/* ============================================================================
   ZKELETON // NORMALIZATION ENGINE - demo styles
   Design source of truth: zkeleton.com (globals.css tokens) + the terminal
   aesthetic of the live pipeline demo. Space Grotesk display, Inter body.
============================================================================ */

:root {
  --bg: #0d0d0f;
  --bg-deep: #000;
  --surface: #161618;
  --surface-2: #1d1d20;
  --surface-3: #232327;
  --text: #f1f1f1;
  --muted: #8e8e93;
  --faint: #5a5a5f;
  --fainter: #444446;
  --border: #272729;
  --border-strong: #363638;
  --accent: #e63946;
  --accent-alt: #c22e3a;
  --accent-dim: #b32430;
  --steel: #9db0c5;

  /* lineage semantics */
  --lin-agreed: #9db0c5;     /* steel  : sources agree */
  --lin-reconciled: #e63946; /* crimson: conflict resolved */
  --lin-union: #6fc3a3;      /* teal   : added by one source */
  --lin-source: #8e8e93;     /* neutral: single source */

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --ease: cubic-bezier(0.2, 0, 0, 1);
  --maxw: 1440px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, #ffffff07 1px, transparent 1px),
    linear-gradient(#ffffff07 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 35%, transparent 100%);
}

.wrap { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.display { font-family: var(--font-display); letter-spacing: -0.025em; font-weight: 600; line-height: 1.05; }
.accent { color: var(--accent); }
.eyebrow {
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  font-size: 0.72rem;
  font-weight: 500;
}
a { color: inherit; text-decoration: none; }

/* ============================ ENV / TERMINAL BAR ======================== */
.envbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 9px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-deep);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.env-left, .env-right { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.env-dot { width: 7px; height: 7px; border-radius: 1px; background: var(--accent); box-shadow: 0 0 0 3px rgba(230,57,70,0.18); animation: pulse 2.4s ease-in-out infinite; }
.env-brand { font-family: var(--font-mono); font-weight: 600; letter-spacing: 0.1em; color: var(--text); }
.env-brand .sep { color: var(--fainter); padding: 0 4px; }
.env-brand .sub { color: var(--steel); }
.env-badge { border: 1px solid var(--border-strong); color: var(--muted); padding: 2px 7px; font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; white-space: nowrap; }
.env-label { color: var(--faint); text-transform: uppercase; font-weight: 600; font-size: 10px; letter-spacing: 0.14em; }
.env-value { color: var(--muted); font-weight: 500; }
.env-value.mono { color: var(--text); }
.env-sep { color: var(--fainter); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ============================== HERO / INTRO =========================== */
.hero { padding: 64px 0 40px; }
.hero h1 { margin: 18px 0 0; font-size: clamp(34px, 6.2vw, 66px); }
.hero .lede { margin: 22px 0 0; max-width: 620px; font-size: clamp(16px, 2.2vw, 19px); color: var(--muted); line-height: 1.6; }
.privacy {
  display: inline-flex; align-items: center; gap: 9px;
  margin-top: 26px; padding: 8px 14px;
  border: 1px solid var(--border-strong); border-radius: 6px;
  background: var(--surface); font-size: 12.5px; color: var(--muted);
}
.privacy .lock { color: var(--steel); flex: none; }
.privacy b { color: var(--text); font-weight: 600; }

/* ============================== SECTIONS =============================== */
.section { padding: 30px 0; }
.section-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.section-num { font-family: var(--font-mono); color: var(--accent); font-size: 13px; font-weight: 500; }
.section-title { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; }
.section-desc { color: var(--muted); font-size: 14px; max-width: 560px; }
hr.rule { border: 0; height: 1px; background: var(--border); margin: 8px 0; }

