:root{--navy:#153B68;--blue:#1D6FA5;--accent:#2F80ED;--mint:#8BE0C1;--bg:#F7F9FC;--card:#fff;--text:#172B3A;--muted:#5E7085;--border:#DCE5EE;--shadow:0 12px 40px rgba(21,59,104,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{display:inline-flex;align-items:center;gap:9px;color:var(--navy);font-weight:800;font-size:1.15rem;text-decoration:none}.logo img{width:36px;height:36px}.nav nav{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.nav nav a{color:var(--navy);font-weight:600;font-size:.95rem}.section{padding:64px 0}.article{max-width:860px}.article h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.08;letter-spacing:-.03em;margin:.3rem 0 1rem}.article h2{font-size:1.65rem;margin-top:2.5rem}.article h3{margin-top:1.8rem}.article-lead{font-size:1.2rem;color:var(--muted);max-width:760px}.eyebrow{color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 18px;font-weight:750;cursor:pointer;box-shadow:0 6px 18px rgba(47,128,237,.2)}.button:hover{text-decoration:none;filter:brightness(.96)}.article-card,.tool-card,.disclosure-box,.result-card{background:var(--card);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}.article-card{padding:22px;display:block;color:var(--text)}.article-card:hover{text-decoration:none;transform:translateY(-1px)}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.article-card span{font-size:.72rem;color:var(--blue);font-weight:800;letter-spacing:.08em}.tool-card{padding:24px}.tool-card textarea,.tool-card input[type=text],.tool-card input[type=url],.tool-card input[type=file]{width:100%;padding:13px;border:1px solid #C9D6E2;border-radius:10px;background:#fff;font:inherit}.tool-card textarea{min-height:150px;resize:vertical}.tool-result,.results{margin-top:18px;padding:18px;border-radius:14px;background:#F5F8FC;border:1px solid var(--border)}.footer-bottom{padding:28px 0;color:var(--muted);font-size:.92rem}.report-list{padding-left:1.25rem}.hero-image{border-radius:18px;display:block;margin:24px 0;width:100%;box-shadow:var(--shadow)}.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;display:none;background:#fff;border:1px solid var(--border);box-shadow:0 16px 50px rgba(0,0,0,.16);border-radius:16px;padding:18px}.cookie-banner.show{display:block}.cookie-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.button.secondary{background:#fff;color:var(--navy);border:1px solid var(--border);box-shadow:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:8px;top:-50px;background:var(--navy);color:#fff;padding:10px;border-radius:8px;z-index:100}.skip-link:focus{top:8px}@media(max-width:800px){.nav{align-items:flex-start;padding:14px 0;flex-direction:column}.nav nav{gap:12px}.article-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.section{padding:42px 0}.container{width:min(100% - 22px,1120px)}.article-grid{grid-template-columns:1fr}.article h1{font-size:2.15rem}.cookie-banner{left:10px;right:10px;bottom:10px}}

.score-label{display:block;font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:2px;opacity:.85}

.score-speed{margin-top:10px;text-align:center}.loading p{margin:.5rem 0 0}

/* V13 navigation/footer organization */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-bottom: 1px solid #e4ebf2; }
.nav { display:flex; align-items:center; justify-content:space-between; gap:32px; min-height:72px; }
.nav nav { display:flex; align-items:center; justify-content:flex-end; gap:22px; flex-wrap:wrap; }
.nav nav a { display:inline-flex; align-items:center; white-space:nowrap; text-decoration:none; }
.logo { display:inline-flex; align-items:center; gap:10px; white-space:nowrap; text-decoration:none; font-weight:800; }
.logo img { display:block; flex:0 0 auto; }
footer { margin-top:64px; border-top:1px solid #e4ebf2; background:#f7f9fc; }
.footer-bottom { display:flex; align-items:center; justify-content:center; gap:0; flex-wrap:wrap; padding:24px 16px; text-align:center; }
.footer-bottom a { display:inline-flex; margin:4px 10px; white-space:nowrap; text-decoration:none; }
.footer-bottom a + a::before { content:""; margin-right:20px; color:#a5b3c2; }
@media (max-width:760px){
  .nav { flex-direction:column; align-items:flex-start; padding:14px 0; gap:12px; }
  .nav nav { justify-content:flex-start; gap:8px 16px; width:100%; }
  .nav nav a { padding:3px 0; }
  .footer-bottom { justify-content:flex-start; text-align:left; }
}

