/* Kevin Huang — SEO content & technical audits */
:root{
  --ink:#111827;
  --body:#374151;
  --muted:#6b7280;
  --line:#e5e7eb;
  --accent:#0f62fe;
  --accent-d:#0b4fd1;
  --bg:#ffffff;
  --soft:#f9fafb;
  --ok:#059669;
  --warn:#b45309;
  --bad:#dc2626;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* header */
header{border-bottom:1px solid var(--line);padding:16px 0;position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);z-index:20}
nav{display:flex;justify-content:space-between;align-items:center;gap:16px}
.logo{font-weight:700;font-size:15px;letter-spacing:-.2px}
.logo span{color:var(--accent)}
.navlinks a{color:var(--muted);font-size:13.5px;margin-left:22px;text-decoration:none}
.navlinks a:hover{color:var(--accent)}

/* hero */
.hero{padding:72px 0 56px}
.eyebrow{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700}
.hero h1{font-size:42px;line-height:1.16;letter-spacing:-1.2px;margin:14px 0 18px;max-width:760px;font-weight:750}
.hero .sub{font-size:17px;color:var(--muted);max-width:640px}
.cta{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}

/* buttons */
.btn{display:inline-block;padding:11px 22px;border-radius:7px;font-size:14px;font-weight:600;text-decoration:none;transition:.15s ease;border:1px solid transparent}
.btn:hover{text-decoration:none}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:var(--accent-d)}
.btn-s{border-color:var(--line);color:var(--ink)}
.btn-s:hover{border-color:var(--accent);color:var(--accent)}

/* sections */
section{padding:56px 0;border-top:1px solid var(--line)}
h2{font-size:26px;letter-spacing:-.6px;margin-bottom:8px;font-weight:700}
.lead{color:var(--muted);font-size:15px;margin-bottom:32px;max-width:660px}

/* grid cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{border:1px solid var(--line);border-radius:10px;padding:24px;background:#fff;transition:.15s}
.card:hover{border-color:#d1d5db;box-shadow:0 2px 12px rgba(17,24,39,.05)}
.card h3{font-size:16.5px;margin-bottom:8px;font-weight:650}
.card p{font-size:14px;color:var(--muted)}
.card ul{margin:12px 0 0 18px;font-size:13.5px;color:var(--body)}
.card ul li{margin-bottom:5px}
.card .price{margin-top:16px;font-size:13px;font-weight:700;color:var(--accent)}

/* proof numbers */
.proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.proof div{background:#fff;padding:22px;text-align:center}
.proof .n{font-size:26px;font-weight:700;letter-spacing:-1px;color:var(--accent)}
.proof .l{font-size:12.5px;color:var(--muted);margin-top:2px}

/* case studies */
.case{border-left:3px solid var(--accent);padding:4px 0 4px 20px;margin-bottom:28px}
.case h3{font-size:16px;margin-bottom:6px;font-weight:650}
.case .meta{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.case p{font-size:14px;color:var(--body)}
.case ul{margin:8px 0 0 18px;font-size:14px;color:var(--body)}
.case ul li{margin-bottom:4px}
.case .res{font-size:13.5px;margin-top:10px;font-weight:600;color:var(--ok)}
.case .btn{margin-top:14px;font-size:13px;padding:8px 16px}

/* prose */
.prose{font-size:15px;color:var(--body);max-width:700px;margin-bottom:16px}

/* faq */
.faq{max-width:760px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-size:15px;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-size:18px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:10px;font-size:14px;color:var(--muted);max-width:680px}

/* contact */
.contact{font-size:15px;line-height:2}

/* footer */
footer{border-top:1px solid var(--line);padding:32px 0;font-size:13px;color:var(--muted)}

/* ===== audit report page ===== */
.report-head{padding:48px 0 24px}
.report-head h1{font-size:32px;letter-spacing:-.8px;margin-bottom:10px}
.report-head .meta{font-size:13.5px;color:var(--muted)}
.kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin:28px 0 8px}
.kpi .card{padding:20px}
.kpi .k{font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.kpi .v{font-size:28px;font-weight:750;letter-spacing:-1px;margin-top:4px;color:var(--ink)}
.kpi .v small{font-size:14px;color:var(--muted);font-weight:500}
.kpi .d{font-size:12px;color:var(--muted);margin-top:4px}

table{width:100%;border-collapse:collapse;font-size:13.5px;margin:16px 0}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12.5px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em;background:var(--soft)}
td code{background:var(--soft);padding:1px 5px;border-radius:4px;font-size:12.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}

.tag{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;letter-spacing:.02em}
.tag-c{background:#fee2e2;color:#b91c1c}
.tag-h{background:#ffedd5;color:#c2410c}
.tag-m{background:#fef3c7;color:var(--warn)}
.tag-l{background:#e0e7ff;color:#3730a3}
.tag-ok{background:#d1fae5;color:#065f46}

.issue{border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:16px}
.issue h3{font-size:15.5px;margin-bottom:8px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.issue .ev{background:var(--soft);border-left:3px solid var(--line);padding:10px 14px;border-radius:0 6px 6px 0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:var(--body);margin:10px 0;overflow-x:auto;white-space:pre-wrap;word-break:break-word}
.issue .fix{font-size:13.5px;color:var(--body);margin-top:10px}
.issue .fix strong{color:var(--ink)}

.note{background:var(--soft);border:1px solid var(--line);border-radius:8px;padding:14px 18px;font-size:13px;color:var(--muted);margin-top:20px}

@media(max-width:640px){
  .hero h1{font-size:30px}
  .hero{padding:44px 0 32px}
  .navlinks{display:none}
  section{padding:40px 0}
  .report-head h1{font-size:24px}
  .wrap{padding:0 18px}
}