v { color: var(--text); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.receipt-row .v.gold { color: var(--gold); }

.hero-stats {
  margin-top: clamp(3rem, 7vw, 5rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}
.stat {
  padding: 1.3rem 1.4rem;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: none; }
.stat .n {
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}
.stat .l { font-size: 0.82rem; color: var(--dim); margin-top: 0.25rem; }

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat { border-top: 1px solid var(--line); }
  .stat:nth-child(-n+2) { border-top: none; }
}
@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 1rem 0.9rem; }
}

/* ---- epochs strip (what it is) ---- */
.epochs {
  display: grid;
  grid-template-columns: 1fr 1fr 1.35fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.epoch {
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border-left: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
}
.epoch:first-child { border-left: none; }
.epoch.now { background: linear-gradient(160deg, rgba(210, 171, 96, 0.08), rgba(210, 171, 96, 0.02)); }
.epoch .year {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--dim);
}
.epoch.now .year { color: var(--gold); }
.epoch h3 { margin: 0.65rem 0 0.4rem; }
.epoch p { font-size: 0.95rem; color: var(--muted); }
@media (max-width: 860px) {
  .epochs { grid-template-columns: 1fr; }
  .epoch { border-left: none; border-top: 1px solid var(--line); }
  .epoch:first-child { border-top: none; }
}

.what-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}
.what-grid .sticky-col { position: sticky; top: 110px; }
.claim-list { display: grid; gap: 1rem; }
.claim {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  background: rgba(255, 255, 255, 0.018);
  transition: border-color 0.5s var(--ease), transform 0.5s var(--ease);
}
.claim:hover { border-color: var(--gold-line); transform: translateY(-2px); }
.claim h3 { font-size: 1.08rem; margin-bottom: 0.45rem; display: flex; align-items: baseline; gap: 0.7rem; }
.claim h3 .idx { font-family: var(--mono); font-size: 0.72rem; color: var(--gold); letter-spacing: 0.08em; }
.claim p { font-size: 0.97rem; color: var(--muted); }
@media (max-width: 960px) {
  .what-grid { grid-template-columns: 1fr; }
  .what-grid .sticky-col { position: static; }
}

/* ---- ladder ---- */
.ladder {
  position: relative;
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(2rem, 5vw, 3.5rem);
}
.ladder::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 10px; bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-line), var(--line) 80%);
}
.tier {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
}
.tier-badge {
  position: relative;
  z-index: 1;
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--gold);
  background: var(--bg-raise);
  border: 1px solid var(--gold-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.tier-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.018);
  padding: clamp(1.25rem, 3vw, 1.8rem);
  max-width: 56rem;
}
.tier-card h3 { margin-bottom: 0.4rem; }
.tier-card .tier-sub {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.8rem;
}
.tier-card p { color: var(--muted); font-size: 0.99rem; }
.tier-card .tier-note {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px dashed rgba(232, 234, 238, 0.09);
  font-size: 0.88rem;
  color: var(--dim);
}
@media (min-width: 961px) {
  .tier:nth-child(even) .tier-card { margin-left: clamp(0rem, 6vw, 5rem); }
}

.ladder-close {
  margin-top: clamp(2rem, 5vw, 3rem);
  border-left: 2px solid var(--gold-line);
  padding: 0.3rem 0 0.3rem 1.4rem;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 46rem;
}
.ladder-close strong { color: var(--gold); font-weight: 640; }

