:root {
  --color-bg: #F8FAFC;
  --color-text: #0F172A;
  --color-text-muted: #475569;
  --color-text-faint: #64748B;
  --color-heading: #0F172A;
  --color-accent: #0F766E;
  --color-accent-soft: #C6E5E1;
  --color-border: #E2E8F0;
  --color-surface: #EEF2F6;
  --color-primary: #0F172A;
  --font-body: "IBM Plex Sans", "Source Sans Pro", -apple-system, system-ui, sans-serif;
  --font-heading: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --measure: 68ch;
  --container: 720px;
  --container-wide: 1180px;
  --radius: 4px;
  --radius-card: 6px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }

main {
  max-width: var(--container-wide);
  margin: 2.5rem auto 4rem;
  padding: 0 1.25rem;
}

a { color: var(--color-accent); }
a:hover { opacity: 0.85; }

/* ----- Site header --------------------------------------------------- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(8px);
}
.site-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-heading);
  text-decoration: none;
}
.site-title:hover { color: var(--color-accent); }
.site-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.4rem; align-items: center; }
.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}
.site-nav a:hover { color: var(--color-heading); border-bottom-color: var(--color-accent); }

/* ----- Layouts -------------------------------------------------------- */
.layout { width: 100%; }
.layout-no-sidebar { max-width: 720px; margin: 0 auto; }
.layout-wide { max-width: var(--container-wide); margin: 0 auto; }
.layout-sidebar {
  display: grid;
  grid-template-columns: minmax(0, 720px) 280px;
  gap: 3rem;
  max-width: 1100px;
  margin: 0 auto;
}
.layout-sidebar__main { min-width: 0; }
.layout-sidebar__sidebar { font-size: 0.92rem; }
@media (max-width: 1024px) {
  .layout-sidebar { grid-template-columns: 1fr; gap: 1.5rem; }
  .layout-sidebar__sidebar { order: 2; }
}

/* ----- Article header ------------------------------------------------ */
article > header { margin-bottom: 1.5rem; }
article > header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.4vw, 2.55rem);
  line-height: 1.18;
  margin: 0.4rem 0 0.75rem;
  color: var(--color-heading);
  letter-spacing: -0.015em;
}
.reading-time {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.breadcrumbs { font-size: 0.85rem; color: var(--color-text-faint); margin-bottom: 1rem; }
.breadcrumbs a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs span[aria-current="page"] { color: var(--color-heading); font-weight: 500; }

/* ----- Heroes (shared shell) ----------------------------------------- */
.hero { margin: 1.25rem 0 2rem; }
.hero img { display: block; width: 100%; height: auto; }
.hero__subhead {
  margin: 0.5rem 0 0;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.45;
}
.hero__meta {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}
.hero figcaption {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--color-text-faint);
  font-style: italic;
}

/* ----- Prose body ---------------------------------------------------- */
.prose { max-width: var(--measure); font-size: 1.05rem; color: var(--color-text); }
.prose h2 {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  line-height: 1.25;
  margin: 2.4rem 0 0.85rem;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}
.prose h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin: 1.8rem 0 0.7rem;
  color: var(--color-heading);
}
.prose h4 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.4rem 0 0.5rem;
  color: var(--color-heading);
}
.prose p { margin: 0 0 1.15rem; }
.prose a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.prose ul, .prose ol { padding-left: 1.4rem; margin: 0 0 1.25rem; }
.prose li { margin: 0.4rem 0; }
.prose code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.08em 0.35em;
}
.prose strong { color: var(--color-heading); font-weight: 700; }
.prose em { font-style: italic; }

/* ----- Pullquote ----------------------------------------------------- */
.pullquote {
  margin: 2rem 0;
  padding: 0.5rem 0 0.5rem 1.4rem;
  border-left: 4px solid var(--color-accent);
  font-family: var(--font-heading);
}
.pullquote blockquote {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.45;
  color: var(--color-heading);
  font-style: italic;
  font-weight: 500;
}
.pullquote-attribution {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-style: normal;
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

/* ----- Author byline ------------------------------------------------- */
.author-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  align-items: baseline;
  margin: 0.6rem 0 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.author-byline a {
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}
.author-byline a:hover { color: var(--color-accent); }
.author-byline__separator { color: var(--color-text-faint); }
.author-byline__role { font-style: italic; }

/* ----- Author card --------------------------------------------------- */
.author-card {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem 1.25rem;
  padding: 1.25rem;
  margin: 2.5rem 0 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}
.author-card__avatar { width: 60px; height: 60px; border-radius: 50%; overflow: hidden; }
.author-card__avatar--placeholder {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-border);
}
.author-card__avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.author-card__name { font-weight: 700; color: var(--color-heading); }
.author-card__role { font-size: 0.88rem; color: var(--color-text-muted); margin-bottom: 0.5rem; }
.author-card__bio { margin: 0; font-size: 0.95rem; line-height: 1.55; color: var(--color-text); }
.author-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ----- Last updated -------------------------------------------------- */
.last-updated {
  font-size: 0.85rem;
  color: var(--color-text-faint);
  margin: 1.5rem 0 0;
}

