:root {
  --ink: #10232b;
  --muted: #60747a;
  --paper: #f6faf7;
  --white: #ffffff;
  --navy: #0d2630;
  --navy-2: #123540;
  --teal: #18b59d;
  --teal-soft: #dbf6ef;
  --line: #dce9e5;
  --amber: #f4b753;
  --amber-soft: #fff5df;
  --shadow: 0 22px 70px rgba(12, 45, 52, 0.09);
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: inherit; }

.shell { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }

.site-header {
  background: var(--navy);
  color: #eaf8f4;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.header-inner {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.06rem;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--teal);
  color: var(--navy);
  font-size: 1.2rem;
  font-weight: 700;
}

.header-note { color: #a9c5c0; font-size: 0.8rem; letter-spacing: 0.04em; }

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 0 18px;
  color: #77908e;
  font-size: 0.78rem;
}

.breadcrumbs a { color: #287f75; text-decoration: none; font-weight: 700; }
.breadcrumbs a:hover { text-decoration: underline; }

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 46px;
  align-items: end;
  padding: 60px 58px 56px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 88% 11%, rgba(34, 211, 177, 0.22), transparent 27%),
    radial-gradient(circle at 12% 110%, rgba(42, 116, 142, 0.32), transparent 34%),
    linear-gradient(135deg, #0b252f 0%, #123d4a 100%);
  color: #f3fffc;
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  right: -160px;
  bottom: -210px;
  border: 1px solid rgba(126, 243, 219, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 0 34px rgba(126, 243, 219, 0.045), 0 0 0 68px rgba(126, 243, 219, 0.025);
}

.hero-copy, .hero-panel { position: relative; z-index: 1; }
.eyebrow, .section-number, .card-kicker, .panel-label { margin: 0; font-size: 0.71rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.eyebrow { color: #63e0c4; }
.eyebrow span { color: #8ab6b0; padding: 0 7px; }

h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 700px; margin: 18px 0 18px; font-size: clamp(2.25rem, 4.4vw, 4.25rem); line-height: 1.06; letter-spacing: -0.065em; }
h1 em { display: block; color: #a7d8d0; font-size: 0.43em; font-style: normal; font-weight: 500; line-height: 1.35; letter-spacing: -0.025em; margin-top: 16px; }
.lede { max-width: 680px; margin-bottom: 24px; color: #c3ddd8; font-size: 1.03rem; }

.hero-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-pills span { padding: 7px 11px; border: 1px solid rgba(154, 239, 221, 0.22); border-radius: 999px; color: #c3eee5; background: rgba(4, 25, 31, 0.2); font-size: 0.76rem; }

.hero-panel { padding: 26px; border: 1px solid rgba(157, 235, 220, 0.19); border-radius: 20px; background: rgba(5, 26, 32, 0.28); backdrop-filter: blur(7px); }
.panel-label { color: #62e0c4; }
.hero-panel p { margin: 15px 0 19px; color: #f1fffb; font-size: 1.12rem; line-height: 1.45; letter-spacing: -0.025em; }
.panel-rule { height: 1px; background: rgba(170, 228, 218, 0.2); }
.panel-foot { display: flex; align-items: center; gap: 8px; padding-top: 16px; color: #a9c9c3; font-size: 0.77rem; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(24, 181, 157, 0.14); }

.truth-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 18px;
  margin: 22px 0 34px;
  padding: 25px 28px;
  border: 1px solid #b6e7dc;
  border-radius: 20px;
  background: linear-gradient(105deg, #e9fbf6, #f7fffc);
}

