:root {
  /* Surface */
  --canvas:          #ffffff;
  --surface-soft:    #fafafa;
  --surface-dark:    #171717;

  /* Ink */
  --ink:             #000000;
  --ink-deep:        #090909;
  --charcoal:        #525252;
  --body:            #737373;
  --mute:            #a3a3a3;
  --on-dark:         #ffffff;
  --on-dark-mute:    rgba(255,255,255,0.7);
  --on-dark-faint:   rgba(255,255,255,0.4);

  /* Lines */
  --hairline:        #e5e5e5;
  --hairline-strong: #d4d4d4;
  --hairline-on-dark: rgba(255,255,255,0.1);

  /* Focus */
  --focus-ring:      rgba(59,130,246,0.5);

  /* Type stacks */
  --f-display: 'SF Pro Rounded', 'Nunito', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --f-body:    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --f-code:    ui-monospace, 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Radii */
  --r-full: 9999px;
  --r-lg:   12px;
  --r-sm:   6px;

  /* Spacing */
  --s-xxs: 2px;
  --s-xs:  4px;
  --s-sm:  8px;
  --s-md:  12px;
  --s-lg:  16px;
  --s-xl:  24px;
  --s-xxl: 32px;
  --s-section: 88px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }

body {
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--canvas);
  font-weight: 400;
  overflow-x: hidden;
}

/* ── Layout ─────────────────────────────────────────────────────────── */
.container       { max-width: 720px; margin: 0 auto; padding: 0 24px; }
.container-wide  { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ── Focus ──────────────────────────────────────────────────────────── */
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* ── Nav ────────────────────────────────────────────────────────────── */
nav.primary {
  padding-top: calc(10px + env(safe-area-inset-top, 0px));
  padding-bottom: 10px;
  background: rgba(255,255,255,0.85);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--hairline);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  transition: transform 0.28s ease;
  will-change: transform;
}
nav.primary.nav-hidden { transform: translateY(-115%); }
nav.primary .container-wide { display: flex; align-items: center; gap: 18px; width: 100%; }
.nav-logo { display: inline-flex; align-items: center; text-decoration: none; color: var(--ink); }
.nav-logo .word {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--ink);
}

/* Live current-section label */
.nav-current {
  font-family: var(--f-code);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity 0.2s ease;
}
.nav-current:not(:empty)::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ink);
  margin-right: 9px;
  vertical-align: middle;
}

.nav-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }

/* Menu button */
.menu-btn {
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 14px;
  line-height: 1;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-full);
  padding: 10px 18px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.menu-btn:hover { border-color: var(--ink); }
.menu-bars { display: inline-flex; flex-direction: column; gap: 3px; }
.menu-bars span { width: 15px; height: 1.5px; background: var(--ink); border-radius: 2px; }

/* Full menu overlay */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(255,255,255,0.98);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  display: flex;
  align-items: flex-start;
}
.menu-overlay.open { opacity: 1; visibility: visible; pointer-events: auto; }
.menu-overlay[hidden] { display: none; }
.menu-overlay-inner { width: 100%; padding-top: 0; padding-bottom: 40px; }
.menu-overlay-top {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(255,255,255,0.98);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex; justify-content: space-between; align-items: center;
  min-height: 56px;                            /* matches nav.primary height */
  padding-top: calc(8px + env(safe-area-inset-top, 0px));  /* clears status bar / notch */
  margin-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
}
.menu-overlay-top .word {
  font-family: var(--f-display); font-weight: 700; font-size: 17px; letter-spacing: 0.04em; color: var(--ink);
}
.menu-close {
  background: transparent; border: 1px solid var(--hairline-strong); border-radius: 50%;
  width: 34px; height: 34px; font-size: 20px; line-height: 1; color: var(--ink);
  cursor: pointer; transition: border-color 0.15s ease; flex-shrink: 0;
}
.menu-close:hover { border-color: var(--ink); }
.menu-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.menu-grid a {
  display: flex; flex-direction: column; gap: 8px;
  padding: 24px; border: 1px solid var(--hairline); border-radius: var(--r-lg);
  text-decoration: none; transition: border-color 0.15s ease, background 0.15s ease;
}
.menu-grid a:hover { border-color: var(--ink); background: var(--surface-soft); }
.m-eyebrow { font-family: var(--f-code); font-size: 10px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mute); }
.m-title { font-family: var(--f-display); font-weight: 600; font-size: 18px; letter-spacing: -0.01em; color: var(--ink); }
.menu-overlay-foot {
  margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--hairline);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.menu-foot-link { display: inline-flex; align-items: center; gap: 12px; font-family: var(--f-display); font-weight: 600; font-size: 15px; color: var(--ink); text-decoration: none; }
.menu-foot-link:hover { color: var(--charcoal); }
.menu-foot-note { font-family: var(--f-code); font-size: 10.5px; letter-spacing: 0.06em; color: var(--mute); }

