/* ==========================================================================
   Sightagen — Design System & Stylesheet
   ========================================================================== */

:root {
  /* Brand colors */
  --color-primary-bg: #273D36;
  --color-secondary-bg: #2D4F46;
  --color-white: #FFFFFF;
  --color-cream: #F5F1E8;
  --color-light-green: #E7EFEA;
  --color-gold: #C7A86B;
  --color-gold-dark: #B08F52;
  --color-dark-text: #17241F;
  --color-body-text: #3A4A44;
  --color-muted: #6B7A74;
  --color-border: #DDE4DF;

  /* Type */
  --font-heading: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing / layout */
  --max-width: 1180px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-soft: 0 12px 32px rgba(23, 36, 31, 0.10);
  --shadow-card: 0 6px 20px rgba(23, 36, 31, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-body-text);
  background: var(--color-cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-dark-text);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 600;
}

h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
p { margin: 0 0 1em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}
.section--tight { padding: 56px 0; }
.section--dark {
  background: var(--color-primary-bg);
  color: var(--color-cream);
}
.section--dark h2, .section--dark h3 { color: var(--color-white); }
.section--dark p { color: rgba(245,241,232,0.86); }
.section--alt-green { background: var(--color-secondary-bg); color: var(--color-cream); }
.section--alt-green h2, .section--alt-green h3 { color: var(--color-white); }
.section--alt-green p { color: rgba(245,241,232,0.86); }
.section--cream { background: var(--color-cream); }
.section--light-green { background: var(--color-light-green); }
.section--white { background: var(--color-white); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: 14px;
}
.section--dark .eyebrow, .section--alt-green .eyebrow { color: var(--color-gold); }

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head p { color: var(--color-muted); font-size: 1.08rem; }
.section--dark .section-head p, .section--alt-green .section-head p { color: rgba(245,241,232,0.86); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn--gold {
  background: var(--color-gold);
  color: var(--color-dark-text);
  box-shadow: 0 10px 24px rgba(199, 168, 107, 0.35);
}
.btn--gold:hover { background: var(--color-gold-dark); }

.btn--outline-light {
  border-color: rgba(245,241,232,0.55);
  color: var(--color-cream);
  background: transparent;
}
.btn--outline-light:hover { border-color: var(--color-cream); background: rgba(245,241,232,0.08); }

.btn--outline-dark {
  border-color: var(--color-primary-bg);
  color: var(--color-primary-bg);
  background: transparent;
}
.btn--outline-dark:hover { background: var(--color-primary-bg); color: var(--color-white); }

.btn--dark {
  background: var(--color-primary-bg);
  color: var(--color-white);
}
.btn--dark:hover { background: var(--color-secondary-bg); }

.btn--block { width: 100%; }
.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary-bg);
  border-bottom: 1px solid rgba(245,241,232,0.10);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.01em;
}
.nav__logo .mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--color-gold);
  display: flex; align-items: center; justify-content: center;
}
.nav__logo .mark svg { width: 18px; height: 18px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav__links a {
  color: rgba(245,241,232,0.85);
  font-weight: 500;
  font-size: 0.96rem;
  transition: color 0.15s ease;
}
.nav__links a:hover { color: var(--color-gold); }

.nav__actions { display: flex; align-items: center; gap: 18px; }
.nav__toggle {
  display: none;
  background: none;
  border: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
}
.nav__toggle svg { width: 22px; height: 22px; fill: var(--color-cream); }

.mobile-panel {
  display: none;
  flex-direction: column;
  background: var(--color-secondary-bg);
  padding: 8px 24px 24px;
}
.mobile-panel a {
  color: var(--color-cream);
  padding: 12px 0;
  border-bottom: 1px solid rgba(245,241,232,0.10);
  font-weight: 500;
}
.mobile-panel.is-open { display: flex; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(199,168,107,0.16), transparent 60%),
    linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-secondary-bg) 100%);
  color: var(--color-cream);
  padding: 84px 0 96px;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 { color: var(--color-white); }
.hero__sub {
  font-size: 1.15rem;
  color: rgba(245,241,232,0.88);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero__badges {
  display: flex;
  gap: 22px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.hero__badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(245,241,232,0.8);
}
.hero__badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-gold);
  flex-shrink: 0;
}
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.hero__blob {
  position: absolute;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(199,168,107,0.22), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--color-light-green);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.card__icon svg { width: 26px; height: 26px; stroke: var(--color-secondary-bg); }
.card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.card p { color: var(--color-muted); margin-bottom: 0; font-size: 0.97rem; }

