/* ============================================================
   SEMICO.AI — demoforgi.html (Digital Twin Lab) page styles
   Namespace: df-. Adds on top of semico.css tokens/components;
   never redefines tokens. v2 sand theme: the page plane is light
   sand; demo chrome (feed, twin theater, timebar, fork panel),
   resident cards and gate chips are dark islands (class="di").
   ============================================================ */

/* ---------- Hero ---------- */
.df-hero { position: relative; padding: clamp(56px, 8vw, 104px) 0 clamp(36px, 5vw, 64px); overflow: hidden; }
.df-hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(28px, 4vw, 56px); align-items: center; }
/* Raise the hero-right live-world-feed panel so it tops out ~level with the headline
   (less dead space above it). Left copy column still sets the row height — page length
   and twin-theater reachability are unchanged. */
.df-hero-grid > .reveal { align-self: start; margin-top: clamp(0px, 5vw, 70px); }
.df-eyebrow { margin: 0 0 14px; color: var(--kicker-c); }
.df-hero h1 { margin: 14px 0 18px; }
.df-hero-sub { max-width: 560px; }
.df-hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin: 26px 0 22px; }
.df-verb-chips { display: flex; gap: 10px; flex-wrap: wrap; }
.df-verb-chips .chip { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.04em; }
.df-verb-chips .chip b { color: var(--cyan); font-weight: 600; margin-right: 2px; }

/* Live world feed (terminal — dark island) */
.df-feed {
  background: #05090f; border: 1px solid var(--glass-border); border-radius: var(--radius-m);
  box-shadow: var(--shadow-2); overflow: hidden; font-family: var(--font-mono);
}
.df-feed-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 16px; border-bottom: 1px solid var(--hairline);
  font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3);
}
.df-feed-head .df-feed-clock { color: var(--cyan); text-transform: none; letter-spacing: 0.02em; margin-left: auto; }
.df-feed-pause {
  background: none; border: 1px solid var(--hairline); border-radius: 6px;
  color: var(--ink-2); font-size: 0.66rem; line-height: 1; padding: 4px 7px; cursor: pointer; flex: none;
}
.df-feed-pause:hover { color: var(--ink); border-color: var(--cyan); }
.df-feed-body { padding: 14px 16px 16px; min-height: 268px; font-size: 0.76rem; line-height: 1.9; }
.df-feed-row { display: flex; gap: 9px; opacity: 0; animation: dfFeedIn 380ms var(--ease-out) forwards; }
@keyframes dfFeedIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.df-feed-row .t { color: var(--ink-3); flex: none; }
.df-feed-row.k-sys .m { color: var(--ink-3); }
.df-feed-row.k-biz .m { color: var(--ink-2); }
.df-feed-row.k-agent .m { color: var(--cyan); }
.df-feed-row.k-alert .m { color: var(--serious); }
.df-feed-row.k-ok .m { color: var(--good-text); }

/* Rehearsal-gap strip (sits on the sand — dark ink) */
.df-rehearsal {
  margin-top: clamp(36px, 5vw, 56px); display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  position: relative; padding-top: 22px;
}
.df-rehearsal::before {
  content: ""; position: absolute; top: 27px; left: 4%; right: 4%; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, rgba(12,163,12,0.55) 0%, rgba(12,163,12,0.55) 66%, rgba(178,58,102,0.7) 100%);
  opacity: 0.55;
}
.df-rh-item { position: relative; padding-top: 20px; }
.df-rh-dot {
  position: absolute; top: -1px; left: 0; width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid var(--good); background: var(--bg-page);
}
.df-rh-dot.bad { border-color: var(--sand-quality); }
.df-rh-dot.bad::after {
  content: ""; position: absolute; inset: -7px; border-radius: 50%;
  border: 1px solid rgba(178,58,102,0.5); animation: dfPing 2.2s var(--ease-out) infinite;
}
@keyframes dfPing { 0% { transform: scale(0.6); opacity: 1; } 100% { transform: scale(1.5); opacity: 0; } }
.df-rh-item b { display: block; font-family: var(--font-display); font-size: 0.95rem; color: var(--ink); margin-bottom: 3px; }
.df-rh-item span:not(.df-rh-dot) { font-size: 0.83rem; color: var(--ink-3); line-height: 1.5; display: block; }
.df-rh-item.is-bad b { color: var(--sand-quality); }

/* ---------- One band: the validation gap → the rehearsal engine ----------
   The pain / verb / why content is compressed into expander cards
   (semico.js .accordion-item — all copy stays in the DOM) so the twin
   theater lands within ~2 scrolls of the hero. Stat strip unchanged. */
.df-gapband { padding: clamp(48px, 6vw, 88px) 0; }
.df-gapband .sec-head { margin-bottom: clamp(24px, 3.5vw, 38px); }
.df-gapband .kpi-row { margin-bottom: 4px; }
.df-dies { margin-top: 32px; }
.df-xlabel { margin: 0 0 12px; }
.df-pains { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; align-items: start; }

