/* =========================================================
   Project Atlas — Stylesheet (V5)
   "Building a company, not selling a dream."
   A 60/30/10 system: a large soft-white content area (60,
   dominant, Apple-documentation calm), a dark charcoal
   sidebar (30, premium navigation), and a restrained lime
   accent (10, signal only — active state, badges, progress).
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Content surface — the 60%, dominant and light */
  --bg: #f6f7f5;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --bg-hover: #f0f2ee;
  --bg-sunken: #eef0ec;

  --text-primary: #14171a;
  --text-secondary: #565d5a;
  --text-tertiary: #868c87;
  --text-quaternary: #c7cbc2;

  --border: #e4e7e1;
  --border-strong: #d6dad2;
  --border-hover: #c1c6bb;

  /* Sidebar surface — the 30%, dark and premium */
  --sb-bg: #111315;
  --sb-bg-hover: #1a1d20;
  --sb-border: #23262a;
  --sb-border-strong: #2c3034;
  --sb-text-primary: #f5f7fa;
  --sb-text-secondary: #9aa1ab;
  --sb-text-tertiary: #656d76;

  /* Accent — the 10%, lime green, signal only */
  --accent: #66c82e;
  --accent-dark: #3c7a16;
  --accent-bg: rgba(102, 200, 46, 0.12);
  --accent-bg-strong: rgba(102, 200, 46, 0.18);
  --accent-border: rgba(102, 200, 46, 0.38);

  --shadow-soft: 0 1px 2px rgba(20, 23, 26, 0.04), 0 8px 20px rgba(20, 23, 26, 0.045);
  --shadow-lift: 0 4px 10px rgba(20, 23, 26, 0.06), 0 18px 40px rgba(20, 23, 26, 0.07);
  --shadow-sidebar: 2px 0 24px rgba(0, 0, 0, 0.18);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --sidebar-width: 296px;
  --sidebar-width-collapsed: 84px;
  --content-max-width: 840px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
table { border-collapse: collapse; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.section { animation: fadeUp 0.5s var(--ease) both; }

/* ---------- Scroll progress bar ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  z-index: 200;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(102, 200, 46, 0.45);
  transition: width 0.12s var(--ease);
}

/* ---------- Layout ---------- */
.app { display: flex; min-height: 100vh; }

/* ---------- Sidebar (dark, 30%) ---------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--sb-bg);
  box-shadow: var(--shadow-sidebar);
  padding: 32px 22px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width 0.25s var(--ease), padding 0.25s var(--ease);
  z-index: 20;
}

.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--sb-border-strong); border-radius: 6px; }

.sidebar__brand { margin-bottom: 28px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 0 6px; }
.sidebar__brand-left { display: flex; align-items: center; gap: 11px; min-width: 0; }
.sidebar__brand-text { min-width: 0; transition: opacity 0.18s var(--ease); }

.sidebar__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-bg-strong);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar__eyebrow { font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--sb-text-tertiary); margin-bottom: 6px; white-space: nowrap; }
.sidebar__title { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; color: var(--sb-text-primary); white-space: nowrap; }

.sidebar__collapse {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--sb-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sb-text-tertiary);
  transition: border-color 0.15s var(--ease), color 0.15s var(--ease), background 0.15s ease;
  margin-top: 2px;
}
.sidebar__collapse:hover { color: var(--sb-text-primary); border-color: var(--sb-border-strong); background: var(--sb-bg-hover); }
.sidebar__collapse svg { transition: transform 0.25s var(--ease); }

.sidebar__scroll { flex: 1; display: flex; flex-direction: column; gap: 20px; }

.sidebar__group-label { font-size: 10px; letter-spacing: 0.11em; text-transform: uppercase; color: var(--sb-text-tertiary); padding: 0 12px; margin-bottom: 6px; white-space: nowrap; opacity: 0.8; }

.sidebar__list { display: flex; flex-direction: column; gap: 1px; }

.sidebar__list a {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 8.5px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--sb-text-secondary);
  border: 1px solid transparent;
  white-space: nowrap;
  position: relative;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease), padding-left 0.16s var(--ease);
}

