/* =====================================================================
   SYMPATHEIA PARTNERS — DESIGN SYSTEM v1.0
   Brand: AI-native partnership consulting
   ===================================================================== */

/* -------- 1. TOKENS -------- */
:root {
  /* Color — primary */
  --ink-navy: #0B1F3A;
  --ink-navy-2: #15315B;
  --signal-indigo: #5B5BFF;
  --signal-indigo-2: #8B6FFF;
  --signal-indigo-soft: rgba(91, 91, 255, 0.08);
  --signal-indigo-edge: rgba(91, 91, 255, 0.22);

  /* Color — accents */
  --aurora-coral: #FF6B47;
  --aurora-coral-soft: rgba(255, 107, 71, 0.10);
  --pulse-mint: #4FB997;
  --pulse-mint-soft: rgba(79, 185, 151, 0.10);
  --premium-gold: #D4AF37;
  --premium-gold-soft: rgba(212, 175, 55, 0.10);
  --alert-red: #E4574C;

  /* Color — surfaces */
  --canvas: #FAFAF7;
  --canvas-warm: #F7F4ED;
  --mist: #F2F4F8;
  --cloud: #FFFFFF;

  /* Color — text */
  --slate-ink: #0A1628;
  --quiet: #4A5568;
  --whisper: #94A3B8;
  --pearl: #F0F4FA;

  /* Color — lines */
  --hairline: rgba(11, 31, 58, 0.08);
  --midline: rgba(11, 31, 58, 0.14);
  --strong-line: rgba(11, 31, 58, 0.22);

  /* Gradients */
  --grad-indigo: linear-gradient(135deg, #5B5BFF 0%, #8B6FFF 100%);
  --grad-navy: linear-gradient(135deg, #0B1F3A 0%, #1F3A6E 100%);
  --grad-mint: linear-gradient(135deg, #4FB997 0%, #6FD0B0 100%);
  --grad-coral: linear-gradient(135deg, #FF6B47 0%, #FF8E6F 100%);
  --grad-gold: linear-gradient(135deg, #D4AF37 0%, #E8C765 100%);

  /* Radius */
  --r-pill: 999px;
  --r-soft: 12px;
  --r-med: 18px;
  --r-lg: 28px;

  /* Elevation */
  --elev-1: 0 1px 2px rgba(11,31,58,0.04), 0 4px 12px rgba(11,31,58,0.04);
  --elev-2: 0 8px 24px rgba(11,31,58,0.08), 0 2px 6px rgba(11,31,58,0.06);
  --elev-3: 0 24px 64px rgba(11,31,58,0.16);

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 160ms;
  --t-med: 240ms;
  --t-slow: 480ms;

  /* Layout */
  --container: 1240px;
}

/* -------- 2. RESET -------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
html { overflow-x: clip; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
strong { font-weight: 600; color: var(--slate-ink); }

/* -------- 3. TYPOGRAPHY -------- */
.font-serif { font-family: 'Instrument Serif', Georgia, serif; font-weight: 400; }
.font-sans { font-family: 'Inter', system-ui, sans-serif; }

h1, h2, h3, h4, h5 { color: var(--slate-ink); letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: 2.75rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.375rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 1.05rem; font-weight: 600; line-height: 1.35; }

p { color: var(--quiet); line-height: 1.7; }
.lead { font-size: 1.125rem; color: var(--quiet); line-height: 1.65; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--signal-indigo);
}
.eyebrow i { font-size: 0.85rem; }
.eyebrow.mint { color: var(--pulse-mint); }
.eyebrow.coral { color: var(--aurora-coral); }
.eyebrow.gold { color: var(--premium-gold); }
.eyebrow.navy { color: var(--ink-navy); }

/* -------- 4. LAYOUT -------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
section { padding: 6rem 0; }
.section-tight { padding: 4rem 0; }
.section-narrow { max-width: 880px; margin: 0 auto; }

.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2-3 { grid-template-columns: 2fr 3fr; }
.grid-3-2 { grid-template-columns: 3fr 2fr; }

.section-head { max-width: 760px; margin-bottom: 3rem; }
.section-head h2 { margin: 0.75rem 0 1rem; }
.section-head p { font-size: 1.0625rem; }

