:root {
  --ink: #0b3340;
  --ink-2: #294955;
  --muted: #647c84;
  --teal: #07877c;
  --teal-dark: #056a62;
  --mint: #e8f7f3;
  --canvas: #f5faf9;
  --line: #d8e7e4;
  --amber: #e6a33b;
  --amber-pale: #fff7e8;
  --green: #247a55;
  --red: #a94d4d;
  --shadow: 0 18px 50px rgba(11, 51, 64, .10);
  --shadow-soft: 0 10px 28px rgba(11, 51, 64, .07);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink-2);
  background: #fff;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.72;
}
img { max-width: 100%; }
a { color: var(--teal); text-underline-offset: 3px; }
p, li, dd { overflow-wrap: anywhere; }
h1, h2, h3 { color: var(--ink); letter-spacing: -.025em; }
h2, h3 { line-height: 1.2; }
.fit-header {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  padding: 15px max(18px, calc((100vw - 1120px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8, 45, 56, .98);
  color: #fff;
  box-shadow: 0 4px 18px rgba(5, 32, 40, .16);
}
.fit-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 900;
  text-decoration: none;
}
.fit-brand img { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }
.fit-nav { display: flex; gap: 22px; font-size: .84rem; font-weight: 750; }
.fit-nav a { color: #eef8f7; text-decoration: none; }
.fit-nav a:hover { color: #9cf2e8; }
.hero {
  padding: 48px max(18px, calc((100vw - 1120px) / 2)) 55px;
  background: radial-gradient(circle at 82% 15%, rgba(86, 183, 170, .24), transparent 28%), linear-gradient(180deg, #fbfefd, #f3faf8);
  border-bottom: 1px solid var(--line);
}
.hero-gallery {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: 16px;
  margin-bottom: 38px;
}
.hero-gallery img {
  width: 100%;
  height: 245px;
  object-fit: contain;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 950px;
  margin: 0 0 20px;
  font-size: clamp(2.45rem, 6vw, 4.9rem);
  line-height: 1.06;
  letter-spacing: -.047em;
}
.hero-lead {
  max-width: 890px;
  margin: 0 0 15px;
  color: var(--ink-2);
  font-size: clamp(1.12rem, 2vw, 1.32rem);
  line-height: 1.55;
}
.meta { margin: 0; color: var(--muted); font-size: .91rem; }
main { padding: 0 18px; }
.section, .notice, .review-card {
  width: min(100%, 1120px);
  margin-left: auto;
  margin-right: auto;
}
.section { margin-top: 78px; }
.section > h2 {
  margin: 0 0 24px;
  font-size: clamp(1.85rem, 4vw, 3rem);
}
.section > h3 { margin: 38px 0 14px; font-size: clamp(1.25rem, 2.5vw, 1.7rem); }
.notice {
  margin-top: 34px;
  padding: 22px 25px;
  border-left: 4px solid var(--teal);
  border-radius: 0 18px 18px 0;
  background: var(--mint);
}
.notice p { margin: 0; }
.notice p + p { margin-top: 12px; }
.quick-answer {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(270px, .6fr);
  gap: 22px;
  align-items: stretch;
}
.quick-answer > div {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.quick-answer .answer-main { background: linear-gradient(145deg, #fff, var(--canvas)); }
.quick-answer h3 { margin: 0 0 10px; font-size: 1.35rem; }
.quick-answer p { margin: 0; }
.quick-answer ul { margin: 0; padding-left: 21px; }
.pick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.pick-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.pick-card img { width: 100%; height: 190px; object-fit: contain; padding: 12px; background: #fff; }
.pick-card-body { display: flex; flex: 1; flex-direction: column; padding: 17px; }
.pick-label { color: var(--teal); font-size: .74rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.pick-card h3 { margin: 6px 0 8px; font-size: 1.15rem; }
.pick-card p { margin: 0 0 14px; color: var(--muted); font-size: .9rem; line-height: 1.55; }
.pick-card .amazon-btn { margin-top: auto; }
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
table { width: 100%; border-collapse: collapse; }
thead { background: var(--ink); color: #fff; }
th, td { padding: 14px 13px; text-align: left; vertical-align: middle; border-bottom: 1px solid var(--line); }
th { font-size: .76rem; letter-spacing: .04em; text-transform: uppercase; }
tbody tr:nth-child(even) { background: var(--canvas); }
tbody tr:last-child td { border-bottom: 0; }
.rank-cell { color: var(--teal); font-size: 1.1rem; font-weight: 900; }
.table-product { display: flex; min-width: 210px; align-items: center; gap: 10px; }
.table-product img { width: 64px; height: 64px; flex: 0 0 64px; object-fit: contain; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.score { white-space: nowrap; color: var(--teal-dark); font-weight: 900; }
.amazon-btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border: 1px solid #f4c700;
  border-radius: 12px;
  background: #ffd814;
  color: #342300;
  font-weight: 850;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(230, 163, 59, .18);
}
.amazon-btn:hover { background: #f7ca00; }
.amazon-btn.small { min-height: 38px; padding: 7px 11px; white-space: nowrap; font-size: .8rem; }
.outline-btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border: 1px solid var(--teal);
  border-radius: 12px;
  background: #fff;
  color: var(--teal-dark);
  font-weight: 800;
  text-decoration: none;
}
.method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; }
.method-card { padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: var(--canvas); }
.method-card strong { display: block; margin-bottom: 6px; color: var(--ink); font-size: 1.08rem; }
