:root{--ink:#18212f;--ink2:#334155;--muted:#5f6b7a;--line:#e4e0d8;--line2:#efebe4;--bg:#faf8f4;--card:#fff;--brand:#1f3a68;--brand2:#2c5191;--brandbg:#eef2f9;--accent:#b4532a;--red:#b42318;--redbg:#fde8e6;--amber:#a15c07;--amberbg:#fdf1dc;--green:#18794e;--greenbg:#e5f4ec;--radius:14px;--serif:"Fraunces",Georgia,"Times New Roman",serif;--sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;font-size:15.5px}
h1,h2,h3,.serif{font-family:var(--serif);font-optical-sizing:auto;letter-spacing:-.015em;font-weight:600;color:var(--ink)}
a{color:var(--brand2)}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
.narrow{max-width:780px}
/* header */
.top{background:rgba(250,248,244,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:600;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.logo svg{width:30px;height:30px;flex:none}
.nav{display:flex;align-items:center;gap:22px}
.nav a{color:var(--ink2);text-decoration:none;font-size:14.5px;font-weight:500}.nav a:hover{color:var(--brand)}
.nav .btn{padding:8px 16px}
@media (max-width:820px){.nav a.hide-m{display:none}.nav{gap:12px}}
/* buttons */
button,.btn{font:inherit;cursor:pointer;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 16px;font-weight:600;font-size:14.5px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1.2}
button:hover,.btn:hover{background:#f6f3ee}
.primary,a.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.primary:hover,a.primary:hover{background:var(--brand2)}
.ghost{background:transparent;border-color:transparent}.ghost:hover{background:#f1ede6}
.danger{color:var(--red)}.danger:hover{background:var(--redbg)}
button:disabled{opacity:.55;cursor:not-allowed}
.sm{padding:6px 11px;font-size:13.5px;border-radius:8px}
/* forms */
label.f{display:block;font-size:13.5px;font-weight:600;color:var(--ink2);margin:0 0 6px}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=search],select,textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:#fff;border:1px solid #d9d4ca;border-radius:10px;padding:10px 13px;outline:none}
textarea{min-height:240px;resize:vertical;line-height:1.65;padding:14px 16px}
input:focus,select:focus,textarea:focus{border-color:var(--brand2);box-shadow:0 0 0 3px rgba(44,81,145,.15)}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media (max-width:860px){.grid3,.grid4{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.grid2,.grid3,.grid4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 1px 2px rgba(24,33,47,.04),0 10px 30px rgba(24,33,47,.04)}
.pad{padding:22px}
.muted{color:var(--muted)}.small{font-size:13.5px}.tiny{font-size:12.5px}
.alert{padding:11px 14px;border-radius:10px;background:var(--redbg);color:#7a1a12;margin:12px 0;font-size:14.5px;display:none}
.alert.ok{background:var(--greenbg);color:#0d4f32}
.alert.show{display:block}
.pill{font-size:12px;font-weight:700;padding:2px 9px;border-radius:99px;white-space:nowrap;background:var(--brandbg);color:var(--brand);display:inline-block}
.pill.red{background:var(--redbg);color:var(--red)}.pill.amber{background:var(--amberbg);color:var(--amber)}.pill.green{background:var(--greenbg);color:var(--green)}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}
/* hero */
.hero{padding:56px 0 22px;text-align:center}
.hero h1{font-size:clamp(34px,5.4vw,60px);line-height:1.05;margin:10px 0 16px;font-weight:600}
.hero h1 em{font-style:italic;color:var(--brand)}
.hero p.lead{color:var(--ink2);max-width:680px;margin:0 auto;font-size:18px}
.trust{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;color:var(--muted);font-size:13.5px;margin:16px 0 0}
.trust span::before{content:"✓  ";color:var(--green);font-weight:700}
/* checker */
.checker{padding:18px;margin:26px 0 10px}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;flex-wrap:wrap}
.count{font-size:13.5px;color:var(--muted)}.count.over{color:var(--red);font-weight:600}
.progress{padding:18px 20px;margin:16px 0;display:none}
.step{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--muted);padding:4px 0}
.step .dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);flex:none;display:grid;place-items:center;font-size:11px}
.step.run{color:var(--ink)}.step.run .dot{border-color:var(--brand2);border-top-color:transparent;animation:spin .8s linear infinite}
.step.done{color:var(--ink)}.step.done .dot{background:var(--green);border-color:var(--green);color:#fff}.step.done .dot::after{content:"✓"}
.step.fail .dot{background:var(--amber);border-color:var(--amber);color:#fff}.step.fail .dot::after{content:"!"}
@keyframes spin{to{transform:rotate(360deg)}}
/* sections */
section.band{padding:56px 0}
section.band h2{font-size:clamp(26px,3.4vw,38px);margin:6px 0 10px;line-height:1.15}
