/* GrowthRouter. Brand from thoufeekxlabs.com (lime #d4ff00, ink #111, Space Grotesk / Inter / JetBrains Mono),
   laid out on a light framed grid. */
:root {
  /* Component aliases. Every value lives in tokens.css. */
  --paper: var(--background-base);
  --panel: var(--surface);
  --line: var(--border-muted);
  --line-2: var(--border-loud);
  --text: var(--text-default);
  --muted: var(--text-muted);
  --dim: var(--text-faint);
  --lime: var(--action-bg);
  --lime-soft: var(--signal-tint);
  --lime-ink: var(--action-text);
  --green: var(--text-accent);
  --ink: var(--surface-dark);
  --ink-line: var(--night-line);
  --ink-text: var(--night-text);
  --ink-muted: var(--night-muted);
  --ink-dim: var(--night-dim);
  --frame: var(--frame-max);
  --pad: var(--frame-pad);
  --ease: var(--ease-out);
  --display: var(--font-display);
  --body: var(--font-body);
  --mono: var(--font-mono);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0; background: var(--paper); color: var(--text);
  font: 400 1rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, p, ol, ul, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
::selection { background: var(--lime); color: var(--lime-ink); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; text-wrap: balance; }
p { text-wrap: pretty; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--lime); color: var(--lime-ink); padding: .5rem .9rem; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }
.muted { color: var(--dim); }
.accent { display: block; color: var(--green); }
.soft { color: var(--dim); }
.hl { color: var(--lime); }

/* ---------- the frame: rails + crosshairs ---------- */
.frame {
  position: relative; width: 100%; max-width: var(--frame); margin-inline: auto;
  border-inline: 1px solid var(--line);
}
.band { position: relative; border-top: 1px solid var(--line); }
.band > .frame::before, .band > .frame::after {
  /* crosshair where the band line meets each rail */
  content: ""; position: absolute; top: -5px; width: 9px; height: 9px; z-index: 2;
  background:
    linear-gradient(var(--line-2), var(--line-2)) center / 1px 100% no-repeat,
    linear-gradient(var(--line-2), var(--line-2)) center / 100% 1px no-repeat;
}
.band > .frame::before { left: -5px; }
.band > .frame::after { right: -5px; }
@media (max-width: 1160px) { .frame { border-inline-color: transparent; } .band > .frame::before, .band > .frame::after { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  height: 44px; padding: 0 1.15rem;
  background: var(--lime); color: var(--lime-ink);
  font: 600 var(--text-sm)/1 var(--body); text-decoration: none;
  border: 1px solid var(--action-edge); border-radius: 10px; cursor: pointer;
  box-shadow: 0 1px 0 rgb(255 255 255 / .45) inset, 0 0 24px -6px var(--signal-40);
  transition: background-color .15s ease, transform .15s var(--ease);
}
.btn:hover { background: var(--action-hover); }
.btn:active { transform: scale(.98); }
.btn-sm { height: 36px; padding: 0 .9rem; font-size: var(--text-sm); border-radius: 9px; }
.btn-block { width: 100%; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 20; background: rgb(17 17 17 / .82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 2rem; height: 64px; padding-inline: var(--pad); }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; font: 600 var(--text-md)/1 var(--display); letter-spacing: -.015em; }
.brand-mark { width: 26px; height: 26px; }
.nav { display: flex; gap: 1.6rem; margin-left: auto; font-size: var(--text-sm); }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }
@media (max-width: 880px) { .nav { display: none; } .top-in .btn { margin-left: auto; } }

/* ---------- labels ---------- */
.counter { font: 400 var(--text-micro)/1 var(--mono); color: var(--dim); letter-spacing: .02em; }
.counter b { font-weight: 500; color: var(--green); margin-right: .6rem; }
.slash { display: inline-flex; align-items: center; gap: .6rem; font: 500 var(--text-xs)/1 var(--body); color: var(--text); padding-bottom: .6rem; border-bottom: 1px solid var(--line); }
.slash::before { content: "//"; color: var(--line-2); font-family: var(--mono); }
.slash::after { content: "\\\\"; color: var(--line-2); font-family: var(--mono); }
.planned { font: 500 var(--text-micro)/1 var(--body); color: var(--lime); background: var(--signal-8); border: 1px solid var(--signal-24); padding: .3rem .55rem; border-radius: 6px; }

