/* ═══════════════════════════════════════════════════════════
   LAPLAS — Kinetic Typography Landing
   Pure black · neon-green accent · ISOMORPH pill nav
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg:        #050505;
  --text:      #ededed;
  --dim:       #8a8a8a;
  --muted:     #565656;
  --faint:     #3a3a3a;

  --green:     #00ff9d;
  --green-2:   #6effc4;
  --green-ink: #0a8f5e;
  --green-dim: rgba(0,255,157,0.10);
  --green-line:rgba(0,255,157,0.26);
  --green-glow:rgba(0,255,157,0.40);

  --line:      rgba(255,255,255,0.09);
  --line-soft: rgba(255,255,255,0.05);
  --elev:      rgba(255,255,255,0.025);

  --serif: 'Playfair Display', Georgia, serif;
  --sans:  'Inter', system-ui, -apple-system, sans-serif;
  --mono:  ui-monospace, 'SF Mono', Menlo, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: auto; -webkit-text-size-adjust: 100%;
  scrollbar-width: none; -ms-overflow-style: none;   /* hide root scrollbar */
}
html::-webkit-scrollbar { width: 0; height: 0; display: none; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  letter-spacing: -0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scrollbar-width: none; -ms-overflow-style: none;
}
body::-webkit-scrollbar { width: 0; height: 0; display: none; }
body.is-loading { overflow: hidden; }

::selection { background: var(--green-dim); color: var(--green-2); }

/* ═══════════════ ISOMORPH PILL NAV (morphs on scroll) ═══════════════ */

#nav {
  position: fixed; top: 1.1rem; left: 0; right: 0; z-index: 200;
  display: flex; justify-content: center;
  opacity: 0; transform: translateY(-12px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  pointer-events: none;
}
#nav.show { opacity: 1; transform: none; }

.nav-pill {
  pointer-events: auto;
  display: flex; align-items: center; gap: 1.4rem;
  height: 54px; padding: 0 0.45rem 0 1.35rem;
  width: min(700px, 94vw);
  background: rgba(14,14,14,0.82);
  border: 1px solid var(--line);
  border-radius: 100px;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 42px -10px rgba(0,0,0,0.75);
  transition: width 0.6s var(--ease), background 0.6s var(--ease), border-color 0.6s var(--ease);
  overflow: hidden;
}
.nav-pill.is-compact { width: min(360px, 88vw); border-color: var(--green-line); }

.nav-brand {
  display: inline-flex; align-items: center; gap: 0.42rem;
  font-weight: 600; font-size: 0.9rem; letter-spacing: 0.01em;
  color: var(--text); text-decoration: none; white-space: nowrap; flex-shrink: 0;
}
.nav-glyph { color: var(--green); font-size: 0.85rem; text-shadow: 0 0 12px var(--green-glow); }

.nav-morph { position: relative; flex: 1; height: 100%; }

.nav-full, .nav-compact {
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  display: flex; align-items: center; white-space: nowrap;
  transition: opacity 0.4s var(--ease);
}
.nav-full { gap: 1.55rem; }
.nav-compact { gap: 0.55rem; right: 0.9rem; }

.nav-pill.is-compact .nav-full { opacity: 0; pointer-events: none; }
.nav-pill:not(.is-compact) .nav-compact { opacity: 0; pointer-events: none; }

.nav-link {
  font-size: 0.86rem; color: var(--dim); text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.2rem; transition: color 0.25s;
}
.nav-link:hover { color: var(--text); }
.caret { font-size: 0.7rem; opacity: 0.6; }

.nav-open {
  font-size: 0.84rem; font-weight: 600; color: #04130d; text-decoration: none;
  background: var(--green); padding: 0.6rem 1.05rem; border-radius: 100px;
  transition: background 0.25s, transform 0.2s var(--ease), box-shadow 0.25s;
}
.nav-open:hover { background: var(--green-2); transform: translateY(-1px); box-shadow: 0 8px 24px -8px var(--green-glow); }

.nav-sep { color: var(--faint); font-size: 0.9rem; }
.nav-chapter {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--green-2); transition: opacity 0.18s var(--ease);
}

/* ═══════════════ STAGE ═══════════════ */

#spacer { height: var(--scroll-h, 16400px); pointer-events: none; }

#stage { position: fixed; inset: 0; z-index: 1; overflow: hidden; pointer-events: none; }
#stage > * { pointer-events: auto; }

