/* ============================================================
   QOI — instrument design system
   ============================================================ */
:root {
  --bg: #0a0a0c;
  --bg-soft: #0f0f13;
  --ink: #e8e8ec;
  --ink-dim: rgba(232, 232, 236, 0.55);
  --ink-faint: rgba(232, 232, 236, 0.52);
  --signal: #00f0ff;
  --accent: #00c8ff;
  --accent2: #88e0ff;
  --line: rgba(255, 255, 255, 0.08);
  --glass: rgba(255, 255, 255, 0.03);
  --font-display: "Sora", sans-serif;
  --font-body: "JetBrains Mono", monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-snap: cubic-bezier(0.19, 1, 0.22, 1);
}

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

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--signal); color: #0a0a0c; }

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

/* ---------- progress bar ---------- */
.progress-bar {
  position: fixed; top: 0; left: 0; z-index: 100;
  height: 1px; width: 100%;
  background: var(--signal);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* ---------- grain + orbs ---------- */
.grain {
  position: fixed; inset: -5%;
  z-index: 90; pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 0.9s steps(4) infinite;
  will-change: transform;
}
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(3%, -2%); }
  75% { transform: translate(-3%, -3%); }
  100% { transform: translate(2%, 2%); }
}

.orb {
  position: fixed; z-index: 0; pointer-events: none;
  background: radial-gradient(circle closest-side, var(--orb-c), transparent 72%);
  will-change: transform;
}
.orb--a { --orb-c: rgba(0, 240, 255, 0.14); width: 60vw; height: 60vw; top: -20vw; right: -20vw; }
.orb--b { --orb-c: rgba(0, 200, 255, 0.16); width: 66vw; height: 66vw; top: 55vh; left: -24vw; }
.orb--c { --orb-c: rgba(136, 224, 255, 0.10); width: 48vw; height: 48vw; top: 145vh; right: -16vw; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 80;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(10, 10, 12, 0.65);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.nav__logo {
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.05rem; letter-spacing: 0.08em;
  display: flex; align-items: center; gap: 0.55rem;
}
.nav__logo-mark {
  width: 19px; height: 19px; display: block;
  filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.45));
}
.nav__logo-dim { color: var(--ink-faint); font-weight: 400; }
.nav__links { display: flex; gap: 2rem; font-size: 0.8rem; color: var(--ink-dim); letter-spacing: 0.04em; }
.nav__links a { position: relative; transition: color 0.25s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: var(--signal);
  transform: scaleX(0); transform-origin: 100% 50%;
  transition: transform 0.35s var(--ease-out);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: 0 50%; }

