/* ── CALCULATOR CUSTOM PROPERTIES (scoped — never bleeds into site) ── */
.calc-root {
  --cc: #F4EDDD;
  --cf: #2D5A3F;
  --cb: #A0432A;
  --ci: #2A2A2A;
  /* Muted text bumped from 0.55 → 0.72 alpha so labels/hints clear WCAG AA
     (4.5:1) against the cream background. The previous 3.1:1 read as "washed". */
  --cm: rgba(42,42,42,0.72);
  --cr: rgba(42,42,42,0.22);
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Cormorant Garamond', Georgia, serif;
  --font-mono:    'DM Mono', ui-monospace, Menlo, monospace;
  min-height: 100vh;
  background: var(--cc);
  color: var(--ci);
  font-family: var(--font-body);
  /* Cormorant Garamond at 400 reads thin on cream; 500 retains the editorial
     mood but resolves the "washed font" complaint. Body bumped 16 → 17. */
  font-size: 17px;
  font-weight: 500;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.calc-inner { max-width: 680px; margin: 0 auto; padding: 40px 20px 80px; }

/* Header */
.calc-header { border-bottom: 2px solid var(--cf); padding-bottom: 24px; margin-bottom: 32px; }
.calc-header-meta { display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.calc-eyebrow { font-family:var(--font-mono); font-size:11px; font-weight:600; letter-spacing:.20em; text-transform:uppercase; color:var(--cb); }
.calc-currency-tag { font-family:var(--font-mono); font-size:11px; font-weight:500; letter-spacing:.14em; color:var(--cm); }
.calc-title { font-family:var(--font-display); font-size:clamp(32px,5.5vw,44px); font-weight:700; line-height:1.05; letter-spacing:-.015em; color:var(--ci); margin-bottom:14px; }
.calc-title em { font-style:italic; font-weight:600; }
.calc-intro { font-family:var(--font-body); font-size:15px; line-height:1.6; color:var(--ci); margin:0 0 10px; font-weight:500; }
.calc-intro strong { font-weight:600; }
.calc-subtitle { font-style:italic; color:var(--cm); font-size:15px; line-height:1.5; font-weight:500; }

/* EV label row */
.ev-label-row { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:14px; }
.ev-label, .ev-delta-label { font-family:var(--font-mono); font-size:10px; font-weight:500; letter-spacing:.16em; text-transform:uppercase; color:var(--ci); opacity:.78; }

/* Strategy cards */
.strategy-cards { display:flex; flex-direction:column; gap:8px; }
.strategy-card { padding:18px 20px; position:relative; border:1.5px solid var(--cr); background:transparent; transition:border-color .2s, box-shadow .2s; }
.strategy-card[data-winner="true"] { background:var(--cf); border:2px solid var(--cf); color:var(--cc); box-shadow:0 4px 12px rgba(45,90,63,.18); padding:17px 19px; }
.best-ev-badge { display:none; position:absolute; top:-11px; left:14px; background:var(--cb); color:var(--cc); font-family:var(--font-mono); font-size:10px; font-weight:600; letter-spacing:.18em; padding:4px 10px; text-transform:uppercase; }
.strategy-card[data-winner="true"] .best-ev-badge { display:block; }
.strategy-card-body { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
.strategy-name { font-family:var(--font-display); font-size:22px; font-weight:700; line-height:1.1; }
.strategy-sub { font-style:italic; font-size:13px; font-weight:500; opacity:.92; line-height:1.45; margin-top:5px; }
.strategy-ev-col { text-align:right; flex-shrink:0; }
.strategy-ev-value { font-family:var(--font-mono); font-size:22px; font-weight:700; display:block; font-variant-numeric:tabular-nums; }
.strategy-ev-delta { font-family:var(--font-mono); font-size:11px; opacity:.85; display:block; font-variant-numeric:tabular-nums; }

/* Verdict */
.verdict-box { margin-top:24px; padding:18px 20px; background:rgba(160,67,42,.09); border-left:4px solid var(--cb); }
.verdict-text { font-family:var(--font-display); font-size:17px; font-style:italic; font-weight:500; line-height:1.5; }
.verdict-text strong { font-style:normal; font-weight:700; color:var(--cb); margin-right:4px; }