/* compact expander-card chrome shared by the three rows */
.df-gapband .accordion-item { margin-bottom: 0; }
.df-x-h { margin: 0; }
.df-gapband .accordion-head { gap: 10px; padding: 12px 14px; font-size: 0.86rem; line-height: 1.35; }
.df-gapband .accordion-body-inner { padding: 0 14px 13px; }
.df-gapband .accordion-body-inner p { font-size: 0.8rem; color: var(--ink-3); margin: 0; line-height: 1.55; }
.df-x-t { display: block; min-width: 0; }
.df-gapband .p-ic {
  display: grid; place-items: center; width: 34px; height: 34px; flex: none; border-radius: 10px;
  background: var(--brand-grad-soft); border: 1px solid var(--glass-border); color: var(--cyan);
}
.df-gapband .accordion-head .icon-tile {
  display: grid; place-items: center; width: 34px; height: 34px; flex: none; border-radius: 10px;
  background: var(--brand-grad-soft); border: 1px solid var(--glass-border); color: var(--cyan);
}

/* row heads (the old section heads, tightened) */
.df-fixhead { margin: clamp(30px, 4vw, 44px) 0 16px; max-width: 860px; }
.df-fixkick { display: block; margin-bottom: 10px; color: var(--kicker-c); }
.df-fixline { font-size: clamp(1.25rem, 2.4vw, 1.65rem); margin: 0 0 10px; }
.df-fixlede { font-size: 0.95rem; color: var(--ink-2); margin: 0; line-height: 1.6; max-width: 780px; }
.df-unmodified { margin: 14px 0 0; display: flex; align-items: center; gap: 10px 14px; flex-wrap: wrap; font-size: 0.9rem; color: var(--ink-2); }
.df-unmodified .chip { font-family: var(--font-mono); font-size: 0.72rem; color: var(--cyan); flex: none; }
.df-whyhead { margin-bottom: 14px; }

/* the three verbs */
.df-verbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; align-items: start; }
.df-verb-num {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.2em; color: var(--cyan);
  text-transform: uppercase; display: block; margin-bottom: 3px; font-weight: 500;
}
.df-verb-list { margin: 0; padding: 0; list-style: none; }
.df-verb-list li { position: relative; padding-left: 18px; font-size: 0.83rem; color: var(--ink-2); margin-bottom: 8px; line-height: 1.5; }
.df-verb-list li:last-child { margin-bottom: 0; }
.df-verb-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 2px; background: var(--brand-grad); border-radius: 2px; }

/* why fabs need this — stat-fronted expanders */
.df-whys { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: start; }
.df-x-hint {
  display: block; font-family: var(--font-mono); font-size: 0.64rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--cyan); margin-bottom: 3px;
}
.df-why-stat {
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--hairline);
  display: flex; align-items: baseline; gap: 10px;
}
.df-why-stat b { font-family: var(--font-ui); font-size: 1.2rem; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
.df-why-stat span { font-size: 0.76rem; color: var(--ink-3); }

/* the lab-floor photo (re-homed in the ladder aside) */
.df-photo { margin: 0; }
.df-photo figcaption { margin-top: 10px; text-align: right; }

/* ---------- Twin theater ---------- */
.df-theater { background: var(--bg-deep); border-block: 1px solid var(--hairline); scroll-margin-top: var(--nav-h); }
.df-timechips { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin: -14px 0 34px; }
.df-timechips .chip { font-family: var(--font-mono); font-size: 0.73rem; }
.df-timechips .chip b { color: var(--cyan); font-weight: 600; }

/* All-product twin picker: suite rail + product rail */
.df-picker { margin-bottom: 18px; }
.df-picker-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.df-star-legend { font-size: 0.74rem; color: var(--ink-3); }
.df-star { font-size: 0.85em; line-height: 1; }
.df-star-legend .df-star { color: var(--copper); }
/* Tier 1 — suite rail: raised LIGHT chips on the sand (card bg #faf6ee,
   hairline border, soft shadow, radius) so the rail stands off the sand while
   staying clearly unlike the dark product dies below. The active chip keeps
   the suite-colored 3px underline + a soft suite tint. */
.df-suites {
  display: flex; gap: 8px; flex-wrap: nowrap; overflow-x: auto;
  margin-bottom: 16px; padding: 2px 2px 10px;
}
.df-suite-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px;
  background: #faf6ee;
  border: 1px solid rgba(36, 31, 22, 0.15);
  border-bottom: 3px solid rgba(36, 31, 22, 0.12);
  border-radius: 11px;
  box-shadow: 0 1px 2px rgba(36, 31, 22, 0.08), 0 3px 10px rgba(36, 31, 22, 0.07);
  color: var(--ink-2); font-family: inherit; font-size: 0.73rem; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase; cursor: pointer; white-space: nowrap;
  transition: color var(--dur-1), border-color var(--dur-1), background var(--dur-1),
    box-shadow var(--dur-1), transform var(--dur-1);
}
.df-suite-btn:hover {
  color: var(--ink); background: #fdfaf4; transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(36, 31, 22, 0.09), 0 6px 16px rgba(36, 31, 22, 0.1);
}
.df-suite-btn .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--sc, var(--cyan)); }
.df-suite-btn .n { font-family: var(--font-mono); font-size: 0.64rem; font-weight: 500; color: var(--ink-3); border: 1px solid rgba(36, 31, 22, 0.16); border-radius: var(--radius-pill); padding: 1px 7px; }
.df-suite-btn.is-active {
  color: var(--ink);
  border-bottom-color: var(--sc, var(--cyan));
  background: #f7f1e2;
  background: linear-gradient(180deg, #fdfaf4 15%, color-mix(in srgb, var(--sc, #38bdf8) 13%, #faf6ee));
  box-shadow: 0 2px 5px rgba(36, 31, 22, 0.1), 0 5px 14px rgba(36, 31, 22, 0.08);
}
.df-suite-btn.is-active .n { color: var(--ink); border-color: var(--sc, var(--cyan)); }

