/* ========================================
   My Hydrogen Protocol — Styles v2
   Blue-dominant multi-page site
   March 2026
   ======================================== */

@import url('chl-tokens-v2.css');
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,400&family=Outfit:wght@200;300;400;500;600;700&display=swap');

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--charcoal);
  background: var(--white);
  overflow-x: hidden;
}
img, picture { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }
a { color: var(--blue-500); text-decoration: none; transition: color var(--duration-fast) var(--ease-default); }
a:hover { color: var(--blue-400); }

/* === SKIP LINK === */
.skip-link {
  position: absolute; top: -100px; left: 16px;
  background: var(--blue-600); color: var(--white);
  padding: 8px 16px; border-radius: 0 0 8px 8px;
  font-size: 14px; font-weight: 500; text-decoration: none; z-index: 9999;
  transition: top var(--duration-fast);
}
.skip-link:focus { top: 0; color: var(--white); }

/* === LAYOUT === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: var(--content-width); margin: 0 auto; padding: 0 24px; }

/* === TYPOGRAPHY === */
.section-label {
  display: inline-block; font-family: var(--font-body); font-weight: 600;
  font-size: var(--text-label); letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--blue-500); margin-bottom: var(--space-4);
}
.section-label--light { color: var(--blue-300); }
.section-label--amber { color: var(--amber-600); }
.section-title {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 44px);
  font-weight: 400; color: var(--blue-700); line-height: 1.2; margin-bottom: 20px;
}
.section-title--light { color: var(--white); }
.section-body { font-size: 16px; font-weight: 300; color: var(--gray-600); line-height: 1.8; }
.section-body--light { color: rgba(255,255,255,0.85); }
.section-cta-row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; align-items: center; }

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-weight: 500; font-size: 15px;
  padding: 14px 32px; border-radius: var(--radius-pill); border: none; cursor: pointer;
  transition: all var(--duration-med) var(--ease-default);
  text-decoration: none; letter-spacing: 0.3px; line-height: 1;
}
.btn--amber { background: var(--amber-600); color: var(--white); }
.btn--amber:hover { background: var(--amber-500); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-cta); }
.btn--blue { background: var(--blue-600); color: var(--white); }
.btn--blue:hover { background: var(--blue-500); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn--blue-outline { background: transparent; color: var(--blue-600); border: 1.5px solid var(--blue-400); }
.btn--blue-outline:hover { background: var(--blue-50); color: var(--blue-600); transform: translateY(-2px); }
.btn--white { background: var(--white); color: var(--blue-700); }
.btn--white:hover { background: var(--cream); color: var(--blue-600); transform: translateY(-2px); }
.btn--outline-white { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.4); }
.btn--outline-white:hover { background: rgba(255,255,255,0.1); color: var(--white); }
.btn--sm { padding: 10px 24px; font-size: 13px; }
.btn--lg { padding: 18px 48px; font-size: 17px; }

/* === ANIMATIONS === */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease-default), transform 0.6s var(--ease-default); }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

