/* ========================================================================
   business-plan.css — page-unique layout for the RetirePlusPlus
   $30M Series B Business Plan (deep-diligence document).

   Phase 1 page CSS (owner: P4-business-plan). Consumes ONLY the semantic
   tokens from vc-tokens.css and the shared component/utility/chart sheets
   (vc-base, vc-components, vc-utilities, vc-charts, vc-b2b2c).

   MIGRATED OFF Tailwind `dark:` utilities + bespoke `:root` palette (audit
   F6/F8): this file no longer defines a single raw hex or a `:root`/
   `[data-theme]` palette block — dark "just works" via the token roles.

   CSP: external CSS only. No inline style. The sole dynamic style used by
   the page JS is el.style.setProperty('--w', pct) on .dilution-seg (defined
   in vc-b2b2c.css) — nothing here needs it.
   ======================================================================== */

/* Smooth in-page nav with header offset so anchored sections clear the
   fixed nav (TOC links). Reduced-motion override lives in vc-utilities. */
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

/* ------------------------------------------------------------------------
   Page shell: a document with an optional sticky TOC rail on wide screens.
   Mobile-first: single column; the TOC becomes a collapsible accordion at
   the top. ≥64rem: a two-column [sticky TOC | prose] layout.
   ------------------------------------------------------------------------ */
.bp-shell {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--gutter) var(--space-16);
}
/* Clear the fixed nav (replaces an inline style for CSP). */
.bp-shell--navpad { padding-top: calc(var(--header-height) + var(--space-8)); }

@media (min-width: 64rem) {
  .bp-shell {
    display: grid;
    grid-template-columns: 16rem minmax(0, 1fr);
    gap: var(--space-12);
    align-items: start;
  }
}

/* Prose column never exceeds a comfortable measure for long-form reading. */
.bp-doc {
  min-width: 0;
  max-width: var(--max-width-prose);
  margin: 0 auto;
}
@media (min-width: 64rem) {
  .bp-doc { margin: 0; }
}

/* ------------------------------------------------------------------------
   Cover block (top of the document)
   ------------------------------------------------------------------------ */
.bp-cover {
  text-align: center;
  padding: var(--space-12) 0 var(--space-10);
  border-bottom: 0.0625rem solid var(--border-subtle);
  margin-bottom: var(--space-10);
}
.bp-cover__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.bp-cover__title {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0 0 var(--space-4);
}
.bp-cover__tagline {
  font-family: var(--font-ui);
  font-size: var(--fs-xl);
  font-weight: 300;
  line-height: 1.5;
  color: var(--text-secondary);
  max-width: 42rem;
  margin: 0 auto var(--space-6);
}
.bp-cover__accent {
  width: 5rem;
  height: 0.1875rem;
  margin: 0 auto var(--space-6);
  border-radius: var(--radius-pill);
  background: var(--grad-accent-line);
}
.bp-cover__meta {
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* Cover raise summary — 4 bound stats */
.bp-cover__raise {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6) var(--space-10);
  margin: var(--space-8) auto 0;
  padding: var(--space-5) var(--space-8);
  max-width: 44rem;
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  border: 0.0625rem solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}
.bp-cover__raise-item { text-align: center; min-width: 6rem; }
.bp-cover__raise-label {
  display: block;
  font-family: var(--font-data);
  font-size: var(--fs-2xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}
.bp-cover__raise-value {
  display: block;
  font-family: var(--font-data);
  font-size: var(--fs-2xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent-primary);
  line-height: 1.1;
}

