/* Altitude — learnaltitude.com
   Design system ported from the Claude Design prototype (Landing 3a mobile / 3b desktop).
   Tokens are exact prototype values — change them here, everywhere follows. */

:root {
  --bg: #171B26;
  --bg-deep: #12151F;
  --bg-deepest: #0D1017;
  --card: #1F2433;
  --hero-glow: #1B2030;
  --accent: #DFAE7B;
  --accent-bright: #F4E3CF;
  --accent-soft: rgba(223, 174, 123, .12);
  --accent-line: rgba(223, 174, 123, .4);
  --text: #E7ECF5;
  --body-soft: #C6D0DE;
  --muted: #9AA5B8;
  --dim: #6B7689;
  --faint: #55607E;
  --ghost: #4A5468;
  --node-off: #2A3244;
  --node-intro: #5A6478;
  --line: rgba(223, 228, 236, .12);
  --line-weak: rgba(223, 228, 236, .08);
  --line-strong: rgba(223, 228, 236, .14);
  --sans: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --display: 'Space Grotesk', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

a { color: var(--accent); }
a:hover { color: var(--text); }

img { max-width: 100%; }

::placeholder { color: rgba(160, 155, 145, .7); }

summary::-webkit-details-marker { display: none; }

.container { max-width: 1020px; margin: 0 auto; }
.container--narrow { max-width: 760px; margin: 0 auto; }

/* ---------- Nav ---------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { color: var(--text); }

.brand__word {
  font: 700 15px/1 var(--display);
  letter-spacing: .12em;
}

.nav__cta {
  text-decoration: none;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: 9px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
}
.nav__cta:hover { color: var(--accent); background: rgba(223, 174, 123, .2); }

/* ---------- Sections ---------- */

.section {
  padding: 64px 56px;
  border-bottom: 1px solid var(--line-weak);
}

.section__title {
  font: 600 32px/1.2 var(--display);
  margin: 0 0 8px;
  letter-spacing: -.01em;
}

.section__lead {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 26px;
  text-wrap: pretty;
}

.t-center { text-align: center; }
.t-center .section__lead { margin-left: auto; margin-right: auto; max-width: 560px; }

.kicker {
  font: 500 13px/1.5 var(--mono);
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* ---------- Hero ---------- */

.hero {
  padding: 56px 56px 64px;
  background: radial-gradient(ellipse at 50% 0%, var(--hero-glow) 0%, var(--bg) 65%);
  text-align: center;
}

.hero__inner { max-width: 760px; margin: 0 auto; }

.hero h1 {
  font: 600 58px/1.08 var(--display);
  margin: 0 0 22px;
  letter-spacing: -.02em;
  text-wrap: pretty;
}

.hero h1 em { font-style: normal; color: var(--accent); }

.hero__sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 auto 18px;
  max-width: 620px;
  text-wrap: pretty;
}

.founder-chip {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
}

.founder-chip img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid rgba(223, 228, 236, .25);
}

.founder-chip span { font-size: 13px; color: var(--muted); }

/* ---------- Signup form ---------- */

.signup { max-width: 480px; margin: 0 auto; }

.signup__row { display: flex; gap: 10px; }

.signup input[type="email"] {
  flex: 1;
  background: var(--bg-deep);
  border: 1px solid rgba(223, 228, 236, .18);
  border-radius: 10px;
  padding: 15px 18px;
  color: var(--text);
  font: 400 16px var(--sans);
  outline: none;
  min-width: 0;
}
.signup input[type="email"]:focus { border-color: var(--accent-line); }

.signup button[type="submit"] {
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 10px;
  padding: 15px 26px;
  font: 600 16px var(--sans);
  cursor: pointer;
  flex: none;
}
.signup button[type="submit"]:hover { background: var(--accent-bright); }

.signup__note {
  margin-top: 12px;
  font: 400 12px var(--mono);
  color: var(--dim);
}

.signup__error {
  display: none;
  margin-top: 10px;
  font: 400 13px var(--mono);
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  padding: 10px 14px;
  text-align: left;
}
.signup__error.is-visible { display: block; }

