/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 350;
  line-height: 1.6;
  color: var(--color-muted);
  background-color: var(--color-paper);
  background-image:
    radial-gradient(42rem 30rem at 82% -6rem, color-mix(in oklch, var(--color-accent) 16%, transparent), transparent 70%),
    radial-gradient(36rem 28rem at -8% 38rem, color-mix(in oklch, var(--color-bloom-2) 11%, transparent), transparent 70%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-family: var(--font-display); color: var(--color-ink); font-style: normal; margin: 0; overflow-wrap: anywhere; min-width: 0; }
p { margin: 0; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
.mono, code, kbd { font-family: var(--font-mono); font-weight: 400; }
::selection { background: var(--color-accent); color: var(--color-accent-ink); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

.wrap { width: 100%; max-width: var(--page-max); margin-inline: auto; padding-inline: var(--page-gutter); }

/* Ambient particle field — large, soft, slow. Drawn by main.js; sits behind all content. */
.bg-particles { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; opacity: 0; transition: opacity 1200ms var(--ease-out); }
.bg-particles.is-ready { opacity: 1; }

.skip {
  position: absolute; left: var(--space-sm); top: var(--space-sm); z-index: 60;
  padding: var(--space-2xs) var(--space-sm); border-radius: var(--radius-sm);
  background: var(--color-ink); color: var(--color-paper); text-decoration: none;
  transform: translateY(-200%);
}
.skip:focus-visible { transform: none; }

kbd {
  display: inline-grid; place-items: center; min-width: 1.4rem; height: 1.4rem; padding: 0 0.3rem;
  font-size: var(--text-xs); line-height: 1; color: var(--color-muted);
  background: var(--color-paper-3); border: 1px solid var(--color-rule); border-radius: 5px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2xs);
  height: 3rem; padding: 0 var(--space-md);
  border-radius: var(--radius-pill); border: 1px solid transparent;
  font-weight: 500; font-size: var(--text-base); white-space: nowrap; text-decoration: none; cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--sm { height: 2.5rem; padding: 0 var(--space-sm); font-size: var(--text-sm); }
.btn--block { width: 100%; }
.btn--accent { background: var(--color-accent); color: var(--color-accent-ink); }
.btn--accent:hover { background: var(--color-focus); }
.btn--ghost { border-color: var(--color-rule-2); color: var(--color-ink); background: transparent; }
.btn--ghost:hover { border-color: var(--color-muted); background: var(--color-paper-2); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn.is-loading { cursor: progress; opacity: 0.75; }

/* ---------- Nav · N13 ---------- */
.nav { position: sticky; top: 0; z-index: 40; padding-top: var(--space-sm); }
.nav__inner {
  display: flex; align-items: center; gap: var(--space-sm);
  max-width: var(--page-max); margin-inline: auto; padding: 0 var(--page-gutter);
}
.nav__brand {
  display: inline-flex; align-items: center; gap: var(--space-2xs);
  font-family: var(--font-display); font-weight: 600; font-size: var(--text-md); letter-spacing: -0.02em;
  color: var(--color-ink); text-decoration: none; white-space: nowrap;
  padding: var(--space-2xs) var(--space-sm) var(--space-2xs) var(--space-2xs);
  border-radius: var(--radius-pill);
  background: color-mix(in oklch, var(--color-paper) 72%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.nav__mark { width: auto; height: 2.4rem; margin-block: -0.2rem; }
.nav__word { width: auto; height: 1.3rem; margin-top: 0.15rem; }
.searchpill {
  display: flex; align-items: center; gap: var(--space-xs);
  height: 2.5rem; margin-inline: auto; padding: 0 0.45rem 0 0.9rem; width: min(22rem, 100%);
  color: var(--color-neutral); cursor: pointer; text-align: left;
  background: color-mix(in oklch, var(--color-paper-2) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-rule); border-radius: var(--radius-pill);
  transition: border-color var(--dur-short) var(--ease-out);
}
.searchpill:hover { border-color: var(--color-rule-2); color: var(--color-muted); }
.searchpill__ico, .cmdk__field-ico { width: 1.1rem; height: 1.1rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; }
.searchpill__text { flex: 1; font-size: var(--text-sm); white-space: nowrap; }
.searchpill__kbd { display: flex; gap: 3px; }
.nav__right {
  display: flex; align-items: center; gap: var(--space-3xs);
  padding: 0.25rem; border-radius: var(--radius-pill);
  background: color-mix(in oklch, var(--color-paper) 72%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.nav__link {
  padding: 0 var(--space-sm); height: 2.5rem; display: inline-flex; align-items: center;
  font-size: var(--text-sm); color: var(--color-muted); text-decoration: none; white-space: nowrap; border-radius: var(--radius-pill);
  transition: color var(--dur-short) var(--ease-out);
}
.nav__link:hover { color: var(--color-ink); }

