/* ClickCease Study — single stylesheet, mobile-first */
:root{
  --c-text:#1a1f2b; --c-muted:#566174; --c-bg:#ffffff; --c-soft:#f5f7fb;
  --c-brand:#1a56db; --c-brand-2:#0e3a99; --c-accent:#e11d48; --c-line:#e3e7ef;
  --c-ok:#0f7d4a; --c-warn:#b35900;
  --maxw:1080px; --r:8px;
  --f:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f);font-size:17px;line-height:1.65;color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--c-brand-2)}
h1,h2,h3,h4{line-height:1.25;color:#0b1220;font-weight:700;margin:1.6em 0 .5em}
h1{font-size:2.05rem;margin-top:.3em}
h2{font-size:1.5rem;border-bottom:1px solid var(--c-line);padding-bottom:.3em;margin-top:2em}
h3{font-size:1.18rem}
p,ul,ol,table{margin:0 0 1em}
ul,ol{padding-left:1.4em}
li{margin:.25em 0}
hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}
code{background:var(--c-soft);padding:2px 6px;border-radius:4px;font-size:.92em}
pre{background:var(--c-soft);padding:14px;border-radius:var(--r);overflow:auto;font-size:.9em}
blockquote{border-left:4px solid var(--c-brand);background:var(--c-soft);margin:1.2em 0;padding:.6em 1em;color:var(--c-muted)}

/* Layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
header.site{border-bottom:1px solid var(--c-line);background:#fff;position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px;flex-wrap:wrap}
.brand{font-weight:800;font-size:1.1rem;color:#0b1220;text-decoration:none;display:flex;gap:8px;align-items:center}
.brand span{color:var(--c-brand)}
.menu{display:flex;gap:18px;flex-wrap:wrap;font-size:.95rem}
.menu a{color:#2b3445;text-decoration:none;font-weight:500}
.menu a:hover{color:var(--c-brand)}

main{padding:28px 0 60px}
article{max-width:760px;margin:0 auto}
article.wide{max-width:var(--maxw)}

footer.site{border-top:1px solid var(--c-line);background:var(--c-soft);padding:32px 0;font-size:.9rem;color:var(--c-muted);margin-top:60px}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px}
footer.site a{color:var(--c-muted);text-decoration:none}
footer.site a:hover{color:var(--c-brand)}
footer.site h4{color:#0b1220;font-size:.95rem;margin:0 0 .6em}
footer.site .legal{border-top:1px solid var(--c-line);padding-top:16px;margin-top:24px;font-size:.82rem}

/* Components */
.lead{font-size:1.13rem;color:#222a3a}
.meta{color:var(--c-muted);font-size:.9rem;margin:.4em 0 1.6em}
.meta .sep{margin:0 8px;color:var(--c-line)}

.disclosure{background:#fff8e6;border:1px solid #f0d180;padding:12px 14px;border-radius:var(--r);font-size:.92rem;margin:0 0 1.6em}
.disclosure strong{color:#7a5200}

.cta{display:inline-block;background:var(--c-brand);color:#fff !important;text-decoration:none;padding:13px 22px;border-radius:var(--r);font-weight:600;border:1px solid var(--c-brand-2)}
.cta:hover{background:var(--c-brand-2)}
.cta.alt{background:#fff;color:var(--c-brand) !important;border:1px solid var(--c-brand)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:1.5em 0}

.card{border:1px solid var(--c-line);border-radius:var(--r);padding:18px 20px;background:#fff;margin:1em 0}
.card.soft{background:var(--c-soft)}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:720px){.grid2,.grid3{grid-template-columns:1fr}}

.kv{display:grid;grid-template-columns:160px 1fr;gap:6px 16px;font-size:.95rem}
.kv dt{color:var(--c-muted)}
.kv dd{margin:0}

.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pros-cons .col{border-radius:var(--r);padding:14px 16px}
.pros{background:#e8f6ee;border:1px solid #b8e0c6}
.cons{background:#fdecec;border:1px solid #f1bcbc}
.pros h3,.cons h3{margin-top:0;font-size:1rem}
.pros ul,.cons ul{margin:0;padding-left:1.1em}
@media (max-width:720px){.pros-cons{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse;font-size:.95rem;display:block;overflow-x:auto}
th,td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--c-soft);font-weight:600}
table tbody tr:nth-child(even){background:#fafbfd}

.breadcrumb{font-size:.85rem;color:var(--c-muted);margin:0 0 1em}
.breadcrumb a{color:var(--c-muted)}

.toc{background:var(--c-soft);border-radius:var(--r);padding:14px 18px;font-size:.93rem;margin:0 0 1.6em}
.toc strong{display:block;margin-bottom:6px;color:#0b1220}
.toc ol{margin:0;padding-left:1.2em}

.related{background:var(--c-soft);padding:18px 20px;border-radius:var(--r);margin:2em 0}
.related h3{margin:0 0 .4em;font-size:1rem}
.related ul{margin:0;padding-left:1.1em;columns:2;column-gap:24px}
@media (max-width:720px){.related ul{columns:1}}

.faq dt{font-weight:600;margin-top:1em}
.faq dd{margin:.3em 0 0;color:#2b3445}

.calc{background:#eef3fd;border:1px solid #c8d8f6;padding:16px;border-radius:var(--r)}
.calc input{width:120px;padding:6px 8px;border:1px solid var(--c-line);border-radius:4px;font-size:1rem}
.calc label{display:block;margin:.5em 0 .2em;font-size:.92rem;color:#2b3445}
.calc .out{font-size:1.4rem;font-weight:700;color:var(--c-accent);margin-top:.6em}

.badge{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:99px;background:var(--c-brand);color:#fff;vertical-align:middle;margin-left:6px}
.badge.warn{background:var(--c-warn)}
.badge.ok{background:var(--c-ok)}