/* -------- 5. NAVIGATION (Bain-style mega menu) -------- */
.bain-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.96);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hairline);
}
.bain-nav-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex; align-items: center; gap: 1.5rem;
}
/* Wrapper for mega panels — positions them flush against the fixed nav, spanning viewport */
.bain-mega-wrap {
  position: absolute; top: 100%; left: 0; right: 0;
  pointer-events: none;
}
.bain-mega-wrap .bain-mega { pointer-events: none; }
.bain-mega-wrap .bain-mega.open { pointer-events: auto; }
.bain-brand-block { display: flex; flex-direction: column; align-items: flex-start; flex-shrink: 0; gap: 1px; }
.bain-brand {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.5rem; color: var(--ink-navy);
  letter-spacing: -0.01em; flex-shrink: 0;
}
/* Subtle clickable quote sub-line under the brand wordmark — opens the etymology modal.
   Some Chromium builds lock <button> color via -webkit-text-fill-color, so we set both explicitly. */
.brand-quote {
  -webkit-appearance: none;
  appearance: none;
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: 0.74rem;
  color: var(--whisper);
  -webkit-text-fill-color: var(--whisper);
  background: transparent;
  border: none;
  padding: 0 0 0 45px;
  margin: -2px 0 0 0;
  cursor: pointer;
  text-align: left;
  line-height: 1.2;
  letter-spacing: 0.005em;
  transition: color var(--t-fast) var(--ease), -webkit-text-fill-color var(--t-fast) var(--ease);
  max-width: 440px;
}
/* Attribution prefix (Marcus Aurelius:) sits upright before the italicized quote */
.brand-quote .brand-quote-attr {
  font-style: normal;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-right: 0.35em;
  opacity: 0.85;
}
.brand-quote .brand-quote-text::before { content: '\201C'; margin-right: 0.05em; opacity: 0.7; }
.brand-quote .brand-quote-text::after  { content: '\201D'; margin-left: 0.05em; opacity: 0.7; }
.brand-quote:hover,
.brand-quote:focus-visible {
  color: var(--signal-indigo);
  -webkit-text-fill-color: var(--signal-indigo);
  outline: none;
}
.brand-quote:focus-visible { text-decoration: underline; text-underline-offset: 2px; }
.bain-brand .mark { width: 34px; height: 34px; flex-shrink: 0; }
.bain-brand .word { font-weight: 400; }
.bain-brand .word em { font-style: italic; color: var(--signal-indigo); }
.bain-primary {
  list-style: none; display: flex; align-items: center; gap: 0.15rem;
  margin: 0 0 0 1.5rem;
}
.bain-item { position: relative; }
.bain-trigger,
.bain-link {
  position: relative;
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.7rem 0.95rem; border-radius: 4px;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem; font-weight: 500; color: var(--slate-ink);
  background: transparent; border: none;
  cursor: pointer; letter-spacing: -0.005em;
  transition: color var(--t-fast) var(--ease);
}
.bain-trigger i {
  font-size: 0.6rem; opacity: 0.45;
  transition: transform var(--t-fast) var(--ease);
}
.bain-trigger:hover,
.bain-link:hover { color: var(--ink-navy); }
.bain-item.hover .bain-trigger,
.bain-item.hover .bain-link { color: var(--ink-navy); }
.bain-item.hover .bain-trigger i { transform: rotate(180deg); opacity: 0.85; }
.bain-item.active .bain-trigger,
.bain-item.active .bain-link { color: var(--ink-navy); }
.bain-item.active .bain-trigger::after,
.bain-item.active .bain-link::after {
  content: '';
  position: absolute; left: 0.95rem; right: 0.95rem; bottom: 0.4rem;
  height: 1.5px; background: var(--ink-navy);
}
.bain-cta-row { display: flex; align-items: center; gap: 0.75rem; margin-left: auto; flex-shrink: 0; }
.bain-cta {
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.7rem 1.2rem; border-radius: 4px;
  font-size: 0.88rem; font-weight: 600; letter-spacing: -0.005em;
  color: var(--cloud); background: var(--ink-navy);
  border: 1px solid var(--ink-navy);
  transition: all var(--t-fast) var(--ease);
}
.bain-cta:hover { background: var(--signal-indigo); border-color: var(--signal-indigo); }
.bain-mobile-toggle {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 4px;
  background: transparent; color: var(--ink-navy); border: none;
}

