* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-size: var(--body-size); line-height: var(--body-leading); }
h1, h2, h3, p, dl, dd { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: var(--display-weight); letter-spacing: var(--display-tracking); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 0; }
::selection { background: var(--accent-soft); }
.page { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 clamp(22px, 5vw, var(--gutter)); }
.cover { padding: clamp(56px, 8vw, 104px) 0 clamp(38px, 5vw, 68px); }
h1 { font-size: clamp(38px, 6vw, 72px); line-height: 1.08; }
.audience { margin-top: 22px; color: var(--ink-soft); font-size: clamp(20px, 2.4vw, 30px); }
.subheading { margin-top: 26px; color: var(--accent); font-size: 18px; }
.contents { border-top: 0; padding: 24px 0 30px; }
.contents ul { display: flex; flex-wrap: wrap; column-gap: 26px; row-gap: 12px; list-style: none; margin: 0; padding: 0; }
.contents a { display: inline-block; font-size: 17px; padding: 3px 0; }
.topic { border-top: 0; padding: clamp(42px, 6.4vw, 82px) 0; scroll-margin-top: 28px; }
h2 { font-size: clamp(28px, 3.7vw, 44px); line-height: 1.16; }
.body { margin-top: clamp(24px, 3.2vw, 42px); }
.lead { font-size: clamp(25px, 3.25vw, 40px); line-height: 1.3; letter-spacing: -.025em; max-width: 27em; }
.definition { font-size: clamp(30px, 4vw, 50px); max-width: 20em; }
.support { margin-top: 24px; color: var(--ink-soft); font-size: clamp(19px, 2vw, 25px); line-height: 1.45; max-width: 36em; }
.accent { color: var(--accent); }
.note { border-left: 0; padding-left: 0; font-family: var(--font-display); font-style: italic; margin-top: 38px; font-size: clamp(19px, 2vw, 24px); line-height: 1.45; max-width: 42em; }
.secondary { display: block; margin-top: 9px; font-size: .9em; color: var(--ink-soft); }
.types { display: grid; grid-template-columns: 1fr 1.12fr 1.1fr; column-gap: 44px; row-gap: 32px; margin-top: 38px; }
.types dt { font-size: clamp(24px, 2.7vw, 32px); letter-spacing: -.025em; color: var(--accent); padding-bottom: 17px; border-bottom: 1px solid var(--rule); }
.types dd { font-size: clamp(20px, 1.9vw, 24px); line-height: 1.4; padding-top: 20px; }
.types ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.examples { display: grid; grid-template-columns: 1fr 1fr; column-gap: 50px; row-gap: 13px; padding: 0 0 0 22px; margin: 30px 0 0; font-size: clamp(20px, 2vw, 25px); line-height: 1.4; color: var(--ink-soft); }
.examples li { padding-left: 3px; }
.examples li::marker { color: var(--accent); font-size: .7em; }
.cac-subtitle { margin-top: 18px; color: var(--ink-soft); font-size: clamp(21px, 2.4vw, 28px); line-height: 1.4; }
.formula { display: flex; align-items: center; gap: 36px; margin: 42px 0; font-size: clamp(24px, 3vw, 36px); line-height: 1.3; letter-spacing: -.025em; max-width: 100%; }
.formula-name { color: var(--accent); white-space: nowrap; font-size: 1.3em; }
.fraction { display: flex; flex-direction: column; text-align: center; flex: 1; min-width: 0; }
.numerator { padding: 0 12px 18px; }
.denominator { border-top: 2px solid var(--ink); padding: 18px 12px 0; }
.footer { border-top: 1px solid var(--rule); padding: 28px 0 48px; font-size: 17px; }
@media (max-width: 820px) {
  .types { column-gap: 24px; }
  .types dt { font-size: 24px; }
  .types dd { font-size: 19px; }
}
@media (max-width: 680px) {
  .contents ul { column-gap: 20px; row-gap: 10px; }
  .types { grid-template-columns: 1fr; gap: 30px; }
  .types dt { font-size: 26px; padding-bottom: 12px; }
  .types dd { font-size: 20px; padding-top: 15px; }
  .types ul { gap: 9px; }
  .examples { grid-template-columns: 1fr; gap: 12px; }
  .note { padding-left: 16px; margin-top: 30px; }
  .formula { flex-direction: column; align-items: stretch; gap: 22px; font-size: clamp(21px, 5.5vw, 29px); margin: 34px 0; }
