:root{
  --navy:#10243f; --navy2:#173a59; --teal:#168b7c; --teal2:#0f6f65;
  --gold:#f2c464; --cream:#fffaf0; --ink:#14202b; --muted:#5d6b78;
  --line:#dbe5ea; --soft:#f3f8f8; --white:#fff; --danger:#9c3c3c;
  --shadow:0 16px 40px rgba(16,36,63,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:auto}
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px}
.brand{font-weight:900;color:var(--navy);text-decoration:none;font-size:1.06rem}
.nav-links{display:flex;gap:18px;align-items:center;font-size:.95rem}
.nav-links a{text-decoration:none;color:var(--navy)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:12px;padding:13px 18px;text-decoration:none;font-weight:800;border:1px solid transparent;cursor:pointer}
.button-primary{background:var(--teal);color:#fff;box-shadow:0 10px 22px rgba(22,139,124,.22)}
.button-primary:hover{background:var(--teal2)}
.button-secondary{border-color:var(--line);background:#fff;color:var(--navy)}
.button-gold{background:var(--gold);color:var(--navy)}
.hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:72px 0 58px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.kicker{display:inline-block;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.07);padding:7px 11px;border-radius:999px;font-size:.88rem;font-weight:800}
h1{font-size:clamp(2.35rem,5vw,4.5rem);line-height:1.02;margin:16px 0 18px;letter-spacing:-.035em}
.hero p{font-size:1.16rem;color:#e6f0f5;max-width:650px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 18px}
.micro{font-size:.89rem;color:#cbdbe3}
.hero-card{background:#fff;border-radius:22px;padding:12px;box-shadow:0 24px 60px rgba(0,0,0,.28);transform:rotate(1deg)}
.hero-card img{border-radius:14px}
.section{padding:72px 0}
.section-soft{background:var(--soft)}
.section h2{font-size:clamp(1.8rem,3.2vw,2.8rem);line-height:1.15;color:var(--navy);margin:0 0 12px}
.lead{font-size:1.08rem;color:var(--muted);max-width:760px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.card{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff;box-shadow:0 8px 24px rgba(16,36,63,.04)}
.card h3{margin-top:0;color:var(--navy)}
.badge{display:inline-flex;padding:5px 9px;background:#e3f5f1;color:var(--teal2);border-radius:999px;font-size:.78rem;font-weight:900}
.calc-box{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.checks{list-style:none;padding:0;margin:22px 0}
.checks li{margin:10px 0;padding-left:28px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
.comparison{overflow:hidden;border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}
.comparison img{width:100%}
.cta{background:linear-gradient(120deg,#0e6d63,#168b7c);color:#fff;border-radius:24px;padding:36px;margin-top:30px}
.cta h2{color:#fff}
.article{width:min(820px,calc(100% - 32px));margin:0 auto;padding:56px 0}
.article h1{color:var(--navy);font-size:clamp(2.15rem,5vw,3.6rem)}
.article h2{color:var(--navy);margin-top:38px}
.article h3{color:var(--navy);margin-top:28px}
.article p,.article li{font-size:1.05rem}
.article .toc{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:20px}
.article .callout{background:#fff7dc;border-left:5px solid var(--gold);padding:18px 20px;border-radius:10px;margin:28px 0}
.download-panel{background:var(--soft);border:1px solid var(--line);border-radius:22px;padding:28px;margin:28px 0}
.footer{background:#0d2037;color:#d7e3eb;padding:42px 0}
.footer a{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:30px}
.small{font-size:.86rem;color:#6c7883}
.footer .small{color:#aebfca}
@media(max-width:820px){
  .hero{padding-top:48px}
  .hero-grid,.calc-box,.grid-3,.footer-grid{grid-template-columns:1fr}
  .nav-links a:not(.button){display:none}
  .hero-card{transform:none}
}