/* Tier 2 — product dies: dark chips; the SELECTED one is unmistakable
   (suite-colored frame + tinted fill + filled icon die + ▶ marker + lift). */
.df-prods { display: flex; gap: 10px; flex-wrap: wrap; }
.df-prod-chip {
  display: inline-flex; align-items: center; gap: 9px; padding: 8px 14px 8px 8px;
  border: 2px solid var(--hairline); border-radius: var(--radius-m);
  color: var(--ink-2); font-family: inherit; font-size: 0.86rem; font-weight: 600; cursor: pointer;
  transition: border-color var(--dur-1), background var(--dur-1), color var(--dur-1), transform var(--dur-1), box-shadow var(--dur-1);
}
.df-prod-chip:hover { transform: translateY(-2px); color: var(--ink); border-color: var(--glass-border); }
.df-prod-chip .ic {
  width: 28px; height: 28px; flex: none; display: grid; place-items: center;
  font-size: 0.95rem; line-height: 1; border-radius: 8px;
  background: var(--glass-strong); border: 1px solid var(--glass-border);
  transition: background var(--dur-1), border-color var(--dur-1);
}
.df-prod-chip .df-star { color: var(--warning); }
.df-prod-chip[aria-selected="true"] {
  color: #fff; border-color: var(--pc, var(--cyan));
  background: linear-gradient(100deg, rgba(56, 189, 248, 0.22), var(--surface-3) 65%);
  background: linear-gradient(100deg, color-mix(in srgb, var(--pc, var(--cyan)) 30%, var(--surface-2)), var(--surface-3) 70%);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(2, 6, 16, 0.55);
}
.df-prod-chip[aria-selected="true"] .ic {
  background: var(--pc, var(--cyan)); border-color: var(--pc, var(--cyan));
}
.df-prod-chip[aria-selected="true"]::after {
  content: "▶ live"; font-family: var(--font-mono); font-size: 0.6rem; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--pc, var(--cyan));
  border: 1px solid var(--pc, var(--cyan)); border-radius: var(--radius-pill);
  padding: 2px 7px; margin-left: 2px;
}

/* Twin chrome (dark island) */
.df-twin { background: var(--surface-1); border: 1px solid var(--glass-border); border-radius: var(--radius-l); overflow: hidden; box-shadow: var(--shadow-2); }
.df-twin-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 14px 20px; border-bottom: 1px solid var(--hairline); background: var(--surface-2);
}
.df-prod { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.df-prod .df-prod-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; align-self: center; }
.df-prod b { font-family: var(--font-display); font-size: 1.05rem; color: var(--ink); }
.df-prod .df-prod-head { font-size: 0.8rem; color: var(--ink-3); font-style: italic; }
.df-top-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.df-tenant { font-size: 0.74rem; color: var(--ink-3); font-family: var(--font-mono); }
.df-sim-pill {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cyan); border-bottom: 1px dotted var(--cyan); padding-bottom: 1px;
}
.df-avatars { display: inline-flex; }
.df-avatars .av {
  width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface-3); border: 1px solid var(--glass-border);
  font-size: 0.62rem; font-weight: 700; color: var(--ink-2); margin-left: -6px;
}
.df-avatars .av:first-child { margin-left: 0; }
.df-avatars .av.agent { color: var(--cyan); }

.df-twin-body { display: grid; grid-template-columns: 136px minmax(0, 1fr) 330px; gap: 0; }
.df-twin-nav { border-right: 1px solid var(--hairline); padding: 16px 10px; }
.df-twin-nav span {
  display: block; padding: 7px 10px; border-radius: var(--radius-s); margin-bottom: 2px;
  font-size: 0.78rem; color: var(--ink-3);
}
.df-twin-nav span.is-hot { color: var(--ink); background: var(--glass); border-left: 2px solid var(--cyan); }
.df-twin-main { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.df-twin-right { border-left: 1px solid var(--hairline); padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }

/* stage elements appear with .on */
.df-appear { opacity: 0; transform: translateY(10px); transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out); }
.df-appear.on { opacity: 1; transform: none; }

.df-alert {
  border: 1px solid rgba(226,85,85,0.45); border-left: 3px solid var(--critical);
  background: rgba(226,85,85,0.08); border-radius: var(--radius-s); padding: 12px 14px;
}
.df-alert .a-text { font-size: 0.86rem; color: var(--ink); font-weight: 600; line-height: 1.5; }
.df-alert .a-src { display: block; margin-top: 4px; font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-3); }