/* success state */
.signup__done { display: none; }
.signup.is-done .signup__done { display: block; }
.signup.is-done .signup__row, .signup.is-done .signup__error { display: none; }

.done-card {
  background: var(--bg-deep);
  border: 1px solid rgba(223, 174, 123, .45);
  border-radius: 10px;
  padding: 18px;
}

.done-card svg { display: block; margin: 0 auto 8px; }

.done-card__line { font: 600 16px var(--sans); color: var(--text); margin-bottom: 4px; }

.done-card__sub { font: 400 11px/1.5 var(--mono); color: var(--accent); }

.share-btn {
  display: block;
  width: 100%;
  margin: 10px auto 0;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: 10px;
  padding: 13px 18px;
  font: 600 14px var(--sans);
  cursor: pointer;
}

.share-hint { margin-top: 8px; font: 400 12px var(--mono); color: var(--dim); }

.ignite-ring { animation: igniteRing 1.6s ease-out infinite; }
.ignite-pop {
  transform-box: fill-box;
  transform-origin: center;
  animation: ignitePop .5s cubic-bezier(.2, 1.4, .4, 1) both;
}

/* ---------- Terminal ---------- */

.terminal {
  max-width: 560px;
  margin: 28px auto 0;
  background: var(--bg-deepest);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-align: left;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .45);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-bottom: 1px solid rgba(223, 228, 236, .07);
}

.terminal__dot { width: 8px; height: 8px; border-radius: 50%; background: #2A3145; }

.terminal__title { font: 400 10px var(--mono); color: var(--dim); margin-left: 6px; }

.terminal__body {
  padding: 13px 16px 15px;
  font: 400 12px/1.75 var(--mono);
  height: 168px;
  overflow-y: auto;
  scrollbar-width: none;
}

.terminal__body::-webkit-scrollbar { display: none; }

.terminal__body > div { padding: 1px 0; white-space: pre-wrap; animation: termIn .45s ease both; }

.terminal__caret { color: var(--accent); animation: blinkDot 1s ease infinite; }

/* ---------- Knowledge map ---------- */

.map-section {
  padding: 0 56px 64px;
  border-bottom: 1px solid var(--line-weak);
  background: radial-gradient(ellipse at 50% 100%, var(--hero-glow) 0%, var(--bg) 70%);
}

.map-card {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 40px 90px rgba(0, 0, 0, .6);
  background: var(--bg-deep);
  text-align: left;
}

.map-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-weak);
  gap: 12px;
}

.map-card__titles { display: flex; align-items: baseline; gap: 14px; }

.map-card__name { font: 700 15px/1.15 var(--display); color: var(--text); }

.map-card__count { font: 400 10.5px var(--mono); color: var(--dim); }

.map-card__filters { display: flex; align-items: center; gap: 8px; }

.trace {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 500 10.5px var(--mono);
  color: var(--accent);
  margin-right: 8px;
  white-space: nowrap;
}

.trace__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: blinkDot 1.2s ease infinite;
}

.pill-filter {
  font: 500 11px var(--sans);
  padding: 6px 12px;
  border-radius: 999px;
}
.pill-filter--on { background: var(--accent); color: var(--bg); font-weight: 600; }
.pill-filter--off { border: 1px solid rgba(223, 228, 236, .18); color: var(--muted); }

.map-card__grid { display: grid; grid-template-columns: 1fr 320px; }

.map-stage { position: relative; }
.map-stage svg { display: block; width: 100%; }

.map-labels { position: absolute; inset: 0; pointer-events: none; }

.map-labels span {
  position: absolute;
  transform: translate(-50%, -100%);
  font-family: var(--mono);
  line-height: 1.2;
  white-space: nowrap;
  transition: color .5s;
}

.map-legend {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 13px;
  background: rgba(18, 21, 31, .75);
  border: 1px solid rgba(223, 228, 236, .1);
  border-radius: 8px;
  padding: 7px 12px;
}

.map-legend span {
  display: flex;
  align-items: center;
  gap: 5px;
  font: 400 9.5px var(--mono);
  color: var(--muted);
}

.dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.dot--u { background: var(--accent); }
.dot--p { border: 1.5px solid var(--accent); }
.dot--i { background: var(--node-intro); }
.dot--n { background: var(--node-off); }
.dot--due { border: 1px dashed var(--accent); }

/* sidebar */
.map-side {
  border-left: 1px solid var(--line-weak);
  padding: 20px;
}

.map-side__inner.flip-a { animation: sbFadeA .55s ease both; }
.map-side__inner.flip-b { animation: sbFadeB .55s ease both; }

.map-side__head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }

.map-side__status { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--accent); flex: none; }

.map-side__name { font: 700 15px var(--mono); color: var(--text); }

.map-side__pills { display: flex; gap: 6px; margin-bottom: 12px; }

.pill-tag {
  font: 500 10px var(--mono);
  color: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
}
.pill-tag--solid { border: 1px solid rgba(223, 174, 123, .6); background: rgba(223, 174, 123, .14); }
.pill-tag--dashed { border: 1px dashed rgba(223, 174, 123, .7); }

.map-side__desc { margin: 0 0 16px; font-size: 13px; line-height: 1.6; color: var(--body-soft); text-wrap: pretty; }

.map-side__label { font: 500 9.5px var(--mono); letter-spacing: .12em; color: var(--dim); margin-bottom: 8px; }

.evidence { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }

.evidence__item { background: var(--bg); border-radius: 8px; padding: 10px 12px; }

.evidence__text { font-size: 12px; line-height: 1.5; color: var(--body-soft); }

.evidence__meta { margin-top: 6px; font: 400 10px var(--mono); color: var(--dim); }

.map-side__meta {
  display: flex;
  flex-direction: column;
  gap: 7px;
  border-top: 1px solid var(--line-weak);
  padding-top: 12px;
  margin-bottom: 16px;
}

.map-side__meta > div { display: flex; justify-content: space-between; gap: 12px; font-size: 12px; }
.map-side__meta .k { color: var(--dim); flex: none; }
.map-side__meta .v { color: var(--body-soft); text-align: right; }
.map-side__meta .v--accent { color: var(--accent); }

.map-cta {
  display: block;
  width: 100%;
  border-radius: 9px;
  padding: 12px 14px;
  font: 600 13.5px var(--sans);
  border: none;
  cursor: default;
  pointer-events: none;
}
.map-cta--due { background: var(--accent); color: var(--bg); }
.map-cta--ok { background: rgba(223, 174, 123, .1); color: var(--accent); border: 1px solid rgba(223, 174, 123, .35); }

.map-cta-note { margin-top: 8px; font: 400 10.5px var(--mono); color: var(--dim); text-align: center; }

.map-caption {
  margin: 18px auto 0;
  max-width: 560px;
  text-align: center;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
  text-wrap: pretty;
}

/* svg node styling hooks */
.g-edge { stroke: rgba(154, 165, 184, .13); stroke-width: 1; transition: stroke .5s; }
.g-edge.is-on { stroke: rgba(223, 174, 123, .85); stroke-width: 1.3; stroke-dasharray: 5 5; animation: edgeFlow 1.1s linear infinite; }
.g-zone { font-family: var(--mono); font-size: 7.5px; letter-spacing: 2px; fill: var(--ghost); }
.g-node { transition: fill .5s, r .5s; }
.g-glow { fill: rgba(223, 174, 123, .14); transition: cx .7s cubic-bezier(.4, 0, .2, 1), cy .7s cubic-bezier(.4, 0, .2, 1); }
.g-ring { fill: none; stroke: var(--accent); stroke-width: 1.2; transition: cx .7s cubic-bezier(.4, 0, .2, 1), cy .7s cubic-bezier(.4, 0, .2, 1); }
.g-ring.flip-a { animation: ringPulseA 1.8s ease-out infinite; }
.g-ring.flip-b { animation: ringPulseB 1.8s ease-out infinite; }
.g-hit { fill: rgba(0, 0, 0, 0); cursor: pointer; pointer-events: all; }

/* ---------- Cards / problem ---------- */

.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.p-card {
  background: var(--card);
  border: 1px solid var(--line-weak);
  border-radius: 14px;
  padding: 24px 28px;
}

