/* ──────────────────────────────────────────────────────────────────
 * Gopnik demo system — SHARED chrome + primitives
 * iter-N+14 · used by every cinematic demo + the /demo/ hub
 *
 * Per-demo CSS files extend these primitives without re-declaring
 * the top bar, controls, caption, education panel, or footer.
 * ────────────────────────────────────────────────────────────────── */

:root {
  --gnd-bg-0:        #070914;
  --gnd-bg-1:        #0c1023;
  /* Iter-N+18 M6: redirect the legacy --gnd-* canvas tokens at the
   * unified design-system tokens.  Means ecosystem/multisig/
   * tokenization/swap/ai_x402 cinematic canvases all read from the
   * same palette as the chrome.  --gnd-xrpl + --gnd-solana keep
   * their semantic names but point at --gn-blue / --gn-purple-dim. */
  --gnd-line:        var(--gn-stroke-soft,   rgba(255, 255, 255, 0.07));
  --gnd-line-strong: var(--gn-stroke-strong, rgba(255, 255, 255, 0.18));
  --gnd-ink:         var(--gn-ink,       #f4f7fb);
  --gnd-muted:       var(--gn-ink-muted, rgba(244, 247, 251, 0.62));
  --gnd-soft:        var(--gn-ink-soft,  rgba(244, 247, 251, 0.42));
  --gnd-xrpl:        var(--gn-blue,      #5fb3ff);
  --gnd-solana:      var(--gn-purple-dim,#9b62ff);
  --gnd-ok:          var(--gn-green,     #8dd07a);
  --gnd-warn:        #d5b463;
  --gnd-fail:        #d18079;
  --gnd-flash:       var(--gn-gold,      #ffd86b);
}

html, body { height: 100%; }
.gnd-body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "SF Pro Display",
               "Segoe UI", system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11", "tnum";
  color: var(--gnd-ink);
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(95, 179, 255, 0.18), transparent 70%),
    radial-gradient(1100px 600px at 80% 110%, rgba(155, 98, 255, 0.16), transparent 70%),
    linear-gradient(180deg, var(--gnd-bg-0), var(--gnd-bg-1));
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Top bar (sticky, glassmorphic) ─────────────────────────────── */
.gnd-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--gnd-line);
  backdrop-filter: blur(12px);
  background: rgba(7, 9, 20, 0.6);
  position: sticky; top: 0; z-index: 50;
}
.gnd-brand {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gnd-ink);
  text-decoration: none;
}
.gnd-brand .gnd-mark {
  color: var(--gnd-xrpl);
  filter: drop-shadow(0 0 8px rgba(95, 179, 255, 0.7));
  margin-right: 6px;
}
.gnd-topnav { display: flex; align-items: center; gap: 12px; }
.gnd-pill {
  padding: 3px 10px;
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: linear-gradient(90deg, var(--gnd-xrpl), var(--gnd-solana));
  color: #fff;
  border-radius: 999px;
  text-transform: uppercase;
}
.gnd-subbrand { color: var(--gnd-muted); font-size: 0.9em; letter-spacing: 0.02em; }
.gnd-topright { display: flex; gap: 8px; }

.gnd-btn {
  font-family: inherit;
  font-size: 0.86rem;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--gnd-ink);
  border: 1px solid var(--gnd-line);
  border-radius: 8px;
  cursor: pointer;
  transition: background 160ms ease, transform 120ms ease;
}
.gnd-btn:hover  { background: rgba(255, 255, 255, 0.10); }
.gnd-btn:active { transform: scale(0.97); }
.gnd-btn--ghost { background: transparent; }

/* ── Main wrapper + hero ───────────────────────────────────────── */
.gnd-main { max-width: 1400px; margin: 0 auto; padding: 32px 28px 80px; }
.gnd-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
  align-items: end;
}
.gnd-h1 {
  font-size: clamp(1.6rem, 2.6vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 700;
}
.gnd-h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--gnd-xrpl), var(--gnd-solana));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.gnd-lede {
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--gnd-muted);
  margin: 0;
  max-width: 60ch;
}
.gnd-meta-card {
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--gnd-line);
  border-radius: 14px;
  backdrop-filter: blur(8px);
}
.gnd-eyebrow {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(95, 179, 255, 0.15);
  color: var(--gnd-xrpl);
  border-radius: 999px;
  font-size: 0.78em;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Canvas + SVG primitives ───────────────────────────────────── */
.gnd-canvas {
  position: relative;
  background: linear-gradient(180deg,
              rgba(255, 255, 255, 0.025),
              rgba(255, 255, 255, 0.005));
  border: 1px solid var(--gnd-line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.45),
              0 0 60px rgba(95, 179, 255, 0.25);
  margin-bottom: 28px;
  overflow: hidden;
}
.gnd-canvas svg { width: 100%; height: auto; display: block; }