.scene {
  position: absolute; inset: 0; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 6rem clamp(1.5rem, 5vw, 4rem);
  opacity: 0; visibility: hidden; will-change: opacity;
}
.scene-inner { width: 100%; max-width: 940px; }
.center { text-align: center; }

/* ═══════════════ TYPOGRAPHY ═══════════════ */

.word { display: inline-block; }
.char {
  display: inline-block; opacity: 0; transform: translateY(0.55em);
  will-change: opacity, transform;
}

.display--serif { font-family: var(--serif); font-weight: 400; }
.muted { color: var(--muted); }
.green { color: var(--green); text-shadow: 0 0 26px var(--green-glow); }

.hero {
  font-size: clamp(3rem, 8vw, 7.5rem); line-height: 1.02;
  letter-spacing: -0.035em; font-weight: 500; text-wrap: balance;
}
.display {
  font-size: clamp(2rem, 5vw, 4.4rem); line-height: 1.12;
  letter-spacing: -0.025em; font-weight: 500; text-wrap: balance;
}
.lead {
  font-size: clamp(1.25rem, 2.8vw, 2.4rem); line-height: 1.34;
  letter-spacing: -0.015em; text-wrap: balance;
}
.display + .display, .lead + .lead, .display + .lead { margin-top: 1.1rem; }

/* ═══════════════ PRODUCT — shared ═══════════════ */

.scene--product { padding: 6rem clamp(1.2rem, 4vw, 3rem); }
.product { width: 100%; max-width: 980px; display: flex; flex-direction: column; align-items: center; gap: clamp(1.3rem, 3vw, 2.2rem); }
.eyebrow { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.34em; color: var(--green); opacity: 0; }
.product-title { font-size: clamp(1.7rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -0.02em; text-align: center; opacity: 0; text-wrap: balance; }
.product-foot { font-family: var(--serif); font-style: italic; font-size: clamp(1rem, 2vw, 1.4rem); color: var(--dim); opacity: 0; }

.pills { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; opacity: 0; }
.pill { font-family: var(--mono); font-size: 0.74rem; padding: 0.5rem 1.1rem; border: 1px solid var(--line); border-radius: 100px; color: var(--dim); background: var(--elev); }

.trio { display: inline-flex; gap: 6px; }
.trio i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.14); }

/* ═══════════════ SHOWCASE A — interactive chat ═══════════════ */

.demo-chat { width: 100%; max-width: 560px; opacity: 0; }
.chat-tabs { display: flex; gap: 0.4rem; margin-bottom: 0.7rem; background: var(--elev); border: 1px solid var(--line); border-radius: 12px; padding: 0.3rem; overflow: hidden; }
.chat-tab { flex: 1; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; padding: 0.55rem; border: none; border-radius: 9px; cursor: pointer; background: transparent; color: var(--dim); transition: all 0.3s var(--ease); }
.chat-tab:hover { color: var(--text); }
.chat-tab.is-active { background: rgba(255,255,255,0.06); color: var(--text); }
.chat-tab.is-active[data-mode="warm"] { background: var(--green-dim); color: var(--green-2); }

.chat-screen { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #0a0a0a; }
.chat-log { display: flex; flex-direction: column; gap: 0.55rem; padding: 1.1rem; min-height: 210px; max-height: 240px; overflow-y: auto; }
.chat-log::-webkit-scrollbar { width: 0; }
.bubble { font-size: 0.86rem; line-height: 1.5; padding: 0.65rem 0.85rem; border-radius: 11px; max-width: 86%; opacity: 0; transform: translateY(8px); animation: bubbleIn 0.45s var(--ease) forwards; }
@keyframes bubbleIn { to { opacity: 1; transform: none; } }
.bubble.user { align-self: flex-end; background: rgba(255,255,255,0.08); color: var(--text); border-bottom-right-radius: 3px; }
.bubble.ai { background: rgba(255,255,255,0.04); color: var(--dim); border-bottom-left-radius: 3px; }
.bubble.ai.warm { color: var(--green-2); background: var(--green-dim); border: 1px solid var(--green-line); border-bottom-left-radius: 3px; }
.bubble.typing { color: var(--muted); font-style: italic; }
.chat-input { display: flex; gap: 0.5rem; padding: 0.7rem; border-top: 1px solid var(--line-soft); }
.chat-input input { flex: 1; background: var(--elev); border: 1px solid var(--line); border-radius: 9px; padding: 0.55rem 0.8rem; color: var(--text); font-family: var(--sans); font-size: 0.86rem; outline: none; transition: border-color 0.3s; }
.chat-input input:focus { border-color: var(--green-line); }
.chat-input button { width: 40px; border: 1px solid var(--line); border-radius: 9px; background: var(--elev); color: var(--green); font-size: 1rem; cursor: pointer; transition: all 0.25s; }
.chat-input button:hover { background: var(--green-dim); border-color: var(--green-line); }