/* =============================== INPUTS ================================ */
.examples-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.examples-row .lab { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); margin-right: 4px; }
.chip-btn {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text); padding: 7px 13px; border-radius: 6px; cursor: pointer;
  transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);
}
.chip-btn:hover { border-color: var(--steel); background: var(--surface-2); }
.chip-btn .who { color: var(--muted); font-size: 11px; }
.chip-btn.ghost { border-style: dashed; color: var(--muted); }
.chip-btn.ghost:hover { color: var(--text); }

.sources-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sources-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

.source-card { border: 1px solid var(--border); background: var(--surface); border-radius: 8px; display: flex; flex-direction: column; overflow: hidden; }
.source-card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 13px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.source-tag { display: flex; align-items: center; gap: 9px; }
.source-letter { font-family: var(--font-mono); font-weight: 700; font-size: 13px; color: var(--bg-deep); background: var(--steel); width: 22px; height: 22px; display: grid; place-items: center; border-radius: 4px; }
.source-name { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.fmt-badge { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em; padding: 3px 8px; border-radius: 4px; border: 1px solid var(--border-strong); color: var(--muted); white-space: nowrap; }
.fmt-badge.ok { color: var(--steel); border-color: color-mix(in srgb, var(--steel) 45%, transparent); }
.fmt-badge.unknown { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.source-card textarea {
  width: 100%; min-height: 168px; resize: vertical; border: 0; outline: none;
  background: transparent; color: var(--text); font-family: var(--font-mono);
  font-size: 12px; line-height: 1.5; padding: 13px; tab-size: 2;
}
.source-card textarea::placeholder { color: var(--fainter); }
.source-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 12px; border-top: 1px solid var(--border); }
.mini-select { font-family: var(--font-mono); font-size: 11px; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border-strong); border-radius: 5px; padding: 4px 7px; }
.remove-src { font-family: var(--font-mono); font-size: 11px; color: var(--faint); background: none; border: 0; cursor: pointer; }
.remove-src:hover { color: var(--accent); }

.run-row { display: flex; align-items: center; gap: 14px; margin-top: 20px; flex-wrap: wrap; }
.btn-run {
  font-family: var(--font-display); font-weight: 600; font-size: 15px; letter-spacing: 0.01em;
  background: var(--accent); color: #fff; border: 0; border-radius: 7px; padding: 13px 26px; cursor: pointer;
  box-shadow: 0 0 30px rgba(230,57,70,0.28); transition: background .15s var(--ease), transform .1s var(--ease);
}
.btn-run:hover { background: var(--accent-dim); }
.btn-run:active { transform: translateY(1px); }
.btn-run:disabled { opacity: .5; cursor: default; box-shadow: none; }
.btn-secondary { font-family: var(--font-sans); font-size: 14px; color: var(--muted); background: none; border: 1px solid var(--border-strong); border-radius: 7px; padding: 12px 18px; cursor: pointer; }
.btn-secondary:hover { color: var(--text); border-color: var(--steel); }
.run-note { font-size: 12.5px; color: var(--faint); }
.run-note.err { color: var(--accent); }

/* ============================== PIPELINE =============================== */
.pipeline { display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr; align-items: stretch; margin: 8px 0 4px; }
.pstage { position: relative; border: 1px solid var(--border); background: var(--surface); border-radius: 8px; padding: 16px; min-height: 96px; opacity: .5; transition: opacity .35s var(--ease), border-color .35s var(--ease), background .35s var(--ease); overflow: hidden; }
.pstage .pstage-glow { position: absolute; inset: 0; background: radial-gradient(circle at 50% 0%, rgba(230,57,70,0.12), transparent 70%); opacity: 0; transition: opacity .4s var(--ease); }
.pstage.active { opacity: 1; border-color: var(--border-strong); }
.pstage.running { border-color: var(--accent); }
.pstage.running .pstage-glow { opacity: 1; }
.pstage.done { opacity: 1; }
.pstage-num { font-family: var(--font-mono); font-size: 11px; color: var(--faint); }
.pstage-name { font-family: var(--font-display); font-weight: 600; font-size: 17px; letter-spacing: 0.02em; margin-top: 2px; }
.pstage-sub { font-size: 11.5px; color: var(--muted); margin-top: 6px; min-height: 16px; }
.pstage-state { position: absolute; top: 14px; right: 14px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); }
.pstage.running .pstage-state { color: var(--accent); }
.pstage.done .pstage-state { color: var(--steel); }
.parrow { display: grid; place-items: center; color: var(--fainter); font-size: 16px; }
.parrow.lit { color: var(--accent); }