.gnd-path {
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 1.5;
  fill: none;
  transition: stroke 240ms ease, stroke-width 240ms ease;
}
.gnd-path--active {
  stroke: var(--gnd-flash);
  stroke-width: 2.2;
  filter: drop-shadow(0 0 8px rgba(255, 216, 107, 0.6));
}
.gn-particle {
  fill: var(--gnd-flash);
  filter: drop-shadow(0 0 6px rgba(255, 216, 107, 0.8));
}
.gn-pulse-label {
  fill: var(--gnd-flash);
  font-size: 11px;
  font-family: ui-monospace, monospace;
  letter-spacing: 0.04em;
  animation: gnd-fade 2s ease-out;
}
@keyframes gnd-fade {
  0%   { opacity: 0; transform: translateY(-4px); }
  20%  { opacity: 1; transform: translateY(0); }
  85%  { opacity: 1; }
  100% { opacity: 0; }
}
.gn-amount-flash { animation: gnd-amount-flash 0.6s ease-out; }
@keyframes gnd-amount-flash {
  0%   { fill: var(--gnd-flash); filter: drop-shadow(0 0 8px var(--gnd-flash)); }
  100% { /* back to inherited */ }
}

/* Confetti */
.gn-confetti {
  fill: var(--gnd-flash);
  animation: gnd-confetti-fall 2.6s ease-in forwards;
  animation-delay: var(--gn-confetti-delay, 0s);
}
@keyframes gnd-confetti-fall {
  0%   { opacity: 0; transform: translateY(-30px) translateX(0); }
  20%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(380px) translateX(var(--gn-confetti-dx, 0)); }
}

/* ── Caption + progress ──────────────────────────────────────── */
.gnd-caption {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--gnd-line);
}
.gnd-status {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--gnd-ink);
  border-radius: 999px;
  font-family: ui-monospace, monospace;
  font-size: 0.74em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.gnd-status[data-state="done"]     { background: rgba(141, 208, 122, 0.20); color: var(--gnd-ok); }
.gnd-status[data-state="failed"]   { background: rgba(209, 128, 121, 0.20); color: var(--gnd-fail); }
.gnd-status[data-state="attested"] { background: rgba(95, 179, 255, 0.20); color: var(--gnd-xrpl); }
.gnd-scene-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}
.gnd-scene-sub {
  margin: 6px 0 0;
  color: var(--gnd-muted);
  font-size: 0.95em;
}
.gnd-progress-wrap { min-width: 240px; text-align: right; }
.gnd-progress-label {
  display: inline-block;
  font-size: 0.78em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gnd-soft);
  margin-bottom: 6px;
}
.gnd-progress {
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}
.gnd-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gnd-xrpl), var(--gnd-solana));
  border-radius: inherit;
  transition: width 560ms cubic-bezier(.2,.8,.3,1);
}

/* ── Education panel (3-col) ─────────────────────────────────── */
.gnd-edu-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}
.gnd-edu {
  padding: 22px 22px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--gnd-line);
  border-radius: 16px;
  backdrop-filter: blur(8px);
}
.gnd-edu-head {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 12px;
}
.gnd-edu-head h3 {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 600;
}
.gnd-edu-icon { font-size: 1.2rem; }
.gnd-teach {
  margin: 0;
  color: var(--gnd-muted);
  font-size: 0.95em;
  line-height: 1.55;
}
.gnd-defences { margin: 0; padding: 0; list-style: none; }
.gnd-defences li {
  padding: 8px 0;
  border-top: 1px solid var(--gnd-line);
  color: var(--gnd-muted);
  font-size: 0.9em;
  line-height: 1.4;
}
.gnd-defences li:first-child { border-top: 0; }
.gnd-defences li strong { color: var(--gnd-ink); margin-right: 6px; }

/* ── Footer ─────────────────────────────────────────────────── */
.gnd-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 28px;
  border-top: 1px solid var(--gnd-line);
  color: var(--gnd-soft);
  font-size: 0.86em;
}
.gnd-footer-link {
  color: var(--gnd-xrpl);
  text-decoration: none;
  border-bottom: 1px dashed rgba(95, 179, 255, 0.45);
  padding-bottom: 1px;
}