/* ========================================
   NAVIGATION
   ======================================== */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 0 24px;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(11,93,184,0.06);
  transition: background var(--duration-med) var(--ease-default), box-shadow var(--duration-med) var(--ease-default), border-color var(--duration-med) var(--ease-default);
}
.site-nav.scrolled { box-shadow: var(--shadow-md); }
/* Homepage: transparent over hero */
.site-nav.nav--transparent { background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; border-bottom-color: transparent; box-shadow: none; }
.site-nav.nav--transparent .nav-brand-text { color: var(--blue-700); }
.site-nav.nav--transparent .nav-link { color: var(--gray-600); }
.site-nav.nav--transparent.scrolled {
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(11,93,184,0.06); box-shadow: var(--shadow-md);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; max-width: var(--max-width); margin: 0 auto;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; gap: 10px; flex-shrink: 0; }
.nav-logo-img { height: 44px; width: auto; mix-blend-mode: multiply; }
.nav-brand-text {
  font-family: var(--font-body); font-size: 17px; font-weight: 600;
  color: var(--blue-700); letter-spacing: -0.2px;
}
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-link {
  display: block; padding: 8px 14px; color: var(--gray-600); text-decoration: none;
  font-size: 15px; font-weight: 400; border-radius: var(--radius-sm); white-space: nowrap;
  transition: color var(--duration-fast) var(--ease-default), background var(--duration-fast) var(--ease-default);
}
.nav-link:hover { color: var(--blue-600); background: var(--blue-50); }
.nav-link.active { color: var(--blue-600); font-weight: 500; }
.nav-cta {
  display: inline-flex; align-items: center; margin-left: 8px;
  padding: 10px 24px; background: var(--amber-600); color: var(--white) !important;
  text-decoration: none; font-size: 14px; font-weight: 500; border-radius: var(--radius-pill);
  transition: background var(--duration-fast), transform var(--duration-fast), box-shadow var(--duration-fast);
}
.nav-cta:hover { background: var(--amber-500); transform: translateY(-1px); box-shadow: var(--shadow-cta); }
/* Hamburger */
.nav-hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px; border-radius: 8px;
  transition: background var(--duration-fast); z-index: 101;
}
.nav-hamburger:hover { background: rgba(11,93,184,0.06); }
.nav-hamburger span {
  display: block; width: 24px; height: 2px; background: var(--blue-700);
  border-radius: 2px; transition: transform var(--duration-med), opacity var(--duration-fast);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
/* Mobile menu overlay */
/* When mobile menu is open, strip backdrop-filter from nav to fix
   Mobile Safari containing-block bug (backdrop-filter makes fixed children
   position relative to the nav element instead of the viewport). */
.site-nav.nav--menu-open {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.nav-mobile {
  display: none; position: fixed; inset: 0;
  background: rgba(1,30,74,0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  z-index: 99; padding: 100px 24px 48px; flex-direction: column;
  align-items: center; justify-content: center; gap: 8px; overflow-y: auto;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link {
  font-size: 20px; color: #ffffff; font-family: var(--font-body);
  font-weight: 400; padding: 12px 24px; width: 100%; text-align: center;
}
.nav-mobile .nav-link:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.nav-mobile .nav-link.active { color: var(--blue-300); }
.nav-mobile .nav-cta { margin: 24px 0 0; padding: 16px 40px; font-size: 18px; }
.nav-mobile .nav-divider {
  width: 60px; height: 1px; background: rgba(255,255,255,0.2); margin: 16px 0;
}
.nav-mobile .nav-link--secondary { font-size: 16px; opacity: 0.75; font-family: var(--font-body); }

