/* ============================================================
   JotModel — marketing site styles
   Built ONLY from tokens.css variables. No color/size hex literals.
   Two color layers, never mixed:
     --jm-signal*  → interactive chrome only
     --sem-*       → user data-model content (entity dots/fills) only
     --jm-presence-* → multiplayer cursors only
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--jm-bg);
  color: var(--jm-text);
  font-family: var(--jm-ui);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--jm-dur) var(--jm-ease), color var(--jm-dur) var(--jm-ease);
}
img, svg { display: block; max-width: 100%; }

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: var(--jm-6);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.nowrap { white-space: nowrap; }

/* ---------- focus ---------- */
a:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: var(--jm-ring);
  border-radius: var(--jm-r-sm);
}

/* ---------- type primitives ---------- */
.eyebrow {
  font-family: var(--jm-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--jm-text-dim);
  margin: 0 0 var(--jm-4);
}
h1, h2, h3 {
  font-family: var(--jm-ui);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.14;
  margin: 0;
  color: var(--jm-text);
}
h2 { font-size: clamp(26px, 3.6vw, 38px); letter-spacing: -.028em; }
h3 { font-size: 17px; margin: 0 0 var(--jm-1); }
p { margin: 0 0 var(--jm-3); color: var(--jm-text-mid); }
/* headline emphasis (the second clause of a hero h2) — NOT the app's quiet-text .muted */
.h-accent { color: var(--jm-text-mid); font-weight: 600; }

code {
  font-family: var(--jm-mono);
  font-size: .86em;
  background: var(--jm-surface-2);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-sm);
  padding: 1px 5px;
  color: var(--jm-text-mid);
}

/* ---------- wordmark / mark ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--jm-2);
  color: var(--jm-text);
  text-decoration: none;
}
.mark { color: var(--jm-text); flex: none; }
.wm {
  font-family: var(--jm-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--jm-text);
}
.wm b { font-weight: 700; }
.wm span { color: var(--jm-text-mid); font-weight: 500; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--jm-ui);
  font-weight: 600;
  font-size: 14px;
  line-height: 1;
  border-radius: var(--jm-r-md);
  padding: 9px 16px;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--jm-dur-fast) var(--jm-ease),
              border-color var(--jm-dur-fast) var(--jm-ease),
              color var(--jm-dur-fast) var(--jm-ease),
              transform var(--jm-dur-fast) var(--jm-ease);
}
.btn-primary {
  background: var(--jm-signal);
  color: var(--jm-on-signal);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  background: var(--jm-surface);
  color: var(--jm-text);
  border-color: var(--jm-line-2);
}
.btn-ghost:hover { border-color: var(--jm-text-dim); }
.btn-lg { font-size: 15px; padding: 12px 22px; }

/* ---------- theme toggle ---------- */
.toggle {
  display: inline-flex;
  border: 1px solid var(--jm-line-2);
  border-radius: var(--jm-r-pill);
  overflow: hidden;
  font-family: var(--jm-mono);
  font-size: 11px;
  flex: none;
}
.toggle button {
  padding: 6px 13px;
  background: transparent;
  border: 0;
  color: var(--jm-text-dim);
  cursor: pointer;
  transition: color var(--jm-dur-fast) var(--jm-ease),
              background var(--jm-dur-fast) var(--jm-ease);
}
.toggle button:hover { color: var(--jm-text-mid); }
.toggle button.on { background: var(--jm-text); color: var(--jm-bg); }
.toggle-inline { margin-top: var(--jm-5); }

/* ============================ HEADER ============================ */
.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--jm-bg) 84%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--jm-line);
}
.head-row {
  display: flex;
  align-items: center;
  gap: var(--jm-3);
  padding-block: var(--jm-3);
}
.head-sp { flex: 1; }

/* ============================ HERO ============================ */
.hero {
  padding-block: clamp(var(--jm-12), 7vw, 96px) clamp(var(--jm-10), 6vw, 80px);
  position: relative;
  overflow: hidden;
}
/* faint dot grid wash behind the hero — neutral only */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--jm-grid) 1.1px, transparent 0);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, var(--jm-text) 0%, transparent 78%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, var(--jm-text) 0%, transparent 78%);
  opacity: .7;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(var(--jm-8), 5vw, 64px);
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-title {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 680;
  letter-spacing: -.04em;
  line-height: 1.02;
  margin: var(--jm-2) 0 var(--jm-5);
}
.lede {
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--jm-text-mid);
  max-width: 52ch;
  margin-bottom: var(--jm-6);
}
.lede code { font-size: .82em; }
.cta-row { display: flex; flex-wrap: wrap; gap: var(--jm-3); }
.cta-note {
  margin-top: var(--jm-4);
  font-family: var(--jm-mono);
  font-size: 12px;
  color: var(--jm-text-dim);
}

