/* SpamTest design system — light default, dark via prefers-color-scheme or data-theme */
:root{
  --bg:#f6f8fb;--bg2:#ffffff;--card:#ffffff;--line:#e3e8f0;--text:#0f1729;--muted:#5b6784;--accent:#2563eb;--accent-2:#1d4ed8;--accent-soft:#e8efff;
  --ok:#16a34a;--ok-soft:#e7f7ec;--warn:#d97706;--warn-soft:#fff4e0;--bad:#dc2626;--bad-soft:#fde8e8;--code:#0b1020;--code-text:#dbe4ff;
  --r:14px;--r-sm:9px;--shadow:0 1px 2px rgba(15,23,41,.06),0 8px 24px -12px rgba(15,23,41,.18);--max:1040px
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#0b1020;--bg2:#0f1629;--card:#131b30;--line:#22304d;--text:#e7ecf7;--muted:#93a0bd;--accent:#5b8cff;--accent-2:#7ea3ff;--accent-soft:#182648;
  --ok:#34d399;--ok-soft:#0f2a22;--warn:#fbbf24;--warn-soft:#2b220c;--bad:#f87171;--bad-soft:#331515;--code:#070b16;--code-text:#c9d6ff;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.6)}}
:root[data-theme=dark]{
  --bg:#0b1020;--bg2:#0f1629;--card:#131b30;--line:#22304d;--text:#e7ecf7;--muted:#93a0bd;--accent:#5b8cff;--accent-2:#7ea3ff;--accent-soft:#182648;
  --ok:#34d399;--ok-soft:#0f2a22;--warn:#fbbf24;--warn-soft:#2b220c;--bad:#f87171;--bad-soft:#331515;--code:#070b16;--code-text:#c9d6ff;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -14px rgba(0,0,0,.6)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:15.5px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}h1{font-size:clamp(30px,4.5vw,44px);font-weight:800}h2{font-size:clamp(22px,3vw,30px);font-weight:750}
h3{font-size:18px;font-weight:700}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
p{margin:0 0 1em}.muted{color:var(--muted)}.small{font-size:13px}.lead{font-size:19px;color:var(--muted);max-width:640px}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
/* header */
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:var(--text)}.brand:hover{text-decoration:none}.brand svg{width:26px;height:26px}
.brand span{color:var(--accent)}.brand small{color:var(--muted);font-weight:500;font-size:14px}
nav.main{display:flex;align-items:center;gap:4px}nav.main a{color:var(--muted);padding:7px 11px;border-radius:8px;font-weight:500;font-size:14.5px;white-space:nowrap}
nav.main a:hover{color:var(--text);background:var(--accent-soft);text-decoration:none}nav.main a.cta{background:var(--accent);color:#fff;font-weight:600}nav.main a.cta:hover{background:var(--accent-2)}
.iconbtn{background:none;border:1px solid var(--line);color:var(--muted);border-radius:8px;width:34px;height:34px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.iconbtn:hover{color:var(--text)}
.menu-toggle{display:none}
@media (max-width:760px){nav.main{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--bg2);border-bottom:1px solid var(--line);padding:10px 16px}
  nav.main.open{display:flex}.menu-toggle{display:inline-flex}}
main{min-height:60vh}
section{padding:56px 0}section.tight{padding:28px 0}
footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:13.5px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--text);margin-bottom:10px}
footer a{color:var(--muted);display:block;margin-bottom:6px}footer .legal{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
@media (max-width:760px){footer .cols{grid-template-columns:1fr 1fr}}
/* buttons & forms */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);color:var(--text);padding:9px 16px;border-radius:10px;cursor:pointer;font:inherit;font-weight:600;font-size:14.5px;box-shadow:0 1px 1px rgba(0,0,0,.03);transition:.15s}
.btn:hover{border-color:var(--accent);text-decoration:none}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-2);border-color:var(--accent-2)}
.btn.big{font-size:17px;padding:14px 26px;border-radius:12px}.btn.small{padding:4px 10px;font-size:12.5px;border-radius:7px}.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.ghost{background:transparent}
input[type=text],input[type=email],input[type=number],input[type=password],select{font:inherit;padding:10px 13px;border-radius:10px;border:1px solid var(--line);background:var(--bg2);color:var(--text);min-width:0}
input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
form.inline{display:flex;gap:10px;max-width:560px;flex-wrap:wrap}form.inline input{flex:1;min-width:200px}
/* hero */
.hero{padding:72px 0 40px;text-align:center}.hero .lead{margin:14px auto 28px}.hero .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero .trust{margin-top:26px;color:var(--muted);font-size:13px;display:flex;gap:8px 18px;justify-content:center;flex-wrap:wrap}
.hero.compact{text-align:left;padding:32px 0 20px}.hero.compact .lead{margin:8px 0 18px}
.pageh{padding:36px 0 8px}
/* cards & grids */
.grid{display:grid;gap:18px}.grid.c3{grid-template-columns:repeat(3,1fr)}.grid.c2{grid-template-columns:repeat(2,1fr)}.grid.c4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}}@media (max-width:600px){.grid.c3,.grid.c2,.grid.c4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);color:var(--text)}
a.card:hover{text-decoration:none;border-color:var(--accent)}.card h3{margin-bottom:6px}.card p{margin:0;color:var(--muted);font-size:14.5px}
.card .ico{width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px}.steps li{position:relative;padding-left:44px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
.steps.big li{padding-left:0;text-align:center}.steps.big li::before{position:static;margin:0 auto 12px;width:40px;height:40px;font-size:17px}
.addr{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:8px}.addr code{font-size:17px;background:var(--code);color:var(--code-text);padding:10px 14px;border-radius:10px;user-select:all;word-break:break-all}
