*, *::before, *::after { box-sizing: border-box; }

:root {
  --ink: #172334;
  --ink-strong: #0f1724;
  --text: #243041;
  --muted: #5d6a7c;
  --accent: #1d6b57;
  --accent-strong: #155241;
  --accent-soft: #dcefe8;
  --surface: #ffffff;
  --surface-alt: #f5f7fa;
  --surface-band: #eef3f7;
  --border: #d8e0e8;
  --page: #fbfcfd;
  --shadow: rgba(15, 23, 36, 0.08);
  --max: 72rem;
  --content: 50rem;
  --radius: 16px;
  --radius-sm: 10px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --serif: Iowan Old Style, Charter, Cambria, Georgia, serif;
}

html {
  background: var(--page);
  color: var(--text);
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(255,255,255,0.9), transparent 30rem),
    var(--page);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.12em;
}

a:hover,
a:focus-visible { color: var(--accent-strong); }

p, ul, ol { margin-top: 0; }

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 23, 36, 0.96);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
}

nav .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  min-height: 4.1rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

nav .logo {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: #f8fbff;
  text-decoration: none;
  white-space: nowrap;
}

.logo-mark {
  width: 2.1rem;
  height: 2.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #2a7a66, #194b3f);
  color: #f8fbff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 10px 20px -16px rgba(0,0,0,0.6);
}

.logo-wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 0.08rem;
}

.logo-name {
  color: #f8fbff;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.logo-domain {
  color: rgba(248, 251, 255, 0.72);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a {
  color: rgba(248, 251, 255, 0.82);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-active,
.nav-links a[aria-current] {
  color: #ffffff;
  background: rgba(255,255,255,0.12);
}

.hero {
  padding: 4.4rem 1.25rem 3.2rem;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.78), rgba(255,255,255,0)),
    linear-gradient(135deg, #edf5f2 0%, #f8fafc 52%, #e6eef4 100%);
  border-bottom: 1px solid var(--border);
}

.hero-inner,
.hero .container,
section .container,
main,
.site-footer .inner {
  max-width: var(--max);
  margin: 0 auto;
}

.hero h1 {
  max-width: 46rem;
  margin: 0;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.hero p,
.hero .sub {
  max-width: 42rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-badges {
  display: flex;
  gap: 0.6rem 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.38rem 0.78rem;
  border-radius: 999px;
  background: rgba(29, 107, 87, 0.08);
  border: 1px solid rgba(29, 107, 87, 0.16);
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 650;
}

section {
  padding: 3.5rem 1.25rem;
}

section.alt {
  background: var(--surface-band);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

main {
  max-width: var(--content);
  padding: 3rem 1.25rem 4.5rem;
}

main > * + * { margin-top: 1rem; }

.container {
  max-width: var(--content);
  margin: 0 auto;
}

.home-main,
.hub-main {
  max-width: var(--max);
}

.home-main > * + *,
.hub-main > * + * { margin-top: 0; }

h1, h2, h3, h4 {
  color: var(--ink-strong);
  font-family: var(--serif);
  margin-top: 0;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.25;
  margin-bottom: 0.45rem;
}

.section-intro,
.section-lead,
.eyebrow {
  color: var(--muted);
}

.section-intro,
.section-lead {
  max-width: 44rem;
  margin-bottom: 1.8rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card-grid,
.path-grid,
.topic-grid,
.tools-grid {
  display: grid;
  gap: 1rem;
}

.card-grid,
.tools-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.path-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.topic-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.path-card,
.topic-card,
.tool-card,
.note-box,
.cta-box,
.table-wrap,
.mini-callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px -34px var(--shadow);
}

.card,
.path-card,
.topic-card,
.tool-card,
.note-box,
.mini-callout {
  padding: 1.35rem;
}

.path-card,
.topic-card,
.tool-card,
.card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.path-card p,
.topic-card p,
.tool-card p,
.card p,
.note-box p,
.mini-callout p {
  color: var(--muted);
  margin-bottom: 0;
}

.card ul,
.path-card ul,
.topic-card ul,
.tool-card ul,
.note-box ul {
  margin: 0.2rem 0 0 1.15rem;
  color: var(--text);
}

.card ul li,
.path-card ul li,
.topic-card ul li,
.tool-card ul li,
.note-box ul li {
  margin-bottom: 0.42rem;
}

.card .meta,
.path-card .meta,
.topic-card .meta,
.tool-card .meta {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.link-list li { margin: 0; }

.link-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-weight: 650;
  text-decoration: none;
}

.link-list a:hover,
.link-list a:focus-visible { text-decoration: underline; }

.link-list span,
.link-note {
  color: var(--muted);
  font-size: 0.88rem;
}

.quick-links {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.quick-links a,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.8rem 1.05rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.btn-primary,
.quick-links a {
  background: var(--ink);
  color: #ffffff;
}

.btn-primary:hover,
.quick-links a:hover,
.btn-primary:focus-visible,
.quick-links a:focus-visible {
  background: var(--ink-strong);
  color: #ffffff;
}

.btn-secondary {
  background: rgba(29, 107, 87, 0.08);
  color: var(--accent-strong);
  border: 1px solid rgba(29, 107, 87, 0.18);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(29, 107, 87, 0.13);
  color: var(--accent-strong);
}

.table-wrap { overflow-x: auto; padding: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th {
  background: var(--ink);
  color: #ffffff;
  text-align: left;
  padding: 0.9rem 1rem;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

td {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tr:nth-child(even) td { background: rgba(238, 243, 247, 0.75); }

.good { color: #0b7a52; font-weight: 700; }
.bad { color: #a23434; font-weight: 700; }
.ok { color: #a46b15; font-weight: 700; }

.caveat,
.info-box,
.warning-box,
.example-box,
.affiliate-note,
.disclaimer,
.toc,
.decision-tree,
.result-order {
  max-width: var(--content);
  margin-left: auto;
  margin-right: auto;
  border-radius: var(--radius-sm);
}

.disclaimer {
  margin-top: 2rem;
  padding: 1rem 0 0;
  font-size: 0.84rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  background: #f1f5f8;
}

.site-footer .inner {
  padding: 2rem 1.25rem 2.3rem;
}

.site-footer .footer-links {
  display: flex;
  gap: 0.8rem 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}

.site-footer .footer-links a {
  font-weight: 650;
  text-decoration: none;
}

.site-footer p {
  max-width: 42rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .card-grid,
  .path-grid,
  .topic-grid,
  .tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  nav .inner {
    align-items: flex-start;
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
  }

  .nav-links {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
  }

  .hero {
    padding-top: 3.6rem;
    padding-bottom: 2.7rem;
  }

  .hero h1 { font-size: clamp(2rem, 10vw, 2.9rem); }

  .card-grid,
  .path-grid,
  .topic-grid,
  .tools-grid {
    grid-template-columns: 1fr;
  }

  section { padding-top: 2.8rem; padding-bottom: 2.8rem; }
}