/* SuchnaPath — original design system
   Deep teal #0F766E | Amber accent #F59E0B | Slate text | Clean, trustworthy */
:root {
  --bg: #FFFFFF;
  --bg-soft: #F0FDFA;
  --primary: #0F766E;
  --primary-dark: #115E59;
  --primary-deep: #134E4A;
  --primary-soft: #CCFBF1;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-soft: #FFFBEB;
  --heading: #1F2937;
  --body: #4B5563;
  --muted: #9CA3AF;
  --border: #E5E7EB;
  --green-soft: #ECFDF5;
  --green: #047857;
  --red-soft: #FEF2F2;
  --red: #B91C1C;
  --blue-soft: #EFF6FF;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 12px rgba(15, 23, 42, .06);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font); color: var(--body); background: var(--bg);
  font-size: 17px; line-height: 1.75; -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--heading); line-height: 1.3; font-weight: 700; }
h1 { font-size: 2.05rem; margin: 0 0 1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.5rem; margin: 2.4rem 0 1rem; padding-top: .4rem; }
h3 { font-size: 1.18rem; margin: 1.6rem 0 .6rem; }
p { margin: 0 0 1.1rem; }
ul, ol { margin: 0 0 1.2rem 1.3rem; }
li { margin-bottom: .45rem; }
table { width: 100%; border-collapse: collapse; margin: 0 0 1.4rem; font-size: .96rem; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
th { background: var(--primary-soft); color: var(--primary-deep); font-weight: 700; }
tr:nth-child(even) td { background: #FAFAFA; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.content-narrow { max-width: 780px; }

/* Header */
.site-header { background: var(--bg); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--heading); }
.brand:hover { text-decoration: none; }
.brand img { width: 38px; height: 38px; border-radius: 9px; flex: 0 0 38px; }
.brand small { display: block; font-size: .68rem; font-weight: 500; color: var(--muted); line-height: 1.2; }
.main-nav { display: flex; gap: 4px; align-items: center; }
.main-nav a { color: var(--heading); font-weight: 600; font-size: .95rem; padding: 9px 14px; border-radius: 8px; white-space: nowrap; }
.main-nav a:hover { background: var(--bg-soft); text-decoration: none; color: var(--primary); }
.main-nav a.active { color: var(--primary); background: var(--primary-soft); }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 1.2rem; cursor: pointer; color: var(--heading); }

/* Hero */
.hero { background: linear-gradient(180deg, var(--primary-soft) 0%, var(--bg) 100%); padding: 64px 0 56px; text-align: center; border-bottom: 1px solid var(--border); }
.hero h1 { font-size: 2.5rem; max-width: 780px; margin: 0 auto 1rem; }
.hero p.lead { font-size: 1.15rem; max-width: 660px; margin: 0 auto 1.8rem; }
.hero-badge { display: inline-block; background: #fff; border: 1px solid var(--border); color: var(--primary); font-size: .8rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 6px 14px; border-radius: 999px; margin-bottom: 1.1rem; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; font-weight: 700; border-radius: 10px; padding: 13px 26px; font-size: 1rem; border: none; cursor: pointer; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-accent { background: var(--accent); color: #1F2937; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; text-decoration: none; }
.btn-outline { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary-soft); text-decoration: none; }

/* Sections & cards */
.section { padding: 56px 0; }
.section-gray { background: var(--bg-soft); }
.section-title { text-align: center; margin-bottom: .6rem; }
.section-sub { text-align: center; max-width: 660px; margin: 0 auto 2.2rem; }
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .15s ease, box-shadow .15s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(15,23,42,.1); }
.card-icon { font-size: 1.9rem; margin-bottom: .7rem; }
.card h3 { font-size: 1.08rem; margin: 0 0 .5rem; }
.card h3 a { color: var(--heading); }
.card h3 a:hover { color: var(--primary); }
.card p { font-size: .94rem; margin-bottom: 1rem; flex: 1; }
.card-link { font-weight: 700; font-size: .94rem; }