/* V14 typography, spacing and result-report system */
:root{
  --report-gap:18px;
  --soft-bg:#f7f9fc;
}
h1,h2,h3,h4,p,ul,ol{overflow-wrap:anywhere}
p{margin-top:0}
.hero-copy{max-width:680px;margin:18px 0 22px}
.micro{color:var(--muted);font-size:.9rem;line-height:1.55}
.tagline{margin:8px 0 0}
.hero-card{padding:28px;border:1px solid var(--border);border-radius:20px;background:var(--card);box-shadow:var(--shadow)}
.hero-card h3{margin:20px 0 18px;font-size:1.25rem}
.signal{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  column-gap:20px;
  padding:13px 0;
  border-top:1px solid var(--border);
  line-height:1.45;
}
.signal:first-of-type{border-top:0}
.signal span{min-width:0;color:var(--text)}
.signal b{white-space:nowrap}
.card-note{margin:20px 0 0;padding-top:16px;border-top:1px solid var(--border);font-size:.86rem;color:var(--muted);line-height:1.55}
.score-ring{display:flex;align-items:baseline;gap:4px;width:max-content}
.score-ring strong{font-size:3rem;line-height:1;font-weight:850;letter-spacing:-.04em}
.score-ring span{font-size:1rem;color:var(--muted)}
.checker-box{padding:28px;border:1px solid var(--border);border-radius:20px;background:var(--card);box-shadow:var(--shadow)}
.checker-box form label{display:block;font-weight:700;margin-bottom:8px}
.input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:stretch}
.input-row input{min-width:0;width:100%;padding:13px 14px;border:1px solid #c9d6e2;border-radius:10px;background:#fff;font:inherit;color:var(--text)}
.input-row input:focus{outline:3px solid rgba(47,128,237,.16);border-color:var(--accent)}
.input-row .button{min-height:48px;white-space:normal}
.score-speed{margin:14px auto 0;max-width:820px}
.results{margin-top:24px;padding:24px;background:var(--soft-bg);border-radius:16px}
.result-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--border)}
.result-url{font-weight:750;overflow-wrap:anywhere}
.result-head small{display:block;color:var(--muted);margin-top:4px}
.result-score{min-width:112px;text-align:center;padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:#fff;font-size:2rem;font-weight:850;line-height:1.05}
.result-score .score-label{font-size:.68rem;line-height:1.2;letter-spacing:.08em;margin-bottom:7px}
.result-score>small{display:inline;font-size:.8rem;color:var(--muted);font-weight:650;margin-left:2px}
.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0}
.result-item{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:7px;
  padding:15px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:12px;
}
.result-item small{
  color:var(--muted);
  font-size:.78rem;
  line-height:1.35;
  text-transform:none;
}
.result-item b{
  display:block;
  font-size:.98rem;
  line-height:1.4;
  overflow-wrap:anywhere;
}
.results>h3{margin:28px 0 12px;font-size:1.05rem}
.results>h3:first-of-type{margin-top:24px}
.results .report-list{margin:0;padding-left:1.2rem}
.results .report-list li{margin:8px 0;padding-left:3px}
.results .disclosure-box{margin:22px 0 0;box-shadow:none}
.pass-text{color:#16734a}
.warning-text{color:#a45a00}
.info{color:#2d648a}
.loading{padding:20px;text-align:center;background:#fff;border:1px solid var(--border);border-radius:12px}
.loading strong{display:block;font-size:1.05rem}
.loading p{color:var(--muted);margin:7px auto 0;max-width:620px}
.hidden{display:none!important}
.section-heading{max-width:800px;margin-bottom:28px}
.section-heading h2{margin:8px 0 10px;line-height:1.18}
.section-heading p{color:var(--muted);max-width:760px}
.toolkit-hero{display:block;width:100%;max-width:860px;margin:0 auto 28px;border-radius:18px;box-shadow:var(--shadow)}
.footer-bottom{gap:8px 0}
.footer-bottom a{padding:2px 10px;margin:0;line-height:1.5}
.footer-bottom a+a{border-left:1px solid #cbd6e0}
@media(max-width:800px){
  .result-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .input-row{grid-template-columns:1fr}
  .input-row .button{width:100%}
  .hero-card{margin-top:8px}
}
@media(max-width:560px){
  .checker-box{padding:20px}
  .results{padding:18px}
  .result-head{grid-template-columns:1fr;gap:16px}
  .result-score{width:100%;text-align:left}
  .result-grid{grid-template-columns:1fr}
  .result-item{padding:14px}
  .footer-bottom{justify-content:flex-start}
  .footer-bottom a{padding:3px 9px}
  .footer-bottom a+a{border-left:0}
}