/* ═══════════════ SHOWCASE B — interactive graph ═══════════════ */

.window { width: 100%; max-width: 720px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #0a0a0a; box-shadow: 0 40px 90px -52px rgba(0,0,0,0.9); opacity: 0; }
.window-bar { display: flex; align-items: center; gap: 0.9rem; padding: 0.75rem 1.1rem; border-bottom: 1px solid var(--line-soft); }
.window-title { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }
.window-live { margin-left: auto; font-family: var(--mono); font-size: 0.64rem; color: var(--green); display: inline-flex; align-items: center; gap: 0.35rem; }
.window-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green-glow); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

.window-body { display: flex; min-height: 422px; }

/* type sigils — color lives ONLY here (mirrors the app's TypeBadge) */
.sig { display: inline-flex; align-items: center; justify-content: center; width: 16px; height: 16px; border-radius: 5px; font-size: 0.6rem; flex-shrink: 0; }
.sig-dec { color: #04140d; background: var(--green); }
.sig-res { color: #04161a; background: #3dd9ff; }
.sig-ppl { color: #1c1404; background: #ffcf6b; }
.sig-prj { color: #140a22; background: #b69bff; }

.app-commits { margin-left: auto; font-family: var(--mono); font-size: 0.64rem; color: var(--muted); }

/* sidebar — Views nav (real-app chrome) */
.side { width: 158px; flex-shrink: 0; display: flex; flex-direction: column; padding: 0.85rem 0.55rem; border-right: 1px solid var(--line-soft); }
.side-brand { display: flex; align-items: center; gap: 0.4rem; font-weight: 700; font-size: 0.8rem; color: var(--text); padding: 0 0.5rem 0.9rem; }
.side-mark { color: var(--green); font-size: 0.72rem; }
.side-head { font-family: var(--mono); font-size: 0.54rem; letter-spacing: 0.22em; color: var(--faint); padding: 0 0.5rem 0.4rem; }
.side-item { display: flex; align-items: center; gap: 0.5rem; width: 100%; text-align: left; font-family: var(--sans); font-size: 0.78rem; color: var(--dim); background: none; border: none; border-radius: 7px; padding: 0.42rem 0.5rem; cursor: pointer; transition: background 0.2s, color 0.2s; }
.side-item .si-ico { width: 14px; font-size: 0.72rem; color: var(--muted); }
.side-item:hover:not(.is-muted) { background: rgba(255,255,255,0.04); color: var(--text); }
.side-item.is-on { background: rgba(255,255,255,0.06); color: var(--text); }
.side-item.is-on .si-ico { color: var(--green); }
.side-item.is-muted { opacity: 0.45; cursor: default; }
.side-sep { height: 1px; background: var(--line-soft); margin: 0.7rem 0.5rem; }
.side-meta { margin-top: auto; font-family: var(--mono); font-size: 0.58rem; line-height: 1.6; color: var(--muted); padding: 0 0.5rem; }

/* main + view switch */
.main { flex: 1; position: relative; overflow: hidden; }
.view { position: absolute; inset: 0; overflow: hidden; opacity: 0; visibility: hidden; transition: opacity 0.3s var(--ease); }
.view.is-on { opacity: 1; visibility: visible; }