/* ---------- chain rail ---------- */
.chain-nav {
  position: fixed; right: clamp(1.1rem, 2.2vw, 2.4rem); top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  display: flex; flex-direction: column; align-items: flex-end; gap: 1.7rem;
  opacity: 0; pointer-events: none;
}
.chain-nav__line {
  position: absolute; top: 7px; bottom: 7px; right: 6.5px; width: 1px;
  background: var(--line); overflow: hidden;
}
.chain-nav__line-fill {
  position: absolute; inset: 0;
  background: var(--signal);
  transform: scaleY(0); transform-origin: 50% 0;
  opacity: 0.7;
}
.chain-nav__item { display: flex; align-items: center; gap: 0.8rem; }
.chain-nav__node {
  width: 14px; height: 14px; border-radius: 3px;
  border: 1px solid rgba(232, 232, 236, 0.22);
  background: rgba(10, 10, 12, 0.85);
  position: relative;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.chain-nav__node::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 3px; height: 3px; border-radius: 1px;
  background: var(--signal); opacity: 0; transition: opacity 0.3s;
}
.chain-nav__label {
  font-family: var(--font-body); font-size: 0.6rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faint); white-space: nowrap;
  opacity: 0; transform: translateX(6px);
  transition: opacity 0.25s, transform 0.25s, color 0.25s;
}
.chain-nav__item:hover .chain-nav__label { opacity: 1; transform: none; }
.chain-nav__item:hover .chain-nav__node { border-color: rgba(0, 240, 255, 0.5); }
.chain-nav__item.is-active .chain-nav__node {
  border-color: var(--signal);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.28);
}
.chain-nav__item.is-active .chain-nav__node::after { opacity: 1; }
.chain-nav__item.is-active .chain-nav__label { opacity: 0.85; transform: none; color: var(--signal); }
/* the rail sits outside the 1180px content column; below that it collides with content */
@media (max-width: 1260px) { .chain-nav { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-weight: 400;
  font-size: 0.82rem; letter-spacing: 0.06em;
  padding: 0.8rem 1.6rem; border-radius: 3px;
  border: 1px solid var(--line);
  position: relative; overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s var(--ease-snap), box-shadow 0.2s, border-color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--signal);
  color: #0a0a0c; border: none;
  box-shadow: 0 0 0 rgba(0, 240, 255, 0);
}
.btn--primary:hover { box-shadow: 0 0 28px rgba(0, 240, 255, 0.35); }
.btn--ghost { color: var(--ink); background: var(--glass); }
.btn--ghost:hover { border-color: rgba(0, 240, 255, 0.5); }
.btn--xl { padding: 1rem 2.4rem; font-size: 0.95rem; }
.btn--deny {
  background: transparent;
  color: var(--ink-dim);
  border-color: var(--line);
}
.btn--deny:hover { border-color: rgba(255, 80, 80, 0.5); color: #ffaaa0; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  padding-top: 6.5rem;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(52vmin 48vmin at 50% 52%, rgba(0, 240, 255, 0.05), transparent 70%);
  pointer-events: none;
}
.hero__canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
}
.hero__canvas--front { z-index: 65; }
.hero__canvas { opacity: 0.72; }
.hero__content {
  position: relative; z-index: 2;
  padding: 1.4rem 1.5rem 2rem;
  max-width: 920px; margin: auto 0;
  background: radial-gradient(80% 70% at 50% 50%, rgba(10,10,12,0.9) 0%, rgba(10,10,12,0.5) 50%, transparent 80%);
  border-radius: 4px;
}
.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--signal); margin-bottom: 1.6rem;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 6rem);
  font-weight: 600; line-height: 1.05; letter-spacing: -0.03em;
}
.hero__title-line { display: block; overflow: hidden; }
.hero__title-line--accent {
  background: linear-gradient(92deg, var(--signal) 10%, var(--accent) 55%, var(--accent2) 95%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__sub {
  margin: 1.8rem auto 0; max-width: 540px;
  color: var(--ink-dim); font-size: clamp(0.88rem, 1.3vw, 1rem);
}
.hero__actions { margin-top: 2.4rem; display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }

/* ---------- protocol trace (how it works) ----------
   agent --x402/MCP--> qoi core (policy + risk) --push--> phone.
   Instrument styling: hairlines, sharp corners, signal cyan. */
.flow {
  position: relative;
  display: flex; align-items: center; gap: 0.6rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background:
    radial-gradient(70% 130% at 50% -30%, rgba(0, 240, 255, 0.06), transparent 70%),
    rgba(0, 0, 0, 0.35);
  padding: 2.4rem 1.2rem 1.6rem;
  overflow: hidden;
  text-align: left;
}
.flow-tag {
  position: absolute; top: 0.7rem; right: 0.85rem;
  font-size: 0.58rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint);
  display: flex; align-items: center; gap: 0.4rem;
}
.flow-tag i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal); box-shadow: 0 0 8px var(--signal);
  animation: blip 2s ease-in-out infinite;
}
@keyframes blip { 50% { opacity: 0.3; } }

.fnode {
  position: relative; z-index: 1;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color 0.35s, box-shadow 0.35s;
}
.fnode.active {
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 0 0 34px rgba(0, 240, 255, 0.1);
}

