:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1d2430;
  --muted: #5b6673;
  --line: #e6e2d9;
  --accent: #1f6f5f;
  --accent-ink: #ffffff;
  --accent-soft: #e4f1ec;
  --warn-bg: #fff7e6;
  --warn-line: #f2d9a6;
  --radius: 12px;
  --max: 980px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181d; --surface: #1c2229; --ink: #ecebe6; --muted: #a2abb5; --line: #2b333c;
    --accent: #5fc3a6; --accent-ink: #0d1a16; --accent-soft: #1f3a33; --warn-bg: #2d2615; --warn-line: #5a4a1f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 Georgia, "Times New Roman", serif; }
a { color: var(--accent); }
img { max-width: 100%; height: auto; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 16px; }
.brand { font: 700 22px/1 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--accent); }
nav.main a { font: 500 15px system-ui, sans-serif; color: var(--muted); text-decoration: none; margin-left: 18px; }
nav.main a:hover { color: var(--accent); }

.hero { padding: 48px 0 28px; }
.hero h1 { font: 800 clamp(30px, 5vw, 44px)/1.12 system-ui, -apple-system, "Segoe UI", sans-serif; letter-spacing: -.02em; margin: 0 0 12px; }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 0 20px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin: 20px 0 40px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 8px; }
.card:hover { border-color: var(--accent); }
.card .kicker { font: 600 12px/1 system-ui, sans-serif; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.card h3 { margin: 0; font: 700 19px/1.3 system-ui, -apple-system, "Segoe UI", sans-serif; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

article.guide { padding: 28px 0 40px; }
article.guide h1 { font: 800 clamp(28px, 4.5vw, 40px)/1.15 system-ui, -apple-system, "Segoe UI", sans-serif; letter-spacing: -.02em; margin: 0 0 10px; }
.meta { color: var(--muted); font: 14px system-ui, sans-serif; margin-bottom: 18px; }
.disclosure { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: var(--radius); padding: 12px 14px; font: 14px/1.5 system-ui, sans-serif; margin: 0 0 22px; }
article.guide h2 { font: 700 24px/1.25 system-ui, -apple-system, "Segoe UI", sans-serif; margin: 34px 0 10px; }
article.guide h3 { font: 700 20px/1.3 system-ui, -apple-system, "Segoe UI", sans-serif; margin: 26px 0 8px; }
article.guide p, article.guide li { max-width: 72ch; }
.toc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; font: 15px system-ui, sans-serif; margin: 18px 0 8px; }
.toc ol { margin: 6px 0 0; padding-left: 20px; }
.toc a { text-decoration: none; }

.product { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin: 18px 0; }
.product .top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.product h3 { margin: 0; }
.badge { font: 600 12px/1 system-ui, sans-serif; text-transform: uppercase; letter-spacing: .06em; background: var(--accent-soft); color: var(--accent); padding: 6px 10px; border-radius: 999px; white-space: nowrap; }
.tier { font: 600 13px system-ui, sans-serif; color: var(--muted); }
.product .verdict { margin: 10px 0 0; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 12px 0; }
@media (max-width: 640px) { .cols { grid-template-columns: 1fr; } }
.cols h4 { margin: 0 0 6px; font: 600 14px system-ui, sans-serif; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.cols ul { margin: 0; padding-left: 18px; font-size: 15.5px; }
.specs { font: 14.5px/1.5 system-ui, sans-serif; color: var(--muted); margin: 8px 0 0; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); text-decoration: none; font: 600 15px system-ui, sans-serif; padding: 11px 16px; border-radius: 10px; margin-top: 12px; }
.btn:hover { filter: brightness(1.08); }
.btn small { font-weight: 400; opacity: .85; }
.btn.btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); padding: 9px 14px; }
.card .btn { margin-top: 4px; font-size: 14px; padding: 9px 12px; }
.card .note { margin: 0; }

.compare { width: 100%; border-collapse: collapse; font: 14.5px/1.4 system-ui, sans-serif; margin: 14px 0 6px; }
.compare th, .compare td { border-bottom: 1px solid var(--line); padding: 9px 8px; text-align: left; vertical-align: top; }
.compare th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; }
.table-wrap { overflow-x: auto; }

.faq details { border-top: 1px solid var(--line); padding: 10px 0; }
.faq summary { cursor: pointer; font: 600 17px system-ui, sans-serif; }
.faq p { margin: 8px 0 0; }

.note { font: 14px/1.5 system-ui, sans-serif; color: var(--muted); }
.callout { border-left: 4px solid var(--accent); background: var(--surface); padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; margin: 18px 0; }

footer.site { border-top: 1px solid var(--line); margin-top: 40px; padding: 26px 0 40px; font: 14px/1.6 system-ui, sans-serif; color: var(--muted); }
footer.site a { color: var(--muted); }
footer.site .links a { margin-right: 14px; }
.legal { padding: 28px 0 40px; }
.legal h1 { font: 800 32px/1.15 system-ui, sans-serif; }
.legal h2 { font: 700 22px system-ui, sans-serif; margin-top: 28px; }