:root{--navy:#0a1931;--navy-2:#13284a;--cream:#faf8f3;--gold:#c5a572;--gold-d:#a8884f;--ink:#1b2433;--muted:#5b6575;--line:#e6e1d6;--card:#fff;--ok:#067647;--ok-bg:#ecfdf3;--bad:#b42318;--bad-bg:#fef3f2;--info:#7a4b0c;--info-bg:#fdf6e7;--wa:#25D366}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:120px}
body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.6 Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
h1,h2,h3,.serif{font-family:Merriweather,Georgia,"Times New Roman",serif;color:var(--navy)}
a{color:var(--navy)}
.mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
/* header */
.top{position:sticky;top:0;z-index:20;background:var(--navy);color:#fff;box-shadow:0 1px 0 rgba(0,0,0,.2)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;height:58px}
.logo{font-family:Merriweather,Georgia,serif;font-weight:700;font-size:20px;color:#fff;text-decoration:none;white-space:nowrap}.logo span{color:var(--gold)}
.top .mail{color:#cbd3e1;text-decoration:none;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.top .mail:hover{color:#fff}
.top .mail .s{display:none}
.top .wa{color:var(--gold);font-weight:600;font-size:14px;text-decoration:none;white-space:nowrap}.top .wa:hover{color:#fff}
@media (max-width:640px){.logo{font-size:17px}.top .mail .l{display:none}.top .mail .s{display:inline}.top .mail,.top .wa{font-size:12.5px}}
.examnav{position:sticky;top:58px;z-index:19;background:#fff;border-bottom:1px solid var(--line)}
.examnav .wrap{display:flex;gap:8px;overflow-x:auto;padding-top:9px;padding-bottom:9px;scrollbar-width:none}
.examnav a{flex:none;font-size:12px;font-weight:600;text-decoration:none;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 12px;white-space:nowrap;background:#fff}
.examnav a:hover{border-color:var(--navy);color:var(--navy)}
.examnav a.on{background:var(--navy);border-color:var(--navy);color:#fff}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 20px;font:600 15px/1.2 Inter,system-ui,sans-serif;cursor:pointer;text-decoration:none;min-height:46px;text-align:center}
.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:#000}
.btn-gold{background:var(--gold);color:var(--navy)}.btn-gold:hover{background:var(--gold-d)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--navy)}.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-sm{padding:8px 14px;min-height:38px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-block{width:100%}
.sid{display:block;font-size:10.5px;color:#8b93a1;margin-top:6px;word-break:break-all}
/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:start;padding-top:48px;padding-bottom:36px}
@media (max-width:860px){.hero{grid-template-columns:1fr;gap:28px;padding-top:32px}}
.kicker{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-d);font-weight:700;margin:0 0 12px}
h1{font-size:clamp(28px,4.6vw,44px);line-height:1.15;margin:0 0 16px}
.lead{font-size:17.5px;color:var(--muted);margin:0 0 24px;max-width:640px}
.cta{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:520px){.cta .btn{width:100%}}
.ticks{display:flex;flex-wrap:wrap;gap:6px 18px;margin:16px 0 0;padding:0;list-style:none;font-size:13.5px;font-weight:600;color:var(--muted)}
.ticks li:before{content:"\2713  ";color:var(--gold-d)}
.note{font-size:13px;color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);margin:0 0 10px}.crumbs a{color:var(--muted)}
/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.mockcard{box-shadow:0 18px 40px -18px rgba(10,25,49,.35)}
.mockcard .hd{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.mockcard .lbl{font-size:11px;letter-spacing:.14em;color:#8b93a1;font-weight:700}
.seal{flex:none;width:56px;height:56px;border-radius:50%;border:2px solid var(--gold);display:grid;place-items:center;font:700 10px/1.05 Inter,sans-serif;color:var(--navy);text-align:center}