/* ===== MEGA MENU PANELS (full viewport width, Bain-style) ===== */
.bain-mega {
  position: absolute; top: 0; left: 0; right: 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  border-top: 1px solid var(--hairline);
  box-shadow: 0 14px 32px rgba(11,31,58,0.06);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
  z-index: 49;
}
.bain-mega.open {
  opacity: 1; transform: translateY(0);
}
.bain-mega-inner {
  max-width: var(--container); margin: 0 auto;
  padding: 3rem 1.5rem 3.25rem;
  display: grid; grid-template-columns: 1fr 2.4fr; gap: 4rem;
  align-items: flex-start;
}
.bain-mega-head .mega-eyebrow {
  display: block; font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--whisper); margin-bottom: 1rem;
}
.bain-mega-head h3 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400; font-size: 1.85rem; line-height: 1.18;
  color: var(--ink-navy); letter-spacing: -0.015em;
  max-width: 340px;
}
.bain-mega-head .mega-aside {
  margin-top: 1.5rem; font-size: 0.92rem; color: var(--quiet); line-height: 1.6;
  max-width: 320px;
}
.bain-mega-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.35rem 1.5rem;
}
.mega-link {
  display: flex; flex-direction: column; gap: 0.3rem;
  padding: 1rem 1.15rem; border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all var(--t-fast) var(--ease);
  text-decoration: none;
}
.mega-link:hover {
  background: var(--cloud);
  border-left-color: var(--signal-indigo);
}
.mega-link-num {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 0.92rem; color: var(--whisper); margin-bottom: 0.1rem;
}
.mega-link-title {
  font-size: 1rem; font-weight: 600; color: var(--ink-navy);
  letter-spacing: -0.005em;
}
.mega-link-desc {
  font-size: 0.85rem; color: var(--quiet); line-height: 1.5;
}
.mega-link.mega-feature {
  grid-column: 1 / -1;
  background: var(--ink-navy);
  border-left: 2px solid var(--signal-indigo);
}
.mega-link.mega-feature .mega-link-title { color: #fff; }
.mega-link.mega-feature .mega-link-desc { color: rgba(240,244,250,0.7); }
.mega-link.mega-feature:hover { background: var(--ink-navy-2); }

/* ===== BACKWARD COMPAT: keep .nav class working for unrefactored pages ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hairline);
}
.nav-inner {
  max-width: var(--container); margin: 0 auto; padding: 0.875rem 1.5rem;
  display: flex; align-items: center; gap: 2.5rem;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.5rem; color: var(--ink-navy); letter-spacing: -0.01em;
}
.nav-brand .mark { width: 34px; height: 34px; flex-shrink: 0; }
.nav-brand .word { font-weight: 400; }
.nav-brand .word em { font-style: italic; color: var(--signal-indigo); }
.nav-links { display: flex; align-items: center; gap: 0.25rem; margin-left: 1.5rem; flex: 1; }
.nav-links a {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.5rem 0.875rem; border-radius: var(--r-soft);
  font-size: 0.875rem; font-weight: 500; color: var(--quiet);
  transition: all var(--t-fast) var(--ease);
}
.nav-links a:hover { color: var(--ink-navy); background: var(--mist); }
.nav-links a.active { color: var(--signal-indigo); background: var(--signal-indigo-soft); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.6rem 1.1rem; border-radius: var(--r-soft);
  font-size: 0.875rem; font-weight: 600; color: #fff;
  background: var(--grad-indigo);
  box-shadow: 0 4px 14px rgba(91,91,255,0.28);
  transition: all var(--t-fast) var(--ease);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(91,91,255,0.40); }
.nav-mobile-toggle { display: none; }

/* -------- 6. BUTTONS -------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.5rem; border-radius: var(--r-soft);
  font-size: 0.95rem; font-weight: 600; letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: all var(--t-fast) var(--ease);
}
.btn-primary {
  color: #fff; background: var(--grad-indigo);
  box-shadow: 0 4px 16px rgba(91,91,255,0.30);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(91,91,255,0.42);
}
.btn-secondary {
  color: var(--ink-navy); background: var(--cloud);
  border-color: var(--hairline);
}
.btn-secondary:hover { background: var(--mist); border-color: var(--midline); }
.btn-ghost {
  color: var(--ink-navy); background: transparent; padding: 0.85rem 0.25rem;
}
.btn-ghost:hover { color: var(--signal-indigo); }
.btn-ghost::after {
  content: '\2192'; transition: transform var(--t-fast) var(--ease);
}
.btn-ghost:hover::after { transform: translateX(4px); }
.btn-dark {
  color: var(--pearl); background: var(--ink-navy);
}
.btn-dark:hover { background: var(--ink-navy-2); }

/* -------- 7. BADGES & EYEBROWS -------- */
.badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.28rem 0.75rem; border-radius: var(--r-pill);
  font-size: 0.72rem; font-weight: 600;
}
.badge.indigo { background: var(--signal-indigo-soft); color: var(--signal-indigo); }
.badge.coral { background: var(--aurora-coral-soft); color: var(--aurora-coral); }
.badge.mint { background: var(--pulse-mint-soft); color: var(--pulse-mint); }
.badge.gold { background: var(--premium-gold-soft); color: #a8841c; }
.badge.navy { background: rgba(11,31,58,0.06); color: var(--ink-navy); }
.badge.outline {
  background: transparent; border: 1px solid currentColor;
}

