@font-face { font-family: Poppins; font-weight: 400; src: url(/fonts/Poppins_400Regular.ttf) format('truetype'); font-display: swap; }
@font-face { font-family: Poppins; font-weight: 500; src: url(/fonts/Poppins_500Medium.ttf) format('truetype'); font-display: swap; }
@font-face { font-family: Poppins; font-weight: 600; src: url(/fonts/Poppins_600SemiBold.ttf) format('truetype'); font-display: swap; }

:root {
  --petrol: #23454D; --petrol-dark: #18333A; --petrol-soft: #E7EEF0; --petrol-line: #C9D7DB;
  --bg: #F4F6F7; --card: #FFFFFF; --text: #13252A; --muted: #5E7175; --line: #E1E7E9;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: Poppins, -apple-system, system-ui, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; font-size: 16px; }
a { color: var(--petrol); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

header.top { background: var(--petrol); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
header.top img { height: 26px; display: block; }
header.top nav { display: flex; gap: 20px; }
header.top nav a { color: #fff; text-decoration: none; font-size: 14px; font-weight: 500; opacity: .85; }
header.top nav a:hover, header.top nav a[aria-current] { opacity: 1; text-decoration: underline; }

.hero { background: var(--petrol); color: #fff; padding: 40px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.15; margin: 0 0 12px; font-weight: 600; }
.hero p.lead { font-size: 17px; color: #CFE0E3; margin: 0 0 24px; max-width: 520px; }
.hero .visual { position: relative; }
.hero .visual::before { content: ''; position: absolute; inset: 4% 4% 10%; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,.22), rgba(255,255,255,0) 68%); }
.hero img { position: relative; width: 100%; height: auto; display: block; filter: drop-shadow(0 24px 30px rgba(0,0,0,.35)); }
.btns { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 10px; font-weight: 500; font-size: 15px; text-decoration: none; }
.btn.primary { background: #fff; color: var(--petrol); }
.btn.ghost { border: 1px solid rgba(255,255,255,.35); color: #fff; }
.btn.ghost small { opacity: .75; font-weight: 400; }
.btn.dark { background: var(--petrol); color: #fff; }

section { padding: 56px 0; }
section h2 { font-size: 26px; margin: 0 0 8px; font-weight: 600; }
section p.sub { color: var(--muted); margin: 0 0 28px; max-width: 640px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { font-size: 16px; margin: 10px 0 4px; font-weight: 600; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.icon { width: 40px; height: 40px; border-radius: 20px; background: var(--petrol-soft); display: flex; align-items: center; justify-content: center; }
.icon svg { width: 20px; height: 20px; stroke: var(--petrol); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.note { color: var(--muted); font-size: 14px; }

.doc { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 28px; margin: 32px 0; }
.doc h1 { font-size: 28px; margin: 0 0 4px; font-weight: 600; }
.doc h2 { font-size: 18px; margin: 28px 0 6px; font-weight: 600; }
.doc p, .doc li { color: #2A3D42; }
.doc .meta { color: var(--muted); font-size: 14px; margin: 0 0 8px; }
details { border-top: 1px solid var(--line); padding: 14px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 500; }
details p { margin: 8px 0 0; }

footer { border-top: 1px solid var(--line); background: var(--card); padding: 28px 0; font-size: 13px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer a { color: var(--muted); }

@media (max-width: 800px) {
  .hero .wrap, .split { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .hero img { max-width: 320px; margin: 0 auto; }
  header.top nav { gap: 14px; }
}