/* registry view */
.view-registry { display: flex; flex-direction: column; }
.reg-toolbar { display: flex; align-items: center; gap: 0.8rem; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line-soft); flex-shrink: 0; }
.reg-crumb { font-size: 0.8rem; font-weight: 500; color: var(--text); }
.reg-filters { margin-left: auto; display: flex; gap: 0.4rem; }
.reg-pill { font-family: var(--mono); font-size: 0.62rem; color: var(--dim); padding: 0.25rem 0.6rem; border: 1px solid var(--line); border-radius: 7px; }
.reg-pill.is-on { color: var(--green); border-color: var(--green-line); background: var(--green-dim); }
.reg-list { padding: 0.5rem 0.6rem 0.8rem; overflow-y: auto; }
.reg-list::-webkit-scrollbar { width: 0; }
.reg-group { display: flex; align-items: center; font-family: var(--mono); font-size: 0.57rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); padding: 0.7rem 0.55rem 0.35rem; }
.reg-group em { margin-left: auto; font-style: normal; }
.reg-row { display: flex; align-items: center; gap: 0.55rem; width: 100%; text-align: left; background: none; border: none; border-radius: 8px; padding: 0.5rem 0.55rem; cursor: pointer; transition: background 0.2s; }
.reg-row:hover { background: rgba(255,255,255,0.045); }
.reg-row.is-active { background: rgba(255,255,255,0.07); box-shadow: inset 2px 0 0 var(--green); }
.reg-name { flex: 1; font-size: 0.84rem; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.reg-c { font-family: var(--mono); font-size: 0.68rem; color: var(--faint); }

/* Map view hosts the graph (.view-map provides the positioned box) */
.edges { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.edge { stroke: var(--green-line); stroke-width: 1; fill: none; opacity: 0.5; transition: stroke 0.35s, opacity 0.35s; }
.edge.hot { stroke: var(--green); opacity: 0.95; }
.edge.cold { opacity: 0.1; }
.edge-flow { stroke: var(--green); stroke-width: 1.4; fill: none; opacity: 0.26; stroke-dasharray: 3 13; animation: edgeflow 2.6s linear infinite; transition: opacity 0.35s; }
.edge-flow.hot { opacity: 0.9; }
.edge-flow.cold { opacity: 0; }
@keyframes edgeflow { to { stroke-dashoffset: -32; } }

.node { position: absolute; display: inline-flex; align-items: center; gap: 0.4rem; font-family: var(--mono); font-size: 0.72rem; padding: 0.45rem 0.7rem; border: 1px solid var(--line); border-radius: 9px; background: rgba(16,16,16,0.92); color: var(--text); white-space: nowrap; cursor: pointer; opacity: 0; transform: scale(0.85); transition: border-color 0.25s, background 0.25s, box-shadow 0.25s; }
.node:hover { border-color: var(--green-line); box-shadow: 0 8px 22px -10px rgba(0,0,0,0.85); }
.node.is-active { border-color: var(--green); box-shadow: 0 0 22px -4px var(--green-glow); }
.node.dim { opacity: 0.26 !important; }
.n-core { top: 50%; left: 50%; transform: translate(-50%,-50%) scale(0.85); font-size: 1.3rem; padding: 0.5rem 0.6rem; color: var(--green); border-color: var(--green-line); background: var(--green-dim); box-shadow: 0 0 30px -6px var(--green-glow); }
.core-ring { position: absolute; inset: -7px; border: 1px solid var(--green-line); border-radius: 13px; pointer-events: none; animation: coreRing 2.8s ease-out infinite; }
@keyframes coreRing { 0% { transform: scale(0.7); opacity: 0.7; } 100% { transform: scale(1.7); opacity: 0; } }

.graph-hint { position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%); font-family: var(--mono); font-size: 0.64rem; color: var(--muted); white-space: nowrap; transition: opacity 0.3s; }

