:root {
  --paper: #fffdf8;
  --soft: #f3f5ef;
  --sage: #e7eee8;
  --mint: #bfd2c3;
  --green: #1f4a38;
  --green-dark: #162a21;
  --ink: #2b2723;
  --muted: #6e655b;
  --coral: #d9784a;
  --line: rgba(43, 39, 35, .13);
  --shadow: 0 22px 65px rgba(31, 74, 56, .09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

img, svg { display: block; max-width: 100%; }

.wrap { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }

.skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--green);
  color: white;
  transform: translateY(-150%);
}

.skip:focus { transform: none; }

.guide-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, .92);
  backdrop-filter: blur(16px);
}

.guide-nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.guide-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--green);
  font-size: 20px;
  font-weight: 850;
  letter-spacing: -.04em;
  text-decoration: none;
}

.guide-brand svg { width: 38px; height: 38px; }

.guide-nav-links { display: flex; align-items: center; gap: 24px; }

.guide-nav-links a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 720;
  text-decoration: none;
}

.guide-download,
.article-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 14px;
  background: var(--green);
  color: white;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.guide-download { padding: 0 18px; }

.breadcrumb {
  padding-top: 32px;
  color: var(--muted);
  font-size: 12px;
}

.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--green); }

.article-hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(circle at 90% 20%, rgba(191, 210, 195, .55), transparent 27%),
    linear-gradient(180deg, var(--paper), var(--soft));
}

.article-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 80px;
  align-items: end;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 22px;
  height: 2px;
  background: var(--coral);
  content: "";
}

h1, h2, h3 { margin-top: 0; letter-spacing: -.045em; }

h1 {
  max-width: 850px;
  margin-bottom: 24px;
  font-size: clamp(46px, 7vw, 78px);
  line-height: .98;
}

.article-lead {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.45;
}

.hero-card {
  padding: 27px;
  border: 1px solid rgba(31, 74, 56, .16);
  border-radius: 24px;
  background: rgba(255, 253, 248, .82);
  box-shadow: var(--shadow);
}

.hero-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--green);
  font-size: 17px;
}

.hero-card ul { margin: 0; padding: 0; list-style: none; }

.hero-card li {
  position: relative;
  padding: 10px 0 10px 25px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.hero-card li::before {
  position: absolute;
  top: 12px;
  left: 0;
  color: var(--coral);
  font-weight: 900;
  content: "✓";
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 80px;
  padding: 76px 0 110px;
}

.article-body { max-width: 760px; }

.article-body h2 {
  margin: 56px 0 16px;
  color: var(--green-dark);
  font-size: clamp(31px, 4vw, 43px);
  line-height: 1.08;
}

.article-body h3 {
  margin: 32px 0 9px;
  font-size: 23px;
  line-height: 1.2;
}

.article-body p,
.article-body li { font-size: 17px; }

.article-body p { margin: 0 0 19px; }
.article-body ul, .article-body ol { margin: 20px 0 26px; padding-left: 24px; }
.article-body li + li { margin-top: 11px; }
.article-body a { color: var(--green); font-weight: 700; }

.answer-box,
.source-box,
.notice-box {
  margin: 32px 0;
  padding: 24px 26px;
  border-radius: 20px;
}

.answer-box { border-left: 4px solid var(--coral); background: #f8ede6; }
.source-box { border: 1px solid rgba(31, 74, 56, .15); background: var(--sage); }
.notice-box { border: 1px solid var(--line); background: var(--soft); }

.answer-box strong,
.source-box strong,
.notice-box strong { display: block; margin-bottom: 7px; color: var(--green-dark); }

.answer-box p,
.source-box p,
.notice-box p { margin: 0; font-size: 15px; }

.article-shot {
  display: grid;
  grid-template-columns: minmax(180px, 270px) 1fr;
  gap: 34px;
  align-items: center;
  margin: 40px 0 50px;
  padding: 30px;
  border-radius: 26px;
  background: var(--sage);
}

