/* Marketing calculators — additions on top of design-md.css. The dm-* shell
   provides the page frame; this file styles the calculator form, the result
   rows, the prose sections and the hub cards. Colours come from the shared
   design tokens. */

/* The form spans the full content column, like the seo-md/og-checker input
   furniture — a narrower card left the right half of the page empty. */
.calc-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: clamp(20px, 3vw, 28px);
}

.calc-hint {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--muted-foreground);
}

.calc-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.calc-field label {
  display: block;
  font-size: 13px;
  font-weight: 550;
  margin-bottom: 6px;
  color: var(--foreground);
}

.calc-input {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 12px;
  background: var(--background, #fff);
  transition: border-color 160ms ease;
}
.calc-input:focus-within {
  border-color: var(--foreground);
}
.calc-input span {
  color: var(--muted-foreground);
  font-size: 14px;
  flex: none;
}
.calc-input input,
.calc-input select {
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--foreground);
  font-size: 16px;
  height: 44px;
  width: 100%;
  min-width: 0;
}

.calc-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.calc-go {
  min-height: 44px;
}

.calc-error {
  margin: 14px 0 0;
  font-size: 14px;
  color: #d1443b;
}

.calc-result {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
  display: grid;
  gap: 16px;
}
.calc-result-row .calc-result-label {
  display: block;
  font-size: 12px;
  font-weight: 550;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-foreground);
}
.calc-result-row strong {
  display: block;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 300;
  line-height: 1.15;
  margin: 4px 0 6px;
  color: var(--foreground);
}
.calc-result-row p {
  margin: 0;
  font-size: 15px;
  color: var(--muted-foreground);
}

.calc-formula-chip {
  margin: 14px 0 0;
}
.calc-formula-chip code {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--muted-foreground);
  background: transparent;
}

/* Prose sections between the tool and the FAQ. The border-top spans the
   full column (house rule: dividers never stop mid-page); the text inside
   stays at a readable measure. */
.calc-section {
  border-top: 1px solid var(--border);
  padding: clamp(48px, 7vw, 80px) 0;
}
.calc-section > * {
  max-width: 720px;
}
.calc-section h2 {
  margin: 0 0 16px;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 400;
  letter-spacing: -0.03em;
}
.calc-section h3 {
  margin: 24px 0 8px;
  font-size: 17px;
  font-weight: 550;
}
.calc-section p {
  margin: 0 0 12px;
  line-height: 1.65;
}
.calc-section code {
  font-size: 0.95em;
}
.calc-mini {
  margin-top: 8px;
}

.calc-related {
  border-top: 1px solid var(--border);
  padding: clamp(32px, 5vw, 48px) 0;
}
.calc-related h2 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 550;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-foreground);
}
.calc-related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.calc-related-links a {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13.5px;
  color: var(--foreground);
  text-decoration: none;
  transition: border-color 160ms ease;
}
.calc-related-links a:hover {
  border-color: var(--foreground);
}

/* Hub cards: the formula is the preview. */
.calc-hub-card code {
  display: block;
  font-size: 12.5px;
  color: var(--muted-foreground);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 14px;
  background: transparent;
  overflow-x: auto;
  white-space: nowrap;
}
.calc-hub-card strong {
  display: block;
  margin-bottom: 4px;
}
.calc-hub-card span {
  font-size: 14px;
  color: var(--muted-foreground);
}