/* Show/hide math */
.show-math-btn { background:none; border:none; cursor:pointer; font-family:var(--font-mono); font-size:11px; font-weight:600; letter-spacing:.16em; color:var(--cf); margin-top:16px; text-decoration:underline; text-underline-offset:3px; padding:0; }
.show-math-btn:hover { color:var(--ci); }
.show-math-btn:focus-visible { outline:2px solid var(--cf); outline-offset:3px; }
.math-panel { display:none; margin-top:14px; padding:18px 20px; background:rgba(42,42,42,.05); border-left:2px solid var(--cr); font-family:var(--font-mono); font-size:12px; font-weight:500; line-height:1.75; color:var(--ci); font-variant-numeric:tabular-nums; }
.math-panel.visible { display:block; }
.math-panel p { margin-bottom:3px; }
.math-panel strong { font-weight:700; color:var(--cf); }
.math-panel .math-block { margin-top:10px; }

/* Section headers — promoted to <h2> in V5.2 for SEO heading hierarchy.
   The .section-label rule overrides h2's default browser margins. */
h2.section-label { font-size: inherit; font-weight: inherit; }
.section-label { display:flex; align-items:baseline; gap:12px; margin-bottom:18px; margin-top:36px; border-bottom:1.5px solid var(--ci); padding-bottom:8px; }
.section-num { font-family:var(--font-mono); font-size:11px; font-weight:500; color:var(--cb); letter-spacing:.16em; }
.section-title { font-family:var(--font-display); font-size:20px; font-style:italic; font-weight:600; color:var(--ci); }

/* Input grid */
.input-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px 24px; }

/* Field */
.field { display:block; }
.field-label { font-family:var(--font-mono); font-size:11px; font-weight:500; letter-spacing:.13em; text-transform:uppercase; color:var(--ci); opacity:.78; display:block; margin-bottom:6px; }
.field-input-row { display:flex; align-items:baseline; padding-bottom:5px; border-bottom:1.5px solid var(--cr); transition:border-bottom-color .15s ease; }
.field-input-row:focus-within { border-bottom-color:var(--cf); border-bottom-width:2px; padding-bottom:4px; }
.field-prefix, .field-suffix { font-family:var(--font-mono); font-size:13px; font-weight:500; color:var(--cm); flex-shrink:0; }
.field-prefix { margin-right:4px; }
.field-suffix { margin-left:4px; }
.field-input { flex:1; min-width:0; background:transparent; border:none; outline:none; font-family:var(--font-mono); font-size:18px; font-weight:600; color:var(--ci); width:100%; -moz-appearance:textfield; font-variant-numeric:tabular-nums; }
.field-input::-webkit-inner-spin-button, .field-input::-webkit-outer-spin-button { -webkit-appearance:none; margin:0; }

/* Pop low auto */
.pop-low-value { font-family:var(--font-mono); font-size:18px; font-weight:600; color:var(--ci); padding-bottom:5px; border-bottom:1.5px solid var(--cr); display:block; font-variant-numeric:tabular-nums; }
.pop-low-value[data-over="true"] { color:var(--cb); }
.pop-over-warning { display:none; font-family:var(--font-mono); font-size:11px; font-weight:500; color:var(--cb); margin-left:8px; letter-spacing:.1em; }

/* PSA lookup widget */
.psa-lookup { margin-top:24px; padding:18px; background:rgba(45,90,63,.06); border:1.5px dashed var(--cf); }
.psa-lookup-label { display:block; font-family:var(--font-mono); font-size:11px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--cf); margin-bottom:12px; }
.psa-lookup-row { display:flex; gap:8px; align-items:stretch; }
.psa-lookup-input { flex:1; min-width:0; background:var(--cc); border:1.5px solid var(--cr); outline:none; font-family:var(--font-mono); font-size:14px; font-weight:500; color:var(--ci); padding:9px 10px; }
.psa-lookup-input:focus-visible { border-color:var(--cf); border-width:2px; padding:8px 9px; }
.psa-lookup-btn { font-family:var(--font-mono); font-size:12px; font-weight:600; letter-spacing:.12em; padding:9px 16px; background:var(--cf); color:var(--cc); border:none; cursor:pointer; text-transform:uppercase; white-space:nowrap; transition:background .15s ease; }
.psa-lookup-btn:hover { background:var(--ci); }
.psa-lookup-btn:disabled { opacity:.5; cursor:wait; }
.psa-lookup-btn:focus-visible { outline:2px solid var(--cb); outline-offset:2px; }
.psa-lookup-status { margin-top:10px; font-family:var(--font-mono); font-size:12px; font-weight:500; min-height:1.2em; }
.psa-lookup-status[data-kind="error"]   { color:var(--cb); }
.psa-lookup-status[data-kind="success"] { color:var(--cf); }
.psa-lookup-status[data-kind="loading"] { color:var(--cm); }
.psa-lookup-desc { margin-top:6px; font-size:13px; font-style:italic; font-weight:500; color:var(--cm); line-height:1.45; }