.sidebar__list a .nav-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--sb-text-tertiary); flex-shrink: 0; transition: background 0.16s var(--ease), box-shadow 0.16s var(--ease); }

.sidebar__list a:hover { background: var(--sb-bg-hover); color: var(--sb-text-primary); padding-left: 15px; }
.sidebar__list a:hover .nav-dot { background: var(--sb-text-secondary); }

.sidebar__list a.active { background: var(--accent-bg); color: var(--sb-text-primary); border-color: var(--accent-border); font-weight: 500; }
.sidebar__list a.active .nav-dot { background: var(--accent); box-shadow: 0 0 6px rgba(102, 200, 46, 0.7); }

.sidebar__footer { padding-top: 18px; margin-top: 4px; border-top: 1px solid var(--sb-border); font-size: 11px; color: var(--sb-text-tertiary); white-space: nowrap; }

/* Collapsed sidebar state */
.sidebar.collapsed { width: var(--sidebar-width-collapsed); padding-left: 16px; padding-right: 16px; }
.sidebar.collapsed .sidebar__brand-text,
.sidebar.collapsed .sidebar__footer,
.sidebar.collapsed .sidebar__group-label,
.sidebar.collapsed .sidebar__list a span:not(.nav-dot) { opacity: 0; pointer-events: none; position: absolute; }
.sidebar.collapsed .sidebar__footer, .sidebar.collapsed .sidebar__group-label { display: none; }
.sidebar.collapsed .sidebar__brand { justify-content: center; }
.sidebar.collapsed .sidebar__brand-left { gap: 0; }
.sidebar.collapsed .sidebar__list a { justify-content: center; padding-left: 0; padding-right: 0; }
.sidebar.collapsed .sidebar__list a:hover { padding-left: 0; }
.sidebar.collapsed .sidebar__collapse svg { transform: rotate(180deg); }

/* ---------- Mobile top bar (dark, matches sidebar) ---------- */
.mobile-bar { display: none; position: sticky; top: 0; z-index: 150; align-items: center; justify-content: space-between; padding: 16px 20px; background: var(--sb-bg); border-bottom: 1px solid var(--sb-border); }
.mobile-bar__title { font-size: 16px; font-weight: 600; color: var(--sb-text-primary); }
.mobile-bar__toggle { display: flex; flex-direction: column; gap: 4px; padding: 8px; }
.mobile-bar__toggle span { width: 20px; height: 2px; background: var(--sb-text-primary); border-radius: 2px; transition: transform 0.2s var(--ease), opacity 0.2s var(--ease); }

.backdrop { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); z-index: 90; backdrop-filter: blur(2px); }

/* ---------- Content (light, 60%) ---------- */
.content { flex: 1; min-width: 0; padding: 88px 60px 40px; background: var(--bg); }

.content__footer { max-width: var(--content-max-width); margin: 110px auto 0; padding-top: 26px; border-top: 1px solid var(--border); color: var(--text-tertiary); font-size: 13px; }
.content__footer-credit { margin-top: 8px; font-size: 12px; color: var(--text-quaternary); }
.content__footer-credit a { color: var(--text-tertiary); border-bottom: 1px solid var(--border-strong); transition: color 0.15s var(--ease), border-color 0.15s var(--ease); }
.content__footer-credit a:hover { color: var(--accent-dark); border-color: var(--accent-border); }

.section { max-width: var(--content-max-width); margin: 0 auto; padding-bottom: 140px; scroll-margin-top: 40px; position: relative; }
.section--conclusion { padding-bottom: 90px; }
.section--dashboard { padding-bottom: 104px; }

.section__index {
  position: absolute;
  top: -14px;
  right: -16px;
  font-size: 150px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  opacity: 0.028;
  z-index: 0;
  pointer-events: none;
  letter-spacing: -0.04em;
  user-select: none;
}

.section__eyebrow { font-size: 11.5px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 14px; position: relative; z-index: 1; }
.section__title { font-size: 38px; font-weight: 600; letter-spacing: -0.025em; color: var(--text-primary); margin-bottom: 14px; position: relative; z-index: 1; }
.section__subtitle { font-size: 16px; line-height: 1.6; color: var(--text-secondary); max-width: 640px; margin-bottom: 36px; position: relative; z-index: 1; }
.section + .section { border-top: 1px solid var(--border); padding-top: 84px; }

