/* ===========================================================================
 * TerraNexus Performance Race Demo — stylesheet (3-engine + environmental reveal)
 * =========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@300;400;500&display=swap');

/* ── tokens ─────────────────────────────────────────────────────────────── */
.tn-demo {
  --tn-tone-tn: #6ee7b7;
  --tn-tone-tn-glow: #a7f3d0;
  --tn-tone-h3: #eab308;
  --tn-tone-h3-glow: #fde047;
  --tn-tone-conv: #ef4444;
  --tn-tone-conv-glow: #fca5a5;
  --tn-tone-proj: #f87171;
  --tn-tone-err: #f87171;
  --tn-bg: #0b1115;
  --tn-surface: rgba(15, 23, 42, 0.6);
  --tn-border: rgba(71, 85, 105, 0.35);
  --tn-text-muted: #64748b;
  --tn-text-secondary: #94a3b8;
  --tn-text-primary: #e2e8f0;

  background: var(--tn-bg);
  color: var(--tn-text-primary);
  padding: 1.5rem;
  border-radius: 0.5rem;
}

.tn-demo, .tn-demo * { font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif; }
.tn-demo .tn-mono, .tn-demo .tn-readout, .tn-demo .tn-eyebrow,
.tn-demo .tn-readout-label, .tn-demo .tn-eyebrow-soft,
.tn-demo .tn-size-ticks, .tn-demo .tn-panel-paradigm,
.tn-demo .tn-impact-value { font-family: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace; }

/* ── header ─────────────────────────────────────────────────────────────── */
.tn-demo-header { border-bottom: 1px solid var(--tn-border); }
.tn-demo-title {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 300; letter-spacing: -0.01em;
  color: var(--tn-text-primary); margin: 0; line-height: 1.3;
}
.tn-title-accent-conv { color: var(--tn-tone-conv); }
.tn-title-accent-h3   { color: var(--tn-tone-h3); }
.tn-title-accent-tn   { color: var(--tn-tone-tn); }

.tn-eyebrow {
  font-size: 0.65rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--tn-text-muted); font-weight: 400;
}
.tn-eyebrow-soft { font-size: 0.7rem; color: var(--tn-text-muted); margin-top: 0.25rem; }
.tn-meta { font-size: 0.65rem; color: var(--tn-text-muted); letter-spacing: 0.05em; }
.tn-demo-footer {
  font-size: 0.65rem; letter-spacing: 0.15em; color: var(--tn-text-muted);
  padding-top: 0.75rem; border-top: 1px solid var(--tn-border);
}

/* ── source badge ───────────────────────────────────────────────────────── */
.tn-badge {
  display: inline-flex; align-items: center;
  padding: 0.3rem 0.55rem; font-size: 0.6rem; letter-spacing: 0.18em;
  border: 1px solid; border-radius: 2px; white-space: nowrap;
}
.tn-badge-api      { color: var(--tn-tone-tn); border-color: rgba(110, 231, 183, 0.4); background: rgba(110, 231, 183, 0.05); }
.tn-badge-window   { color: #67e8f9; border-color: rgba(103, 232, 249, 0.4); background: rgba(103, 232, 249, 0.05); }
.tn-badge-fallback { color: var(--tn-tone-h3); border-color: rgba(234, 179, 8, 0.4); background: rgba(234, 179, 8, 0.05); }
.tn-badge-loading  { color: var(--tn-text-secondary); border-color: rgba(100, 116, 139, 0.4); background: rgba(100, 116, 139, 0.05); }

/* ── cards & controls ───────────────────────────────────────────────────── */
.tn-demo .tn-card { background: var(--tn-surface); border: 1px solid var(--tn-border); }