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 14px;
  line-height: 1;
  padding: 11px 20px;
  border-radius: var(--r-full);
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary       { background: var(--ink); color: var(--on-dark); }
.btn-primary:active { background: var(--ink-deep); }
.btn-secondary     {
  background: var(--canvas);
  color: var(--ink);
  border-color: var(--hairline-strong);
  padding: 10px 20px;
}
.btn-pill-on-dark  { background: var(--canvas); color: var(--ink); }

/* ── Hero ───────────────────────────────────────────────────────────── */
section.hero {
  padding: var(--s-section) 0 64px;
  text-align: center;
}
.hero-clarifier {
  font-family: var(--f-code);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.hero h1 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 36px;
  line-height: 1.11;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 16px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}
.hero-sub {
  font-size: 16px;
  line-height: 1.5;
  color: var(--body);
  margin: 0 auto 32px;
  max-width: 480px;
}

/* Signup pill — the install-snippet analogue */
.signup-pill {
  display: flex;
  align-items: center;
  background: var(--surface-soft);
  border-radius: var(--r-full);
  padding: 6px 6px 6px 20px;
  max-width: 460px;
  margin: 0 auto;
  height: 48px;
  gap: 8px;
}
.signup-pill:focus-within { box-shadow: 0 0 0 3px var(--focus-ring); }
.signup-pill input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  font-family: var(--f-body);
  font-size: 16px;
  color: var(--ink);
  min-width: 0;
}
.signup-pill input::placeholder { color: var(--mute); }
.signup-pill button {
  background: var(--ink);
  color: var(--on-dark);
  border: none;
  border-radius: var(--r-full);
  padding: 0 18px;
  height: 36px;
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.signup-pill button:active { background: var(--ink-deep); }
.signup-pill.done button { background: var(--ink-deep); }
.signup-error {
  margin: 10px 2px 0;
  font-size: 14px;
  line-height: 1.4;
  color: #c0392b;
}

.hero-caption {
  margin-top: 16px;
  font-size: 12px;
  line-height: 1.33;
  color: var(--mute);
}

/* ── Section ────────────────────────────────────────────────────────── */
section { padding: var(--s-section) 0; }
section + section { border-top: 1px solid var(--hairline); }

.section-header {
  text-align: center;
  margin: 0 auto 64px;
  max-width: 640px;
}
.section-header h2 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin-bottom: 16px;
  color: var(--ink);
}
.section-header p {
  font-size: 16px;
  line-height: 1.5;
  color: var(--body);
  max-width: 540px;
  margin: 0 auto;
}

/* ── Cards Grid ─────────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* ── Card ───────────────────────────────────────────────────────────── */
.card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-num {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 30px;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.card-eyebrow {
  font-family: var(--f-code);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
}

.card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 6px;
}
.card .kicker {
  font-size: 14px;
  line-height: 1.43;
  color: var(--charcoal);
  margin-bottom: 20px;
}
.card .body-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--body);
  margin-bottom: 14px;
}
.card .body-text:last-of-type { margin-bottom: 20px; }

.stat-list {
  list-style: none;
  border-top: 1px solid var(--hairline);
  padding-top: 8px;
  margin-bottom: 16px;
}
.stat-list li {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.43;
}
.stat-list .check {
  color: var(--ink);
  font-weight: 600;
  width: 14px;
  flex-shrink: 0;
}
.stat-list .num {
  color: var(--ink);
  font-weight: 600;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.stat-list .label {
  color: var(--charcoal);
  flex: 1;
}

.source {
  font-family: var(--f-code);
  font-size: 12px;
  letter-spacing: 0.01em;
  color: var(--mute);
  margin-bottom: 20px;
}

.tldr {
  border-top: 1px solid var(--hairline);
  padding-top: 16px;
  margin-top: auto;
}
.tldr-label {
  font-family: var(--f-code);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.tldr-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--body);
}

/* ── Dark card variant (the single inversion) ────────────────────────── */
.card.dark {
  background: var(--surface-dark);
  border-color: var(--surface-dark);
  color: var(--on-dark);
}
.card.dark .card-num,
.card.dark h3              { color: var(--on-dark); }
.card.dark .card-eyebrow   { color: var(--on-dark-mute); }
.card.dark .kicker         { color: var(--on-dark-mute); }
.card.dark .body-text      { color: var(--on-dark-mute); }
.card.dark .stat-list      { border-top-color: var(--hairline-on-dark); }
.card.dark .stat-list .check,
.card.dark .stat-list .num { color: var(--on-dark); }
.card.dark .stat-list .label { color: var(--on-dark-mute); }
.card.dark .source         { color: var(--on-dark-mute); }
.card.dark .tldr           { border-top-color: var(--hairline-on-dark); }
.card.dark .tldr-label     { color: var(--on-dark); }
.card.dark .tldr-text      { color: var(--on-dark-mute); }