.nums{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:16px 0;padding:14px 0}
.nums b{display:block;font:700 26px/1.1 Merriweather,Georgia,serif;color:var(--navy)}.nums span{font-size:10.5px;letter-spacing:.12em;color:var(--muted)}
.rows div{display:flex;justify-content:space-between;gap:10px;font-size:14px;padding:3px 0}.rows span{color:var(--muted)}.rows b{text-align:right}
section.band{padding:52px 0}
section.white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(22px,3vw,28px);line-height:1.25;margin:0 0 18px}
h3{font-size:17px;margin:0 0 6px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px}
.rule{border-left:2px solid var(--gold);padding-left:18px}.rule p{margin:0;color:var(--muted);font-size:15px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.examcard{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.examcard:hover{border-color:var(--gold);box-shadow:0 10px 24px -14px rgba(10,25,49,.35)}
.examcard small{display:block;font-size:10.5px;letter-spacing:.16em;color:var(--gold-d);font-weight:700}
.examcard b{display:block;font-family:Merriweather,Georgia,serif;color:var(--navy);margin:4px 0}
.examcard span{font-size:13px;color:var(--muted)}
/* practice app */
.app{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;margin:8px 0 8px}
@media (max-width:860px){.app{grid-template-columns:1fr}}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.tab{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:8px 14px;font:600 14px Inter,system-ui,sans-serif;cursor:pointer;min-height:38px}
.tab[aria-pressed=true]{background:var(--navy);color:#fff;border-color:var(--navy)}
select{font:inherit;font-size:14px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:10px;padding:7px 10px;min-height:38px;max-width:100%}
.qhead{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.pill{font-size:12px;font-weight:600;border-radius:999px;padding:4px 10px;background:var(--cream);color:var(--navy);border:1px solid var(--line)}
.bar{height:6px;background:#efebe2;border-radius:6px;overflow:hidden;margin:10px 0 16px}.bar i{display:block;height:100%;background:var(--gold);transition:width .25s}
.qtext{font-size:18px;font-weight:650;margin:0 0 14px;color:var(--navy)}
.opts{display:grid;gap:10px}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:12px;padding:13px 14px;font:inherit;cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--navy)}
.opt .k{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);font-size:13px;font-weight:700}
.opt.sel{border-color:var(--navy);background:var(--cream)}
.opt.right{border-color:var(--ok);background:var(--ok-bg)}.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.opt:disabled{cursor:default}
.expl{margin-top:14px;border-radius:12px;padding:12px 14px;background:var(--cream);border:1px solid #eadfc8;font-size:15px}
.expl b{display:block;margin-bottom:2px}
.expl .src{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
.report{font-size:13px;margin-top:10px;color:var(--muted)}.report a{color:var(--muted)}
.navq{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:16px}
.status{font-size:14px;color:var(--muted)}
.side h2{font-size:16px;margin:0 0 10px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;text-align:center}
.stats div{border:1px solid var(--line);border-radius:12px;padding:8px 4px}.stats b{display:block;font-size:20px;color:var(--navy)}.stats span{font-size:12px;color:var(--muted)}
.topics{display:grid;gap:6px;margin-top:14px;font-size:13px}
.topics div{display:flex;justify-content:space-between;gap:8px;color:var(--muted)}
.lock{text-align:center;padding:12px 4px}
.lock h2{margin:.2em 0}
.lock ul{text-align:left;max-width:440px;margin:14px auto;padding-left:20px}
.msg{border-radius:12px;padding:10px 14px;margin:0 0 14px;font-size:14px}
.msg.ok{background:var(--ok-bg);color:var(--ok)}.msg.err{background:var(--bad-bg);color:var(--bad)}.msg.info{background:var(--info-bg);color:var(--info)}