/* agent terminal */
.f-agent { flex: 3; min-width: 0; padding: 0.65rem 0.75rem 0.75rem; }
.f-head { display: flex; align-items: center; gap: 0.45rem; margin-bottom: 0.55rem; }
.f-head .dots { display: flex; gap: 4px; }
.f-head .dots i { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,0.12); }
.f-title {
  font-size: 0.6rem; font-weight: 500; letter-spacing: 0.16em;
  color: var(--ink-faint); text-transform: uppercase;
}
.proto {
  margin-left: auto;
  font-size: 0.56rem; font-weight: 500; letter-spacing: 0.08em;
  color: var(--signal); background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 0.08rem 0.4rem; border-radius: 3px;
}
.term {
  font-size: 0.66rem; line-height: 1.8; color: var(--ink-dim);
  min-height: 7.4em; /* room for all 4 lines, keeps the loop from reflowing */
}
.t-line {
  opacity: 0; transform: translateY(3px); transition: opacity 0.3s, transform 0.3s;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.t-line.on { opacity: 1; transform: none; }
.t-line .amt { color: var(--ink); font-weight: 500; }
.t-line.ok { color: var(--signal); }
.caret {
  display: inline-block; width: 6px; height: 11px;
  background: var(--signal); vertical-align: -1px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* qoi core */
.f-core { flex: 0 0 auto; padding: 0.8rem 0.9rem 0.7rem; text-align: center; }
.core-badge {
  position: relative;
  width: 50px; height: 50px; margin: 0 auto 0.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--signal), var(--accent));
  display: grid; place-items: center;
  box-shadow: 0 6px 22px rgba(0, 240, 255, 0.25);
}
.core-badge svg { width: 24px; height: 24px; }
.core-badge::before, .core-badge::after {
  content: ""; position: absolute; inset: -8px;
  border-radius: 50%;
  border: 1px solid rgba(0, 240, 255, 0.4);
  opacity: 0;
}
.core-badge::after { inset: -16px; border-color: rgba(0, 240, 255, 0.2); }
.fnode.active .core-badge::before { animation: ping 1.4s cubic-bezier(0, 0, 0.2, 1) infinite; }
.fnode.active .core-badge::after { animation: ping 1.4s cubic-bezier(0, 0, 0.2, 1) 0.3s infinite; }
@keyframes ping { 0% { transform: scale(0.78); opacity: 0.9; } 100% { transform: scale(1.12); opacity: 0; } }
.core-name { font-family: var(--font-display); font-size: 0.62rem; font-weight: 600; letter-spacing: 0.14em; }
.core-sub {
  font-size: 0.5rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0.1rem 0 0.5rem;
}
.policy {
  list-style: none; margin: 0; padding: 0;
  font-size: 0.58rem; text-align: left;
  display: flex; flex-direction: column; gap: 0.22rem;
  color: var(--ink-faint);
}
.policy li { display: flex; align-items: center; gap: 0.4rem; transition: color 0.3s; white-space: nowrap; }
.policy li i {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid rgba(232, 232, 236, 0.3);
  display: grid; place-items: center;
  font-style: normal; font-size: 7px; line-height: 1;
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}
.policy li.on { color: var(--ink); }
.policy li.on i {
  background: var(--signal); border-color: var(--signal); color: #06131a;
  transform: scale(1.15);
}
.policy li.on i::before { content: "✓"; }
.policy li.hold.on { color: #ffd166; }
.policy li.hold.on i { background: #ffd166; border-color: #ffd166; }
.policy li.hold.on i::before { content: "!"; }

/* live risk assessment meter */
.risk { margin-top: 0.55rem; text-align: left; }
.risk-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 0.54rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.25rem;
}
.risk-head b { font-weight: 500; transition: color 0.3s; }
.risk-head b.low { color: #7dff9e; }
.risk-bar {
  height: 3px; border-radius: 2px;
  background: rgba(255, 255, 255, 0.08); overflow: hidden;
}
.risk-bar i {
  display: block; height: 100%; width: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--signal), #7dff9e);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
  transition: width 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.core-status {
  margin-top: 0.5rem;
  font-size: 0.54rem; font-weight: 500; letter-spacing: 0.14em;
  color: var(--ink-faint);
  padding: 0.16rem 0.5rem; border-radius: 2px;
  border: 1px solid var(--line);
  display: inline-block;
  transition: color 0.3s, border-color 0.3s;
}
.core-status.busy { color: #ffd166; border-color: rgba(255, 209, 102, 0.45); }
.core-status.good { color: #7dff9e; border-color: rgba(125, 255, 158, 0.45); }

