/* Keyvalv. Everything on this page is served from its own origin. */
:root {
  color-scheme: light dark;
  --paper: #F3EEE4;
  --paper-top: #F8F6F1;
  --frame: #1A1A1C;
  --frame-2: #242427;
  --ink: #151517;
  --ink-soft: #5C5A55;
  --chalk: #F4F1EA;
  --chalk-soft: #A9A7A1;
  --edge: #3A3A3E;
  --yellow: #E6F14A;
  --orange: #F47B2A;
  --bad: #FF7A55;
  --alarm: #E23A1E;
  --ok-on-light: #2E6B1F;
  --bad-on-light: #B3421E;
  /* the light surfaces: header, hero, "show it", FAQ, "who" */
  --lt-bg: var(--paper);
  --lt-top: var(--paper-top);
  --lt-fg: var(--ink);
  --lt-soft: var(--ink-soft);
  --lt-line: var(--ink);
  --lt-hair: #D9D2C4;
  --lt-field: #FFFFFF;
  --lt-ok: var(--ok-on-light);
  --lt-bad: var(--bad-on-light);
  --sans: "Avenir Next", "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  box-sizing: border-box;
}
@media (prefers-color-scheme: dark) {
  :root {
    --lt-bg: #232326;
    --lt-top: #2A2A2E;
    --lt-fg: var(--chalk);
    --lt-soft: var(--chalk-soft);
    --lt-line: var(--chalk);
    --lt-hair: #46464B;
    --lt-field: #151517;
    --lt-ok: #A7E27A;
    --lt-bad: var(--bad);
  }
}
/* every section declares which surface it is on; components read --bg, --fg, --soft, --line */
.on-light { --bg: var(--lt-bg); --fg: var(--lt-fg); --soft: var(--lt-soft); --line: var(--lt-line); --hair: var(--lt-hair); --field: var(--lt-field); --ok: var(--lt-ok); --bad-text: var(--lt-bad); background: var(--bg); color: var(--fg); }
.on-dark { --bg: var(--frame); --fg: var(--chalk); --soft: var(--chalk-soft); --line: var(--edge); --hair: var(--edge); --field: var(--frame-2); --ok: var(--yellow); --bad-text: var(--bad); background: var(--bg); color: var(--fg); }

*, *::before, *::after { box-sizing: inherit; }
html { background: var(--frame); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--frame); color: var(--chalk); font-family: var(--sans); font-size: 1.0625rem; line-height: 1.55; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; border-radius: 6px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip { position: absolute; left: -999rem; top: 0; background: var(--frame); color: var(--chalk); padding: .5rem 1rem; z-index: 20; }
.skip:focus { left: 1rem; top: 1rem; }
.wrap { width: 100%; max-width: 88rem; margin-inline: auto; padding-inline: max(1.25rem, env(safe-area-inset-left, 0px)) max(1.25rem, env(safe-area-inset-right, 0px)); }
@media (min-width: 62rem) { .wrap { padding-inline: 4rem; } }
section { scroll-margin-top: 1rem; }
h2 { font-weight: 500; font-size: clamp(1.875rem, 1.3rem + 2.2vw, 3.25rem); line-height: 1.08; letter-spacing: -.025em; text-wrap: balance; max-width: 30ch; }
h3 { font-weight: 500; }
.muted { color: var(--soft); }

/* Header */
.bar { display: flex; align-items: center; gap: 1.5rem; padding-block: 1.5rem; max-width: none; padding-top: calc(1.5rem + env(safe-area-inset-top, 0px)); }
.bar > * { flex: none; }
.bar { --bg: var(--lt-top); --fg: var(--lt-fg); --soft: var(--lt-soft); --line: var(--lt-line); background: var(--bg); color: var(--fg); }
@media (min-width: 62rem) { .bar { padding-inline: 4rem; } }
.brand { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; }
/* The mark is one <symbol id="mark"> per page (generated by scripts/make-mark.py), drawn with <use>. Its
   ink takes the text colour of wherever it is used; the orange clasp and hook are fixed. */
.mark { display: block; }
.wordmark { font-size: 1.375rem; font-weight: 500; letter-spacing: .03em; }
.nav { display: none; border: 1.5px solid var(--fg); border-radius: 99rem; padding: .375rem .5rem; }
.nav a { text-decoration: none; font-size: .9375rem; padding: .25rem .875rem; border-radius: 99rem; }
.nav a:hover { background: var(--fg); color: var(--bg); }
@media (min-width: 62rem) { .nav { display: flex; } }
.bar-end { margin-left: auto; display: flex; align-items: center; gap: .625rem; }
.pill { display: inline-flex; align-items: center; gap: .5rem; border: 1.5px solid var(--fg); border-radius: 99rem; padding: .4375rem 1rem; font-size: .9375rem; text-decoration: none; white-space: nowrap; }
.pill-status { display: none; border-color: transparent; color: var(--soft); }
@media (min-width: 40rem) { .pill-status { display: inline-flex; } }
.dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--orange); }
.pill-cta { background: var(--fg); color: var(--bg); padding-left: .4375rem; }
.pill-cta:hover { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.chev { flex: none; }
.chev-disc { fill: var(--bg); }
.chev-arrow { fill: none; stroke: var(--fg); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pill-cta:hover .chev-disc { fill: var(--ink); }
.pill-cta:hover .chev-arrow { stroke: var(--orange); }

