:root{--bg:#F3F6FB;--surface:#FFFFFF;--ink:#0B1220;--ink2:#2B3A52;--muted:#5F6F86;--line:#E1E7F0;--primary:#1F4FD6;--primary-h:#1840B0;--on-primary:#FFFFFF;--soft:#EAF0FF;--field:#F7F9FC;--ok:#0F7B53;--bad:#B42318;
 --shadow:0 1px 2px rgba(11,18,32,.06),0 14px 34px -18px rgba(11,18,32,.22);
 box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
 font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0A101C;--surface:#111A2B;--ink:#EEF2FA;--ink2:#C3CEE0;--muted:#92A1B8;--line:#22304A;--primary:#6B93FF;--primary-h:#8AA9FF;--on-primary:#07101F;--soft:#15224A;--field:#0D1626;--ok:#4ADE9F;--bad:#FF8A80;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0A101C;--surface:#111A2B;--ink:#EEF2FA;--ink2:#C3CEE0;--muted:#92A1B8;--line:#22304A;--primary:#6B93FF;--primary-h:#8AA9FF;--on-primary:#07101F;--soft:#15224A;--field:#0D1626;--ok:#4ADE9F;--bad:#FF8A80;color-scheme:dark}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--primary)}[hidden]{display:none!important}
h1,h2,h3{line-height:1.15;letter-spacing:-.025em;margin:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.top{background:var(--surface);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:18px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo b{color:var(--primary)}.mark{width:30px;height:30px;flex:none}
.nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;max-width:100%}
.nav a{color:var(--ink2);text-decoration:none;font-weight:600;font-size:.93rem;padding:8px 12px;border-radius:8px;white-space:nowrap}
.nav a:hover{background:var(--soft);color:var(--primary)}
.cta{background:var(--primary);color:var(--on-primary);font-weight:700;font-size:.93rem;text-decoration:none;padding:10px 16px;border-radius:10px}
.cta:hover{background:var(--primary-h)}
@media (max-width:700px){.cta{display:none}.nav{order:3;width:100%;margin-left:0}}

/* hero */
.hero{background:linear-gradient(180deg,var(--soft),var(--bg) 85%);padding:34px 0 20px}
.hero-grid{display:grid;gap:26px;align-items:start}
@media (min-width:940px){.hero-grid{grid-template-columns:1fr 1.02fr;gap:44px;padding-top:12px}.hero-copy{position:sticky;top:20px}}
.crumb{font-size:.85rem;color:var(--muted);margin:0 0 12px}.crumb a{color:var(--muted)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin:0 0 8px}
h1{font-size:clamp(2rem,6.4vw,3.2rem);font-weight:800}
h1 mark{background:none;color:var(--primary);padding:0}
.lead{font-size:1.1rem;color:var(--ink2);margin:14px 0 18px;max-width:52ch}
.badges{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 6px}
.badges li{font-size:.82rem;font-weight:600;color:var(--ink2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 12px}
.badges li::before{content:"\2713\00a0";color:var(--ok)}
.btnrow{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}

/* tool card */
.tool{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:var(--shadow)}
#drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-height:210px;border:2px dashed #AFC0E6;border-radius:14px;background:var(--field);cursor:pointer;text-align:center;padding:24px;color:var(--ink2);transition:background .15s,border-color .15s}
#drop svg{color:var(--primary)}#drop strong{font-size:1.15rem;color:var(--ink)}#drop span{font-size:.9rem;color:var(--muted)}
#drop:hover,#drop.over{background:var(--soft);border-color:var(--primary)}
#drop:focus-within{outline:3px solid var(--primary);outline-offset:3px}
#drop input{position:absolute;opacity:0;width:1px;height:1px}
.err{color:var(--bad);font-weight:600;margin:12px 0 0}
.src{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--field);margin-bottom:6px}
.src img{width:56px;height:56px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.src b{display:block;word-break:break-all;font-size:.93rem}.src small{color:var(--muted)}
.link{margin-left:auto;background:none;border:0;color:var(--primary);font:inherit;font-weight:600;cursor:pointer;padding:8px}
.fld{margin-top:16px}