/* ============================== RESULTS ================================ */
.results { margin-top: 8px; }
.result-block { margin-top: 26px; opacity: 0; transform: translateY(14px); }
.result-block.show { opacity: 1; transform: none; transition: opacity .45s var(--ease), transform .45s var(--ease); }
/* Merge result reads as a focused ledger: cap its width so the lineage table's
   left labels and right status badges stay easy to track on wide screens, and
   center it under the full-width gallery for a "broad intake -> resolved record"
   funnel rather than a left-aligned step-in. */
#block-merge { max-width: 1180px; margin-left: auto; margin-right: auto; }
.block-label { display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.block-label .k { font-family: var(--font-mono); color: var(--accent); font-size: 12px; }
.block-label .t { font-family: var(--font-display); font-weight: 600; font-size: 18px; }
.block-label .meta { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--faint); }

/* intake cards */
.intake-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.intake-card { border: 1px solid var(--border); border-radius: 8px; background: var(--surface); padding: 14px; }
.intake-card .ic-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.intake-card .recog { display: flex; flex-wrap: wrap; gap: 6px; }
.tok { font-family: var(--font-mono); font-size: 11px; padding: 3px 8px; border-radius: 4px; background: var(--surface-3); border: 1px solid var(--border-strong); color: var(--text); }
.tok .ct { color: var(--steel); }
.tok .lb { color: var(--faint); margin-left: 5px; }
.warn-line { margin-top: 10px; font-size: 11.5px; color: var(--accent); font-family: var(--font-mono); }

/* NORMALIZE crosswalk - the centerpiece */
.crosswalk { display: grid; grid-template-columns: repeat(auto-fit, minmax(440px, 1fr)); gap: 14px; align-items: stretch; }
.xw-card { display: flex; flex-direction: column; border: 1px solid var(--border-strong); border-radius: 9px; background: linear-gradient(180deg, var(--surface-2), var(--surface)); padding: 15px 16px; }
.xw-kind { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel); margin-bottom: 13px; }
.xw-conv { flex: 1; display: grid; grid-template-columns: 1fr auto 1.05fr; align-items: center; gap: 12px; }
.xw-codes { display: flex; flex-direction: column; gap: 8px; }
.code-chip { display: flex; align-items: center; gap: 9px; padding: 8px 10px; border: 1px solid var(--border-strong); border-radius: 6px; background: var(--bg-deep); }
.code-chip .src { font-family: var(--font-mono); font-weight: 700; font-size: 11.5px; color: var(--bg-deep); background: var(--steel); width: 20px; height: 20px; display: grid; place-items: center; border-radius: 4px; flex: none; }
.code-chip .sys { font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; color: var(--steel); letter-spacing: 0.04em; }
.code-chip .cd { font-family: var(--font-mono); font-size: 12.5px; color: #fff; }
.code-chip .b4 { color: var(--muted); }
.code-chip .arr2 { color: var(--accent); font-weight: 700; }
.xw-merge-glyph { display: grid; place-items: center; color: var(--accent); }
.xw-merge-glyph svg { width: 54px; height: 58px; filter: drop-shadow(0 0 6px rgba(230,57,70,0.35)); }
.xw-concept { border: 1px solid color-mix(in srgb, var(--steel) 55%, transparent); border-left: 3px solid var(--steel); border-radius: 7px; background: color-mix(in srgb, var(--steel) 12%, var(--surface)); padding: 12px 13px; }
.xw-concept .lab { font-family: var(--font-mono); font-size: 10px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--steel); display: flex; align-items: center; }
.xw-concept .disp { font-family: var(--font-display); font-weight: 600; font-size: 17px; line-height: 1.2; margin-top: 5px; color: #fff; }
.xw-concept .cid { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); margin-top: 5px; }
.xw-concept.unmapped { border-color: color-mix(in srgb, var(--accent) 55%, transparent); border-left-color: var(--accent); background: color-mix(in srgb, var(--accent) 11%, var(--surface)); }
.xw-concept.unmapped .lab { color: var(--accent); }
.xw-concept.unmapped .disp { color: var(--text); }
.xw-value { font-family: var(--font-mono); font-size: 12.5px; color: var(--text); margin-top: 7px; }