section.band .sub{color:var(--ink2);max-width:660px;font-size:16.5px;margin:0 0 26px}
.band.alt{background:#f3efe7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature h3{font-size:19px;margin:10px 0 6px}.feature p{margin:0;color:var(--ink2);font-size:14.5px}
.ico{width:40px;height:40px;border-radius:10px;background:var(--brandbg);color:var(--brand);display:grid;place-items:center;font-size:19px}
.aud{padding:26px}.aud h3{font-size:24px;margin:6px 0 10px}.aud ul{margin:0;padding-left:18px;color:var(--ink2)}.aud li{margin:6px 0}
.price{padding:26px;display:flex;flex-direction:column}.price h3{margin:0;font-size:22px}.price .amt{font-family:var(--serif);font-size:34px;margin:8px 0}.price ul{padding-left:18px;color:var(--ink2);flex:1}.price.pro{border:2px solid var(--brand)}
.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px 16px;margin-bottom:8px}.faq summary{font-weight:600;cursor:pointer}.faq p{color:var(--ink2);margin:8px 0 0;font-size:14.5px}
footer.foot{border-top:1px solid var(--line);background:#f3efe7;color:var(--muted);font-size:13.5px;padding:28px 0;margin-top:20px}
footer.foot .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
footer.foot a{color:var(--ink2);text-decoration:none;margin-right:16px}
/* report */
.report{margin:18px 0 30px;scroll-margin-top:80px}
.scorehead{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:14px;margin-bottom:14px}
@media (max-width:900px){.scorehead{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.scorehead{grid-template-columns:1fr}}
.sc{padding:18px;display:flex;gap:14px;align-items:center}
.sc h4{margin:0;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-family:var(--sans)}
.sc .big{font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.2;margin:3px 0}
.sc p{margin:0;font-size:13px;color:var(--muted)}
.sc.overall{background:linear-gradient(140deg,#fff,#f2f5fb);border:2px solid #c9d5ea}
.grade{width:86px;height:86px;border-radius:50%;flex:none;display:grid;place-items:center;font-family:var(--serif);font-size:38px;font-weight:600;color:#fff;background:var(--c,var(--brand));box-shadow:inset 0 0 0 5px rgba(255,255,255,.25)}
.gauge{--p:0;--c:var(--green);width:64px;height:64px;border-radius:50%;flex:none;background:conic-gradient(var(--c) calc(var(--p)*1%),#ece8e0 0);display:grid;place-items:center}
.gauge b{width:50px;height:50px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:15px}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);padding:0 10px;overflow-x:auto}
.tab{border:0;background:none;border-radius:0;padding:14px 12px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;font-weight:600}
.tab:hover{background:none;color:var(--ink)}.tab.on{color:var(--ink);border-bottom-color:var(--brand)}
.panel{padding:20px;display:none}.panel.on{display:block}
@media (max-width:600px){.panel{padding:14px}.tab{padding:12px 8px;font-size:14px}}
.metric{padding:14px 0;border-bottom:1px solid var(--line2)}.metric:last-child{border-bottom:0}
.metric .mh{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.metric .mh b{font-size:15px}.metric .mh span{font-size:13px;color:var(--muted);text-align:right}
.metric p{margin:6px 0 0;font-size:14px;color:var(--ink2)}
.meter{height:8px;background:#ece8e0;border-radius:99px;overflow:hidden;margin-top:8px}.meter i{display:block;height:100%;border-radius:99px}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:12px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-right:5px}
.doc{font-size:15.5px;line-height:1.9;background:#fffdf9;border:1px solid var(--line);border-radius:10px;padding:16px 18px;max-height:540px;overflow:auto;font-family:var(--serif);font-weight:400}
.doc p{margin:0 0 12px}
.s{border-radius:4px;padding:1px 1px}
.s.copied{background:var(--redbg);box-shadow:inset 0 -2px 0 var(--red);cursor:pointer}
.s.paraphrased{background:var(--amberbg);box-shadow:inset 0 -2px 0 #e19a1b;cursor:pointer}
.s.flash{outline:2px solid var(--brand2)}
.s sup{font-size:10px;font-weight:700;color:var(--brand);margin-left:2px;font-family:var(--sans)}
.src{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px}
.src .t{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.src a{font-weight:600;word-break:break-word;text-decoration:none}
.src .u{color:var(--muted);font-size:12.5px;word-break:break-all}
.m{font-size:13.5px;margin-top:8px;padding-left:10px;border-left:3px solid var(--line)}
.m b{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.explain{background:var(--brandbg);border:1px solid #d3ddef;border-radius:10px;padding:14px 16px;font-size:14.5px;margin-bottom:14px}
.note{font-size:13px;color:var(--muted);background:#fbfaf7;border:1px dashed #d4cec2;border-radius:10px;padding:12px 14px;margin-top:16px}