/* Command palette */
.cmdk { position: fixed; inset: 0; z-index: 50; opacity: 0; visibility: hidden; transition: opacity var(--dur-short) var(--ease-out), visibility var(--dur-short); }
.cmdk.is-open { opacity: 1; visibility: visible; }
.cmdk__backdrop { position: absolute; inset: 0; background: color-mix(in oklch, var(--color-shadow) 70%, transparent); }
.cmdk__panel {
  position: absolute; top: 14vh; left: 50%;
  width: min(36rem, calc(100% - 2rem));
  transform: translateX(-50%) translateY(-8px) scale(0.98);
  transition: transform var(--dur-short) var(--ease-out);
  background: var(--color-paper-2); border: 1px solid var(--color-rule-2); border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px -20px var(--color-shadow);
  overflow: hidden;
}
.cmdk.is-open .cmdk__panel { transform: translateX(-50%) translateY(0) scale(1); }
.cmdk__field { display: flex; align-items: center; gap: var(--space-xs); padding: var(--space-sm) var(--space-md); border-bottom: 1px solid var(--color-rule); color: var(--color-neutral); }
.cmdk__field input { flex: 1; min-width: 0; background: none; border: 0; outline: none; color: var(--color-ink); font-size: var(--text-md); }
.cmdk__field input::placeholder { color: var(--color-neutral); }
.cmdk__results { max-height: min(22rem, 52vh); overflow-y: auto; padding: var(--space-2xs); }
.cmdk__group { padding: var(--space-xs) var(--space-sm) var(--space-3xs); font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); }
.cmdk__item {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm);
  width: 100%; padding: var(--space-xs) var(--space-sm); border: 0; border-radius: var(--radius-sm);
  background: none; color: var(--color-muted); text-align: left; cursor: pointer;
}
.cmdk__item span:last-child { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); }
.cmdk__item.is-active { background: var(--color-paper-3); color: var(--color-ink); }
.cmdk__item.is-active span:last-child { color: var(--color-accent); }
.cmdk__empty { padding: var(--space-md); color: var(--color-neutral); font-size: var(--text-sm); }
.cmdk__foot { display: flex; gap: var(--space-md); padding: var(--space-xs) var(--space-md); border-top: 1px solid var(--color-rule); font-size: var(--text-xs); color: var(--color-neutral); }
.cmdk__foot kbd { margin-right: 2px; }
body.is-locked { overflow: hidden; }

/* ---------- Hero ---------- */
.hero { padding-top: var(--space-3xl); }
.hero__title {
  font-size: var(--text-display); font-weight: 600; line-height: 0.98; letter-spacing: -0.045em;
  max-width: 13ch;
}
.hero__row {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-lg); align-items: end;
  margin-top: var(--space-lg);
}
.hero__lead { max-width: 52ch; font-size: var(--text-md); color: var(--color-muted); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--space-xs); }

