/* =========================================================
   Calculator framework — shared CSS for every /calculators/* page.
   Loaded via <link rel="stylesheet" href="/calculators/calc-framework.css?v=...">
   AFTER master-common.css. Per-calculator HTML files inline only the rules
   that override these (rare).

   Design grammar matches the umbrella site: Fraunces serif headlines,
   JetBrains Mono eyebrows/codes, brand-blue accents, paper-cream surfaces,
   hairline borders + dashed dividers, specimen-card vocabulary.
   ========================================================= */

:root {
  --calc-bg:        #fafaf8;
  --calc-paper:     #fcfaf6;
  --calc-warm:      #f7f3ec;
  --calc-rule:      #d4cdc0;
  --calc-rule-soft: #e7e2d9;
  --calc-ink:       #0a0a0c;
  --calc-muted:     #565658;
  --calc-quiet:     #8a857c;
  --calc-brand:     #026DBF;
  --calc-sky:       #3B9DEB;
  --calc-green:     #16a34a;
  --calc-amber:     #d97706;
  --calc-crimson:   #be123c;
}

/* ==== HERO ==== */
.calc-hero { background: var(--calc-paper); border-bottom: 1px solid var(--calc-rule); padding: 3rem 0 2.5rem; position: relative; overflow: hidden; }
.calc-hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(2,109,191,0.045) 1px, transparent 0);
  background-size: 28px 28px;
  pointer-events: none;
}
.calc-hero-inner { max-width: 980px; margin: 0 auto; padding: 0 1.5rem; position: relative; z-index: 1; }
.calc-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem; font-weight: 700;
  letter-spacing: 0.22em; color: var(--calc-brand);
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 0.55rem;
  margin-bottom: 1rem;
}
.calc-eyebrow::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--calc-green);
  box-shadow: 0 0 0 3px rgba(22,163,74,0.18);
}
.calc-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--calc-ink);
  margin-bottom: 0.7rem;
}
.calc-title em { color: var(--calc-brand); font-style: italic; font-weight: 700; }
.calc-lede { font-size: 1.04rem; color: var(--calc-muted); line-height: 1.55; max-width: 60ch; margin-bottom: 0; }

/* ==== TWO-COLUMN SHELL: inputs + result ==== */
.calc-shell { max-width: 1080px; margin: 0 auto; padding: 2.5rem 1.5rem 4rem; }
.calc-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 900px) {
  .calc-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: start; }
}

/* ==== PANELS ==== */
.calc-panel { background: #fff; border: 1px solid var(--calc-rule); border-radius: 6px; overflow: hidden; }
.calc-panel-h {
  padding: 0.95rem 1.4rem;
  background: var(--calc-paper);
  border-bottom: 1px dashed var(--calc-rule);
  display: flex; justify-content: space-between; align-items: center;
}
.calc-panel-h .ttl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--calc-ink);
  text-transform: uppercase;
}
.calc-panel-h .step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; color: var(--calc-brand);
  padding: 0.18rem 0.5rem;
  background: rgba(2,109,191,0.1);
  border-radius: 3px;
  letter-spacing: 0.08em; font-weight: 700;
}
.calc-panel-body { padding: 1.4rem 1.5rem; }

/* ==== FIELDS ==== */
.field { margin-bottom: 1.2rem; }
.field label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.14em; color: var(--calc-ink);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.field label .hint {
  color: var(--calc-quiet);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0.04em;
  margin-left: 0.5rem;
}
.field select,
.field input[type="text"],
.field input[type="email"],
.field input[type="number"],
.field input[type="tel"] {
  width: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  padding: 0.6rem 0.75rem;
  background: var(--calc-paper);
  border: 1px solid var(--calc-rule);
  border-radius: 4px;
  color: var(--calc-ink);
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.field select:focus,
.field input:focus {
  outline: 0;
  border-color: var(--calc-brand);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(2,109,191,0.12);
}
.field input[type="number"]::-webkit-inner-spin-button,
.field input[type="number"]::-webkit-outer-spin-button { opacity: 1; }