/* Article */
.breadcrumbs { max-width: 1140px; margin: 0 auto; padding: 16px 20px 0; font-size: .9rem; color: var(--muted); }
.breadcrumbs a { color: var(--primary); }
.breadcrumbs .sep { margin: 0 6px; }
.article-layout { display: grid; grid-template-columns: 250px 1fr; gap: 40px; align-items: start; }
.article-meta { color: var(--muted); font-size: .92rem; margin-bottom: 1.4rem; }
.toc { position: sticky; top: 92px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; font-size: .93rem; }
.toc strong { display: block; margin-bottom: .6rem; color: var(--heading); }
.toc ul { margin: 0 0 0 1rem; }
.toc li { margin-bottom: .3rem; }
.article-body h2 { border-bottom: 2px solid var(--primary-soft); padding-bottom: .4rem; }

/* Callouts */
.callout { border-radius: var(--radius); padding: 16px 18px; margin: 0 0 1.4rem; border: 1px solid; font-size: .97rem; }
.callout strong { display: block; margin-bottom: .25rem; }
.callout-tip { background: var(--green-soft); border-color: #A7F3D0; color: #065F46; }
.callout-warn { background: var(--accent-soft); border-color: #FDE68A; color: #92400E; }
.callout-official { background: var(--blue-soft); border-color: #BFDBFE; color: #1E40AF; }
.callout-verify { background: var(--red-soft); border-color: #FECACA; color: #991B1B; }

/* Steps */
.steps { margin: 0 0 1.4rem; }
.step { display: flex; gap: 16px; margin-bottom: 1.1rem; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.step-num { flex: 0 0 36px; width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; counter-increment: step; }
.steps { counter-reset: step; }
.step-num::after { content: counter(step); }
.step h3 { margin: 0 0 .3rem; font-size: 1.05rem; }
.step p { margin: 0; font-size: .96rem; }

/* FAQ */
.faq { margin: 0 0 1.4rem; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; background: #fff; border: none; padding: 15px 18px; font-size: 1rem; font-weight: 700; color: var(--heading); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-family: var(--font); }
.faq-q:hover { background: var(--bg-soft); }
.faq-icon { font-size: 1.3rem; color: var(--primary); flex: 0 0 auto; }
.faq-a { display: none; padding: 0 18px 16px; font-size: .96rem; }
.faq-a p { margin: 0; }
.faq-item.open .faq-a { display: block; }
.faq-item.open .faq-icon { transform: rotate(45deg); }

/* Related */
.related { margin-top: 2.4rem; border-top: 1px solid var(--border); padding-top: 1.6rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 1rem; }
.related-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; background: var(--bg-soft); }
.related-card h4 { margin: 0 0 .3rem; font-size: 1rem; }
.related-card p { margin: 0; font-size: .9rem; }

/* Utility pages */
.page-head { background: var(--primary-soft); border-bottom: 1px solid var(--border); padding: 48px 0 36px; }
.page-head h1 { margin-bottom: .5rem; }
.page-body { padding: 40px 0 56px; }

/* Footer */
.site-footer { background: var(--primary-deep); color: #CBD5E1; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding: 48px 0 32px; }
.footer-brand { color: #fff; font-weight: 800; font-size: 1.1rem; display: block; margin-bottom: .6rem; }
.footer-grid p { font-size: .92rem; }
.footer-h { color: #fff; font-weight: 700; margin-bottom: .8rem; font-size: .95rem; }
.footer-grid ul { list-style: none; margin: 0; }
.footer-grid li { margin-bottom: .45rem; }
.footer-grid a { color: #CBD5E1; font-size: .92rem; }
.footer-grid a:hover { color: #fff; }
.disclaimer-box { border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius); padding: 16px 18px; font-size: .88rem; margin-bottom: 24px; background: rgba(255,255,255,.05); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); padding: 18px 0 26px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .86rem; }

/* Date stamp */
.date-stamp { display: inline-block; background: var(--primary-soft); color: var(--primary-deep); font-size: .82rem; font-weight: 700; padding: 4px 12px; border-radius: 999px; margin-bottom: 1rem; }

/* Responsive */
@media (max-width: 960px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .toc { position: static; margin-bottom: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 1.9rem; }
}
@media (max-width: 640px) {
  .card-grid, .card-grid.cols-2, .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; border-bottom: 1px solid var(--border); padding: 8px 16px 16px; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .site-header { position: sticky; }
  .header-inner { position: relative; }
  .hero { padding: 44px 0 40px; }
  h1 { font-size: 1.65rem; }
  table { font-size: .85rem; }
}