/* ---------- System map ---------- */
.map { margin-top: var(--space-2xl); }
.map__orient { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-xs); font-size: var(--text-sm); color: var(--color-neutral); margin-bottom: var(--space-sm); }
.map__orient .mono { color: var(--color-accent); }
.map__orient-sep { width: 2rem; height: 1px; background: var(--color-rule-2); }
.map__grid {
  display: grid; grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--color-rule); border-radius: var(--radius-lg);
  background: var(--color-paper-2); overflow: hidden; position: relative;
}
/* Drifting particle field behind the map: a fine blueprint grid plus a sparser
 * layer of warm particles, both flowing left → right like requests through the system.
 * Each layer translates exactly one tile per loop, so the loop is seamless. */
.map__grid::before, .map__grid::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -180px; right: 0;
  pointer-events: none; will-change: transform;
}
.map__grid::before {
  background-image: radial-gradient(var(--color-rule) 1px, transparent 1.2px);
  background-size: 22px 22px; background-position: -11px -11px;
  animation: drift-fine 6s linear infinite;
}
.map__grid::after {
  background-image:
    radial-gradient(circle at 18px 26px,  color-mix(in oklch, var(--color-accent) 30%, transparent) 1.2px, transparent 2px),
    radial-gradient(circle at 96px 88px,  color-mix(in oklch, var(--color-accent) 20%, transparent) 1px,   transparent 1.8px),
    radial-gradient(circle at 142px 18px, color-mix(in oklch, var(--color-muted) 30%, transparent) 1px,    transparent 1.8px),
    radial-gradient(circle at 60px 122px, color-mix(in oklch, var(--color-accent) 25%, transparent) 1.4px, transparent 2.2px);
  background-size: 180px 140px;
  animation: drift-particles 16s linear infinite;
}
@keyframes drift-fine      { to { transform: translateX(22px); } }
@keyframes drift-particles { to { transform: translateX(180px); } }
.map__canvas {
  position: relative; z-index: 1; min-width: 0; padding: var(--space-md);
  overflow-x: auto; overscroll-behavior-x: contain;
}
.map__canvas svg { width: 100%; height: auto; min-width: 46rem; overflow: visible; }
.map__panel {
  position: relative; z-index: 1;
  padding: var(--space-lg); border-top: 1px solid var(--color-rule);
  background: var(--color-paper-2);
  display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr) minmax(0, 18rem); grid-template-rows: auto auto;
  column-gap: var(--space-xl); row-gap: var(--space-3xs); align-items: start;
}
.map__panel-layer { grid-column: 1; grid-row: 1; }
.map__panel-title { grid-column: 1; grid-row: 2; }
.map__panel-body { grid-column: 2; grid-row: 1 / span 2; }
.map__panel .chips { grid-column: 3; grid-row: 1 / span 2; margin: 0; }
.map__panel-layer { font-size: var(--text-xs); color: var(--color-accent); }
.map__panel-title { font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.map__panel-body { font-size: var(--text-base); max-width: 60ch; }
.map__panel > * { transition: opacity var(--dur-short) var(--ease-out); }
.map__panel.is-swapping > * { opacity: 0; }
.map__hint { display: none; margin-top: var(--space-2xs); font-size: var(--text-xs); color: var(--color-neutral); text-align: right; }

.chips { list-style: none; margin: var(--space-2xs) 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { font-family: var(--font-mono); font-size: var(--text-xs); padding: 0.2rem 0.55rem; border: 1px solid var(--color-rule-2); border-radius: var(--radius-pill); color: var(--color-muted); }

/* SVG parts */
.m-col { font-family: var(--font-mono); font-size: 12px; fill: var(--color-neutral); letter-spacing: 0.02em; }
.m-zone { fill: none; stroke: var(--color-rule); stroke-dasharray: 3 5; }
.m-edge { fill: none; stroke: var(--color-rule-2); stroke-width: 1.4; transition: stroke var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out); }
.m-edge--ops { stroke-dasharray: 4 6; }
.m-edge.is-hot { stroke: var(--color-accent); stroke-width: 1.8; }
.m-node { cursor: pointer; outline: none; transition: opacity var(--dur-short) var(--ease-out); }
.m-node rect { fill: var(--color-paper-3); stroke: var(--color-rule-2); stroke-width: 1; transition: stroke var(--dur-short) var(--ease-out), fill var(--dur-short) var(--ease-out); }
.m-node :is(text, .m-port) { transition: opacity var(--dur-short) var(--ease-out); }
.m-node .m-label { font-family: var(--font-mono); font-size: 14px; fill: var(--color-ink); }
.m-node .m-sub { font-family: var(--font-body); font-size: 12px; fill: var(--color-neutral); }
.m-node .m-port { fill: var(--color-paper-2); stroke: var(--color-rule-2); }
.m-node:hover rect { stroke: var(--color-muted); }
.m-node:focus-visible rect { stroke: var(--color-focus); stroke-width: 2; }
.m-node.is-active rect { stroke: var(--color-accent); fill: var(--color-paper-2); stroke-width: 1.6; }
.m-node.is-active .m-port, .m-node.is-related .m-port { fill: var(--color-accent); stroke: var(--color-accent); }
/* Dim the contents, not the box, so the particle field never shows through a node. */
.has-active .m-node:not(.is-active):not(.is-related) :is(text, .m-port) { opacity: 0.5; }
.has-active .m-node:not(.is-active):not(.is-related) rect { stroke: var(--color-rule); }
.has-active .m-edge:not(.is-hot) { opacity: 0.35; }
.m-packet { fill: var(--color-accent); }