/* -------- 8. CARDS -------- */
.card {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  padding: 1.75rem;
  transition: all var(--t-med) var(--ease);
  display: flex; flex-direction: column;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--midline);
  box-shadow: var(--elev-2);
}
.card.flat { box-shadow: none; border-radius: var(--r-soft); }
.card.dark { background: var(--ink-navy); color: var(--pearl); border-color: rgba(255,255,255,0.08); }
.card.dark h3, .card.dark h4 { color: var(--pearl); }
.card.dark p { color: rgba(240,244,250,0.72); }

.icon-box {
  width: 44px; height: 44px; border-radius: var(--r-soft);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
  margin-bottom: 1rem;
}
.icon-box.indigo { background: var(--signal-indigo-soft); color: var(--signal-indigo); }
.icon-box.coral { background: var(--aurora-coral-soft); color: var(--aurora-coral); }
.icon-box.mint { background: var(--pulse-mint-soft); color: var(--pulse-mint); }
.icon-box.gold { background: var(--premium-gold-soft); color: #a8841c; }
.icon-box.navy { background: rgba(11,31,58,0.06); color: var(--ink-navy); }
.icon-box.gradient-indigo { background: var(--grad-indigo); color: #fff; }
.icon-box.gradient-coral { background: var(--grad-coral); color: #fff; }

.card h3 { margin-bottom: 0.5rem; }
.card .desc { font-size: 0.95rem; color: var(--quiet); flex: 1; }
.card .impact {
  margin-top: 1.25rem; padding: 0.85rem 1rem;
  background: var(--mist); border-radius: var(--r-soft);
  border-left: 3px solid var(--pulse-mint);
  font-size: 0.85rem; color: var(--quiet);
}
.card .impact strong { color: var(--ink-navy); }
.card .impact-label {
  display: block; font-size: 0.68rem; font-weight: 600;
  color: var(--pulse-mint); text-transform: uppercase;
  letter-spacing: 0.1em; margin-bottom: 0.25rem;
}

/* -------- 9. HERO -------- */
.hero {
  position: relative; overflow: hidden;
  padding: 9rem 0 5rem;
  background: var(--canvas);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 12% 18%, rgba(91,91,255,0.10) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 25%, rgba(255,107,71,0.08) 0%, transparent 55%),
    radial-gradient(ellipse 80% 40% at 50% 90%, rgba(79,185,151,0.06) 0%, transparent 50%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 4rem; align-items: center; }
.hero-headline {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400; font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  line-height: 1.02; letter-spacing: -0.02em;
  color: var(--ink-navy); margin: 1.5rem 0 1.5rem;
}
.hero-headline em { font-style: italic; color: var(--signal-indigo); }
.hero-headline .underline {
  position: relative; display: inline-block; padding-bottom: 4px;
}
.hero-headline .underline::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0;
  height: 8px; background: var(--aurora-coral); opacity: 0.45;
  z-index: -1; border-radius: 2px;
}
.hero-sub {
  font-size: 1.1875rem; color: var(--quiet); max-width: 560px;
  line-height: 1.65; margin-bottom: 2rem;
}
.hero-ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 2rem; }
.hero-trust { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; font-size: 0.82rem; color: var(--whisper); }
.hero-trust strong { color: var(--ink-navy); font-weight: 600; }
.hero-visual { position: relative; }

/* -------- 10. STAT STRIP -------- */
.stat-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; border: 1px solid var(--hairline);
  border-radius: var(--r-med); background: var(--cloud);
  overflow: hidden;
}
.stat-strip > .stat {
  padding: 1.75rem 1.5rem; border-right: 1px solid var(--hairline);
  text-align: left;
}
.stat-strip > .stat:last-child { border-right: none; }
.stat .val {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 2.5rem; font-weight: 400; color: var(--ink-navy);
  line-height: 1; letter-spacing: -0.02em;
}
.stat .val em { font-style: italic; color: var(--signal-indigo); }
.stat .lbl {
  display: block; margin-top: 0.5rem; font-size: 0.85rem;
  color: var(--quiet); line-height: 1.4;
}