/* ---------- hero ---------- */
.hero { border-top: 0; }
.hero-in {
  text-align: center; padding: clamp(4rem, 9vw, 7rem) var(--pad) clamp(3.5rem, 7vw, 5.5rem);
  background-image:
    linear-gradient(to right, var(--border-faint) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-faint) 1px, transparent 1px);
  background-size: 74px 74px; background-position: center top;
  -webkit-mask-image: none;
}
.hero-in::selection { background: var(--lime); }
.hero-in > * { position: relative; }
/* fade the grid toward the centre so the copy stays clean */
.hero-in { --fade: radial-gradient(ellipse 52% 60% at 50% 45%, var(--paper) 40%, rgb(17 17 17 / 0) 100%); }
.hero-in::before { content: ""; position: absolute; inset: 0; background: var(--fade); pointer-events: none; }

.gutter-tag { position: absolute !important; font: 400 var(--text-label)/1 var(--mono); color: var(--dim); background: var(--paper); padding: .15rem .25rem; }
.gt-l1 { left: 1.25rem; top: 3.3rem; } .gt-l2 { left: 1.25rem; bottom: 4.2rem; }
.gt-r1 { right: 1.25rem; top: 3.3rem; } .gt-r2 { right: 1.25rem; bottom: 4.2rem; }
@media (max-width: 760px) { .gutter-tag { display: none; } }
.spark { position: absolute !important; top: 6.4rem; width: 14px; height: 14px; }
.spark::before, .spark::after { content: ""; position: absolute; left: 50%; top: 50%; background: var(--green); border-radius: 2px; translate: -50% -50%; }
.spark::before { width: 2px; height: 14px; } .spark::after { width: 14px; height: 2px; }
.sp-l { left: 17%; } .sp-r { right: 17%; }
@media (max-width: 760px) { .spark { display: none; } }

.chip { display: inline-flex; align-items: center; gap: .55rem; font-size: var(--text-xs); color: var(--muted); background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: .4rem .8rem .4rem .65rem; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px var(--signal-16); }
.display { margin: 1.6rem auto 0; max-width: 17ch; font-size: var(--text-hero); line-height: 1.02; letter-spacing: -.04em; }
.lede { margin: 1.4rem auto 0; max-width: 36em; color: var(--muted); font-size: clamp(1.0313rem, .6vw + .85rem, 1.1875rem); line-height: 1.55; }

.waitlist { margin: 2.25rem auto 0; max-width: 560px; text-align: left; }
.wl-box { display: flex; align-items: center; gap: .5rem; padding: .4rem .4rem .4rem 1rem; background: var(--panel); border: 1px solid var(--line-2); border-radius: 14px; box-shadow: var(--shadow-input); transition: border-color .15s, box-shadow .15s; }
.wl-box:focus-within { border-color: var(--lime); box-shadow: 0 0 0 4px var(--signal-16); }
.wl-icon { width: 18px; height: 18px; color: var(--dim); flex: 0 0 auto; }
.wl-box input { flex: 1; min-width: 0; height: 44px; border: 0; background: transparent; font: 400 1rem var(--body); color: var(--text); }
.wl-box input:focus { outline: none; }
.wl-box input::placeholder { color: var(--dim); }
.wl-foot { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; margin-top: .75rem; padding-inline: .25rem; }
.wl-chips { display: flex; gap: .4rem; flex-wrap: wrap; }
.wl-chips span { font-size: var(--text-micro); color: var(--muted); border: 1px solid var(--line); background: var(--panel); border-radius: 7px; padding: .25rem .5rem; }
.form-note { font-size: var(--text-xs); color: var(--dim); }
.form-note.is-ok { color: var(--green); }
.form-note.is-err { color: var(--text-error); }
.form-note a { color: var(--text); }
@media (max-width: 520px) {
  .wl-box { flex-wrap: wrap; padding: .5rem; }
  .wl-icon { display: none; }
  .wl-box input { flex-basis: 100%; padding-inline: .6rem; }
  .wl-box .btn { flex: 1 1 100%; }
}