/* Range slider — used by feature-count, etc. */
.field input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  margin: 0.7rem 0 0.4rem;
}
.field input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: linear-gradient(90deg, var(--calc-brand), var(--calc-sky));
  border-radius: 2px;
}
.field input[type="range"]::-moz-range-track {
  height: 4px;
  background: linear-gradient(90deg, var(--calc-brand), var(--calc-sky));
  border-radius: 2px;
}
.field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px; height: 20px;
  background: #fff;
  border: 3px solid var(--calc-brand);
  border-radius: 50%;
  margin-top: -8px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(2,109,191,0.25);
}
.field input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px;
  background: #fff;
  border: 3px solid var(--calc-brand);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(2,109,191,0.25);
}
.range-display {
  font-family: 'Fraunces', serif;
  font-size: 1.4rem; font-weight: 700;
  color: var(--calc-brand);
  text-align: right;
  letter-spacing: -0.01em;
}

/* Toggle (Yes/No / multi-option pill row) */
.toggle-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.toggle-row label {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  background: var(--calc-paper);
  border: 1px solid var(--calc-rule);
  border-radius: 4px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--calc-muted);
  margin: 0;
  text-transform: none;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}
.toggle-row input[type="radio"],
.toggle-row input[type="checkbox"] { accent-color: var(--calc-brand); }
.toggle-row label:has(input:checked) {
  background: rgba(2,109,191,0.08);
  border-color: var(--calc-brand);
  color: var(--calc-brand);
}

/* Multi-add row — used by SaaS spend audit (per-tool entries) */
.tool-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr 30px;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  align-items: center;
}
.tool-row input { padding: 0.45rem 0.6rem; font-size: 0.85rem; }
.tool-row .remove-btn {
  background: transparent;
  border: 1px solid var(--calc-rule);
  border-radius: 4px;
  width: 28px; height: 28px;
  cursor: pointer;
  color: var(--calc-quiet);
  display: grid; place-items: center;
  font-size: 1rem;
  transition: border-color 0.12s, color 0.12s;
}
.tool-row .remove-btn:hover { border-color: var(--calc-crimson); color: var(--calc-crimson); }
.add-row-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; font-weight: 700;
  color: var(--calc-brand);
  background: transparent;
  border: 1px dashed var(--calc-brand);
  padding: 0.45rem 0.85rem;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: 0.06em;
  margin-top: 0.4rem;
}
.add-row-btn:hover { background: rgba(2,109,191,0.05); }

/* ==== RESULT PANEL ==== */
.result-panel {
  background: linear-gradient(135deg, var(--calc-paper) 0%, var(--calc-warm) 100%);
  border: 1px solid var(--calc-rule);
  border-left: 4px solid var(--calc-brand);
  border-radius: 6px;
  padding: 1.6rem 1.7rem;
  min-height: 420px;
  position: relative;
  overflow: hidden;
}
.result-panel::after {
  content: '';
  position: absolute;
  top: -20px; right: -20px;
  width: 80px; height: 80px;
  background: linear-gradient(135deg, rgba(2,109,191,0.12), rgba(59,157,235,0.04));
  border-radius: 50%;
  pointer-events: none;
}
.result-empty {
  color: var(--calc-quiet);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  padding: 4rem 0;
  text-align: center;
}
.result-empty .marker {
  display: inline-block;
  width: 10px; height: 10px;
  background: var(--calc-rule);
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.result-stamp {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--calc-brand);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  position: relative; z-index: 1;
}
.result-headline {
  font-family: 'Fraunces', serif;
  font-size: 2.5rem; font-weight: 800;
  color: var(--calc-brand);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
  position: relative; z-index: 1;
}
.result-headline .unit {
  font-size: 1rem; font-weight: 600;
  color: var(--calc-muted);
  margin-left: 0.3rem;
  letter-spacing: 0;
}
.result-tier {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.14em;
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
  text-transform: uppercase;
  position: relative; z-index: 1;
}
.result-tier.low      { background: rgba(22,163,74,0.12); color: var(--calc-green); }
.result-tier.medium   { background: rgba(217,119,6,0.12); color: var(--calc-amber); }
.result-tier.high     { background: rgba(217,119,6,0.18); color: #b45309; }
.result-tier.critical { background: rgba(190,18,60,0.12); color: var(--calc-crimson); }

.result-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 0.7rem;
  padding: 0.6rem 0;
  border-top: 1px dashed var(--calc-rule);
  font-size: 0.86rem;
  position: relative; z-index: 1;
}
.result-row:first-of-type {
  border-top: 1px solid var(--calc-rule);
  padding-top: 0.8rem;
  margin-top: 0.8rem;
}
.result-row .lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--calc-quiet);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-top: 0.2rem;
  font-weight: 700;
}
.result-row .val { color: var(--calc-ink); }
.result-row .val em { color: var(--calc-brand); font-style: italic; font-weight: 600; }
.result-row .val strong { font-family: 'Fraunces', serif; font-weight: 700; color: var(--calc-ink); }