label,.lab{display:block;font-weight:600;font-size:.88rem;color:var(--ink2);margin-bottom:6px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
input[type=number],select{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:var(--field);border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;min-height:46px}
input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid var(--primary);outline-offset:2px}
.row{display:flex;gap:10px}.row>*:first-child{flex:1}.row>select{width:96px}
.check{display:flex;gap:10px;align-items:center;font-weight:500;color:var(--ink);margin:12px 0 0}
.check input{width:19px;height:19px;accent-color:var(--primary);flex:none}
.hint{color:var(--muted);font-size:.85rem;margin:8px 0 0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{font:inherit;font-size:.88rem;font-weight:600;color:var(--ink2);background:var(--field);border:1.5px solid var(--line);border-radius:999px;padding:7px 14px;cursor:pointer}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip[aria-pressed=true]{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}
.btn{display:block;width:100%;font:inherit;font-size:1.02rem;font-weight:700;background:var(--primary);color:var(--on-primary);border:0;border-radius:12px;padding:14px;min-height:50px;cursor:pointer;margin-top:20px;transition:background .15s}
.btn:hover{background:var(--primary-h)}.btn:disabled{opacity:.6;cursor:wait}
.btn.alt{background:var(--ink);color:var(--bg)}
.xb{font:inherit;font-weight:600;font-size:.9rem;color:var(--primary);background:var(--soft);border:1.5px solid transparent;border-radius:10px;padding:9px 14px;cursor:pointer;min-height:44px;text-align:left}
.xb:hover{border-color:var(--primary)}.xb[aria-pressed=true]{background:var(--primary);color:var(--on-primary)}
#cropBox{margin-top:16px;border-top:1px solid var(--line);padding-top:14px}
#cropWrap{display:flex;justify-content:center;margin:12px 0}
#cropCv{max-width:100%;touch-action:none;cursor:crosshair;border-radius:8px}
.crow{display:flex;gap:10px;align-items:center}.crow .btn{margin-top:0;flex:1}
.panel{margin-top:16px;border-top:1px solid var(--line);padding-top:16px}
.big{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.big .n{font-size:clamp(2.4rem,10vw,3.4rem);font-weight:800;letter-spacing:-.04em;line-height:1;color:var(--primary)}
.big .was{color:var(--muted);text-decoration:line-through}
.meter{height:12px;border-radius:999px;background:var(--field);border:1px solid var(--line);overflow:hidden;margin:14px 0 6px}
.meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),#7FA4FF);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.meter-l{display:flex;justify-content:space-between;color:var(--muted);font-size:.8rem}
.status{font-weight:600;margin:14px 0 0}.status.ok{color:var(--ok)}.status.bad{color:var(--bad)}
.prev{margin-top:14px;border-radius:12px;border:1px solid var(--line);padding:8px;text-align:center;background:conic-gradient(var(--field) 25%,var(--surface) 0 50%,var(--field) 0 75%,var(--surface) 0) 0 0/16px 16px}
.prev img{max-width:100%;max-height:300px;border-radius:6px}
.brow{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.brow span{word-break:break-all;font-size:.92rem}.brow .xb{flex:none}

/* sections */
.sec{margin-top:64px}.sec>h2{font-size:clamp(1.6rem,4.2vw,2.15rem);margin-bottom:10px}
.sec>p.sub{color:var(--muted);margin:0 0 22px;max-width:60ch}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:34px}
.strip div{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.strip b{display:block;margin-bottom:2px}.strip span{color:var(--muted);font-size:.9rem}
.tgroup{margin-top:30px}.tgroup h3{font-size:1.05rem;margin-bottom:12px;color:var(--ink2)}
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.tcard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s,box-shadow .15s}
.tcard b{display:block;font-size:.98rem;margin-bottom:2px}.tcard span{color:var(--muted);font-size:.88rem}