/* ---------- section scaffolding ---------- */
.sec-top { display: flex; align-items: center; height: 56px; padding-inline: var(--pad); border-bottom: 1px solid var(--line); position: relative; }
.sec-top::before { content: ""; position: absolute; left: -1px; top: 18px; bottom: 18px; width: 2px; background: var(--green); }
.center-head { text-align: center; padding: clamp(3rem, 7vw, 5rem) var(--pad) clamp(2.25rem, 5vw, 3.5rem); display: flex; flex-direction: column; align-items: center; }
.center-head .h2 { margin-top: 1.4rem; }
.center-head .sec-sub { margin-top: 1rem; }
.h2 { font-size: var(--text-h2); line-height: 1.06; letter-spacing: -.035em; max-width: 20ch; }
.sec-sub { color: var(--muted); max-width: 34em; }
.display-md { font-size: var(--text-h1); line-height: 1.03; letter-spacing: -.04em; max-width: 16ch; }

/* ---------- trace split ---------- */
.split-head { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); }
.sh-copy { padding: clamp(2.5rem, 5vw, 4rem) var(--pad); display: flex; flex-direction: column; gap: 1.4rem; border-right: 1px solid var(--line); }
.sh-copy .h2 { font-size: clamp(1.7rem, 2.8vw, 2.4rem); }
@media (max-width: 920px) { .split-head { grid-template-columns: 1fr; } .sh-copy { border-right: 0; border-bottom: 1px solid var(--line); } }

.trace {
  margin: clamp(1.25rem, 3vw, 2rem);
  background: var(--ink); color: var(--ink-text);
  border-radius: 16px; padding: 0 1.1rem .9rem;
  box-shadow: 0 30px 60px -30px rgb(0 0 0 / .8); border: 1px solid var(--line);
}
.trace-head { display: flex; align-items: center; gap: .9rem; height: 50px; border-bottom: 1px solid var(--ink-line); font: 500 var(--text-xs)/1 var(--mono); }
.trace-dots { display: inline-flex; gap: 6px; } .trace-dots i { width: 10px; height: 10px; border-radius: 50%; background: #2c2c2a; }
.trace-id { color: var(--ink-text); } .trace .muted { color: var(--ink-dim); }
.trace-tag { margin-left: auto; color: var(--ink-muted); border: 1px solid var(--ink-line); padding: .35rem .6rem; border-radius: 999px; font-size: var(--text-micro); }
.trace-rows { position: relative; padding: .8rem 0 .3rem; }
.trace-rows::before {
  content: ""; position: absolute; left: calc(.3rem + 5px); top: 1.35rem; bottom: 1.5rem; width: 2px;
  background: linear-gradient(var(--lime) var(--fill, 8%), var(--ink-line) var(--fill, 8%));
}
.row { position: relative; display: grid; grid-template-columns: 4.9rem minmax(0, 1fr); gap: .75rem; padding: .62rem .3rem .62rem 1.85rem; font-size: var(--text-sm); line-height: 1.45; color: var(--ink-dim); transition: color .45s ease; }
.row::before { content: ""; position: absolute; left: .3rem; top: .85rem; width: 12px; height: 12px; border-radius: 50%; background: var(--ink); border: 2px solid var(--ink-line); transition: background-color .35s, border-color .35s; }
.row-k { font: 500 var(--text-micro)/1.8 var(--mono); }
.row.is-done { color: var(--ink-text); } .row.is-done .row-k { color: var(--lime); }
.row.is-done::before { background: var(--lime); border-color: var(--lime); }
.row.is-waiting { color: var(--ink-text); }
.row.is-waiting::before { border-color: var(--lime); }
@media (prefers-reduced-motion: no-preference) { .row.is-waiting::before { animation: ping 1.8s ease-out infinite; } }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgb(213 255 0 / .5); } 100% { box-shadow: 0 0 0 10px rgb(213 255 0 / 0); } }
.approve-wait { display: inline-flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.approve-done { display: none; }
.row[data-step="approve"].is-done .approve-wait { display: none; }
.row[data-step="approve"].is-done .approve-done { display: inline; }
.approve-btn { height: 32px; padding: 0 .95rem; border: 0; border-radius: 8px; background: var(--lime); color: var(--lime-ink); font: 600 var(--text-xs)/1 var(--body); cursor: pointer; transition: background-color .15s, transform .15s var(--ease); }
.approve-btn:hover { background: #e3ff4d; } .approve-btn:active { transform: scale(.96); }
.trace-cap { padding-top: .8rem; border-top: 1px solid var(--ink-line); font-size: var(--text-micro); color: var(--ink-dim); }
.trace.is-replay .trace-cap::after { content: " Press approve to run it again."; }
@media (max-width: 520px) {
  .trace { margin: 1rem; padding-inline: .8rem; }
  .row { grid-template-columns: 1fr; gap: .05rem; padding-left: 1.7rem; }
  .row::before { top: .78rem; } .row-k { line-height: 1.5; }
}

