:root, [data-theme="light"] {
      --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
      --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
      --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
      --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
      --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
      --text-2xl: clamp(2.2rem, 1.2rem + 3vw, 4.4rem);
      --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;
      --color-bg: #f7f6f2;
      --color-surface: #fcfbf8;
      --color-surface-2: #ffffff;
      --color-surface-offset: #ece9e1;
      --color-border: #d5d1c9;
      --color-divider: #e1ddd5;
      --color-text: #241f17;
      --color-text-muted: #6f6a63;
      --color-text-faint: #9c978f;
      --color-text-inverse: #f8f6f1;
      --color-primary: #01696f;
      --color-primary-hover: #0d5357;
      --color-primary-highlight: #d7e7e4;
      --color-accent: #c46d17;
      --color-accent-soft: #f2dfcc;
      --shadow-sm: 0 1px 2px rgba(25, 22, 18, 0.06);
      --shadow-md: 0 8px 30px rgba(25, 22, 18, 0.08);
      --shadow-lg: 0 20px 60px rgba(25, 22, 18, 0.12);
      --radius-sm: 0.375rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --radius-xl: 1.75rem;
      --font-display: 'Instrument Serif', Georgia, serif;
      --font-body: 'Work Sans', Arial, sans-serif;
      --content: 1180px;
      --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
    }
    [data-theme="dark"] {
      --color-bg: #151412;
      --color-surface: #1b1a18;
      --color-surface-2: #23211f;
      --color-surface-offset: #282624;
      --color-border: #393632;
      --color-divider: #2f2c28;
      --color-text: #ebe6de;
      --color-text-muted: #b4aea6;
      --color-text-faint: #7f7a74;
      --color-text-inverse: #1b1917;
      --color-primary: #56a4ad;
      --color-primary-hover: #6ab5be;
      --color-primary-highlight: #213436;
      --color-accent: #f0a04f;
      --color-accent-soft: #46372b;
      --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
      --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
      --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { margin: 0; min-height: 100vh; font-family: var(--font-body); font-size: var(--text-base); line-height: 1.6; color: var(--color-text); background: var(--color-bg); }
    img, svg { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    button { font: inherit; cursor: pointer; }
    :focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
    .skip-link { position: absolute; left: var(--space-4); top: -50px; background: var(--color-primary); color: var(--color-text-inverse); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); z-index: 100; }
    .skip-link:focus { top: var(--space-4); }
    .container { width: min(calc(100% - 2rem), var(--content)); margin-inline: auto; }
    .section { padding: clamp(var(--space-12), 8vw, var(--space-24)) 0; }
    .eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); padding: 0.45rem 0.8rem; border-radius: 999px; font-size: var(--text-xs); letter-spacing: 0.08em; text-transform: uppercase; background: var(--color-primary-highlight); color: var(--color-primary); font-weight: 700; }
    .eyebrow::before { content: ''; width: 0.5rem; height: 0.5rem; border-radius: 999px; background: currentColor; }
    .site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--color-bg) 86%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); }
    .header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4) 0; }
    .brand { display: inline-flex; align-items: center; gap: var(--space-3); font-weight: 700; }
    .brand-mark { width: 2.6rem; height: 2.6rem; padding: 0.45rem; border-radius: 0.85rem; background: var(--color-surface-2); border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent); box-shadow: var(--shadow-sm); }
    .brand-name { display: flex; flex-direction: column; line-height: 1.1; }
    .brand-name span:last-child { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
    .nav { display: flex; align-items: center; gap: var(--space-5); }
    .nav-links { display: flex; gap: var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); }
    .nav-links a:hover { color: var(--color-text); }
    .header-actions { display: flex; align-items: center; gap: var(--space-3); }
    .theme-toggle { width: 2.8rem; height: 2.8rem; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--color-text) 12%, transparent); background: var(--color-surface-2); color: var(--color-text); }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem; min-height: 44px; padding: 0.9rem 1.2rem; border-radius: 999px; border: 1px solid transparent; font-size: var(--text-sm); font-weight: 700; transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition); }