/* Slider */
.slider-row { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:10px; gap:12px; }
.slider-label-text { font-family:var(--font-mono); font-size:11px; font-weight:500; letter-spacing:.13em; text-transform:uppercase; color:var(--ci); opacity:.78; }
.slider-value-display { font-family:var(--font-mono); font-size:17px; font-weight:700; color:var(--cf); font-variant-numeric:tabular-nums; }
.slider-input { width:100%; accent-color:var(--cf); cursor:pointer; height:6px; }
.slider-hint { margin-top:10px; font-size:13px; font-style:italic; font-weight:500; color:var(--cm); line-height:1.5; }

/* Actions */
.calc-actions { margin-top:40px; padding-top:16px; border-top:1.5px solid var(--cr); display:flex; align-items:center; justify-content:space-between; }
.reset-btn { font-family:var(--font-mono); font-size:11px; letter-spacing:.12em; padding:8px 14px; border:1.5px solid var(--ci); background:transparent; color:var(--ci); text-transform:uppercase; cursor:pointer; transition:background .2s, color .2s; }
.reset-btn:hover { background:var(--ci); color:var(--cc); }
.reset-btn:focus-visible { outline:2px solid var(--cf); outline-offset:3px; }
.calc-version-tag { font-family:var(--font-mono); font-size:9px; color:var(--cm); letter-spacing:.1em; }

/* V5.2 byline (E-E-A-T signal). Sits just above the assumptions footnote. */
.calc-byline {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px dashed var(--cr);
  font-family: var(--font-body);
  font-style: italic;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--cm);
}
.calc-byline a {
  color: var(--cf);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-style: normal;
}
.calc-byline a:hover { color: var(--cb); }

/* Footnote */
.calc-footer-note { margin-top:32px; padding-top:22px; border-top:1.5px solid var(--cr); color:var(--cm); line-height:1.65; }
.calc-footer-note-title { font-family:var(--font-display); font-style:italic; font-weight:600; font-size:15px; color:var(--ci); margin-bottom:10px; display:block; }
.calc-footer-note p { font-size:13px; font-weight:500; }
.calc-footer-note em { color:var(--ci); font-style:italic; font-weight:600; }

/* Responsive */
@media (max-width:480px) {
  .calc-inner { padding:28px 16px 60px; }
  .input-grid { grid-template-columns:1fr 1fr; }
  .strategy-ev-value { font-size:18px; }
  .slider-input { height:20px; }
  .psa-lookup-row { flex-direction:column; }
}
@media (max-width:360px) {
  .input-grid { grid-template-columns:1fr; }
}
@media (prefers-reduced-motion:reduce) {
  .reset-btn, .field-input-row, .email-send-btn, .psa-lookup-btn { transition:none; }
}

/* ── V2: Card ID inputs inside PSA widget ── */
.card-id-row { display:flex; gap:10px; margin-bottom:14px; }
.card-id-row .field { flex:1; min-width:0; }
.card-id-row .field-input-row {
  background:var(--cc);
  padding:6px 10px;
  border:1.5px solid var(--cr);
  border-bottom:1.5px solid var(--cr);
  transition:border-color .15s ease;
}
.card-id-row .field-input-row:focus-within { border-color:var(--cf); border-width:2px; padding:5px 9px; }
.card-id-row .field-label { color:var(--cf); opacity:1; font-weight:600; }
.card-id-row .field-input { font-size:14px; font-weight:500; }
@media (max-width:480px) {
  .card-id-row { flex-direction:column; gap:12px; }
}

/* ── V2: PSA spec ID help text ── */
.psa-help {
  margin-top:10px;
  font-size:12px;
  font-style:italic;
  font-weight:500;
  color:var(--cm);
  line-height:1.5;
}
.psa-help code {
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  font-style:normal;
  background:rgba(42,42,42,.08);
  color:var(--ci);
  padding:1px 5px;
  border-radius:2px;
}