/* inspector — the LAPLAS node anatomy */
.inspector { position: absolute; top: 0; right: 0; bottom: 0; width: 64%; max-width: 296px; background: rgba(7,7,7,0.95); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-left: 1px solid var(--line); padding: 1.1rem 1.15rem; overflow-y: auto; transform: translateX(101%); transition: transform 0.45s var(--ease); }
.inspector.open { transform: none; }
.inspector::-webkit-scrollbar { width: 0; }
.insp-close { position: absolute; top: 0.6rem; right: 0.75rem; background: none; border: none; color: var(--muted); font-size: 1.15rem; line-height: 1; cursor: pointer; transition: color 0.2s; }
.insp-close:hover { color: var(--text); }
.insp-type { display: inline-flex; align-items: center; gap: 0.4rem; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.16em; color: var(--dim); margin-bottom: 0.45rem; }
.insp-title { font-family: var(--serif); font-size: 1.15rem; font-weight: 500; line-height: 1.2; margin-bottom: 0.4rem; }
.insp-sec { font-family: var(--mono); font-size: 0.55rem; letter-spacing: 0.2em; color: var(--faint); margin: 0.8rem 0 0.45rem; }
.insp-props { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.insp-props span { font-family: var(--mono); font-size: 0.62rem; color: var(--dim); padding: 0.2rem 0.5rem; border: 1px solid var(--line); border-radius: 100px; }
.insp-links { display: flex; flex-direction: column; gap: 0.42rem; }
.lk { display: flex; align-items: center; gap: 0.4rem; font-family: var(--mono); font-size: 0.66rem; }
.lk-rel { color: var(--muted); }
.lk-arrow { color: var(--green); }
.lk-t { color: var(--text); }
.insp-why { display: flex; flex-direction: column; gap: 0.36rem; border-left: 1px solid var(--green-line); padding-left: 0.75rem; margin-left: 0.15rem; }
.why-line { font-size: 0.76rem; line-height: 1.42; color: var(--text); }
.why-line.branch { color: var(--dim); font-size: 0.72rem; }
.why-line.reject { color: var(--muted); font-size: 0.72rem; }
.insp-foot { margin-top: 1rem; padding-top: 0.7rem; border-top: 1px solid var(--line-soft); font-family: var(--mono); font-size: 0.6rem; line-height: 1.5; color: var(--faint); }

/* ═══════════════ SHOWCASE B — embedded live app ═══════════════ */

.app-embed {
  position: relative; width: min(1000px, 94vw); height: clamp(440px, 70vh, 680px);
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #0a0a0a;
  box-shadow: 0 50px 100px -55px rgba(0,0,0,0.95); opacity: 0;
}
.embed-frame { display: block; width: 100%; height: 100%; border: 0; pointer-events: none; }
.app-embed.live .embed-frame { pointer-events: auto; }

.embed-shield {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 0.7rem; border: 0; cursor: pointer;
  color: var(--text); transition: opacity 0.45s var(--ease);
  background: radial-gradient(circle at 50% 42%, rgba(5,5,5,0.45), rgba(5,5,5,0.82));
}
.app-embed.live .embed-shield { opacity: 0; pointer-events: none; }
.embed-play {
  width: 50px; height: 50px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--green-line); background: var(--green-dim); color: var(--green); font-size: 1.05rem;
  transition: background 0.25s, box-shadow 0.25s; padding-left: 3px;
}
.embed-shield:hover .embed-play { background: rgba(0,255,157,0.18); box-shadow: 0 0 26px -6px var(--green-glow); }
.embed-cta { font-family: var(--serif); font-size: clamp(1.2rem, 2.4vw, 1.6rem); }
.embed-sub { font-family: var(--mono); font-size: 0.66rem; color: var(--dim); }

.embed-exit {
  position: absolute; top: 10px; right: 10px; z-index: 2; cursor: pointer;
  font-family: var(--mono); font-size: 0.62rem; color: var(--text);
  background: rgba(10,10,10,0.82); border: 1px solid var(--line); border-radius: 7px;
  padding: 0.32rem 0.6rem; opacity: 0; pointer-events: none; transition: opacity 0.3s, border-color 0.2s, color 0.2s;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.app-embed.live .embed-exit { opacity: 1; pointer-events: auto; }
.embed-exit:hover { border-color: var(--green-line); color: var(--green-2); }

