:root{
  --blue:#4383f2; --blue-d:#2f6bd6; --navy:#0f1b33; --ink:#1f2c46;
  --muted:#5c6b85; --line:#e6ebf3; --bg:#f6f9fe; --card:#ffffff;
  --green:#16a34a; --amber:#f59e0b; --red:#ef4444;
  --shadow:0 12px 40px rgba(19,44,90,.10); --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--blue);color:#fff;font-weight:600;font-size:16px;padding:14px 26px;border-radius:12px;border:none;cursor:pointer;transition:.18s;box-shadow:0 8px 22px rgba(67,131,242,.28)}
.btn:hover{background:var(--blue-d);transform:translateY(-1px)}
.btn.big{font-size:17px;padding:16px 32px}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--blue);color:var(--blue);background:#fff}

/* header */
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:19px;letter-spacing:-.02em}
.brand .dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--blue),#7aa8ff);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:800}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--ink);font-weight:500;font-size:15px}
.nav-links a:hover{color:var(--blue)}
@media(max-width:720px){.nav-links a.hide-m{display:none}}

/* hero */
.hero{padding:56px 0 30px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:32px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eaf1fe;color:var(--blue-d);font-weight:600;font-size:13px;padding:7px 14px;border-radius:999px;margin-bottom:18px}
h1{font-size:46px;line-height:1.08;letter-spacing:-.03em;color:var(--navy);font-weight:800}
@media(max-width:900px){h1{font-size:36px}}
.hero p.lead{font-size:19px;color:var(--muted);margin:18px 0 0;max-width:520px}
.hero-img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:100%;max-height:420px;object-fit:cover}

/* tool card */
.tool{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:30px;margin:10px 0 0}
.tool h2{font-size:22px;color:var(--navy);letter-spacing:-.02em;margin-bottom:4px}
.tool .sub{color:var(--muted);font-size:14.5px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:13.5px;color:var(--ink);margin-bottom:7px}
.field input[type=text]{width:100%;font-size:16px;font-family:inherit;padding:14px 16px;border:1.6px solid var(--line);border-radius:12px;background:#fbfcfe;transition:.16s}
.field input[type=text]:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(67,131,242,.12)}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;margin:6px 0 22px}
@media(max-width:560px){.checks{grid-template-columns:1fr}}
.check{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink);cursor:pointer;user-select:none}
.check input{margin-top:3px;width:17px;height:17px;accent-color:var(--blue);cursor:pointer;flex:none}
.err{color:var(--red);font-size:13px;margin-top:6px;display:none}

/* results */
#result{display:none;margin-top:26px;border-top:1px solid var(--line);padding-top:26px}
.res-top{display:grid;grid-template-columns:180px 1fr;gap:28px;align-items:center}
@media(max-width:560px){.res-top{grid-template-columns:1fr;text-align:center;justify-items:center}}
.gauge{position:relative;width:180px;height:180px}
.gauge svg{transform:rotate(-90deg)}
.gauge .num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge .num b{font-size:46px;font-weight:800;color:var(--navy);line-height:1}
.gauge .num span{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.verdict h3{font-size:26px;color:var(--navy);letter-spacing:-.02em;margin-bottom:6px}
.verdict p{color:var(--muted);font-size:15.5px}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.badge{font-size:13px;font-weight:600;padding:7px 13px;border-radius:999px;background:#eef2f8;color:var(--ink)}
.badge.low{background:#e7f7ee;color:#0f7a3d}.badge.med{background:#fdf3e2;color:#a6660a}.badge.high{background:#fdeaea;color:#c0392b}
.findings{margin-top:24px;display:grid;gap:9px}
.find{display:flex;align-items:flex-start;gap:11px;background:#fafcff;border:1px solid var(--line);border-radius:12px;padding:12px 15px;font-size:14.5px}
.find .ic{width:22px;height:22px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff;margin-top:1px}
.find.ok .ic{background:var(--green)}.find.warn .ic{background:var(--amber)}.find.bad .ic{background:var(--red)}
.find b{color:var(--navy)}
.cta-box{margin-top:26px;background:linear-gradient(135deg,#eef4ff,#f7faff);border:1px solid #dbe7ff;border-radius:16px;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.cta-box p{font-size:15.5px;color:var(--ink);max-width:520px}
.cta-box b{color:var(--navy)}

/* sections */
section.block{padding:64px 0}
.center{text-align:center;max-width:680px;margin:0 auto 44px}
.center h2{font-size:33px;color:var(--navy);letter-spacing:-.025em}
.center p{color:var(--muted);font-size:17px;margin-top:12px}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:860px){.cols{grid-template-columns:1fr}}
.c-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 6px 20px rgba(19,44,90,.05)}
.c-card .n{width:40px;height:40px;border-radius:11px;background:#eaf1fe;color:var(--blue-d);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:15px}
.c-card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.c-card p{color:var(--muted);font-size:15px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:28px}}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);max-height:360px;width:100%;object-fit:cover}
.split h2{font-size:30px;color:var(--navy);letter-spacing:-.02em;margin-bottom:14px}
.split p{color:var(--muted);font-size:16px;margin-bottom:12px}
.split ul{list-style:none;margin-top:16px;display:grid;gap:10px}
.split li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink)}
.split li::before{content:"";width:20px;height:20px;flex:none;margin-top:2px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/13px no-repeat}