.df-board-card { background: var(--surface-2); border: 1px solid var(--hairline); border-radius: var(--radius-m); overflow: hidden; }
.df-board-title { padding: 10px 14px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); border-bottom: 1px solid var(--hairline); }
.df-board-scroll { overflow-x: auto; }
.df-board table { width: 100%; border-collapse: collapse; font-size: 0.8rem; min-width: 460px; }
.df-board th { text-align: left; font-size: 0.66rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); padding: 8px 14px; border-bottom: 1px solid var(--hairline); }
.df-board td { padding: 10px 14px; border-bottom: 1px solid var(--hairline); color: var(--ink-2); vertical-align: middle; }
.df-board tr:last-child td { border-bottom: 0; }
.df-board td:first-child { color: var(--ink); font-weight: 600; }
.df-board .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.df-flip { display: inline-flex; }
.df-flip .v1 { display: none; }
.df-flip.on .v0 { display: none; }
.df-flip.on .v1 { display: inline-flex; animation: dfPop 480ms var(--ease-out); }
@keyframes dfPop { from { opacity: 0; transform: translateY(6px) scale(0.95); } to { opacity: 1; transform: none; } }

.df-pill { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: var(--radius-pill); font-size: 0.7rem; font-weight: 600; border: 1px solid var(--hairline); white-space: nowrap; }
.df-pill.t-bad  { color: var(--critical); border-color: rgba(226,85,85,0.4); background: rgba(226,85,85,0.09); }
.df-pill.t-warn { color: var(--serious); border-color: rgba(236,131,90,0.4); background: rgba(236,131,90,0.08); }
.df-pill.t-good { color: var(--good-text); border-color: rgba(53,201,106,0.35); background: rgba(12,163,12,0.1); }
.df-pill.t-agent{ color: var(--cyan); border-color: rgba(56,189,248,0.4); background: rgba(56,189,248,0.08); }
.df-pill.t-mut  { color: var(--ink-3); }

/* text-only tones for flip cells (state colors, never chart series) */
.df-tx-bad   { color: var(--critical); font-weight: 600; }
.df-tx-warn  { color: var(--serious); font-weight: 600; }
.df-tx-good  { color: var(--good-text); font-weight: 600; }
.df-tx-agent { color: var(--cyan); font-weight: 600; }
.df-tx-mut   { color: var(--ink-3); }

.df-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.df-kpi { background: var(--surface-2); border: 1px solid var(--hairline); border-radius: var(--radius-m); padding: 14px 16px; }
.df-kpi .k-label { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.df-kpi .k-value { font-family: var(--font-ui); font-size: 1.25rem; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
.df-kpi .k-value .v0 { color: var(--critical); }
.df-kpi .k-value.df-flip.on .v1 { color: var(--good-text); }
.df-kpi .k-note { font-size: 0.72rem; color: var(--ink-3); margin-top: 5px; line-height: 1.45; }

.df-toast {
  display: flex; gap: 10px; align-items: flex-start;
  border: 1px solid rgba(56,189,248,0.4); border-radius: var(--radius-m);
  background: linear-gradient(100deg, rgba(56,189,248,0.1), rgba(168,85,247,0.1));
  padding: 12px 16px; font-size: 0.85rem; color: var(--ink); line-height: 1.55;
}
.df-sim-tag { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em; color: var(--cyan); border-bottom: 1px dotted var(--cyan); white-space: nowrap; }
.df-toast .df-sim-tag { margin-top: 4px; }

/* Right column */
.df-panel-label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 8px; }
.df-console { min-height: 128px; max-height: 168px; overflow-y: auto; font-size: 0.75rem; padding: 14px 16px; }

.df-proposal { background: var(--surface-2); border: 1px solid rgba(56,189,248,0.35); border-radius: var(--radius-m); padding: 14px 16px; }
.df-prop-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.7rem; color: var(--cyan); margin-bottom: 8px; }
.df-prop-head .df-conf { margin-left: auto; color: var(--ink-3); border: 1px solid var(--hairline); border-radius: var(--radius-pill); padding: 1px 8px; }
.df-proposal h4 { font-size: 0.95rem; margin-bottom: 8px; }
.df-actions { margin: 0 0 10px; padding-left: 18px; }
.df-actions li { font-size: 0.8rem; color: var(--ink-2); margin-bottom: 6px; line-height: 1.5; }
.df-cites { display: flex; gap: 6px; flex-wrap: wrap; }
.df-cites .chip { font-family: var(--font-mono); font-size: 0.64rem; padding: 3px 9px; }

.df-approve-btn {
  width: 100%; padding: 11px 16px; border-radius: var(--radius-pill); cursor: pointer;
  background: var(--brand-grad); color: #061018; border: 1px solid transparent;
  font-family: inherit; font-size: 0.88rem; font-weight: 700;
  transition: box-shadow var(--dur-1), transform var(--dur-1), background var(--dur-1);
}
.df-approve-btn:hover:not(.is-approved) { transform: translateY(-1px); box-shadow: var(--glow-cyan); }
.df-approve-btn.is-approved { background: rgba(12,163,12,0.18); color: var(--good-text); border-color: rgba(53,201,106,0.4); cursor: default; }
.df-stamp { margin-top: 8px; font-family: var(--font-mono); font-size: 0.7rem; color: var(--good-text); line-height: 1.6; }