.card--on-dark {
  background: rgba(245,241,232,0.06);
  border: 1px solid rgba(245,241,232,0.14);
}
.card--on-dark h3 { color: var(--color-white); }
.card--on-dark p { color: rgba(245,241,232,0.78); }
.card--on-dark .card__icon { background: rgba(199,168,107,0.18); }
.card--on-dark .card__icon svg { stroke: var(--color-gold); }

/* Numbered step cards */
.step-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
  position: relative;
  border: 1px solid var(--color-border);
}
.step-card__num {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  font-size: 1.1rem;
}
.step-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.step-card p { font-size: 0.95rem; color: var(--color-muted); margin: 0; }

/* ---------- Two column content ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split img { border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); }
.split-reverse .split { grid-template-columns: 1fr 1fr; }
.checklist { margin-top: 22px; }
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
  font-size: 0.99rem;
}
.checklist li svg {
  width: 20px; height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  stroke: var(--color-gold-dark);
}
.section--dark .checklist li svg, .section--alt-green .checklist li svg { stroke: var(--color-gold); }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item__q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-dark-text);
  gap: 20px;
}
.faq-item__q .plus {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--color-light-green);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: transform 0.2s ease;
}
.faq-item__q .plus::before, .faq-item__q .plus::after {
  content: '';
  position: absolute;
  background: var(--color-secondary-bg);
}
.faq-item__q .plus::before { width: 11px; height: 2px; }
.faq-item__q .plus::after { width: 2px; height: 11px; }
.faq-item.is-open .plus { transform: rotate(45deg); }
.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-item__a p { padding-bottom: 22px; color: var(--color-muted); margin: 0; }
.faq-item.is-open .faq-item__a { max-height: 600px; }

/* ---------- Blog cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.blog-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}
.blog-card__img { aspect-ratio: 16/10; overflow: hidden; }
.blog-card__img img { width: 100%; height: 100%; object-fit: cover; }
.blog-card__body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.blog-card__cat {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: 10px;
}
.blog-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.blog-card p { color: var(--color-muted); font-size: 0.94rem; flex: 1; }
.blog-card__meta {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
}
.blog-card__link {
  margin-top: 16px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-secondary-bg);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Article ---------- */
.article-hero {
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-secondary-bg));
  color: var(--color-white);
  padding: 64px 0 56px;
}
.breadcrumb {
  font-size: 0.85rem;
  color: rgba(245,241,232,0.7);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(245,241,232,0.7); }
.breadcrumb a:hover { color: var(--color-gold); }
.article-hero .eyebrow { color: var(--color-gold); }
.article-hero h1 { color: var(--color-white); max-width: 850px; }
.article-meta {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-size: 0.88rem; color: rgba(245,241,232,0.75);
  margin-top: 18px;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 64px 0;
}
.article-body h2 { margin-top: 1.6em; }
.article-body h3 { margin-top: 1.4em; }
.article-body p { font-size: 1.04rem; }
.article-body a { color: var(--color-secondary-bg); font-weight: 600; text-decoration: underline; text-decoration-color: var(--color-gold); text-underline-offset: 3px; }
.article-body ul, .article-body ol { margin: 0 0 1.2em; padding-left: 1.4em; }
.article-body li { margin-bottom: 0.5em; }
.article-body img { border-radius: var(--radius-md); margin: 2em 0; }
.article-body blockquote {
  border-left: 3px solid var(--color-gold);
  padding: 6px 0 6px 22px;
  margin: 2em 0;
  font-style: italic;
  color: var(--color-dark-text);
}
.callout {
  background: var(--color-light-green);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  margin: 2em 0;
  border: 1px solid var(--color-border);
}
.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--color-dark-text); }