.truth-icon { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--teal); color: #063c35; font-size: 1.2rem; font-weight: 700; }
.truth-card .card-kicker, .toc-card .card-kicker { color: #228d7d; }
.truth-card h2 { margin: 4px 0 5px; font-size: 1.18rem; line-height: 1.25; letter-spacing: -0.035em; }
.truth-card p:last-child { max-width: 850px; margin-bottom: 0; color: #4c6d69; font-size: 0.91rem; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 24px; align-items: start; }
.article-card { min-width: 0; padding: 46px 52px 54px; border: 1px solid var(--line); border-radius: 24px; background: var(--white); box-shadow: 0 12px 40px rgba(23, 63, 67, 0.045); }
.article-section { padding: 38px 0; border-top: 1px solid var(--line); scroll-margin-top: 20px; }
.article-section.first-section { padding-top: 0; border-top: 0; }
.section-number { color: #23937f; }
.section-number span { color: #8da19f; margin-left: 10px; letter-spacing: 0.07em; }
.article-section h2, .faq-section h2 { margin: 11px 0 13px; color: var(--navy); font-size: clamp(1.55rem, 2.8vw, 2rem); line-height: 1.18; letter-spacing: -0.055em; }
.article-section p, .faq-section p { color: #536b6c; font-size: 0.94rem; }
.article-section p:last-child { margin-bottom: 0; }
.article-section strong { color: #234a4d; }

.steps { display: grid; gap: 11px; margin-top: 22px; }
.step { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 13px; align-items: start; padding: 14px 15px; border: 1px solid #e2eeeb; border-radius: 14px; background: #fbfefd; }
.step > span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: var(--teal-soft); color: #168473; font-size: 0.78rem; font-weight: 700; }
.step h3 { margin: 1px 0 2px; color: #22484b; font-size: 0.92rem; letter-spacing: -0.02em; }
.step p { margin-bottom: 0; font-size: 0.83rem; line-height: 1.5; }

.compare-table { margin-top: 21px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; }
.compare-row { display: grid; grid-template-columns: minmax(130px, 0.52fr) minmax(0, 1fr); gap: 16px; padding: 14px 16px; border-top: 1px solid var(--line); color: #536b6c; font-size: 0.85rem; line-height: 1.5; }
.compare-row:first-child { border-top: 0; }
.compare-head { background: #f3faf7; color: #6d8380; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.compare-row strong { color: #1e4b4d; }
.muted-note { margin-top: 16px; color: #788b89 !important; font-size: 0.8rem !important; }

.check-list { display: grid; gap: 10px; padding: 0; margin: 21px 0 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 27px minmax(0, 1fr); gap: 12px; align-items: start; }
.check-list li > span { color: #25a48f; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; padding-top: 3px; }
.check-list p { margin-bottom: 0; font-size: 0.87rem; }
.tip-box { margin-top: 20px; padding: 14px 16px; border-left: 3px solid var(--teal); border-radius: 0 12px 12px 0; background: #effaf6; color: #4b706b; font-size: 0.83rem; }

.warning-box { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; align-items: start; margin-top: 20px; padding: 16px; border: 1px solid #f1d99d; border-radius: 13px; background: var(--amber-soft); }
.warning-box > span { width: 23px; height: 23px; display: grid; place-items: center; border-radius: 50%; background: var(--amber); color: #674710; font-weight: 700; }
.warning-box p { margin-bottom: 0; color: #6e5a35; font-size: 0.83rem; }

.reason-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 21px; }
.reason-grid > div { padding: 16px; border-radius: 13px; background: #f4faf8; }
.reason-grid h3 { margin: 0 0 4px; color: #20575a; font-size: 0.84rem; }
.reason-grid p { margin-bottom: 0; font-size: 0.78rem; line-height: 1.45; }

.safety-list { display: grid; gap: 10px; margin-top: 20px; }
.safety-list > div { display: flex; gap: 11px; align-items: flex-start; }
.safety-list span { flex: 0 0 auto; color: #15977f; font-size: 1.05rem; font-weight: 700; line-height: 1.35; }
.safety-list p { margin-bottom: 0; font-size: 0.87rem; }

.sources-section { padding-bottom: 42px; }
.source-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; margin-top: 21px; }
.source-links a { display: flex; flex-direction: column; gap: 4px; padding: 15px 16px; border: 1px solid #d6e9e4; border-radius: 13px; background: #f5fbf8; color: #205f5a; text-decoration: none; }
.source-links a:hover { border-color: var(--teal); background: #effaf6; }
.source-links span { font-size: 0.86rem; font-weight: 700; }
.source-links small { color: #718986; font-size: 0.72rem; line-height: 1.35; }