/* ── Fee bars (card 04) ──────────────────────────────────────────────── */
.fee-bars {
  margin: 4px 0 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fee-row {
  display: grid;
  grid-template-columns: 64px 1fr 88px;
  gap: 14px;
  align-items: center;
}
.fee-row .key {
  font-family: var(--f-code);
  font-size: 12px;
  color: var(--on-dark-mute);
  letter-spacing: 0.04em;
}
.fee-row .bar {
  height: 6px;
  background: var(--hairline-on-dark);
  border-radius: var(--r-full);
  overflow: hidden;
}
.fee-row .bar-fill {
  height: 100%;
  background: var(--on-dark);
  border-radius: var(--r-full);
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.fee-row.lost .bar-fill { background: var(--on-dark-faint); }
.fee-row .val {
  font-family: var(--f-code);
  font-size: 14px;
  color: var(--on-dark);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── Section eyebrow (soft-grey chip) ────────────────────────────────── */
.section-eyebrow {
  display: block;
  width: max-content;
  max-width: 100%;
  margin: 0 auto 48px;
  padding: 8px 16px 8px 18px;
  background: var(--surface-soft);
  color: var(--charcoal);
  border: 1px solid var(--hairline);
  border-radius: var(--r-full);
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
}

/* ── Mission intro ──────────────────────────────────────────────────── */
.lede-quote {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--charcoal);
  max-width: 640px;
  margin: 24px auto 0;
}
.mission-prose {
  max-width: 540px;
  margin: 0 auto 64px;
  text-align: left;
}
.mission-prose p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
  margin-bottom: 16px;
}
.mission-prose p:last-child { margin-bottom: 0; }

/* ── Feature card (130+) ────────────────────────────────────────────── */
.feature-card {
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 64px 32px;
  text-align: center;
  margin-bottom: 24px;
}
.feature-card .section-eyebrow { margin-bottom: 20px; }
.feature-stat {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 64px;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 8px;
}
.feature-stat-sub {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
  max-width: 420px;
  margin: 0 auto 24px;
}
.feature-text {
  font-size: 16px;
  line-height: 1.55;
  color: var(--body);
  max-width: 560px;
  margin: 0 auto 32px;
}

/* ── Pillar cards ───────────────────────────────────────────────────── */
.pillar-grid { margin-bottom: 0; }
.pillar { padding: 32px; }
.pillar .card-eyebrow {
  display: block;
  margin-bottom: 20px;
}
.pillar h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 12px;
}
.pillar .body-text {
  font-size: 15px;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: 0;
}

/* ── Closing summary (Expert Principle) ─────────────────────────────── */
.closing-statement {
  max-width: 640px;
  margin: 64px auto 0;
  padding-top: 48px;
  border-top: 1px solid var(--hairline);
  text-align: center;
}
.closing-statement .section-eyebrow { margin-bottom: 20px; }
.closing-title {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.33;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 16px;
}
.closing-body {
  font-size: 16px;
  line-height: 1.6;
  color: var(--body);
}


/* ── Proof / Track record cards ─────────────────────────────────────── */
.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 8px;
}
.proof-card { padding: 32px; display: flex; flex-direction: column; }
.proof-card .card-eyebrow { display: block; margin-bottom: 24px; }
.proof-year {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.proof-card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 10px;
}
.proof-card .body-text {
  font-size: 15px;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: 0;
}


/* ── Education / Sweet Spot ─────────────────────────────────────────── */
.edu-section { padding-bottom: 32px; }
.edu-section .section-header { margin-bottom: 0; }

.edu-card { padding: 32px; display: flex; flex-direction: column; }
.edu-card .card-head { margin-bottom: 20px; }
.edu-card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 10px;
}
.edu-card .body-text {
  font-size: 15px;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: 24px;
}

/* Static-card external link footer */
.card-external-link {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--f-code);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
}
.card-external-link .ext-arrow {
  width: 32px; height: 32px;
  border-radius: var(--r-full);
  background: var(--surface-soft);
  color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px;
  border: 1px solid var(--hairline);
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.25s;
}
.card-external-link:hover .ext-arrow {
  background: var(--ink); color: var(--on-dark); border-color: var(--ink);
  transform: translate(2px,-2px);
}


/* Card footer note (coming-soon badges) */
.card-footer-note {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}
.card-footer-note .footer-badge {
  display: inline-block;
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  background: var(--surface-soft);
  padding: 5px 12px;
  border-radius: var(--r-full);
  margin-bottom: 8px;
}
.card-footer-note p {
  font-size: 13px;
  line-height: 1.45;
  color: var(--body);
}

/* ── Card jump-link (internal anchor) ───────────────────────────────── */
.card-jump-link {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--f-code);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
}
.card-jump-link .jump-arrow {
  width: 32px; height: 32px;
  border-radius: var(--r-full);
  background: var(--ink);
  color: var(--on-dark);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px;
  transition: transform 0.25s;
}
.card-jump-link:hover .jump-arrow { transform: translateY(2px); }


/* ── Archetype section (Option A and C share most styling) ──────────── */
.archetype-section { padding: 56px 0 88px; }
.subsection-header {
  text-align: center;
  margin: 0 auto 40px;
  max-width: 640px;
}
.subsection-header .section-eyebrow { justify-content: center; }
.subsection-header h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 12px;
}
.subsection-header p {
  font-size: 15px;
  line-height: 1.5;
  color: var(--body);
  max-width: 520px;
  margin: 0 auto;
}

/* ── Archetype panel content (title + headline + Fix/Action/Why grid) ─ */
.archetype-title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 6px;
}
.archetype-headline {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.4;
  color: var(--charcoal);
  margin-bottom: 18px;
}