.df-rail { background: var(--surface-2); border: 1px dashed var(--glass-border); border-radius: var(--radius-m); padding: 14px 16px; }
.df-rail-title { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }
.df-golden { list-style: none; margin: 0 0 12px; padding: 0; }
.df-golden li { display: flex; align-items: baseline; gap: 8px; font-size: 0.74rem; padding: 5px 0; border-bottom: 1px solid var(--hairline); }
.df-golden li:last-child { border-bottom: 0; }
.df-golden .g-id { font-family: var(--font-mono); color: var(--ink-3); flex: none; }
.df-golden .g-label { color: var(--ink-2); flex: 1; min-width: 0; }
.df-golden .g-state { font-family: var(--font-mono); font-size: 0.68rem; flex: none; }
.df-golden .g-state.run { color: var(--cyan); }
.df-golden .g-state.pass { color: var(--good-text); }
.df-calib { border-top: 1px solid var(--hairline); padding-top: 10px; margin-bottom: 10px; }
.df-calib-row { display: flex; justify-content: space-between; gap: 10px; font-size: 0.72rem; color: var(--ink-3); padding: 3px 0; }
.df-calib-row b { font-family: var(--font-mono); color: var(--ink-2); font-weight: 600; }
.df-fkey { border-top: 1px dashed var(--hairline); padding-top: 10px; font-size: 0.72rem; color: var(--ink-3); line-height: 1.55; }
.df-fkey .key {
  display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 4px;
  border: 1px solid var(--glass-border); background: var(--surface-3); color: var(--cyan);
  font-family: var(--font-mono); font-size: 0.66rem; margin-right: 4px;
}

/* Fork panel (inside the dark twin island) */
.df-forkpanel { border-top: 1px solid var(--hairline); padding: 20px; background: var(--surface-2); }
.df-fork-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.df-fork-head h4 { margin: 0; font-size: 1rem; }
.df-fork-head .df-sim-pill { flex: none; }
.df-branches { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.df-branch { border-radius: var(--radius-m); padding: 14px 16px; border: 1px solid var(--hairline); }
.df-branch .b-tag { display: block; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 7px; }
.df-branch p { font-size: 0.82rem; margin: 0; line-height: 1.55; }
.df-branch.a { border-color: rgba(226,85,85,0.35); background: rgba(226,85,85,0.05); }
.df-branch.a .b-tag { color: var(--critical); }
.df-branch.b { border-color: rgba(53,201,106,0.3); background: rgba(12,163,12,0.06); }
.df-branch.b .b-tag { color: var(--good-text); }
.df-branch-delta { margin-top: 12px; font-family: var(--font-mono); font-size: 0.76rem; color: var(--ink); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }

.df-fork-chart svg { display: block; width: 100%; height: auto; }
.df-fork-chart .axis { stroke: var(--axis-line); stroke-width: 1; }
.df-fork-chart .gridline { stroke: var(--grid-line); stroke-width: 1; }
.df-fork-chart .tick-label, .df-fork-chart .x-label { font-family: var(--font-mono); font-size: 10px; fill: var(--ink-3); }
.df-fork-chart .series { fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.df-fork-chart .series.draw { transition: stroke-dashoffset 2.4s var(--ease-out); }
.df-fork-chart .df-inj-mark { font-family: var(--font-mono); font-size: 10px; fill: var(--serious); }
.df-fork-note { margin-top: 10px; font-family: var(--font-mono); font-size: 0.74rem; color: var(--ink-2); display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }

/* Timebar (stays dark) */
.df-timebar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 20px; border-top: 1px solid var(--hairline); background: #05090f;
}
.df-tb-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px;
  border-radius: var(--radius-pill); background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--ink); font-family: var(--font-mono); font-size: 0.74rem; font-weight: 600; cursor: pointer;
  transition: background var(--dur-1), border-color var(--dur-1), color var(--dur-1);
}
.df-tb-btn:hover:not(:disabled) { background: var(--glass-strong); border-color: rgba(56,189,248,0.45); }
.df-tb-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.df-tb-btn.df-tb-inject { color: var(--warning); border-color: rgba(250,178,25,0.35); }
.df-tb-btn.df-tb-inject:hover:not(:disabled) { border-color: rgba(250,178,25,0.6); background: rgba(250,178,25,0.08); }
.df-tb-btn[aria-expanded="true"] { border-color: var(--cyan); color: var(--cyan); }
.df-tb-track { flex: 1; min-width: 120px; height: 5px; border-radius: 3px; background: var(--surface-3); overflow: hidden; }
.df-tb-fill { height: 100%; width: 0%; background: var(--brand-grad); border-radius: 3px; }
.df-tb-status { font-size: 0.74rem; color: var(--ink-3); min-width: 150px; }
.df-tb-status.is-alert { color: var(--serious); }
.df-tb-status.is-ok { color: var(--good-text); }
.df-tb-clock { font-family: var(--font-mono); font-size: 0.72rem; color: var(--cyan); white-space: nowrap; margin-left: auto; }
.df-theater-foot { margin-top: 18px; text-align: center; font-size: 0.85rem; color: var(--ink-3); }