.tcard:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.steps{counter-reset:s;display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.step{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.step::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--soft);color:var(--primary);font-weight:800;margin-bottom:10px}
.step b{display:block;margin-bottom:4px}.step span{color:var(--muted);font-size:.93rem}
.post{max-width:780px}.post h2{font-size:clamp(1.5rem,4vw,2rem);margin-bottom:12px}
.post h3{margin:28px 0 8px;font-size:1.2rem}.post p,.post li{color:var(--ink2)}.post ul,.post ol{padding-left:22px}.post li{margin-bottom:6px}
.post .intro{font-size:1.06rem}
.szt{width:100%;border-collapse:collapse;max-width:560px;margin:0 0 14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.szt td{border-bottom:1px solid var(--line);padding:12px 14px}.szt td:last-child{font-weight:700;text-align:right}
.note{background:var(--soft);border-left:4px solid var(--primary);border-radius:8px;padding:12px 14px;font-size:.92rem;color:var(--ink)!important;max-width:560px}
details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px;max-width:780px}
summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}summary::after{content:"+";font-weight:700;font-size:1.25rem;color:var(--primary)}
details[open] summary::after{content:"\2013"}details p{margin:0 0 16px;color:var(--ink2)}
.rel{display:flex;flex-wrap:wrap;gap:8px}
.rel a{font-size:.9rem;font-weight:600;color:var(--ink2);text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 14px}
.rel a:hover{border-color:var(--primary);color:var(--primary)}

/* footer */
.foot{background:#0B1220;color:#AAB7CC;margin-top:72px;padding:44px 0 28px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:28px}
.fgrid b{display:block;color:#fff;margin-bottom:10px}.fgrid a{display:block;color:#AAB7CC;text-decoration:none;font-size:.92rem;padding:4px 0}
.fgrid a:hover{color:#fff}.fgrid p{margin:0;font-size:.92rem}
.copy{margin:30px 0 0;padding-top:18px;border-top:1px solid #22304A;font-size:.85rem;text-align:center}

/* legal + list pages */
.legal{max-width:760px;margin:0 auto;padding:36px 20px 10px}.legal h1{font-size:clamp(1.9rem,6vw,2.6rem);margin-bottom:12px}
.legal h2{font-size:1.25rem;margin:28px 0 8px}.legal p,.legal li{color:var(--ink2)}.legal ul{padding-left:22px}
.phead{padding:34px 0 6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important}html{scroll-behavior:auto}}

/* ===== v3: category themes, polish ===== */
body[class*="c-"]{--primary:var(--cc);--primary-h:var(--cch);--soft:var(--cs)}
.hero{position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(var(--line) 1px,transparent 1px) 0 0/24px 24px;opacity:.6;-webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);mask-image:linear-gradient(180deg,#000,transparent 88%);pointer-events:none}
.hero>.wrap{position:relative}
h1 mark{background:linear-gradient(transparent 66%,var(--soft) 66%);color:var(--primary);padding:0 .06em}
.tool{border-top:4px solid var(--primary)}
.stepper{list-style:none;display:flex;gap:6px;margin:0 0 16px;padding:0;counter-reset:st}
.stepper li{flex:1;text-align:center;font-size:.8rem;font-weight:700;color:var(--muted);padding:8px 4px;border-radius:8px;background:var(--field);border:1px solid var(--line);counter-increment:st;transition:background .2s,color .2s}
.stepper li::before{content:counter(st) ". "}
.stepper li.on{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}
.stepper li.done{background:var(--soft);color:var(--primary);border-color:transparent}
.ic{flex:none;width:38px;height:38px;border-radius:10px;background:var(--cs);color:var(--cc);display:grid;place-items:center}
.ic svg{width:20px;height:20px}
.tcard{display:flex;gap:12px;align-items:flex-start}
.tcard>div{min-width:0}.tcard:hover{border-color:var(--cc)}