/* ------------------------------------------------------------------------
   Sticky table of contents (desktop rail; mobile accordion)
   ------------------------------------------------------------------------ */
.bp-toc {
  margin-bottom: var(--space-8);
  border: 0.0625rem solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  overflow: hidden;
}
@media (min-width: 64rem) {
  .bp-toc {
    position: sticky;
    top: calc(var(--header-height) + var(--space-4));
    margin-bottom: 0;
    max-height: calc(100vh - var(--header-height) - var(--space-8));
    overflow-y: auto;
  }
}
/* Mobile: the TOC is a <details> accordion; desktop forces it open. */
.bp-toc > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}
.bp-toc > summary::-webkit-details-marker { display: none; }
.bp-toc > summary::after {
  content: "\25BE";                 /* ▾ */
  margin-left: auto;
  color: var(--text-muted);
  transition: transform var(--dur-fast) var(--ease-standard);
}
.bp-toc[open] > summary::after { transform: rotate(180deg); }
.bp-toc > summary:focus-visible {
  outline: 0.125rem solid transparent;
  box-shadow: var(--focus-ring);
}
.bp-toc__list {
  list-style: none;
  margin: 0;
  padding: var(--space-2) var(--space-2) var(--space-3);
  counter-reset: bptoc;
}
.bp-toc__list li { counter-increment: bptoc; }
.bp-toc__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  min-height: 2.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 0.1875rem solid transparent;
  transition: background var(--dur-fast) var(--ease-standard),
              color var(--dur-fast) var(--ease-standard);
}
.bp-toc__link::before {
  content: counter(bptoc, decimal-leading-zero);
  flex-shrink: 0;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  min-width: 1.5rem;
}
.bp-toc__link:hover {
  background: var(--bg-surface-2);
  color: var(--text-primary);
  text-decoration: none;
}
.bp-toc__link:focus-visible {
  outline: 0.125rem solid transparent;
  box-shadow: var(--focus-ring);
}
/* active section (JS sets aria-current via IntersectionObserver) */
.bp-toc__link[aria-current="true"] {
  color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 10%, transparent);
  border-left-color: var(--accent-primary);
}
.bp-toc__link[aria-current="true"]::before { color: var(--accent-primary); }

/* Force the accordion open on desktop (no toggle needed there). */
@media (min-width: 64rem) {
  .bp-toc > summary { cursor: default; }
  .bp-toc > summary::after { display: none; }
  .bp-toc__list { display: block !important; }
}

/* ------------------------------------------------------------------------
   Numbered document sections
   ------------------------------------------------------------------------ */
.bp-section {
  padding: var(--space-10) 0;
  border-top: 0.0625rem solid var(--border-subtle);
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}
.bp-section:first-of-type { border-top: none; padding-top: var(--space-4); }

.bp-section__head { margin-bottom: var(--space-6); }
.bp-section__num {
  font-family: var(--font-data);
  font-size: var(--fs-6xl);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  /* faint, watermark-style numeral that reads in both themes */
  color: var(--border-subtle);
  display: block;
}
.bp-section__title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-1) 0 var(--space-3);
}
.bp-section__title .bp-section__icon {
  color: var(--accent-primary);
  font-size: var(--fs-2xl);
}
.bp-section__rule {
  height: 0.125rem;
  border: none;
  border-radius: var(--radius-pill);
  background: var(--grad-accent-line);
  width: 4rem;
  margin: 0;
}

/* Subheads inside a section */
.bp-subhead {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-data);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--space-8) 0 var(--space-3);
}
.bp-subhead .bp-subhead__icon { color: var(--accent-primary); font-size: var(--fs-lg); }

/* Body copy */
.bp-lead {
  font-size: var(--fs-lg);
  line-height: 1.65;
  color: var(--text-secondary);
  margin: 0 0 var(--space-4);
}
.bp-p {
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 var(--space-4);
}
.bp-p strong, .bp-li strong { color: var(--text-primary); font-weight: 700; }

/* Feature / bullet lists with leading icons */
.bp-list {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  gap: var(--space-3);
}
.bp-li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--text-secondary);
}
.bp-li__icon {
  flex-shrink: 0;
  margin-top: 0.2em;
  color: var(--accent-primary);
}
.bp-li--ok .bp-li__icon { color: var(--accent-secondary); }