/* ---- planes ---- */
.planes {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
}
.plane {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.3rem, 2.6vw, 1.7rem);
  background: rgba(255, 255, 255, 0.018);
  transition: border-color 0.5s var(--ease);
}
.plane:hover { border-color: var(--line-strong); }
.plane .plane-tag {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.7rem;
  display: block;
}
.plane h3 { font-size: 1.12rem; margin-bottom: 0.5rem; }
.plane p { font-size: 0.95rem; color: var(--muted); }
.plane ul { margin: 0.7rem 0 0 1.1rem; font-size: 0.92rem; color: var(--muted); display: grid; gap: 0.3rem; }
.plane-fabric { grid-column: span 12; background: linear-gradient(140deg, rgba(94, 116, 160, 0.09), rgba(255, 255, 255, 0.015) 55%); }
.plane-kernel { grid-column: span 7; background: linear-gradient(160deg, rgba(210, 171, 96, 0.07), rgba(255, 255, 255, 0.015) 60%); }
.plane-contracts { grid-column: span 5; }
.plane-cxi { grid-column: span 12; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 1.5rem; align-items: center; }
@media (max-width: 860px) {
  .plane-kernel, .plane-contracts { grid-column: span 12; }
  .plane-cxi { grid-template-columns: 1fr; }
}
.kernel-list { list-style: none; margin: 1rem 0 0 !important; display: grid; gap: 0 !important; }
.kernel-list li {
  padding: 0.6rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 0.8rem;
  font-size: 0.92rem;
}
.kernel-list li .k { font-family: var(--mono); font-size: 0.74rem; color: var(--dim); letter-spacing: 0.06em; padding-top: 0.15em; }
@media (max-width: 520px) {
  .kernel-list li { grid-template-columns: 1fr; gap: 0.15rem; }
}

/* ---- economics ---- */
.econ-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
}
.econ-cell {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3.4vw, 2.3rem);
  background: rgba(255, 255, 255, 0.018);
}
.econ-cell.full { grid-column: 1 / -1; }
.econ-cell h3 { margin-bottom: 0.7rem; }
.econ-cell p { color: var(--muted); font-size: 0.99rem; }
.econ-cell p + p { margin-top: 0.8rem; }
.hold-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--warn);
  border: 1px solid rgba(201, 138, 94, 0.4);
  border-radius: 999px;
  padding: 0.28em 0.85em;
  margin-bottom: 0.9rem;
}
@media (max-width: 860px) { .econ-grid { grid-template-columns: 1fr; } }

.kt-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.4rem;
}
.kt {
  border-top: 1px solid var(--line-strong);
  padding-top: 0.9rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.kt .kt-id { font-family: var(--mono); font-size: 0.72rem; color: var(--gold); letter-spacing: 0.1em; display: block; margin-bottom: 0.3rem; }
@media (max-width: 700px) { .kt-strip { grid-template-columns: 1fr; } }

/* ---- roadmap ---- */
.roadmap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  counter-reset: stage;
}
.stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem 1.6rem;
  background: rgba(255, 255, 255, 0.018);
  counter-increment: stage;
}
.stage::before {
  content: "0" counter(stage);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--dim);
}
.stage h3 { margin: 0.6rem 0 0.5rem; font-size: 1.15rem; }
.stage p { font-size: 0.92rem; color: var(--muted); }
.stage .gate {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px dashed rgba(232, 234, 238, 0.09);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
  line-height: 1.55;
}
.stage .gate::before { content: "GATE — "; color: var(--gold); letter-spacing: 0.08em; }
.stage.live { border-color: var(--gold-line); background: linear-gradient(170deg, rgba(210, 171, 96, 0.07), rgba(255, 255, 255, 0.015) 55%); }
.stage.live::before { color: var(--gold); }
@media (max-width: 1000px) { .roadmap { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .roadmap { grid-template-columns: 1fr; } }
.roadmap-note {
  margin-top: 1.6rem;
  font-size: 0.92rem;
  color: var(--dim);
  max-width: 60ch;
}

/* ---- community ---- */
.community {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.community-links { display: grid; gap: 0.8rem; }
.community-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.018);
  transition: border-color 0.5s var(--ease), transform 0.5s var(--ease);
}
.community-links a:hover { border-color: var(--gold-line); transform: translateY(-2px); }
.community-links .cl-name { font-weight: 640; }
.community-links .cl-sub { display: block; font-size: 0.85rem; color: var(--dim); font-weight: 400; margin-top: 0.15rem; }
.community-links .arrow { font-family: var(--mono); color: var(--dim); flex: none; }
.token-note {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 3vw, 2rem);
  background: rgba(255, 255, 255, 0.018);
  font-size: 0.95rem;
  color: var(--muted);
}
.token-note h3 { margin-bottom: 0.7rem; }
.token-note p + p { margin-top: 0.75rem; }
.token-note .fine { font-size: 0.84rem; color: var(--dim); }
@media (max-width: 860px) { .community { grid-template-columns: 1fr; } }

