/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --navy: #16213e;
  --navy-dark: #111a30;
  --teal: #5dcaa5;
  --teal-dark: #04342c;
  --teal-medium: #0f6e56;
  --teal-light: #e1f5ee;
  --gold: #fec751;
  --gold-dark: #3d2e00;
  --gold-light: #fef9eb;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --card-border: #e0e4ea;
  --text: #4a5568;
  --heading: #16213e;
  --muted: #6b7a8d;
  --light-muted: #8899b8;
  --nav-inactive: #b0b8d0;
  --subtitle: #7a8bb5;
  --footer-divider: #2a3a5e;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(22,33,62,0.08);
  --shadow-md: 0 4px 16px rgba(22,33,62,0.12);
}

/* ============================================================
   Reset and base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--teal-medium); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
  color: var(--heading);
  line-height: 1.3;
  font-weight: 500;
}

h1 { font-size: 28px; }
h2 { font-size: 18px; }

/* ============================================================
   Layout utilities
   ============================================================ */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
  line-height: 1.2;
}
.btn:hover { opacity: 0.88; text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--gold { background: var(--gold); color: var(--gold-dark); border-color: var(--gold); }
.btn--teal { background: var(--teal); color: var(--teal-dark); border-color: var(--teal); }
.btn--navy { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn--outline-teal { background: transparent; color: var(--teal); border-color: var(--teal); }
.btn--sm { padding: 8px 16px; font-size: 13px; }
.btn--full { width: 100%; text-align: center; }

.link-btn {
  background: none;
  border: none;
  color: var(--teal-medium);
  cursor: pointer;
  font-size: inherit;
  padding: 0;
  text-decoration: underline;
}

/* ============================================================
   Icons
   ============================================================ */
.icon { width: 18px; height: 18px; flex-shrink: 0; }
.icon--lg { width: 24px; height: 24px; }

/* ============================================================
   Top contact bar
   ============================================================ */
.top-bar {
  background: var(--navy-dark);
  color: var(--light-muted);
  font-size: 13px;
  padding: 8px 0;
}
.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.top-bar__left { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.top-bar__right { display: flex; align-items: center; gap: 8px; white-space: nowrap; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--light-muted);
  text-decoration: none;
}
.contact-item:hover { color: var(--teal); text-decoration: none; }

/* ============================================================
   Main header
   ============================================================ */
.main-header {
  background: var(--navy);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.main-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-link:hover { text-decoration: none; opacity: 0.9; }

.brand-logo { height: 48px; width: auto; }

.brand-text { display: flex; flex-direction: column; }
.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.brand-tagline {
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  color: var(--nav-inactive);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); text-decoration: none; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
}
.hamburger__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.hamburger.is-open .hamburger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open .hamburger__bar:nth-child(2) { opacity: 0; }
.hamburger.is-open .hamburger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero (homepage)
   ============================================================ */
.hero {
  background: var(--navy);
  padding: 64px 0;
}
.hero__inner { max-width: 640px; }
.hero__title {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}
.hero__desc {
  color: var(--subtitle);
  font-size: 16px;
  margin-bottom: 28px;
  max-width: 540px;
}
.hero__buttons { display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   Ordering / CTA banners
   ============================================================ */
.ordering-banner {
  background: var(--gold);
  padding: 14px 0;
}
.ordering-banner__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--gold-dark);
  font-size: 15px;
  font-weight: 500;
  flex-wrap: wrap;
}
.ordering-banner__inner a { color: var(--gold-dark); font-weight: 700; }
.ordering-banner__inner .icon { color: var(--gold-dark); }

/* Global CTA banner (above footer) */
.cta-banner {
  background: var(--gold);
  padding: 20px 0;
}
.cta-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-banner__text {
  color: var(--gold-dark);
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}
.cta-banner__text a { color: var(--gold-dark); }

/* Product page CTA band */
.cta-band {
  background: var(--gold);
  padding: 20px 0;
}
.cta-band__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-band__text {
  color: var(--gold-dark);
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  flex: 1;
}

/* ============================================================
   Popular protocols section (homepage)
   ============================================================ */
.popular-protocols {
  background: var(--bg);
  padding: 48px 0;
}
.section-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 6px;
}
.section-subtitle {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 28px;
}
.section-cta { margin-top: 32px; text-align: center; }

/* ============================================================
   Product grids
   ============================================================ */
.product-grid {
  display: grid;
  gap: 20px;
}
.product-grid--3 { grid-template-columns: repeat(3, 1fr); }
.product-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   Product card
   ============================================================ */
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: box-shadow 0.15s, transform 0.15s;
}
.product-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.product-card--featured { border-color: var(--teal); border-width: 2px; }

.product-card__badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--teal);
  color: var(--teal-dark);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.product-card__icon {
  width: 44px;
  height: 44px;
  background: var(--teal-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.product-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--teal-medium);
}