/* Hero */
.hero { --bg: var(--lt-bg); --fg: var(--lt-fg); --soft: var(--lt-soft); --line: var(--lt-line); --field: var(--lt-field); --ok: var(--lt-ok); --bad-text: var(--lt-bad); color: var(--fg);
  background: radial-gradient(60rem 30rem at 20% 0%, var(--lt-field) 0%, rgba(255, 255, 255, 0) 65%), linear-gradient(180deg, var(--lt-top) 0%, var(--lt-bg) 100%); }
@media (prefers-color-scheme: dark) { .hero { background: radial-gradient(60rem 30rem at 20% 0%, #2E2E33 0%, rgba(46, 46, 51, 0) 65%), linear-gradient(180deg, var(--lt-top) 0%, var(--lt-bg) 100%); } }
.hero-body { padding-block: 2rem 3.5rem; }
@media (min-width: 62rem) { .hero-body { padding-block: 3rem 5rem; } }
h1 { font-weight: 500; font-size: clamp(2.25rem, 1rem + 4.2vw, 4.75rem); line-height: 1.03; letter-spacing: -.035em; text-wrap: balance; }
.h1-line { display: block; }
@media (min-width: 62rem) { .h1-line { white-space: nowrap; } }
.h1-icon { display: inline-block; width: .66em; height: .95em; vertical-align: -.14em; margin-right: .12em; }
.lead { margin-top: 1.5rem; max-width: 34rem; font-size: 1.125rem; }
@media (min-width: 62rem) { .lead { font-size: 1.25rem; } }

/* Sign-up: posts to /api/subscribe on the same origin. Works without JavaScript too; the
   function then redirects to #subscribed, #subscribe-failed or #subscribe-limited and :target shows the note. */
.notify { margin-top: 2rem; max-width: 30rem; scroll-margin-top: 6rem; }
.notify-label { display: block; font-weight: 500; margin-bottom: .75rem; }
.notify-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.notify-input { flex: 1 1 12rem; min-width: 0; padding: .625rem .875rem; font: inherit; font-size: 1rem; color: var(--fg); background: var(--field); border: 1.5px solid var(--fg); border-radius: 99rem; }
.notify-input::placeholder { color: var(--soft); opacity: 1; }
.notify-send { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem 1.125rem .5rem .5rem; font: inherit; font-size: 1rem; font-weight: 500; color: var(--bg); background: var(--fg); border: 1.5px solid var(--fg); border-radius: 99rem; cursor: pointer; white-space: nowrap; }
.notify-send:hover { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.notify-send:hover .chev-disc { fill: var(--ink); }
.notify-send:hover .chev-arrow { stroke: var(--orange); }
.notify-send[disabled] { opacity: .6; cursor: progress; }
.notify-trap { position: absolute; left: -999rem; top: auto; width: 1px; height: 1px; overflow: hidden; }
.notify-hint { margin-top: .75rem; font-size: .9375rem; color: var(--soft); }
.notify-note { display: none; margin-top: .75rem; font-size: .9375rem; }
.notify-note.is-shown, .notify-note:target { display: block; }
.notify-note.is-ok { color: var(--ok); }
.notify-note.is-bad { color: var(--bad-text); }
.notify.is-done .notify-row, .notify.is-done .notify-hint { display: none; }

