:root {
  --ink: #12151a;
  --slate: #1e2630;
  --mist: #e6e9ee;
  --paper: #eef1f5;
  --copper: #b45309;
  --copper-deep: #92400e;
  --steel: #334155;
  --muted: #5c6775;
  --line: #c9d0d9;
  --panel: #fafbfc;
  --radius: 4px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    linear-gradient(165deg, #d8dee8 0%, transparent 42%),
    linear-gradient(0deg, var(--paper), var(--paper));
  line-height: 1.55;
}

a { color: var(--copper-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--copper); }

.wrap { width: min(1080px, calc(100% - 2rem)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(238, 241, 245, 0.9);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 1rem;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.3rem;
  color: var(--ink); text-decoration: none; letter-spacing: -0.02em;
}
.brand span { color: var(--copper); }
.nav { display: flex; gap: 1.1rem; flex-wrap: wrap; font-size: 0.95rem; }
.nav a { color: var(--slate); text-decoration: none; }
.nav a:hover { color: var(--copper-deep); }

.hero-calc {
  padding: 3.75rem 0 3rem;
  border-bottom: 1px solid var(--line);
  animation: heroIn 0.65s ease-out;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
.hero-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: end;
}
.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.65rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 4.8vw, 3.25rem);
  line-height: 1.08; letter-spacing: -0.03em;
  margin: 0 0 1rem; max-width: 14ch;
}
.hero .lede {
  font-size: 1.12rem; color: var(--muted); max-width: 40ch; margin: 0 0 1.5rem;
}

.spread-panel {
  background: var(--ink);
  color: #e8ecf1;
  padding: 1.5rem 1.4rem 1.35rem;
  border: 1px solid #2a3340;
}
.spread-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #94a3b8;
  margin: 0 0 0.45rem;
}
.spread-asset {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 1.15rem;
}
.spread-rows { display: grid; gap: 0.65rem; }
.spread-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid #2f3a48;
  font-size: 0.92rem;
  color: #cbd5e1;
}
.spread-row strong {
  font-variant-numeric: tabular-nums;
  font-size: 1.15rem;
  color: #f8fafc;
}
.spread-delta { border-bottom: 0; padding-bottom: 0; }
.spread-delta .signal { color: #f59e0b; }
.spread-note {
  margin: 1.1rem 0 0;
  font-size: 0.8rem;
  color: #94a3b8;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.25rem 0 0; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius); padding: 0.8rem 1.2rem;
  font-weight: 650; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; font: inherit;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--slate); color: #fff; }
.btn-ghost { background: #fff; color: var(--slate); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--copper); color: var(--copper-deep); }

.section { padding: 3rem 0; }
.section-muted { background: #e4e8ee; border-block: 1px solid var(--line); }
.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 2rem);
  letter-spacing: -0.02em; margin: 0 0 0.5rem;
}
.section .sub { color: var(--muted); margin: 0 0 1.5rem; max-width: 50ch; }

.value-list {
  margin: 0;
  padding-left: 1.15rem;
  max-width: 52ch;
}
.value-list li { margin: 0.55rem 0; color: var(--slate); }

.complement {
  background: var(--ink);
  color: #e2e8f0;
  border: 0;
  padding: 2.5rem 0;
}
.complement a { color: #fbbf24; }
.complement-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #f59e0b;
  margin: 0 0 0.55rem;
}
.complement-line {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 0.5rem;
  max-width: 28ch;
  color: #f8fafc;
}
.complement-note {
  margin: 0;
  font-size: 0.95rem;
  color: #94a3b8;
}

.alert-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.35rem;
  max-width: 480px;
}
.alert-panel label { display: block; font-size: 0.9rem; font-weight: 600; margin: 0.75rem 0 0.35rem; }
.alert-panel label.consent {
  display: flex; gap: 0.55rem; align-items: flex-start;
  font-weight: 500; margin-top: 1rem;
}
.alert-panel label.consent input { width: auto; margin-top: 0.25rem; }
.alert-panel input, .alert-panel select {
  width: 100%; padding: 0.75rem 0.85rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  font: inherit; background: #fff;
}
.alert-panel .btn { width: 100%; margin-top: 1rem; }
.alert-panel .hint { font-size: 0.8rem; color: var(--muted); margin: 0.75rem 0 0; }
.alert-panel .msg { margin-top: 0.85rem; font-size: 0.95rem; min-height: 1.2em; }
.alert-panel .msg.ok { color: var(--copper-deep); }
.alert-panel .msg.err { color: #b91c1c; }
.cat-links { margin-top: 1.25rem; font-size: 0.9rem; color: var(--muted); }

.prose { max-width: 68ch; }
.prose h1 { font-family: var(--font-display); letter-spacing: -0.02em; }
.prose li { margin: 0.35rem 0; }

.site-footer {
  margin-top: 0; padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem;
  background: #e4e8ee;
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; }
.site-footer a { color: var(--muted); }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero-calc { padding-top: 2.75rem; }
  .nav { font-size: 0.88rem; gap: 0.75rem; }
  .cta-row .btn { width: 100%; }
}