  .formula-name { text-align: center; }
  .numerator { padding: 0 0 15px; }
  .denominator { padding: 15px 0 0; }
}
@media print {
  @page { size: A4; margin: 14mm; }
  :root { background: Canvas; color: CanvasText; }
  body { font-size: 12pt; }
  .page { width: auto; padding: 0; }
  .cover { padding: 6mm 0 9mm; }
  h1 { font-size: 34pt; }
  .audience { font-size: 15pt; margin-top: 4mm; }
  .subheading { font-size: 11pt; margin-top: 4mm; }
  .contents, .footer { display: none; }
  .topic { padding: 8mm 0; break-inside: avoid; }
  h2 { font-size: 20pt; break-after: avoid; }
  .body { margin-top: 5mm; }
  .lead, .definition { font-size: 19pt; }
  .support { font-size: 12pt; margin-top: 4mm; }
  .note { font-size: 12pt; padding-left: 4mm; margin-top: 6mm; }
  .secondary { margin-top: 2mm; }
  .types { grid-template-columns: 1fr 1.12fr 1.1fr; column-gap: 6mm; margin-top: 6mm; }
  .types dt { font-size: 15pt; padding-bottom: 3mm; }
  .types dd { font-size: 11.5pt; padding-top: 4mm; }
  .types ul { gap: 2mm; }
  .examples { grid-template-columns: 1fr 1fr; font-size: 12pt; column-gap: 10mm; row-gap: 2mm; margin-top: 5mm; padding-left: 5mm; }
  .cac-subtitle { font-size: 13pt; margin-top: 3mm; }
  .formula { flex-direction: row; align-items: center; gap: 7mm; font-size: 17pt; margin: 7mm 0; }
  .numerator { padding: 0 2mm 3mm; }
  .denominator { padding: 3mm 2mm 0; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}
.calc-intro { margin-top: 22px; font-size: clamp(20px, 2.1vw, 26px); color: var(--ink-soft); }
.calc-assumption { margin-top: 26px; padding-left: 0; border-left: 0; font-size: 18px; line-height: 1.5; max-width: 56em; }
.calc-assumption p + p { margin-top: 10px; }
.calc-form { margin-top: 36px; }
.calc-form fieldset { min-width: 0; border: 0; border-top: 1px solid var(--rule); padding: 24px 0 0; margin: 30px 0 0; }
.calc-form legend { padding: 0 14px 0 0; font-weight: 700; font-size: 22px; line-height: 1.3; letter-spacing: -.02em; }
.calc-basics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.calc-field label { display: block; font-size: 17px; margin-bottom: 10px; }
.calc-field label span { display: block; color: var(--ink-soft); }
.calc-form input { display: block; width: 100%; min-width: 0; border: 1px solid var(--rule); border-radius: 0; padding: 12px 13px; background: var(--bg-elev); color: var(--ink); font: inherit; font-size: 19px; line-height: 1.4; }
.calc-form input::placeholder { color: var(--ink-soft); opacity: 1; }
.calc-form input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.calc-form input[aria-invalid="true"] { border-color: var(--accent); }
.calc-hint { margin-top: 14px; color: var(--ink-soft); font-size: 15px; line-height: 1.5; }
.expense-rows { display: flex; flex-direction: column; gap: 14px; }
.expense-row { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr) auto; gap: 10px; align-items: start; }
.calc-form button { border: 1px solid var(--rule); border-radius: 0; color: var(--accent); background: transparent; font: inherit; font-size: 16px; line-height: 1.4; padding: 13px 15px; cursor: pointer; }
.calc-form button:disabled { opacity: .65; cursor: wait; }
.calc-form button:hover { background: var(--bg-elev); }
.calc-form button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.calc-form .add-row { margin-top: 16px; }
.expense-row .remove-row { color: var(--ink-soft); padding-left: 12px; padding-right: 12px; }
.field-error { display: block; color: var(--accent); font-size: 15px; line-height: 1.4; margin-top: 8px; }
.expense-row .field-error { grid-column: 1 / -1; margin-top: 0; }
[hidden] { display: none !important; }
.calc-results { margin-top: 42px; padding-top: 28px; border-top: 2px solid var(--accent); }
.calc-results > h3 { font-size: 28px; line-height: 1.2; }
.calc-status { margin-top: 16px; font-size: 18px; line-height: 1.5; color: var(--ink-soft); }