/* ---------- loop ---------- */
.loop { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.loop li { padding: 1.75rem 1.4rem 2rem; border-left: 1px solid var(--line); background: var(--paper); }
.loop li:first-child { border-left: 0; }
.loop-gate { background: var(--panel) !important; box-shadow: inset 0 3px 0 var(--lime); }
.loop-n { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--panel); font: 500 var(--text-micro)/1 var(--mono); color: var(--muted); }
.loop-gate .loop-n { background: var(--lime); border-color: var(--action-edge); color: var(--lime-ink); }
.loop h3 { margin-top: 1rem; font-size: var(--text-md); letter-spacing: -.02em; }
.loop p { margin-top: .45rem; font-size: var(--text-sm); color: var(--muted); }
@media (max-width: 960px) {
  .loop { grid-template-columns: 1fr 1fr; }
  .loop li { border-left: 0; border-bottom: 1px solid var(--line); }
  .loop li:nth-child(even) { border-left: 1px solid var(--line); }
  .loop li:last-child { border-bottom: 0; }
}
@media (max-width: 560px) { .loop { grid-template-columns: 1fr; } .loop li:nth-child(even) { border-left: 0; } }

/* ---------- steps + code ---------- */
.steps { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); border-top: 1px solid var(--line); }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.steps-list { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
@media (max-width: 900px) { .steps-list { border-right: 0; border-bottom: 1px solid var(--line); } }
.step { position: relative; flex: 1; display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: start; text-align: left; padding: 1.4rem var(--pad); background: transparent; color: var(--muted); border: 0; border-bottom: 1px solid var(--line); cursor: pointer; font: inherit; transition: background-color .2s; }
.step:last-child { border-bottom: 0; }
.step::before { content: ""; position: absolute; left: -1px; top: 0; bottom: 0; width: 2px; background: transparent; }
.step:hover { background: var(--background-lighter); }
.step[aria-selected="true"] { background: var(--panel); }
.step[aria-selected="true"]::before { background: var(--green); }
.step strong { display: block; font: 600 1rem/1.3 var(--display); color: var(--text); }
.step-d { display: block; margin-top: .3rem; font-size: var(--text-sm); line-height: 1.5; }
.step-n { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; border: 1px solid var(--line-2); font: 500 var(--text-micro)/1 var(--mono); background: var(--panel); }
.step[aria-selected="true"] .step-n { background: var(--lime); color: var(--lime-ink); border-color: var(--action-edge); }

