:root {
  --green: #0b4d43;
  --green-dark: #073a33;
  --green-deep: #062f2a;
  --olive: #74814f;
  --sage: #dfe7dc;
  --sage-soft: #f0f4ec;
  --gold: #c69251;
  --gold-light: #dfb77f;
  --gold-soft: #f6ecdd;
  --cream: #fbf8f1;
  --cream-2: #f4efe5;
  --white: #fffefa;
  --ink: #17312b;
  --text: #435a54;
  --muted: #6f7f7a;
  --line: #deded3;
  --shadow-sm: 0 8px 28px rgba(7, 58, 51, .07);
  --shadow-md: 0 18px 55px rgba(7, 58, 51, .12);
  --shadow-lg: 0 28px 80px rgba(7, 58, 51, .16);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 34px;
  --wrap: 1180px;
  --article: 780px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3 { font-family: "Playfair Display", Georgia, serif; letter-spacing: -.025em; line-height: 1.08; margin: 0; }
p { margin: 0; }
.wrap { width: min(var(--wrap), calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; top: auto; }
.skip-link:focus { left: 16px; top: 16px; z-index: 9999; background: #fff; padding: 10px 14px; border-radius: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 58, 51, .96);
  border-bottom: 1px solid rgba(223, 183, 127, .24);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; min-width: 170px; }
.brand img { height: 34px; width: auto; filter: brightness(0) invert(1); }
.nav-links { display: flex; align-items: center; gap: 23px; color: rgba(255, 255, 255, .82); font-size: 13px; font-weight: 600; }
.nav-links a { transition: color .18s ease; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; }
.nav-links a[aria-current="page"] { position: relative; }
.nav-links a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -9px; height: 1px; background: var(--gold-light); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; background: transparent; border: 1px solid rgba(255, 255, 255, .25); color: #fff; border-radius: 10px; width: 42px; height: 42px; cursor: pointer; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-weight: 800;
  font-size: 14px;
  line-height: 1;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: var(--gold); color: #fff; box-shadow: 0 12px 30px rgba(198, 146, 81, .27); }
.btn-gold:hover { background: #d0a064; }
.btn-green { background: var(--green); color: #fff; box-shadow: 0 12px 30px rgba(11, 77, 67, .22); }
.btn-green:hover { background: var(--green-dark); }
.btn-outline { border-color: rgba(11, 77, 67, .28); color: var(--green); background: rgba(255, 255, 255, .54); }
.btn-outline:hover { background: #fff; border-color: var(--green); }
.btn-light { border-color: rgba(255, 255, 255, .32); color: #fff; background: rgba(255, 255, 255, .08); }
.btn-light:hover { background: rgba(255, 255, 255, .16); }
.btn-lg { min-height: 54px; padding: 0 28px; font-size: 15px; }

.breadcrumbs { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 22px; color: var(--muted); font-size: 12px; font-weight: 600; }
.breadcrumbs a:hover { color: var(--green); }
.breadcrumbs span[aria-hidden="true"] { opacity: .45; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid rgba(116, 129, 79, .24);
  background: rgba(116, 129, 79, .1);
  color: var(--olive);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.hub-hero, .article-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 14%, rgba(198, 146, 81, .13), transparent 27%),
    radial-gradient(circle at 7% 92%, rgba(116, 129, 79, .12), transparent 29%),
    linear-gradient(145deg, var(--sage-soft) 0%, var(--cream) 54%, #fffdfa 100%);
}
.hub-hero::before, .article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(11, 77, 67, .025) 1px, transparent 1px), linear-gradient(90deg, rgba(11, 77, 67, .025) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .44), transparent 82%);
}
.hub-hero { padding: 84px 0 78px; }
.hub-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 64px; align-items: center; }
.hub-hero h1, .article-hero h1 { color: var(--green-deep); }
.hub-hero h1 { font-size: clamp(44px, 5.5vw, 72px); margin: 18px 0 20px; }
.hub-hero h1 em, .article-hero h1 em { color: var(--green); font-style: italic; }
.hero-lead { max-width: 650px; color: var(--text); font-size: 17px; line-height: 1.78; }
.hero-actions { display: flex; gap: 11px; flex-wrap: wrap; margin-top: 30px; }
.hero-visual { position: relative; }
.hero-card { position: relative; background: rgba(255, 255, 255, .9); border: 1px solid rgba(11, 77, 67, .13); padding: 9px; border-radius: 38px; box-shadow: var(--shadow-lg); }
.hero-photo { position: relative; overflow: hidden; border-radius: 31px; aspect-ratio: 4 / 3; min-height: 430px; background: linear-gradient(160deg, #d6e0d6, #f0e8dd); }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-caption { position: absolute; left: 18px; right: 18px; bottom: 18px; padding: 18px 20px; border-radius: 18px; background: linear-gradient(135deg, rgba(7, 58, 51, .96), rgba(11, 77, 67, .90)); color: #fff; box-shadow: 0 16px 34px rgba(7, 58, 51, .22); }
.hero-caption strong { display: block; font-size: 18px; margin-bottom: 4px; }
.hero-caption span { display: block; color: rgba(255, 255, 255, .76); font-size: 13px; line-height: 1.45; }