.tgroup h3{display:flex;align-items:center;gap:8px}.tgroup h3 .ic{width:28px;height:28px;border-radius:8px}.tgroup h3 .ic svg{width:16px;height:16px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;color:var(--cc);background:var(--cs);border-radius:999px;padding:5px 12px 5px 8px;text-decoration:none;margin-bottom:12px}
.pill svg{width:16px;height:16px}
.catgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.catcard{display:block;background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--cc);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s}
.catcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.catcard .ic{margin-bottom:12px;width:46px;height:46px;border-radius:12px}.catcard .ic svg{width:24px;height:24px}
.catcard b{display:block;font-size:1.06rem}.catcard span{display:block;color:var(--muted);font-size:.9rem;margin:2px 0 10px}
.catcard em{font-style:normal;font-weight:700;font-size:.86rem;color:var(--cc)}
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.feat .ic{margin-bottom:12px}.feat b{display:block;margin-bottom:4px}.feat span{color:var(--muted);font-size:.93rem}
.search{position:relative;max-width:480px;margin:0 0 6px}
.search input{width:100%;padding:13px 14px 13px 42px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);font:inherit;color:var(--ink)}
.search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--muted);width:18px;height:18px}
.demo{display:inline-flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:9px 14px;font-weight:700;margin:14px 0 0;box-shadow:var(--shadow)}
.demo span{font-size:.7rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}.demo b{color:var(--primary)}
.tt{background:none;border:1px solid var(--line);border-radius:10px;width:40px;height:40px;display:grid;place-items:center;cursor:pointer;color:var(--ink2)}
.tt svg{width:18px;height:18px}.tt:hover{background:var(--soft);color:var(--primary)}
.totop{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));width:44px;height:44px;border-radius:50%;border:0;background:var(--primary);color:var(--on-primary);font-size:1.2rem;cursor:pointer;box-shadow:var(--shadow);z-index:20}
.bullets{list-style:none;padding:0;margin:0;display:grid;gap:10px;max-width:760px}
.bullets li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--ink2)}.bullets a{font-weight:700}
.hubhead{display:flex;gap:16px;align-items:center}.hubhead .ic{width:60px;height:60px;border-radius:16px}.hubhead .ic svg{width:30px;height:30px}
.rv .sec{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.rv .sec.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv .sec{opacity:1;transform:none}}
.c-size{--cc:#1F4FD6;--cch:#1840B0;--cs:#EAF0FF}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-size{--cc:#6B93FF;--cch:#8AA9FF;--cs:#15224A}}
:root[data-theme="dark"] .c-size{--cc:#6B93FF;--cch:#8AA9FF;--cs:#15224A}
.c-dim{--cc:#0E7C86;--cch:#0A646C;--cs:#E0F5F6}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-dim{--cc:#4FD1C5;--cch:#7ADFD6;--cs:#0F2F30}}
:root[data-theme="dark"] .c-dim{--cc:#4FD1C5;--cch:#7ADFD6;--cs:#0F2F30}
.c-comp{--cc:#7C3AED;--cch:#6227C9;--cs:#F0E9FF}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-comp{--cc:#A78BFA;--cch:#C4B0FC;--cs:#241A4A}}
:root[data-theme="dark"] .c-comp{--cc:#A78BFA;--cch:#C4B0FC;--cs:#241A4A}
.c-gen{--cc:#BE185D;--cch:#9D1249;--cs:#FDE8F1}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-gen{--cc:#F472B6;--cch:#F79BCB;--cs:#3A1530}}
:root[data-theme="dark"] .c-gen{--cc:#F472B6;--cch:#F79BCB;--cs:#3A1530}
.c-bulk{--cc:#C2410C;--cch:#9F3409;--cs:#FFEDE0}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-bulk{--cc:#FB923C;--cch:#FDB070;--cs:#3A2210}}
:root[data-theme="dark"] .c-bulk{--cc:#FB923C;--cch:#FDB070;--cs:#3A2210}
.c-exam{--cc:#0F7B53;--cch:#0B6242;--cs:#DDF5EA}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .c-exam{--cc:#4ADE9F;--cch:#7BE9BC;--cs:#0F3025}}
:root[data-theme="dark"] .c-exam{--cc:#4ADE9F;--cch:#7BE9BC;--cs:#0F3025}