    .btn:hover { transform: translateY(-1px); }
    .btn-primary { background: var(--color-primary); color: var(--color-text-inverse); box-shadow: var(--shadow-md); }
    .btn-primary:hover { background: var(--color-primary-hover); }
    .btn-secondary { background: transparent; color: var(--color-text); border-color: color-mix(in srgb, var(--color-text) 12%, transparent); }
    .hero { padding: clamp(var(--space-12), 8vw, var(--space-24)) 0 var(--space-16); }
    .hero-grid { display: grid; gap: var(--space-10); align-items: center; }
    .hero-copy h1 { margin: var(--space-5) 0 var(--space-5); font-family: var(--font-display); font-size: var(--text-2xl); line-height: 0.96; letter-spacing: -0.03em; max-width: 12ch; }
    .hero-copy p { max-width: 58ch; color: var(--color-text-muted); }
    .hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
    .stat-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); margin-top: var(--space-8); }
    .stat-card { padding: var(--space-5); background: var(--color-surface); border: 1px solid color-mix(in srgb, var(--color-text) 9%, transparent); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
    .stat-card strong { display: block; font-size: var(--text-xl); line-height: 1; margin-bottom: var(--space-2); }
    .hero-panel { position: relative; padding: var(--space-8); background: linear-gradient(180deg, color-mix(in srgb, var(--color-surface-2) 88%, transparent), color-mix(in srgb, var(--color-surface) 96%, transparent)); border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); overflow: hidden; }
    .hero-panel::after { content: ''; position: absolute; inset: auto -10% -20% 35%; height: 220px; background: radial-gradient(circle, color-mix(in srgb, var(--color-primary) 18%, transparent), transparent 68%); pointer-events: none; }
    .mini-chart { display: grid; gap: var(--space-3); }
    .line { display: flex; align-items: end; gap: 0.5rem; height: 180px; padding: var(--space-5); border-radius: var(--radius-lg); background: var(--color-surface-2); border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent); }
    .line span { flex: 1; border-radius: 999px 999px 0 0; background: linear-gradient(180deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 52%, var(--color-accent))); min-height: 28px; }
    .line span:nth-child(1){height:30%}.line span:nth-child(2){height:38%}.line span:nth-child(3){height:42%}.line span:nth-child(4){height:54%}.line span:nth-child(5){height:62%}.line span:nth-child(6){height:74%}.line span:nth-child(7){height:88%}
    .panel-stack { display: grid; gap: var(--space-4); margin-top: var(--space-5); }
    .panel-box { padding: var(--space-5); border-radius: var(--radius-lg); background: var(--color-surface-2); border: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent); }
    .section-head { display: grid; gap: var(--space-4); margin-bottom: var(--space-8); }
    .section-head h2 { font-family: var(--font-display); font-size: var(--text-xl); line-height: 1.02; margin: 0; max-width: 12ch; }
    .section-head p { color: var(--color-text-muted); max-width: 60ch; margin: 0; }
    .services-grid, .results-grid, .process-grid, .pricing-grid { display: grid; gap: var(--space-4); }
    .card { padding: var(--space-6); border-radius: var(--radius-lg); background: var(--color-surface); border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); box-shadow: var(--shadow-sm); }
    .card h3 { margin: 0 0 var(--space-3); font-size: var(--text-lg); line-height: 1.15; }
    .card p { margin: 0; color: var(--color-text-muted); }
    .split-section { display: grid; gap: var(--space-8); align-items: start; }
    .proof-panel { padding: var(--space-8); border-radius: var(--radius-xl); background: var(--color-surface); border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); box-shadow: var(--shadow-md); }
    .proof-list { list-style: none; padding: 0; margin: var(--space-5) 0 0; display: grid; gap: var(--space-4); }
    .proof-list li { padding-bottom: var(--space-4); border-bottom: 1px solid var(--color-divider); }
    .proof-list li:last-child { border-bottom: none; padding-bottom: 0; }
    .result-item strong { display: block; font-size: var(--text-xl); margin-bottom: var(--space-2); }
    .pricing-card.featured { background: linear-gradient(180deg, color-mix(in srgb, var(--color-primary-highlight) 65%, var(--color-surface-2)), var(--color-surface)); }