/* Shared panel-grid (Fix / Action / Why rows) */
.panel-grid {
  display: flex;
  flex-direction: column;
  margin-top: auto;
}
.panel-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--hairline);
}
.panel-row:first-child { padding-top: 14px; }
.panel-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--mute);
  text-transform: uppercase;
}
.panel-row p {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
}

/* ── Tab shell (Option C) ───────────────────────────────────────────── */
.tab-shell {
  max-width: 760px;
  margin: 0 auto 48px;
}
.tab-bar {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface-soft);
  border-radius: var(--r-full);
  margin-bottom: 24px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.tab-bar::-webkit-scrollbar { display: none; }
.tab-btn {
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 500;
  padding: 9px 16px;
  border: none;
  background: transparent;
  color: var(--charcoal);
  cursor: pointer;
  border-radius: var(--r-full);
  white-space: nowrap;
  flex: 1;
  transition: background 0.2s, color 0.2s;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
  background: var(--ink);
  color: var(--on-dark);
}
.tab-content {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 32px;
  min-height: 260px;
}
.tab-panel { display: none; }
.tab-panel.active {
  display: block;
  animation: fadeIn 0.35s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.tab-content .archetype-title {
  font-size: 22px;
  margin-bottom: 8px;
}
.tab-content .archetype-headline {
  font-size: 17px;
  margin-bottom: 20px;
}

/* ── Science block ──────────────────────────────────────────────────── */
.science-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px;
  background: var(--surface-soft);
  border-radius: var(--r-lg);
}
.science-label {
  font-family: var(--f-code);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mute);
  text-transform: uppercase;
  margin-bottom: 18px;
  text-align: center;
}
.science-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.science-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
}
.science-num {
  font-family: var(--f-code);
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.04em;
  padding-top: 2px;
}
.science-list strong {
  font-weight: 600;
  color: var(--ink);
  font-size: 14px;
  font-family: var(--f-display);
}
.science-list p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--body);
  margin-top: 4px;
}

/* ── Budgeting: stack callout + tool list ───────────────────────────── */
.stack-callout {
  background: var(--surface-soft);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  margin-bottom: 24px;
}
.stack-name {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 4px;
}
.stack-desc {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
}

.tool-list {
  list-style: none;
  border-top: 1px solid var(--hairline);
}
.tool-row {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}
.tool-row:last-child { border-bottom: none; }
.tool-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 4px;
}
.tool-name {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.tool-cost {
  font-family: var(--f-code);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--charcoal);
  background: var(--canvas);
  border: 1px solid var(--hairline-strong);
  padding: 4px 10px;
  border-radius: var(--r-full);
  white-space: nowrap;
  flex-shrink: 0;
}
.tool-use {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
}

/* ── Placeholder block (coming-soon sub-sections) ───────────────────── */
.placeholder-block {
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 44px 32px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.placeholder-badge {
  display: inline-block;
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--charcoal);
  background: var(--canvas);
  border: 1px solid var(--hairline);
  padding: 6px 14px;
  border-radius: var(--r-full);
  margin-bottom: 18px;
}
.placeholder-msg {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ink);
  max-width: 480px;
  margin: 0 auto 24px;
}
.placeholder-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-code);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.placeholder-link .ext-arrow {
  width: 28px; height: 28px;
  border-radius: var(--r-full);
  background: var(--canvas);
  border: 1px solid var(--hairline);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.25s;
}
.placeholder-link:hover .ext-arrow {
  background: var(--ink);
  color: var(--on-dark);
  border-color: var(--ink);
  transform: translate(2px,-2px);
}

/* ── Physics of Wealth: spring flashcards ───────────────────────────── */
.spring-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.flashcard {
  perspective: 1400px;
  min-height: 540px;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  touch-action: manipulation;
}
.flashcard:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 4px; border-radius: var(--r-lg); }
.flashcard-inner {
  position: relative;
  width: 100%;
  min-height: 540px;
  transition: transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
  transform-style: preserve-3d;
}
/* Tap-triggered flip — works on every device */
.flashcard.flipped .flashcard-inner { transform: rotateY(180deg); }
/* Hover-triggered flip — only on devices with a real pointer (avoids sticky-hover on touch) */
@media (hover: hover) {
  .flashcard:hover .flashcard-inner { transform: rotateY(180deg); }
}

.flashcard-face {
  position: absolute;
  inset: 0;
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: border-color 0.2s;
}
@media (hover: hover) {
  .flashcard:hover .flashcard-face { border-color: var(--ink); }
}

/* Pointer-events: only the visible face is clickable — prevents hidden face
   from intercepting taps in any rendering scenario */
.flashcard-back { pointer-events: none; }
.flashcard.flipped .flashcard-front { pointer-events: none; }
.flashcard.flipped .flashcard-back { pointer-events: auto; }