/* ---------- hero demo ---------- */
.hero-demo { min-width: 0; }
.demo {
  margin: 0;
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-lg);
  overflow: hidden;
  background: var(--jm-canvas);
  box-shadow: var(--jm-shadow-card);
}
.demo-bar {
  display: flex;
  align-items: center;
  gap: var(--jm-2);
  padding: 9px 13px;
  border-bottom: 1px solid var(--jm-line);
  background: var(--jm-surface);
}
.demo-dots { display: inline-flex; gap: 5px; }
.demo-dots i {
  width: 9px; height: 9px; border-radius: var(--jm-r-pill);
  background: var(--jm-surface-2); border: 1px solid var(--jm-line-2);
}
.demo-title {
  font-family: var(--jm-mono);
  font-size: 11.5px;
  color: var(--jm-text-dim);
  margin-left: var(--jm-1);
}
.demo-sp { flex: 1; }
.demo-presence { display: inline-flex; gap: 4px; margin-right: var(--jm-1); }
.pcur { width: 12px; height: 12px; border-radius: var(--jm-r-pill); border: 1.5px solid var(--jm-surface); }
.pcur.p1 { background: var(--jm-presence-1); }
.pcur.p2 { background: var(--jm-presence-2); }
.demo-replay {
  font-family: var(--jm-mono);
  font-size: 11px;
  color: var(--jm-text-mid);
  background: transparent;
  border: 1px solid var(--jm-line-2);
  border-radius: var(--jm-r-sm);
  padding: 4px 9px;
  cursor: pointer;
  transition: border-color var(--jm-dur-fast) var(--jm-ease), color var(--jm-dur-fast) var(--jm-ease);
}
.demo-replay:hover { color: var(--jm-text); border-color: var(--jm-signal); }
.demo-stage {
  position: relative;
  height: 360px;
  overflow: hidden;
  background-image: radial-gradient(circle at 1px 1px, var(--jm-grid) 1.1px, transparent 0);
  background-size: 24px 24px;
}
.demo-rels {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 1;
}

/* demo entity cards (injected by demo.js) */
.d-ent {
  position: absolute;
  z-index: 2;
  min-width: 168px;
  background: var(--jm-surface);
  border: 1px solid var(--jm-line-2);
  border-radius: var(--jm-r-card);
  box-shadow: var(--jm-shadow-card);
}
.d-ent .d-h {
  display: flex; align-items: center; gap: var(--jm-2);
  padding: 8px 10px 8px 12px;
  border-bottom: 1px solid var(--jm-line);
  border-radius: var(--jm-r-card) var(--jm-r-card) 0 0;
}
.d-ent .d-nm { font-family: var(--jm-ui); font-weight: 600; font-size: 13px; color: var(--jm-text); flex: 1; }
.d-ent .d-dot { width: 11px; height: 11px; border-radius: var(--jm-r-pill); flex: none; }
.d-ent .d-b { padding: 3px 0 5px; }
.d-row {
  display: flex; align-items: center; justify-content: space-between; gap: var(--jm-3);
  padding: 3px 12px;
  font-family: var(--jm-mono); font-size: 11.5px;
}
.d-row .d-fn { color: var(--jm-text); white-space: nowrap; }
.d-row .d-fn.pk { font-weight: 600; }
.d-row .d-ty {
  font-size: 9.5px; padding: 1px 6px; border-radius: var(--jm-r-sm);
  color: var(--jm-text-dim); background: var(--jm-surface-2); border: 1px solid var(--jm-line);
}
/* user color-coding — semantic layer, content only */
.d-ent.c-teal   { border-left: 3px solid var(--sem-teal); }
.d-ent.c-teal   .d-h { background: color-mix(in srgb, var(--sem-teal) 9%, transparent); }
.d-ent.c-teal   .d-dot { background: var(--sem-teal); }
.d-ent.c-violet { border-left: 3px solid var(--sem-violet); }
.d-ent.c-violet .d-h { background: color-mix(in srgb, var(--sem-violet) 9%, transparent); }
.d-ent.c-violet .d-dot { background: var(--sem-violet); }
.d-caret {
  display: inline-block; width: 1px; height: 1.05em; margin-left: 1px;
  background: var(--jm-signal); vertical-align: -2px;
  animation: d-blink 1s steps(1) infinite;
}
@keyframes d-blink { 50% { opacity: 0; } }

