/* ═══════════════════════════════════════════════════════════════
   FUNNEL-SIM LAB — page-specific styles
   Inherits typography + color tokens from main.css.
   Canvas is the hero; everything else is thin rules and small-caps.
   ═══════════════════════════════════════════════════════════════ */

.fs-main { position: relative; z-index: 1; }
.masthead-nav a.active {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

/* Segment palette — muted, FT-infographic flavour. Exported so JS can
   read them via getComputedStyle() for canvas drawing. */
.fs-main {
  --seg-bargain:  #b24a3b;  /* muted red-orange */
  --seg-loyalist: #2f6e74;  /* deep teal */
  --seg-skeptic:  #8c8273;  /* warm grey */
  --seg-impulse:  #c5933b;  /* ochre */
  --fs-grid: color-mix(in oklab, var(--ink) 8%, transparent);
}

/* ── Hero ─────────────────────────────────────────────────────── */
.fs-hero { padding: 140px 48px 64px; max-width: 1080px; }
.fs-title { margin-top: 18px; }
.fs-kicker {
  margin-top: 32px; max-width: 680px;
  font-size: 18px; line-height: 1.55; color: var(--ink-soft);
}
.fs-dateline {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
  max-width: 900px;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-dim);
}
.fs-dateline .label { color: var(--ink-dim); margin-bottom: 4px; }
.fs-dateline .value {
  color: var(--ink); text-transform: none;
  letter-spacing: 0.02em; font-size: 13px;
}

/* Generic section */
.fs-section { padding: 64px 48px; max-width: 1200px; }
.fs-section .section-label { margin-bottom: 24px; }
.fs-prose { max-width: 680px; font-size: 17px; line-height: 1.55; }
.fs-prose p + p { margin-top: 20px; }
.fs-lede { font-size: 20px; line-height: 1.5; }
.fs-footnote {
  margin-top: 28px; padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size: 14px; color: var(--ink-soft); font-style: italic;
}
.fs-note { max-width: 720px; font-size: 15px; color: var(--ink-soft); margin-bottom: 16px; }

/* ═══════════════════════════════════════════════════════════
   SIMULATOR LAYOUT
   ═══════════════════════════════════════════════════════════ */
.sim-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: start;
  margin-top: 12px;
}

.sim-canvas-wrap {
  position: relative;
  border: 1px solid var(--ink);
  background:
    linear-gradient(to right, var(--fs-grid) 1px, transparent 1px) 0 0 / 45px 100%,
    var(--paper);
  padding: 0;
  overflow: hidden;
}
#fs-canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  image-rendering: -webkit-optimize-contrast;
}

/* Stage labels overlay — absolute-positioned along left edge of canvas */
.stage-labels {
  position: absolute;
  left: 0; top: 0; bottom: 0; width: 100%;
  pointer-events: none;
  display: flex; flex-direction: column;
  padding: 0;
}
.stage-lbl {
  flex: 1;
  border-top: 1px dashed var(--fs-grid);
  display: grid;
  grid-template-columns: 24px 1fr auto;
  align-items: start;
  padding: 8px 14px 0;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.stage-lbl:first-child { border-top: none; }
.stage-idx {
  font-family: "DM Mono", monospace;
  color: var(--ink-soft);
}
.stage-name {
  font-family: "Newsreader", serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink);
}
.stage-drop {
  font-family: "DM Mono", monospace;
  font-size: 10px;
  color: var(--ink-soft);
}
.stage-drop::before { content: "→ "; color: var(--ink-dim); }

/* Segment legend */
.segment-legend {
  position: absolute;
  right: 14px; top: 12px;
  display: flex; flex-direction: column; gap: 4px;
  padding: 8px 10px;
  background: color-mix(in oklab, var(--paper) 92%, transparent);
  border: 1px solid var(--rule);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  pointer-events: none;
}
.seg-dot { display: flex; align-items: center; gap: 8px; }
.seg-dot .dot {
  width: 9px; height: 9px; border-radius: 50%; display: inline-block;
}
.seg-dot[data-seg="bargain"]  .dot { background: var(--seg-bargain); }
.seg-dot[data-seg="loyalist"] .dot { background: var(--seg-loyalist); }
.seg-dot[data-seg="skeptic"]  .dot { background: var(--seg-skeptic); }
.seg-dot[data-seg="impulse"]  .dot { background: var(--seg-impulse); }

/* Controls column */
.sim-controls {
  padding: 20px 22px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 14px;
}
.control-head {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--rule);
}
.ctl-field { display: flex; flex-direction: column; gap: 6px; }
.ctl-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
}
.ctl-label span { color: var(--ink); font-weight: 500; }
.ctl-field input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 2px;
  background: var(--ink-dim);
  outline: none;
  cursor: pointer;
}
.ctl-field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 0;
  cursor: pointer;
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--accent);
}
.ctl-field input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px;
  background: var(--accent);
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--accent);
  border-radius: 0;
  cursor: pointer;
}