/* ---------- Residents ("How the platform runs") ---------- */
.df-residents { display: grid; grid-template-columns: repeat(7, 1fr); gap: 11px; }
.df-resident {
  border: 1px solid var(--hairline); border-radius: 13px; padding: 12px 10px 11px; text-align: center;
  transition: transform var(--dur-1), border-color var(--dur-1), box-shadow var(--dur-1);
  position: relative; overflow: hidden;
}
.df-resident:hover { transform: translateY(-3px); border-color: rgba(56,189,248,0.4); box-shadow: var(--shadow-1); }
/* the deck trick: hovering makes the resident work faster */
.df-resident:hover .chsvg * { animation-duration: 0.55s !important; }
.chsvg { width: 74px; height: 74px; margin: 0 auto 6px; display: block; }
.chsvg .st { stroke: var(--ink-2); stroke-width: 2.4; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.chsvg .ac { stroke-width: 2.4; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.chsvg .mono { font-family: var(--font-mono); }
.chsvg .ck-am { stroke: var(--warning); }   .chsvg .cf-am { fill: var(--warning); }
.chsvg .ck-cy { stroke: var(--cyan); }      .chsvg .cf-cy { fill: var(--cyan); }
.chsvg .ck-vi { stroke: var(--violet-soft); } .chsvg .cf-vi { fill: var(--violet-soft); }
.chsvg .ck-rd { stroke: var(--critical); }  .chsvg .cf-rd { fill: var(--critical); }
.chsvg .ck-gr { stroke: var(--good-text); } .chsvg .cf-gr { fill: var(--good-text); }
.chsvg .cf-mut { fill: var(--ink-3); }
.df-resident .rn { font-size: 0.82rem; font-weight: 700; color: var(--ink); display: flex; align-items: center; justify-content: center; gap: 5px; }
.df-resident .rn::before { content: "⬡"; color: var(--violet-soft); font-size: 0.8em; }
.df-resident .rj { font-size: 0.68rem; color: var(--ink-3); line-height: 1.35; margin-top: 4px; font-style: italic; }

/* character animations (ported from the DemoForgI deck, df-namespaced) */
.p-swing { animation: dfSwing 1.7s ease-in-out infinite; transform-box: fill-box; transform-origin: 15% 85%; }
.p-strike { animation: dfStrike 1.8s ease-in-out infinite; transform-box: fill-box; transform-origin: 85% 85%; }
.p-flash { animation: dfFlash 1.8s ease-in-out infinite; }
.p-nod { animation: dfNod 2s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 100%; }
.p-bob { animation: dfBob 1.6s ease-in-out infinite; }
.p-star { animation: dfStar 2.2s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 50%; }
.p-drop { animation: dfDrops 1.4s linear infinite; }
.p-drop2 { animation: dfDrops 1.4s linear 0.45s infinite; }
.p-drop3 { animation: dfDrops 1.4s linear 0.9s infinite; }
.p-grow { animation: dfGrow 1.9s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 100%; }
.p-grow2 { animation: dfGrow 1.9s ease-in-out 0.3s infinite; transform-box: fill-box; transform-origin: 50% 100%; }
.p-grow3 { animation: dfGrow 1.9s ease-in-out 0.6s infinite; transform-box: fill-box; transform-origin: 50% 100%; }
.p-sweep { animation: dfSweep 1.5s ease-in-out infinite; transform-box: fill-box; transform-origin: 20% 10%; }
.p-stamp { animation: dfStampP 1.9s ease-in-out infinite; }
.p-seal { animation: dfFlash 1.9s ease-in-out infinite; }
.p-ring { animation: dfRingy 1.6s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 90%; }
.p-sew { animation: dfSewy 1.8s ease-in-out infinite; }
.p-dash { stroke-dasharray: 4 5; animation: dfAnt 1.2s linear infinite; }
.p-wrench { animation: dfWrenchy 1.6s ease-in-out infinite; transform-box: fill-box; transform-origin: 70% 30%; }
.p-note { animation: dfNote 2.2s linear infinite; }
.p-note2 { animation: dfNote 2.2s linear 1.1s infinite; }
@keyframes dfSwing { 0%, 100% { transform: rotate(-16deg); } 50% { transform: rotate(24deg); } }
@keyframes dfStrike { 0%, 50%, 100% { transform: rotate(-42deg); } 64%, 74% { transform: rotate(10deg); } }
@keyframes dfFlash { 0%, 58%, 88%, 100% { opacity: 0; } 66%, 80% { opacity: 1; } }
@keyframes dfNod { 0%, 100% { transform: rotate(0); } 50% { transform: rotate(16deg); } }
@keyframes dfBob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
@keyframes dfStar { 0%, 10% { transform: translateX(0) rotate(0deg); opacity: 1; } 48% { transform: translateX(25px) rotate(540deg); opacity: 1; } 56% { transform: translateX(21px) rotate(600deg); } 100% { transform: translateX(0) rotate(1080deg); opacity: 1; } }
@keyframes dfDrops { 0% { transform: translateY(0); opacity: 0; } 15% { opacity: 1; } 75% { transform: translateY(11px); opacity: 0; } 100% { transform: translateY(11px); opacity: 0; } }
@keyframes dfGrow { 0%, 100% { transform: scaleY(0.35); } 50% { transform: scaleY(1); } }
@keyframes dfSweep { 0%, 100% { transform: rotate(10deg); } 50% { transform: rotate(-16deg); } }
@keyframes dfStampP { 0%, 45%, 100% { transform: translateY(-7px); } 60%, 72% { transform: translateY(1px); } }
@keyframes dfRingy { 0%, 100% { transform: rotate(-13deg); } 50% { transform: rotate(13deg); } }
@keyframes dfSewy { 0%, 100% { transform: translate(0, 0); } 25% { transform: translate(7px, 5px); } 50% { transform: translate(14px, 0); } 75% { transform: translate(21px, 5px); } }
@keyframes dfAnt { to { stroke-dashoffset: -13; } }
@keyframes dfWrenchy { 0%, 100% { transform: rotate(-22deg); } 50% { transform: rotate(18deg); } }
@keyframes dfNote { 0% { transform: translateY(2px); opacity: 0; } 25% { opacity: 1; } 85% { transform: translateY(-10px); opacity: 0; } 100% { opacity: 0; } }