/* -------- 11. AGENT MOSAIC (HERO VISUAL) -------- */
.mosaic {
  position: relative; padding: 1rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem;
}
.mosaic-tile {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-soft);
  padding: 0.85rem;
  font-size: 0.78rem; color: var(--slate-ink); font-weight: 600;
  display: flex; align-items: center; gap: 0.5rem;
  box-shadow: var(--elev-1);
  transition: transform var(--t-med) var(--ease);
}
.mosaic-tile:nth-child(3n+1) { transform: translateY(8px); }
.mosaic-tile:nth-child(3n+2) { transform: translateY(-4px); }
.mosaic-tile:hover { transform: translateY(-2px); box-shadow: var(--elev-2); }
.mosaic-tile i {
  width: 24px; height: 24px; border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.8rem; flex-shrink: 0;
}
.mt-indigo i { background: var(--signal-indigo-soft); color: var(--signal-indigo); }
.mt-coral i { background: var(--aurora-coral-soft); color: var(--aurora-coral); }
.mt-mint i { background: var(--pulse-mint-soft); color: var(--pulse-mint); }
.mt-gold i { background: var(--premium-gold-soft); color: #a8841c; }
.mt-navy i { background: rgba(11,31,58,0.06); color: var(--ink-navy); }

/* -------- 12. PILLAR ROW (capabilities) -------- */
.pillar {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  padding: 2rem;
  transition: all var(--t-med) var(--ease);
  position: relative;
  overflow: hidden;
}
.pillar::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-indigo); opacity: 0;
  transition: opacity var(--t-med) var(--ease);
}
.pillar:hover::before { opacity: 1; }
.pillar:hover { transform: translateY(-4px); box-shadow: var(--elev-2); }
.pillar h3 { margin: 1rem 0 0.5rem; }
.pillar .pill-meta { font-size: 0.72rem; color: var(--whisper); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; }
.pillar p { font-size: 0.95rem; }
.pillar .pill-list { list-style: none; margin-top: 1.25rem; }
.pillar .pill-list li {
  display: flex; align-items: flex-start; gap: 0.5rem;
  padding: 0.4rem 0; font-size: 0.875rem; color: var(--quiet);
}
.pillar .pill-list li i { color: var(--signal-indigo); margin-top: 0.2rem; font-size: 0.85rem; }

/* -------- 13. LIFECYCLE / PROCESS RIBBON -------- */
.ribbon {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1rem; position: relative;
}
.ribbon-step {
  position: relative;
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  padding: 1.5rem;
}
.ribbon-step .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--ink-navy); color: var(--pearl);
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.1rem; margin-bottom: 1rem;
}
.ribbon-step h4 { margin-bottom: 0.4rem; }
.ribbon-step p { font-size: 0.875rem; }
.ribbon-step .step-meta {
  margin-top: 1rem; padding-top: 1rem; border-top: 1px dashed var(--hairline);
  font-size: 0.78rem; color: var(--whisper);
}

/* -------- 14. STAKEHOLDER (Ecosystem) TABLE -------- */
.stakeholder-table {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  overflow: hidden;
}
.stakeholder-row {
  display: grid; grid-template-columns: 1.4fr 1.8fr 2fr 1.4fr;
  gap: 0; align-items: stretch;
  border-bottom: 1px solid var(--hairline);
}
.stakeholder-row:last-child { border-bottom: none; }
.stakeholder-row.head {
  background: var(--mist); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600;
  color: var(--whisper);
}
.stakeholder-row > div {
  padding: 1.25rem 1.5rem;
}
.stakeholder-role { display: flex; flex-direction: column; gap: 0.25rem; }
.stakeholder-role strong { font-family: 'Instrument Serif', Georgia, serif; font-size: 1.2rem; font-weight: 400; color: var(--ink-navy); }
.stakeholder-role span { font-size: 0.82rem; color: var(--whisper); }
.stakeholder-outcome { font-size: 0.95rem; color: var(--slate-ink); }
.stakeholder-agents {
  display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: flex-start;
  font-size: 0.78rem;
}
.stakeholder-kpi {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.0625rem; color: var(--ink-navy); line-height: 1.35;
}
.stakeholder-kpi em { color: var(--signal-indigo); font-style: italic; }