/* Show it: a stylised browser on example.com, and the key filling the sign-in form */
.show { padding-block: 2.5rem 4rem; }
@media (min-width: 62rem) { .show { padding-block: 3rem 7rem; } }
.show-grid { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 62rem) { .show-grid { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 4rem; } }
.show-copy .muted { margin-top: 1.25rem; max-width: 26rem; font-size: 1.125rem; }
.demo { width: 100%; max-width: 38rem; margin-inline: auto; }
.br { --br-line: var(--hair); position: relative; border: 1.5px solid var(--fg); border-radius: 1rem; background: var(--field); overflow: hidden; box-shadow: 0 2rem 3rem -2rem rgba(0, 0, 0, .45); }
.br-bar { display: flex; align-items: center; gap: .75rem; padding: .625rem .875rem; border-bottom: 1.5px solid var(--fg); }
.br-dots { display: inline-flex; gap: .3rem; }
.br-dots i { width: .6rem; height: .6rem; border-radius: 50%; border: 1.5px solid var(--fg); }
.br-url { flex: 1; min-width: 0; font-family: var(--mono); font-size: .8125rem; padding: .3rem .875rem; border: 1.5px solid var(--br-line); border-radius: 99rem; color: var(--soft); }
.br-key { width: 2.125rem; height: 2.125rem; flex: none; display: grid; place-items: center; border: 1.5px solid var(--fg); border-radius: .625rem; color: var(--fg); }
.br-key svg { width: 1rem; height: 1.45rem; display: block; }
.br-page { padding: 1.75rem 1.25rem 2.25rem; display: grid; place-items: center; }
.br-form { position: relative; width: min(100%, 18rem); }
.br-title { font-weight: 600; font-size: 1.125rem; margin-bottom: .75rem; }
.br-field { position: relative; display: flex; flex-direction: column; justify-content: center; min-height: 3rem; margin-top: .5rem; padding: .375rem 2.5rem .375rem .75rem; border: 1.5px solid var(--br-line); border-radius: .625rem; }
.br-field-key { position: absolute; right: .5rem; top: 50%; width: 1.625rem; height: 1.625rem; margin-top: -.8125rem; display: grid; place-items: center; border-radius: .4rem; color: var(--soft); animation: br-key 8s infinite; }
.br-field-key svg { width: .75rem; height: 1.1rem; display: block; }
.br-label { font-size: .6875rem; letter-spacing: .04em; text-transform: uppercase; color: var(--soft); }
.br-val { font-family: var(--mono); font-size: .9375rem; line-height: 1.3; min-height: 1.3em; white-space: nowrap; overflow: hidden; clip-path: inset(0 100% 0 0); animation: 8s steps(21, end) infinite; }
.br-val-email { animation-name: br-type-a; }
.br-val-pass { animation-name: br-type-b; }
.br-btn { display: grid; margin-top: .75rem; padding: .5rem; border-radius: 99rem; background: var(--fg); color: var(--bg); text-align: center; font-weight: 500; }
.br-btn > span { grid-area: 1 / 1; }
.br-btn-idle { animation: br-idle 8s infinite; }
.br-btn-done { opacity: 0; animation: br-done 8s infinite; }
.br-btn-done::before { content: "✓ "; }
.br-cursor { position: absolute; z-index: 2; left: 52%; top: 62%; width: 1.125rem; height: 1.125rem; background: var(--fg); clip-path: polygon(0 0, 0 82%, 24% 64%, 40% 100%, 56% 93%, 40% 58%, 68% 58%); filter: drop-shadow(0 1px 1px rgba(0, 0, 0, .35)); opacity: 0; animation: br-cursor 8s infinite; }
/* the picker: the saved logins for this site, dropping down under the email field (the key inside it is the trigger) */