/* Human gates strip */
.df-gates-strip { margin-top: clamp(28px, 4vw, 44px); text-align: center; }
.df-gates-label { display: block; margin-bottom: 14px; }
.df-gates { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-width: 980px; margin: 0 auto 16px; }
.df-gate {
  display: flex; gap: 10px; align-items: center; text-align: left;
  font-size: 0.8rem; color: var(--ink-2); padding: 11px 14px;
  border: 1px solid var(--hairline); border-radius: var(--radius-m);
}
.df-gate .g-num {
  flex: none; font-family: var(--font-mono); font-size: 0.68rem; font-weight: 700; color: var(--cyan);
  border: 1px solid rgba(56,189,248,0.4); border-radius: var(--radius-pill); padding: 2px 8px;
}
.df-gates-foot { font-size: 0.82rem; color: var(--ink-3); max-width: 640px; margin: 0 auto; }

/* ---------- Agents go to school (animated scene on the sand) ---------- */
.df-school { margin: 6px 0 18px; overflow-x: auto; }
.df-school svg { display: block; width: 100%; min-width: 760px; height: auto; }
.df-school .sk { stroke: var(--ink-2); stroke-width: 2.3; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.df-school .sk-thin { stroke: var(--ink-3); stroke-width: 1.5; fill: none; stroke-linecap: round; }
.df-school .sk-fill { fill: var(--ink-2); }
.df-school .sk-cop { stroke: var(--copper); fill: none; stroke-linecap: round; stroke-linejoin: round; }
.df-school .sk-copf { fill: var(--copper); }
.df-school .sk-link { stroke: var(--link); }
.df-school .sk-good { stroke: var(--sand-supply-chain); }
.df-school .sk-bad { stroke: var(--sand-quality); }
.df-school .sk-badf { fill: var(--sand-quality); }
.df-school .etchtxt { font-family: var(--font-mono); fill: var(--ink-3); letter-spacing: 0.16em; text-transform: uppercase; }

/* walk cycles (staggered) */
.sc-walker .legF, .sc-back .legF { animation: dfLegF 0.72s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 0%; }
.sc-walker .legB, .sc-back .legB { animation: dfLegB 0.72s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 0%; }
.sc-walker .armF, .sc-back .armF { animation: dfLegB 0.72s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 0%; }
.sc-walker .armB, .sc-back .armB { animation: dfLegF 0.72s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 0%; }
.sc-walker .wbob, .sc-back .wbob { animation: dfBobW 0.36s ease-in-out infinite; }
.sc-walker { animation: dfWalk 26s linear infinite; }
.sc-walker.w2 { animation-duration: 31s; animation-delay: -12s; }
.sc-walker.w3 { animation-duration: 22s; animation-delay: -6s; }
.sc-back { animation: dfWalkBack 21s linear infinite; animation-delay: -4s; }
.sc-write { animation: dfWrite 0.9s ease-in-out infinite; }
.sc-gavel { animation: dfStrike 2.6s ease-in-out infinite; transform-box: fill-box; transform-origin: 0% 70%; }
.sc-stamparm { animation: dfStampArm 2.4s ease-in-out infinite; }
.sc-revoke { opacity: 0; animation: dfRevoke 9s ease-in-out infinite; transform-box: fill-box; transform-origin: 50% 50%; }
@keyframes dfLegF { 0%, 100% { transform: rotate(24deg); } 50% { transform: rotate(-24deg); } }
@keyframes dfLegB { 0%, 100% { transform: rotate(-24deg); } 50% { transform: rotate(24deg); } }
@keyframes dfBobW { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-1.4px); } }
@keyframes dfWalk { 0% { transform: translateX(0); opacity: 0; } 5% { opacity: 1; } 90% { opacity: 1; } 100% { transform: translateX(420px); opacity: 0; } }
@keyframes dfWalkBack { 0% { transform: translateX(0); opacity: 0; } 8% { opacity: 1; } 88% { opacity: 1; } 100% { transform: translateX(-175px); opacity: 0; } }
@keyframes dfWrite { 0%, 100% { transform: translate(0, 0); } 30% { transform: translate(2.5px, 0.6px); } 70% { transform: translate(-1px, -0.4px); } }
@keyframes dfStampArm { 0%, 45%, 100% { transform: translateY(-6px); } 58%, 72% { transform: translateY(0); } }
@keyframes dfRevoke { 0%, 58% { opacity: 0; transform: scale(2.1); } 64%, 86% { opacity: 1; transform: scale(1); } 92%, 100% { opacity: 0; transform: scale(1); } }

/* caption chips tying the scene to the mechanism */
.df-captions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin: 0 0 10px; }
.df-captions .chip { font-size: 0.76rem; }
.df-captions .chip b { color: var(--cyan); font-weight: 600; margin-right: 5px; font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; }