/* Comparison table inside results (used by Build vs Buy, AI API Cost, etc.) */
.result-table { width: 100%; margin-top: 1rem; border-collapse: collapse; font-size: 0.82rem; position: relative; z-index: 1; }
.result-table th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem; font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--calc-quiet);
  text-transform: uppercase;
  text-align: left;
  padding: 0.5rem 0.4rem;
  border-bottom: 2px solid var(--calc-brand);
}
.result-table td {
  padding: 0.55rem 0.4rem;
  border-bottom: 1px dashed var(--calc-rule-soft);
  vertical-align: top;
}
.result-table tr.winner td { background: rgba(2,109,191,0.05); font-weight: 600; }
.result-table .winner-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem; font-weight: 700;
  background: var(--calc-brand);
  color: white;
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  letter-spacing: 0.1em;
  margin-left: 0.4rem;
}

.result-gaps { margin-top: 1rem; position: relative; z-index: 1; }
.result-gaps-h {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--calc-brand);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.result-gaps ol { margin: 0; padding-left: 1.2rem; }
.result-gaps li {
  margin-bottom: 0.5rem;
  font-size: 0.84rem;
  color: var(--calc-muted);
  line-height: 1.5;
}

.result-cta {
  margin-top: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px dashed var(--calc-rule);
  position: relative; z-index: 1;
}
.result-cta-text {
  font-size: 0.82rem;
  color: var(--calc-muted);
  margin-bottom: 0.85rem;
  line-height: 1.5;
}

/* ==== BUTTONS ==== */
.btn-result {
  background: linear-gradient(135deg, var(--calc-brand) 0%, var(--calc-sky) 100%);
  color: white;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.7rem 1.2rem;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 6px 18px -4px rgba(2,109,191,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}
.btn-result:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -6px rgba(2,109,191,0.5); filter: brightness(1.05); }
.btn-result:active { transform: translateY(0); }
.btn-result:disabled { opacity: 0.55; cursor: wait; transform: none; }

/* ==== EMAIL-GATE MODAL ==== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10,10,12,0.6);
  backdrop-filter: blur(4px);
  display: none;
  place-items: center;
  z-index: 100;
  padding: 1rem;
}
.modal-backdrop.open { display: grid; }
.modal {
  background: white;
  max-width: 480px;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 64px -12px rgba(0,0,0,0.4);
  animation: modal-in 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-h {
  padding: 1.2rem 1.4rem;
  border-bottom: 1px dashed var(--calc-rule);
}
.modal-h .stamp {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--calc-brand);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.modal-h .ttl {
  font-family: 'Fraunces', serif;
  font-size: 1.3rem; font-weight: 700;
  color: var(--calc-ink);
  line-height: 1.2;
}
.modal-body { padding: 1.4rem; }
.modal-foot {
  padding: 1rem 1.4rem;
  background: var(--calc-paper);
  border-top: 1px dashed var(--calc-rule);
  display: flex;
  gap: 0.6rem;
  justify-content: space-between;
  align-items: center;
}
.modal-cancel {
  background: transparent;
  border: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--calc-quiet);
  cursor: pointer;
  letter-spacing: 0.06em;
}
.modal-cancel:hover { color: var(--calc-ink); }

.consent-row {
  display: flex; gap: 0.6rem; align-items: flex-start;
  padding: 0.85rem;
  background: var(--calc-paper);
  border: 1px dashed var(--calc-rule);
  border-radius: 4px;
  margin-top: 0.7rem;
}
.consent-row input[type="checkbox"] {
  accent-color: var(--calc-brand);
  margin-top: 0.15rem;
  flex-shrink: 0;
}
.consent-row label {
  font-size: 0.74rem;
  color: var(--calc-muted);
  line-height: 1.5;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  margin: 0;
}