.subsection-title { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; color: var(--text-primary); margin: 48px 0 6px; position: relative; z-index: 1; }
.subsection-eyebrow { font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-tertiary); margin: 0 0 12px; position: relative; z-index: 1; }

/* ---------- Quick-insight row (What / Why / How / What's next) ---------- */
.qa-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 30px; position: relative; z-index: 1; }
.qa-block { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; }
.qa-block__label { font-size: 10px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--accent-dark); margin-bottom: 6px; }
.qa-block__value { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* ---------- KPI / executive dashboard cards ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; position: relative; z-index: 1; margin-bottom: 16px; }
.kpi-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 20px 22px; transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease); box-shadow: var(--shadow-soft); }
.kpi-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.kpi-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.kpi-card__label { font-size: 10.5px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-tertiary); }
.kpi-card__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 6px rgba(102, 200, 46, 0.55); }
.kpi-card__value { font-size: 18px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em; line-height: 1.35; }

/* ---------- Focus / next-actions widget ---------- */
.widget-row { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; margin-bottom: 16px; position: relative; z-index: 1; }
.widget { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px 26px; box-shadow: var(--shadow-soft); }
.widget__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.widget__title { font-size: 14px; font-weight: 600; color: var(--text-primary); }

.action-list { display: flex; flex-direction: column; gap: 14px; }
.action-item { display: flex; align-items: flex-start; gap: 12px; }
.action-item__index { flex-shrink: 0; width: 20px; height: 20px; border-radius: 6px; border: 1px solid var(--border-strong); background: var(--bg-hover); color: var(--text-tertiary); font-size: 10.5px; font-weight: 600; display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.action-item__text { font-size: 13.5px; color: var(--text-secondary); line-height: 1.55; }
.action-item__text strong { color: var(--text-primary); font-weight: 500; }

/* Founder note */
.founder-note { border-left: 2px solid var(--accent); background: var(--bg-card); border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 20px 24px; position: relative; z-index: 1; box-shadow: var(--shadow-soft); }
.founder-note__label { font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-dark); margin-bottom: 10px; }
.founder-note p { font-size: 14.5px; color: var(--text-secondary); line-height: 1.65; }

/* ---------- Business flywheel / business model flow ---------- */
.flywheel { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; position: relative; z-index: 1; margin-bottom: 8px; }
.flywheel__step { padding: 10px 16px; border-radius: 999px; border: 1px solid var(--border-strong); background: var(--bg-card); font-size: 13px; font-weight: 500; color: var(--text-primary); white-space: nowrap; }
.flywheel__arrow { color: var(--text-quaternary); font-size: 14px; flex-shrink: 0; }
.flywheel__loop { color: var(--accent-dark); font-size: 12px; font-weight: 600; white-space: nowrap; margin-left: 4px; }

.model-flow { position: relative; padding-left: 10px; z-index: 1; }
.model-flow__item { display: flex; align-items: center; gap: 18px; position: relative; padding-bottom: 26px; }
.model-flow__item:last-child { padding-bottom: 0; }
.model-flow__item::before { content: ""; position: absolute; left: 15px; top: 32px; bottom: -2px; width: 1px; background: var(--border-strong); }
.model-flow__item:last-child::before { display: none; }
.model-flow__marker { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-strong); background: var(--bg-card); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; color: var(--text-primary); z-index: 1; }
.model-flow__item:hover .model-flow__marker { border-color: var(--accent-border); background: var(--accent-bg); color: var(--accent-dark); }
.model-flow__label { font-size: 15.5px; font-weight: 600; color: var(--text-primary); }
.model-flow__note { font-size: 13px; color: var(--text-tertiary); margin-top: 2px; }

/* ---------- Cards ---------- */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px 24px; box-shadow: var(--shadow-soft); margin-bottom: 16px; transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease); }
.card:hover { border-color: var(--border-hover); transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.card h3 { font-size: 15px; font-weight: 600; margin-bottom: 7px; color: var(--text-primary); letter-spacing: -0.005em; }
.card p { font-size: 13.5px; color: var(--text-secondary); }
.card--static:hover { transform: none; box-shadow: var(--shadow-soft); }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 16px; position: relative; z-index: 1; }
.card-grid .card { margin-bottom: 0; }
.card-grid--2up { grid-template-columns: repeat(2, 1fr); }