/* ========================================
   HOMEPAGE HERO — Light Background
   ======================================== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  justify-content: center; background: var(--white); overflow: hidden;
  padding: 120px 24px var(--space-24);
}
.hero::before {
  content: ''; position: absolute; top: 5%; left: 50%; transform: translateX(-50%);
  width: 500px; height: 500px; background: radial-gradient(circle, var(--white) 30%, transparent 70%);
  z-index: 1; pointer-events: none;
}
.hero__blobs { position: absolute; inset: 0; pointer-events: none; }
.hero__blob { position: absolute; border-radius: 50%; }
.hero__blob--1 { width: 700px; height: 700px; background: radial-gradient(circle, var(--blue-100) 0%, transparent 70%); top: -30%; right: -25%; opacity: 0.8; }
.hero__blob--2 { width: 600px; height: 600px; background: radial-gradient(circle, var(--blue-100) 0%, transparent 70%); bottom: -25%; left: -20%; opacity: 0.7; }
.hero__blob--3 { width: 400px; height: 400px; background: radial-gradient(circle, var(--green-100) 0%, transparent 70%); bottom: 0; right: -5%; opacity: 0.5; }
.hero__inner { position: relative; z-index: 2; text-align: center; max-width: 780px; margin: 0 auto; }
.hero__logo { width: 110px; height: 110px; margin: 0 auto 40px; mix-blend-mode: multiply; opacity: 0; animation: fadeUp 0.8s var(--ease-default) 0.2s forwards; }
.hero__headline {
  font-family: var(--font-display); font-weight: 300; font-size: var(--text-display);
  line-height: 1.08; color: var(--blue-700); margin-bottom: var(--space-6);
  opacity: 0; animation: fadeUp 0.8s var(--ease-default) 0.4s forwards;
}
.hero__subtitle {
  font-weight: 300; font-size: clamp(16px, 2.2vw, 20px); color: var(--gray-600);
  line-height: 1.6; margin-bottom: var(--space-5);
  opacity: 0; animation: fadeUp 0.8s var(--ease-default) 0.6s forwards;
}
.hero__tagline {
  font-weight: 400; font-size: clamp(15px, 1.8vw, 18px); color: var(--amber-600);
  margin-bottom: 40px; opacity: 0; animation: fadeUp 0.8s var(--ease-default) 0.7s forwards;
}
.hero__cta-group {
  opacity: 0; animation: fadeUp 0.8s var(--ease-default) 0.8s forwards;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.hero__sub-cta { font-size: 13px; color: var(--gray-500); }

/* ========================================
   SUBPAGE HERO (.page-hero)
   ======================================== */
.page-hero {
  background: linear-gradient(180deg, var(--blue-50) 0%, var(--white) 100%);
  padding: 160px 24px 80px; text-align: center; position: relative; overflow: hidden;
}
.page-hero h1 {
  font-family: var(--font-display); font-size: clamp(32px, 5vw, 56px);
  font-weight: 400; color: var(--blue-700); line-height: 1.15; margin-bottom: 16px;
}
.page-hero .sub {
  font-size: 16px; font-weight: 300; color: var(--gray-600);
  line-height: 1.7; max-width: 560px; margin: 0 auto;
}
.page-hero .hero__blob { position: absolute; border-radius: 50%; }
.page-hero .hero__blob--1 { width: 400px; height: 400px; background: radial-gradient(circle, var(--blue-100) 0%, transparent 70%); top: -30%; right: -10%; opacity: 0.5; }
.page-hero .hero__blob--2 { width: 300px; height: 300px; background: radial-gradient(circle, var(--green-100) 0%, transparent 70%); bottom: -30%; left: -5%; opacity: 0.4; }

/* === BREADCRUMB === */
.breadcrumb { font-size: 12px; color: var(--gray-500); margin-bottom: 20px; }
.breadcrumb a { color: var(--blue-500); text-decoration: none; }
.breadcrumb a:hover { color: var(--blue-400); }
.breadcrumb span { margin: 0 6px; }

/* ========================================
   SOCIAL PROOF BAR
   ======================================== */
.proof-bar { background: var(--blue-50); padding: 32px 24px; }
.proof-bar-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px; max-width: var(--max-width); margin: 0 auto;
}
.proof-bar-item { display: flex; align-items: flex-start; gap: 12px; }
.proof-bar-check {
  flex-shrink: 0; width: 20px; height: 20px; background: var(--blue-600);
  border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-top: 2px;
}
.proof-bar-check svg { width: 11px; height: 11px; }
.proof-bar-text { font-size: 14px; font-weight: 300; color: var(--gray-600); line-height: 1.5; }

/* ========================================
   SECTION SHARED
   ======================================== */
.section { padding: 96px 24px; }
.section--cream { background: var(--cream); }
.section--blue-light { background: var(--blue-50); }
.section--white { background: var(--white); }
.section--dark { background: var(--section-dark); color: var(--white); }
.section--dark .section-label { color: var(--amber-400); }
.section--dark .section-title { color: var(--white); }
.section--dark .section-body { color: rgba(255,255,255,0.85); }