/* ----- Key takeaways ------------------------------------------------- */
.key-takeaways {
  background: var(--color-accent-soft);
  border-left: 4px solid var(--color-accent);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0 2rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.key-takeaways__heading {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 0.5rem;
  font-weight: 700;
}
.key-takeaways ul { margin: 0; padding-left: 1.25rem; }
.key-takeaways li { margin: 0.35rem 0; }

/* ----- Pros / cons --------------------------------------------------- */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
  background: var(--color-bg);
}
.pros-cons__heading {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 700;
}
.pros-cons ul { padding-left: 1.4rem; margin: 0; list-style: none; }
.pros-cons li { margin: 0.35rem 0; padding-left: 0.25rem; position: relative; }
.pros-cons__pros li::before {
  content: "✓";
  color: #16a34a;
  font-weight: 700;
  margin-right: 0.5rem;
}
.pros-cons__cons li::before {
  content: "✗";
  color: #dc2626;
  font-weight: 700;
  margin-right: 0.5rem;
}
@media (max-width: 640px) { .pros-cons { grid-template-columns: 1fr; gap: 1rem; } }

/* ----- Callouts ------------------------------------------------------ */
.callout {
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: 0.75rem 1rem;
  padding: 1rem 1.2rem;
  margin: 1.25rem 0;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
  background: var(--color-surface);
}
.callout__icon { font-size: 1.1rem; line-height: 1.4; }
.callout__body { line-height: 1.55; color: var(--color-text); }
.callout__label {
  display: inline;
  font-style: italic;
  margin-right: 0.35rem;
  color: var(--color-heading);
}
.callout--tip { background: #DBEAFE; border-left-color: #1E40AF; }
.callout--warning { background: #FEF3C7; border-left-color: #D97706; }
.callout--note { background: #F3F4F6; border-left-color: #525252; }

/* ----- Star rating --------------------------------------------------- */
.star-rating {
  display: grid;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  margin: 1.5rem 0;
}
.star-rating__main { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.star-rating__bar { display: inline-flex; gap: 2px; }
.star-rating__star { width: 22px; height: 22px; }
.star-rating__numeric { font-weight: 700; color: var(--color-heading); }
.star-rating__label {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.star-rating__breakdown { display: grid; gap: 0.4rem; }
.star-rating__row {
  display: grid;
  grid-template-columns: minmax(8rem, 1fr) minmax(6rem, 2fr) auto;
  gap: 0.75rem;
  align-items: center;
  font-size: 0.88rem;
  color: var(--color-text);
}
.star-rating__criterion { color: var(--color-text-muted); }
.star-rating__minibar {
  height: 6px;
  background: var(--color-surface);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.star-rating__minibar-fill {
  display: block;
  height: 100%;
  background: var(--color-accent);
  border-radius: 999px;
}
.star-rating__value { color: var(--color-heading); font-weight: 600; }

/* ----- Comparison table --------------------------------------------- */
.comparison-table { margin: 2rem 0; }
.comparison-table__wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.comparison-table table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
  background: var(--color-bg);
}
.comparison-table caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-heading);
  padding: 0 0 0.75rem;
}
.comparison-table thead th {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  color: var(--color-heading);
  font-weight: 600;
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 2px solid var(--color-border);
}
.comparison-table tbody th, .comparison-table tbody td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.comparison-table tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--color-heading);
  background: var(--color-surface);
  width: 14rem;
}
.comparison-table tbody tr:nth-child(odd) td { background: rgba(0, 0, 0, 0.015); }
.comparison-table__editors-pick td,
.comparison-table__editors-pick th {
  background: var(--color-accent-soft) !important;
}
.comparison-table__badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-right: 0.5rem;
  font-weight: 700;
}

/* ----- Product card -------------------------------------------------- */
.product-card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  margin: 2rem 0;
}
.product-card {
  display: grid;
  gap: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-bg);
  padding: 1.25rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.product-card__rank {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-bg);
  background: var(--color-accent);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}
.product-card__image { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); }
.product-card__image img { width: 100%; height: 100%; object-fit: cover; }
.product-card__name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0;
  color: var(--color-heading);
}
.product-card__one-liner { color: var(--color-text-muted); margin: 0; }
.product-card__specs {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.85rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.product-card__specs li { background: var(--color-surface); padding: 0.2rem 0.6rem; border-radius: 999px; }
.product-card__description { margin: 0; line-height: 1.55; color: var(--color-text); }
.product-card__cta {
  display: inline-block;
  text-decoration: none;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  align-self: flex-start;
}
.product-card__cta:hover { filter: brightness(0.95); opacity: 1; }