/* ═══════════════ SHOWCASE C — interactive transfer ═══════════════ */

.transfer { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(0.8rem, 2.5vw, 1.8rem); width: 100%; max-width: 720px; opacity: 0; }
.party { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.ava { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 0.78rem; color: var(--dim); border: 1px solid var(--line); background: var(--elev); transition: color 0.4s, border-color 0.4s, background 0.4s, box-shadow 0.4s; }
.ava--alt.mounted { color: var(--green); border-color: var(--green); background: var(--green-dim); box-shadow: 0 0 22px -6px var(--green-glow); }
.party-label { font-family: var(--mono); font-size: 0.66rem; color: var(--muted); text-align: center; max-width: 110px; }
.wire { position: relative; padding: 0 0.4rem; }
.wire::before { content: ''; position: absolute; top: 50%; left: -0.6rem; right: -0.6rem; height: 1px; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px); }
.packet { position: absolute; top: 50%; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green-glow); transform: translateY(-50%); opacity: 0; }
.file { position: relative; display: flex; align-items: center; gap: 0.9rem; padding: 1rem 1.2rem; border: 1px solid var(--green-line); border-radius: 13px; background: #0a0a0a; overflow: hidden; box-shadow: 0 24px 60px -38px var(--green-glow); }
.file-ico { font-size: 1.6rem; color: var(--green); }
.file-info { flex: 1; min-width: 0; }
.file-name { font-family: var(--mono); font-size: 0.9rem; margin-bottom: 0.18rem; }
.file-meta { font-family: var(--mono); font-size: 0.66rem; color: var(--muted); transition: color 0.3s; }
.file-bar { position: absolute; left: 0; bottom: 0; width: 100%; height: 2px; background: rgba(255,255,255,0.06); }
.file-fill { display: block; width: 0%; height: 100%; background: var(--green); box-shadow: 0 0 10px var(--green-glow); }
.transfer-btn { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; padding: 0.7rem 1.6rem; border: 1px solid var(--green-line); border-radius: 100px; background: var(--green-dim); color: var(--green-2); cursor: pointer; opacity: 0; transition: background 0.25s, transform 0.2s var(--ease), box-shadow 0.25s; }
.transfer-btn:hover { background: rgba(0,255,157,0.16); transform: translateY(-1px); box-shadow: 0 10px 28px -12px var(--green-glow); }
.transfer-btn:disabled { opacity: 0.5; cursor: default; transform: none; box-shadow: none; }

/* ═══════════════ FINALE ═══════════════ */

.final-stack { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.signoff { font-weight: 800; font-size: 1rem; letter-spacing: 0.26em; padding-left: 0.26em; color: var(--green); opacity: 0; display: flex; align-items: baseline; gap: 0.5rem; }
.signoff-mark { text-shadow: 0 0 18px var(--green-glow); }
.signoff-by { font-weight: 400; font-size: 0.66rem; letter-spacing: 0.18em; color: var(--muted); }

/* ═══════════════ SCALE — value ladder (You → Team → Company) ═══════════════ */

.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; width: 100%; max-width: 900px; opacity: 0; }
.tier { display: flex; flex-direction: column; gap: 0.35rem; padding: 1.5rem 1.35rem 1.6rem; border: 1px solid var(--line); border-radius: 16px; background: var(--elev); text-align: left; }
.tier--mid { border-color: var(--green-line); background: var(--green-dim); box-shadow: 0 0 46px -18px var(--green-glow); }
.tier-k { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.2em; color: var(--muted); }
.tier--mid .tier-k { color: var(--green-2); }
.tier-n { font-family: var(--serif); font-size: 1.55rem; line-height: 1; color: var(--text); margin-bottom: 0.45rem; }
.tier--mid .tier-n { color: var(--green-2); text-shadow: 0 0 22px var(--green-glow); }
.tier p { font-size: 0.86rem; line-height: 1.5; color: var(--dim); }

/* ═══════════════ FINALE CTAs ═══════════════ */

.cta-row { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; opacity: 0; }
.cta { font-family: var(--sans); font-size: 0.88rem; font-weight: 500; padding: 0.74rem 1.45rem; border-radius: 100px; border: 1px solid var(--line); color: var(--text); background: var(--elev); text-decoration: none; transition: transform 0.2s var(--ease), background 0.25s, border-color 0.25s, box-shadow 0.25s; }
.cta:hover { transform: translateY(-1px); border-color: var(--green-line); }
.cta--primary { background: var(--green); color: #04130d; border-color: var(--green); font-weight: 600; }
.cta--primary:hover { background: var(--green-2); box-shadow: 0 12px 30px -10px var(--green-glow); }
.cta--ghost { background: transparent; }