.tn-demo .tn-mode-btn {
  font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase;
  padding: 0.4rem 0.8rem; background: #111827;
  border: 1px solid var(--tn-border); color: var(--tn-text-muted);
  transition: all 0.15s ease;
}
.tn-demo .tn-mode-btn:hover:not(:disabled) { background: #1e293b; color: var(--tn-text-primary); }
.tn-demo .tn-mode-btn.active {
  background: rgba(110, 231, 183, 0.12); color: var(--tn-tone-tn);
  border-color: rgba(110, 231, 183, 0.4);
}
.tn-demo .tn-mode-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.tn-mode-notice { font-size: 0.7rem; font-family: "IBM Plex Mono", monospace; }
.tn-mode-notice-warn { color: var(--tn-tone-h3); }
.tn-mode-notice-err  { color: var(--tn-tone-err); }

.tn-demo .tn-run-btn {
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; font-weight: 500;
  padding: 0.55rem 1.1rem; background: var(--tn-tone-tn); color: #0b1115;
  border: none; border-radius: 2px; white-space: nowrap;
}
.tn-demo .tn-run-btn:hover:not(:disabled) { background: var(--tn-tone-tn-glow); color: #0b1115; }
.tn-demo .tn-run-btn:disabled { background: #1e293b; color: var(--tn-text-muted); }
.tn-demo .tn-reset-btn {
  font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase;
  padding: 0.55rem 0.9rem; border-radius: 2px;
}

.tn-demo .form-select.tn-mono {
  background-color: #020617; border-color: var(--tn-border); color: var(--tn-text-primary);
  font-size: 0.85rem;
}
.tn-demo .tn-range { accent-color: var(--tn-tone-tn); }

.tn-size-value { color: var(--tn-tone-tn); font-size: 0.85rem; font-weight: 500; }

.tn-size-ticks {
  display: flex; justify-content: space-between; margin-top: 0.25rem;
  font-size: 0.65rem; color: #475569; font-variant-numeric: tabular-nums;
  overflow: hidden;
}
.tn-size-ticks > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 12ch; }
.tn-size-ticks .active   { color: var(--tn-tone-tn); }
.tn-size-ticks .disabled { color: #334155; text-decoration: line-through; }

/* ── race panels ────────────────────────────────────────────────────────── */
.tn-panel {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.85) 0%, rgba(2, 6, 23, 0.9) 100%);
  transition: border-color 0.25s ease; height: 100%;
}
.tn-panel-conv { border-color: rgba(239, 68, 68, 0.25); }
.tn-panel-h3   { border-color: rgba(234, 179, 8, 0.25); }
.tn-panel-tn   { border-color: rgba(52, 211, 153, 0.25); }
.tn-panel[data-status="PROJECTED"] { border-color: rgba(248, 113, 113, 0.35); }
.tn-panel[data-status="ERROR"]     { border-color: rgba(248, 113, 113, 0.5); }

.tn-panel-tn::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(110, 231, 183, 1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 231, 183, 1) 1px, transparent 1px);
  background-size: 28px 28px; opacity: 0.035; pointer-events: none;
}
.tn-panel-tn[data-status="DONE"]::after {
  content: ''; position: absolute; inset: 0;
  box-shadow: inset 0 0 60px rgba(110, 231, 183, 0.2);
  pointer-events: none; animation: tn-pulse 2s ease-in-out infinite;
}

/* H3 gets a hexagonal mesh — pointy-top hexagons tiled at ~32px width.
   SVG-inline so the lines are crisp at any zoom. Pattern is a single cell
   shifted across an x=48/y=28 grid to produce interlocking hexes. */
.tn-panel-h3::before {
  content: ''; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='56' viewBox='0 0 48 56'%3E%3Cg fill='none' stroke='%23eab308' stroke-width='1'%3E%3Cpath d='M12 0 L24 7 L24 21 L12 28 L0 21 L0 7 Z'/%3E%3Cpath d='M36 0 L48 7 L48 21 L36 28 L24 21 L24 7 Z'/%3E%3Cpath d='M12 28 L24 35 L24 49 L12 56 L0 49 L0 35 Z'/%3E%3Cpath d='M36 28 L48 35 L48 49 L36 56 L24 49 L24 35 Z'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 48px 56px;
  opacity: 0.05; pointer-events: none;
}
.tn-panel-h3[data-status="DONE"]::after {
  content: ''; position: absolute; inset: 0;
  box-shadow: inset 0 0 60px rgba(234, 179, 8, 0.15);
  pointer-events: none; animation: tn-pulse 2s ease-in-out infinite;
}