.calc-status.warning { color: var(--accent); }
.calc-totals { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 36px; margin-top: 26px; font-size: 17px; }
.calc-totals dt { color: var(--ink-soft); }
.calc-totals dd { font-size: 24px; font-weight: 700; margin-top: 5px; overflow-wrap: anywhere; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 36px; margin-top: 30px; }
.result-item { border-top: 1px solid var(--rule); padding-top: 22px; min-width: 0; }
.result-item h4 { font-size: 22px; line-height: 1.3; margin: 0 0 12px; }
.metric-label { font-size: 16px; color: var(--ink-soft); }
.metric { display: block; margin-top: 7px; font-size: clamp(28px, 3.2vw, 40px); line-height: 1.2; letter-spacing: -.03em; color: var(--accent); overflow-wrap: anywhere; }
.metric-detail { font-size: 18px; margin-top: 14px; }
.metric-count { font-size: clamp(26px, 3vw, 37px); }
.calc-formulas { margin-top: 34px; font-size: 16px; line-height: 1.55; color: var(--ink-soft); }
.calc-formulas h3 { font-size: 20px; color: var(--ink); margin-bottom: 12px; }
.calc-formulas p + p { margin-top: 10px; }
.calc-noscript { margin-top: 24px; color: var(--accent); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 760px) {
  .calc-basics { grid-template-columns: 1fr; gap: 20px; }
  .calc-field label span { display: inline; }
  .calc-field label span::before { content: ' '; }
}
@media (max-width: 540px) {
  .calc-assumption { font-size: 16px; padding-left: 16px; }
  .calc-form legend { font-size: 20px; }
  .expense-row { grid-template-columns: minmax(0, 1fr) auto; }
  .expense-row .expense-name { grid-column: 1 / -1; }
  .expense-row .remove-row { grid-column: 2; grid-row: 2; }
  .result-grid, .calc-totals { grid-template-columns: 1fr; }
  .calc-form input { font-size: 17px; }
}
@media print {
  .calculator { break-inside: auto; }
  .calc-intro { font-size: 13pt; margin-top: 4mm; }
  .calc-assumption, .calc-status { font-size: 10pt; }
  .calc-form { margin-top: 5mm; }
  .calc-form fieldset { margin-top: 5mm; padding-top: 3mm; break-inside: avoid; }
  .calc-form legend { font-size: 12pt; }
  .calc-basics { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4mm; }
  .calc-field label, .calc-hint, .calc-form input { font-size: 10pt; }
  .calc-form input { padding: 2mm; }
  .calc-form button { display: none; }
  .expense-row { grid-template-columns: 1.65fr 1fr; gap: 2mm; }
  .expense-row .expense-name { grid-column: auto; }
  .calc-results { margin-top: 6mm; padding-top: 4mm; }
  .calc-results > h3 { font-size: 16pt; }
  .calc-totals, .result-grid { grid-template-columns: 1fr 1fr; gap: 5mm; margin-top: 5mm; }
  .calc-totals, .metric-detail { font-size: 10pt; }
  .calc-totals dd { font-size: 13pt; }
  .result-item { padding-top: 3mm; break-inside: avoid; }
  .result-item h4 { font-size: 13pt; }
  .metric-label { font-size: 10pt; }
  .metric, .metric-count { font-size: 21pt; }
  .calc-formulas { font-size: 10pt; margin-top: 5mm; }
  .calc-formulas h3 { font-size: 12pt; }
}
.result-wide { grid-column: 1 / -1; }
.mode-options { display: flex; flex-wrap: wrap; gap: 12px; }
.mode-options label { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border: 1px solid var(--rule); border-radius: 0; cursor: pointer; font-size: 18px; }
.mode-options label:has(input:checked) { background: var(--bg-elev); border-color: var(--accent); color: var(--accent); }
.calc-form .mode-options input { display: inline-block; width: 18px; min-width: 18px; height: 18px; margin: 0; padding: 0; accent-color: var(--accent); }
.subscription-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 28px; }
.calc-field label .calc-label-main { display: inline; color: var(--ink); }
.calc-field label .calc-label-main::before { content: none; }
.calc-field .field-hint { display: block; color: var(--ink-soft); font-size: 15px; margin-top: 8px; line-height: 1.45; }