.br-pick { position: absolute; left: 0; right: 0; top: 6.1rem; z-index: 1; padding: .375rem; border: 1.5px solid var(--fg); border-radius: .75rem; background: var(--field); box-shadow: 0 1rem 2rem -1rem rgba(0, 0, 0, .5); opacity: 0; transform: translateY(-.25rem); animation: br-pick 8s infinite; }
.br-pick-title { padding: .25rem .625rem .375rem; font-size: .6875rem; letter-spacing: .04em; text-transform: uppercase; color: var(--soft); }
.br-pick-item { display: flex; align-items: baseline; justify-content: space-between; gap: .75rem; padding: .5rem .625rem; border-radius: .5rem; font-family: var(--mono); font-size: .8125rem; }
.br-pick-item small { font-family: var(--sans); font-size: .75rem; color: var(--soft); }
.br-pick-chosen { animation: br-pick-chosen 8s infinite; }
/* the 8 s loop: idle, the pointer reaches the key inside the email field at 1.2 s and clicks at 1.4 s, the key lights
   up and the picker drops down under the field at once, the pointer picks the work login at 2.7 s, the fields fill from 3.1 s and 3.7 s,
   "you're in" at 4.3 s, then a 2.2 s rest before the reset at 6.5 s */
@keyframes br-cursor {
  0%, 5% { left: 52%; top: 62%; opacity: 0; }
  9% { opacity: 1; }
  15%, 17.5% { left: calc(50% + 7.9rem); top: 9.1rem; transform: scale(1); opacity: 1; }
  18% { transform: scale(.75); }
  19.5% { left: calc(50% + 7.9rem); top: 9.1rem; transform: scale(1); }
  31%, 33.75% { left: calc(50% - 6rem); top: 16.3rem; transform: scale(1); opacity: 1; }
  34.25% { transform: scale(.75); }
  36%, 38% { left: calc(50% - 6rem); top: 16.3rem; transform: scale(1); opacity: 1; }
  44%, 79% { left: calc(50% + 10rem); top: 12.5rem; transform: scale(1); opacity: 1; }
  82%, 100% { left: calc(50% + 10rem); top: 12.5rem; opacity: 0; }
}
@keyframes br-key {
  0%, 17.5% { background: transparent; border-color: var(--fg); color: var(--fg); box-shadow: 0 0 0 0 rgba(244, 123, 42, 0); }
  18%, 81% { background: var(--orange); border-color: var(--orange); color: var(--ink); box-shadow: 0 0 0 .3rem rgba(244, 123, 42, .35); }
  82%, 100% { background: transparent; border-color: var(--fg); color: var(--fg); box-shadow: 0 0 0 0 rgba(244, 123, 42, 0); }
}
@keyframes br-pick {
  0%, 18% { opacity: 0; transform: translateY(-.25rem); }
  19.5%, 36% { opacity: 1; transform: translateY(0); }
  37.5%, 100% { opacity: 0; transform: translateY(-.25rem); }
}
@keyframes br-pick-chosen {
  0%, 30% { background: transparent; color: inherit; }
  31%, 37.5% { background: var(--orange); color: var(--ink); }
  38%, 100% { background: transparent; color: inherit; }
}
@keyframes br-type-a { 0%, 38.75% { clip-path: inset(0 100% 0 0); } 45%, 81% { clip-path: inset(0 0 0 0); } 82%, 100% { clip-path: inset(0 100% 0 0); } }
@keyframes br-type-b { 0%, 46.25% { clip-path: inset(0 100% 0 0); } 51.25%, 81% { clip-path: inset(0 0 0 0); } 82%, 100% { clip-path: inset(0 100% 0 0); } }
@keyframes br-idle { 0%, 53.75% { opacity: 1; } 54.25%, 81% { opacity: 0; } 82%, 100% { opacity: 1; } }
@keyframes br-done { 0%, 53.75% { opacity: 0; } 54.25%, 81% { opacity: 1; } 82%, 100% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .br-field-key, .br-val, .br-btn-idle, .br-btn-done, .br-cursor, .br-pick, .br-pick-chosen { animation: none; }
  .br-pick { display: none; }
  .br-field-key { background: var(--orange); color: var(--ink); }
  .br-val { clip-path: none; }
  .br-btn-idle { opacity: 0; }
  .br-btn-done { opacity: 1; }
  .br-cursor { display: none; }
}