/* -------- 15. CALLOUT (full-width feature panel) -------- */
.callout {
  background: var(--grad-navy);
  color: var(--pearl);
  border-radius: var(--r-lg);
  padding: 4rem 3rem;
  position: relative; overflow: hidden;
}
.callout::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 50% 60% at 90% 10%, rgba(91,91,255,0.32) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 5% 90%, rgba(255,107,71,0.18) 0%, transparent 60%);
}
.callout > * { position: relative; }
.callout h2 {
  color: #fff;
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400; font-size: clamp(2rem, 3.5vw, 3rem);
  letter-spacing: -0.02em; line-height: 1.1;
}
.callout h2 em { font-style: italic; color: #B8B8FF; }
.callout p { color: rgba(240,244,250,0.78); font-size: 1.0625rem; max-width: 640px; margin: 1rem 0 1.75rem; }
.callout .btn-primary {
  background: #fff; color: var(--ink-navy);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}
.callout .btn-primary:hover { transform: translateY(-2px); }
.callout .btn-secondary {
  background: transparent; color: #fff; border-color: rgba(255,255,255,0.28);
}
.callout .btn-secondary:hover { background: rgba(255,255,255,0.08); }

/* -------- 16. FOOTER -------- */
footer {
  background: var(--ink-navy);
  color: var(--pearl);
  padding: 5rem 0 2rem;
}
.footer-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 1.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 2.5rem; padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .nav-brand { color: var(--pearl); font-size: 1.5rem; }
.footer-brand .nav-brand .word em { color: var(--signal-indigo-2); }
.footer-brand p {
  color: rgba(240,244,250,0.6); font-size: 0.875rem;
  max-width: 320px; margin-top: 1rem; line-height: 1.6;
}
.footer-col h5 {
  color: var(--pearl); font-size: 0.78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block; color: rgba(240,244,250,0.6);
  font-size: 0.875rem; padding: 0.35rem 0;
  transition: color var(--t-fast) var(--ease);
}
.footer-col a:hover { color: var(--pearl); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 1.5rem; font-size: 0.78rem; color: rgba(240,244,250,0.4);
}
.footer-bottom em { font-style: italic; color: rgba(240,244,250,0.7); }

/* -------- 17. LOGOMARK (SVG style) -------- */
.sympatheia-mark {
  width: 100%; height: 100%; display: block;
}
.sympatheia-mark circle.node { fill: var(--ink-navy); }
.sympatheia-mark circle.center { fill: var(--signal-indigo); }
.sympatheia-mark line, .sympatheia-mark path { stroke: var(--ink-navy); stroke-width: 1.5; fill: none; }
/* AI letters embedded in the mark's center node. Cream against indigo for subtle reveal at larger sizes. */
.sympatheia-mark .mark-ai { fill: var(--canvas); letter-spacing: -0.08em; }

/* Subtle AI accent inside the Sympatheia wordmark: tints the 'a' and 'i'
   that visually spell 'AI' inside the word. Inherits parent font; only color shifts. */
.ai-accent { color: var(--signal-indigo); opacity: 0.78; }
/* On dark surfaces (footer, callout, demo banner) lift toward the brighter indigo */
.bg-navy .ai-accent,
footer .ai-accent,
.callout .ai-accent,
#sympatheia-banner .ai-accent { color: var(--signal-indigo-2); opacity: 0.9; }

/* -------- 18. UTILITY -------- */
.text-center { text-align: center; }
.text-mint { color: var(--pulse-mint); }
.text-coral { color: var(--aurora-coral); }
.text-indigo { color: var(--signal-indigo); }
.text-quiet { color: var(--quiet); }
.text-navy { color: var(--ink-navy); }
.bg-mist { background: var(--mist); }
.bg-navy { background: var(--ink-navy); color: var(--pearl); }
.bg-canvas-warm { background: var(--canvas-warm); }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; } .mt-5 { margin-top: 2.5rem; }
.mt-6 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; } .mb-5 { margin-bottom: 2.5rem; }

/* -------- 19. CASE/INSIGHT CARDS -------- */
.case-card {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: all var(--t-med) var(--ease);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--elev-2); border-color: var(--midline); }
.case-card .case-hero {
  height: 200px; position: relative;
  background: var(--grad-navy);
  display: flex; align-items: flex-end; padding: 1.25rem;
  overflow: hidden;
}
.case-card .case-hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(91,91,255,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(255,107,71,0.25) 0%, transparent 60%);
}
.case-card .case-hero .case-vertical {
  position: relative; color: rgba(255,255,255,0.7); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.12em; font-weight: 600;
}
.case-card .case-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.case-card h3 { margin-bottom: 0.5rem; }
.case-card .case-result {
  margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--hairline);
  display: flex; align-items: center; gap: 1rem;
}
.case-card .case-result strong {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.5rem; font-weight: 400; color: var(--signal-indigo);
}
.case-card .case-result span { font-size: 0.8rem; color: var(--whisper); }