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .gnd-hero    { grid-template-columns: 1fr; gap: 20px; }
  .gnd-edu-row { grid-template-columns: 1fr; }
  .gnd-caption { flex-direction: column; align-items: stretch; }
  .gnd-progress-wrap { text-align: left; }
  .gnd-topbar  { padding: 14px 16px; }
  .gnd-main    { padding: 22px 16px 60px; }
  .gnd-canvas  { padding: 14px; border-radius: 16px; }
}

/* ── Reduced motion ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .gn-particle, .gn-confetti { display: none; }
}

/* ════════════════════════════════════════════════════════════════════
 * Iter-N+18 (M1) — v2 demo UI: persona picker, dual-track captions,
 * glossary modal, business tab, per-scene "why this matters" card.
 *
 * All v2 selectors are additive; v1 chrome keeps rendering unchanged
 * when the engine doesn't find these elements.
 * ══════════════════════════════════════════════════════════════════ */

/* ── Persona / scenario picker (chip-strip with hero illustrations) */
.gn-scenario-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 20px 0 28px;
}
.gn-scenario-chip {
  position: relative;
  display: flex; flex-direction: column;
  text-align: left;
  background: linear-gradient(160deg, rgba(20,20,36,.85), rgba(12,12,24,.92));
  border: 1px solid rgba(139,92,246,.22);
  border-radius: 16px;
  color: var(--gnd-ink);
  cursor: pointer;
  overflow: hidden;
  padding: 0;
  transition: transform .2s ease, border-color .2s, box-shadow .25s;
  font: inherit;
}
.gn-scenario-chip:hover {
  transform: translateY(-3px);
  border-color: rgba(167,139,250,.55);
  box-shadow: 0 18px 40px -24px rgba(167,139,250,.5);
}
.gn-scenario-chip.is-active {
  border-color: rgba(252,211,77,.55);
  box-shadow:
    0 0 0 1px rgba(252,211,77,.4),
    0 18px 50px -28px rgba(252,211,77,.55);
}
.gn-scenario-chip-art {
  position: relative;
  height: 110px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.gn-scenario-chip-art::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom,
              rgba(10,12,22,0) 35%, rgba(10,12,22,.78) 100%);
}
.gn-scenario-chip-glyph {
  position: absolute; left: 14px; top: 14px; z-index: 1;
  font-size: 1.6rem;
  filter: drop-shadow(0 4px 14px rgba(167,139,250,.5));
}
.gn-scenario-chip-body {
  padding: 14px 16px 16px;
  display: flex; flex-direction: column; gap: 6px;
}
.gn-scenario-chip-persona {
  font-size: 0.68rem; font-weight: 800;
  letter-spacing: .06em; text-transform: uppercase;
  color: #c4b5fd;
}
.gn-scenario-chip.is-active .gn-scenario-chip-persona { color: #fcd34d; }
.gn-scenario-chip-name {
  font-size: 1rem; font-weight: 700; color: #f8fafc;
  margin: 0;
}
.gn-scenario-chip-pain {
  font-size: 0.82rem; color: #cbd5e1; line-height: 1.45;
  margin: 0;
}

/* ── Dual-track caption (plain English / under the hood) ────────── */
.gn-caption-block {
  position: relative;
  padding: 16px 18px;
  background: rgba(16,16,32,.75);
  border: 1px solid rgba(139,92,246,.16);
  border-radius: 12px;
  margin-top: 12px;
}
.gn-caption-track {
  display: none;
  margin: 0;
  font-size: 0.92rem; line-height: 1.55;
}
.gn-caption-track.is-active { display: block; }
#gn-caption-plain { color: var(--gnd-ink); }
#gn-caption-tech  { color: #c4b5fd; font-family: "JetBrains Mono", Menlo, monospace; font-size: 0.86rem; }
.gn-caption-toggle {
  position: absolute; top: 10px; right: 12px;
  background: rgba(139,92,246,.12);
  border: 1px solid rgba(139,92,246,.32);
  color: #c4b5fd;
  font-size: 0.74rem; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.gn-caption-toggle:hover { background: rgba(139,92,246,.22); color: #f8fafc; }
.gn-caption-toggle[data-track="tech"] {
  background: rgba(34,211,238,.12);
  border-color: rgba(34,211,238,.32);
  color: #67e8f9;
}