/* A plain bulleted list (real <ul>) for short enumerations */
.bp-ul {
  margin: 0 0 var(--space-6);
  padding-left: var(--space-6);
  color: var(--text-secondary);
  line-height: 1.7;
}
.bp-ul li { margin-bottom: var(--space-2); }

/* ------------------------------------------------------------------------
   "Illustrative — for discussion" tag (labeling rule, spec §5)
   ------------------------------------------------------------------------ */
.bp-illus {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-partner);
  background: color-mix(in srgb, var(--accent-partner) 14%, transparent);
}
.bp-illus__icon { font-size: var(--fs-2xs); }
/* Block-level note variant */
.bp-illus-note {
  margin: var(--space-3) 0 var(--space-6);
  font-family: var(--font-data);
  font-size: var(--fs-xs);
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ------------------------------------------------------------------------
   Highlight panel (investment highlights, the ask, etc.)
   ------------------------------------------------------------------------ */
.bp-panel {
  border: 0.0625rem solid var(--border-subtle);
  border-left: 0.25rem solid var(--accent-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  background: var(--bg-surface);
  padding: var(--space-6);
  margin: var(--space-6) 0;
}
.bp-panel--green { border-left-color: var(--accent-secondary); }
.bp-panel--partner { border-left-color: var(--accent-partner); }
.bp-panel__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-data);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-4);
}
.bp-panel__title .bp-panel__icon { color: var(--accent-primary); }
.bp-panel--green .bp-panel__title .bp-panel__icon { color: var(--accent-secondary); }
.bp-panel--partner .bp-panel__title .bp-panel__icon { color: var(--accent-partner); }

/* ------------------------------------------------------------------------
   TAM / SAM / SOM funnel (token-driven; replaces the old hard-hex funnel)
   ------------------------------------------------------------------------ */
.bp-funnel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-6) 0;
}
.bp-funnel__level {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  color: var(--text-on-brand);
  font-family: var(--font-data);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.bp-funnel__level--tam { width: 100%; background: var(--accent-primary); font-size: var(--fs-lg); }
.bp-funnel__level--sam { width: 78%; background: var(--accent-secondary); font-size: var(--fs-base); }
.bp-funnel__level--som { width: 56%; background: var(--accent-partner); font-size: var(--fs-base); }
.bp-funnel__icon { opacity: 0.85; }

/* ------------------------------------------------------------------------
   Generic two-column responsive media grid (chart + supporting card)
   ------------------------------------------------------------------------ */
.bp-split {
  display: grid;
  gap: var(--space-6);
  margin: var(--space-6) 0;
}
@media (min-width: 48rem) {
  .bp-split { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* Revenue-stream / strategic-benefit card grid */
.bp-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.bp-card {
  background: var(--bg-surface);
  border: 0.0625rem solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.bp-card__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.bp-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  font-size: var(--fs-lg);
  color: var(--text-on-brand);
  background: var(--accent-primary);
}
.bp-card:nth-child(4n+2) .bp-card__icon { background: var(--accent-secondary); }
.bp-card:nth-child(4n+3) .bp-card__icon { background: var(--accent-tertiary); }
.bp-card:nth-child(4n+4) .bp-card__icon { background: var(--accent-partner); }
.bp-card__title {
  font-family: var(--font-data);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.bp-card__pct {
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent-primary);
}
.bp-card__body {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* Compact inline metric row (unit economics etc.) inside a green panel */
.bp-metric-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (min-width: 40rem) {
  .bp-metric-row { grid-template-columns: repeat(4, 1fr); }
}
.bp-metric-cell { text-align: center; }
.bp-metric-cell__value {
  font-family: var(--font-data);
  font-size: var(--fs-3xl);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent-secondary);
  line-height: 1.1;
}
.bp-metric-cell__label {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}
.bp-metric-cell__note {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--fs-2xs);
  color: var(--text-muted);
  font-style: italic;
}