.related-articles {
  border-top: 1px solid var(--color-border);
  margin-top: 3em;
  padding-top: 2.4em;
}
.related-articles h3 { margin-bottom: 20px; }
.related-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.related-list a {
  display: block;
  padding: 18px 20px;
  background: var(--color-light-green);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--color-dark-text);
  transition: background 0.15s ease;
}
.related-list a:hover { background: #dbe6de; }

/* ---------- Ingredient cards ---------- */
.ingredient-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 30px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.ingredient-card__name {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 14px;
}
.ingredient-card__badge {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--color-light-green);
  color: var(--color-secondary-bg);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  flex-shrink: 0;
}
.ingredient-card h3 { margin: 0; font-size: 1.1rem; }
.ingredient-card p { font-size: 0.95rem; color: var(--color-muted); }
.ingredient-card .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  background: rgba(199,168,107,0.14);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 14px;
}

/* ---------- Table (supplement facts) ---------- */
.facts-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.facts-table th, .facts-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}
.facts-table th { background: var(--color-light-green); font-weight: 700; }
.facts-table tr:last-child td { border-bottom: none; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- Pros / considerations ---------- */
.pc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.pc-card { border-radius: var(--radius-md); padding: 30px 28px; }
.pc-card--pro { background: var(--color-light-green); }
.pc-card--con { background: var(--color-cream); border: 1px solid var(--color-border); }
.pc-card h3 { margin-bottom: 16px; }
.pc-card ul li {
  display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.96rem;
  align-items: flex-start;
}
.pc-card ul li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--color-primary-bg), var(--color-secondary-bg));
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
}
.cta-band h2 { color: var(--color-white); }
.cta-band p { color: rgba(245,241,232,0.85); max-width: 560px; margin: 0 auto 30px; }
.cta-band .btn-row { justify-content: center; }

/* ---------- Disclaimer ---------- */
.disclaimer-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  font-size: 0.87rem;
  color: var(--color-muted);
  line-height: 1.7;
}
.disclaimer-box strong { color: var(--color-dark-text); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-bg);
  color: rgba(245,241,232,0.75);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(245,241,232,0.12);
}
.footer-brand .nav__logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.92rem; max-width: 300px; }
.footer-col h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-family: var(--font-body);
  font-weight: 700;
}
.footer-col li { margin-bottom: 12px; }
.footer-col a { font-size: 0.92rem; color: rgba(245,241,232,0.75); }
.footer-col a:hover { color: var(--color-gold); }
.footer-bottom {
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: rgba(245,241,232,0.55);
}
.footer-legal { max-width: 900px; font-size: 0.8rem; line-height: 1.7; color: rgba(245,241,232,0.5); margin-top: 22px; }

/* ---------- 404 ---------- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 0;
}
.error-page .code {
  font-family: var(--font-heading);
  font-size: 6rem;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: 10px;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 420px; margin: 0 auto; }
  .card-grid, .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
  .split .split__media { order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .pc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .section { padding: 60px 0; }
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__actions .btn { display: none; }
  .nav { flex-wrap: nowrap; }
  .nav__logo { font-size: 1.15rem; }
  .card-grid, .card-grid--2, .card-grid--4 { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .related-list { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 24px; }
  .hero { padding: 56px 0 64px; }
  .btn-row { flex-direction: column; align-items: stretch; }
  .btn-row .btn { width: 100%; }
}