/* identity-field normalizations */
.idnorm-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; margin-top: 16px; }
.idnorm-card { border: 1px solid var(--border); border-radius: 8px; background: var(--surface); padding: 13px; }
.idnorm-row { display: grid; grid-template-columns: 1fr; gap: 4px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.idnorm-row:last-child { border-bottom: 0; }
.idnorm-row .k { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }
.idnorm-conv { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.idnorm-conv .before { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
.idnorm-conv .arr { color: var(--accent); }
.idnorm-conv .after { font-family: var(--font-mono); font-size: 12px; color: var(--text); font-weight: 500; }
.idnorm-conv .note { font-size: 10.5px; color: var(--faint); }

/* MERGE: identity panel */
.identity-panel { border: 1px solid var(--border); border-radius: 9px; background: var(--surface); padding: 16px 18px; }
.identity-verdict { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; flex-wrap: wrap; }
.verdict-badge { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; padding: 5px 11px; border-radius: 5px; font-weight: 600; }
.verdict-badge.match { color: var(--bg); background: var(--steel); }
.verdict-badge.nomatch { color: #fff; background: var(--accent); }
.identity-score { font-family: var(--font-mono); font-size: 13px; color: var(--text); }
.identity-score .bar { display: inline-block; width: 120px; height: 6px; border-radius: 3px; background: var(--surface-3); margin-left: 8px; vertical-align: middle; overflow: hidden; }
.identity-score .bar i { display: block; height: 100%; background: var(--steel); }
.identity-reasons { margin-top: 12px; display: grid; gap: 7px; }
.reason { display: grid; grid-template-columns: 130px 1fr auto; gap: 12px; align-items: baseline; font-size: 12.5px; padding: 6px 0; border-top: 1px solid var(--border); }
.reason .f { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--steel); }
.reason .d { color: var(--muted); }
.reason .c { font-family: var(--font-mono); font-size: 11px; color: var(--text); }

/* MERGE: lineage graph (fragments -> one) */
.merge-graph { margin-top: 16px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg-deep); padding: 6px; }
.merge-graph svg { width: 100%; height: auto; display: block; }

/* MERGE: unified record */
.lineage-legend { display: flex; flex-wrap: wrap; gap: 14px; margin: 18px 0 12px; }
.leg { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--muted); }
.leg .sw { width: 11px; height: 11px; border-radius: 3px; flex: none; }
.sw.agreed { background: var(--lin-agreed); }
.sw.reconciled { background: var(--lin-reconciled); }
.sw.union { background: var(--lin-union); }
.sw.source { background: var(--lin-source); }