/* ---------- Badges / pills ---------- */
.badge { display: inline-block; font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-secondary); background: var(--bg-hover); border: 1px solid var(--border-strong); padding: 5px 11px; border-radius: 999px; margin-bottom: 14px; }

.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 10.5px; letter-spacing: 0.04em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text-secondary); background: var(--bg-hover); white-space: nowrap; }
.pill--accent { color: var(--accent-dark); border-color: var(--accent-border); background: var(--accent-bg); }
.pill--accent .pill__dot { background: var(--accent); }
.pill__dot { width: 5px; height: 5px; border-radius: 50%; background: var(--text-tertiary); }

/* Priority tier badges */
.tier-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 10.5px; letter-spacing: 0.05em; text-transform: uppercase; padding: 5px 12px; border-radius: 999px; font-weight: 600; }
.tier-badge--1 { color: var(--accent-dark); border: 1px solid var(--accent-border); background: var(--accent-bg); }
.tier-badge--2 { color: var(--text-secondary); border: 1px solid var(--border-strong); background: var(--bg-hover); }
.tier-badge--watch { color: var(--text-tertiary); border: 1px dashed var(--border-strong); background: transparent; }

/* ---------- Callouts & quotes ---------- */
.callout { border-left: 2px solid var(--border-strong); background: var(--bg-card); padding: 20px 24px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin-bottom: 24px; position: relative; z-index: 1; box-shadow: var(--shadow-soft); }
.callout p { color: var(--text-primary); font-size: 14.5px; line-height: 1.65; }
.callout p + p { margin-top: 12px; }
.callout--emphasis { border-left-color: var(--accent); }
.callout--final { border-left-color: var(--accent); padding: 30px 32px; }
.callout--final p:first-child { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 14px; }

.quote { font-size: 18px; font-weight: 500; font-style: italic; color: var(--text-primary); border-left: 2px solid var(--border-strong); padding: 4px 24px; margin: 30px 0; max-width: 580px; line-height: 1.5; position: relative; z-index: 1; }

/* ---------- Split / comparison layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; position: relative; z-index: 1; }
.split__col { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 22px; transition: border-color 0.2s var(--ease); box-shadow: var(--shadow-soft); }
.split__col:hover { border-color: var(--border-hover); }
.split__heading { font-size: 11.5px; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.split__heading--no { color: var(--text-tertiary); }
.split__heading--yes { color: var(--accent-dark); }

/* ---------- Lists ---------- */
.list { display: flex; flex-direction: column; gap: 8px; }
.list li { font-size: 13.5px; padding-left: 17px; position: relative; }
.list li::before { content: "—"; position: absolute; left: 0; color: var(--text-tertiary); }
.list--muted li { color: var(--text-tertiary); }
.list--highlight li { color: var(--text-primary); }

/* ---------- Tags ---------- */
.tag-grid { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 24px; position: relative; z-index: 1; }
.tag { font-size: 13px; color: var(--text-secondary); background: var(--bg-card); border: 1px solid var(--border); padding: 8px 14px; border-radius: 999px; transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease); }
.tag:hover { border-color: var(--accent-border); color: var(--accent-dark); transform: translateY(-1px); }

.tag--not { color: var(--text-quaternary); background: var(--bg); border-style: dashed; text-decoration: line-through; }
.tag--not:hover { border-color: var(--border-strong); color: var(--text-tertiary); transform: none; }

/* ---------- Progress bars ---------- */
.progress-track { width: 100%; height: 6px; border-radius: 999px; background: var(--bg-hover); border: 1px solid var(--border); overflow: hidden; }
.progress-fill { height: 100%; border-radius: 999px; background: var(--accent); transition: width 0.6s var(--ease); }
.progress-fill--muted { background: var(--text-quaternary); }

/* ---------- Market tier grid ---------- */
.tier-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 30px; position: relative; z-index: 1; }
.tier-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 20px; box-shadow: var(--shadow-soft); transition: border-color 0.2s var(--ease), transform 0.2s var(--ease); }
.tier-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.tier-card__name { font-size: 14.5px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.tier-card__reason { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

.watch-list { display: flex; flex-wrap: wrap; gap: 9px; position: relative; z-index: 1; }

/* ---------- Table ---------- */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: 24px; position: relative; z-index: 1; box-shadow: var(--shadow-soft); }
.table-wrap--scroll { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 14px 20px; font-size: 13.5px; border-bottom: 1px solid var(--border); }
.table th { background: var(--bg-hover); color: var(--text-tertiary); font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; font-size: 10.5px; }
.table td:first-child { color: var(--text-primary); font-weight: 500; white-space: nowrap; }
.table td:last-child { color: var(--text-secondary); }
.table tr { transition: background 0.15s var(--ease); }
.table tbody tr:hover { background: var(--bg-hover); }
.table tr:last-child td { border-bottom: none; }
.muted-inline { color: var(--text-tertiary); font-weight: 400; }

.table--compare th:nth-child(4), .table--compare td:nth-child(4) { background: var(--accent-bg); border-left: 1px solid var(--accent-border); border-right: 1px solid var(--accent-border); }
.table--compare th:nth-child(4) { color: var(--accent-dark); font-weight: 700; }

.mark { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; font-size: 12px; border: 1px solid var(--border-strong); color: var(--text-secondary); }
.mark--full { color: var(--accent-dark); border-color: var(--accent-border); background: var(--accent-bg); }
.mark--partial { color: var(--text-tertiary); }
.mark--none { color: var(--text-quaternary); border-style: dashed; }

/* ---------- Accordion ---------- */
.accordion { border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: 20px; position: relative; z-index: 1; box-shadow: var(--shadow-soft); }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-trigger { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 17px 22px; background: var(--bg-card); transition: background 0.18s var(--ease); }
.accordion-trigger:hover { background: var(--bg-hover); }
.accordion-trigger__main { display: flex; align-items: center; gap: 14px; flex: 1; min-width: 0; }
.accordion-trigger__title { font-size: 14px; font-weight: 500; color: var(--text-primary); flex-shrink: 0; }
.accordion-icon { font-size: 17px; color: var(--text-tertiary); transition: transform 0.25s var(--ease); line-height: 1; flex-shrink: 0; }
.accordion-trigger[aria-expanded="true"] .accordion-icon { transform: rotate(45deg); }
.accordion-panel { max-height: 0; overflow: hidden; background: var(--bg-sunken); transition: max-height 0.3s var(--ease); }
.accordion-panel > * { padding: 4px 22px 22px; }
.accordion-panel p + p { margin-top: 10px; }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; padding: 6px 22px 22px !important; }
.detail-grid__block--wide { grid-column: 1 / -1; }
.detail-grid__label { font-size: 10px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 6px; }
.detail-grid__value { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.detail-grid__value strong { color: var(--text-primary); font-weight: 500; }

/* ---------- Roadmap ---------- */
.roadmap { position: relative; padding-left: 10px; z-index: 1; }
.roadmap__item { display: flex; gap: 20px; position: relative; padding-bottom: 34px; }
.roadmap__item:last-child { padding-bottom: 0; }
.roadmap__item::before { content: ""; position: absolute; left: 15px; top: 36px; bottom: -2px; width: 1px; background: var(--border-strong); }
.roadmap__item:last-child::before { display: none; }
.roadmap__marker { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-strong); background: var(--bg-card); display: flex; align-items: center; justify-content: center; font-size: 12.5px; font-weight: 600; color: var(--text-primary); z-index: 1; transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease); }
.roadmap__item:hover .roadmap__marker { border-color: var(--accent-border); background: var(--accent-bg); color: var(--accent-dark); }
.roadmap__content { padding-top: 4px; flex: 1; min-width: 0; }
.roadmap__content h3 { font-size: 15.5px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.005em; }
.roadmap__content > p { font-size: 13.5px; color: var(--text-secondary); max-width: 520px; margin-bottom: 14px; }
.roadmap__facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 15px 17px; max-width: 640px; }
.roadmap__fact-label { font-size: 9.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 6px; }
.roadmap__fact-value { font-size: 12.5px; color: var(--text-secondary); line-height: 1.5; }

/* ---------- Risk cards ---------- */
.risk-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; position: relative; z-index: 1; margin-bottom: 18px; }
.risk-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 20px; transition: border-color 0.2s var(--ease), transform 0.2s var(--ease); box-shadow: var(--shadow-soft); }
.risk-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.risk-card__title { font-size: 14.5px; font-weight: 600; color: var(--text-primary); margin-bottom: 12px; }
.risk-card__meta { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.risk-card__row { margin-bottom: 9px; }
.risk-card__row:last-child { margin-bottom: 0; }
.risk-card__row-label { font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 4px; }
.risk-card__row-value { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }

/* ---------- Capability roadmap cards ---------- */
.capability-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 22px; margin-bottom: 14px; transition: border-color 0.2s var(--ease), transform 0.2s var(--ease); position: relative; z-index: 1; box-shadow: var(--shadow-soft); }
.capability-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.capability-card__header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.capability-card__name { font-size: 15.5px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.005em; }
.capability-card__rows { display: flex; flex-direction: column; gap: 12px; }
.capability-card__row-label { font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-dark); margin-bottom: 4px; }
.capability-card__row-value { font-size: 13.5px; color: var(--text-secondary); line-height: 1.55; }

/* ---------- Founder statement ---------- */
.founder-statement { font-size: 22px; font-weight: 600; line-height: 1.5; letter-spacing: -0.015em; color: var(--text-primary); max-width: 660px; margin: 6px 0 28px; position: relative; z-index: 1; }

/* ---------- Back to top ---------- */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px; border-radius: 50%; background: var(--bg-card); border: 1px solid var(--border-strong); color: var(--text-primary); box-shadow: var(--shadow-lift); font-size: 16px; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transform: translateY(10px) scale(0.92); transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease); z-index: 100; }
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.back-to-top:hover { border-color: var(--accent-border); background: var(--accent-bg); color: var(--accent-dark); }
.back-to-top svg { transition: transform 0.2s var(--ease); }
.back-to-top:hover svg { transform: translateY(-1px); }

/* ---------- Focus states (keyboard accessibility) ---------- */
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent-dark); outline-offset: 2px; border-radius: var(--radius-sm); }

/* ---------- Responsive ---------- */
@media (max-width: 1160px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .risk-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .widget-row { grid-template-columns: 1fr; }
  .qa-row { grid-template-columns: repeat(2, 1fr); }
  .tier-grid { grid-template-columns: 1fr; }
  .section__index { font-size: 120px; }
}

@media (max-width: 1000px) {
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .mobile-bar { display: flex; }

  .sidebar { position: fixed; top: 0; left: 0; z-index: 110; width: var(--sidebar-width); transform: translateX(-100%); transition: transform 0.25s var(--ease); }
  .sidebar.open { transform: translateX(0); }
  .sidebar.collapsed { width: var(--sidebar-width); padding: 32px 22px; }
  .sidebar.collapsed .sidebar__brand-text,
  .sidebar.collapsed .sidebar__footer,
  .sidebar.collapsed .sidebar__group-label,
  .sidebar.collapsed .sidebar__list a span:not(.nav-dot) { opacity: 1; pointer-events: auto; position: static; }
  .sidebar.collapsed .sidebar__footer, .sidebar.collapsed .sidebar__group-label { display: block; }
  .sidebar.collapsed .sidebar__list a { justify-content: flex-start; padding-left: 12px; padding-right: 12px; }
  .sidebar__collapse { display: none; }

  .backdrop.open { display: block; }

  .content { padding: 30px 20px 40px; }

  .section__title { font-size: 27px; }
  .section__index { display: none; }
  .section + .section { padding-top: 60px; }
  .section { padding-bottom: 92px; }

  .kpi-grid, .card-grid, .risk-grid, .qa-row, .tier-grid { grid-template-columns: 1fr; }

  .founder-statement { font-size: 19px; }
}

@media (max-width: 480px) {
  .table th, .table td { padding: 11px 14px; font-size: 12.5px; }
}