/* Why: three plain benefits */
.why { padding-block: 4rem 5rem; }
@media (min-width: 62rem) { .why { padding-block: 7rem 8rem; } }
.intro { margin-top: 1.25rem; max-width: 40rem; font-size: 1.125rem; }
.cards { display: grid; gap: 1rem; margin-top: 2.5rem; }
@media (min-width: 52rem) { .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.card { border: 1.5px solid var(--line); border-radius: 1.25rem; padding: 1.5rem 1.5rem 1.75rem; transition: background-color .25s, color .25s, border-color .25s; }
.card svg { width: 3rem; height: 3rem; margin-bottom: 2rem; }
.ln { fill: none; stroke: var(--yellow); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; transition: stroke .25s; }
.card h3 { font-size: 1.3125rem; letter-spacing: -.01em; }
.card p { margin-top: .625rem; color: var(--soft); font-size: 1rem; transition: color .25s; }
.card:hover { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.card:hover p { color: #2E2F16; }
.card:hover .ln { stroke: var(--ink); }
@media (prefers-reduced-motion: reduce) { .card, .card p, .ln { transition: none; } }

/* The clever part: the explanation and the attacker demo on one side, the ribbon on the other */
.proof { padding-block: 4rem 5rem; border-top: 1px solid var(--edge); }
@media (min-width: 62rem) { .proof { padding-block: 7rem 8rem; } }
.proof-grid { display: grid; gap: 2rem; margin-top: 1.5rem; }
@media (min-width: 62rem) { .proof-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 4rem; align-items: start; } }
.proof-copy > .muted { margin-top: 1rem; max-width: 36rem; font-size: 1.125rem; }
.stage-proof { order: -1; height: 22rem; }
@media (min-width: 62rem) { .stage-proof { order: 0; position: sticky; top: 2rem; height: min(80vh, 44rem); } }

.lab { margin-top: 2.5rem; border: 1.5px solid var(--edge); border-radius: 1.75rem; padding: 1.5rem; background: rgba(26, 26, 28, .6); }
@media (min-width: 40rem) { .lab { padding: 2.25rem; } }
.lab > h3 { font-size: 1.5rem; letter-spacing: -.01em; }
.lab > .muted { margin-top: .625rem; font-size: 1rem; }
.chain { list-style: none; margin: 1.75rem 0 0; padding: 0; }
.rec { position: relative; padding: 0 0 1.375rem 2.25rem; }
.rec:last-child { padding-bottom: 0; }
.rec::before { content: ""; position: absolute; left: .5rem; top: 1.375rem; bottom: -.125rem; border-left: 2px solid var(--edge); }
.rec:last-child::before { display: none; }
.rec::after { content: ""; position: absolute; left: 0; top: .25rem; width: 1.125rem; height: 1.125rem; border-radius: 50%; border: 2px solid var(--edge); background: var(--frame); }
.rec.is-ok::after { border-color: var(--yellow); background: var(--yellow); box-shadow: inset 0 0 0 3px var(--frame); }
.rec.is-bad::after { border-color: var(--bad); }
.rec.is-bad::before { border-left: 2px dashed var(--bad); }
.rec.is-pending::after { border: 2px dashed var(--chalk-soft); }
.rec-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .125rem 1rem; }
.rec-what { font-weight: 600; }
.rec-state { font-size: .875rem; color: var(--chalk-soft); }
.rec.is-ok .rec-state { color: var(--yellow); }
.rec.is-bad .rec-what, .rec.is-bad .rec-state { color: var(--bad); }
.rec-was { margin-top: .125rem; font-size: .9375rem; color: var(--chalk-soft); text-decoration: line-through; }
.rec-print { margin-top: .25rem; font-family: var(--mono); font-size: .8125rem; color: var(--chalk-soft); overflow-wrap: anywhere; }
.rec-print b { font-weight: 400; color: var(--chalk); }
.rec.is-bad .rec-print b { color: var(--bad); }
.tamper { margin-top: .625rem; padding: .3125rem .875rem; font: inherit; font-size: .875rem; color: var(--chalk); background: transparent; border: 1.5px solid var(--edge); border-radius: 99rem; cursor: pointer; }
.tamper:hover { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.tamper[disabled] { display: none; }
.verdict { margin-top: 1.75rem; padding: 1rem 1.125rem; border-radius: 1rem; background: var(--frame-2); font-size: 1rem; }
.verdict.is-ok { color: var(--yellow); }
.verdict.is-bad { background: var(--yellow); color: var(--ink); }
.verdict strong { display: block; font-size: 1.1875rem; font-weight: 600; margin-bottom: .25rem; }
.undo { margin-top: 1rem; padding: .5rem 1.125rem; font: inherit; font-size: .9375rem; color: var(--chalk); background: transparent; border: 1.5px solid var(--chalk); border-radius: 99rem; cursor: pointer; }
.undo:hover { background: var(--chalk); color: var(--ink); }