.run-buttons { display: flex; align-items: center; gap: 8px; }
.ctl-btn {
  background: transparent;
  border: 1px solid var(--ink);
  color: var(--ink);
  padding: 6px 12px;
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s ease;
}
.ctl-btn:hover { background: var(--ink); color: var(--paper); }
.ctl-btn.primary { background: var(--ink); color: var(--paper); }
.ctl-btn.primary:hover { background: var(--accent); border-color: var(--accent); }

.speed-dial {
  display: inline-flex;
  border: 1px solid var(--rule);
  padding: 2px;
}
.speed-dial button {
  background: transparent;
  border: none;
  color: var(--ink-soft);
  padding: 4px 8px;
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
}
.speed-dial button[aria-selected="true"] {
  background: var(--ink); color: var(--paper);
}

.preset-select {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 6px 10px;
  font-family: "DM Mono", monospace;
  font-size: 11px;
  color: var(--ink);
  letter-spacing: 0.04em;
  cursor: pointer;
  width: 100%;
}

/* ═══════════════════════════════════════════════════════════
   LIVE METRICS ROW
   ═══════════════════════════════════════════════════════════ */
.metrics-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}
.metric-card {
  padding: 22px 24px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 14px;
}
.mc-head {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.mc-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px 20px;
}
.mc-grid > div {
  display: flex; flex-direction: column; gap: 3px;
}
.mc-val {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.mc-lbl {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.segbreak-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
.segrow {
  display: grid;
  grid-template-columns: 90px 1fr 70px;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}
.segrow-name {
  font-family: "DM Mono", monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.segrow-bar {
  position: relative;
  height: 10px;
  background: var(--rule);
}
.segrow-fill { position: absolute; left: 0; top: 0; bottom: 0; }
.segrow-val {
  font-family: "Newsreader", serif;
  font-size: 16px;
  font-weight: 300;
  text-align: right;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.segbreak-note {
  padding-top: 6px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-style: normal;
}

/* ═══════════════════════════════════════════════════════════
   HOW IT WORKS CARDS
   ═══════════════════════════════════════════════════════════ */
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.how-card {
  padding: 28px 24px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
}
.how-fig {
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-dim);
}
.how-title {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 8px 0 12px;
  font-weight: 300;
}
.how-card p { font-size: 14px; line-height: 1.55; color: var(--ink-soft); }

/* ═══════════════════════════════════════════════════════════
   SCENARIO FINGERPRINTS
   ═══════════════════════════════════════════════════════════ */
.fingerprint-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 24px;
}
.fingerprint-card {
  padding: 20px 22px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 10px;
}
.fp-name {
  font-family: "Newsreader", serif;
  font-size: 22px;
  font-style: italic;
  font-weight: 300;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.fp-tag {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.fp-bars {
  display: flex; flex-direction: column; gap: 5px;
  margin-top: 6px;
}
.fp-bar-row {
  display: grid;
  grid-template-columns: 54px 1fr 50px;
  align-items: center; gap: 8px;
  font-size: 11px;
}
.fp-bar-lbl {
  font-family: "DM Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-size: 9px;
}
.fp-bar { position: relative; height: 8px; background: var(--rule); }
.fp-bar-fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--accent); }
.fp-bar-val {
  font-family: "Newsreader", serif;
  font-size: 15px;
  text-align: right;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.fp-summary {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--rule);
  font-size: 12px; line-height: 1.45;
  color: var(--ink-soft);
}

/* ═══════════════════════════════════════════════════════════
   RECEIPTS, METHODOLOGY (shared)
   ═══════════════════════════════════════════════════════════ */
.fs-section .metrics-grid {
  display: grid;
  /* 3 × 2 for the six receipt cards; no 5 + 1 orphan. */
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}
@media (max-width: 720px) {
  .fs-section .metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 440px) {
  .fs-section .metrics-grid { grid-template-columns: 1fr; }
}
.fs-section .metric {
  padding: 20px 22px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
}
.fs-section .metric-value {
  font-size: 32px; font-weight: 300; letter-spacing: -0.01em;
  line-height: 1.1; color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.fs-section .metric-label {
  margin-top: 4px; font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-dim);
}

.fs-colophon-section { max-width: 1200px; }
.method-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 32px 48px; margin-top: 24px;
}
.method-head {
  font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-dim); margin-bottom: 8px;
}
.method-grid p { font-size: 14px; line-height: 1.55; color: var(--ink-soft); }
.method-ctas { margin-top: 48px; display: flex; gap: 16px; flex-wrap: wrap; }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 960px) {
  .fs-hero { padding: 120px 24px 48px; }
  .fs-section { padding: 48px 24px; }
  .fs-dateline { grid-template-columns: 1fr; gap: 16px; }

  .sim-layout { grid-template-columns: 1fr; }
  .sim-controls { flex-direction: column; }

  .metrics-row { grid-template-columns: 1fr; }
  .mc-grid { grid-template-columns: repeat(2, 1fr); }

  .how-grid,
  .fingerprint-grid,
  .method-grid { grid-template-columns: 1fr; }
  .fingerprint-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .fs-section { padding: 40px 16px; }
  .fingerprint-grid { grid-template-columns: 1fr; }
  .stage-labels { font-size: 9px; }
  .stage-name { font-size: 12px; }
  .segment-legend { font-size: 9px; right: 8px; top: 8px; }
}