.article-shot picture {
  overflow: hidden;
  border: 6px solid #151317;
  border-radius: 32px;
  background: var(--paper);
  box-shadow: 0 22px 45px rgba(31, 74, 56, .2);
}

.article-shot img { width: 100%; height: auto; }
.article-shot figcaption { color: var(--muted); font-size: 14px; }
.article-shot figcaption strong { display: block; margin-bottom: 10px; color: var(--green-dark); font-size: 23px; line-height: 1.15; letter-spacing: -.035em; }

.comparison {
  width: 100%;
  margin: 28px 0 36px;
  border-collapse: collapse;
  font-size: 15px;
}

.comparison th,
.comparison td {
  padding: 14px 16px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison th { background: var(--sage); color: var(--green-dark); }

.faq-block { margin-top: 64px; }

.faq-block details { border-top: 1px solid var(--line); }
.faq-block details:last-child { border-bottom: 1px solid var(--line); }

.faq-block summary {
  padding: 20px 4px;
  color: var(--green-dark);
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
}

.faq-block details p { padding: 0 4px 20px; color: var(--muted); font-size: 15px; }

.article-aside { align-self: start; }

.aside-card {
  position: sticky;
  top: 104px;
  padding: 26px;
  border-radius: 22px;
  background: var(--green-dark);
  color: white;
}

.aside-card span {
  color: var(--mint);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.aside-card h2 {
  margin: 12px 0;
  font-size: 29px;
  line-height: 1.05;
}

.aside-card p { color: #c8d5cc; font-size: 14px; }

.article-cta {
  width: 100%;
  margin-top: 8px;
  padding: 0 18px;
  background: var(--paper);
  color: var(--green);
}

.related {
  padding: 76px 0;
  background: var(--sage);
}

.related-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.related h2 { margin: 0; font-size: clamp(32px, 4vw, 46px); }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.related-card {
  min-height: 210px;
  padding: 25px;
  border: 1px solid rgba(31, 74, 56, .12);
  border-radius: 22px;
  background: var(--paper);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.related-card small { color: var(--coral); font-weight: 850; text-transform: uppercase; letter-spacing: .1em; }
.related-card h3 { margin: 36px 0 9px; color: var(--green-dark); font-size: 23px; line-height: 1.12; }
.related-card p { margin: 0; color: var(--muted); font-size: 13px; }

.seo-footer { padding: 68px 0 28px; background: var(--green-dark); color: white; }

.seo-footer-grid {
  display: grid;
  grid-template-columns: 1.25fr repeat(3, 1fr);
  gap: 54px;
  padding-bottom: 55px;
}

.seo-footer-intro p { max-width: 240px; color: #b8c8bc; font-size: 13px; }
.seo-footer h2 { margin: 5px 0 17px; color: var(--mint); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.seo-footer-links { display: grid; gap: 11px; }
.seo-footer-links a { color: #d3ddd5; font-size: 13px; text-decoration: none; }
.seo-footer-links a:hover { color: white; }
.seo-footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: #8a998e; font-size: 10px; }

:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; }

@media (max-width: 900px) {
  .article-hero-grid,
  .article-shell { grid-template-columns: 1fr; gap: 42px; }
  .article-aside { display: none; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .seo-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 28px, 1120px); }
  .guide-nav { min-height: 66px; }
  .guide-nav-links a:not(.guide-download) { display: none; }
  .guide-download { padding-inline: 13px; }
  .article-hero { padding: 45px 0 48px; }
  .breadcrumb { padding-top: 20px; }
  h1 { font-size: 44px; }
  .article-lead { font-size: 18px; }
  .hero-card { padding: 22px; }
  .article-shell { padding: 52px 0 80px; }
  .article-body p, .article-body li { font-size: 16px; }
  .article-shot{grid-template-columns:1fr;padding:22px}
  .article-shot picture{width:min(250px,100%);margin-inline:auto}
  .comparison { display: block; overflow-x: auto; }
  .related { padding: 58px 0; }
  .related-head { display: block; }
  .related-grid { grid-template-columns: 1fr; }
  .seo-footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .seo-footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .related-card { transition: none; }
}