/* links between nodes */
.flink { flex: 1; position: relative; height: 34px; min-width: 34px; max-width: 90px; }
.flink::before {
  content: ""; position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; margin-top: -0.5px;
  background: repeating-linear-gradient(90deg,
    rgba(0, 240, 255, 0.4) 0 6px, transparent 6px 13px);
  opacity: 0.35; transition: opacity 0.3s;
}
.flink.hot::before { opacity: 1; animation: dashflow 0.5s linear infinite; }
@keyframes dashflow { to { background-position: 13px 0; } }
.flink .label {
  position: absolute; left: 50%; top: -4px; transform: translateX(-50%);
  font-size: 0.52rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); white-space: nowrap;
}
.packet {
  position: absolute; top: 50%; left: 0%;
  width: 8px; height: 8px; margin: -4px 0 0 -4px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal), 0 0 26px rgba(0, 240, 255, 0.7);
  opacity: 0;
}
/* comet trail; orientation set by JS via data-dir (f/r x h/v) */
.packet::after { content: ""; position: absolute; opacity: 0.75; pointer-events: none; }
.packet[data-dir="fh"]::after {
  right: 100%; top: 50%; width: 26px; height: 2px; margin-top: -1px;
  background: linear-gradient(90deg, transparent, var(--signal));
}
.packet[data-dir="rh"]::after {
  left: 100%; top: 50%; width: 26px; height: 2px; margin-top: -1px;
  background: linear-gradient(270deg, transparent, var(--signal));
}
.packet[data-dir="fv"]::after {
  bottom: 100%; left: 50%; width: 2px; height: 26px; margin-left: -1px;
  background: linear-gradient(180deg, transparent, var(--signal));
}
.packet[data-dir="rv"]::after {
  top: 100%; left: 50%; width: 2px; height: 26px; margin-left: -1px;
  background: linear-gradient(0deg, transparent, var(--signal));
}

/* phone */
.f-phone { flex: 0 0 auto; background: none; border: none; }
.phone {
  width: 124px; height: 230px;
  border-radius: 20px;
  border: 2px solid #232733;
  background: #05070c;
  position: relative; overflow: hidden;
  transition: border-color 0.4s, box-shadow 0.4s;
}
.fnode.active .phone {
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 0 0 34px rgba(0, 240, 255, 0.12);
}
.phone.buzz { animation: buzz 0.55s ease; }
@keyframes buzz {
  0%, 100% { transform: none; }
  20% { transform: translateX(-2px) rotate(-0.6deg); }
  40% { transform: translateX(2px) rotate(0.6deg); }
  60% { transform: translateX(-1.5px); }
  80% { transform: translateX(1.5px); }
}
.phone::before { /* dynamic island */
  content: ""; position: absolute; top: 7px; left: 50%;
  width: 34px; height: 10px; margin-left: -17px;
  border-radius: 999px; background: #000;
  border: 1px solid rgba(255,255,255,0.07);
  z-index: 3;
}
.screen {
  position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 50% 0%, #0d1420, #05070c 70%);
  opacity: 0.45; transition: opacity 0.4s;
  padding: 2rem 0.5rem 0.5rem;
}
.screen.wake { opacity: 1; }
.p-time {
  text-align: center; font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  color: rgba(232, 232, 236, 0.85); margin-bottom: 0.55rem;
}
.notif {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 0.5rem 0.55rem;
  opacity: 0; transform: translateY(-14px) scale(0.96);
  transition: opacity 0.45s cubic-bezier(0.2, 0.9, 0.3, 1.2), transform 0.45s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
.notif.in { opacity: 1; transform: none; }
.notif-head { display: flex; justify-content: space-between; font-size: 0.5rem; color: var(--ink-faint); margin-bottom: 0.25rem; }
.notif-head b { color: var(--signal); font-weight: 500; }
.notif-body { font-size: 0.56rem; line-height: 1.45; color: rgba(232, 232, 236, 0.85); overflow-wrap: anywhere; }
.notif-body b { color: var(--ink); }
.notif-actions { display: flex; gap: 0.35rem; margin-top: 0.45rem; }
.n-btn {
  flex: 1; border-radius: 4px; border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06); color: rgba(232, 232, 236, 0.85);
  font-family: var(--font-body); font-size: 0.52rem; font-weight: 500; padding: 0.3rem 0;
  pointer-events: none;
  transition: background 0.25s, color 0.25s, transform 0.15s, border-color 0.25s;
}
.n-btn.approve.pressed {
  background: linear-gradient(135deg, var(--signal), var(--accent));
  border-color: transparent; color: #06131a;
  transform: scale(0.94);
}
.seal {
  position: absolute; left: 50%; top: 58%;
  transform: translate(-50%, -50%) scale(0.4); opacity: 0;
  font-size: 0.6rem; font-weight: 500; letter-spacing: 0.16em;
  color: var(--signal);
  border: 1px solid var(--signal); border-radius: 4px;
  padding: 0.32rem 0.6rem;
  background: rgba(4, 14, 20, 0.75);
  box-shadow: 0 0 22px rgba(0, 240, 255, 0.3);
  transition: opacity 0.35s, transform 0.45s cubic-bezier(0.2, 1.4, 0.4, 1);
}
.seal.in { opacity: 1; transform: translate(-50%, -50%) scale(1) rotate(-4deg); }
.seal::after { /* stamp shockwave */
  content: ""; position: absolute; inset: -4px;
  border-radius: 6px; border: 1px solid var(--signal);
  opacity: 0; pointer-events: none;
}
.seal.in::after { animation: shockwave 0.7s ease-out 0.1s; }
@keyframes shockwave {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* settlement sweep across the whole trace */
.sweep {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(105deg, transparent 32%, rgba(0, 240, 255, 0.08) 50%, transparent 68%);
  transform: translateX(-130%);
}
.sweep.go { animation: sweepgo 1.1s cubic-bezier(0.3, 0, 0.2, 1) forwards; }
@keyframes sweepgo { to { transform: translateX(130%); } }