.adv{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:#fff}
.adv .ah{display:flex;gap:10px;align-items:baseline;justify-content:space-between}
.adv b{font-size:14.5px}.adv p{margin:6px 0 0;font-size:14px;color:var(--ink2)}
.adv q{display:block;margin-top:8px;font-family:var(--serif);font-size:14.5px;color:var(--ink);border-left:3px solid var(--line);padding-left:10px;quotes:none}
.adv .rw{margin-top:8px;background:var(--greenbg);border-radius:8px;padding:8px 10px;font-size:14px}
.tip{position:fixed;z-index:50;max-width:340px;background:var(--ink);color:#fff;font-size:13px;border-radius:8px;padding:8px 10px;pointer-events:none;display:none}
.empty{color:var(--muted);font-size:14.5px;padding:12px 0}
/* app shell */
.shell{display:grid;grid-template-columns:230px 1fr;min-height:calc(100vh - 64px)}
.side{border-right:1px solid var(--line);padding:18px 12px;background:#f6f3ed;position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto}
.side a{display:flex;gap:10px;align-items:center;padding:9px 12px;border-radius:9px;color:var(--ink2);text-decoration:none;font-weight:500;font-size:14.5px;margin-bottom:2px}
.side a:hover{background:#ece7de}.side a.on{background:#fff;color:var(--brand);box-shadow:0 1px 2px rgba(0,0,0,.05);font-weight:600}
.side .sep{font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:18px 12px 6px;font-weight:700}
.main{padding:26px 30px 60px;min-width:0}
.main h1{font-size:30px;margin:0 0 4px}
.main .lede{color:var(--ink2);margin:0 0 20px}
.usage{margin:18px 6px 0;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:12.5px;color:var(--muted)}
.usage .meter{height:6px;margin:4px 0 8px}
@media (max-width:860px){.shell{grid-template-columns:1fr}.side{position:static;height:auto;display:flex;gap:4px;overflow-x:auto;padding:8px;border-right:0;border-bottom:1px solid var(--line)}.side .sep,.side .usage{display:none}.side a{white-space:nowrap;margin:0}.main{padding:18px 16px 50px}}
table.list{width:100%;border-collapse:collapse;font-size:14.5px}
table.list th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:10px;border-bottom:1px solid var(--line)}
table.list td{padding:12px 10px;border-bottom:1px solid var(--line2);vertical-align:top}
table.list tr:hover td{background:#fbf9f5}
.doclink{font-weight:600;color:var(--ink);text-decoration:none}.doclink:hover{color:var(--brand)}
@media (max-width:700px){table.list .hm{display:none}}
.toolgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.toolcard{padding:18px;text-decoration:none;color:inherit;display:block;transition:border-color .15s,transform .15s}
.toolcard:hover{border-color:#b8c6de;transform:translateY(-1px)}
.toolcard h3{font-size:17px;margin:10px 0 4px}.toolcard p{margin:0;font-size:13.5px;color:var(--muted)}
.out{white-space:pre-wrap;background:#fffdf9;border:1px solid var(--line);border-radius:10px;padding:16px;font-family:var(--serif);font-size:15.5px;line-height:1.75;min-height:80px}
.spark{display:flex;align-items:flex-end;gap:4px;height:60px}
.spark i{flex:1;max-width:22px;background:var(--brand2);border-radius:3px 3px 0 0;opacity:.85}
.key{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px;background:#f3efe7;border:1px solid var(--line);border-radius:8px;padding:10px 12px;word-break:break-all}
pre.code{background:#16202e;color:#e6edf6;border-radius:10px;padding:14px 16px;overflow:auto;font-size:13px;line-height:1.55}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:#f1ede6;padding:1px 5px;border-radius:5px}
pre.code code{background:none;padding:0;font-size:inherit}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:14px;z-index:60;display:none;box-shadow:0 10px 30px rgba(0,0,0,.2)}
.auth{max-width:420px;margin:50px auto;padding:30px}
.auth h1{font-size:30px;margin:0 0 6px;text-align:center}
.auth .f{margin-top:14px}
.prose h1{font-size:36px;margin:30px 0 8px}.prose h2{font-size:23px;margin:30px 0 8px}.prose h3{font-size:18px;margin:22px 0 6px}.prose p,.prose li{color:var(--ink2)}
.draft-banner{background:var(--amberbg);border:1px solid #f1d39d;color:#6b3d05;border-radius:10px;padding:10px 14px;font-size:14px;margin:20px 0}
.hidden{display:none!important}
@media print{.top,.side,.checker,.tabs,.noprint,footer,.toast{display:none!important}.shell{display:block}.panel{display:block!important}.doc{max-height:none}.main{padding:0}}
@media (max-width:860px){input[type=text],input[type=email],input[type=password],input[type=url],input[type=search],select,textarea{font-size:16px}}
@media (max-width:820px){.nav .hide-m{display:none}}
@media (max-width:860px){.shell{grid-template-columns:minmax(0,1fr)}.side,.main{min-width:0}}