/* TOUCH DEVICES: replace 3D rotation with an opacity crossfade.
   iOS Safari has unreliable hit-testing on rotated 3D elements — the back
   face often won't register taps after a flip, leaving the card stuck.
   Opacity-based swap has no 3D involved, so hit-testing is bulletproof. */
@media (hover: none) {
  .flashcard-inner {
    transform: none !important;
    transition: none;
    transform-style: flat;
  }
  .flashcard-face {
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
    transition: opacity 0.35s ease;
  }
  .flashcard-back { transform: none !important; opacity: 0; }
  .flashcard.flipped .flashcard-front { opacity: 0; }
  .flashcard.flipped .flashcard-back { opacity: 1; }
}

.flashcard-front h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 4px 0 12px;
}
.spring-tagline {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
  margin-bottom: 18px;
}
.spring-tagline strong {
  font-weight: 600;
  color: var(--ink);
}

.spring-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
  margin-bottom: auto;
}
.spring-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
  align-items: baseline;
}
.spring-label {
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--mute);
  text-transform: uppercase;
}
.spring-row p {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--body);
}

.flip-cue {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.flip-icon {
  width: 24px; height: 24px;
  border-radius: var(--r-full);
  background: var(--canvas);
  border: 1px solid var(--hairline);
  color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.4s;
}
.flashcard.flipped .flip-icon {
  background: var(--ink);
  color: var(--on-dark);
  border-color: var(--ink);
  transform: rotate(180deg);
}
@media (hover: hover) {
  .flashcard:hover .flip-icon {
    background: var(--ink);
    color: var(--on-dark);
    border-color: var(--ink);
    transform: rotate(180deg);
  }
}

/* Back face (flipside) */
.flashcard-back {
  transform: rotateY(180deg);
  background: var(--surface-soft);
  justify-content: center;
  text-align: left;
}
.flipside-label {
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 10px;
}
.flipside-title {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 14px;
}
.flashcard-back p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--charcoal);
}

/* ── Narrative: index cards + setlists ──────────────────────────────── */
.narrative-section { padding-bottom: 32px; }
.narrative-section .section-header { margin-bottom: 0; }

.index-grid {
  display: grid;
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}
.index-grid-2 { grid-template-columns: repeat(2, 1fr); max-width: 800px; }
.index-grid-3 { grid-template-columns: repeat(3, 1fr); }

.index-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.index-card .card-head { margin-bottom: 0; }
.index-card .card-num {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.index-card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.index-card .body-text {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--body);
}
.index-tag {
  margin-top: auto;
  display: inline-block;
  align-self: flex-start;
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--charcoal);
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  padding: 5px 11px;
  border-radius: var(--r-full);
}

/* Card 6 (special): list of 3 ETF wrapper options */
.etf-options {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}
.etf-options li {
  padding: 12px 0;
  border-top: 1px solid var(--hairline);
  font-size: 13px;
  line-height: 1.5;
  color: var(--body);
}
.etf-options li:first-child { padding-top: 0; border-top: none; }
.etf-options strong {
  font-family: var(--f-display);
  font-weight: 600;
  color: var(--ink);
  font-size: 13.5px;
}

/* Dark variant of index-card (e.g., the All-Access Pass) */
.index-card.dark .etf-options li {
  border-top-color: var(--hairline-on-dark);
  color: var(--on-dark-mute);
}
.index-card.dark .etf-options strong { color: var(--on-dark); }
.index-card.dark .index-tag {
  background: transparent;
  border-color: var(--hairline-on-dark);
  color: var(--on-dark-mute);
}

/* § 06.3 ETF Package prose */
.etf-prose {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.etf-prose p {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--body);
  margin-bottom: 16px;
}
.etf-prose p:last-child { margin-bottom: 0; }
.etf-prose strong { color: var(--ink); font-weight: 600; }

/* ── The Snap-Back: cycle cards ─────────────────────────────────────── */
.cycle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.cycle-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cycle-card .card-num {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.cycle-card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.cycle-card .body-text {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--body);
}
.cycle-card em {
  font-style: italic;
  color: var(--ink);
}

/* ── Interactive Workshop ──────────────────────────────────────────── */
.workshop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
}
.workshop-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
}
.workshop-card h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 6px;
}
.workshop-card .card-hint {
  font-size: 13px;
  line-height: 1.5;
  color: var(--body);
  margin-bottom: 24px;
}

/* Spring picker */
.spring-picker {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.spring-toggle {
  padding: 12px 12px;
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-full);
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--charcoal);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
@media (hover: hover) {
  .spring-toggle:hover { border-color: var(--ink); color: var(--ink); }
}
.spring-toggle[aria-pressed="true"] {
  background: var(--ink);
  color: var(--on-dark);
  border-color: var(--ink);
}

/* Vibe display */
.vibe-display {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.vibe-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.vibe-label-prefix {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.vibe-label-value {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
  transition: color 0.3s;
}
.vibe-bar-track {
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-full);
  height: 16px;
  overflow: hidden;
}
.vibe-bar-fill {
  height: 100%;
  width: 0%;
  background: transparent;
  border-radius: var(--r-full);
  transition: width 0.55s cubic-bezier(0.65, 0, 0.35, 1), background 0.4s ease;
}
.vibe-summary {
  font-size: 14px;
  line-height: 1.55;
  color: var(--body);
  min-height: 44px;
}
.vibe-extras {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 26px;
}
.vibe-badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 11px;
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-full);
  color: var(--charcoal);
  animation: fadeInBadge 0.3s ease;
}
@keyframes fadeInBadge {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── § 07.2 The SensiFi Edge ───────────────────────────────────────── */
.edge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 880px;
  margin: 0 auto 40px;
}
.edge-grid .cycle-card { padding: 28px; }