.method-card span { color: var(--teal); font-weight: 900; }
.method-card p { margin: 5px 0 0; color: var(--muted); font-size: .91rem; }
.evidence-note {
  margin-top: 24px;
  padding: 20px 22px;
  border: 1px solid #f0d59f;
  border-radius: 16px;
  background: var(--amber-pale);
}
.evidence-note p { margin: 0; }
.review-card {
  scroll-margin-top: 95px;
  margin-top: 82px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: #fff;
  box-shadow: var(--shadow);
}
.product-heading { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 22px; }
.rank-badge {
  display: inline-flex;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--ink);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 950;
}
.product-heading h2 { margin: 0 0 4px; font-size: clamp(1.65rem, 3.2vw, 2.55rem); }
.product-heading p { margin: 0; color: var(--teal); font-weight: 800; }
.product-grid { display: grid; grid-template-columns: minmax(280px, .78fr) minmax(0, 1.22fr); gap: 30px; align-items: start; }
.product-visual { margin: 0; }
.product-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, #fff, var(--canvas));
}
.product-visual figcaption { margin-top: 9px; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.product-copy > p:first-of-type { margin-top: 0; }
.product-copy p { margin-bottom: 15px; }
.product-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 17px; }
.tag { display: inline-flex; padding: 5px 9px; border-radius: 999px; background: var(--mint); color: var(--teal-dark); font-size: .78rem; font-weight: 850; }
.tag.score-tag { background: var(--ink); color: #fff; }
.spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 20px 0; border: 1px solid var(--line); border-radius: 15px; overflow: hidden; }
.spec-grid div { padding: 12px 14px; border-bottom: 1px solid var(--line); }
.spec-grid div:nth-child(odd) { border-right: 1px solid var(--line); }
.spec-grid div:nth-last-child(-n+2) { border-bottom: 0; }
.spec-grid dt { color: var(--muted); font-size: .74rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.spec-grid dd { margin: 2px 0 0; color: var(--ink); font-weight: 750; }
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; margin: 20px 0; }
.pros, .cons { padding: 15px 17px; border-radius: 15px; }
.pros { background: #edf8f1; }
.cons { background: #fff2f0; }
.pros strong { color: var(--green); }
.cons strong { color: var(--red); }
.pros ul, .cons ul { margin: 8px 0 0; padding-left: 20px; font-size: .91rem; line-height: 1.55; }
.product-verdict { padding: 15px 17px; border-left: 3px solid var(--teal); background: var(--canvas); }
.product-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; }
.guide-card { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-soft); }
.guide-card h3 { margin: 0 0 8px; font-size: 1.22rem; }
.guide-card p { margin: 0; }
.steps { counter-reset: step; display: grid; gap: 13px; padding: 0; list-style: none; }
.steps li { position: relative; min-height: 52px; padding: 12px 15px 12px 66px; border: 1px solid var(--line); border-radius: 15px; background: var(--canvas); }
.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 12px;
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  background: var(--teal);
  color: #fff;
  font-weight: 900;
}
.safety {
  padding: 23px 25px;
  border: 1px solid #e8c3c3;
  border-radius: 18px;
  background: #fff6f5;
}
.safety h3 { margin: 0 0 9px; }
.safety p { margin: 0; }
.faq details { padding: 17px 0; border-bottom: 1px solid var(--line); }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 850; }
.faq details p { margin: 11px 0 0; }
.sources { font-size: .93rem; }
.sources li + li { margin-top: 6px; }
.fit-footer {
  margin-top: 85px;
  padding: 44px max(18px, calc((100vw - 1120px) / 2));
  background: var(--ink);
  color: rgba(255, 255, 255, .82);
}
.fit-footer strong { color: #fff; }
.fit-footer a { color: #9de1d7; }

@media (max-width: 900px) {
  .pick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: minmax(240px, .72fr) minmax(0, 1.28fr); gap: 22px; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .fit-nav { display: none; }
  .hero { padding-top: 28px; }
  .hero-gallery { grid-template-columns: 1fr 1fr; margin-bottom: 30px; }
  .hero-gallery img { height: 160px; padding: 9px; }
  .hero-gallery img:first-child { grid-column: 1 / -1; height: 225px; }
  .quick-answer, .product-grid, .guide-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .review-card { margin-top: 60px; padding: 21px; border-radius: 21px; }
  .product-visual { max-width: 440px; margin-left: auto; margin-right: auto; }
  .spec-grid { grid-template-columns: 1fr; }
  .spec-grid div:nth-child(odd) { border-right: 0; }
  .spec-grid div:nth-last-child(2) { border-bottom: 1px solid var(--line); }
  .pros-cons { grid-template-columns: 1fr; }
  .product-actions { display: grid; grid-template-columns: 1fr; }
  .product-actions a { width: 100%; }
}

@media (max-width: 480px) {
  .pick-grid { grid-template-columns: 1fr; }
  .pick-card { display: grid; grid-template-columns: 116px 1fr; }
  .pick-card img { height: 100%; min-height: 190px; padding: 7px; }
  .pick-card-body { padding: 15px 14px; }
  .product-heading { gap: 11px; }
  .rank-badge { width: 40px; height: 40px; flex-basis: 40px; }
}