.tn-corner {
  position: absolute; width: 0.75rem; height: 0.75rem; z-index: 2; pointer-events: none;
}
.tn-corner-tl { top: 0; left: 0;  border-top: 1px solid; border-left: 1px solid; }
.tn-corner-tr { top: 0; right: 0; border-top: 1px solid; border-right: 1px solid; }
.tn-corner-bl { bottom: 0; left: 0;  border-bottom: 1px solid; border-left: 1px solid; }
.tn-corner-br { bottom: 0; right: 0; border-bottom: 1px solid; border-right: 1px solid; }
.tn-panel-conv .tn-corner { border-color: rgba(239, 68, 68, 0.5); }
.tn-panel-h3   .tn-corner { border-color: rgba(234, 179, 8, 0.5); }
.tn-panel-tn   .tn-corner { border-color: rgba(52, 211, 153, 0.5); }

.tn-panel-title {
  font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  margin: 0; font-weight: 500;
}
.tn-panel-conv .tn-panel-title { color: var(--tn-tone-conv-glow); }
.tn-panel-h3   .tn-panel-title { color: var(--tn-tone-h3-glow); }
.tn-panel-tn   .tn-panel-title { color: var(--tn-tone-tn); }

.tn-panel-subtitle {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.65rem; color: var(--tn-text-muted);
  line-height: 1.4;
}

/* Paradigm label — a separate, more prominent line below the subtitle */
.tn-panel-paradigm {
  font-size: 0.7rem; letter-spacing: 0.04em;
  padding: 0.25rem 0.5rem; border-radius: 2px;
  display: inline-block;
  background: rgba(2, 6, 23, 0.5);
  border-left: 2px solid;
}
.tn-panel-conv .tn-panel-paradigm { color: var(--tn-tone-conv-glow); border-left-color: var(--tn-tone-conv); }
.tn-panel-h3   .tn-panel-paradigm { color: var(--tn-tone-h3-glow);   border-left-color: var(--tn-tone-h3); }
.tn-panel-tn   .tn-panel-paradigm { color: var(--tn-tone-tn-glow);   border-left-color: var(--tn-tone-tn); }

.tn-status-pill {
  font-size: 0.6rem; letter-spacing: 0.2em;
  padding: 0.2rem 0.5rem; border: 1px solid; border-radius: 2px;
  font-family: "IBM Plex Mono", monospace;
}
.tn-status-pill[data-status="IDLE"]  { background: rgba(100, 116, 139, 0.1); color: #475569; border-color: rgba(71, 85, 105, 0.4); }
.tn-status-pill[data-status="DONE"]  { background: rgba(110, 231, 183, 0.15); color: var(--tn-tone-tn-glow); border-color: rgba(110, 231, 183, 0.6); }
.tn-status-pill[data-status="ERROR"] { background: rgba(248, 113, 113, 0.15); color: var(--tn-tone-err); border-color: rgba(248, 113, 113, 0.5); }