.trust-strip { background: var(--green-deep); color: #fff; padding: 25px 0; border-top: 1px solid rgba(223, 183, 127, .23); border-bottom: 1px solid rgba(223, 183, 127, .23); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.trust-item { display: grid; grid-template-columns: 36px 1fr; gap: 13px; align-items: start; }
.trust-index { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(223, 183, 127, .45); color: var(--gold-light); font-family: "Playfair Display", serif; }
.trust-item strong { display: block; font-size: 13px; margin-bottom: 3px; }
.trust-item p { color: rgba(255, 255, 255, .68); font-size: 12px; line-height: 1.55; }

.section { padding: 90px 0; }
.section-white { background: var(--white); }
.section-soft { background: var(--cream-2); }
.section-dark { background: linear-gradient(150deg, var(--green), var(--green-deep)); color: #fff; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--gold); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.section-kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; }
.section-title { font-size: clamp(32px, 4vw, 51px); color: var(--green-deep); }
.section-dark .section-title { color: #fff; }
.section-intro { max-width: 740px; margin-top: 16px; color: var(--text); font-size: 16px; line-height: 1.75; }
.section-dark .section-intro { color: rgba(255, 255, 255, .75); }
.section-heading { max-width: 830px; margin-bottom: 46px; }
.section-heading.center { text-align: center; margin-inline: auto; }
.section-heading.center .section-intro { margin-inline: auto; }

.filters { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-button { border: 1px solid rgba(11, 77, 67, .18); background: rgba(255, 255, 255, .7); color: var(--green); padding: 10px 15px; border-radius: 999px; font-size: 12px; font-weight: 800; cursor: pointer; transition: .18s ease; }
.filter-button:hover, .filter-button.is-active { background: var(--green); color: #fff; border-color: var(--green); }
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease; }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.article-card-image { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--sage); }
.article-card-image img { width: 100%; height: 100%; object-fit: cover; }
.article-card-category { position: absolute; top: 14px; left: 14px; padding: 7px 10px; border-radius: 999px; background: rgba(7, 58, 51, .92); color: #fff; font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.article-card-body { padding: 25px; }
.article-card-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 13px; color: var(--muted); font-size: 11px; font-weight: 600; }
.article-card h2 { font-size: 27px; color: var(--green-deep); margin-bottom: 12px; }
.article-card p { color: var(--text); font-size: 13px; line-height: 1.7; }
.article-card-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--green); font-size: 13px; font-weight: 800; }
.empty-state { display: none; padding: 32px; border: 1px dashed rgba(11, 77, 67, .3); border-radius: var(--radius-md); background: rgba(255, 255, 255, .58); color: var(--text); }
.empty-state.is-visible { display: block; }

.topic-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.topic-card { min-height: 176px; padding: 24px; border-radius: var(--radius-md); border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow-sm); }
.topic-card b { display: block; color: var(--gold); font-family: "Playfair Display", serif; font-size: 25px; margin-bottom: 21px; }
.topic-card h3 { font-family: "Inter", sans-serif; color: var(--green); font-size: 16px; letter-spacing: -.01em; margin-bottom: 8px; }
.topic-card p { color: var(--text); font-size: 12px; line-height: 1.6; }
.standards-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 64px; align-items: center; }
.standards-list { display: grid; gap: 12px; }
.standard { display: grid; grid-template-columns: 42px 1fr; gap: 15px; padding: 18px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 17px; background: rgba(255, 255, 255, .06); }
.standard span { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; background: rgba(223, 183, 127, .14); color: var(--gold-light); font-weight: 800; }
.standard h3 { font-family: "Inter", sans-serif; font-size: 15px; letter-spacing: 0; margin-bottom: 5px; }
.standard p { color: rgba(255, 255, 255, .7); font-size: 12px; line-height: 1.55; }

