:root {
  --bg-primary: #F8F7F4;
  --bg-surface: #FFFFFF;
  --bg-subtle: #EFECE6;
  --text-main: #1E2224;
  --text-muted: #565D61;
  --accent: #8C5024;
  --accent-hover: #6E3D19;
  --border-light: #DCD8D0;
  --font-serif: "Iowan Old Style", "Apple Garamond", "Baskerville", Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1120px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 1.05rem;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--text-main);
  color: #FFF;
  padding: 8px 16px;
  z-index: 999;
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus {
  top: 0;
}

/* Header Container */
header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  padding: 1rem;
  position: relative;
  z-index: 100;
}
.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.02em;
}

/* Desktop Navigation */
nav#main-nav {
  display: block;
}
nav#main-nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}
nav#main-nav a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
nav#main-nav a:hover, nav#main-nav a:focus {
  color: var(--accent);
  text-decoration: underline;
}

/* Menu Toggle Button Base */
button.menu-toggle {
  display: none;
  background: #FFF;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  cursor: pointer;
  padding: 10px;
  z-index: 200;
  -webkit-tap-highlight-color: transparent;
}
.hamburger-box {
  width: 24px;
  height: 18px;
  display: block;
  position: relative;
}
.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
  width: 24px;
  height: 2.5px;
  background-color: var(--text-main);
  border-radius: 2px;
  position: absolute;
  transition: transform 0.2s ease, top 0.2s ease, opacity 0.2s ease;
}
.hamburger-inner {
  top: 50%;
  transform: translateY(-50%);
}
.hamburger-inner::before {
  content: "";
  top: -7px;
  left: 0;
}
.hamburger-inner::after {
  content: "";
  top: 7px;
  left: 0;
}

/* Mobile Layout: screens 860px wide or less */
@media screen and (max-width: 860px) {
  button.menu-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
  }

  nav#main-nav {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #FFFFFF;
    border-bottom: 2px solid var(--accent);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
    z-index: 150;
  }

  nav#main-nav.is-open {
    display: block !important;
  }

  nav#main-nav ul {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    padding: 0.5rem 0 !important;
    gap: 0 !important;
  }

  nav#main-nav li {
    width: 100%;
  }

  nav#main-nav a {
    display: block !important;
    width: 100%;
    padding: 1rem 1.5rem !important;
    border-bottom: 1px solid var(--border-light);
    font-size: 1.1rem;
  }

  nav#main-nav li:last-child a {
    border-bottom: none;
  }

  /* Animated X state */
  button.menu-toggle[aria-expanded="true"] .hamburger-inner {
    background-color: transparent !important;
  }
  button.menu-toggle[aria-expanded="true"] .hamburger-inner::before {
    top: 0 !important;
    transform: rotate(45deg) !important;
  }
  button.menu-toggle[aria-expanded="true"] .hamburger-inner::after {
    top: 0 !important;
    transform: rotate(-45deg) !important;
  }
}

/* Content Layout */
main {
  max-width: var(--max-width);
  margin: 2.5rem auto;
  padding: 0 1rem;
}

.intro {
  margin-bottom: 2rem;
}
.intro h1 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.product-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.75rem;
}
@media (max-width: 768px) {
  .product-card {
    grid-template-columns: 1fr;
  }
}
.product-image-container {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  border-radius: 2px;
}
.product-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.benefit-callout {
  margin: 0.85rem 0;
  padding: 0.75rem 1rem;
  background-color: var(--bg-primary);
  border-left: 3px solid var(--accent);
  font-size: 0.95rem;
}
.spec-list {
  list-style: none;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.spec-list li {
  margin-bottom: 0.35rem;
}
.btn-amazon {
  display: inline-block;
  background-color: var(--text-main);
  color: #FFFFFF;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}
.btn-amazon:hover, .btn-amazon:focus {
  background-color: var(--accent-hover);
}
.rating-field {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 1rem;
}
.compliance-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0 2rem;
  background: var(--bg-surface);
  font-size: 0.95rem;
}
.comparison-table th, .comparison-table td {
  border: 1px solid var(--border-light);
  padding: 0.75rem 1rem;
  text-align: left;
}
.comparison-table th {
  background: var(--bg-subtle);
  font-weight: 600;
}

footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  padding: 3rem 1rem 2rem;
  margin-top: 4rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}
.amazon-mandatory-statement {
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  line-height: 1.5;
}