/* ink-on reveal: column groups fade in, edges draw */
.m-draw .m-edge { stroke-dasharray: var(--len) var(--len); stroke-dashoffset: var(--len); animation: draw 900ms var(--ease-out) forwards; animation-delay: calc(300ms + var(--d, 0) * 90ms); }
.m-draw .m-edge--ops { animation-name: draw-ops; }
.m-draw .m-node, .m-draw .m-col { opacity: 0; animation: fade var(--dur-long) var(--ease-out) forwards; animation-delay: calc(var(--d, 0) * 90ms); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes draw-ops { 0% { stroke-dashoffset: var(--len); } 99% { stroke-dashoffset: 0; } 100% { stroke-dasharray: 4 6; stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: 1; } }

/* ---------- Section scaffolding ---------- */
.section { padding-block: var(--space-4xl) 0; }
.section--tight { padding-top: var(--space-3xl); }
.shead { display: grid; gap: var(--space-sm); max-width: 44rem; margin-bottom: var(--space-xl); }
.shead__title { font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl)); font-weight: 600; letter-spacing: -0.035em; line-height: 1.05; }
.shead__lede { font-size: var(--text-md); max-width: 54ch; }

/* ---------- Services · F3 spec sheet ---------- */
.spec { border-top: 1px solid var(--color-rule); }
.spec__row {
  display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr) minmax(0, 17rem);
  gap: var(--space-lg); padding: var(--space-lg) 0; border-bottom: 1px solid var(--color-rule);
  align-items: baseline;
}
.spec__row--head { padding: var(--space-xs) 0; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); }
.spec__name { font-size: var(--text-lg); font-weight: 500; letter-spacing: -0.02em; line-height: 1.25; }
.spec__stack { font-size: var(--text-sm); color: var(--color-neutral); }
.spec__row:not(.spec__row--head) { position: relative; }
.spec__row:not(.spec__row--head)::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--color-accent);
  transform: scaleX(0); transform-origin: left; transition: transform var(--dur-long) var(--ease-out);
}
.spec__row:not(.spec__row--head):hover::before { transform: scaleX(1); }

/* ---------- Process · commit graph ---------- */
.graph { list-style: none; margin: 0; padding: var(--space-lg) 0 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-md); position: relative; }
.graph::before { content: ""; position: absolute; left: 0; right: 0; top: calc(var(--space-lg) + 7px); height: 2px; background: var(--color-rule-2); }
.graph__step { position: relative; display: grid; gap: var(--space-2xs); align-content: start; }
.graph__dot { width: 16px; height: 16px; border-radius: 50%; background: var(--color-paper); border: 2px solid var(--color-accent); position: relative; z-index: 1; margin-bottom: var(--space-sm); }
.graph__step:first-child .graph__dot, .graph__step:last-child .graph__dot { background: var(--color-accent); }
.graph__step--branch::after {
  content: ""; position: absolute; top: -18px; left: -22%; width: 112%; height: 26px;
  border: 2px dashed var(--color-accent); border-bottom: 0; border-radius: 14px 14px 0 0; opacity: 0.7;
}
.graph__msg { font-size: var(--text-xs); color: var(--color-accent); }
.graph__title { font-size: var(--text-lg); font-weight: 500; letter-spacing: -0.02em; }
.graph__step p { font-size: var(--text-sm); }