.article-hero { padding: 70px 0 62px; }
.article-hero-inner { position: relative; z-index: 1; max-width: 980px; }
.article-hero h1 { max-width: 930px; font-size: clamp(41px, 5.2vw, 68px); margin: 18px 0 22px; }
.article-summary { max-width: 830px; color: var(--text); font-size: 18px; line-height: 1.76; }
.article-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 28px; color: var(--muted); font-size: 12px; font-weight: 600; }
.article-meta img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; border: 2px solid #fff; box-shadow: var(--shadow-sm); }
.article-meta-author strong { display: block; color: var(--green-deep); font-size: 13px; }
.article-meta-author span { display: block; }
.article-cover { margin-top: 42px; padding: 9px; background: rgba(255, 255, 255, .9); border: 1px solid rgba(11, 77, 67, .13); border-radius: 30px; box-shadow: var(--shadow-lg); }
.article-cover img { width: 100%; height: min(54vw, 570px); object-fit: cover; border-radius: 23px; }

.article-shell { display: grid; grid-template-columns: minmax(0, var(--article)) 270px; gap: 64px; align-items: start; padding: 76px 0 94px; }
.article-content { min-width: 0; }
.article-content > p, .article-content li { color: var(--text); font-size: 16px; line-height: 1.82; }
.article-content > p { margin: 0 0 23px; }
.article-content h2 { margin: 54px 0 18px; color: var(--green-deep); font-size: clamp(29px, 3.5vw, 40px); scroll-margin-top: 102px; }
.article-content h3 { margin: 31px 0 12px; color: var(--green); font-family: "Inter", sans-serif; font-size: 20px; letter-spacing: -.015em; line-height: 1.35; }
.article-content ul, .article-content ol { margin: 0 0 26px; padding-left: 22px; }
.article-content li { margin-bottom: 10px; padding-left: 5px; }
.article-content a:not(.btn) { color: var(--green); font-weight: 700; text-decoration: underline; text-decoration-color: rgba(11, 77, 67, .3); text-underline-offset: 3px; }
.lead-box { margin-bottom: 36px; padding: 27px 29px; border-left: 4px solid var(--gold); border-radius: 0 var(--radius-md) var(--radius-md) 0; background: var(--gold-soft); }
.lead-box strong { display: block; margin-bottom: 8px; color: var(--green-deep); font-size: 15px; }
.lead-box p { color: var(--text); font-size: 15px; line-height: 1.72; }
.checklist { display: grid; gap: 11px; margin: 26px 0 34px; padding: 0; list-style: none; }
.checklist li { position: relative; margin: 0; padding: 16px 18px 16px 52px; border: 1px solid var(--line); border-radius: 15px; background: var(--white); }
.checklist li::before { content: "✓"; position: absolute; left: 17px; top: 16px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--sage-soft); color: var(--green); font-weight: 900; font-size: 13px; }
.note-box { margin: 30px 0; padding: 24px 26px; border: 1px solid rgba(11, 77, 67, .16); border-radius: var(--radius-md); background: var(--sage-soft); }
.note-box strong { display: block; color: var(--green); margin-bottom: 7px; }
.note-box p { color: var(--text); font-size: 14px; line-height: 1.7; }
.article-aside { position: sticky; top: 98px; display: grid; gap: 15px; }
.toc, .aside-card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); box-shadow: var(--shadow-sm); }
.toc h2, .aside-card h2 { font-family: "Inter", sans-serif; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--green); margin: 0 0 15px; }
.toc ol { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { counter-increment: toc; }
.toc a { display: grid; grid-template-columns: 23px 1fr; gap: 7px; color: var(--text); font-size: 12px; line-height: 1.45; }
.toc a::before { content: counter(toc, decimal-leading-zero); color: var(--gold); font-weight: 800; }
.toc a:hover { color: var(--green); }
.aside-card p { color: var(--text); font-size: 12px; line-height: 1.6; margin-bottom: 15px; }