/* === network upgrade: popup + sources === */
.np-pop {
  position: fixed; left: 18px; bottom: 18px; z-index: 60;
  display: flex; align-items: center; gap: 12px;
  width: 320px; max-width: calc(100vw - 36px);
  padding: 12px 38px 12px 12px;
  background: #fff; color: #1c1c1c;
  border: 1px solid rgba(0,0,0,0.10); border-radius: 16px;
  box-shadow: 0 18px 44px -18px rgba(0,0,0,0.45);
  font-family: inherit; text-align: left;
  transform: translateX(calc(-100% - 24px)); opacity: 0; visibility: hidden;
  transition: transform .5s cubic-bezier(.22,1,.36,1), opacity .5s ease, visibility .5s;
}
.np-pop.is-in { transform: translateX(0); opacity: 1; visibility: visible; }
.np-pop img {
  width: 52px; height: auto; flex: 0 0 52px;
  border-radius: 10px; border: 1px solid rgba(0,0,0,0.08); background: #fafafa;
}
.np-pop-body { min-width: 0; }
.np-pop-name { font-weight: 700; font-size: .9rem; line-height: 1.3; }
.np-pop-what { font-size: .82rem; opacity: .72; line-height: 1.4; }
.np-pop-when { font-size: .68rem; letter-spacing: .04em; text-transform: uppercase; opacity: .6; margin-top: 2px; }
.np-pop-close {
  position: absolute; top: 6px; right: 6px; width: 26px; height: 26px;
  border: 0; border-radius: 50%; background: transparent; color: inherit;
  opacity: .5; font-size: 1rem; line-height: 1; cursor: pointer;
}
.np-pop-close:hover { opacity: 1; background: rgba(0,0,0,0.06); }
@media (max-width: 560px) {
  /* not edge-to-edge on phones: a full-bleed card sits on top of the
     full-width CTA buttons these pages use, so leave the right side free */
  .np-pop { left: 10px; right: auto; bottom: 10px; width: min(300px, calc(100vw - 84px)); max-width: none; }
}
@media (prefers-reduced-motion: reduce) {
  .np-pop { transition: opacity .2s ease, visibility .2s; transform: none; }
}

.np-sources { padding: 56px 0; }
.np-sources .np-wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.np-sources h2 { margin: 0 0 10px; }
.np-sources .np-intro { opacity: .75; max-width: 62ch; margin: 0 0 26px; }
.np-ref-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.np-ref-list li { padding-left: 16px; border-left: 3px solid rgba(0,0,0,0.12); font-size: .95rem; }
.np-ref-list a { text-decoration: underline; text-underline-offset: 3px; font-weight: 600; }
.np-ref-src { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; opacity: .6; margin-top: 2px; }

/* === network upgrade: final CTA === */
.np-final { padding: 64px 0; }
.np-final .np-wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.np-final-inner {
  display: grid; grid-template-columns: minmax(0,300px) minmax(0,1fr);
  gap: 40px; align-items: center;
  background: #14100c; color: #f6efe7;
  border-radius: 24px; padding: 44px 40px;
}
.np-final-inner h2 { color: #fff; margin: 0 0 12px; }
.np-final-inner p { opacity: .82; margin: 0 0 24px; max-width: 56ch; }
.np-final-shot img {
  width: 100%; height: auto;          /* natural aspect ratio, never cropped */
  max-width: 300px; margin: 0 auto;
  filter: drop-shadow(0 18px 40px rgba(0,0,0,.5));
}
.np-final-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 15px 34px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  background: #f17e12; color: #fff; text-decoration: none;
  box-shadow: 0 12px 30px -12px rgba(241,126,18,.8);
}
.np-final-btn:hover { filter: brightness(1.07); }
.np-final-note { font-size: .78rem; letter-spacing: .04em; text-transform: uppercase; opacity: .6; margin: 18px 0 0; }
@media (max-width: 820px) {
  .np-final-inner { grid-template-columns: 1fr; text-align: center; padding: 34px 22px; }
  .np-final-inner p { margin-left: auto; margin-right: auto; }
  .np-final-shot img { max-width: 220px; }
}

/* === network upgrade: silo cross-links === */
.np-cross { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 32px 0; }
.np-cross a {
  display: block; padding: 16px 18px; border: 1px solid rgba(0,0,0,.12);
  border-radius: 14px; text-decoration: none; color: inherit; background: rgba(0,0,0,.015);
  transition: border-color .15s ease, transform .15s ease;
}
.np-cross a:hover { border-color: rgba(0,0,0,.35); transform: translateY(-2px); }
.np-cross span { display: block; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; opacity: .55; margin-bottom: 5px; }
.np-cross strong { font-weight: 700; font-size: .98rem; line-height: 1.3; }
.np-crumbs { font-size: .85rem; opacity: .75; margin: 0 0 4px; }
.np-crumbs a { text-decoration: none; color: inherit; border-bottom: 1px solid rgba(0,0,0,.25); }
.np-crumbs .sep { opacity: .45; margin: 0 7px; }