/* synced step captions */
.flow-steps {
  list-style: none; margin: 1rem 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem;
}
.flow-steps li {
  font-size: 0.74rem; color: var(--ink-dim); line-height: 1.55;
  border: 1px solid var(--line); border-left: 2px solid var(--line);
  border-radius: 4px; padding: 0.6rem 0.75rem;
  opacity: 0.55; min-width: 0; overflow-wrap: anywhere;
  transition: opacity 0.35s, border-color 0.35s;
}
.flow-steps li b { color: var(--ink); display: block; font-size: 0.76rem; font-weight: 500; }
.flow-steps li.live { opacity: 1; border-left-color: var(--signal); }

/* stacked layout on small screens: links turn vertical */
@media (max-width: 700px) {
  .flow { flex-direction: column; padding: 2.4rem 1rem 1.4rem; }
  .f-agent { width: 100%; flex: none; }
  .flink { flex: none; width: 34px; height: 44px; max-width: none; }
  .flink::before {
    left: 50%; right: auto; top: 0; bottom: 0; width: 1px; height: auto;
    margin: 0 0 0 -0.5px;
    background: repeating-linear-gradient(180deg,
      rgba(0, 240, 255, 0.4) 0 6px, transparent 6px 13px);
  }
  @keyframes dashflow { to { background-position: 0 13px; } }
  .flink .label { top: 50%; left: auto; right: -8px; transform: translate(100%, -50%); }
  .packet { top: 0%; left: 50%; }
  .flow-steps { grid-template-columns: 1fr; }
}

/* split-line reveal helper */
.reveal-line { overflow: hidden; display: block; }
.reveal-line > span { display: inline-block; will-change: transform; }

/* ---------- sections ---------- */
.section { position: relative; z-index: 2; padding: clamp(6rem, 12vw, 10rem) 0; }

/* ---------- demo / protocol trace ---------- */
.demo { padding: clamp(4rem, 8vw, 7rem) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.demo__sub { color: var(--ink-dim); font-size: 0.92rem; max-width: 52ch; margin-top: 1.2rem; }
.demo__sub--tech { color: var(--ink-faint); font-size: 0.82rem; margin-top: 0.8rem; }
.demo .flow { margin-top: 2.6rem; }
.demo__copy .section__title { margin-bottom: 0; }
.section__inner { max-width: 1180px; margin: 0 auto; padding: 0 clamp(1.2rem, 4vw, 3rem); }
.section__eyebrow {
  font-family: var(--font-body); font-size: 0.72rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--signal); margin-bottom: 1.2rem;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 500; letter-spacing: -0.02em; line-height: 1.12;
  max-width: 680px; margin-bottom: 3.2rem;
}
.split-words .word { display: inline-block; will-change: transform, opacity; }

/* ---------- readout (was stats) ---------- */
.readout {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
/* 5 items: keep every wrap arrangement free of orphan cells */
@media (max-width: 1100px) {
  .readout { grid-template-columns: repeat(3, 1fr); }
  .readout__col:last-child { grid-column: span 2; }
}
@media (max-width: 640px) {
  .readout { grid-template-columns: repeat(2, 1fr); }
  .readout__col:last-child { grid-column: span 2; }
}
.readout__col {
  background: var(--bg-soft);
  padding: 1.6rem 1.4rem;
  transition: background 0.25s;
}
.readout__col:hover { background: rgba(255,255,255,0.03); }
.readout__label {
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.6rem;
}
.readout__value {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.4rem, 2.5vw, 2rem); line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}