/* faq */
.faq{max-width:800px;margin:0 auto}
.q{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.q summary{cursor:pointer;padding:18px 22px;font-weight:600;color:var(--navy);font-size:16.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.q summary::-webkit-details-marker{display:none}
.q summary::after{content:"+";font-size:22px;color:var(--blue);font-weight:400}
.q[open] summary::after{content:"\2013"}
.q .a{padding:0 22px 20px;color:var(--muted);font-size:15.5px}

/* final cta */
.final{background:linear-gradient(135deg,var(--navy),#1b3568);color:#fff;border-radius:26px;padding:56px 40px;text-align:center;margin:20px 0}
.final h2{font-size:34px;letter-spacing:-.02em;margin-bottom:14px}
.final p{color:#c3d2ee;font-size:18px;max-width:560px;margin:0 auto 26px}
.final .btn{background:#fff;color:var(--blue-d)}
.final .btn:hover{background:#eef4ff}
.final .fine{margin-top:16px;font-size:13.5px;color:#93a7cc}

/* footer */
footer{border-top:1px solid var(--line);padding:40px 0 50px;margin-top:20px;color:var(--muted);font-size:14px}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot a{color:var(--muted)}.foot a:hover{color:var(--blue)}
.disc{margin-top:18px;font-size:13px;color:#8595ac;max-width:640px}

/* article + hub pages (shared) */
.crumbs{font-size:13px;color:var(--muted);padding:22px 0 0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--blue)}
.crumbs .sep{margin:0 7px;color:#b9c3d4}
.phead{padding:26px 0 8px}
.phead h1{font-size:40px;color:var(--navy);letter-spacing:-.03em;line-height:1.1}
.phead p{color:var(--muted);font-size:18px;margin-top:14px;max-width:660px}
@media(max-width:640px){.phead h1{font-size:30px}}
.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:26px;color:var(--navy);letter-spacing:-.02em;margin:38px 0 12px}
.prose h3{font-size:19px;color:var(--navy);margin:24px 0 8px}
.prose p{color:var(--ink);font-size:16.5px;margin-bottom:14px}
.prose a{font-weight:500}
.prose ul,.prose ol{margin:12px 0 18px 2px;display:grid;gap:9px;list-style:none}
.prose li{display:flex;gap:10px;align-items:flex-start;font-size:16px;color:var(--ink)}
.prose li::before{content:"";width:19px;height:19px;flex:none;margin-top:3px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat}
.tbl{width:100%;border-collapse:collapse;margin:16px 0 22px;font-size:15px}
.tbl th,.tbl td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line)}
.tbl th{background:#f4f7fc;color:var(--navy);font-weight:600}
.note{background:#f4f7fc;border-left:3px solid var(--blue);border-radius:0 10px 10px 0;padding:16px 18px;color:var(--muted);font-size:15px;margin:20px 0}
.tool-cta{display:inline-flex;align-items:center;gap:8px;background:#eaf1fe;color:var(--blue-d);font-weight:600;font-size:15px;padding:11px 18px;border-radius:12px;margin:6px 0 4px}
.tool-cta:hover{background:#dce8fe}

/* related cocon block */
.related{max-width:760px;margin:44px auto 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px}
.related h2{font-size:20px;color:var(--navy);margin-bottom:6px;letter-spacing:-.01em}
.related .rl{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.rel-grid{display:grid;gap:10px}
.rel-grid a{display:flex;gap:11px;align-items:center;padding:12px 15px;border:1px solid var(--line);border-radius:12px;color:var(--navy);font-weight:500;font-size:15px;background:#fafcff;transition:.15s}
.rel-grid a:hover{border-color:var(--blue);background:#fff}
.rel-grid a::before{content:"\2192";color:var(--blue);font-weight:700}

/* hub children grid */
.hub-intro{max-width:760px;margin:0 auto}
.hub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:920px;margin:10px auto 0}
@media(max-width:720px){.hub-grid{grid-template-columns:1fr}}
.hub-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:0 6px 20px rgba(19,44,90,.05);transition:.16s}
.hub-card:hover{border-color:var(--blue);transform:translateY(-2px)}
.hub-card h3{font-size:17px;color:var(--navy);margin-bottom:6px}
.hub-card p{color:var(--muted);font-size:14.5px}

/* explore silos block (home) */
.silo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;max-width:920px;margin:0 auto}
@media(max-width:720px){.silo-grid{grid-template-columns:1fr}}