.p-card__label {
  font: 500 12px/1 var(--mono);
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.p-card p { margin: 0; font-size: 15px; line-height: 1.6; color: var(--body-soft); }

/* ---------- How it works ---------- */

.loop-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }

.loop-step { display: flex; flex-direction: column; gap: 8px; }

.loop-step__num { font: 500 13px/1 var(--mono); color: var(--accent); }

.loop-step__name { font-size: 17px; font-weight: 600; }

.loop-step p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--muted); }

/* ---------- Dashboard split ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: center;
}

.split h2 { font: 600 30px/1.2 var(--display); margin: 0 0 12px; letter-spacing: -.01em; text-wrap: pretty; }

.split p { margin: 0; font-size: 15px; line-height: 1.65; color: var(--muted); text-wrap: pretty; }

.shot {
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .55);
}

.shot img { display: block; width: 100%; }

/* ---------- Journey ---------- */

.journey-card {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  /* clip, not hidden: hidden makes this a scroll container, which
     un-sticks the pinned route-row from the viewport */
  overflow: hidden;
  overflow: clip;
  box-shadow: 0 40px 90px rgba(0, 0, 0, .6);
  background: var(--bg);
  text-align: left;
}

.journey-card__head {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 28px;
  border-bottom: 1px solid rgba(223, 228, 236, .07);
  background: var(--bg-deep);
  flex-wrap: wrap;
}

.journey-card__title { font: 600 17px/1 var(--display); }

.journey-card__meta { font: 400 12px var(--mono); color: var(--dim); }

.journey-card__note { margin-left: auto; font: 400 12px var(--mono); color: var(--muted); }

.journey-body { max-width: 860px; margin: 0 auto; padding: 40px 40px 48px; }

.route-row { display: flex; gap: 24px; }

.route-rail { width: 40px; flex: none; display: flex; flex-direction: column; align-items: center; }

.route-rail__line { width: 1px; flex: 1; background: #2A3145; }
.route-rail__line--fade { background: linear-gradient(180deg, transparent, #2A3145); min-height: 24px; }
.route-rail__line--active { background: var(--accent); opacity: .5; }

.route-dot { width: 14px; height: 14px; border-radius: 50%; background: #2A3145; flex: none; margin-top: 4px; }

.route-dot--current {
  width: 18px; height: 18px;
  border: 2px solid var(--accent);
  background: var(--bg);
  margin-top: 2px;
  display: flex; align-items: center; justify-content: center;
}
.route-dot--current::after { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

.route-dot--done {
  width: 18px; height: 18px;
  background: var(--accent);
  margin-top: 2px;
  display: flex; align-items: center; justify-content: center;
  color: var(--bg);
  font: 700 11px var(--mono);
}

.route-entry { flex: 1; padding-bottom: 24px; }
.route-entry--locked { opacity: .55; }
.route-entry--next { opacity: .7; }

.route-entry__head { display: flex; align-items: baseline; gap: 12px; }

.route-entry__num { font: 400 12px var(--mono); color: var(--dim); }
.route-entry__num--accent { color: var(--accent); }

.route-entry__name { font: 600 16px var(--display); }

.route-entry__state { font: 400 11px var(--mono); color: var(--faint); margin-left: auto; }
.route-entry__state--accent { color: var(--accent); }

.route-entry p { margin: 6px 0 0; font-size: 14px; color: var(--muted); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }

.chip {
  font: 400 11px var(--mono);
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px 9px;
}
.chip--dim { color: var(--faint); border-color: rgba(223, 228, 236, .1); }
.chip--accent { color: var(--accent); border-color: var(--accent-line); }

.parking {
  flex: 1;
  border: 1px dashed rgba(223, 228, 236, .16);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 18px;
}

.parking__label {
  font: 500 11px/1 var(--mono);
  color: var(--dim);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.parking p { margin: 0 0 10px; font-size: 14px; line-height: 1.55; color: var(--muted); text-wrap: pretty; }