/* ---------- panels (was cards) ---------- */
.panels {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.panel {
  position: relative;
  background: var(--bg-soft);
  padding: 2rem 1.8rem 2.4rem;
  overflow: hidden;
  transition: background 0.3s;
}
.panel:hover { background: rgba(255,255,255,0.025); }
.panel__id {
  font-family: var(--font-body); font-size: 0.65rem;
  letter-spacing: 0.15em; color: var(--signal);
  margin-bottom: 1.2rem;
}
.panel h3 {
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 500;
  margin-bottom: 0.6rem; letter-spacing: -0.01em;
}
.panel p { color: var(--ink-dim); font-size: 0.85rem; line-height: 1.65; }
.panel__bar {
  margin-top: 1.4rem;
  height: 2px;
  background: var(--line);
  overflow: hidden;
}
.panel__bar span {
  display: block; height: 100%;
  background: var(--signal);
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 1s var(--ease-out);
}
.panel:hover .panel__bar span { transform: scaleX(1); }

/* ---------- roadmap ---------- */
.roadmap { position: relative; z-index: 2; }
.roadmap__pin {
  height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden;
  padding: 0 clamp(1.2rem, 4vw, 3rem);
}
.roadmap__head { max-width: 1180px; margin: 0 auto 3rem; width: 100%; }
.roadmap__head .section__title { margin-bottom: 0; }
.roadmap__track {
  display: flex; gap: 1.2rem;
  width: max-content;
  will-change: transform;
  transform: translateZ(0);
  padding-left: max(calc((100vw - 1180px) / 2), 1.2rem);
}
.phase {
  position: relative;
  width: clamp(300px, 36vw, 460px);
  flex-shrink: 0;
  border: 1px solid var(--line); border-radius: 3px;
  padding: 2.2rem 2rem 2.6rem;
  background: rgba(255,255,255,0.02);
  overflow: hidden;
}
.phase__tag {
  font-family: var(--font-body); font-size: 0.68rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--signal);
}
.phase h3 {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 500;
  margin: 0.9rem 0 0.7rem;
}
.phase p { color: var(--ink-dim); font-size: 0.88rem; max-width: 34ch; line-height: 1.6; }
.phase__num {
  position: absolute; right: 1.4rem; top: 1rem;
  font-family: var(--font-display); font-size: 4rem; font-weight: 600;
  color: rgba(232, 232, 236, 0.04);
}
.roadmap__progress {
  max-width: 1180px; margin: 3rem auto 0; width: 100%;
  height: 1px; background: var(--line);
}
.roadmap__progress-fill {
  height: 100%; width: 100%;
  background: var(--signal);
  transform: scaleX(0); transform-origin: 0 50%;
}

/* ---------- team ---------- */
.team { border-top: 1px solid var(--line); }
.team__sub {
  color: var(--ink-dim); font-size: 0.95rem;
  max-width: 52ch; margin-top: 1.2rem; margin-bottom: 3rem;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  align-items: stretch;
  justify-items: stretch;
}
@media (max-width: 900px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .team-grid { grid-template-columns: 1fr; } }
.team-card {
  background: linear-gradient(160deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.8rem 1.5rem 2rem;
  display: flex; flex-direction: column;
  height: 100%;
  min-height: 260px;
  transition: transform 0.35s var(--ease-out), border-color 0.35s, box-shadow 0.35s;
  position: relative;
  overflow: hidden;
}
.team-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(300px circle at 50% 0%, rgba(0,240,255,0.08), transparent 65%);
  opacity: 0; transition: opacity 0.35s;
  pointer-events: none;
}
.team-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,240,255,0.25);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35), 0 0 30px rgba(0,240,255,0.06);
}
.team-card:hover::before { opacity: 1; }
.team-card__avatar {
  width: 64px; height: 64px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 1.25rem; font-weight: 600;
  color: var(--bg);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.18);
}
.team-card[data-index="1"] .team-card__avatar { background: linear-gradient(135deg, var(--signal), var(--accent)); }
.team-card[data-index="2"] .team-card__avatar { background: linear-gradient(135deg, var(--accent), var(--accent2)); }
.team-card[data-index="3"] .team-card__avatar { background: linear-gradient(135deg, #7d8cff, var(--signal)); }
.team-card[data-index="4"] .team-card__avatar { background: linear-gradient(135deg, var(--accent2), #a0a0ff); }
.team-card__line {
  position: absolute; top: 2.3rem; left: 5.5rem; right: 1.5rem; height: 1px;
  background: linear-gradient(90deg, rgba(0,240,255,0.35), transparent 80%);
  opacity: 0.5;
}
.team-card__name {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 500;
  margin-bottom: 0.3rem; letter-spacing: -0.01em;
  position: relative; z-index: 1;
}
.team-card__role {
  font-family: var(--font-body); font-size: 0.7rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--signal); margin-bottom: 1rem;
  position: relative; z-index: 1;
}
.team-card__exp {
  color: var(--ink-dim); font-size: 0.82rem;
  line-height: 1.6;
  margin-top: auto;
  padding-top: 1rem;
  position: relative; z-index: 1;
}