/* ---------- Engagement models ---------- */
.engage { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: var(--space-2xl); align-items: start; }
.engage__title { font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl)); font-weight: 600; letter-spacing: -0.035em; line-height: 1.05; position: sticky; top: 7rem; }
.engage__list { display: grid; gap: var(--space-sm); }
.model { padding: var(--space-lg); border-radius: var(--radius-lg); background: var(--color-paper-2); border: 1px solid var(--color-rule); display: grid; gap: var(--space-2xs); transition: border-color var(--dur-short) var(--ease-out); }
.model:hover { border-color: var(--color-rule-2); }
.model__name { font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.03em; }
.model__best { color: var(--color-ink); }
.model__best .mono { font-size: var(--text-xs); color: var(--color-accent); margin-right: var(--space-3xs); }

/* ---------- FAQ ---------- */
.faq { max-width: 52rem; }
.faq__list { margin-top: var(--space-lg); border-top: 1px solid var(--color-rule); }
.faq__item { border-bottom: 1px solid var(--color-rule); }
.faq__item summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--space-md);
  padding: var(--space-md) 0; font-size: var(--text-md); font-weight: 500; color: var(--color-ink);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: ""; flex: none; width: 10px; height: 10px; border-right: 1.5px solid var(--color-neutral); border-bottom: 1.5px solid var(--color-neutral);
  transform: rotate(45deg) translateY(-3px); transition: transform var(--dur-short) var(--ease-in-out);
}
.faq__item[open] summary::after { transform: rotate(-135deg) translateY(-3px); border-color: var(--color-accent); }
.faq__item summary:hover { color: var(--color-accent); }
.faq__body { padding: 0 0 var(--space-md); max-width: 62ch; }

/* ---------- Contact · C2 inline form ---------- */
.contact { padding-bottom: var(--space-4xl); }
.contact__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--space-2xl); align-items: start; }
.contact__title { font-size: clamp(var(--text-2xl), 5vw, 4.2rem); font-weight: 600; letter-spacing: -0.04em; line-height: 1.0; max-width: 12ch; }
.contact__lede { margin-top: var(--space-md); font-size: var(--text-md); }
.contact__direct { margin-top: var(--space-lg); font-size: var(--text-sm); display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2xs); }
.copy {
  display: inline-flex; align-items: center; gap: var(--space-xs); padding: 0.35rem 0.4rem 0.35rem 0.8rem;
  border: 1px solid var(--color-rule-2); border-radius: var(--radius-pill); background: var(--color-paper-2); cursor: pointer;
  color: var(--color-ink); transition: border-color var(--dur-short) var(--ease-out);
}
.copy:hover { border-color: var(--color-accent); }
.copy__state { font-family: var(--font-mono); font-size: var(--text-xs); padding: 0.1rem 0.5rem; border-radius: var(--radius-pill); background: var(--color-paper-3); color: var(--color-neutral); }
.copy.is-done .copy__state { color: var(--color-ok); }

.form { display: grid; gap: var(--space-md); padding: var(--space-lg); border-radius: var(--radius-lg); background: var(--color-paper-2); border: 1px solid var(--color-rule); }
.field { display: grid; gap: var(--space-2xs); }
.field label { font-size: var(--text-sm); color: var(--color-ink); font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; padding: 0.8rem 0.9rem; border-radius: var(--radius-md);
  background: var(--color-paper); border: 1px solid var(--color-rule-2); color: var(--color-ink);
  transition: border-color var(--dur-short) var(--ease-out);
}
.field textarea { resize: vertical; min-height: 7rem; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--color-neutral) 50%), linear-gradient(135deg, var(--color-neutral) 50%, transparent 50%); background-position: calc(100% - 1.2rem) 50%, calc(100% - 0.9rem) 50%; background-size: 0.3rem 0.3rem; background-repeat: no-repeat; padding-right: 2.4rem; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--color-neutral); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; border-color: var(--color-focus); }
.field input:disabled, .field textarea:disabled { opacity: 0.5; cursor: not-allowed; }
.field.is-invalid input, .field.is-invalid textarea { border-color: var(--color-error); }
.field__err { font-size: var(--text-xs); color: var(--color-error); min-height: 0; }
.field__err:empty { display: none; }
.form__status { font-size: var(--text-sm); min-height: 1.5em; color: var(--color-neutral); }
.form__status.is-ok { color: var(--color-ok); }
.form__status.is-error { color: var(--color-error); }