    .price { font-size: var(--text-xl); font-weight: 800; margin: var(--space-3) 0; }
    .pricing-card ul, .proof-panel ul { margin: var(--space-4) 0 0; padding-left: 1.2rem; color: var(--color-text-muted); }
    .cta-band { padding: var(--space-8); border-radius: var(--radius-xl); background: var(--color-text); color: var(--color-text-inverse); display: grid; gap: var(--space-5); }
    .cta-band p { color: color-mix(in srgb, var(--color-text-inverse) 76%, transparent); margin: 0; max-width: 52ch; }
    .site-footer { padding: var(--space-8) 0 var(--space-10); color: var(--color-text-muted); }
    .footer-inner { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding-top: var(--space-6); border-top: 1px solid var(--color-divider); }
    .tag { display: inline-flex; align-items: center; padding: 0.35rem 0.7rem; border-radius: 999px; background: var(--color-accent-soft); color: var(--color-accent); font-weight: 700; font-size: var(--text-xs); }
    @media (min-width: 840px) {
      .hero-grid, .split-section { grid-template-columns: 1.1fr 0.9fr; }
      .services-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .results-grid, .pricing-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .process-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
      .section-head { grid-template-columns: 0.9fr 1.1fr; align-items: end; }
    }
    @media (max-width: 839px) {
      .nav-links { display: none; }
      .header-inner { align-items: flex-start; }
      .stat-row { grid-template-columns: 1fr; }
      .hero-copy h1 { max-width: 11ch; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
    }

/* ---- Additional styles for interior pages ---- */
.page-hero { padding: clamp(var(--space-12), 7vw, var(--space-20)) 0 var(--space-12); }
.page-hero h1 { margin: var(--space-4) 0 var(--space-4); font-family: var(--font-display); font-size: var(--text-2xl); line-height: 0.98; letter-spacing: -0.03em; max-width: 16ch; }
.page-hero p { max-width: 60ch; color: var(--color-text-muted); font-size: var(--text-lg); }
.prose { max-width: 70ch; }
.prose h2 { font-family: var(--font-display); font-size: var(--text-xl); line-height: 1.05; margin: var(--space-10) 0 var(--space-4); }
.prose h3 { font-size: var(--text-lg); margin: var(--space-6) 0 var(--space-3); }
.prose p { color: var(--color-text-muted); margin: 0 0 var(--space-4); }
.prose ul { color: var(--color-text-muted); padding-left: 1.2rem; margin: 0 0 var(--space-4); display: grid; gap: var(--space-2); }
.breadcrumb { font-size: var(--text-sm); color: var(--color-text-faint); display: flex; gap: var(--space-2); align-items: center; }
.breadcrumb a:hover { color: var(--color-text); }
.faq-list { display: grid; gap: var(--space-3); margin-top: var(--space-6); }
.faq-item { border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-sm); overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: var(--space-5) var(--space-6); font-weight: 700; font-size: var(--text-base); display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--color-primary); transition: transform var(--transition); }
.faq-item[open] summary::after { content: '\2013'; }
.faq-item .faq-body { padding: 0 var(--space-6) var(--space-5); color: var(--color-text-muted); }
.form-grid { display: grid; gap: var(--space-4); margin-top: var(--space-6); max-width: 640px; }
.form-field { display: grid; gap: var(--space-2); }
.form-field label { font-weight: 600; font-size: var(--text-sm); }
.form-field input, .form-field textarea, .form-field select { font: inherit; padding: 0.8rem 1rem; border-radius: var(--radius-md); border: 1px solid var(--color-border); background: var(--color-surface-2); color: var(--color-text); }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.contact-grid { display: grid; gap: var(--space-8); }
.contact-methods { display: grid; gap: var(--space-4); }
.contact-method { padding: var(--space-5); border-radius: var(--radius-lg); background: var(--color-surface); border: 1px solid color-mix(in srgb, var(--color-text) 10%, transparent); box-shadow: var(--shadow-sm); }
.contact-method strong { display: block; margin-bottom: var(--space-1); }
.contact-method a { color: var(--color-primary); font-weight: 600; }
.feature-list { list-style: none; padding: 0; margin: var(--space-5) 0 0; display: grid; gap: var(--space-3); }
.feature-list li { padding-left: 1.8rem; position: relative; color: var(--color-text-muted); }
.feature-list li::before { content: '\2713'; position: absolute; left: 0; color: var(--color-primary); font-weight: 800; }
@media (min-width: 840px) {
  .contact-grid { grid-template-columns: 1.2fr 0.8fr; }
}