/* TL;DR callout (dark inversion) */
.tldr-callout {
  background: var(--surface-dark);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tldr-callout .tldr-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-mute);
}
.tldr-callout p {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--on-dark);
}
.tldr-callout strong { color: var(--on-dark); font-weight: 700; }

/* ── § 07.3 Educational Models ─────────────────────────────────────── */
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto 40px;
}
.model-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.model-card .card-eyebrow {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.model-card h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.model-card .body-text {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--body);
}
.model-examples {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.model-examples-label {
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}
.model-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.model-chip {
  font-family: var(--f-body);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 4px 9px;
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-full);
  color: var(--charcoal);
}
.model-note {
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  font-family: var(--f-display);
  font-style: italic;
  font-size: 13px;
  line-height: 1.45;
  color: var(--charcoal);
}

/* Featured variant — the Electric Model (used in simulation) */
.model-card.featured {
  border-color: var(--ink);
  box-shadow: 0 0 0 1px var(--ink);
}
.model-card.featured .model-note {
  color: var(--ink);
  font-weight: 600;
}

/* Coming-soon variant — the Bullet Model */
.model-card.coming-soon {
  background: var(--surface-soft);
}
.model-card.coming-soon .model-note {
  color: var(--body);
}

/* Note stack (regulatory caveats) */
.note-stack {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.note-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 14px 18px;
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
}
.note-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.note-row p {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
}

/* § 07 takeaway closing statement */
.edge-takeaway {
  text-align: center;
  margin: 56px auto 0;
  max-width: 640px;
  padding-top: 40px;
  border-top: 1px dashed var(--hairline-strong);
}

/* ── § 07.4 Simulation tool ────────────────────────────────────────── */
.sim-tool {
  max-width: 960px;
  margin: 0 auto;
}

/* Questions */
.sim-questions {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 44px;
}
.sim-q-label {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 14px;
}
.sim-segment {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.sim-opt {
  font-family: var(--f-body);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.3;
  padding: 12px 14px;
  background: var(--canvas);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-full);
  color: var(--charcoal);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  text-align: center;
}
.sim-opt:hover { border-color: var(--ink); }
.sim-opt.is-active {
  background: var(--surface-dark);
  border-color: var(--surface-dark);
  color: var(--on-dark);
}

/* Sliders */
.sim-sliders {
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  margin-bottom: 44px;
}
.sim-sliders-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 22px;
}
.sim-slider-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  gap: 24px;
  padding: 12px 0;
}
.sim-slider-row + .sim-slider-row { border-top: 1px solid var(--hairline); }
.sim-slider-row label {
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
}

/* Range input — track + thumb, numbers intentionally hidden */
.sim-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: var(--r-full);
  background: var(--hairline-strong);
  outline: none;
  cursor: pointer;
}
.sim-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: var(--r-full);
  background: var(--surface-dark);
  border: 3px solid var(--canvas);
  box-shadow: 0 0 0 1px var(--hairline-strong);
  cursor: grab;
  transition: transform 0.12s ease;
}
.sim-slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.1); }
.sim-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: var(--r-full);
  background: var(--surface-dark);
  border: 3px solid var(--canvas);
  box-shadow: 0 0 0 1px var(--hairline-strong);
  cursor: grab;
}
.sim-slider::-moz-range-track {
  height: 4px;
  border-radius: var(--r-full);
  background: var(--hairline-strong);
}
.sim-slider:focus-visible { box-shadow: 0 0 0 3px var(--focus-ring); }

/* Charts */
.sim-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.sim-chart-block {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
  min-width: 0;
}
.chart-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 18px;
}
.chart-area {
  position: relative;
  width: 100%;
  min-height: 360px;
}

/* Loading + error states */
.sim-tool.is-loading .chart-area { opacity: 0.45; transition: opacity 0.2s ease; }
.sim-status {
  min-height: 22px;
  margin-top: 20px;
  text-align: center;
  font-family: var(--f-code);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}
.sim-status.is-error {
  text-transform: none;
  letter-spacing: 0.01em;
  font-family: var(--f-body);
  font-size: 13.5px;
  color: var(--ink);
}

/* ── § 09 The Next Move ────────────────────────────────────────────── */
.move-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.move-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.move-card .card-eyebrow {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.move-card h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.move-card .body-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--body);
}
.move-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.move-list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--body);
}
.move-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: var(--r-full);
  background: var(--charcoal);
}
.move-list strong { color: var(--ink); font-weight: 600; }
.move-tag {
  margin-top: auto;
  padding-top: 18px;
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  border-top: 1px solid var(--hairline);
}