.cf-turnstile { margin-top: 0.6rem; }

/* ==== SUBMISSION STATUS ==== */
.submit-status {
  display: none;
  padding: 0.8rem 1rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  margin-top: 0.8rem;
  line-height: 1.5;
}
.submit-status.show { display: block; }
.submit-status.success {
  background: rgba(22,163,74,0.08);
  color: var(--calc-green);
  border: 1px solid rgba(22,163,74,0.3);
}
.submit-status.error {
  background: rgba(190,18,60,0.08);
  color: var(--calc-crimson);
  border: 1px solid rgba(190,18,60,0.3);
}
.submit-status.info {
  background: rgba(2,109,191,0.06);
  color: var(--calc-brand);
  border: 1px solid rgba(2,109,191,0.25);
}

/* ==== METHODOLOGY SECTION ==== */
.methodology {
  max-width: 880px;
  margin: 4rem auto 0;
  padding: 2.5rem 1.5rem 4rem;
  border-top: 1px solid var(--calc-rule);
}
.methodology h2 {
  font-family: 'Fraunces', serif;
  font-size: 1.7rem; font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--calc-ink);
  margin-bottom: 0.8rem;
  line-height: 1.2;
}
.methodology h2 em { color: var(--calc-brand); font-style: italic; }
.methodology h3 {
  font-family: 'Fraunces', serif;
  font-size: 1.15rem; font-weight: 700;
  color: var(--calc-ink);
  margin: 1.8rem 0 0.5rem;
}
.methodology p {
  font-size: 0.96rem;
  color: var(--calc-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.methodology p strong { color: var(--calc-ink); }
.methodology ul { margin: 0 0 1rem 1.3rem; }
.methodology ul li {
  font-size: 0.95rem;
  color: var(--calc-muted);
  line-height: 1.6;
  margin-bottom: 0.4rem;
}
.methodology a { color: var(--calc-brand); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }

/* ==== FAQ SECTION ==== */
.faq {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}
.faq h2 {
  font-family: 'Fraunces', serif;
  font-size: 1.7rem; font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 1.2rem;
}
.faq details {
  border-top: 1px dashed var(--calc-rule);
  padding: 0.85rem 0;
}
.faq details:first-of-type { border-top: 1px solid var(--calc-rule); }
.faq summary {
  cursor: pointer;
  font-family: 'Fraunces', serif;
  font-size: 1.02rem; font-weight: 600;
  color: var(--calc-ink);
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  color: var(--calc-brand);
  font-size: 1.4rem;
  line-height: 1;
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p {
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  color: var(--calc-muted);
  line-height: 1.7;
}
.faq details p a { color: var(--calc-brand); text-decoration: underline; }

/* ==== CROSS-LINK BAND (other calculators) ==== */
.calc-cross {
  background: var(--calc-paper);
  border-top: 1px solid var(--calc-rule);
  border-bottom: 1px solid var(--calc-rule);
  padding: 2.5rem 1.5rem;
  margin-top: 2rem;
}
.calc-cross-inner { max-width: 880px; margin: 0 auto; }
.calc-cross-h {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--calc-brand);
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: inline-flex; align-items: center; gap: 0.55rem;
}
.calc-cross-h::after {
  content: ''; display: inline-block;
  width: 18px; height: 1px;
  background: rgba(2,109,191,0.45);
}
.calc-cross-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}
/* No chunky left-border accent — per design ruleset for new card work.
   Visual hierarchy via typography + hover lift + small mono eyebrow. */
.calc-cross-card {
  display: block;
  padding: 0.95rem 1.1rem;
  background: white;
  border: 1px solid var(--calc-rule);
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.calc-cross-card:hover {
  transform: translateY(-2px);
  border-color: var(--calc-brand);
  box-shadow: 0 12px 24px -10px rgba(2,109,191,0.2);
}
.calc-cross-card .name {
  font-family: 'Fraunces', serif;
  font-size: 0.96rem; font-weight: 700;
  color: var(--calc-ink);
  line-height: 1.25;
  margin-bottom: 0.25rem;
}
.calc-cross-card .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--calc-quiet);
  letter-spacing: 0.06em;
}

/* Mobile tweaks */
@media (max-width: 640px) {
  .calc-shell { padding: 2rem 1rem 3rem; }
  .calc-panel-body { padding: 1.1rem 1.2rem; }
  .result-panel { padding: 1.3rem 1.4rem; min-height: 0; }
  .result-headline { font-size: 2rem; }
  .field { margin-bottom: 1rem; }
  .modal { max-width: 100%; }
  .modal-body { padding: 1.1rem; }
}