.faq-section { padding-top: 38px; border-top: 1px solid var(--line); scroll-margin-top: 20px; }
.faq-list { display: grid; gap: 9px; margin-top: 21px; }
details { border: 1px solid #dfebe8; border-radius: 13px; background: #fbfefd; }
summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 17px; color: #254e50; cursor: pointer; font-size: 0.88rem; font-weight: 700; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: #1ca28d; font-size: 1.25rem; font-weight: 500; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: -3px 17px 17px; color: #627a78; font-size: 0.83rem; }

.side-column { position: sticky; top: 20px; display: grid; gap: 13px; }
.toc-card { padding: 21px 20px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.toc-card .card-kicker { margin-bottom: 10px; }
.toc-card a { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid #edf3f1; color: #4c6869; font-size: 0.79rem; text-decoration: none; }
.toc-card a:last-child { border-bottom: 0; }
.toc-card a:hover { color: #168c79; }
.toc-card a span { color: #9aadaa; font-size: 0.68rem; font-weight: 700; }
.side-note { display: flex; gap: 11px; padding: 16px; border-radius: 16px; background: var(--navy); color: #b9d4d0; }
.side-note-icon { flex: 0 0 auto; width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid #6aa99e; border-radius: 50%; color: #73dfc5; font-size: 0.75rem; font-weight: 700; }
.side-note strong { display: block; margin: 0 0 5px; color: #f2fffc; font-size: 0.78rem; }
.side-note p { margin: 0; color: #9bbab5; font-size: 0.74rem; line-height: 1.48; }

.article-footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 0 45px; color: #7c918e; font-size: 0.75rem; }
.article-footer p { margin-bottom: 0; }
.article-footer a { color: #278878; font-weight: 700; text-decoration: none; white-space: nowrap; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 26px; padding: 45px 40px 42px; }
  .hero-panel { max-width: 520px; }
  .content-layout { grid-template-columns: 1fr; }
  .side-column { position: static; grid-template-columns: minmax(0, 1fr) minmax(220px, 0.7fr); }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 32px, 1120px); }
  .header-inner { min-height: 62px; }
  .header-note { display: none; }
  .breadcrumbs { padding-top: 18px; font-size: 0.7rem; }
  .hero { padding: 34px 23px 28px; border-radius: 22px; }
  h1 { font-size: clamp(2.05rem, 11vw, 3rem); }
  h1 em { font-size: 0.47em; }
  .lede { font-size: 0.9rem; }
  .hero-panel { padding: 20px; }
  .hero-panel p { font-size: 1rem; }
  .truth-card { grid-template-columns: 34px minmax(0, 1fr); gap: 12px; padding: 20px 18px; }
  .truth-icon { width: 30px; height: 30px; font-size: 1rem; }
  .truth-card h2 { font-size: 1.04rem; }
  .truth-card p:last-child { font-size: 0.82rem; }
  .article-card { padding: 31px 21px 38px; border-radius: 19px; }
  .article-section, .faq-section { padding: 30px 0; }
  .article-section h2, .faq-section h2 { font-size: 1.52rem; }
  .article-section p, .faq-section p { font-size: 0.88rem; }
  .compare-row { grid-template-columns: 1fr; gap: 3px; padding: 12px 13px; }
  .compare-head { display: none; }
  .reason-grid, .source-links { grid-template-columns: 1fr; }
  .side-column { grid-template-columns: 1fr; }
  .article-footer { flex-direction: column; gap: 8px; padding-bottom: 30px; }
}

@media (max-width: 360px) {
  .shell { width: calc(100% - 24px); }
  .hero { padding-left: 18px; padding-right: 18px; }
  .hero-pills span { padding: 6px 8px; font-size: 0.68rem; }
  .article-card { padding-left: 17px; padding-right: 17px; }
  .step { grid-template-columns: 27px minmax(0, 1fr); gap: 9px; padding: 12px; }
  .step > span { width: 26px; height: 26px; }
  summary { padding-left: 13px; padding-right: 13px; font-size: 0.82rem; }
  details p { margin-left: 13px; margin-right: 13px; }
}