/* ========================================
   PILLAR CARDS
   ======================================== */
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.pillar-card {
  text-align: center; padding: 40px 24px; background: var(--white);
  border-radius: var(--radius-lg); border: 1px solid rgba(11,93,184,0.06);
  border-top: 4px solid transparent;
  transition: transform var(--duration-med), box-shadow var(--duration-med);
}
.pillar-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pillar-card--water { border-top-color: var(--blue-600); }
.pillar-card--nutrition { border-top-color: var(--green-600); }
.pillar-card--movement { border-top-color: var(--amber-600); }
.pillar-icon { width: 80px; height: 80px; margin: 0 auto 24px; }
.pillar-name { font-size: 18px; font-weight: 600; color: var(--blue-700); margin-bottom: 12px; }
.pillar-desc { font-size: 14px; font-weight: 300; color: var(--gray-600); line-height: 1.7; margin-bottom: 16px; }
.pillar-link { font-size: 13px; color: var(--blue-500); text-decoration: none; font-weight: 500; }
.pillar-link:hover { color: var(--blue-700); text-decoration: underline; }

/* ========================================
   FEATURE LIST (What You Get)
   ======================================== */
.feature-list { margin-top: 32px; }
.feature-item {
  display: flex; align-items: flex-start; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid rgba(11,93,184,0.06);
}
.feature-item:last-child { border-bottom: none; }
.feature-check {
  flex-shrink: 0; width: 26px; height: 26px; background: var(--blue-50);
  border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-top: 2px;
}
.feature-check svg { width: 13px; height: 13px; }
.feature-name { font-size: 15px; font-weight: 500; color: var(--charcoal); }
.feature-detail { font-size: 13px; font-weight: 300; color: var(--gray-500); margin-top: 3px; line-height: 1.5; }

/* ========================================
   CALLOUT BOX
   ======================================== */
.callout { border-radius: var(--radius-md); padding: 32px 36px; margin: 24px 0; }
.callout--blue { background: var(--blue-50); border-left: 4px solid var(--blue-600); }
.callout--amber { background: var(--amber-50); border-left: 4px solid var(--amber-600); }
.callout--teal { background: #EBF4F1; border-left: 4px solid var(--teal-600); }
.callout p { font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.7; margin-bottom: 12px; }
.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--charcoal); font-weight: 500; }

/* ========================================
   PRICING BLOCK
   ======================================== */
.pricing-block {
  background: var(--section-dark); border-radius: var(--radius-xl);
  padding: 64px 48px; text-align: center; color: var(--white);
}
.price-compare { display: flex; align-items: center; justify-content: center; gap: 32px; flex-wrap: wrap; margin: 32px 0; }
.price-old { font-family: var(--font-display); font-size: 48px; color: var(--blue-300); opacity: 0.5; text-decoration: line-through; }
.price-arrow { font-size: 28px; color: var(--amber-400); }
.price-new { font-family: var(--font-display); font-size: 72px; font-weight: 600; color: var(--amber-400); line-height: 1; }
.price-sub { font-size: 14px; color: rgba(255,255,255,0.7); font-weight: 300; margin-top: 8px; }
.price-includes { list-style: none; display: flex; flex-direction: column; gap: 8px; margin: 32px auto; max-width: 440px; text-align: left; }
.price-includes li {
  display: flex; align-items: flex-start; gap: 12px; font-size: 15px;
  font-weight: 300; color: rgba(255,255,255,0.85); line-height: 1.5;
}
.price-includes li::before {
  content: ''; flex-shrink: 0; width: 18px; height: 18px; background: var(--blue-600);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='white' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center; margin-top: 3px;
}