/* ── V2: Slider dynamic explainer ── */
.slider-explainer {
  margin-top:10px;
  font-size:12px;
  font-weight:500;
  color:var(--ci);
  font-family:var(--font-mono);
  line-height:1.55;
  letter-spacing:.01em;
}

/* ── V2: Email capture widget (replaces reset button area) ── */
.email-capture {
  margin-top:44px;
  padding:24px;
  background:rgba(45,90,63,.08);
  border:2px solid var(--cf);
}
.email-capture-label {
  display:block;
  font-family:var(--font-display);
  font-size:22px;
  font-style:italic;
  font-weight:600;
  color:var(--cf);
  margin-bottom:6px;
  line-height:1.15;
}
.email-capture-hint {
  font-size:14px;
  color:var(--ci);
  opacity:.82;
  font-style:italic;
  font-weight:500;
  margin-bottom:14px;
  line-height:1.45;
}
.email-capture-row { display:flex; gap:10px; align-items:stretch; }
.email-input {
  flex:1; min-width:0;
  background:var(--cc);
  border:1.5px solid var(--cr);
  outline:none;
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:500;
  color:var(--ci);
  padding:11px 12px;
}
.email-input:focus-visible { border-color:var(--cf); border-width:2px; padding:10px 11px; }
.email-send-btn {
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  padding:11px 22px;
  background:var(--cf);
  color:var(--cc);
  border:none;
  cursor:pointer;
  text-transform:uppercase;
  white-space:nowrap;
  transition:background .15s ease, transform .1s ease;
}
.email-send-btn:hover { background:var(--ci); }
.email-send-btn:active { transform:translateY(1px); }
.email-send-btn:disabled { opacity:.5; cursor:wait; transform:none; }
.email-send-btn:focus-visible { outline:2px solid var(--cb); outline-offset:2px; }
.email-status {
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  min-height:1.2em;
}
.email-status[data-kind="error"]   { color:var(--cb); }
.email-status[data-kind="success"] { color:var(--cf); }
.email-status[data-kind="loading"] { color:var(--cm); }
@media (max-width:480px) {
  .email-capture-row { flex-direction:column; }
}

/* ── V5: "How to use" guide (collapsible disclosure) ── */
.calc-guide {
  margin: 28px 0 0;
  padding: 0;
  border: 1.5px solid var(--cr);
  background: rgba(45,90,63,.04);
}
.calc-guide[open] { border-color: var(--cf); }
.calc-guide-summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  font-weight: 600;
  color: var(--cf);
  padding: 14px 18px;
  position: relative;
  user-select: none;
}
.calc-guide-summary::-webkit-details-marker { display: none; }
.calc-guide-summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 18px;
  margin-right: 8px;
  color: var(--cb);
}
.calc-guide[open] .calc-guide-summary::before { content: "−"; }
.calc-guide-summary:hover { background: rgba(45,90,63,.07); }
.calc-guide-summary:focus-visible { outline: 2px solid var(--cf); outline-offset: -2px; }

.calc-guide-body {
  padding: 0 22px 18px 22px;
  border-top: 1.5px solid var(--cr);
  padding-top: 16px;
  margin-top: -2px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ci);
}
.calc-guide-body ol { padding-left: 22px; margin: 0; }
.calc-guide-body ol > li { margin-bottom: 14px; }
.calc-guide-body ol > li:last-child { margin-bottom: 0; }
.calc-guide-body ul { padding-left: 18px; margin: 6px 0 0; }
.calc-guide-body ul li { margin-bottom: 4px; font-size: 13px; opacity: .92; }
.calc-guide-body strong { font-weight: 600; color: var(--ci); }
.calc-guide-body em { font-style: italic; font-weight: 600; color: var(--cf); }
.calc-guide-body a {
  color: var(--cf);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}
.calc-guide-body a:hover { color: var(--cb); }
.calc-guide-body code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(42,42,42,.08);
  padding: 1px 5px;
  border-radius: 2px;
}
.calc-guide-disclaimer {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--cr);
  font-size: 12px;
  font-style: italic;
  color: var(--cm);
  line-height: 1.5;
}

/* slider hint links inherit the guide-style anchor */
.slider-hint a {
  color: var(--cf);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.slider-hint a:hover { color: var(--cb); }