:root {
  --bg: #0b1220;
  --bg-card: #121a2b;
  --text: #e8eef8;
  --muted: #9aacc7;
  --accent: #f4b942;
  --accent-2: #3ecf8e;
  --line: rgba(255,255,255,0.08);
  --max: 1040px;
  --radius: 16px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(62,207,142,0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(244,185,66,0.14), transparent 50%),
    var(--bg);
  line-height: 1.55;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; }
header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(11,18,32,0.8);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.9rem 0;
}
.logo { font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.95rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.4rem; border-radius: 999px; padding: 0.75rem 1.15rem;
  font-weight: 600; border: 1px solid transparent; cursor: pointer;
  text-decoration: none !important;
}
.btn-primary { background: var(--accent); color: #1a1405; }
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent; color: var(--text);
  border-color: var(--line);
}
.hero { padding: 4rem 0 2.5rem; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 1rem;
}
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 40rem; }
.badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.25rem 0 1.75rem; }
.badge {
  font-size: 0.8rem; color: var(--muted);
  border: 1px solid var(--line); background: rgba(255,255,255,0.03);
  border-radius: 999px; padding: 0.35rem 0.7rem;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
section { padding: 2.75rem 0; }
section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em; margin: 0 0 0.75rem;
}
.muted { color: var(--muted); }
.grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 1.25rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.card h3 { margin: 0 0 0.4rem; font-size: 1.15rem; }
.card .watts { color: var(--accent); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 1.25rem 0 0; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 1rem 1rem 1rem 3.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  margin-bottom: 0.75rem;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 1rem; top: 1rem;
  width: 1.6rem; height: 1.6rem; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(62,207,142,0.15); color: var(--accent-2);
  font-weight: 700; font-size: 0.85rem;
}
.note {
  border-left: 3px solid var(--accent);
  background: rgba(244,185,66,0.08);
  padding: 0.9rem 1rem; border-radius: 0 12px 12px 0;
  color: var(--muted); margin-top: 1rem;
}
footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem; color: var(--muted); font-size: 0.9rem;
}
footer .cols {
  display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between;
}
.legal { max-width: 42rem; padding: 3rem 0 4rem; }
.legal h1 { margin-top: 0; }
@media (max-width: 640px) {
  .nav-links .hide-sm { display: none; }
}

figure.diagram {
  margin: 1.75rem 0 1.5rem;
  padding: 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
figure.diagram svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
}
figure.diagram figcaption {
  margin-top: 0.75rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}