/* The "you are here" row pins to the viewport bottom while the route
   above it scrolls out from behind, then docks at its natural spot.
   bottom: -24px offsets .route-current's 24px bottom margin so the
   card's visible edge sits flush with the viewport while pinned. */
.route-row--pinned {
  position: sticky;
  bottom: -24px;
  z-index: 2;
}

.route-current {
  flex: 1;
  margin-bottom: 24px;
  background: var(--card);
  border: 1px solid rgba(223, 174, 123, .35);
  border-radius: 14px;
  padding: 22px 26px;
  box-shadow: 0 -18px 40px rgba(0, 0, 0, .45);
}

.route-current .route-entry__head { margin-bottom: 4px; }
.route-current .route-entry__name { font-size: 18px; }

.tasks { display: flex; flex-direction: column; gap: 8px; margin: 14px 0 16px; font-size: 14px; }

.task { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.task--now { color: var(--text); font-weight: 500; }
.task--later { color: var(--faint); }

.task__check { color: var(--accent); font: 500 12px var(--mono); }

.task__box { width: 12px; height: 12px; border: 1.5px solid #2A3145; border-radius: 4px; flex: none; }
.task__box--now { border-color: var(--accent); }

.route-concepts { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.route-concepts__note { font-size: 12px; color: var(--dim); }

/* ---------- Founder ---------- */

.founder { display: flex; gap: 20px; align-items: flex-start; }

.founder img {
  width: 72px; height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  border: 1px solid rgba(223, 228, 236, .2);
}

.founder p { margin: 0 0 12px; font-size: 15.5px; line-height: 1.7; color: var(--body-soft); }

.founder__sig { font: 400 13px var(--mono); color: var(--dim); }

/* ---------- FAQ ---------- */

.faq details { border-top: 1px solid rgba(223, 228, 236, .1); padding: 4px 0; }
.faq details:last-child { border-bottom: 1px solid rgba(223, 228, 236, .1); }

.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.faq summary span { color: var(--accent); transition: transform .25s; }
.faq details[open] summary span { transform: rotate(45deg); }

.faq p { margin: 0 0 18px; font-size: 15px; line-height: 1.65; color: var(--muted); }

/* ---------- Closing ---------- */

.closing { padding: 72px 56px 56px; text-align: center; }

.closing h2 { font: 600 34px/1.2 var(--display); margin: 0 0 10px; letter-spacing: -.01em; }

.closing__sub { margin: 0 0 28px; font-size: 15px; color: var(--muted); }

.footer-mark {
  margin-top: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  opacity: .55;
}

.footer-mark span { font: 700 12px/1 var(--display); letter-spacing: .12em; color: var(--muted); }

.footer-links {
  margin-top: 14px;
  font: 400 12px var(--mono);
  color: var(--dim);
}
.footer-links a { color: var(--dim); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }

/* ---------- /start page ---------- */

.steps-list { display: flex; flex-direction: column; gap: 0; counter-reset: step; }

.step-row {
  display: flex;
  gap: 18px;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid rgba(223, 228, 236, .1);
}
.step-row:last-child { border-bottom: 1px solid rgba(223, 228, 236, .1); }

.step-row__num { font: 500 13px var(--mono); color: var(--accent); flex: none; width: 56px; }

.step-row__body { flex: 1; }

.step-row__name { font-size: 16px; font-weight: 600; margin-bottom: 3px; }

.step-row__desc { font-size: 14px; line-height: 1.55; color: var(--muted); }

.step-row__skill { flex: none; }

.cmd {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-deepest);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  font: 500 15px var(--mono);
  color: var(--accent);
  overflow-x: auto;
}

.cmd code { white-space: nowrap; }

.copy-btn {
  margin-left: auto;
  flex: none;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  padding: 8px 14px;
  font: 600 12.5px var(--sans);
  cursor: pointer;
}
.copy-btn:hover { background: rgba(223, 174, 123, .2); }

.prompt-card {
  background: var(--bg-deepest);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 18px;
}

.prompt-card__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(223, 228, 236, .07);
}

.prompt-card__step { font: 500 11px var(--mono); color: var(--accent); letter-spacing: .06em; text-transform: uppercase; }