/* ========================================
   FAQ ACCORDION
   ======================================== */
.faq-list { max-width: var(--content-width); }
.faq-item { border-bottom: 1px solid var(--gray-200); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center; width: 100%;
  padding: 22px 0; background: none; border: none; cursor: pointer;
  font-size: 16px; font-weight: 500; color: var(--charcoal); text-align: left;
  font-family: var(--font-body); line-height: 1.4; gap: 16px;
  transition: color var(--duration-fast);
}
.faq-q:hover { color: var(--blue-600); }
.faq-q-text { flex: 1; }
.faq-icon {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--blue-50);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--duration-med) var(--ease-default), background var(--duration-fast);
}
.faq-icon svg { width: 12px; height: 12px; }
.faq-item[aria-expanded="true"] .faq-icon { transform: rotate(45deg); background: var(--blue-600); }
.faq-item[aria-expanded="true"] .faq-icon svg path { stroke: var(--white); }
.faq-a { overflow: hidden; max-height: 0; transition: max-height var(--duration-slow) var(--ease-default); }
.faq-item[aria-expanded="true"] .faq-a { max-height: 800px; }
.faq-a-inner { padding: 0 0 24px; font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.8; }
.faq-a-inner a { color: var(--blue-500); font-weight: 400; }
.faq-a-inner a:hover { text-decoration: underline; }

/* ========================================
   EQUIPMENT CARD
   ======================================== */
.equipment-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid rgba(11,93,184,0.08); margin-bottom: 24px;
  transition: box-shadow var(--duration-med);
}
.equipment-card:hover { box-shadow: var(--shadow-md); }
.equipment-card-header {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 24px; margin-bottom: 16px; flex-wrap: wrap;
}
.equipment-name { font-size: 20px; font-weight: 600; color: var(--blue-700); }
.equipment-cost { font-family: var(--font-display); font-size: 22px; color: var(--blue-600); white-space: nowrap; }
.equipment-detail { font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.75; margin-bottom: 12px; }
.affiliate-box {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-top: 20px; padding: 16px 20px; background: var(--amber-50); border-radius: var(--radius-sm);
}
.affiliate-box a { display: inline-flex; align-items: center; gap: 6px; color: var(--blue-600); font-weight: 500; font-size: 14px; text-decoration: none; }
.affiliate-box a:hover { color: var(--blue-700); text-decoration: underline; }
.discount-code {
  font-family: var(--font-mono, monospace); font-size: 13px; background: var(--amber-100);
  color: var(--amber-800); padding: 4px 10px; border-radius: 6px; font-weight: 600; border: 1px solid var(--amber-200);
}

/* Investment table */
.investment-table { width: 100%; border-collapse: collapse; border-radius: var(--radius-md); overflow: hidden; margin: 24px 0; box-shadow: var(--shadow-sm); }
.investment-table thead { background: var(--blue-50); }
.investment-table th { text-align: left; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 1.5px; color: var(--gray-500); padding: 14px 20px; }
.investment-table td { padding: 16px 20px; font-size: 15px; font-weight: 300; color: var(--gray-600); border-top: 1px solid var(--gray-100); }
.investment-table th:last-child, .investment-table td:last-child { text-align: right; }
.investment-table tr.total td { font-weight: 600; color: var(--blue-700); border-top: 2px solid var(--gray-200); }

/* ========================================
   ABOUT SNIPPET
   ======================================== */
.about-snippet { display: flex; gap: 40px; align-items: center; max-width: 760px; margin: 40px auto 0; }
.about-photo {
  flex-shrink: 0; width: 180px; height: 220px; border-radius: 12px; overflow: hidden;
  background: var(--blue-100); border: 3px solid var(--blue-200);
  display: flex; align-items: center; justify-content: center;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.about-placeholder-icon { font-size: 48px; color: var(--blue-400); line-height: 1; }
.about-text .name { font-family: var(--font-display); font-size: 24px; color: var(--blue-700); margin-bottom: 4px; }
.about-text .title { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--blue-400); font-weight: 500; margin-bottom: 12px; }
.about-text p { font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.7; margin-bottom: 12px; }