.status{padding:14px 16px;border-radius:var(--r-sm);background:var(--card);border:1px solid var(--line);display:flex;gap:10px;align-items:center}
.status.error{border-color:var(--bad);background:var(--bad-soft)}.status.ok-line{border-color:var(--ok);background:var(--ok-soft)}
.spinner{width:16px;height:16px;border:2px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite;display:inline-block;flex:none}@keyframes spin{to{transform:rotate(360deg)}}
/* score */
.scorebox{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin:16px 0;box-shadow:var(--shadow)}
.scorebox h2{margin:0 0 4px;font-size:24px}
.gauge{text-align:center;border-radius:50%;width:130px;height:130px;display:flex;align-items:baseline;justify-content:center;border:7px solid var(--line);padding-top:32px;background:var(--bg2)}
.gauge .num{font-size:46px;font-weight:800;line-height:1}.gauge .of{color:var(--muted);font-size:14px}
.verdict-inbox .gauge,.g-ok{border-color:var(--ok)!important}.verdict-risky .gauge,.g-warn{border-color:var(--warn)!important}.verdict-spam .gauge,.g-bad{border-color:var(--bad)!important}
.bars{margin-top:10px;display:grid;gap:6px}.bar{display:grid;grid-template-columns:130px 1fr 60px;gap:10px;align-items:center;font-size:13px}
.track{height:8px;background:var(--line);border-radius:4px;overflow:hidden}.fill{height:100%;background:var(--accent)}
.authrow{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 16px}
.pill{padding:4px 11px;border-radius:999px;font-size:12.5px;border:1px solid var(--line);background:var(--card);font-weight:600}
.pill.ok{border-color:var(--ok);color:var(--ok);background:var(--ok-soft)}.pill.bad{border-color:var(--bad);color:var(--bad);background:var(--bad-soft)}.pill.na{color:var(--muted)}.pill.warn{border-color:var(--warn);color:var(--warn);background:var(--warn-soft)}
h3.sec{margin:26px 0 10px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.ok-line{color:var(--ok);margin:0}
.finding{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--line);border-radius:var(--r-sm);padding:11px 14px;margin-bottom:8px}
.finding summary{cursor:pointer;font-weight:600;list-style:none}.finding summary::-webkit-details-marker{display:none}.finding p{margin:8px 0 0;color:var(--muted)}
.sev-critical{border-left-color:var(--bad)}.sev-major{border-left-color:var(--warn)}.sev-minor{border-left-color:var(--accent)}.sev-info{border-left-color:var(--line)}
.sev{font-size:11px;text-transform:uppercase;padding:2px 7px;border-radius:5px;background:var(--accent-soft);color:var(--accent);margin-right:6px;font-weight:700}
.sev-critical .sev{background:var(--bad-soft);color:var(--bad)}.sev-major .sev{background:var(--warn-soft);color:var(--warn)}.pts{float:right;color:var(--muted);font-weight:500}
.comp{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:6px}.comp .ok{color:var(--ok)}.comp .bad{color:var(--bad)}
.facts pre,.rec,pre.code{background:var(--code);color:var(--code-text);border-radius:10px;padding:14px;overflow:auto;font-size:12.5px;white-space:pre-wrap;word-break:break-all;line-height:1.5}
/* tables */
.tbl{width:100%;border-collapse:collapse;margin:8px 0 12px;font-size:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.tbl th{text-align:left;color:var(--muted);font-weight:600;padding:9px 12px;border-bottom:1px solid var(--line);background:var(--bg2);font-size:12.5px;text-transform:uppercase;letter-spacing:.04em}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line)}.tbl tr:last-child td{border-bottom:0}.tbl.compact td{padding:4px 8px}.tbl-wrap{overflow-x:auto}
/* pricing */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}@media (max-width:1000px){.plans{grid-template-columns:repeat(2,1fr)}}@media (max-width:600px){.plans{grid-template-columns:1fr}}
.plan{position:relative}.plan.featured{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft),var(--shadow)}.plan .price{font-size:34px;font-weight:800;margin:6px 0 2px}.plan .price small{font-size:14px;color:var(--muted);font-weight:500}
.plan ul{list-style:none;padding:0;margin:14px 0 18px}.plan li{padding:5px 0;border-bottom:1px dashed var(--line);font-size:14px}.plan li:last-child{border:0}.plan .tag{position:absolute;top:-11px;right:16px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
/* misc */
.narrow{max-width:560px}.row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
code.key{font-size:14px;word-break:break-all}code.seedlist{font-size:13px;word-break:break-all;max-width:100%}
.st-inbox{color:var(--ok)}.st-spam{color:var(--bad)}.st-missing,.st-error{color:var(--muted)}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px}.kpi .v{font-size:26px;font-weight:800}.kpi .l{color:var(--muted);font-size:12.5px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 16px;margin-bottom:8px}.faq summary{cursor:pointer;font-weight:600}.faq details p{margin:10px 0 0;color:var(--muted)}
.prose>*{max-width:760px}.prose h2{margin-top:36px}.prose h3{margin-top:24px}.prose ul{padding-left:22px}.prose li{margin-bottom:6px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 16px}.tabs a{padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:13.5px}.tabs a.on{background:var(--accent);border-color:var(--accent);color:#fff}
.dark-only{display:none}[data-theme=dark] .dark-only{display:inline}[data-theme=dark] .light-only{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .dark-only{display:inline}:root:not([data-theme=light]) .light-only{display:none}}
@media (max-width:600px){.scorebox{grid-template-columns:1fr}.bar{grid-template-columns:100px 1fr 50px}section{padding:40px 0}}