:root {
  --page-bg: oklch(13% 0.01 230);
  --surface: oklch(17% 0.014 230);
  --surface-raised: oklch(20% 0.016 230);
  --line: oklch(72% 0.11 215 / 0.22);
  --text: oklch(94% 0.015 220);
  --body: oklch(82% 0.025 220);
  --muted: oklch(70% 0.03 220);
  --cyan: oklch(79% 0.15 210);
  --orange: oklch(72% 0.18 45);
  --success: oklch(76% 0.13 155);
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --measure: 70ch;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: "Outfit", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--cyan); }
a:hover { color: var(--text); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

.skip-link {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--text);
  color: var(--page-bg);
  transform: translateY(-120%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: oklch(13% 0.01 230 / 0.94);
  backdrop-filter: blur(18px);
}
.nav-shell {
  width: min(1160px, calc(100% - 2rem));
  min-height: 4.75rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 117px; height: 58px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); }
.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--body);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); }
.nav-links .button { color: oklch(14% 0.02 220); }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--cyan);
  color: oklch(14% 0.02 220);
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 150ms cubic-bezier(0.25, 1, 0.5, 1), background-color 150ms;
}
.button:hover { color: oklch(14% 0.02 220); transform: translateY(-1px); }
.button.secondary { border-color: var(--line); background: transparent; color: var(--text); }

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 18%, oklch(79% 0.15 210 / 0.1), transparent 36%);
  pointer-events: none;
}
.hero-shell {
  width: min(1160px, calc(100% - 2rem));
  margin-inline: auto;
  padding-block: clamp(4.5rem, 9vw, 8rem);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}
.eyebrow, .section-label {
  margin: 0 0 var(--space-md);
  color: var(--cyan);
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
h1, h2, h3 { font-family: "Orbitron", "Segoe UI", sans-serif; text-wrap: balance; }
h1 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.3rem, 6vw, 5.25rem);
  line-height: 1.03;
  letter-spacing: -0.035em;
}
h2 { margin: 0; font-size: clamp(1.7rem, 3.8vw, 3rem); line-height: 1.14; }
h3 { margin: 0; font-size: 1.05rem; line-height: 1.35; }
.hero-lead {
  max-width: 58ch;
  margin: var(--space-lg) 0 0;
  color: var(--body);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-xl); }
.hero-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--surface);
}
.hero-figure img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-figure figcaption { padding: var(--space-sm) var(--space-md); color: var(--muted); font-size: 0.82rem; }

.content-section { padding-block: clamp(4rem, 8vw, 7rem); }
.content-section.alt { border-block: 1px solid var(--line); background: var(--surface); }
.shell { width: min(1160px, calc(100% - 2rem)); margin-inline: auto; }
.intro-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.prose { max-width: var(--measure); color: var(--body); }
.prose p { margin: 0 0 var(--space-md); }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--text); }

.price-panel {
  margin: 0 0 var(--space-xl);
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, oklch(20% 0.035 220 / 0.92), oklch(15% 0.018 230 / 0.96));
  box-shadow: inset 0 1px oklch(92% 0.02 220 / 0.04), 0 24px 70px oklch(4% 0.01 230 / 0.22);
}
.price-panel > span {
  display: block;
  color: var(--cyan);
  font-family: "Orbitron", "Segoe UI", sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.price-panel > strong {
  display: block;
  margin-top: var(--space-xs);
  color: var(--text);
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
}
.price-panel > p { margin: var(--space-md) 0 0; color: var(--muted); }

.principles {
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--line);
}
.principle {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: var(--space-lg);
  padding-block: var(--space-xl);
  border-bottom: 1px solid var(--line);
}
.principle-number { color: var(--orange); font-family: "Orbitron", sans-serif; font-weight: 800; }
.principle p { max-width: 62ch; margin: var(--space-xs) 0 0; color: var(--muted); }

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}
.fact { padding: var(--space-xl); }
.fact + .fact { border-left: 1px solid var(--line); }
.fact strong { display: block; color: var(--cyan); font-family: "Orbitron", sans-serif; font-size: 1.05rem; }
.fact span { display: block; margin-top: var(--space-xs); color: var(--muted); }

.check-list { list-style: none; margin: var(--space-xl) 0 0; padding: 0; display: grid; gap: var(--space-md); }
.check-list li { display: grid; grid-template-columns: 1.5rem 1fr; gap: var(--space-sm); color: var(--body); }
.check-list li::before { content: "✓"; color: var(--success); font-weight: 900; }

.faq-list { margin-top: var(--space-xl); border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary {
  min-height: 56px;
  padding-block: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}
summary::after { content: "+"; color: var(--cyan); font-family: "Orbitron", sans-serif; font-size: 1.2rem; }
details[open] summary::after { content: "−"; }
details p { max-width: var(--measure); margin: 0; padding: 0 0 var(--space-lg); color: var(--muted); }

.cta-band { padding-block: clamp(3.5rem, 7vw, 6rem); background: var(--cyan); color: oklch(14% 0.02 220); }
.cta-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-xl); align-items: center; }
.cta-band h2 { max-width: 18ch; }
.cta-band p { max-width: 56ch; margin: var(--space-md) 0 0; }
.cta-band .button { background: oklch(14% 0.02 220); color: var(--text); }

.related-links { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-lg); margin-top: var(--space-xl); }
.related-links a { color: var(--body); font-weight: 600; text-underline-offset: 4px; }

.site-footer { padding-block: var(--space-2xl); border-top: 1px solid var(--line); }
.footer-grid { display: flex; justify-content: space-between; gap: var(--space-xl); align-items: flex-start; color: var(--muted); }
.footer-grid p { margin: 0; }
.footer-grid a { color: var(--muted); }

@media (max-width: 800px) {
  .site-header { backdrop-filter: none; }
  .nav-links a:not(.button) { display: none; }
  .hero-shell, .intro-grid { grid-template-columns: 1fr; }
  .hero-shell { padding-block: 4rem; }
  .hero-figure { max-width: 560px; }
  .fact-strip { grid-template-columns: 1fr; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--line); }
  .principle { grid-template-columns: 3rem minmax(0, 1fr); }
  .cta-grid { grid-template-columns: 1fr; }
  .footer-grid { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}