/* ============================ BANDS ============================ */
.band {
  padding-block: clamp(var(--jm-12), 7vw, 88px);
  border-top: 1px solid var(--jm-line);
}
.band-alt { background: var(--jm-surface-2); }
.section-lede {
  font-size: clamp(15px, 1.6vw, 18px);
  max-width: 62ch;
  margin: var(--jm-4) 0 var(--jm-8);
}

/* ---------- steps ---------- */
.steps {
  list-style: none;
  margin: 0 0 var(--jm-10);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--jm-4);
}
.step {
  display: flex;
  gap: var(--jm-3);
  align-items: flex-start;
  background: var(--jm-surface);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-lg);
  padding: var(--jm-5);
}
.step-n {
  flex: none;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border-radius: var(--jm-r-sm);
  background: var(--jm-surface-2);
  border: 1px solid var(--jm-line);
  font-family: var(--jm-mono);
  font-size: 13px;
  color: var(--jm-text-mid);
}
.step h3 { margin-bottom: var(--jm-1); }
.step p { margin: 0; font-size: 14px; }

/* ---------- infer card ---------- */
.infer-card {
  background: var(--jm-surface);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-lg);
  padding: var(--jm-6);
  box-shadow: var(--jm-shadow-card);
  max-width: 720px;
}
.infer-head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--jm-3);
  padding: 0 var(--jm-2) var(--jm-3);
  border-bottom: 1px solid var(--jm-line);
}
.infer-label {
  font-family: var(--jm-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--jm-text-dim);
}
.infer-head .infer-label:last-child { text-align: right; }
.infer-list { list-style: none; margin: 0; padding: 0; }
.infer-list li {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--jm-3);
  padding: var(--jm-3) var(--jm-2);
  border-bottom: 1px solid var(--jm-line);
}
.infer-list li:last-child { border-bottom: 0; }
.infer-list .fn {
  font-family: var(--jm-mono);
  font-size: 13.5px;
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--jm-text);
}
.infer-list .arrow { color: var(--jm-text-dim); font-size: 14px; }
.infer-list .ty {
  justify-self: end;
  font-family: var(--jm-mono);
  font-size: 12px;
  padding: 2px 9px;
  border-radius: var(--jm-r-sm);
  color: var(--jm-text-mid);
  background: var(--jm-surface-2);
  border: 1px solid var(--jm-line);
}
.infer-foot {
  margin: var(--jm-4) 0 0;
  padding-top: var(--jm-4);
  border-top: 1px solid var(--jm-line);
  font-size: 13.5px;
  color: var(--jm-text-mid);
}

/* ---------- export ---------- */
.export-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(var(--jm-8), 5vw, 56px);
  align-items: center;
}
.export-targets { list-style: none; margin: var(--jm-6) 0 0; padding: 0; display: grid; gap: var(--jm-3); }
.export-targets li {
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: baseline;
  gap: var(--jm-3);
  padding-bottom: var(--jm-3);
  border-bottom: 1px solid var(--jm-line);
}
.tgt-name {
  font-family: var(--jm-mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--jm-text);
}
.tgt-desc { font-size: 14px; color: var(--jm-text-mid); }

.code-card {
  background: var(--jm-surface);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-lg);
  overflow: hidden;
  box-shadow: var(--jm-shadow-card);
}
.code-bar {
  display: flex; align-items: center; gap: var(--jm-2);
  padding: 9px 14px;
  border-bottom: 1px solid var(--jm-line);
  background: var(--jm-surface-2);
}
.code-dot {
  width: 9px; height: 9px; border-radius: var(--jm-r-pill);
  background: var(--jm-line-2);
}
.code-name { font-family: var(--jm-mono); font-size: 11.5px; color: var(--jm-text-dim); }
.code {
  margin: 0;
  padding: var(--jm-5) var(--jm-6);
  overflow-x: auto;
  font-family: var(--jm-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--jm-text-mid);
  tab-size: 2;
}
.code .c-kw { color: var(--jm-text); font-weight: 500; }
.code .c-id { color: var(--jm-text); }
.code .c-ty { color: var(--jm-text-dim); }
.code .c-cm { color: var(--jm-text-dim); font-style: italic; }

/* ---------- features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--jm-4);
}
.feature {
  background: var(--jm-surface);
  border: 1px solid var(--jm-line);
  border-radius: var(--jm-r-lg);
  padding: var(--jm-6);
}
.band-alt .feature { background: var(--jm-bg); }
.feature h3 { margin-bottom: var(--jm-2); }
.feature p { margin: 0; font-size: 14.5px; }
.feature-wide { grid-column: 1 / -1; }