/* ---------- Footer · Ft5 ---------- */
.foot { padding: var(--space-3xl) 0 var(--space-lg); border-top: 1px solid var(--color-rule); }
.foot__top { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-xl); align-items: center; }
.foot__logo { width: auto; height: 11rem; }
.foot__line { font-family: var(--font-display); font-weight: 600; color: var(--color-ink); font-size: clamp(1.75rem, 5vw, 3.6rem); line-height: 1.02; letter-spacing: -0.04em; max-width: 22ch; }
.foot__meta { margin-top: var(--space-2xl); padding-top: var(--space-sm); border-top: 1px solid var(--color-rule); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: var(--space-sm) var(--space-lg); font-size: var(--text-sm); color: var(--color-neutral); }
.foot__brand { font-family: var(--font-display); font-weight: 600; color: var(--color-ink); }
.foot__links { display: flex; gap: var(--space-md); }
.foot__links a { text-decoration: none; white-space: nowrap; }
.foot__links a:hover { color: var(--color-ink); text-decoration: underline; text-decoration-color: var(--color-accent); text-underline-offset: 4px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(8px); animation: reveal var(--dur-long) var(--ease-out) forwards; animation-delay: calc(var(--i, 0) * 80ms); }
@keyframes reveal { to { opacity: 1; transform: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .map__panel { grid-template-columns: minmax(0, 1fr); padding: var(--space-md); }
  .map__panel-layer, .map__panel-title, .map__panel-body, .map__panel .chips { grid-column: 1; grid-row: auto; }
  .map__panel-body { margin-top: var(--space-2xs); }
  .map__panel .chips { margin-top: var(--space-xs); }
  .spec__row { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); }
  .spec__row--head { display: none; }
  .spec__stack { grid-column: 2; }
  .graph { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); padding: 0 0 0 var(--space-lg); }
  .graph::before { left: 7px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .graph__dot { position: absolute; left: calc(-1 * var(--space-lg)); top: 0.1rem; margin: 0; }
  .graph__step--branch::after { top: 6px; left: calc(-1 * var(--space-lg) - 14px); width: 22px; height: calc(100% + 4px); border: 2px dashed var(--color-accent); border-right: 0; border-radius: 14px 0 0 14px; }
}
@media (max-width: 860px) {
  .hero__row { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .engage, .contact__grid { grid-template-columns: minmax(0, 1fr); gap: var(--space-xl); }
  .engage__title { position: static; }
  .map__hint { display: block; }
  .nav__link { display: none; }
}
@media (max-width: 640px) {
  .hero { padding-top: var(--space-2xl); }
  .map__orient-sep { display: none; }
  .foot__top { grid-template-columns: minmax(0, 1fr); }
  .foot__logo { height: 8rem; justify-self: start; }
  .section { padding-top: var(--space-3xl); }
  .searchpill { width: 2.5rem; padding: 0; justify-content: center; margin-left: auto; margin-right: 0; }
  .searchpill__text, .searchpill__kbd { display: none; }
  .nav__inner { gap: var(--space-2xs); }
  .spec__row { grid-template-columns: minmax(0, 1fr); gap: var(--space-2xs); }
  .spec__stack { grid-column: auto; }
  .hero__ctas .btn { flex: 1 1 auto; }
  .form, .model { padding: var(--space-md); }
  .cmdk__panel { top: 0; width: 100%; height: 100%; border-radius: 0; border: 0; }
  .cmdk__results { max-height: none; height: calc(100% - 7.5rem); }
  .cmdk__foot { display: none; }
}
@media (max-width: 360px) {
  .nav__word { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-delay: 0ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
  .reveal { transform: none; }
  .m-draw .m-edge { stroke-dasharray: none; animation: none; }
  .m-draw .m-edge--ops { stroke-dasharray: 4 6; }
  .m-packet { display: none; }
  .map__grid::before, .map__grid::after { animation: none !important; }
}