.tn-panel-conv .tn-status-pill[data-status="RUNNING"]   { background: rgba(239, 68, 68, 0.1); color: var(--tn-tone-conv-glow); border-color: rgba(239, 68, 68, 0.4); animation: tn-pulse 1.5s ease-in-out infinite; }
.tn-panel-conv .tn-status-pill[data-status="PROJECTED"] { background: rgba(248, 113, 113, 0.1); color: var(--tn-tone-proj); border-color: rgba(248, 113, 113, 0.4); animation: tn-pulse 1.5s ease-in-out infinite; }
.tn-panel-conv .tn-status-pill[data-status="DONE"]      { background: rgba(239, 68, 68, 0.1); color: var(--tn-tone-conv-glow); border-color: rgba(239, 68, 68, 0.5); }
.tn-panel-h3   .tn-status-pill[data-status="RUNNING"]   { background: rgba(234, 179, 8, 0.1); color: var(--tn-tone-h3); border-color: rgba(234, 179, 8, 0.4); animation: tn-pulse 1.5s ease-in-out infinite; }
.tn-panel-h3   .tn-status-pill[data-status="DONE"]      { background: rgba(234, 179, 8, 0.1); color: var(--tn-tone-h3-glow); border-color: rgba(234, 179, 8, 0.5); }
.tn-panel-tn   .tn-status-pill[data-status="RUNNING"]   { background: rgba(110, 231, 183, 0.1); color: var(--tn-tone-tn); border-color: rgba(110, 231, 183, 0.4); animation: tn-pulse 1.5s ease-in-out infinite; }

/* digital readouts — three-col with smaller font so energy fits */
.tn-readout-label {
  font-size: 0.52rem; letter-spacing: 0.25em;
  color: var(--tn-text-muted); text-transform: uppercase; margin-bottom: 0.3rem;
}
.tn-readout {
  font-size: clamp(1.1rem, 1.9vw, 1.5rem);
  font-weight: 300; font-variant-numeric: tabular-nums; line-height: 1;
}
.tn-readout-sub {
  font-size: 0.6rem; font-family: "IBM Plex Mono", monospace;
  color: var(--tn-text-muted); font-variant-numeric: tabular-nums;
  margin-top: 0.3rem;
}
.tn-panel-conv .tn-readout { color: var(--tn-tone-conv); text-shadow: 0 0 18px rgba(239, 68, 68, 0.4); }
.tn-panel-h3   .tn-readout { color: var(--tn-tone-h3);   text-shadow: 0 0 18px rgba(234, 179, 8, 0.4); }
.tn-panel-tn   .tn-readout { color: var(--tn-tone-tn);   text-shadow: 0 0 18px rgba(110, 231, 183, 0.4); }
.tn-panel-conv[data-status="PROJECTED"] .tn-readout { color: var(--tn-tone-proj); text-shadow: 0 0 18px rgba(248, 113, 113, 0.4); }
.tn-panel-conv[data-status="ERROR"] .tn-readout,
.tn-panel-h3[data-status="ERROR"] .tn-readout,
.tn-panel-tn[data-status="ERROR"] .tn-readout { color: var(--tn-tone-err); text-shadow: 0 0 18px rgba(248, 113, 113, 0.4); }
.tn-panel-tn[data-status="DONE"] .tn-readout { color: var(--tn-tone-tn-glow); }

/* progress */
.tn-progress {
  position: relative; height: 6px;
  background: rgba(2, 6, 23, 0.8); border: 1px solid #1e293b;
  border-radius: 2px; overflow: hidden;
}
.tn-progress-bar {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 0; transition: width 75ms linear;
}
.tn-panel-conv .tn-progress-bar {
  background: var(--tn-tone-conv); box-shadow: 0 0 12px var(--tn-tone-conv);
  background-image: repeating-linear-gradient(45deg, transparent, transparent 4px, rgba(0,0,0,0.2) 4px, rgba(0,0,0,0.2) 8px);
}
.tn-panel-conv[data-status="PROJECTED"] .tn-progress-bar { background-color: var(--tn-tone-proj); box-shadow: 0 0 12px var(--tn-tone-proj); }
.tn-panel-h3   .tn-progress-bar { background: var(--tn-tone-h3); box-shadow: 0 0 12px var(--tn-tone-h3); }
.tn-panel-tn   .tn-progress-bar { background: var(--tn-tone-tn); box-shadow: 0 0 12px var(--tn-tone-tn); }

.tn-progress.indeterminate .tn-progress-bar {
  width: 33% !important; animation: tn-indeterminate 1.4s ease-in-out infinite; transition: none;
}
@keyframes tn-indeterminate { 0% { transform: translateX(-100%); } 100% { transform: translateX(400%); } }