@media (max-width: 680px) { .subscription-fields { grid-template-columns: 1fr; gap: 20px; } }
@media print { .mode-options label { font-size: 11pt; padding: 2mm 3mm; } .subscription-fields { gap: 4mm; margin-top: 5mm; } .calc-field .field-hint { font-size: 9pt; } }
.calc-form select { width: 100%; min-width: 0; border: 1px solid var(--rule); border-radius: 0; padding: 13px 10px; background: var(--bg-elev); color: var(--ink); font: inherit; font-size: 17px; line-height: 1.4; }
.calc-form select:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.expense-row.variable-row { grid-template-columns: minmax(0, 1.4fr) 158px minmax(0, 1fr) auto; }
@media (max-width: 680px) {
  .expense-row.variable-row { grid-template-columns: minmax(0, 1fr) auto; }
  .variable-row .expense-name, .variable-row .expense-type { grid-column: 1 / -1; }
  .variable-row .expense-amount { grid-column: 1; }
  .expense-row.variable-row .remove-row { grid-column: 2; grid-row: 3; }
}
@media print { .expense-row.variable-row { grid-template-columns: 1.4fr 1fr 1fr; } .variable-row .expense-name, .variable-row .expense-type, .variable-row .expense-amount { grid-column: auto; } .calc-form select { font-size: 10pt; padding: 2mm; } }
.calc-basics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.calc-form.subscription-mode .calc-basics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 760px) { .calc-basics, .calc-form.subscription-mode .calc-basics { grid-template-columns: 1fr; } }
.calc-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.report-name { margin-top: 28px; max-width: 600px; }
.calc-form .primary-action { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.calc-form .primary-action:hover { background: var(--accent); }

/* Shared chrome and the editorial/data split from arkadiy-ds 0.8. */
.webinar .page { flex: 1; }
.webinar main { padding-bottom: 0; }
.webinar .brand, .webinar .breadcrumbs a { color: inherit; }
.webinar .cover { padding-top: var(--stack-lg); }
.webinar .subheading { font-family: var(--font-display); font-style: italic; font-size: 19px; }
.webinar .lead, .webinar .definition { color: var(--ink); }
.webinar .topic { background: var(--bg); color: var(--ink); }
.webinar .calc-assumption { color: var(--ink-soft); }
.webinar .calc-form legend, .webinar .calc-results h3, .webinar .result-item h4,
.webinar .calc-formulas h3 { font-family: var(--font-body); font-weight: 600; letter-spacing: -.02em; }
.webinar .calc-form input, .webinar .calc-form select { font-family: var(--font-body); border-color: var(--ink-soft); }
.webinar .calc-form input[aria-invalid="true"] { border-color: var(--accent); }
.webinar #calc-revenue, .webinar #calc-target, .webinar #calc-lifetime,
.webinar #calc-first-price, .webinar .expense-amount, .webinar .calc-totals dd,
.webinar .metric, .webinar .metric-detail output, .webinar .formula-name {
  font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -.03em;
}
.webinar .calc-totals dd, .webinar .metric { font-weight: 500; }
.webinar .calc-form .primary-action { font-size: 19px; font-weight: 700; }
.webinar .calc-form .primary-action:hover { color: var(--bg); }
.webinar .webinar-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--stack-sm) var(--stack-md); margin-top: var(--stack-lg); border-top: 0; color: var(--ink-soft); font-size: 14px; }
.webinar .webinar-footer a { color: inherit; }
@media (max-width: 680px) {
  .webinar .cover { padding-top: var(--stack-lg); }
  .webinar .note, .webinar .calc-assumption { padding-left: 0; }
}
@media print {
  .webinar .site-header, .webinar .breadcrumbs, .webinar .webinar-footer { display: none; }
  .webinar, .webinar .page { background: Canvas; color: CanvasText; }
  .webinar * { background: transparent !important; color: CanvasText !important; }
}