.record { border: 1px solid var(--border); border-radius: 9px; overflow: hidden; }
.rec-section-head { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); padding: 11px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border); border-top: 1px solid var(--border); }
.rec-section-head:first-child { border-top: 0; }
.rec-row { display: grid; grid-template-columns: 150px 1fr 150px; gap: 14px; align-items: start; padding: 11px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
.rec-row:last-child { border-bottom: 0; }
.rec-row .rk { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); padding-top: 2px; }
.rec-row .rv { font-size: 14px; color: var(--text); }
.rec-row .rv .sub { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--faint); margin-top: 3px; }
.rec-row .rv .alts { display: block; font-size: 11.5px; color: var(--muted); margin-top: 4px; }
.rec-row .rv .alts s { color: var(--faint); }
.rec-row .rv .rule { display: block; font-size: 11.5px; color: var(--accent); margin-top: 5px; font-style: italic; }
.code-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 6px; }
.code-tag { font-family: var(--font-mono); font-size: 10.5px; padding: 2px 7px; border-radius: 4px; border: 1px solid var(--border-strong); color: var(--muted); }
.code-tag .s { color: var(--steel); }
.lineage-cell { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; padding-top: 1px; }
.lin-badge { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 9px; border-radius: 4px; font-weight: 700; border: 1px solid transparent; }
.lin-badge.agreed { color: #07121a; background: var(--lin-agreed); }
.lin-badge.reconciled { color: #fff; background: var(--lin-reconciled); }
.lin-badge.union { color: #06140e; background: var(--lin-union); }
.lin-badge.source { color: var(--text); background: color-mix(in srgb, var(--lin-source) 26%, transparent); border-color: color-mix(in srgb, var(--lin-source) 50%, transparent); }
.src-dots { display: flex; gap: 5px; }
.src-dot { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; color: var(--bg-deep); background: var(--steel); width: 18px; height: 18px; display: grid; place-items: center; border-radius: 4px; }

/* merge halted (identity not confirmed) */
.rec-section-head.warn { color: var(--accent); }
.merge-halted { padding: 14px 16px; background: color-mix(in srgb, var(--accent) 8%, var(--surface)); color: var(--text); font-size: 13.5px; line-height: 1.5; border-bottom: 1px solid var(--border); }
.halt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; padding: 14px 16px; background: var(--surface); }
.halt-grid .idnorm-row { grid-template-columns: 100px 1fr; display: grid; align-items: baseline; gap: 10px; }
.halt-grid .idnorm-row .rv { font-size: 13px; }

/* scope note */
.scope { margin-top: 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); padding: 18px 20px; }
.scope h4 { margin: 0 0 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); font-weight: 600; }
.scope-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.scope-cols ul { margin: 6px 0 0; padding-left: 18px; }
.scope-cols li { font-size: 12.5px; color: var(--muted); margin-bottom: 5px; line-height: 1.45; }
.scope-cols .does b, .scope-cols .doesnt b { color: var(--text); font-weight: 600; }
.scope-cols .does .h { color: var(--steel); }
.scope-cols .doesnt .h { color: var(--accent); }
.scope-cols .h { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; margin-bottom: 2px; display: block; }

/* footer */
.foot { border-top: 1px solid var(--border); margin-top: 50px; padding: 28px 0 50px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot .b { font-family: var(--font-display); font-weight: 600; letter-spacing: 0.04em; }
.foot a.link { color: var(--steel); font-size: 14px; }
.foot a.link:hover { color: var(--text); }
.foot .fine { font-size: 12px; color: var(--faint); }

.hidden { display: none !important; }

/* ============================== RESPONSIVE ============================= */
@media (max-width: 860px) {
  .sources-grid, .sources-grid.cols-3 { grid-template-columns: 1fr; }
  .crosswalk { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr; gap: 10px; }
  .parrow { transform: rotate(90deg); height: 18px; }
  .scope-cols { grid-template-columns: 1fr; gap: 16px; }
  .rec-row { grid-template-columns: 1fr; gap: 7px; }
  .rec-row .lineage-cell { align-items: flex-start; flex-direction: row; }
  .reason { grid-template-columns: 1fr; gap: 2px; }
  .reason .c { grid-row: 1; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 40px 0 28px; }
  .xw-conv { grid-template-columns: 1fr; }
  .xw-merge-glyph { transform: rotate(90deg); }
}

/* reduced motion: results appear instantly, no glows/pulses */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .result-block { opacity: 1; transform: none; }
}