/* ------------------------------------------------------------------------
   Partnership tier table accents (uses .vc-table base)
   ------------------------------------------------------------------------ */
.bp-tier {
  display: inline-flex;
  align-items: center;
  padding: 0.0625rem var(--space-2);
  border-radius: var(--radius-pill);
  font-family: var(--font-data);
  font-size: var(--fs-2xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.bp-tier--t1 { color: var(--accent-primary);   background: color-mix(in srgb, var(--accent-primary) 14%, transparent); }
.bp-tier--t2 { color: var(--accent-secondary); background: color-mix(in srgb, var(--accent-secondary) 14%, transparent); }
.bp-tier--t3 { color: var(--accent-partner);   background: color-mix(in srgb, var(--accent-partner) 14%, transparent); }

/* ------------------------------------------------------------------------
   Risks & Mitigations — paired rows
   ------------------------------------------------------------------------ */
.bp-risks {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
.bp-risk {
  display: grid;
  gap: var(--space-2) var(--space-5);
  padding: var(--space-5);
  background: var(--bg-surface);
  border: 0.0625rem solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 48rem) {
  .bp-risk { grid-template-columns: 1fr 1.6fr; align-items: start; }
}
.bp-risk__label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-family: var(--font-data);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}
.bp-risk__label .bp-risk__icon { color: var(--status-warning); margin-top: 0.15em; flex-shrink: 0; }
.bp-risk__mit {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}
.bp-risk__mit-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-data);
  font-size: var(--fs-2xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-secondary);
  margin-right: var(--space-2);
}

/* ------------------------------------------------------------------------
   Launch-ready proof chips
   ------------------------------------------------------------------------ */
.bp-proof {
  list-style: none;
  margin: var(--space-4) 0 var(--space-6);
  padding: 0;
  display: grid;
  gap: var(--space-3);
}
.bp-proof li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}
.bp-proof__icon {
  flex-shrink: 0;
  margin-top: 0.15em;
  color: var(--accent-secondary);
}

/* ------------------------------------------------------------------------
   Capitalization: notes line under the cap table
   ------------------------------------------------------------------------ */
.bp-captable-wrap { margin: var(--space-6) 0; }

/* ------------------------------------------------------------------------
   Team grid (token-driven; bound from company.team)
   ------------------------------------------------------------------------ */
.bp-team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-6);
  margin: var(--space-6) 0;
}
.bp-team__card {
  background: var(--bg-surface);
  border: 0.0625rem solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.bp-team__avatar {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto var(--space-3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: var(--text-on-brand);
  background: var(--grad-brand);
}
.bp-team__card:nth-child(3n+2) .bp-team__avatar { background: var(--grad-growth); }
.bp-team__card:nth-child(3n+3) .bp-team__avatar { background: var(--grad-ai); }
.bp-team__name {
  font-family: var(--font-data);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-primary);
}
.bp-team__role {
  font-family: var(--font-data);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--accent-primary);
  margin: var(--space-1) 0 var(--space-3);
}
.bp-team__bio {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* ------------------------------------------------------------------------
   Appendix doc grid uses shared .doc-grid/.doc-card; nothing page-specific.
   ------------------------------------------------------------------------ */

/* ------------------------------------------------------------------------
   Print refinements specific to the business plan.
   (Shared component print rules live in vc-components.css / vc-print.css.)
   ------------------------------------------------------------------------ */
@media print {
  .bp-shell { display: block; max-width: none; padding: 0; }
  .bp-toc {
    position: static;
    max-height: none;
    page-break-after: always;
    border-color: #ddd;
  }
  .bp-toc > summary::after { display: none; }
  .bp-toc__list { display: block !important; }
  .bp-section { page-break-before: always; border-top: none; }
  .bp-section:first-of-type { page-break-before: avoid; }
  .bp-cover { page-break-after: always; border-bottom: none; }
  .bp-section__num { color: #e5e5e5; }
  .bp-card, .bp-risk, .bp-team__card, .bp-panel {
    box-shadow: none;
    page-break-inside: avoid;
  }
  .bp-funnel__level,
  .bp-cover__raise-value,
  .bp-metric-cell__value { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}