:root {
    --white:    #ffffff;
    --surface:  #f7f7f5;
    --ink:      #1a1a1a;
    --mid:      #6e6e6e;
    --faint:    #b0b0b0;
    --rule:     #e8e8e5;
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Helvetica, Arial, sans-serif;
    --font-serif:  Georgia, serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--white);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* ── NAVBAR ── */
  .navbar {
    background: rgba(255,255,255,0.88) !important;
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--rule);
    padding: 0.9rem 0;
  }

  .navbar-brand {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--ink) !important;
    text-decoration: none;
  }

  .nav-link {
    font-size: 0.82rem;
    font-weight: 400;
    color: var(--mid) !important;
    padding: 0.3rem 1rem !important;
    transition: color 0.2s;
    letter-spacing: 0.2px;
  }

  .nav-link:hover, .nav-link.active { color: var(--ink) !important; }

  .btn-nav {
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--ink);
    color: var(--white) !important;
    padding: 0.45rem 1.3rem !important;
    border-radius: 980px;
    transition: background 0.2s;
    letter-spacing: 0.2px;
  }

  .btn-nav:hover { background: #000 !important; color: var(--white) !important; }

  .navbar-toggler { border: none; color: var(--ink); }
  .navbar-toggler:focus { box-shadow: none; }

  /* ── HERO ── */
  .hero {
    padding: 9rem 0 8rem;
    text-align: center;
  }

  .hero-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--mid);
    margin-bottom: 2.2rem;
  }

  .hero-title {
    font-family: var(--font-sans);
    font-size: clamp(3rem, 6.5vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -2.5px;
    color: var(--ink);
    margin-bottom: 1.6rem;
  }

  .hero-title em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 100;
    letter-spacing: -1px;
    color: var(--ink);
  }

  .hero-sub {
    font-size: 1.15rem;
    font-weight: 300;
    color: var(--mid);
    max-width: 520px;
    margin: 0 auto 3rem;
    line-height: 1.7;
    letter-spacing: 0.1px;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
  }

  .btn-primary-pill {
    display: inline-block;
    font-size: 0.88rem;
    font-weight: 500;
    background: var(--ink);
    color: var(--white);
    padding: 0.8rem 2.2rem;
    border-radius: 980px;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s;
    letter-spacing: 0.2px;
    border: none;
  }

  .btn-primary-pill:hover {
    background: #000;
    color: var(--white);
    text-decoration: none;
    transform: scale(1.02);
  }

  .btn-text-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--mid);
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: 0.2px;
  }

  .btn-text-link:hover { color: var(--ink); text-decoration: none; }
  .btn-text-link::after { content: '→'; font-size: 0.9em; transition: transform 0.2s; }
  .btn-text-link:hover::after { transform: translateX(3px); }

  /* ── DIVIDER ── */
  .divider {
    width: 100%;
    height: 1px;
    background: var(--rule);
    border: none;
    margin: 0;
  }

  /* ── STATS ── */
  .stats-row {
    padding: 4rem 0;
    background: var(--white);
  }

  .stat-block {
    text-align: center;
    padding: 0 1rem;
  }

  .stat-block + .stat-block {
    border-left: 1px solid var(--rule);
  }

  .stat-value {
    display: block;
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -1.5px;
    color: var(--ink);
    line-height: 1;
    font-variant-numeric: tabular-nums;
  }

  .stat-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--faint);
    margin-top: 6px;
    letter-spacing: 0.3px;
  }

  /* ── FEATURES ── */
  .features-section {
    padding: 7rem 0;
    background: var(--surface);
  }

  .section-eyebrow {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--faint);
    display: block;
    margin-bottom: 1rem;
  }

  .section-heading {
    font-family: var(--font-sans);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -1.5px;
    color: var(--ink);
    line-height: 1.1;
    margin-bottom: 4rem;
  }

  .feature-item {
    padding: 2.5rem 0;
    border-top: 1px solid var(--rule);
  }

  .feature-item:last-child {
    border-bottom: 1px solid var(--rule);
  }

  .feature-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--faint);
    margin-bottom: 0.5rem;
  }

  .feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--ink);
    margin-bottom: 0.6rem;
  }

  .feature-desc {
    font-size: 0.92rem;
    font-weight: 400;
    color: var(--mid);
    line-height: 1.75;
    max-width: 480px;
  }