/* ---------- Autonomy podium ---------- */
.df-podium { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: end; max-width: 980px; margin: clamp(22px, 3vw, 34px) auto 0; }
.df-lvl { display: flex; flex-direction: column; gap: 0; }
.df-lvl .lvl-bar {
  border-radius: var(--radius-s) var(--radius-s) 0 0; background: var(--surface-2);
  border: 1px solid var(--hairline); border-bottom: 0;
  display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; color: var(--cyan);
  transition: height var(--dur-3) var(--ease-out);
}
.df-lvl:nth-child(1) .lvl-bar { height: 52px; }
.df-lvl:nth-child(2) .lvl-bar { height: 84px; }
.df-lvl:nth-child(3) .lvl-bar { height: 116px; }
.df-lvl:nth-child(4) .lvl-bar { height: 148px; }
.df-lvl .lvl-bar.is-top { background: var(--brand-grad); color: #061018; }
.df-lvl .lvl-body { border: 1px solid var(--hairline); border-radius: 0 0 var(--radius-s) var(--radius-s); padding: 12px; }
.df-lvl h3 { font-size: 0.9rem; margin-bottom: 4px; }
.df-lvl p { font-size: 0.76rem; color: var(--ink-3); margin: 0; line-height: 1.5; }
.df-autonomy-notes { margin: 20px auto 0; font-size: 0.9rem; color: var(--ink-2); text-align: center; max-width: 720px; }

/* ---------- Validation ladder ---------- */
.df-ladder-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(26px, 4vw, 52px); align-items: start; }
.df-data-chip { display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; padding: 3px 10px; border-radius: var(--radius-pill); border: 1px solid var(--hairline); font-family: var(--font-mono); font-size: 0.68rem; color: var(--ink-3); }
.df-data-chip.is-none { color: var(--sand-supply-chain); border-color: rgba(14,122,84,0.45); }
.df-data-chip.is-enter { color: var(--copper); border-color: rgba(138,69,23,0.4); }
.df-ladder-aside { position: sticky; top: calc(var(--nav-h) + 24px); }
.df-ladder-aside .card p { font-size: 0.9rem; }
.df-ladder-aside .df-photo { margin-top: 18px; }

/* ---------- Engineered honest (icon rows on the sand) ---------- */
.df-honest-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(26px, 4vw, 52px); align-items: start; }
.df-rules { list-style: none; margin: 0; padding: 0; }
.df-rules li { display: flex; gap: 14px; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--hairline); }
.df-rules li:last-child { border-bottom: 0; }
.df-rules .r-ic {
  flex: none; width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center; color: var(--cyan); border: 1px solid var(--glass-border);
}
.df-rules strong { display: block; color: var(--ink); font-size: 0.95rem; line-height: 1.35; }
.df-rules em { display: block; font-style: normal; font-size: 0.8rem; color: var(--ink-3); line-height: 1.45; }
.df-proof { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.df-proof .stat-tile .stat-value { font-size: 1.6rem; }
.df-proof-note { grid-column: 1 / -1; font-size: 0.8rem; color: var(--ink-3); margin: 4px 0 0; }

/* ---------- CTA band ---------- */
.df-cta { text-align: center; }
.df-cta-inner { max-width: 760px; margin-inline: auto; }
.df-cta .btn { margin-top: 10px; }

/* Screen-reader only helper */
.df-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .df-twin-body { grid-template-columns: minmax(0, 1fr) 320px; }
  .df-twin-nav { display: none; }
}
@media (max-width: 1020px) {
  .df-residents { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 940px) {
  .df-hero-grid { grid-template-columns: 1fr; }
  .df-hero-grid > .reveal { align-self: auto; margin-top: 0; }
  .df-rehearsal { grid-template-columns: repeat(2, 1fr); }
  .df-rehearsal::before { display: none; }
  .df-pains { grid-template-columns: repeat(2, 1fr); }
  .df-verbs { grid-template-columns: 1fr; }
  .df-whys { grid-template-columns: repeat(2, 1fr); }
  .df-photo figcaption { text-align: left; }
  .df-ladder-grid, .df-honest-grid { grid-template-columns: 1fr; }
  .df-podium { grid-template-columns: repeat(2, 1fr); }
  .df-lvl .lvl-bar { height: 44px !important; }
  .df-gates { grid-template-columns: repeat(2, 1fr); }
  .df-ladder-aside { position: static; }
}
@media (max-width: 860px) {
  .df-twin-body { grid-template-columns: 1fr; }
  .df-twin-right { border-left: 0; border-top: 1px solid var(--hairline); }
  .df-branches { grid-template-columns: 1fr; }
  /* visually hidden, not display:none — the live region keeps announcing */
  .df-tb-status {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  }
}
@media (max-width: 700px) {
  .df-suites { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 10px; -webkit-overflow-scrolling: touch; }
  .df-suite-btn { flex: none; }
}
@media (max-width: 640px) {
  .df-pains { grid-template-columns: 1fr; }
  .df-whys { grid-template-columns: 1fr; }
  .df-kpis { grid-template-columns: 1fr; }
  .df-proof { grid-template-columns: 1fr; }
  .df-gates { grid-template-columns: 1fr; }
  .df-rehearsal { grid-template-columns: 1fr; }
  .df-residents { grid-template-columns: repeat(2, 1fr); }
  .df-captions { justify-content: flex-start; }
}