/* ========================================
   ARTICLE / LONG-FORM CONTENT
   ======================================== */
.article-wrap { display: grid; grid-template-columns: 1fr 240px; gap: 64px; align-items: start; max-width: 1040px; margin: 0 auto; }
.article { max-width: 700px; margin: 0 auto; }
.article h2 {
  font-family: var(--font-body); font-weight: 500; font-size: clamp(22px, 3vw, 28px);
  color: var(--blue-700); margin-top: 64px; margin-bottom: 24px; line-height: 1.25;
  scroll-margin-top: 100px;
}
.article h3 { font-family: var(--font-body); font-weight: 500; font-size: clamp(17px, 2vw, 20px); color: var(--blue-700); margin-top: 40px; margin-bottom: 16px; line-height: 1.3; }
.article p { margin-bottom: 28px; font-size: 16px; font-weight: 300; color: var(--gray-600); line-height: 1.9; }
.article a { color: var(--blue-500); font-weight: 400; text-decoration: underline; text-underline-offset: 2px; }
.article a:hover { color: var(--blue-400); }
.article ul, .article ol { padding-left: 36px; margin-bottom: 28px; }
.article li { font-size: 16px; font-weight: 300; color: var(--gray-600); line-height: 1.8; margin-bottom: 12px; }
.article li strong { color: var(--charcoal); font-weight: 500; }
.article blockquote {
  margin: 24px 0; padding: 20px 24px; border-left: 4px solid var(--blue-400);
  background: var(--blue-50); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 15px; color: var(--gray-600); line-height: 1.7;
}
.article blockquote p { color: inherit; margin-bottom: 12px; }
.article blockquote p:last-child { margin-bottom: 0; }
.article strong { font-weight: 500; }
.article table { width: 100%; border-collapse: collapse; border-radius: var(--radius-sm); overflow: hidden; margin: 24px 0; }
.article th { padding: 12px 16px; text-align: left; font-weight: 500; color: var(--blue-700); background: var(--blue-50); }
.article td { padding: 12px 16px; border-top: 1px solid var(--gray-200); }

/* Article references */
.article-refs { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--gray-200); }
.article-refs h2 { font-size: 20px; font-weight: 600; color: var(--charcoal); margin-bottom: 16px; font-family: var(--font-body); margin-top: 0; }
.article-refs ol { padding-left: 20px; }
.article-refs li { font-size: 13px; color: var(--gray-500); line-height: 1.6; margin-bottom: 8px; font-style: italic; }

/* ========================================
   TOC SIDEBAR
   ======================================== */
.toc {
  position: sticky; top: 100px; background: var(--white); border-radius: var(--radius-sm);
  padding: 24px; border: 1px solid rgba(11,93,184,0.06); box-shadow: var(--shadow-sm);
}
.toc-title { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--blue-500); margin-bottom: 16px; }
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 4px; }
.toc-list a {
  font-size: 13px; color: var(--gray-600); text-decoration: none; display: block;
  padding: 6px 8px; border-radius: 6px; font-weight: 400; line-height: 1.4;
  transition: color var(--duration-fast), background var(--duration-fast);
}
.toc-list a:hover { color: var(--blue-600); background: var(--blue-50); }
.toc-list a.active { color: var(--blue-600); font-weight: 500; background: var(--blue-50); }