/* ═══════════════ RIGHT PROGRESS RAIL ═══════════════ */

#rail-nav { position: fixed; right: 1.5rem; top: 50%; transform: translateY(-50%); z-index: 110; opacity: 0; transition: opacity 0.8s var(--ease); }
#rail-nav.show { opacity: 1; }
.rail-pill { position: relative; width: 30px; height: 300px; background: rgba(20,20,20,0.7); border: 1px solid var(--line); border-radius: 16px; padding: 14px 0; overflow: hidden; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 10px 36px rgba(0,0,0,0.5); cursor: pointer; }
.rail-fill { position: absolute; top: 0; left: 0; width: 100%; height: 0%; background: linear-gradient(180deg, rgba(0,255,157,0.18), rgba(0,255,157,0.02)); pointer-events: none; }
.rail-ticks { position: relative; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: space-between; }
.r-tick { height: 2px; border-radius: 1px; background: rgba(255,255,255,0.16); transition: background 0.3s, width 0.3s, box-shadow 0.3s; }
.r-tick.minor { width: 6px; }
.r-tick.major { width: 14px; background: rgba(255,255,255,0.3); }
.r-tick.passed { background: var(--green-line); }
.r-tick.major.passed { background: var(--green); box-shadow: 0 0 7px var(--green-glow); }

/* ═══════════════ KEY HINT ═══════════════ */

.key-hint {
  position: fixed; left: 50%; bottom: 1.4rem; transform: translateX(-50%);
  z-index: 110; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); opacity: 0; transition: opacity 0.6s;
  pointer-events: none; display: flex; align-items: center; gap: 0.5rem;
}
.key-hint.show { opacity: 1; }
.key-hint kbd {
  font-family: var(--mono); font-size: 0.66rem; color: var(--text);
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px;
  padding: 0.05rem 0.35rem; background: var(--elev);
}

/* ═══════════════ RESPONSIVE ═══════════════ */

@media (max-width: 820px) {
  .transfer { grid-template-columns: 1fr; justify-items: center; }
  .wire { width: 100%; max-width: 320px; }
  .wire::before { left: 0; right: 0; }
  .side { display: none; }
  .nav-link { display: none; }
  .nav-pill { width: min(330px, 92vw); gap: 0.8rem; }
  .nav-pill.is-compact { width: min(330px, 92vw); }
  #rail-nav { right: 0.6rem; }
  .rail-pill { width: 22px; height: 220px; }
  .scene { padding-right: 3rem; }
  .scene--product { padding-right: 3rem; }
  .tiers { grid-template-columns: 1fr; max-width: 360px; }
}
@media (max-width: 480px) {
  .scene { padding: 5.5rem 1.1rem 5.5rem 1.1rem; padding-right: 2.8rem; }
  .nav-pill { padding-left: 1rem; }
}

/* ═══════════════ REDUCED MOTION ═══════════════ */

@media (prefers-reduced-motion: reduce) {
  .char { transform: none !important; }
  .window-live i { animation: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ─── ISOMORPH · LAPLAS family scene ─── */
.product-inner.family { max-width: 1080px; text-align: center; }
.fam-eyebrow { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--green-2); display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1.1rem; }
.fam-sub { color: var(--dim); font-size: 1.02rem; max-width: 46ch; margin: 0.9rem auto 0; line-height: 1.55; }
.family-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.6rem; text-align: left; }
@media (max-width: 820px) { .family-grid { grid-template-columns: 1fr; } }
.family-card { display: flex; flex-direction: column; gap: 0.4rem; padding: 1.6rem 1.5rem 1.4rem;
  background: var(--elev); border: 1px solid var(--line); border-radius: 16px; text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease); }
.family-card:hover { border-color: var(--green-line); background: var(--green-dim); transform: translateY(-3px); }
.fam-k { font-family: var(--sans); font-size: 1.06rem; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.fam-verb { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--green); }
.fam-d { color: var(--dim); font-size: 0.9rem; line-height: 1.55; margin-top: 0.5rem; flex: 1; }
.fam-cta { margin-top: 1rem; font-size: 0.88rem; font-weight: 600; color: var(--green-2); }
.family-card:hover .fam-cta { color: var(--green); text-shadow: 0 0 12px var(--green-glow); }
.family-grid--2 { grid-template-columns: repeat(2, 1fr); max-width: 760px; margin-left: auto; margin-right: auto; }
@media (max-width: 820px) { .family-grid--2 { grid-template-columns: 1fr; } }