:root {
  --navy: #0D1426;
  --navy-mid: #0D111E;
  --navy-light: #1a2340;
  --teal: #00C4A1;
  --gold: #f0a500;
  --white: #F4F6F8;
  --muted: #8a94a6;
  --muted-soft: #6b7a99;
  --border: rgba(0, 196, 161, 0.15);
  --line: rgba(255,255,255,0.09);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Libre Franklin', sans-serif;
  --font-tech: 'Space Grotesk', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); }

/* ─── HEADER ─── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13,20,38,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.esn-mark {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.04em;
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
  font-size: 1.6rem;
}
.esn-mark::after {
  content: '';
  flex: none;
  width: 0.12em;
  height: 0.12em;
  margin-left: 0.07em;
  background: var(--teal);
  transform: rotate(45deg);
}
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
  font-family: var(--font-tech);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal); }
@media (max-width: 768px) {
  nav, header { flex-wrap: wrap; row-gap: 12px; }
  .nav-links { order: 3; width: 100%; justify-content: center; flex-wrap: wrap; gap: 10px 20px; }
  .nav-links a { font-size: 0.74rem; letter-spacing: 0.06em; }
}

.wrap { max-width: 1000px; margin: 0 auto; padding: 0 60px; }

/* ─── BREADCRUMB ─── */
.breadcrumb {
  padding: 20px 0 0;
  font-family: var(--font-tech);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--muted-soft);
}
.breadcrumb a { color: var(--muted-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb span[aria-current] { color: var(--muted); }

/* ─── HERO / POSITIONING ─── */
.hero { padding-top: 40px; padding-bottom: 64px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.eyebrow {
  font-family: var(--font-tech);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--teal); }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.15;
  margin-bottom: 22px;
}
.hero p { color: var(--muted); font-size: 1.06rem; max-width: 64ch; margin-bottom: 18px; }
.hero p strong, .hero p b { color: var(--white); font-weight: 500; }

/* ─── ENGAGEMENT SNAPSHOT (aside) ─── */
.snapshot {
  border-left: 2px solid var(--teal);
  padding-left: 22px;
}
.tag {
  display: inline-block;
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--border);
  padding: 3px 9px;
  margin-bottom: 14px;
}
.price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 6px;
}
.price .unit { font-family: var(--font-tech); font-size: 0.8rem; color: var(--muted); letter-spacing: 0.04em; }
.price-note {
  font-family: var(--font-tech);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--muted-soft);
  margin-bottom: 18px;
  display: block;
}
.cta-btn {
  display: inline-block;
  font-family: var(--font-tech);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 11px 20px;
  transition: all 0.2s;
  cursor: pointer;
}
.cta-btn.solid { background: var(--teal); color: var(--navy); font-weight: 500; }
.cta-btn.solid:hover { background: #2fe0c0; }
.cta-btn.ghost { border: 1px solid var(--border); color: var(--teal); }
.cta-btn.ghost:hover { border-color: var(--teal); background: rgba(0,196,161,0.06); }

/* ─── SECTION SHELL ─── */
section { padding: 56px 0; border-bottom: 1px solid var(--line); }
.section-label {
  font-family: var(--font-tech);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
}
h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  margin-bottom: 28px;
}
.prose p { color: var(--muted); font-size: 1.04rem; max-width: 68ch; margin-bottom: 18px; }
.prose p strong { color: var(--white); font-weight: 500; }
.prose ul { list-style: none; max-width: 68ch; }
.prose ul li {
  color: var(--muted);
  font-size: 1.02rem;
  padding: 12px 0 12px 26px;
  border-top: 1px solid var(--line);
  position: relative;
}
.prose ul li:first-child { border-top: none; }
.prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 21px;
  width: 8px;
  height: 8px;
  background: var(--teal);
  transform: rotate(45deg);
}

/* ─── FAQ ─── */
.faq-item { padding: 26px 0; border-top: 1px solid var(--line); }
.faq-item:first-of-type { border-top: none; }
.faq-item h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 10px;
  line-height: 1.3;
}
.faq-item p { color: var(--muted); font-size: 1rem; max-width: 68ch; }

/* ─── CLOSING CTA ─── */
.closer { text-align: left; }
.closer .cta-row { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; margin-top: 8px; }

/* ─── FOOTER ─── */
footer { padding: 40px 60px; text-align: center; color: var(--muted-soft); font-size: 0.82rem; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--teal); }

@media (max-width: 820px) {
  header { padding: 16px 24px; }
  .wrap { padding: 0 24px; }
  .hero { grid-template-columns: 1fr; gap: 24px; }
  .snapshot { border-left: none; border-top: 2px solid var(--teal); padding-left: 0; padding-top: 18px; }
  footer { padding: 32px 24px; }
}