/* Guide layout */
.guide-layout { display: grid; grid-template-columns: 250px 1fr; gap: 64px; align-items: start; max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* ========================================
   CONTACT FORM
   ======================================== */
.contact-form--card {
  background: var(--white); box-shadow: var(--shadow-lg); border-radius: var(--radius-xl);
  padding: 40px; max-width: 640px;
}
.form-group { margin-bottom: 24px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--charcoal); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; }
.form-control {
  width: 100%; padding: 14px 18px; border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
  font-size: 15px; font-family: var(--font-body); font-weight: 300; color: var(--charcoal);
  background: var(--white); transition: border-color var(--duration-fast), box-shadow var(--duration-fast); outline: none;
}
.form-control:focus { border-color: var(--blue-400); box-shadow: 0 0 0 3px rgba(42,157,201,0.15); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 140px; }
.form-success { display: none; background: var(--green-50); border: 1px solid var(--green-400); border-radius: var(--radius-sm); padding: 20px 24px; font-size: 15px; color: var(--green-600); }
.form-success.show { display: block; }

/* ========================================
   FOR PROFESSIONALS
   ======================================== */
.pro-section { margin-bottom: 40px; }
.pro-section h2 { font-size: 18px; font-weight: 600; color: var(--blue-700); padding-bottom: 12px; border-bottom: 2px solid var(--blue-100); margin-bottom: 20px; }
.pro-section h3 { font-size: 15px; font-weight: 600; color: var(--charcoal); margin: 20px 0 8px; }
.pro-section p, .pro-section li { font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.75; }
.pro-section ul { padding-left: 20px; margin-top: 8px; }
.pro-section li { margin-bottom: 6px; }
.clinical-note {
  background: var(--amber-50); border-left: 4px solid var(--amber-600);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 16px 20px;
  margin: 16px 0; font-size: 14px; color: var(--gray-600); line-height: 1.7;
}

/* ========================================
   CONSENT PAGE
   ======================================== */
.consent-page { max-width: 640px; margin: 0 auto; padding: 120px 24px 80px; text-align: center; }
.consent-page__logo { width: 80px; height: 80px; margin: 0 auto 32px; mix-blend-mode: multiply; }
.consent-page__card { background: var(--white); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); padding: 40px; text-align: left; }
.consent-page__card h1 { font-family: var(--font-display); font-size: 28px; font-weight: 400; color: var(--blue-700); margin-bottom: 16px; text-align: center; }
.consent-page__card p { font-size: 15px; font-weight: 300; color: var(--gray-600); line-height: 1.7; margin-bottom: 16px; }
.consent-page__embed { margin-top: 24px; min-height: 400px; border-radius: var(--radius-sm); overflow: hidden; }
.consent-page__embed iframe { width: 100%; min-height: 400px; border: none; }

/* ========================================
   404 PAGE
   ======================================== */
.error-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 24px; }
.error-page__code { font-family: var(--font-display); font-size: clamp(80px, 15vw, 160px); color: var(--blue-200); line-height: 1; margin-bottom: 16px; }
.error-page__title { font-weight: 500; font-size: var(--text-h1); color: var(--blue-700); margin-bottom: 16px; }
.error-page__text { color: var(--gray-600); margin-bottom: 32px; }
.error-page__links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.error-page__links a { color: var(--blue-500); font-size: 16px; }

/* ========================================
   DISCLAIMER
   ======================================== */
.disclaimer-box { background: var(--cream); border-top: 1px solid var(--gray-200); padding: 32px 24px; }
.disclaimer-text { font-size: 13px; color: var(--gray-500); line-height: 1.7; font-weight: 300; max-width: var(--max-width); margin: 0 auto; }