.presence-demo {
  position: relative;
  height: 92px;
  margin-top: var(--jm-5);
  border-top: 1px dashed var(--jm-line-2);
}
.ghost-cur {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.ghost-cur em {
  font-family: var(--jm-mono);
  font-size: 10.5px;
  font-style: normal;
  color: var(--jm-on-signal);
  padding: 1px 7px;
  border-radius: var(--jm-r-sm);
}
/* presence layer — multiplayer identity only */
.ghost-cur.g1 { color: var(--jm-presence-3); top: 16px; left: 6%;  animation: float-a 6s var(--jm-ease) infinite; }
.ghost-cur.g2 { color: var(--jm-presence-5); top: 44px; left: 42%; animation: float-b 7s var(--jm-ease) infinite; }
.ghost-cur.g3 { color: var(--jm-presence-7); top: 26px; left: 72%; animation: float-c 6.5s var(--jm-ease) infinite; }
.ghost-cur.g1 em { background: var(--jm-presence-3); }
.ghost-cur.g2 em { background: var(--jm-presence-5); }
.ghost-cur.g3 em { background: var(--jm-presence-7); }
@keyframes float-a { 0%,100% { transform: translate(0,0); } 50% { transform: translate(22px,10px); } }
@keyframes float-b { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-18px,-12px); } }
@keyframes float-c { 0%,100% { transform: translate(0,0); } 50% { transform: translate(14px,-14px); } }

/* ---------- light/dark equals ---------- */
.equals-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--jm-8), 5vw, 56px);
  align-items: center;
}
.equals-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: var(--jm-4); }
.eq-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--jm-3);
  height: 168px;
  border-radius: var(--jm-r-lg);
  border: 1px solid var(--jm-line);
}
.eq-lk { display: inline-flex; align-items: center; gap: var(--jm-2); }
.eq-lk .wm { font-size: 19px; }
.eq-cap {
  font-family: var(--jm-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--jm-text-dim);
}
/* These tiles intentionally pin a fixed theme to SHOW both side by side.
   data-theme on each tile re-scopes the tokens (set in tokens.css) — so the
   tiles render their own theme regardless of the page theme, with NO raw hex. */
.eq-tile { background: var(--jm-canvas); color: var(--jm-text); }
.eq-tile .wm { color: var(--jm-text); }
.eq-tile .wm span { color: var(--jm-text-mid); }
.eq-tile .mark { color: var(--jm-text); }

/* ============================ FINAL CTA ============================ */
.final-cta {
  border-top: 1px solid var(--jm-line);
  padding-block: clamp(72px, 9vw, 128px);
  text-align: center;
}
.final-inner { display: flex; flex-direction: column; align-items: center; }
.final-title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 680;
  letter-spacing: -.035em;
  line-height: 1.04;
  margin-bottom: var(--jm-4);
}
.final-lede {
  font-size: clamp(15px, 1.8vw, 19px);
  color: var(--jm-text-mid);
  max-width: 46ch;
  margin-bottom: var(--jm-8);
}

/* ============================ FOOTER ============================ */
.site-foot {
  border-top: 1px solid var(--jm-line);
  padding-block: var(--jm-8);
  background: var(--jm-surface-2);
}
.foot-row { display: flex; align-items: center; gap: var(--jm-4); }
.brand-sm .wm { font-size: 15px; }
.foot-sp { flex: 1; }
.foot-nav { display: flex; gap: var(--jm-5); flex-wrap: wrap; }
.foot-nav a {
  font-size: 13.5px;
  color: var(--jm-text-mid);
  text-decoration: none;
}
.foot-nav a:hover { color: var(--jm-text); }
.foot-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--jm-2);
  margin-top: var(--jm-5);
  padding-top: var(--jm-5);
  border-top: 1px solid var(--jm-line);
  font-family: var(--jm-mono);
  font-size: 11.5px;
  color: var(--jm-text-dim);
}

/* ============================ RESPONSIVE ============================ */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-demo { order: 2; }
  .export-grid,
  .equals-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: var(--jm-5); }
  .head-row { gap: var(--jm-2); }
  .toggle { display: none; }            /* keep header uncluttered on phones; toggle lives in the equals section */
  .demo-stage { height: 320px; }
  .export-targets li { grid-template-columns: 1fr; gap: 2px; }
  .foot-row { flex-wrap: wrap; }
}

/* ============================ MOTION ============================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .d-caret { animation: none; opacity: 1; }
}