/* ── § 10 Important Information ─────────────────────────────────────── */
.info-section {
  background: var(--surface-soft);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 96px 0;
}
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}
.info-card {
  background: var(--canvas);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.info-card h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.info-card .body-text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--body);
}
.info-emphasis {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
  font-size: 12.5px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--charcoal);
}

/* ── § 06.3 ETF flashcards ─────────────────────────────────────────── */
.etf-section-header {
  text-align: center;
  margin: 56px auto 28px;
  max-width: 640px;
}
.etf-intro-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 8px;
}
.etf-intro-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--body);
}
.etf-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
}

/* Compact flashcard variant for ETFs */
.flashcard-compact {
  min-height: 180px;
}
.flashcard-compact .flashcard-inner { min-height: 180px; }
.flashcard-compact .flashcard-face { padding: 20px; }

.etf-category {
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 6px;
}
.etf-name {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.flashcard-compact .flip-cue {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-family: var(--f-code);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.flashcard-compact .flashcard-back p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--body);
  margin: auto 0;
}

/* Dark variant of compact flashcards (the highlighted-in-dark ETFs) */
.flashcard-compact.dark .flashcard-face {
  background: var(--surface-dark);
  border-color: var(--surface-dark);
}
.flashcard-compact.dark .etf-category { color: var(--on-dark-mute); }
.flashcard-compact.dark .etf-name     { color: var(--on-dark); }
.flashcard-compact.dark .flip-cue {
  color: var(--on-dark-mute);
  border-top-color: var(--hairline-on-dark);
}
.flashcard-compact.dark .flip-icon {
  background: transparent;
  border-color: var(--hairline-on-dark);
  color: var(--on-dark);
}
.flashcard-compact.dark .flashcard-back p { color: var(--on-dark-mute); }
@media (hover: hover) {
  .flashcard-compact.dark:hover .flashcard-face { border-color: var(--on-dark-mute); }
}

/* Tooltip styling */
.tooltip-trigger {
  border-bottom: 1px dashed var(--charcoal);
  cursor: help;
  position: relative;
  display: inline-block;
  color: var(--ink);
  font-weight: 500;
}
.tooltip-trigger::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  background: var(--surface-dark);
  color: var(--on-dark);
  padding: 8px 12px;
  border-radius: var(--r-sm);
  font-size: 12px;
  line-height: 1.4;
  white-space: normal;
  width: 220px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  opacity: 0;
  pointer-events: none;
  z-index: 10;
  transition: opacity 0.15s, transform 0.15s;
}
.tooltip-trigger:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* Tax Wrapper Cheat Grid */
.wrapper-cheat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: left;
  margin-top: 16px;
}
.cheat-item {
  background: var(--canvas);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-sm);
  padding: 14px;
}
.cheat-item strong {
  display: block;
  font-family: var(--f-body);
  font-size: 13px;
  color: var(--ink);
  margin-bottom: 6px;
}
.cheat-item p {
  font-size: 11px;
  line-height: 1.4;
  color: var(--body);
  margin: 0;
}

@media (max-width: 768px) {
  .wrapper-cheat-grid { grid-template-columns: 1fr; }
}

/* ── Footer ─────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--hairline);
  background: var(--surface-soft);
  padding: 48px 24px 32px;
}
.footer-risk {
  max-width: 1080px;
  margin: 0 auto 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
  font-size: 13px;
  line-height: 1.6;
  color: var(--charcoal);
}
.footer-risk strong { color: var(--ink); font-weight: 700; }
.footer-cols {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 40px;
}
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 4px;
}
.footer-links-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; }
.footer-col a {
  color: var(--body);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: color 0.15s ease;
}
.footer-col a:hover { color: var(--ink); }
.footer-blurb { font-size: 13.5px; line-height: 1.55; color: var(--body); margin-bottom: 4px; max-width: 320px; }
.footer-meta { font-family: var(--f-code); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); margin-top: 4px; }
.footer-bottom {
  max-width: 1080px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-bottom .copy { font-size: 12px; line-height: 1.4; color: var(--mute); }

/* ── Contact section ───────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px;
  background: var(--surface-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
}
.contact-label {
  font-family: var(--f-code);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.contact-card a { color: var(--ink); font-size: 15px; font-weight: 500; text-decoration: none; }
.contact-card a:hover { text-decoration: underline; }
.contact-text { font-size: 14px; line-height: 1.5; color: var(--charcoal); }
.contact-note { font-size: 12.5px; line-height: 1.5; color: var(--body); }
.contact-note a { font-size: 12.5px; font-weight: 500; text-decoration: underline; }

/* ── Legal pages (privacy / terms / risk disclosure) ───────────────── */
.legal-page { padding: 56px 0 88px; }
.legal-page .container { max-width: 760px; }
.legal-page h1 {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 12px 0 8px;
}
.legal-updated {
  font-family: var(--f-code);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 36px;
}
.legal-page h2 {
  font-family: var(--f-display);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 34px 0 10px;
}
.legal-page p, .legal-page li { font-size: 15px; line-height: 1.65; color: var(--body); }
.legal-page p { margin-bottom: 14px; }
.legal-page ul { margin: 0 0 14px; padding-left: 20px; }
.legal-page li { margin-bottom: 8px; }
.legal-page a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }
.legal-page strong { color: var(--charcoal); font-weight: 600; }
.legal-callout {
  background: var(--surface-soft);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-lg);
  padding: 20px 22px;
  margin: 0 0 28px;
}
.legal-callout p { margin: 0; color: var(--charcoal); font-size: 14.5px; }
.legal-callout p strong { color: var(--ink); }