/* ---- footer ---- */
footer {
  border-top: 1px solid var(--line);
  padding: clamp(2.5rem, 6vw, 4rem) 0 2.5rem;
  background: var(--bg-raise);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4rem);
  margin-bottom: 2.5rem;
}
.footer-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; margin-bottom: 0.9rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  list-style: none;
  align-content: start;
}
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.footer-links a:hover { color: #fff; }
.disclaimer {
  border-top: 1px solid var(--line);
  padding-top: 1.8rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--dim);
}
.disclaimer p { max-width: none; }
.disclaimer p + p { margin-top: 0.7rem; }
.disclaimer strong { color: var(--muted); font-weight: 600; }
.footer-meta {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--dim);
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---- reveal on scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   Litepaper layout
   ============================================================ */
.paper-hero {
  padding-top: clamp(8rem, 15vw, 11rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.paper-hero .lead { margin-top: 1.3rem; }
.paper-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.8rem;
  margin-top: 2rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.paper-layout {
  display: grid;
  grid-template-columns: 15.5rem minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}
.paper-toc {
  position: sticky;
  top: 100px;
  align-self: start;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  padding-right: 0.5rem;
}
.paper-toc .toc-title {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.9rem;
}
.paper-toc ol { list-style: none; display: grid; gap: 0.1rem; }
.paper-toc a {
  display: block;
  padding: 0.34rem 0.75rem;
  border-left: 1px solid var(--line);
  font-size: 0.86rem;
  color: var(--dim);
  text-decoration: none;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.paper-toc a:hover { color: var(--text); }
.paper-toc a.active { color: var(--gold); border-left-color: var(--gold); }

.paper-body { max-width: 46rem; }
.paper-body section {
  padding-block: 0 clamp(3rem, 6vw, 4.5rem);
  scroll-margin-top: 110px;
}
.paper-body h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1.2rem;
  padding-top: 0.5rem;
}
.paper-body h2 .sec-n {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 0.7rem;
}
.paper-body h3 { font-size: 1.15rem; margin: 1.8rem 0 0.6rem; }
.paper-body p { margin-bottom: 1rem; color: #c8cdd6; }
.paper-body p.opener { font-size: 1.13rem; color: var(--text); }
.paper-body ul, .paper-body ol { margin: 0 0 1.1rem 1.25rem; color: #c8cdd6; display: grid; gap: 0.45rem; }
.paper-body blockquote {
  margin: 1.6rem 0;
  padding: 1.2rem 1.5rem;
  border-left: 2px solid var(--gold-line);
  background: rgba(210, 171, 96, 0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.1rem;
  color: var(--text);
}
.paper-body blockquote .attr { display: block; margin-top: 0.6rem; font-size: 0.8rem; font-family: var(--mono); color: var(--dim); }
.paper-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0 1.4rem;
  font-size: 0.88rem;
}
.paper-body th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 500;
  padding: 0.5rem 0.9rem 0.5rem 0;
  border-bottom: 1px solid var(--line-strong);
}
.paper-body td {
  padding: 0.6rem 0.9rem 0.6rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  vertical-align: top;
}
.paper-body td:first-child { color: var(--text); white-space: nowrap; }
.callout {
  margin: 1.4rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.4rem;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.93rem;
}
.callout .callout-tag {
  display: block;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.55rem;
  color: var(--gold);
}
.callout.hold { border-color: rgba(201, 138, 94, 0.35); background: rgba(201, 138, 94, 0.05); }
.callout.hold .callout-tag { color: var(--warn); }
.callout p { margin-bottom: 0.5rem; }
.callout p:last-child { margin-bottom: 0; }

.table-scroll { overflow-x: auto; }

@media (max-width: 960px) {
  .paper-layout { grid-template-columns: minmax(0, 1fr); }
  .paper-body { min-width: 0; max-width: none; }
  .paper-toc {
    position: static;
    max-height: none;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.1rem 1.2rem;
    background: rgba(255, 255, 255, 0.018);
  }
  .paper-toc ol { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .paper-toc ol { grid-template-columns: 1fr; }
}

/* back-to-top */
.to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 20;
  width: 2.8rem; height: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(13, 15, 20, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--muted);
  text-decoration: none;
  font-family: var(--mono);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), visibility 0.5s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { color: #fff; border-color: rgba(232, 234, 238, 0.4); }