/* ── Per-scene "why this matters" callout ───────────────────────── */
.gn-scene-business {
  display: none;
  margin-top: 12px;
  padding: 14px 16px;
  background: linear-gradient(135deg, rgba(52,211,153,.10), rgba(34,211,238,.05));
  border: 1px solid rgba(52,211,153,.28);
  border-radius: 12px;
}
.gn-scene-business.is-visible { display: block; }
.gn-scene-biz-h {
  margin: 0 0 4px;
  font-size: 0.82rem; font-weight: 800;
  letter-spacing: .04em; text-transform: uppercase;
  color: #6ee7b7;
}
.gn-scene-biz-detail {
  margin: 0;
  font-size: 0.9rem; color: #d1fae5; line-height: 1.5;
}
.gn-scene-biz-metric {
  margin-top: 6px;
  display: inline-block;
  padding: 3px 10px;
  background: rgba(52,211,153,.18);
  color: #34d399;
  font-size: 0.78rem; font-weight: 700;
  border-radius: 999px;
  letter-spacing: .02em;
}

/* ── Business value tab (scenario-level) ────────────────────────── */
.gn-tabs {
  display: flex; gap: 4px;
  border-bottom: 1px solid rgba(139,92,246,.18);
  margin-top: 22px;
}
.gn-tab-button {
  background: transparent; border: 0;
  color: #94a3b8; font-weight: 600; font-size: 0.86rem;
  padding: 9px 16px; cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.gn-tab-button:hover { color: #c4b5fd; }
.gn-tab-button.is-active {
  color: #f1f5f9;
  border-bottom-color: #a78bfa;
}
.gn-tab-panel { display: none; padding: 20px 0; }
.gn-tab-panel.is-active { display: block; }

#gn-business-tab {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.gn-biz-card {
  padding: 18px 20px;
  background: rgba(16,16,32,.85);
  border: 1px solid rgba(139,92,246,.16);
  border-radius: 14px;
  display: flex; flex-direction: column; gap: 8px;
}
.gn-biz-card-h {
  margin: 0; color: #f1f5f9; font-size: 0.98rem; font-weight: 700;
}
.gn-biz-card-detail {
  margin: 0; color: #cbd5e1; font-size: 0.86rem; line-height: 1.5;
}
.gn-biz-card-metric {
  margin-top: auto;
  display: inline-block; align-self: flex-start;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(252,211,77,.10);
  color: #fcd34d; font-size: 0.78rem; font-weight: 700;
}

/* ── Glossary modal ─────────────────────────────────────────────── */
.gn-glossary-trigger {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(34,211,238,.10);
  border: 1px solid rgba(34,211,238,.32);
  color: #67e8f9;
  font-size: 0.82rem; font-weight: 700;
  padding: 6px 14px; border-radius: 999px;
  cursor: pointer; transition: background .15s;
}
.gn-glossary-trigger::before { content: "📖"; }
.gn-glossary-trigger:hover { background: rgba(34,211,238,.20); color: #f1f5f9; }

.gn-glossary-modal {
  display: none;
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(2, 6, 23, .82);
  backdrop-filter: blur(6px);
  align-items: center; justify-content: center;
  padding: 24px;
}
.gn-glossary-modal.is-open { display: flex; }
.gn-glossary-dialog {
  width: min(560px, 100%);
  max-height: 80vh;
  background: linear-gradient(155deg, rgba(20,20,36,.98), rgba(12,12,24,.99));
  border: 1px solid rgba(139,92,246,.32);
  border-radius: 18px;
  padding: 24px 26px 26px;
  overflow: auto;
  box-shadow: 0 40px 100px -40px rgba(167,139,250,.55);
}
.gn-glossary-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.gn-glossary-head h3 { margin: 0; color: #f1f5f9; font-size: 1.1rem; }
.gn-glossary-close {
  background: rgba(139,92,246,.10);
  border: 1px solid rgba(139,92,246,.28);
  color: #c4b5fd;
  width: 32px; height: 32px; border-radius: 999px;
  cursor: pointer; font-size: 1rem; line-height: 1;
}
.gn-gloss-term {
  font-weight: 700; color: #f8fafc; margin-top: 10px;
}
.gn-gloss-def {
  margin: 4px 0 8px;
  color: #cbd5e1; font-size: 0.88rem; line-height: 1.5;
}
.gn-gloss-deeper { color: #94a3b8; font-size: 0.82rem; }

/* ── Hero illustration frame (scenario picker uses fallback gradient
 *    + emoji until the Canva PNG is on disk) ───────────────────── */
.gn-scenario-chip-art--fallback {
  display: flex; align-items: center; justify-content: center;
}
.gn-scenario-chip-art--fallback .gn-scenario-chip-fallback-glyph {
  font-size: 3rem;
  filter: drop-shadow(0 6px 18px rgba(255,255,255,.25));
}