.author-box { display: grid; grid-template-columns: 116px 1fr; gap: 25px; margin-top: 58px; padding: 28px; border-radius: var(--radius-md); background: var(--green-deep); color: #fff; }
.author-box img { width: 116px; height: 116px; object-fit: cover; border-radius: 20px; }
.author-box .label { color: var(--gold-light); font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.author-box h2 { color: #fff; font-family: "Inter", sans-serif; font-size: 21px; margin: 7px 0 8px; }
.author-box p { color: rgba(255, 255, 255, .74); font-size: 13px; line-height: 1.65; }
.review-line { margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .78); font-size: 12px; }
.references { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
.references h2 { margin-top: 0; }
.references ol { padding-left: 20px; }
.references li { font-size: 13px; line-height: 1.65; }
.faq-list { display: grid; gap: 11px; }
.faq-item { background: var(--white); border: 1px solid var(--line); border-radius: 17px; overflow: hidden; }
.faq-item summary { display: flex; justify-content: space-between; align-items: center; gap: 20px; cursor: pointer; padding: 19px 22px; color: var(--green-deep); font-weight: 800; font-size: 14px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-plus { width: 28px; height: 28px; display: grid; place-items: center; flex: 0 0 28px; border-radius: 50%; background: var(--sage-soft); color: var(--green); transition: transform .2s ease; }
.faq-item[open] .faq-plus { transform: rotate(45deg); background: var(--green); color: #fff; }
.faq-answer { padding: 0 22px 20px; color: var(--text); font-size: 14px; line-height: 1.72; }

.cta-band { padding: 62px 0; background: linear-gradient(135deg, var(--olive), var(--green)); color: #fff; }
.cta-grid { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 36px; }
.cta-grid h2 { font-size: clamp(30px, 4vw, 46px); }
.cta-grid p { max-width: 690px; margin-top: 12px; color: rgba(255, 255, 255, .76); }

.site-footer { background: var(--green-deep); color: #fff; padding: 42px 0 26px; border-top: 1px solid rgba(208, 174, 120, .24); }
.footer-top { display: grid; grid-template-columns: 1.35fr .72fr .9fr; gap: 46px; padding-bottom: 30px; }
.footer-brand img { width: 160px; height: auto; filter: brightness(0) invert(1); margin-bottom: 14px; }
.footer-brand p, .footer-col p { color: rgba(255, 255, 255, .66); font-size: 12px; line-height: 1.7; }
.footer-col h3 { font-family: "Inter", sans-serif; font-size: 12px; color: var(--gold-light); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
.footer-col a { display: block; width: fit-content; color: rgba(255, 255, 255, .76); font-size: 12px; margin: 8px 0; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .12); }
.footer-bottom p { max-width: 900px; color: rgba(255, 255, 255, .53); font-size: 10px; line-height: 1.6; }
.footer-bottom span { color: var(--gold-light); font-size: 11px; font-weight: 800; white-space: nowrap; }

.floating-whatsapp { position: fixed; right: 20px; bottom: 20px; z-index: 90; width: 60px; height: 60px; display: grid; place-items: center; border-radius: 50%; background: #22ce6b; color: #fff; box-shadow: 0 12px 28px rgba(16, 47, 51, .28); }
.floating-whatsapp svg { width: 31px; height: 31px; fill: currentColor; }

@media (max-width: 1020px) {
  .nav-links { position: fixed; inset: 72px 0 auto 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 16px 24px 24px; background: var(--green-dark); border-top: 1px solid rgba(255, 255, 255, .12); box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .nav-links a[aria-current="page"]::after { display: none; }
  .menu-toggle { display: block; }
  .header-whatsapp { display: none; }
  .hub-hero-grid, .standards-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 720px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .article-shell { grid-template-columns: minmax(0, 1fr); }
  .article-aside { position: static; grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1.2fr .8fr .9fr; gap: 28px; }
}

@media (max-width: 720px) {
  .wrap { width: min(100% - 32px, var(--wrap)); }
  .nav { min-height: 66px; }
  .nav-links { inset-block-start: 66px; }
  .brand img { height: 30px; }
  .hub-hero, .article-hero { padding: 57px 0 50px; }
  .hub-hero-grid { gap: 38px; }
  .hub-hero h1, .article-hero h1 { font-size: clamp(38px, 11vw, 53px); }
  .hero-lead, .article-summary { font-size: 16px; }
  .hero-photo { min-height: 310px; }
  .trust-grid { grid-template-columns: 1fr; gap: 18px; }
  .section { padding: 66px 0; }
  .article-grid, .topic-grid { grid-template-columns: 1fr; }
  .article-shell { padding: 55px 0 72px; }
  .article-content > p, .article-content li { font-size: 15px; }
  .article-aside { grid-template-columns: 1fr; }
  .author-box { grid-template-columns: 78px 1fr; padding: 22px; gap: 18px; }
  .author-box img { width: 78px; height: 78px; border-radius: 16px; }
  .cta-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