/* ========================================
   LINK ARROW
   ======================================== */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px; color: var(--blue-500);
  font-weight: 500; font-size: 14px; text-decoration: none;
  transition: color var(--duration-fast);
}
.link-arrow:hover { color: var(--blue-700); }
.link-arrow::after { content: '\2192'; display: inline-block; transition: transform var(--duration-fast) var(--ease-default); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ========================================
   FOOTER
   ======================================== */
footer {
  background: var(--blue-950); padding: 64px 24px 40px;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-top {
  display: grid; grid-template-columns: 1fr 2fr; gap: 64px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand-logo { height: 44px; width: auto; margin-bottom: 16px; }
.footer-brand-text { font-family: var(--font-body); font-size: 20px; font-weight: 600; color: var(--white); margin-bottom: 8px; }
.footer-tagline { font-size: 13px; font-weight: 300; color: var(--gray-500); line-height: 1.6; margin-bottom: 20px; }
.footer-social a { display: inline-flex; align-items: center; gap: 8px; color: var(--gray-400); text-decoration: none; font-size: 13px; transition: color var(--duration-fast); }
.footer-social a:hover { color: var(--blue-300); }
.footer-nav-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-nav-group h4 { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--gray-500); margin-bottom: 16px; }
.footer-nav-group ul { list-style: none; }
.footer-nav-group li { margin-bottom: 10px; }
.footer-nav-group a { color: var(--gray-400); text-decoration: none; font-size: 14px; font-weight: 300; transition: color var(--duration-fast); }
.footer-nav-group a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 32px; display: flex; justify-content: space-between;
  align-items: flex-start; gap: 24px; flex-wrap: wrap;
}
.footer-disclaimer { font-size: 12px; font-weight: 300; color: var(--gray-500); line-height: 1.7; max-width: 640px; }
.footer-legal { display: flex; gap: 24px; flex-shrink: 0; }
.footer-legal a { font-size: 12px; color: var(--gray-500); text-decoration: none; transition: color var(--duration-fast); }
.footer-legal a:hover { color: var(--gray-300); }
.footer-copy { font-size: 12px; color: var(--gray-500); margin-top: 12px; }

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
  .site-nav, .nav-mobile, footer, .disclaimer-box, .proof-bar, .btn, .nav-cta, .skip-link, .hero__blobs { display: none !important; }
  body { font-size: 12pt; color: #000; background: #fff; }
  .page-hero { background: none !important; padding: 24px 0; }
  .page-hero h1 { color: #000; }
  .section { padding: 24px 0; background: none !important; }
  a { color: #000; text-decoration: underline; }
  .toc { display: none; }
}

/* ========================================
   HOMEPAGE LAYOUT HELPERS
   ======================================== */
.features-pricing-grid {
  display: grid; grid-template-columns: 1fr 380px; gap: 64px; align-items: start;
}
.sticky-card { position: sticky; top: 100px; }
.container--mid { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.container--cta { max-width: 680px; margin: 0 auto; padding: 0 24px; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .article-wrap { grid-template-columns: 1fr; }
  .guide-layout { grid-template-columns: 1fr; gap: 0; }
  .guide-layout .toc { position: static; margin-bottom: 32px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .features-pricing-grid { grid-template-columns: 1fr; gap: 40px; }
  .sticky-card { position: static; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-inner > .nav-cta { display: none; }
  .pillars-grid { grid-template-columns: 1fr; gap: 20px; }
  .article-wrap { grid-template-columns: 1fr; }
  .toc { display: none; }
  .footer-nav-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }
  .price-compare { flex-direction: column; gap: 12px; }
  .equipment-card-header { flex-direction: column; }
  .section { padding: 64px 24px; }
  .pricing-block { padding: 40px 24px; }
  .hero { padding: 130px 24px 64px; min-height: auto; }
  .hero__blob--1 { width: 300px; height: 300px; }
  .hero__blob--2 { width: 250px; height: 250px; }
  .hero__blob--3 { width: 180px; height: 180px; }
  .about-snippet { flex-direction: column; text-align: center; }
  .contact-form--card { padding: 24px; border-radius: var(--radius-md); }
  .page-hero { padding: 130px 24px 48px; }
  .hero .btn--lg { width: 100%; }
  .features-pricing-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .footer-nav-grid { grid-template-columns: 1fr; }
  .section-cta-row { flex-direction: column; }
  .btn--lg { padding: 16px 32px; font-size: 16px; }
}

/* === UTILITIES === */
.text-center { text-align: center; }
.text-muted { color: var(--gray-500); font-weight: 300; font-size: 14px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }