:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #eef4f4;
  --ink: #132033;
  --muted: #59677a;
  --line: #dce3ea;
  --navy: #0b1220;
  --navy-2: #162238;
  --teal: #0e8f86;
  --teal-dark: #08736c;
  --teal-soft: #dff4f1;
  --blue-soft: #e9f0ff;
  --blue: #315fa8;
  --warm: #f5efe3;
  --shadow: 0 18px 50px rgba(16, 35, 55, 0.08);
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { max-width: 100%; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 8px;
  background: #fff;
  color: #000;
}
.skip-link:focus { top: 12px; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 248, 251, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220, 227, 234, 0.9);
}
.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--navy);
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #455469;
  font-size: 0.94rem;
  font-weight: 700;
}
.nav a { text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--teal-dark); }

.hero {
  overflow: hidden;
  padding: 92px 0 76px;
  background:
    radial-gradient(circle at 85% 5%, rgba(14, 143, 134, 0.15), transparent 30%),
    radial-gradient(circle at 12% 86%, rgba(49, 95, 168, 0.10), transparent 26%),
    linear-gradient(180deg, #fbfcfe 0%, #f2f7f8 100%);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 58px;
  align-items: center;
}
.eyebrow, .kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.035em; margin-top: 0; }
h1 {
  max-width: 840px;
  margin-bottom: 22px;
  font-size: clamp(2.55rem, 6vw, 5.15rem);
}
.hero-lead {
  max-width: 760px;
  margin: 0;
  color: #46566a;
  font-size: clamp(1.05rem, 1.6vw, 1.24rem);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 800;
  line-height: 1.25;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid rgba(14, 143, 134, .28); outline-offset: 3px; }
.btn-primary { background: var(--teal); color: #fff; box-shadow: 0 12px 28px rgba(14, 143, 134, .20); }
.btn-primary:hover { background: var(--teal-dark); }
.btn-secondary { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-dark { background: var(--navy); color: #fff; }
.btn.full { width: 100%; }
.hero-note {
  margin-top: 20px;
  max-width: 720px;
  color: #6b7889;
  font-size: 0.9rem;
}
.hero-panel {
  padding: 28px;
  border-radius: 24px;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(213, 224, 228, .95);
  box-shadow: var(--shadow);
}
.hero-panel-title {
  margin-bottom: 12px;
  font-size: 1.08rem;
  font-weight: 850;
}
.signal-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: #5a6879;
}
.signal-row strong { color: var(--ink); text-align: right; }
.hero-panel-foot {
  padding-top: 18px;
  color: #667486;
  font-size: 0.9rem;
}

.section { padding: 86px 0; }
.section-soft { background: var(--surface-2); }
.section-dark { background: var(--navy); color: #fff; }
.section-accent { background: #edf5f3; border-top: 1px solid #d8e7e3; border-bottom: 1px solid #d8e7e3; }
.section-heading { max-width: 850px; margin-bottom: 38px; }
.section-heading.narrow { max-width: 760px; }
.section-heading h2, .content-split h2, .two-column-copy h2, .source-box h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.15rem);
}
.section-heading p, .content-split p, .two-column-copy p, .source-box p { color: var(--muted); }
.section-heading.light p { color: #aeb8c7; }
.section-dark .kicker { color: #69d4ca; }

.product-grid, .offer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.product-card, .offer-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 10px 34px rgba(17, 38, 58, .05);
}
.product-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
}
.easy-card::before { background: var(--blue); }
.booster-card::before { background: var(--teal); }
.product-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.product-label { font-size: 1.05rem; font-weight: 900; }
.status-pill, .offer-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #edf2f8;
  color: #42536a;
  font-size: 0.78rem;
  font-weight: 800;
}
.product-card h3, .offer-card h3 { margin-bottom: 14px; font-size: 1.55rem; }
.product-card p, .offer-card p { color: var(--muted); }
.check-list { margin: 22px 0 0; padding: 0; list-style: none; }
.check-list li {
  position: relative;
  padding: 9px 0 9px 28px;
  border-top: 1px solid #edf0f4;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 2px;
  top: 9px;
  color: var(--teal-dark);
  font-weight: 900;
}

.content-split {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 70px;
  align-items: start;
}
.prose p:first-child { margin-top: 0; }
.prose p:last-child { margin-bottom: 0; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 38px rgba(18, 38, 58, .05);
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
thead th { background: #f7f9fb; color: #34445a; font-size: .88rem; text-transform: uppercase; letter-spacing: .05em; }
tbody th { width: 27%; color: var(--ink); }
tbody td { color: #526176; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
.table-note { margin: 14px 4px 0; color: #69778a; font-size: .9rem; }

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.scenario-card {
  padding: 26px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 18px;
  background: rgba(255,255,255,.045);
}
.scenario-no { color: #69d4ca; font-size: .78rem; font-weight: 900; letter-spacing: .12em; }
.scenario-card h3 { margin: 12px 0; font-size: 1.22rem; }
.scenario-card p { margin: 0; color: #b7c1cf; font-size: .96rem; }

.two-column-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 60px;
}
.two-column-copy article {
  padding-right: 18px;
}

.offer-card { padding: 30px; }
.offer-badge { margin-bottom: 18px; background: var(--teal-soft); color: #126b65; }
.offer-card .btn { margin-top: 18px; }
.deep-dive {
  margin-top: 26px;
  padding: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid #d9e5e2;
}
.deep-dive h3 { margin-bottom: 10px; font-size: 1.55rem; }
.deep-dive p { max-width: 760px; margin: 0; color: var(--muted); }
.deep-dive .btn { flex: 0 0 auto; max-width: 360px; text-align: center; }

.faq-wrap { max-width: 920px; }
.faq-list { display: grid; gap: 12px; }
details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(16, 35, 55, .035);
}
summary {
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 850;
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--teal-dark); font-size: 1.35rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 0; padding: 0 22px 20px; color: var(--muted); }

.sources { padding-top: 18px; }
.source-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.source-box h2 { font-size: 1.8rem; }
.source-links { display: grid; align-content: start; }
.source-links a {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: #315a77;
  font-weight: 700;
  text-decoration: none;
}
.source-links a:hover { color: var(--teal-dark); }

.site-footer {
  margin-top: 78px;
  padding: 44px 0;
  background: #09111e;
  color: #fff;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.footer-brand { margin-bottom: 14px; }
.site-footer p { max-width: 560px; color: #a9b5c5; font-size: .92rem; }
.footer-note { justify-self: end; }

@media (max-width: 980px) {
  .hero { padding-top: 70px; }
  .hero-grid, .content-split, .source-box { grid-template-columns: 1fr; gap: 34px; }
  .hero-panel { max-width: 680px; }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .deep-dive { align-items: flex-start; flex-direction: column; }
  .deep-dive .btn { max-width: none; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 28px, var(--max)); }
  .nav-wrap { min-height: 66px; align-items: center; flex-wrap: wrap; gap: 8px 18px; padding: 10px 0; }
  .brand { font-size: .94rem; }
  .brand-mark { width: 34px; height: 34px; }
  .nav { width: 100%; gap: 18px; overflow-x: auto; padding: 2px 0 4px; font-size: .83rem; white-space: nowrap; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .hero { padding: 58px 0 54px; }
  h1 { font-size: clamp(2.35rem, 12vw, 3.65rem); }
  .hero-actions .btn { width: 100%; }
  .section { padding: 64px 0; }
  .product-grid, .offer-grid, .two-column-copy, .footer-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .product-card, .offer-card { padding: 24px; }
  .product-topline { align-items: flex-start; flex-direction: column; }
  .source-box { padding: 26px; }
  .footer-note { justify-self: start; }
}

@media (max-width: 420px) {
  .container { width: min(100% - 22px, var(--max)); }
  .hero-panel, .product-card, .offer-card, .source-box, .deep-dive { border-radius: 17px; }
  .hero-panel { padding: 22px; }
  .signal-row { flex-direction: column; gap: 3px; }
  .signal-row strong { text-align: left; }
  .btn { font-size: .93rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}