.product-card__body { display: flex; flex-direction: column; gap: 8px; flex: 1; }

.product-card__title {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
}
.product-card__title a { color: var(--heading); text-decoration: none; }
.product-card__title a:hover { color: var(--teal-medium); text-decoration: none; }

.product-card__cats { display: flex; gap: 6px; flex-wrap: wrap; }

.product-card__desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  flex: 1;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--card-border);
}
.product-card__price {
  font-size: 18px;
  font-weight: 700;
  color: var(--teal-medium);
}

/* Category pills */
.cat-pill {
  display: inline-block;
  background: var(--teal-light);
  color: var(--teal-medium);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
}

/* ============================================================
   Trust section (homepage)
   ============================================================ */
.trust-section { background: var(--card-bg); padding: 48px 0; border-top: 1px solid var(--card-border); }
.trust-section__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.guarantee-card {
  background: var(--gold-light);
  border: 1px solid #f0e0a0;
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.guarantee-card__icon {
  width: 52px;
  height: 52px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.guarantee-card__icon svg { width: 26px; height: 26px; stroke: var(--gold-dark); }
.guarantee-card__title { font-size: 20px; font-weight: 600; color: var(--heading); margin: 0; }
.guarantee-card__text { color: var(--text); margin: 0; }

.featured-review { display: flex; flex-direction: column; gap: 16px; }
.featured-review__title { font-size: 20px; font-weight: 600; }

/* ============================================================
   Testimonial quotes
   ============================================================ */
.testimonial-quote {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  color: var(--text);
  border-left: 3px solid var(--teal);
  padding: 12px 0 12px 20px;
  margin: 0;
}
.testimonial-quote p { margin: 0 0 8px; }
.testimonial-quote footer {
  font-style: normal;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.testimonial-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }

/* ============================================================
   Home content (below fold)
   ============================================================ */
.home-content { background: var(--bg); padding: 32px 0; }

/* ============================================================
   Page hero (inner pages)
   ============================================================ */
.page-hero {
  background: var(--navy);
  padding: 40px 0;
}
.page-hero__title {
  font-size: 28px;
  font-weight: 600;
  color: #fff;
  margin: 0;
}
.page-hero__subtitle {
  color: var(--subtitle);
  margin: 8px 0 0;
  font-size: 15px;
}

/* ============================================================
   Products browse page
   ============================================================ */
.products-hero {
  background: var(--navy);
  padding: 40px 0;
}
.products-hero__inner { }
.products-hero__title {
  font-size: 28px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 8px;
}
.products-hero__subtitle { color: var(--subtitle); font-size: 15px; margin: 0; }

.products-browse { padding: 32px 0 48px; }

.products-controls { margin-bottom: 20px; }

.search-wrap {
  position: relative;
  max-width: 400px;
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 10px 12px 10px 38px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text);
  background: var(--card-bg);
  outline: none;
  transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--teal); }

.category-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.category-filter-pill {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.category-filter-pill:hover {
  background: var(--teal-light);
  border-color: var(--teal);
  color: var(--teal-medium);
}
.category-filter-pill--active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.products-count {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
}

.no-results {
  text-align: center;
  color: var(--muted);
  padding: 40px 0;
  font-size: 15px;
}

/* ============================================================
   Product single page
   ============================================================ */
.product-page { padding: 32px 0 48px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--teal-medium); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb__sep { color: var(--light-muted); }

.product-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

.product-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 14px;
}

.product-cats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.product-sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-price-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
}
.sidebar-price {
  font-size: 36px;
  font-weight: 700;
  color: var(--teal-medium);
  line-height: 1;
}
.sidebar-format { font-size: 13px; color: var(--muted); margin: 0; }
.sidebar-phone, .sidebar-email { font-size: 13px; text-align: center; margin: 0; }
.sidebar-phone a, .sidebar-email a { color: var(--teal-medium); font-weight: 600; }
.sidebar-guarantee { font-size: 12px; color: var(--muted); text-align: center; margin: 0; }

.sidebar-guarantee-card {
  background: var(--gold-light);
  border: 1px solid #f0e0a0;
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sidebar-guarantee-card__icon {
  width: 36px;
  height: 36px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-guarantee-card__icon svg { width: 18px; height: 18px; stroke: var(--gold-dark); }
.sidebar-guarantee-card__title { font-size: 14px; font-weight: 600; color: var(--heading); margin: 0; }
.sidebar-guarantee-card__text { font-size: 13px; color: var(--text); margin: 0; }
.sidebar-guarantee-card__link { font-size: 12px; color: var(--teal-medium); }

/* Below product layout */
.product-bottom { margin-top: 48px; }
.product-testimonial-strip { padding: 32px; background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--card-border); }
.product-testimonial-strip__title { font-size: 20px; font-weight: 600; margin-bottom: 20px; }