.term { display: flex; flex-direction: column; min-width: 0; background: var(--surface-dark); }
.term-bar { display: flex; align-items: center; gap: 1rem; height: 46px; padding: 0 1rem; border-bottom: 1px solid var(--line); }
.term-dots { display: inline-flex; gap: 6px; } .term-dots i { width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--line-2); }
.term-title { margin-left: auto; font: 400 var(--text-micro)/1 var(--mono); color: var(--dim); }
.copy { background: var(--surface-raised); color: var(--muted); border: 1px solid var(--line); border-radius: 8px; padding: .4rem .7rem; font: 500 var(--text-micro)/1 var(--body); cursor: pointer; }
.copy:hover { color: var(--text); border-color: var(--line-2); }
.term-body { flex: 1; overflow-x: auto; }
.term-body pre { margin: 0; padding: 1.4rem 1.5rem 1.6rem; font: 400 var(--text-xs)/1.8 var(--mono); color: var(--code-text); }
@media (max-width: 520px) { .term-body pre { font-size: var(--text-micro); padding: 1.1rem; } }
.c { color: var(--code-comment); } .t { color: var(--code-tag); } .a { color: var(--code-attr); } .s { color: var(--code-string); } .k { color: var(--text); font-weight: 500; } .f { color: var(--code-fn); } .p { color: var(--green); }

.tab-strip { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.tab-strip span { display: flex; flex-direction: column; align-items: center; gap: .2rem; padding: .9rem; font-size: var(--text-sm); color: var(--text); border-left: 1px solid var(--line); }
.tab-strip span:first-child { border-left: 0; }
.tab-strip small { font: 400 var(--text-label)/1 var(--mono); color: var(--dim); }

/* ---------- agent ready / compare ---------- */
.agent { display: grid; grid-template-columns: 1fr 1fr; }
.agent-col { padding: clamp(2.5rem, 5vw, 3.75rem) var(--pad); }
.agent-col + .agent-col { border-left: 1px solid var(--line); }
@media (max-width: 900px) { .agent { grid-template-columns: 1fr; } .agent-col + .agent-col { border-left: 0; border-top: 1px solid var(--line); } }
.lead-line { font-size: clamp(1.0625rem, 1.2vw + .5rem, 1.25rem); line-height: 1.45; color: var(--dim); max-width: 30em; }
.lead-line b { font-weight: 500; color: var(--text); }
.mini { margin-top: 1.75rem; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.mini-bar { display: flex; align-items: center; gap: .3rem; padding: .5rem; border-bottom: 1px solid var(--line); }
.mini-tab { font-size: var(--text-xs); color: var(--dim); padding: .35rem .65rem; border-radius: 7px; }
.mini-tab.is-on { background: var(--surface-raised); color: var(--text); border: 1px solid var(--line); }
.mini-bar .planned { margin-left: auto; }
.mini-body { padding: 1.1rem 1.2rem 1.3rem; font: 400 var(--text-xs)/1.75 var(--mono); color: var(--code-text); }
.vs { margin-top: 1.75rem; border-top: 1px solid var(--line); }
.vs li { display: grid; grid-template-columns: 9.5rem 1fr; gap: 1rem; padding: .95rem 0; border-bottom: 1px solid var(--line); font-size: var(--text-sm); }
.vs span { color: var(--dim); font-size: var(--text-sm); }
.vs b { font-weight: 500; }
@media (max-width: 520px) { .vs li { grid-template-columns: 1fr; gap: .2rem; } }

/* ---------- cases ---------- */
.cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.case { display: flex; flex-direction: column; align-items: flex-start; gap: .5rem; padding: 2rem var(--pad) 2.25rem; border-left: 1px solid var(--line); }
.case:first-child { border-left: 0; background: var(--panel); }
.case h3 { font-size: 1.5rem; letter-spacing: -.025em; }
.case p { color: var(--muted); font-size: var(--text-sm); flex: 1; }
.case-state { margin-top: 1rem; font-size: var(--text-xs); color: var(--muted); border: 1px dashed var(--line-2); border-radius: 8px; padding: .4rem .7rem; }
.case-state.is-next { color: var(--lime-ink); background: var(--lime); border: 1px solid var(--action-edge); }
@media (max-width: 860px) { .cases { grid-template-columns: 1fr; } .case { border-left: 0; border-bottom: 1px solid var(--line); } .case:last-child { border-bottom: 0; } }

