:root {
  color-scheme: dark;
  --bg: #07101d;
  --bg-soft: #0d1a2a;
  --panel: #10233a;
  --panel-soft: #132a45;
  --line: rgba(171, 201, 232, .16);
  --text: #f3f7fc;
  --muted: #a9bbcf;
  --accent: #4c9df0;
  --accent-strong: #78b9ff;
  --mint: #5de0b2;
  --max: 1160px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 82% 8%, #15365f 0, transparent 33rem), var(--bg); color: var(--text); }
a { color: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid var(--line); background: rgba(7, 16, 29, .9); backdrop-filter: blur(14px); }
.site-header .container { display: flex; align-items: center; min-height: 68px; gap: 28px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 19px; font-weight: 800; }
.logo img { width: 32px; height: 32px; }
.site-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.site-nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
.site-nav a:hover { color: var(--text); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 24px; color: var(--muted); font-size: 13px; }
.breadcrumbs a { color: var(--accent-strong); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs > * + *::before { margin-right: 7px; color: #60758e; content: "/"; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 19px; border: 1px solid rgba(255,255,255,.12); border-radius: 11px; background: #3189e5; color: #fff; font-weight: 750; text-decoration: none; box-shadow: 0 10px 28px rgba(49, 137, 229, .25); }
.button:hover { background: #46a0fa; }
.button.secondary { background: rgba(255,255,255,.05); box-shadow: none; }
.button.secondary:hover { background: rgba(255,255,255,.1); }

.hero { padding: 76px 0 58px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); align-items: center; gap: 48px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--mint); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { width: 8px; height: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 16px currentColor; content: ""; }
h1 { max-width: 760px; margin: 18px 0; font-size: clamp(39px, 5vw, 67px); line-height: 1.04; letter-spacing: -.04em; }
h1 em { color: var(--accent-strong); font-style: normal; }
.lead { max-width: 690px; margin: 0; color: #c7d5e5; font-size: clamp(18px, 2vw, 22px); line-height: 1.58; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 28px; }
.hero-note { margin-top: 17px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.hero-visual { position: relative; padding: 10px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.035); box-shadow: 0 28px 90px rgba(0,0,0,.34); transform: rotate(-.7deg); }
.hero-visual img { width: 100%; border-radius: 13px; }
.hero-visual.drawing-visual { overflow: hidden; padding: 14px; background: #e9edf2; }
.hero-visual.drawing-visual img { aspect-ratio: 16 / 10; object-fit: contain; border-radius: 8px; background: #fff; }

.drawing-example { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #e9edf2; box-shadow: 0 20px 55px rgba(0,0,0,.22); }
.drawing-example img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: #fff; }
.drawing-example figcaption { padding: 14px 18px; border-top: 1px solid rgba(7,16,29,.13); background: var(--bg-soft); color: var(--muted); font-size: 13px; line-height: 1.55; }
.mode-hint { display: block; margin-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.5; }

.trust-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; overflow: hidden; margin-top: 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--line); }
.trust-row div { padding: 18px; background: var(--bg-soft); }
.trust-row b { display: block; margin-bottom: 4px; color: var(--accent-strong); font-size: 17px; }
.trust-row span { color: var(--muted); font-size: 13px; line-height: 1.4; }

.section { padding: 68px 0; }
.section.alt { border-block: 1px solid var(--line); background: rgba(10, 25, 42, .72); }
.section-head { max-width: 760px; margin-bottom: 30px; }
.section h2 { margin: 0 0 13px; font-size: clamp(29px, 3.3vw, 44px); line-height: 1.12; letter-spacing: -.025em; }
.section-head p, .prose p { color: var(--muted); font-size: 17px; line-height: 1.7; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.card { padding: 23px; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(145deg, rgba(22, 48, 78, .8), rgba(10, 25, 42, .9)); }
.card .number { display: grid; width: 34px; height: 34px; place-items: center; margin-bottom: 28px; border-radius: 9px; background: rgba(76, 157, 240, .15); color: var(--accent-strong); font-weight: 800; }
.card h3 { margin: 0 0 9px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); line-height: 1.62; }

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 38px; align-items: start; }
.check-list { display: grid; gap: 13px; margin: 23px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: #d9e4ef; line-height: 1.55; }
.check-list li::before { position: absolute; top: .15em; left: 0; display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; background: rgba(93,224,178,.13); color: var(--mint); font-size: 12px; font-weight: 900; content: "✓"; }
.notice { padding: 22px; border: 1px solid rgba(120,185,255,.24); border-radius: 14px; background: rgba(76,157,240,.08); color: #d6e7f8; line-height: 1.65; }
.notice strong { color: #fff; }
.notice a, .prose a, .card a { color: var(--accent-strong); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; min-width: 680px; border-collapse: collapse; background: rgba(10,25,42,.76); }
th, td { padding: 15px 17px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.5; }
th { color: #fff; background: rgba(255,255,255,.04); }
td { color: var(--muted); }
tr:last-child td { border-bottom: 0; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 21px 21px 21px 68px; border-left: 2px solid var(--accent); background: rgba(255,255,255,.025); counter-increment: step; }
.step::before { position: absolute; top: 20px; left: 18px; color: var(--accent-strong); font-size: 24px; font-weight: 850; content: counter(step, decimal-leading-zero); }
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); line-height: 1.55; }

.faq { display: grid; gap: 10px; }
.faq details { padding: 19px 21px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.025); }
.faq summary { cursor: pointer; font-weight: 750; }
.faq p { margin: 12px 0 0; color: var(--muted); line-height: 1.65; }
.cta { padding: 45px; border: 1px solid rgba(120,185,255,.22); border-radius: 22px; background: radial-gradient(circle at 90% 10%, rgba(76,157,240,.24), transparent 45%), var(--panel); text-align: center; }
.cta h2 { margin-bottom: 10px; }
.cta p { max-width: 660px; margin: 0 auto 24px; color: var(--muted); line-height: 1.6; }

.site-footer { padding: 34px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 18px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: #fff; }
.legal { max-width: 720px; margin-top: 20px; color: #768ba3; line-height: 1.55; }

@media (max-width: 920px) {
  .site-nav { display: none; }
  .hero { padding-top: 50px; }
  .hero-grid, .split { grid-template-columns: 1fr; }
  .hero-visual { max-width: 720px; }
  .cards, .steps { grid-template-columns: 1fr 1fr; }
  .trust-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--max)); }
  .site-header .container { gap: 12px; min-height: 60px; }
  .logo { font-size: 17px; }
  .site-header .button { min-height: 38px; margin-left: auto; padding-inline: 12px; font-size: 13px; }
  .hero { padding: 38px 0 40px; }
  .hero-grid { gap: 31px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .cards, .steps, .trust-row { grid-template-columns: 1fr; }
  .section { padding: 48px 0; }
  .cta { padding: 30px 20px; }
  .footer-grid { flex-direction: column; }
  .footer-links { justify-content: flex-start; }
}