.prompt-card__name { font: 600 14px var(--sans); color: var(--text); }

.prompt-card__intro { padding: 14px 16px 0; font-size: 14px; line-height: 1.6; color: var(--muted); margin: 0; }

.prompt-card pre {
  margin: 0;
  padding: 14px 16px 16px;
  font: 400 12.5px/1.7 var(--mono);
  color: var(--body-soft);
  white-space: pre-wrap;
  overflow-x: auto;
}

.lane { margin-top: 14px; font-size: 14px; line-height: 1.6; color: var(--muted); }
.lane code { font: 500 13px var(--mono); color: var(--accent); }

.quiet-line {
  margin-top: 26px;
  font-size: 14px;
  color: var(--dim);
  text-align: center;
}
.quiet-line a { color: var(--muted); }
.quiet-line a:hover { color: var(--accent); }

/* ---------- Animations ---------- */

@keyframes ringPulseA { 0% { r: 9px; opacity: .9; } 100% { r: 22px; opacity: 0; } }
@keyframes ringPulseB { 0% { r: 9px; opacity: .9; } 100% { r: 22px; opacity: 0; } }
@keyframes edgeFlow { to { stroke-dashoffset: -20; } }
@keyframes sbFadeA { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes sbFadeB { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes blinkDot { 0%, 100% { opacity: 1; } 50% { opacity: .2; } }
@keyframes igniteRing { 0% { r: 7px; opacity: .9; } 100% { r: 16px; opacity: 0; } }
@keyframes ignitePop { 0% { transform: scale(0); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
@keyframes termIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Mobile (values from prototype frame 3a) ---------- */

@media (max-width: 767px) {
  .nav { padding: 16px 22px; }

  .hero { padding: 24px 22px 40px; }
  .hero h1 { font-size: 40px; line-height: 1.15; letter-spacing: -.015em; margin-bottom: 14px; }
  .hero__sub { font-size: 15px; margin-bottom: 14px; }
  .kicker { font-size: 11px; margin-bottom: 14px; }

  .signup__row { flex-direction: column; }
  .signup button[type="submit"] { width: 100%; }

  .section { padding: 40px 22px; }
  .section__title { font-size: 24px; }
  .section__lead { font-size: 14px; margin-bottom: 20px; }

  .map-section { padding: 0 22px 40px; }
  .map-card { border-radius: 10px; box-shadow: 0 20px 50px rgba(0, 0, 0, .5); }
  .map-card__head { padding: 12px 14px; }
  .map-card__titles { flex-direction: column; gap: 2px; }
  .map-card__name { font-size: 13px; }
  .map-card__count { font-size: 9.5px; }
  .pill-filter { display: none; }
  .map-card__grid { grid-template-columns: 1fr; }
  .map-side { border-left: none; border-top: 1px solid var(--line-weak); padding: 14px; }
  .map-legend { display: none; }
  .evidence__item:nth-child(2), .map-side__meta, .map-side__label, .map-cta-note { display: none; }
  .map-labels span.minor { display: none; }
  .map-caption { font-size: 13.5px; margin-top: 14px; }

  .card-grid, .loop-grid, .split { grid-template-columns: 1fr; }
  .card-grid { gap: 12px; }
  .p-card { padding: 18px 20px; border-radius: 12px; }
  .p-card p, .loop-step p { font-size: 14px; }
  .loop-grid { gap: 22px; }
  .split { gap: 22px; }

  .journey-card__head { padding: 14px 18px; gap: 8px; }
  .journey-card__note { display: none; }
  .journey-body { padding: 24px 18px 32px; }
  .route-row { gap: 14px; }
  .route-rail { width: 28px; }
  .route-current { padding: 16px 18px; }
  .route-entry__state { display: none; }
  .route-concepts__note { display: none; }

  .closing { padding: 48px 22px 40px; }
  .closing h2 { font-size: 26px; }

  .founder { flex-direction: column; }

  .step-row { flex-wrap: wrap; }
  .step-row__num { width: auto; }
  .step-row__skill { width: 100%; margin-top: 6px; margin-left: 0; }

  .terminal__body { height: 190px; font-size: 11px; }
}