/* V15: spacing, share actions, fallback result, and email signup */
.static-result,.email-alert-box{margin-top:24px;padding:24px;border:1px solid #dfe7ef;border-radius:18px;background:#fff;box-shadow:0 8px 28px rgba(23,43,77,.06)}
.static-result .result-head,.results .result-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:20px}
.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0 24px}
.result-item{padding:16px 18px;border:1px solid #e5ebf2;border-radius:12px;background:#f9fbfd;display:flex;flex-direction:column;gap:7px;min-width:0}
.result-item small{font-size:.82rem;color:#607080;line-height:1.35}.result-item b{font-size:1rem;line-height:1.35}
.result-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 8px}.result-actions.hidden{display:none}.share-note{margin:0 0 26px}
.email-alert-box h3{margin:0 0 8px}.email-alert-box p{margin:0 0 14px}.email-alert-form{display:flex;gap:12px;align-items:stretch}.email-alert-form input{flex:1;min-width:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:680px){.result-grid{grid-template-columns:1fr}.result-actions{flex-direction:column}.result-actions .button{width:100%;justify-content:center}.email-alert-form{flex-direction:column}.email-alert-form .button{width:100%}.static-result,.email-alert-box{padding:18px}.static-result .result-head,.results .result-head{align-items:flex-start;flex-direction:column}.result-score{align-self:flex-start}}

/* V16 social sharing controls */
.result-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;padding-top:20px;border-top:1px solid #e4ebf2}
.result-actions .button{min-height:44px}
@media (max-width:640px){
  .result-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .result-actions .button{width:100%;justify-content:center;text-align:center}
  .result-actions #shareScore{grid-column:1/-1}
}

/* V20 integrity presentation */
.hero-card .static-result,
.static-result { opacity: .6; }
.demo-score-label {
  margin-bottom: 10px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  color: #66798a;
}
.disclosure-box {
  margin-top: 16px;
  padding: 16px 18px;
  border: 1px solid #d9e2ea;
  border-radius: 12px;
  background: #f7f9fc;
  color: #526677;
  font-size: .9rem;
  line-height: 1.65;
}
.disclosure-box strong { color: #263b4d; }
.disclosure-box a { font-weight: 700; }

/* V21 URL-only heuristic report (frontend fallback) */
.result-score.pattern-score {
  border-color: #f0d9a8;
  background: #fffbf2;
  color: #b26a00;
}
.result-score.pattern-score .score-label {
  color: #8a5200;
  opacity: 1;
}
.result-score.pattern-score > small {
  color: #b26a00;
  opacity: .85;
}
.results .warning-text strong { color: #8a5200; }
@media(max-width:560px){
  .result-score.pattern-score { width: 100%; text-align: left; }
}