/* ----- Methodology --------------------------------------------------- */
.methodology {
  margin: 2.5rem 0;
  padding: 1.5rem 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}
.methodology__heading {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin: 0 0 0.75rem;
  color: var(--color-heading);
}
.methodology__intro { margin: 0 0 1.25rem; color: var(--color-text); }
.methodology__criteria { display: grid; gap: 0.85rem; }
.methodology__criterion {
  display: grid;
  gap: 0.2rem 1rem;
  grid-template-columns: minmax(8rem, 1fr) auto;
  align-items: baseline;
}
.methodology__criterion-name { color: var(--color-heading); }
.methodology__weight { color: var(--color-accent); font-size: 0.9rem; letter-spacing: 0.05em; }
.methodology__criterion-desc {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}
.methodology__note { margin: 1.25rem 0 0; font-size: 0.85rem; color: var(--color-text-faint); }

/* ----- Affiliate disclosure ----------------------------------------- */
.affiliate-disclosure {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 1rem 0 1.75rem;
  font-style: italic;
}
.affiliate-disclosure__label { font-style: normal; color: var(--color-heading); }
.affiliate-disclosure__link { font-style: normal; }

/* ----- TOC ----------------------------------------------------------- */
.toc {
  position: sticky;
  top: 5rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  border-left: 1px solid var(--color-border);
  padding-left: 1.25rem;
  margin: 0.5rem 0;
}
.toc__heading {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin: 0 0 0.6rem;
  font-weight: 700;
}
.toc__list, .toc__sublist { list-style: none; margin: 0; padding: 0; }
.toc__sublist { padding-left: 0.8rem; margin-top: 0.25rem; }
.toc__list li, .toc__sublist li { margin: 0.25rem 0; }
.toc__link {
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: none;
  display: inline-block;
  padding: 0.1rem 0;
}
.toc__link:hover { color: var(--color-accent); }
.toc__active { color: var(--color-heading); font-weight: 700; }

/* ----- FAQ ----------------------------------------------------------- */
.faq h2 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  color: var(--color-heading);
  margin: 0 0 1rem;
}
.faq details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 0.6rem 0;
  background: var(--color-bg);
}
.faq details[open] { box-shadow: var(--shadow-sm); }
.faq summary {
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--color-accent); }
.faq details[open] summary::after { content: "−"; }
.faq details > div { margin-top: 0.6rem; color: var(--color-text-muted); line-height: 1.6; }
.faq details > div p { margin: 0 0 0.6rem; }

/* ----- Special pages ------------------------------------------------- */
.page-about, .page-privacy, .page-terms { font-size: 1.02rem; }
.page-about > header h1, .page-privacy > header h1, .page-terms > header h1 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  font-size: 2rem;
  margin-bottom: 1.25rem;
}
.page-about__section, .page-privacy section, .page-terms section { margin: 1.75rem 0; }
.page-about__section h2, .page-privacy h2, .page-terms h2 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  font-size: 1.35rem;
}
.page-privacy__effective, .page-terms__effective { color: var(--color-text-faint); font-size: 0.9rem; }

/* ----- Footer -------------------------------------------------------- */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 1.25rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-faint);
  font-size: 0.9rem;
  background: var(--color-surface);
}
.site-footer p { margin: 0; }
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.25rem;
  margin-bottom: 0.75rem;
}
.site-footer__nav a { color: var(--color-text-muted); text-decoration: none; }
.site-footer__nav a:hover { color: var(--color-accent); }

/* ----- Responsive ---------------------------------------------------- */
@media (max-width: 768px) {
  body { font-size: 16px; }
  main { margin: 1.5rem auto 3rem; }
  .site-header { flex-direction: column; align-items: flex-start; padding: 0.85rem 1rem; }
  .product-card-grid { grid-template-columns: 1fr; gap: 1rem; }
  .author-card { grid-template-columns: 50px 1fr; }
  .star-rating__row { grid-template-columns: 1fr auto; }
  .star-rating__minibar { display: none; }
}
.hero-full-bleed { position: relative; margin: 0 0 2rem; }
.hero-full-bleed .hero__image, .hero-full-bleed img {
  width: 100%; max-height: 60vh; object-fit: cover;
}
.hero-full-bleed .hero__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 2rem clamp(1rem, 4vw, 3rem);
  background: linear-gradient(to top, rgba(0,0,0,0.65), transparent);
  color: #FFFFFF;
}
.hero-full-bleed .hero__overlay h1 {
  font-family: var(--font-heading);
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 2.75rem);
  color: #FFFFFF;
}
.hero-full-bleed .hero__overlay p { margin: 0.4rem 0 0; max-width: 60ch; color: #F8FAFC; }