/* The Chrono-Ribbon: four translucent record facets climbing a diagonal, threaded by a glowing line, with an
   outlined ghost facet for the next release. Inline SVG generated by scripts/make-ribbon.py, so it renders
   without JavaScript; stack.js adds the springs, the tilt and the wiring to the demo beside it. */
.stack {
  --rb-ink: var(--chalk); --rb-muted: var(--chalk-soft);
  --rb-top: rgba(244, 241, 234, .09); --rb-side: rgba(244, 241, 234, .16); --rb-edge: rgba(244, 241, 234, .75);
  --rb-laser: var(--orange); --rb-core: #FFFBEA; --rb-glow: 1;
  --rb-sheen: var(--chalk); --rb-sheen-a: .14;
  --rb-seal: var(--orange); --rb-bad: var(--bad); --rb-shadow: 0;
  position: relative; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
}
.tilt { width: 100%; height: 100%; transform-style: preserve-3d; will-change: transform; }
.stack-svg { display: block; width: 100%; height: 100%; overflow: visible; }
.rb-shadow { fill: var(--ink); opacity: var(--rb-shadow); }
.rb-cap { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; fill: var(--rb-ink); }
.rb-cap-muted { fill: var(--rb-muted); }
.rb-none { fill: none; stroke: var(--rb-muted); stroke-width: 1.5; stroke-dasharray: 5 5; stroke-linejoin: round; }
.rb-none-word { font-family: var(--sans); font-size: 15px; font-style: italic; fill: var(--rb-muted); }
.facet { transform-box: view-box; }
/* the seal and link animations stagger by record; the index is data, not an inline style (the CSP forbids those) */
[data-index="0"] { --i: 0; } [data-index="1"] { --i: 1; } [data-index="2"] { --i: 2; } [data-index="3"] { --i: 3; } [data-index="4"] { --i: 4; }
.fc-side { fill: var(--rb-side); stroke: var(--rb-edge); stroke-width: 1.4; stroke-linejoin: round; }
.fc-l { fill-opacity: .6; } .fc-m { fill-opacity: .72; } .fc-r { fill-opacity: .86; }
.fc-top { fill: var(--rb-top); stroke: var(--rb-edge); stroke-width: 1.6; stroke-linejoin: round; transition: stroke .3s, stroke-width .2s; }
.fc-sheen { fill: url(#rb-sheen); pointer-events: none; }
.sheen-a { stop-color: var(--rb-sheen); stop-opacity: var(--rb-sheen-a); }
.sheen-b { stop-color: var(--rb-sheen); stop-opacity: 0; }
.fc-label { font-family: var(--mono); font-size: 8.5px; letter-spacing: .1em; fill: var(--rb-muted); pointer-events: none; }
.fc-name { fill: var(--rb-ink); }
.node { fill: none; stroke: var(--rb-seal); stroke-width: 3.2; transform-box: fill-box; transform-origin: center; transition: stroke .3s, stroke-width .3s; }
.stack.is-live .facet:not(.facet-ghost) { cursor: grab; touch-action: none; }
.stack.is-live .facet.is-dragging { cursor: grabbing; }
.facet:focus { outline: none; }
.facet:focus-visible .fc-top { stroke: var(--orange); stroke-width: 3; }
.conduit line { stroke-linecap: round; pointer-events: none; }
.cd-glow { stroke: var(--rb-laser); stroke-width: 7; opacity: var(--rb-glow); filter: url(#rb-glow); transition: opacity .3s; }
.cd-core { stroke: var(--rb-core); stroke-width: 1.6; transition: stroke .3s, stroke-width .3s; }
.conduit-ghost .cd-glow { display: none; }
.conduit-ghost .cd-core { stroke: var(--rb-muted); stroke-width: 1.5; stroke-dasharray: 4 5; }
.facet.is-broken .node { stroke: var(--rb-bad); stroke-width: 2.2; stroke-dasharray: 4 3; }
.facet.is-broken .fc-top, .facet.is-broken .fc-side { stroke: var(--rb-bad); }
.facet.is-pulled .fc-name { fill: var(--rb-bad); }
@keyframes cd-crawl { to { stroke-dashoffset: -24; } }
.conduit.is-cut .cd-glow { opacity: 0; }
.conduit.is-cut .cd-core { stroke: var(--rb-bad); stroke-width: 2.2; stroke-dasharray: 5 7; animation: cd-crawl .9s linear infinite; }
.facet-ghost .fc-top, .facet-ghost .fc-side { fill: none; stroke: var(--rb-muted); stroke-dasharray: 4 4; }
.facet-ghost .fc-sheen { display: none; }
.facet-ghost .fc-label, .facet-ghost .fc-name { fill: var(--rb-muted); }
.facet-ghost .node { stroke: var(--rb-muted); stroke-width: 1.6; stroke-dasharray: 3 3; }
@keyframes seal-in { from { transform: scale(0); opacity: 0; } 60% { transform: scale(1.4); opacity: 1; } to { transform: scale(1); opacity: 1; } }
@keyframes link-in { from { stroke-dashoffset: 220; } to { stroke-dashoffset: 0; } }
@keyframes seal-check { 0% { transform: scale(1); } 40% { transform: scale(1.5); } 100% { transform: scale(1); } }
.stack.is-live .facet:not(.facet-ghost) .node { animation: seal-in .55s cubic-bezier(.2, .8, .2, 1) both; animation-delay: calc(.3s + var(--i) * .24s); }
.stack.is-live .conduit:not(.conduit-ghost) line { stroke-dasharray: 220; animation: link-in .5s ease-out both; animation-delay: calc(.1s + var(--i) * .24s); }
.stack.is-live .conduit.is-cut .cd-core { stroke-dasharray: 5 7; animation: cd-crawl .9s linear infinite; }
.stack.is-live .conduit.is-cut .cd-glow { animation: none; }
.facet.is-checked .node { animation: seal-check .5s ease-out; }
.stack.is-small .fc-label, .stack.is-small .rb-none-word { display: none; }
.stack.is-small .rb-cap { font-size: 13px; }
@media (prefers-reduced-motion: reduce) {
  .tilt { transform: none !important; }
  .fc-top, .node, .cd-glow, .cd-core { transition: none; }
  .stack.is-live .facet:not(.facet-ghost) .node, .facet.is-checked .node { animation: none; }
  .stack.is-live .conduit:not(.conduit-ghost) line { stroke-dasharray: none; animation: none; }
  .conduit.is-cut .cd-core, .stack.is-live .conduit.is-cut .cd-core { stroke-dasharray: 5 7; animation: none; }
}

/* FAQ */
.faq { padding-block: 4rem 5rem; }
@media (min-width: 62rem) { .faq { padding-block: 7rem 8rem; } }
.qa { display: grid; gap: 1.5rem 3rem; margin-top: 2.5rem; }
@media (min-width: 52rem) { .qa { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem 4rem; } }
.q { border-top: 1.5px solid var(--hair); padding-top: 1.25rem; }
.q h3 { font-size: 1.25rem; letter-spacing: -.01em; }
.q p { margin-top: .5rem; color: var(--soft); font-size: 1rem; max-width: 36rem; }

/* Who */
.who { padding-block: 3rem 4rem; border-top: 1px solid var(--hair); }
@media (min-width: 62rem) { .who { padding-block: 5rem 6rem; } }
.who-grid { display: grid; gap: 1.25rem; }
@media (min-width: 62rem) { .who-grid { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 4rem; } }
.who p { max-width: 40rem; font-size: 1.125rem; }

/* Sign up again */
.again { padding-block: 4rem 5rem; border-top: 1px solid var(--edge); }
@media (min-width: 62rem) { .again { padding-block: 6rem 7rem; } }
.notify-again { margin-top: 1.5rem; }

/* Footer */
.foot { border-top: 1px solid var(--edge); color: var(--chalk-soft); font-size: .9375rem; padding-bottom: env(safe-area-inset-bottom, 0px); }
.foot-row { display: grid; gap: .5rem; padding-block: 1.5rem; }
@media (min-width: 62rem) { .foot-row { grid-template-columns: minmax(0, 1fr) auto; gap: 2.5rem; } }
.foot-links a { text-decoration-color: var(--edge); }
.foot-links a:hover { color: var(--chalk); }
.noscript { color: var(--chalk-soft); text-align: center; padding: 0 1.5rem 2rem; }

/* Secondary pages: privacy, security, 404, email states */
.page { padding-block: 2.5rem 5rem; min-height: 60vh; }
@media (min-width: 62rem) { .page { padding-block: 4rem 8rem; } }
.page-body { max-width: 40rem; }
.page-body h2 { margin-top: 2.5rem; font-size: 1.5rem; }
.page-body p, .page-body li { margin-top: 1rem; font-size: 1.0625rem; }
.page-body ul { padding-left: 1.25rem; margin: 0; }
.page-body .muted { font-size: 1.125rem; }
.page-body a.pill { margin-top: 2rem; }
.page-state { display: none; }
.page-state:target { display: block; }
.page-state:target ~ .page-state-default { display: none; }