.tn-heartbeat { display: flex; align-items: flex-end; gap: 2px; height: 16px; margin-top: 0.5rem; }
.tn-hb-bar {
  display: inline-block; width: 3px; background: #1e293b;
  transition: background 0.2s; opacity: 0.4;
}
.tn-heartbeat.active .tn-hb-bar { animation: tn-hb 0.9s ease-in-out infinite; }
.tn-panel-conv .tn-heartbeat.active .tn-hb-bar { background: var(--tn-tone-conv); box-shadow: 0 0 6px var(--tn-tone-conv); opacity: 0.85; }
.tn-panel-h3   .tn-heartbeat.active .tn-hb-bar { background: var(--tn-tone-h3);   box-shadow: 0 0 6px var(--tn-tone-h3); opacity: 0.85; }
.tn-panel-tn   .tn-heartbeat.active .tn-hb-bar { background: var(--tn-tone-tn);   box-shadow: 0 0 6px var(--tn-tone-tn); opacity: 0.85; }
@keyframes tn-hb { 0%, 100% { height: 20%; } 40% { height: 80%; } 60% { height: 45%; } }

/* ── translation band ───────────────────────────────────────────────────── */
.tn-translation {
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.7) 0%, rgba(6, 78, 59, 0.15) 50%, rgba(15, 23, 42, 0.7) 100%);
  border-color: rgba(52, 211, 153, 0.25);
}
.tn-speedup-value {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300; color: var(--tn-tone-tn);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 30px rgba(110, 231, 183, 0.4);
  line-height: 1;
}
.tn-speedup-value-h3 { color: var(--tn-tone-tn); text-shadow: 0 0 30px rgba(110, 231, 183, 0.3); }
.tn-speedup-value-h3-small {
  color: var(--tn-tone-h3); font-size: clamp(1.5rem, 3vw, 2.25rem);
  text-shadow: 0 0 20px rgba(234, 179, 8, 0.3);
}
.tn-accent-conv { color: var(--tn-tone-conv); }
.tn-accent-h3   { color: var(--tn-tone-h3); }
.tn-accent-tn   { color: var(--tn-tone-tn); }

/* ── post-race environmental reveal ─────────────────────────────────────── */
.tn-reveal {
  max-height: 0; opacity: 0;
  overflow: hidden; pointer-events: none;
  transition: max-height 0.8s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.5s ease 0.2s;
}
.tn-reveal.tn-reveal-visible {
  max-height: 1200px; opacity: 1; pointer-events: auto;
}

.tn-impact-card {
  border-color: rgba(52, 211, 153, 0.35);
  background: linear-gradient(135deg, rgba(6, 78, 59, 0.15) 0%, rgba(15, 23, 42, 0.7) 40%, rgba(15, 23, 42, 0.7) 100%);
  position: relative; overflow: hidden;
}
.tn-impact-card::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at top right, rgba(110, 231, 183, 0.08), transparent 40%),
    radial-gradient(circle at bottom left, rgba(52, 211, 153, 0.05), transparent 35%);
  pointer-events: none;
}

.tn-impact-title {
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  font-weight: 300; letter-spacing: -0.01em;
  color: var(--tn-text-primary); margin: 0; line-height: 1.3;
}

.tn-impact-metric {
  padding: 1rem; background: rgba(2, 6, 23, 0.4);
  border: 1px solid var(--tn-border); border-radius: 3px;
  height: 100%;
}
.tn-impact-value {
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 300; font-variant-numeric: tabular-nums; line-height: 1;
  margin-bottom: 0.4rem;
}
.tn-impact-positive { color: var(--tn-tone-tn-glow); text-shadow: 0 0 20px rgba(110, 231, 183, 0.3); }

.tn-impact-footnote {
  font-family: "IBM Plex Mono", monospace;
}

/* ── animations ─────────────────────────────────────────────────────────── */
@keyframes tn-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }