/* ============================================================
   BlueLogic × Harsight/HARS vs SlicedHealth — Strategy Guide
   Premium healthcare-finance consulting aesthetic
   Navy / deep blue / slate-gray, high contrast, light, performant
   ============================================================ */

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.82rem);
  --text-sm: clamp(0.84rem, 0.8rem + 0.2vw, 0.94rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --text-lg: clamp(1.1rem, 1rem + 0.4vw, 1.3rem);
  --text-xl: clamp(1.4rem, 1.15rem + 1vw, 2rem);
  --text-2xl: clamp(1.9rem, 1.4rem + 2vw, 2.8rem);

  /* Spacing */
  --space-1: 0.25rem;  --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;     --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;    --space-20: 5rem;   --space-24: 6rem;

  /* Radius */
  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem;
  --radius-xl: 1rem; --radius-full: 9999px;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --font-body: "Inter", "Helvetica Neue", -apple-system, sans-serif;
  --font-display: "Fraunces", "Georgia", serif;
  --content-max: 1080px;
  --sidebar-w: 300px;
}

/* ---- LIGHT THEME (default) ---- */
:root, [data-theme="light"] {
  --navy-900: #0a1f3d;
  --navy-800: #0f2d54;
  --navy-700: #163a6b;
  --navy-600: #1e4d8b;

  --color-bg: #f4f6fa;
  --color-surface: #ffffff;
  --color-surface-2: #fbfcfe;
  --color-surface-offset: #eef2f8;
  --color-surface-inset: #e7edf6;
  --color-border: #d3dcea;
  --color-divider: #e2e8f2;

  --color-text: #0d1b30;
  --color-text-muted: #4a5a72;
  --color-text-faint: #8493a8;
  --color-text-inverse: #f4f7fc;

  --color-primary: #1e4d8b;      /* deep blue accent */
  --color-primary-hover: #163a6b;
  --color-primary-soft: #e5edf8;

  --color-accent: #2f7fb5;       /* mid blue for data */
  --color-teal: #0e7c86;

  /* Severity / status */
  --sev-high-bg: #fbe9ec;   --sev-high-fg: #a8203a;  --sev-high-bd: #eeb9c3;
  --sev-med-bg: #fdf2e0;    --sev-med-fg: #a45c0c;   --sev-med-bd: #f0d6a8;
  --sev-low-bg: #e9f4ec;    --sev-low-fg: #1e6b3a;   --sev-low-bd: #bfe0c9;

  --unverified-bg: #fbeee0; --unverified-fg: #9a4a08; --unverified-bd: #f0cea0;
  --confirmed-bg: #e6f2ea;  --confirmed-fg: #1c6b3d;  --confirmed-bd: #c0e0cb;

  --shadow-sm: 0 1px 2px rgba(13, 27, 48, 0.06);
  --shadow-md: 0 4px 16px rgba(13, 27, 48, 0.08);
  --shadow-lg: 0 16px 44px rgba(13, 27, 48, 0.14);

  color-scheme: light;
}

/* ---- DARK THEME ---- */
[data-theme="dark"] {
  --navy-900: #05101f;
  --navy-800: #0a1c33;
  --navy-700: #102844;
  --navy-600: #1a3c63;

  --color-bg: #070f1c;
  --color-surface: #0e1a2c;
  --color-surface-2: #122036;
  --color-surface-offset: #101d31;
  --color-surface-inset: #16273f;
  --color-border: #23364f;
  --color-divider: #1a2942;

  --color-text: #dde6f3;
  --color-text-muted: #93a4bd;
  --color-text-faint: #61748e;
  --color-text-inverse: #f4f7fc;

  --color-primary: #5b96d6;
  --color-primary-hover: #7aabe0;
  --color-primary-soft: #16273f;

  --color-accent: #56a8d6;
  --color-teal: #3aa5ae;

  --sev-high-bg: #331721;  --sev-high-fg: #f0899e;  --sev-high-bd: #5a2734;
  --sev-med-bg: #322415;   --sev-med-fg: #e6b36a;   --sev-med-bd: #574126;
  --sev-low-bg: #14291c;   --sev-low-fg: #86cf9c;   --sev-low-bd: #285138;

  --unverified-bg: #33230f; --unverified-fg: #f0b877; --unverified-bd: #5c421f;
  --confirmed-bg: #12281b;  --confirmed-fg: #82cf9c;  --confirmed-bd: #24492f;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 44px rgba(0,0,0,0.6);

  color-scheme: dark;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-8);
}
body {
  min-height: 100dvh;
  line-height: 1.62;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
}
img, svg { display: block; max-width: 100%; }
h1,h2,h3,h4 { line-height: 1.18; text-wrap: balance; font-weight: 650; letter-spacing: -0.01em; }
p, li { text-wrap: pretty; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; background: none; border: none; color: inherit; font: inherit; }
table { border-collapse: collapse; width: 100%; }
::selection { background: color-mix(in oklab, var(--color-primary) 25%, transparent); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: var(--radius-sm); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

a, button { transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition); }

/* ============================================================
   LAYOUT
   ============================================================ */
.app { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100dvh; }

/* ---- Sidebar ---- */
.sidebar {
  position: sticky; top: 0; height: 100dvh;
  background: linear-gradient(180deg, var(--navy-900), var(--navy-800));
  color: var(--color-text-inverse);
  display: flex; flex-direction: column;
  border-right: 1px solid rgba(255,255,255,0.06);
  overflow-y: auto;
}
.brand { padding: var(--space-6) var(--space-5) var(--space-5); border-bottom: 1px solid rgba(255,255,255,0.08); }
.brand-logo { display: flex; align-items: center; gap: var(--space-3); }
.brand-logo svg { flex-shrink: 0; }
.brand-title { font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.02em; color: #fff; line-height: 1.3; }
.brand-sub { font-size: var(--text-xs); color: #8fb0d8; margin-top: 2px; letter-spacing: 0.04em; text-transform: uppercase; }
.brand-tag { margin-top: var(--space-4); font-size: var(--text-xs); color: #a9c4e4; line-height: 1.5; }
.brand-tag strong { color: #dbe8f7; font-weight: 600; }

.nav { padding: var(--space-4) var(--space-3) var(--space-6); flex: 1; }
.nav-label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: #6f8db3; padding: var(--space-3) var(--space-3) var(--space-2); }
.nav-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  width: 100%; text-align: left;
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-md);
  color: #c3d5ec; font-size: var(--text-sm); line-height: 1.35;
  border-left: 3px solid transparent;
}
.nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; text-decoration: none; }
.nav-item.active { background: rgba(91,150,214,0.16); color: #fff; border-left-color: var(--color-primary); font-weight: 600; }
.nav-num {
  flex-shrink: 0; width: 1.5rem; height: 1.5rem;
  display: grid; place-items: center;
  font-size: var(--text-xs); font-weight: 700;
  background: rgba(255,255,255,0.08); border-radius: var(--radius-sm);
  color: #9fbde0;
}
.nav-item.active .nav-num { background: var(--color-primary); color: #fff; }

.sidebar-foot { padding: var(--space-4) var(--space-5); border-top: 1px solid rgba(255,255,255,0.08); font-size: var(--text-xs); color: #7f9cc0; }
.sidebar-foot .dt { color: #a9c4e4; }

/* ---- Main ---- */
.main { min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: color-mix(in oklab, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.topbar-left { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.menu-btn { display: none; }
.crumb { font-size: var(--text-xs); color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.crumb b { color: var(--color-text-muted); }
.topbar-actions { display: flex; align-items: center; gap: var(--space-2); }
.icon-btn {
  width: 2.2rem; height: 2.2rem; display: grid; place-items: center;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  color: var(--color-text-muted); background: var(--color-surface);
}
.icon-btn:hover { color: var(--color-text); border-color: var(--color-primary); }

.content { max-width: var(--content-max); margin: 0 auto; padding: var(--space-10) var(--space-6) var(--space-24); }

/* ---- Sections ---- */
.section { display: none; animation: fade .35s ease; }
.section.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(8px);} to {opacity:1; transform:none;} }

.sec-head { margin-bottom: var(--space-8); }
.eyebrow { display:inline-flex; align-items:center; gap: var(--space-2); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-3); }
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); }
.sec-title { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.02em; color: var(--color-text); }
.sec-lede { margin-top: var(--space-4); font-size: var(--text-lg); color: var(--color-text-muted); max-width: 66ch; line-height: 1.55; }

h3.block-title { font-size: var(--text-lg); margin: var(--space-10) 0 var(--space-4); display:flex; align-items:center; gap: var(--space-3); }
h3.block-title::before { content:""; width: 4px; height: 1.1em; background: var(--color-primary); border-radius: 2px; }
h4.sub-title { font-size: var(--text-base); font-weight: 700; margin: var(--space-6) 0 var(--space-3); color: var(--color-text); }

.content p { margin-bottom: var(--space-4); max-width: 74ch; }
.content ul, .content ol { margin: 0 0 var(--space-4) var(--space-5); }
.content li { margin-bottom: var(--space-2); max-width: 72ch; }

/* ============================================================
   COMPONENTS
   ============================================================ */

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.02em;
  padding: 2px 8px; border-radius: var(--radius-full); border: 1px solid transparent;
  white-space: nowrap; vertical-align: middle;
}
.badge-unverified { background: var(--unverified-bg); color: var(--unverified-fg); border-color: var(--unverified-bd); }
.badge-confirmed { background: var(--confirmed-bg); color: var(--confirmed-fg); border-color: var(--confirmed-bd); }
.badge-high { background: var(--sev-high-bg); color: var(--sev-high-fg); border-color: var(--sev-high-bd); }
.badge-med { background: var(--sev-med-bg); color: var(--sev-med-fg); border-color: var(--sev-med-bd); }
.badge-low { background: var(--sev-low-bg); color: var(--sev-low-fg); border-color: var(--sev-low-bd); }
.badge-neutral { background: var(--color-surface-inset); color: var(--color-text-muted); border-color: var(--color-border); }
.badge-blue { background: var(--color-primary-soft); color: var(--color-primary); border-color: color-mix(in oklab, var(--color-primary) 30%, transparent); }
.badge svg { width: 11px; height: 11px; }

/* Callout */
.callout {
  display: flex; gap: var(--space-4);
  padding: var(--space-5) var(--space-5);
  border-radius: var(--radius-lg); border: 1px solid var(--color-border);
  background: var(--color-surface); box-shadow: var(--shadow-sm);
  margin: var(--space-6) 0;
}
.callout-icon { flex-shrink: 0; width: 2.4rem; height: 2.4rem; display: grid; place-items: center; border-radius: var(--radius-md); }
.callout-body { min-width: 0; }
.callout-body h4 { font-size: var(--text-base); margin-bottom: var(--space-2); }
.callout-body p { margin-bottom: 0; font-size: var(--text-sm); color: var(--color-text-muted); }
.callout-body p + p { margin-top: var(--space-2); }
.callout.warn { border-color: var(--unverified-bd); background: var(--unverified-bg); }
.callout.warn .callout-icon { background: color-mix(in oklab, var(--unverified-fg) 15%, transparent); color: var(--unverified-fg); }
.callout.warn h4 { color: var(--unverified-fg); }
.callout.info { border-left: 4px solid var(--color-primary); }
.callout.info .callout-icon { background: var(--color-primary-soft); color: var(--color-primary); }
.callout.critical { border-color: var(--sev-high-bd); background: var(--sev-high-bg); }
.callout.critical .callout-icon { background: color-mix(in oklab, var(--sev-high-fg) 15%, transparent); color: var(--sev-high-fg); }
.callout.critical h4 { color: var(--sev-high-fg); }

/* Cards */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Stat cards */
.stat { display: flex; flex-direction: column; gap: var(--space-1); }
.stat-num { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; color: var(--color-primary); letter-spacing: -0.02em; }
.stat-label { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.4; }
.stat-cite { margin-top: var(--space-1); }

/* Verdict / bottom-line box */
.verdict {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: var(--color-text-inverse); border-radius: var(--radius-xl);
  padding: var(--space-8); box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.verdict::after { content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px; background: radial-gradient(circle, rgba(91,150,214,0.28), transparent 70%); }
.verdict .eyebrow { color: #86b3e6; }
.verdict .eyebrow .dot { background: #86b3e6; }
.verdict h2 { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 600; color:#fff; margin-bottom: var(--space-4); position: relative; }
.verdict p { color: #cadcf2; max-width: 70ch; position: relative; }
.verdict strong { color: #fff; }

/* Comparison table */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); margin: var(--space-4) 0; background: var(--color-surface); }
table.data { font-size: var(--text-sm); }
table.data th, table.data td { text-align: left; padding: var(--space-3) var(--space-4); vertical-align: top; border-bottom: 1px solid var(--color-divider); }
table.data thead th { background: var(--navy-800); color: #eaf1fb; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; position: sticky; top: 0; }
table.data thead th:first-child { border-top-left-radius: var(--radius-lg); }
table.data thead th:last-child { border-top-right-radius: var(--radius-lg); }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:nth-child(even) { background: var(--color-surface-offset); }
table.data td:first-child, table.data th:first-child { font-weight: 600; }
.col-bl { color: var(--color-teal); }
.col-sh { color: var(--color-accent); }
table.data .rowhl { background: var(--color-primary-soft) !important; }

/* Compare two-col cards */
.vs { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); align-items: stretch; }
.vs-card { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); box-shadow: var(--shadow-sm); }
.vs-card .vs-head { padding: var(--space-4) var(--space-5); color: #fff; font-weight: 700; display:flex; align-items:center; justify-content: space-between; gap: var(--space-2); }
.vs-card.a .vs-head { background: linear-gradient(135deg, var(--navy-700), var(--navy-600)); }
.vs-card.b .vs-head { background: linear-gradient(135deg, #0e5b63, #0e7c86); }
.vs-head small { font-weight: 500; opacity: 0.85; font-size: var(--text-xs); }
.vs-body { padding: var(--space-5); }
.vs-body ul { margin-left: var(--space-4); }
.vs-body li { font-size: var(--text-sm); margin-bottom: var(--space-2); color: var(--color-text-muted); }
.vs-body li strong { color: var(--color-text); }

/* Tension map cards (expandable) */
.tension { display: flex; flex-direction: column; gap: var(--space-3); }
.tcard { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); overflow: hidden; box-shadow: var(--shadow-sm); }
.tcard-head {
  width: 100%; display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-4) var(--space-5); text-align: left;
}
.tcard-head:hover { background: var(--color-surface-offset); }
.tcard-id { flex-shrink: 0; font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); color: var(--color-primary); width: 2.5rem; }
.tcard-title { flex: 1; font-weight: 650; font-size: var(--text-base); min-width: 0; }
.tcard-sev { flex-shrink: 0; }
.tcard-chev { flex-shrink: 0; color: var(--color-text-faint); transition: transform var(--transition); }
.tcard[open-state="1"] .tcard-chev { transform: rotate(180deg); }
.tcard-body { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.tcard[open-state="1"] .tcard-body { max-height: 800px; }
.tcard-body-inner { padding: 0 var(--space-5) var(--space-5); border-top: 1px solid var(--color-divider); padding-top: var(--space-4); }
.tcard-body-inner p { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-3); }
.sev-strip { height: 3px; }
.sev-strip.high { background: var(--sev-high-fg); }
.sev-strip.med { background: var(--sev-med-fg); }
.sev-strip.low { background: var(--sev-low-fg); }

/* Partnership diagram */
.diagram { margin: var(--space-6) 0; }
.tri { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); position: relative; }
.party {
  border-radius: var(--radius-lg); padding: var(--space-5); color: #fff;
  box-shadow: var(--shadow-md); position: relative; min-height: 100%;
}
.party.harsight { background: linear-gradient(150deg, var(--navy-800), var(--navy-600)); }
.party.bluelogic { background: linear-gradient(150deg, #0e5b63, #12909c); }
.party.hars { background: linear-gradient(150deg, #3a3f6b, #565da0); }
.party-role { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.08em; opacity: 0.8; margin-bottom: var(--space-1); }
.party-name { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-3); display:flex; align-items:center; gap: var(--space-2); }
.party ul { margin-left: var(--space-4); }
.party li { font-size: var(--text-sm); margin-bottom: var(--space-2); color: rgba(255,255,255,0.9); }
.diagram-note { text-align: center; margin-top: var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); }
.flow-center {
  text-align: center; margin: var(--space-6) auto; max-width: 640px;
  padding: var(--space-4) var(--space-5); border: 1px dashed var(--color-primary);
  border-radius: var(--radius-lg); background: var(--color-primary-soft);
  font-size: var(--text-sm); color: var(--color-text);
}

/* Checklist */
.checklist { display: flex; flex-direction: column; gap: var(--space-3); }
.check-item {
  display: flex; gap: var(--space-4); align-items: flex-start;
  padding: var(--space-4) var(--space-5); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-sm);
}
.check-box {
  flex-shrink: 0; width: 1.4rem; height: 1.4rem; margin-top: 2px;
  border: 2px solid var(--color-border); border-radius: var(--radius-sm);
  display: grid; place-items: center; color: transparent; transition: all var(--transition);
}
.check-item.done .check-box { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.check-item.done .check-txt { text-decoration: line-through; color: var(--color-text-faint); }
.check-main { flex: 1; min-width: 0; }
.check-txt { font-size: var(--text-sm); font-weight: 600; }
.check-desc { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; }
.check-num { font-size: var(--text-xs); font-weight: 700; color: var(--color-primary); }

.kill-box { border: 1px solid var(--sev-high-bd); background: var(--sev-high-bg); border-radius: var(--radius-lg); padding: var(--space-5); margin-top: var(--space-6); }
.kill-box h4 { color: var(--sev-high-fg); display:flex; align-items:center; gap: var(--space-2); margin-bottom: var(--space-3); }

/* Timeline */
.timeline { border-left: 2px solid var(--color-border); margin-left: var(--space-3); padding-left: var(--space-6); }
.tl-item { position: relative; padding-bottom: var(--space-5); }
.tl-item::before { content:""; position: absolute; left: calc(-1 * var(--space-6) - 6px); top: 4px; width: 11px; height: 11px; border-radius: 50%; background: var(--color-surface); border: 2px solid var(--color-primary); }
.tl-item.hot::before { background: var(--sev-high-fg); border-color: var(--sev-high-fg); }
.tl-date { font-size: var(--text-xs); font-weight: 700; color: var(--color-primary); letter-spacing: 0.02em; }
.tl-body { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: 2px; }
.tl-body strong { color: var(--color-text); }

/* Citations */
cite, .cite { font-style: normal; font-size: var(--text-xs); }
.cite a { color: var(--color-primary); font-weight: 500; }
.src { font-size: var(--text-xs); color: var(--color-text-faint); }
.src a { color: var(--color-text-muted); }

/* Pills row */
.pill-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-4) 0; }

/* Key-value list */
.kv { display: grid; grid-template-columns: 180px 1fr; gap: var(--space-2) var(--space-5); }
.kv dt { font-size: var(--text-sm); font-weight: 700; color: var(--color-text); }
.kv dd { font-size: var(--text-sm); color: var(--color-text-muted); }
.kv dd .badge { margin-left: var(--space-2); }

.divider { height: 1px; background: var(--color-divider); margin: var(--space-10) 0; border: none; }

.footnote { font-size: var(--text-xs); color: var(--color-text-faint); border-top: 1px solid var(--color-divider); padding-top: var(--space-4); margin-top: var(--space-10); }

/* Legend */
.legend { display:flex; flex-wrap:wrap; gap: var(--space-4); font-size: var(--text-xs); color: var(--color-text-muted); margin: var(--space-4) 0; align-items:center; }
.legend span { display:inline-flex; align-items:center; gap: var(--space-2); }

/* progress bar in checklist */
.progress { margin: var(--space-4) 0 var(--space-6); }
.progress-track { height: 8px; background: var(--color-surface-inset); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--color-primary), var(--color-teal)); width: 0; transition: width 0.4s ease; }
.progress-label { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
.scrim { display: none; }
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; left: 0; top: 0; z-index: 60; width: min(86vw, 320px);
    transform: translateX(-100%); transition: transform var(--transition);
  }
  .sidebar.open { transform: none; }
  .menu-btn { display: grid; }
  .scrim.show { display: block; position: fixed; inset: 0; background: rgba(5,16,31,0.5); z-index: 55; }
}
@media (max-width: 720px) {
  .grid-2, .grid-3, .grid-4, .vs, .tri { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: var(--space-1); }
  .kv dd { margin-bottom: var(--space-3); }
  .content { padding: var(--space-8) var(--space-4) var(--space-16); }
}

/* ============================================================
   Alignment helpers (JS-rendered markup)
   ============================================================ */
.nav-text { flex: 1; min-width: 0; }
.tstack { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.tcard-head { cursor: pointer; background: transparent; border: none; font: inherit; color: inherit; }
.tcard-sev { flex-shrink: 0; }
.check-text { flex: 1; min-width: 0; font-size: var(--text-sm); line-height: 1.5; }
.check-item.done .check-text { color: var(--color-text-faint); }
.check-item { cursor: pointer; transition: border-color var(--transition), box-shadow var(--transition); }
.check-item:hover { border-color: var(--color-primary); }
.check-item.done { border-color: color-mix(in oklab, var(--color-primary) 40%, var(--color-border)); }
.progress-wrap { margin: var(--space-4) 0 var(--space-6); }
.progress-wrap .progress { height: 10px; background: var(--color-surface-inset); border-radius: var(--radius-full); overflow: hidden; margin: 0 0 var(--space-2); }