.timer{font-variant-numeric:tabular-nums;font-weight:700;color:var(--navy)}
.result{text-align:center}.result .big{font:800 44px/1.1 Merriweather,Georgia,serif;color:var(--navy);margin:6px 0}
.review{margin-top:18px;text-align:left;display:grid;gap:10px}
.review>div{border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px}
/* trust + pricing */
.progress{height:10px;background:#efebe2;border-radius:6px;overflow:hidden;margin:8px 0 12px}.progress i{display:block;height:100%;background:var(--gold)}
.price{max-width:560px;margin:0 auto;text-align:center;border-top:4px solid var(--gold);box-shadow:0 18px 40px -20px rgba(10,25,49,.35);padding:30px 24px}
.price .amt{font:900 52px/1 Merriweather,Georgia,serif;color:var(--navy)}
.price .line{font-weight:600;color:var(--navy);margin:12px 0 2px}
.price ul{list-style:none;padding:0;margin:20px auto 24px;max-width:380px;text-align:left;font-size:15px}
.price li{padding:5px 0}.price li:before{content:"\2713  ";color:var(--gold-d);font-weight:700}
.price .fine{font-size:12px;color:#8b93a1;margin-top:14px}
/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}
summary{font-weight:650;cursor:pointer;color:var(--navy)}
details p{color:var(--muted);margin:10px 0 2px}
/* sample questions (topic pages) */
.sq{margin-bottom:14px}.sq ol{margin:10px 0 0;padding-left:22px}.sq li{margin:3px 0}
.sq details{margin:12px 0 0;background:var(--cream)}
.prose p,.prose li{color:#3a4454}.prose ol,.prose ul{padding-left:22px}
.chips{display:flex;flex-wrap:wrap;gap:8px}.chips a{font-size:13.5px;text-decoration:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 13px;color:var(--navy)}.chips a:hover{border-color:var(--gold)}
/* footer */
footer{background:var(--navy);color:#a9b3c4;padding:44px 0 34px;font-size:13.5px}
footer .cols{gap:30px}
footer h4{color:#fff;margin:0 0 10px;font-size:14px}
footer a{color:#fff}
footer p{margin:0 0 10px;line-height:1.6}
footer ul{list-style:none;padding:0;margin:0}footer li{padding:2px 0}
footer .copy{border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:16px;font-size:12px}
.fab{position:fixed;right:18px;bottom:18px;z-index:30;width:58px;height:58px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 10px 28px rgba(0,0,0,.28)}
.fab:hover{filter:brightness(.95)}
.fab svg{width:30px;height:30px}
.sr{position:absolute;left:-9999px}
footer .serif{color:#fff}
/* trust + paid state */
.btn-lg{padding:15px 24px;font-size:16px;min-height:52px}
.btn-wa{background:var(--wa);color:#fff}.btn-wa:hover{background:#1da851}
.trustbar{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0;padding:0;list-style:none}
.trustbar li{font-size:12.5px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.trustbar b{color:var(--navy);font-weight:600}
.lockline{font-size:12px;color:var(--muted);text-align:center;margin:8px 0 0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.step{background:var(--cream);border:1px solid var(--line);border-radius:14px;padding:20px}
.step i{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:var(--gold);font:700 15px/1 Merriweather,Georgia,serif;font-style:normal;margin-bottom:12px}
.step p{margin:0;color:var(--muted);font-size:15px}
.contact{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;border-top:3px solid var(--wa)}
.contact>div:first-child{flex:1 1 340px}
.cbtns{display:flex;flex-direction:column;gap:8px;flex:0 1 260px}
@media (max-width:520px){.cbtns{flex-basis:100%}}
[data-paid]{display:none}
html.paid [data-buy]{display:none!important}
html.paid [data-paid]{display:block}
.paidbox{background:var(--ok-bg);border:1px solid #abefc6;border-radius:14px;padding:18px 20px;max-width:560px}
.paidbox b{display:block;color:var(--ok);font-size:17px;margin-bottom:4px}
.paidbox span{display:block;color:var(--ink);font-size:14.5px;margin-bottom:12px}