.footer__legal { line-height: 1.7; }

/* ---------- CTA ---------- */
.cta {
  position: relative; z-index: 2;
  padding: clamp(8rem, 16vw, 13rem) 1.5rem;
  text-align: center;
  background:
    radial-gradient(700px 360px at 50% 110%, rgba(0, 240, 255, 0.10), transparent 70%),
    radial-gradient(500px 280px at 50% -10%, rgba(0, 200, 255, 0.06), transparent 70%);
}
.cta__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 5rem); font-weight: 600; letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}
.cta__sub { color: var(--ink-dim); margin-bottom: 2.6rem; font-size: 1rem; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq-list { max-width: 760px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--glass);
  margin-bottom: 0.5rem;
  overflow: hidden;
  transition: border-color 0.25s;
}
.faq-item[open], .faq-item:hover { border-color: rgba(0, 240, 255, 0.3); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 0.85rem 1.1rem;
  font-size: 0.9rem; font-weight: 400; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; color: var(--signal); font-size: 1rem; flex-shrink: 0;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--signal); }
.faq-item div {
  padding: 0 1.1rem 0.95rem;
  font-size: 0.85rem; line-height: 1.65; color: var(--ink-dim);
}

/* ---------- CTA email capture ---------- */
.cta-form {
  display: flex; gap: 0.6rem; justify-content: center;
  max-width: 480px; margin: 0 auto;
}
.cta-form__input {
  flex: 1; min-width: 0;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font-family: var(--font-body); font-size: 0.82rem;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.cta-form__input::placeholder { color: var(--ink-faint); }
.cta-form__input:focus {
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.08);
}
.cta-form__btn { white-space: nowrap; }
.cta-form__note {
  margin-top: 0.9rem;
  font-size: 0.7rem; letter-spacing: 0.06em;
  color: var(--ink-faint);
}
.cta-form__note a { color: var(--ink-dim); text-decoration: underline; text-underline-offset: 2px; }
.cta-form__note a:hover { color: var(--signal); }
.cta-form__note.ok { color: var(--signal); }
.cta-form__note.err { color: #ffaaa0; }
@media (max-width: 520px) {
  .cta-form { flex-direction: column; }
  .cta-form__btn { width: 100%; }
}

/* ---------- footer ---------- */
.footer {
  position: relative; z-index: 2;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  padding: 2rem clamp(1.2rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
  color: var(--ink-faint); font-size: 0.8rem;
}
.footer__links { display: flex; gap: 1.6rem; }
.footer__links a { transition: color 0.25s; }
.footer__links a:hover { color: var(--signal); }

/* ---------- mobile menu ---------- */
.nav__burger {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px;
  background: var(--glass);
  border: 1px solid var(--line); border-radius: 3px;
  cursor: pointer; padding: 0 10px;
}
.nav__burger span {
  display: block; height: 1.5px; width: 100%;
  background: var(--ink);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 75;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 2.4rem;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0; pointer-events: none;
  visibility: hidden; /* removes links from tab order while closed */
  transition: opacity 0.3s var(--ease-out), visibility 0s 0.3s;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; visibility: visible; transition-delay: 0s; }
.mobile-menu__links { display: flex; flex-direction: column; align-items: center; gap: 1.3rem; }
.mobile-menu__links a {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 500; letter-spacing: -0.01em;
}
.mobile-menu__cta { min-width: 220px; }

/* ---------- responsive ---------- */
@media (max-width: 720px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .hero__title { font-size: clamp(2.2rem, 11vw, 3.2rem); }
}

@media (prefers-reduced-motion: reduce) {
  .grain { animation: none; }
}

@media (hover: none) {
  .grain { animation: none; }
}