/* ---------- open source + pricing ---------- */
.os { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
.os-a { padding: clamp(2.75rem, 6vw, 4.5rem) var(--pad); border-right: 1px solid var(--line); }
.os-a .sec-sub { margin-top: 1.2rem; }
@media (max-width: 900px) { .os { grid-template-columns: 1fr; } .os-a { border-right: 0; border-bottom: 1px solid var(--line); } }
.ticks { margin-top: 1.75rem; display: grid; gap: .8rem; font-size: var(--text-base); }
.ticks li { position: relative; padding-left: 1.8rem; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .3em; width: 18px; height: 18px; border-radius: 5px; background: var(--lime); }
.ticks li::after { content: ""; position: absolute; left: 5px; top: calc(.3em + 5px); width: 8px; height: 4px; border-left: 2px solid var(--lime-ink); border-bottom: 2px solid var(--lime-ink); transform: rotate(-45deg); }
.price { margin: clamp(1.25rem, 3vw, 2rem); padding: clamp(1.5rem, 3vw, 2rem); background: radial-gradient(120% 80% at 100% 0%, var(--signal-8), transparent 60%), var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-card); scroll-margin-top: 100px; align-self: center; }
.price-label { display: flex; justify-content: space-between; align-items: center; font: 600 var(--text-md)/1.3 var(--display); }
.price-num { margin-top: 1.1rem; font: 600 3.75rem/1 var(--display); letter-spacing: -.04em; }
.cur { font-size: .5em; vertical-align: .72em; color: var(--dim); margin-right: .05em; }
.per { font: 400 var(--text-sm)/1 var(--body); letter-spacing: 0; color: var(--muted); margin-left: .3rem; }
.price-desc { margin-top: 1rem; color: var(--muted); font-size: var(--text-sm); }
.price .btn { margin-top: 1.5rem; }
.price-fine { margin-top: .8rem; text-align: center; font-size: var(--text-micro); color: var(--dim); }

/* ---------- faq ---------- */
.faq-grid { display: grid; grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr); }
.faq-grid > .h2 { padding: clamp(2.5rem, 5vw, 3.75rem) var(--pad); border-right: 1px solid var(--line); }
.faq { padding: clamp(1.25rem, 3vw, 2.25rem) var(--pad); }
@media (max-width: 860px) { .faq-grid { grid-template-columns: 1fr; } .faq-grid > .h2 { border-right: 0; padding-bottom: 0; } }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.2rem 0; font: 600 var(--text-md)/1.35 var(--display); letter-spacing: -.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: 0 0 auto; display: grid; place-items: center; width: 26px; height: 26px; border: 1px solid var(--line-2); border-radius: 7px; font: 400 1rem/1 var(--mono); color: var(--muted); background: var(--panel); transition: transform .25s var(--ease); }
.faq details[open] summary::after { content: "–"; }
.faq summary:hover::after { border-color: var(--green); color: var(--green); }
.faq details p { padding: 0 2.5rem 1.35rem 0; color: var(--muted); max-width: 40em; font-size: var(--text-base); }

/* ---------- closing + footer ---------- */
.close-in { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1.5rem; padding: clamp(4rem, 9vw, 6.5rem) var(--pad);
  background: radial-gradient(50% 90% at 50% 110%, var(--signal-16), transparent 70%); }
.foot-in { display: flex; justify-content: space-between; align-items: center; gap: 1rem 2rem; flex-wrap: wrap; padding: 1.6rem var(--pad); font-size: var(--text-sm); color: var(--muted); }
.foot a { color: var(--text); text-decoration: none; }
.foot a:hover { color: var(--green); }
.foot nav { display: flex; gap: 1.4rem; }