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 850px) {
  .cards-grid { grid-template-columns: 1fr; gap: 16px; }
  .spring-grid { grid-template-columns: repeat(2, 1fr); }
  .index-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .etf-grid { grid-template-columns: repeat(3, 1fr); }
  .model-grid { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 768px) {
  .container, .container-wide { padding: 0 20px; }
  .footer-cols { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-current { display: none; }      /* keep the bar clean on small screens */
  .btn-secondary { display: none; }   /* keep Download/CTA visible only */
  .menu-btn { padding: 8px 14px; }
  .btn.btn-primary { padding: 9px 16px; }
  .menu-grid { grid-template-columns: 1fr; gap: 10px; }
  .menu-grid a { flex-direction: row; align-items: baseline; gap: 12px; padding: 16px 18px; }
  .m-title { font-size: 16px; }
  .menu-overlay-top { min-height: 52px; }   /* matches mobile nav height */
  .menu-overlay-foot { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  nav.primary .container-wide { gap: 12px; }
  .menu-btn { padding: 7px 11px; font-size: 0; gap: 0; }   /* icon-only: hide the word */
  .menu-btn .menu-bars span { width: 17px; }
  .btn.btn-primary { padding: 8px 14px; font-size: 13px; }

  section.hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 28px; line-height: 1.15; }

  section { padding: 56px 0; }
  .section-header { margin-bottom: 40px; }
  .section-header h2 { font-size: 26px; }

  .card { padding: 24px; }
  .card-num { font-size: 26px; }

  .signup-pill { max-width: 100%; }

  .feature-card { padding: 48px 24px; }
  .feature-stat { font-size: 52px; }
  .feature-stat-sub { font-size: 17px; }

  .pillar { padding: 24px; }
  .proof-grid { grid-template-columns: 1fr; gap: 16px; }
  .proof-card { padding: 24px; }
  .proof-year { font-size: 36px; }
  .cycle-grid { grid-template-columns: 1fr; gap: 16px; }
  .cycle-card { padding: 24px; }
  .spring-grid { grid-template-columns: 1fr; gap: 16px; }
  .index-grid-2, .index-grid-3 { grid-template-columns: 1fr; gap: 16px; }
  .index-card { padding: 24px; }
  .etf-prose p { font-size: 16px; }
  .workshop-grid { grid-template-columns: 1fr; gap: 16px; }
  .workshop-card { padding: 24px; }
  .spring-picker { grid-template-columns: repeat(2, 1fr); }
  .vibe-label { font-size: 22px; }
  .sim-charts { grid-template-columns: 1fr; gap: 16px; }
  .sim-chart-block { padding: 18px; }
  .sim-sliders { padding: 22px 20px; }
  .sim-slider-row { grid-template-columns: 1fr; gap: 12px; padding: 14px 0; }
  .sim-segment { grid-template-columns: 1fr; gap: 6px; }
  .sim-opt { text-align: left; }
  .sim-q-label { font-size: 15px; }
  .edge-grid { grid-template-columns: 1fr; gap: 16px; }
  .move-grid { grid-template-columns: 1fr; gap: 16px; }
  .move-card { padding: 24px; }
  .info-grid { grid-template-columns: 1fr; gap: 14px; }
  .info-section { padding: 64px 0; }
  .tldr-callout { padding: 24px; }
  .tldr-callout p { font-size: 16px; }
  .etf-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .flashcard-compact { min-height: 200px; }
  .flashcard-compact .flashcard-inner { min-height: 200px; }
  .note-row { grid-template-columns: 1fr; gap: 4px; padding: 14px 16px; }
  .flashcard-face { padding: 24px; }
  .flipside-title { font-size: 22px; }
  .edu-card { padding: 24px; }
  .closing-title { font-size: 22px; }
  .closing-statement { padding-top: 40px; margin-top: 48px; }
  .lede-quote { font-size: 18px; }

  .archetype-section { padding: 40px 0 56px; }
  .subsection-header { margin-bottom: 32px; }
  .subsection-header h3 { font-size: 22px; }
  .tab-btn { font-size: 12px; padding: 7px 10px; }
  .tab-content { padding: 24px; }
  .tab-content .archetype-title { font-size: 20px; }
  .tab-content .archetype-headline { font-size: 16px; }
  .science-section { padding: 24px; }
}

@media (max-width: 480px) {
  .signup-pill {
    flex-direction: column;
    height: auto;
    padding: 6px;
    border-radius: var(--r-lg);
    gap: 6px;
  }
  .signup-pill input { width: 100%; padding: 10px 12px; }
  .signup-pill button { width: 100%; height: 44px; border-radius: var(--r-lg); }
  .fee-row { grid-template-columns: 56px 1fr 76px; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .fee-row .bar-fill { transition: none; }
}