/* ============================================================
   Blog pages
   ============================================================ */
.blog-page { padding: 32px 0 48px; }
.blog-article { max-width: 720px; }
.blog-article__header { margin-bottom: 28px; }
.blog-article__title { font-size: 28px; margin-bottom: 12px; }
.blog-article__intro { color: var(--muted); font-size: 16px; font-style: italic; }
.blog-article__footer { margin-top: 40px; }
.blog-cta {
  background: var(--teal-light);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.blog-cta__text { color: var(--teal-dark); font-weight: 500; margin: 0; }

.blog-list-page { padding: 32px 0 48px; }
.blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.blog-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.15s;
}
.blog-card:hover { box-shadow: var(--shadow-md); }
.blog-card__body { display: flex; flex-direction: column; gap: 12px; }
.blog-card__title { font-size: 17px; font-weight: 600; margin: 0; }
.blog-card__title a { color: var(--heading); }
.blog-card__title a:hover { color: var(--teal-medium); text-decoration: none; }
.blog-card__desc { font-size: 14px; color: var(--muted); margin: 0; }

/* ============================================================
   Default list cards
   ============================================================ */
.list-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.list-card__title { font-size: 16px; font-weight: 600; margin: 0; }
.list-card__title a { color: var(--heading); }
.list-card__desc { font-size: 14px; color: var(--muted); margin: 0; }

/* ============================================================
   Prose (body content areas)
   ============================================================ */
.prose { color: var(--text); }
.prose h1, .prose h2, .prose h3, .prose h4 { color: var(--heading); margin: 1.4em 0 0.5em; line-height: 1.3; }
.prose h1 { font-size: 26px; }
.prose h2 { font-size: 20px; }
.prose h3 { font-size: 17px; }
.prose p { margin-bottom: 1em; }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 1em; }
.prose li { margin-bottom: 4px; }
.prose a { color: var(--teal-medium); }
.prose a:hover { text-decoration: underline; }
.prose strong { color: var(--heading); }
.prose blockquote {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  border-left: 3px solid var(--teal);
  padding: 8px 0 8px 20px;
  margin: 1.2em 0;
  color: var(--muted);
}
.prose img { border-radius: var(--radius); margin: 1em 0; max-width: 100%; }
.prose hr { border: none; border-top: 1px solid var(--card-border); margin: 2em 0; }

.prose--testimonials blockquote {
  background: var(--card-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 16px 16px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.prose-page { padding: 32px 0 48px; max-width: 800px; }

/* ============================================================
   Site footer
   ============================================================ */
.site-footer {
  background: var(--navy);
  color: var(--light-muted);
  padding: 48px 0 0;
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--footer-divider);
}

.footer-brand {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.footer-address {
  font-size: 13px;
  margin-bottom: 8px;
  line-height: 1.5;
}
.footer-contact {
  display: block;
  font-size: 13px;
  color: var(--light-muted);
  margin-bottom: 4px;
}
.footer-contact:hover { color: var(--teal); text-decoration: none; }

.footer-col__heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 12px;
}
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  font-size: 13px;
  color: var(--light-muted);
}
.footer-links a:hover { color: var(--teal); text-decoration: none; }

.footer-bottom {
  padding: 16px 0;
  color: var(--light-muted);
}
.footer-bottom p { font-size: 12px; margin: 0; }

/* ============================================================
   Responsive: tablet (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  .top-bar__right { display: none; }

  .hamburger { display: flex; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 24px 16px;
    gap: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  }
  .main-nav.nav-open { display: flex; }
  .main-header { position: sticky; top: 0; }
  .main-header__inner { position: relative; }

  .nav-link { padding: 10px 12px; border-radius: 4px; }

  .hero { padding: 40px 0; }
  .hero__title { font-size: 22px; }

  .product-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .product-grid--4 { grid-template-columns: repeat(2, 1fr); }

  .trust-section__inner { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }

  .product-layout {
    grid-template-columns: 1fr;
  }
  .product-sidebar {
    position: static;
    order: -1;
  }

  .site-footer__inner { grid-template-columns: 1fr 1fr; }

  .blog-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Responsive: mobile (max 480px)
   ============================================================ */
@media (max-width: 480px) {
  .top-bar { display: none; }

  h1 { font-size: 22px; }

  .hero { padding: 32px 0; }
  .hero__title { font-size: 20px; }
  .hero__buttons { flex-direction: column; align-items: flex-start; }

  .product-grid--3,
  .product-grid--4 { grid-template-columns: 1fr; }

  .site-footer__inner { grid-template-columns: 1fr; }

  .cta-banner__inner { flex-direction: column; align-items: flex-start; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }

  .blog-cta { flex-direction: column; align-items: flex-start; }

  .breadcrumb { gap: 4px; }
}