/* -------- 20. FORMS -------- */
.field { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.field label {
  font-size: 0.78rem; font-weight: 600; color: var(--ink-navy);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.field input, .field textarea, .field select {
  padding: 0.85rem 1rem; border: 1px solid var(--hairline);
  border-radius: var(--r-soft); background: var(--cloud);
  color: var(--slate-ink); font-size: 0.95rem;
  transition: all var(--t-fast) var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--signal-indigo);
  box-shadow: 0 0 0 3px var(--signal-indigo-soft);
}
.field textarea { min-height: 120px; resize: vertical; font-family: inherit; }
.field .hint { font-size: 0.78rem; color: var(--whisper); }

/* -------- 21. PILLS / TAG FILTER -------- */
.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag-filter {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.95rem; border-radius: var(--r-pill);
  font-size: 0.82rem; font-weight: 500;
  background: var(--cloud); border: 1px solid var(--hairline);
  color: var(--quiet);
  transition: all var(--t-fast) var(--ease);
  cursor: pointer;
}
.tag-filter:hover { border-color: var(--midline); color: var(--ink-navy); }
.tag-filter.active {
  background: var(--ink-navy); color: var(--pearl); border-color: var(--ink-navy);
}
.tag-filter .count { opacity: 0.6; font-size: 0.72rem; }

/* -------- 22. AGENT CARD (specific) -------- */
.agent-card {
  background: var(--cloud);
  border: 1px solid var(--hairline);
  border-radius: var(--r-med);
  padding: 1.5rem;
  transition: all var(--t-med) var(--ease);
  display: flex; flex-direction: column;
  position: relative;
}
.agent-card:hover {
  transform: translateY(-3px); box-shadow: var(--elev-2);
  border-color: var(--signal-indigo-edge);
}
.agent-head { display: flex; align-items: flex-start; gap: 0.85rem; margin-bottom: 1rem; }
.agent-head .icon-box { margin: 0; width: 38px; height: 38px; font-size: 0.95rem; }
.agent-head .agent-title { flex: 1; }
.agent-head h4 { margin-bottom: 0.25rem; line-height: 1.3; }
.agent-head .agent-pillar { font-size: 0.7rem; font-weight: 600; color: var(--whisper); text-transform: uppercase; letter-spacing: 0.08em; }
.agent-card .agent-desc { font-size: 0.875rem; color: var(--quiet); flex: 1; line-height: 1.55; }
.agent-card .agent-stakeholder {
  margin-top: 1rem; font-size: 0.78rem; color: var(--whisper);
  display: flex; align-items: center; gap: 0.4rem;
}
.agent-card .agent-stakeholder strong { color: var(--ink-navy); font-weight: 600; }
.agent-card .agent-metric {
  margin-top: 0.85rem;
  padding: 0.75rem 0.85rem;
  background: var(--mist);
  border-radius: var(--r-soft);
  border-left: 3px solid var(--pulse-mint);
}
.agent-card .agent-metric .m-label {
  font-size: 0.62rem; font-weight: 600;
  color: var(--pulse-mint); text-transform: uppercase;
  letter-spacing: 0.1em; margin-bottom: 0.2rem;
}
.agent-card .agent-metric .m-text {
  font-size: 0.82rem; color: var(--ink-navy); line-height: 1.45;
}

/* -------- 23. RESPONSIVE -------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stakeholder-row { grid-template-columns: 1fr; }
  .stakeholder-row > div { padding: 1rem 1.5rem; border-bottom: 1px dashed var(--hairline); }
  .stakeholder-row > div:last-child { border-bottom: none; }
  .stakeholder-row.head { display: none; }
  .ribbon { grid-template-columns: repeat(2, 1fr); }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-strip > .stat:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  /* Bain nav mobile collapse */
  .bain-primary { display: none; }
  .bain-mobile-toggle { display: inline-flex; }
  .bain-nav.mobile-open .bain-primary {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 1rem 1.5rem; margin: 0; gap: 0.25rem;
    box-shadow: 0 12px 28px rgba(11,31,58,0.06);
  }
  .bain-nav.mobile-open .bain-trigger,
  .bain-nav.mobile-open .bain-link {
    width: 100%; justify-content: space-between;
    padding: 0.9rem 0.5rem; border-bottom: 1px solid var(--hairline);
    border-radius: 0;
  }
  .bain-mega { display: none; }
}
@media (max-width: 720px) {
  section { padding: 4rem 0; }
  h1 { font-size: 2.25rem; } h2 { font-size: 1.625rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .ribbon { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr; }
  .stat-strip > .stat { border-right: none; border-bottom: 1px solid var(--hairline); }
  .stat-strip > .stat:last-child { border-bottom: none; }
  .nav-links { display: none; }
  .nav-mobile-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: var(--r-soft);
    background: var(--mist); color: var(--ink-navy); margin-left: auto;
  }
  /* Bain nav at small mobile: tighten padding, hide the CTA button so the hamburger fits */
  .bain-nav-inner { padding: 0.85rem 1rem; gap: 0.75rem; }
  .bain-brand { font-size: 1.25rem; }
  .bain-brand .mark { width: 28px; height: 28px; }
  .bain-cta { display: none; }
  .brand-quote { display: none; }
  .bain-cta-row { gap: 0.5rem; }
  .bain-mobile-toggle {
    background: var(--mist);
    border-radius: var(--r-soft);
  }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .callout { padding: 2.5rem 1.5rem; }
  .hero { padding: 7rem 0 4rem; }
  /* When the mobile menu is open, surface the CTA as a full-width link inside the panel */
  .bain-nav.mobile-open .bain-cta {
    display: inline-flex; width: 100%; justify-content: center;
    margin-top: 0.5rem;
  }
}

/* -------- 23b. ETYMOLOGY MODAL -------- */
.etym-modal {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
  animation: etymFade var(--t-med) var(--ease);
}
.etym-modal[hidden] { display: none; }
.etym-backdrop {
  position: absolute; inset: 0;
  background: rgba(11, 31, 58, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.etym-card {
  position: relative;
  background: var(--cloud);
  border-radius: var(--r-lg);
  box-shadow: var(--elev-3);
  max-width: 580px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  padding: 2.75rem 2.25rem 2.25rem;
  animation: etymPop var(--t-med) var(--ease);
}
.etym-close {
  position: absolute; top: 0.85rem; right: 0.85rem;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--mist); color: var(--ink-navy);
  border: none; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.95rem;
  transition: all var(--t-fast) var(--ease);
  z-index: 1;
}
.etym-close:hover { background: var(--ink-navy); color: var(--pearl); }
.etym-card h2 { font-family: 'Instrument Serif', Georgia, serif; font-weight: 400; font-size: 2.25rem; letter-spacing: -0.02em; }
.etym-card h2 em { color: var(--signal-indigo); }
.etym-greek {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.75rem; font-style: italic;
  color: var(--quiet);
  letter-spacing: -0.01em;
  margin: 0.25rem 0 0.25rem;
}
.etym-pron {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--whisper); font-weight: 600;
  margin-bottom: 1.5rem;
}
.etym-body {
  font-size: 1.0625rem; color: var(--slate-ink);
  line-height: 1.7; margin-bottom: 1.1rem;
}
.etym-bridge {
  font-size: 1rem; color: var(--quiet);
  line-height: 1.7; margin-bottom: 1.5rem;
}
.etym-quote {
  border-left: 3px solid var(--signal-indigo);
  padding: 0.35rem 0 0.35rem 1.25rem;
  margin: 0;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.25rem; font-style: italic;
  color: var(--ink-navy); line-height: 1.4;
}
.etym-attribution {
  display: block;
  font-family: 'Inter', system-ui, sans-serif;
  font-style: normal;
  font-size: 0.72rem; color: var(--whisper);
  text-transform: uppercase; letter-spacing: 0.14em;
  margin-top: 0.65rem; font-weight: 600;
}
@keyframes etymFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes etymPop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (max-width: 720px) {
  .etym-card { padding: 2.25rem 1.5rem 1.75rem; }
  .etym-card h2 { font-size: 1.85rem; }
  .etym-greek { font-size: 1.5rem; }
  .etym-body { font-size: 1rem; }
  .etym-quote { font-size: 1.1rem; }
}

/* -------- 24. ANIMATIONS -------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0; animation: fadeUp var(--t-slow) var(--ease) forwards;
}
.reveal-1 { animation-delay: 80ms; }
.reveal-2 { animation-delay: 160ms; }
.reveal-3 { animation-delay: 240ms; }
.reveal-4 { animation-delay: 320ms; }

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}
.pulse-dot {
  display: inline-block; width: 8px; height: 8px;
  background: var(--pulse-mint); border-radius: 50%;
  animation: pulseDot 1.8s ease-in-out infinite;
}

/* -------- 25. PRINT -------- */
@media print {
  .nav, footer, .nav-cta { display: none; }
  body { background: white; }
  .card { box-shadow: none; border: 1px solid #ddd; }
}

/* -------- 26. REDUCED MOTION -------- */
/* Respect user preference and drop GPU/CPU load on low-end devices */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}