  /* ── MANIFESTO ── */
  .manifesto-section {
    padding: 9rem 0;
    background: var(--white);
    text-align: center;
  }

  .manifesto-pullquote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(2rem, 4.5vw, 3.8rem);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: var(--ink);
    max-width: 780px;
    margin: 0 auto 4rem;
  }

  .manifesto-body {
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.9;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
  }

  .manifesto-body p { margin-bottom: 1.2rem; }
  .manifesto-body p:last-child { margin: 0; }
  .manifesto-body strong { color: var(--ink); font-weight: 500; }

  /* ── PROTOCOL ── */
  .protocol-section {
    padding: 7rem 0;
  }

  .protocol-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 3rem;
  }

  .protocol-step {
    padding: 0 2.5rem 0 0;
  }

  .protocol-step + .protocol-step {
    padding-left: 2.5rem;
    border-left: 1px solid var(--rule);
  }

  .step-n {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--faint);
    letter-spacing: 1px;
    margin-bottom: 1.2rem;
  }

  .step-title {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: var(--ink);
    margin-bottom: 0.6rem;
  }

  .step-desc {
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.75;
  }

  /* ── DISCLAIMER ── */
  .disclaimer-section {
    padding: 7rem 0;
    background: var(--white);
  }

  .disclaimer-card {
    background: var(--surface);
    border-radius: 18px;
    padding: 3rem 3.5rem;
    max-width: 720px;
    margin: 0 auto;
  }

  .disclaimer-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--faint);
    border: 1px solid var(--rule);
    border-radius: 980px;
    padding: 3px 12px;
    margin-bottom: 1.5rem;
  }

  .disclaimer-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--ink);
    margin-bottom: 1.5rem;
  }

  .disclaimer-card p {
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.85;
    margin-bottom: 0.9rem;
  }

  .disclaimer-card p:last-child { margin: 0; }
  .disclaimer-card strong { color: var(--ink); font-weight: 500; }

  /* ── FOOTER ── */
  footer {
    background: var(--white);
    border-top: 1px solid var(--rule);
    padding: 3rem 0;
  }

  .footer-brand {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.2px;
  }

  .footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  .footer-links a {
    font-size: 0.8rem;
    color: var(--faint);
    text-decoration: none;
    transition: color 0.2s;
  }

  .footer-links a:hover { color: var(--ink); }

  .footer-right {
    font-size: 0.78rem;
    color: var(--faint);
    text-align: right;
  }

  /* ── SOCIALS ── */
  .socials-section {
    padding: 5rem 0;
    background: var(--surface);
    text-align: center;
  }

  .social-row {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 2.5rem;
  }

  .social-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--mid);
    background: var(--white);
    border: 1px solid var(--rule);
    border-radius: 980px;
    padding: 0.55rem 1.3rem;
    text-decoration: none;
    transition: all 0.2s;
    letter-spacing: 0.2px;
  }

  .social-btn:hover {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--white);
    text-decoration: none;
  }

  .social-btn svg { width: 13px; height: 13px; fill: currentColor; }

  /* ── RESPONSIVE ── */
  @media (max-width: 991px) {
    .protocol-steps { grid-template-columns: repeat(2, 1fr); gap: 2.5rem 0; }
    .protocol-step + .protocol-step { padding-left: 0; border-left: none; border-top: 1px solid var(--rule); padding-top: 2.5rem; }
    .protocol-step { padding-right: 0; }
    .protocol-steps .protocol-step:nth-child(odd) { padding-right: 2rem; border-right: 1px solid var(--rule); }
    .protocol-steps .protocol-step:nth-child(2) { padding-left: 2rem; border-top: none; }
  }

  @media (max-width: 767px) {
    .stat-block + .stat-block { border-left: none; border-top: 1px solid var(--rule); padding-top: 2rem; margin-top: 2rem; }
    .protocol-steps { grid-template-columns: 1fr; }
    .protocol-step + .protocol-step { padding-left: 0; border-left: none; }
    .protocol-steps .protocol-step:nth-child(odd) { padding-right: 0; border-right: none; }
    .protocol-steps .protocol-step:nth-child(2) { padding-left: 0; border-top: 1px solid var(--rule); }
    .disclaimer-card { padding: 2rem 1.5rem; }
    .footer-right { text-align: left; margin-top: 1rem; }
  }

  [id] { scroll-margin-top: 72px; }