/* ---------- animated router (hero) ---------- */
.router { position: relative; height: 300px; border-top: 1px solid var(--line); overflow: hidden; }
.router canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.router-labels { position: absolute; inset: 0; pointer-events: none; }
.rl { position: absolute; transform: translateY(-50%); font: 400 var(--text-micro)/1 var(--mono); color: var(--dim); background: var(--paper); padding: .3rem .45rem; border: 1px solid var(--line); border-radius: var(--radius-xs); white-space: nowrap; }
.rl.src { transform: translate(-100%, -50%); }
.rl.hub { transform: translate(-50%, -50%); color: var(--text); background: var(--surface-dark); border-color: var(--line-2); padding: .55rem .8rem; font-size: var(--text-xs); display: inline-flex; align-items: center; gap: .5rem; border-radius: var(--radius-sm); }
.rl.hub i { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 3px var(--signal-16); }
.rl.out { transform: translate(0, -50%); }
.rl.lit { color: var(--signal-ink); background: var(--lime); border-color: var(--action-edge); }
.rl.flash { transition: box-shadow .5s ease; box-shadow: 0 0 0 6px var(--signal-24); }
@media (max-width: 640px) { .router { height: 230px; } .rl { font-size: var(--text-label); padding: .25rem .35rem; } }

/* ---------- trace states (run on click) ---------- */
.trace .row { color: var(--ink-dim); }
.run-btn { margin-left: auto; height: 30px; padding: 0 .85rem; border: 0; border-radius: var(--radius-sm); background: var(--lime); color: var(--lime-ink); font: 600 var(--text-xs)/1 var(--body); cursor: pointer; transition: background-color var(--dur-fast), transform var(--dur-fast) var(--ease); }
.run-btn:hover { background: var(--action-hover); }
.run-btn:active { transform: scale(.96); }
.run-btn[disabled] { opacity: .5; cursor: default; }
.vs b.muted-b { color: var(--muted); font-weight: 400; }
.sh-copy .vs { margin-top: .25rem; }
.sh-copy .vs li { grid-template-columns: 8.5rem 1fr; }

/* ---------- animated logo mark: the lime route switches branch ---------- */
.brand-mark .gm-stem, .brand-mark .gm-b { fill: none; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.brand-mark .gm-stem { stroke: var(--lime); }
.brand-mark .gm-up { stroke: var(--lime); }
.brand-mark .gm-down { stroke: #55554f; }
.brand-mark .gm-nu { fill: var(--lime); }
.brand-mark .gm-nd { fill: #55554f; }
@media (prefers-reduced-motion: no-preference) {
  .brand-mark .gm-up   { animation: gm-up 4.8s var(--ease) infinite; }
  .brand-mark .gm-down { animation: gm-down 4.8s var(--ease) infinite; }
  .brand-mark .gm-nu   { animation: gm-nu 4.8s var(--ease) infinite; }
  .brand-mark .gm-nd   { animation: gm-nd 4.8s var(--ease) infinite; }
}
@keyframes gm-up   { 0%,42% { stroke: #d5ff00; } 50%,92% { stroke: #55554f; } 100% { stroke: #d5ff00; } }
@keyframes gm-down { 0%,42% { stroke: #55554f; } 50%,92% { stroke: #d5ff00; } 100% { stroke: #55554f; } }
@keyframes gm-nu   { 0%,42% { fill: #d5ff00; r: 2.6; } 46% { r: 3.2; } 50%,92% { fill: #55554f; r: 2.6; } 100% { fill: #d5ff00; } }
@keyframes gm-nd   { 0%,42% { fill: #55554f; r: 2.6; } 50%,92% { fill: #d5ff00; r: 2.6; } 96% { r: 3.2; } 100% { fill: #55554f; r: 2.6; } }
.trace .row.is-done, .trace .row.is-waiting { color: var(--ink-text); }

/* ---------- document pages (privacy, terms, 404) ---------- */
.doc { padding: clamp(3rem, 7vw, 5rem) var(--pad); max-width: var(--frame); }
.doc > * { max-width: 44rem; }
.doc .h2 { margin: 1.25rem 0 1.5rem; }
.doc h2 { font-size: var(--text-xl); letter-spacing: var(--tracking-title); margin: 2.25rem 0 .75rem; }
.doc p, .doc li { color: var(--muted); }
.doc p + p { margin-top: .9rem; }
.doc ul { list-style: disc; padding-left: 1.25rem; display: grid; gap: .6rem; }
.doc strong { color: var(--text); font-weight: 500; }
.doc a { color: var(--lime); }
.doc code { font: 400 .9em var(--mono); color: var(--text); }