/* CleverCat.CC — one stylesheet, blueprint workshop theme */
:root{--ink:#1d2733;--ink2:#5c6673;--paper:#fbfaf7;--line:#e3e0d8;--blue:#17334f;--blue2:#2c6fb5;--yellow:#f5c21b;--card:#fff;--code:#f4f2ec}
@media (prefers-color-scheme:dark){:root{--ink:#e9edf2;--ink2:#a3aebb;--paper:#11151b;--line:#27313d;--card:#161c24;--code:#1b222b;--blue2:#6fb0f0}}
body{background:var(--paper);color:var(--ink)}
a{color:var(--blue2)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px}.skip:focus{left:.5rem;top:.5rem;background:var(--yellow);color:#17334f;padding:.5rem .8rem;border-radius:8px;z-index:60}
/* menu */
nav.menu{display:block;background:var(--blue);border-top:1px solid rgba(255,255,255,.12);max-height:0;overflow:hidden;transition:max-height .25s ease}
nav.menu.open{max-height:220vh;overflow:auto}
.menu-in{max-width:64rem;margin:0 auto;padding:.4rem .9rem 1rem}
.menu h3{color:var(--yellow);font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;margin:.9rem 0 .35rem}
.menu ul{list-style:none;margin:0;padding:0;display:grid;gap:.1rem;grid-template-columns:1fr}
.menu a{display:block;color:#dbe6f2;text-decoration:none;padding:.35rem .4rem;border-radius:6px;font-size:.9rem}
.menu a:hover{background:#22486b;color:#fff}
.langs{display:flex;gap:.35rem;margin-top:1rem;flex-wrap:wrap}
.langs a{border:1px solid #34608c;border-radius:999px;padding:.25rem .7rem;font-size:.8rem}
.langs a[aria-current]{background:var(--yellow);color:#17334f;border-color:var(--yellow);font-weight:700}
/* hero with blueprint grid */
.hero{background:var(--blue);color:#fff;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:22px 22px}
.hero-in{max-width:64rem;margin:0 auto;padding:1.6rem .9rem 1.8rem}
.hero h1{color:#fff;font-size:1.75rem;max-width:22ch}
.hero p{color:#cfdcea;max-width:60ch;margin:.4rem 0 0}
.pills{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.9rem}
.pill{font-size:.75rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:#fff;padding:.22rem .6rem;border-radius:999px}
.pill b{color:var(--yellow)}
/* content */
.crumb{color:var(--ink2);margin:0 0 .3rem}
.crumb a{color:var(--ink2)}
p{margin:.6rem 0}
h2{border-left:4px solid var(--yellow);padding-left:.55rem}
h3{font-size:1rem;margin:1.1rem 0 .2rem}
ol.steps{padding-left:1.1rem}ol.steps li{margin:.3rem 0}
ul.ex{list-style:none;padding:0;margin:.5rem 0;display:grid;gap:.45rem}
ul.ex li{background:var(--code);border-left:3px solid var(--blue2);padding:.5rem .7rem;border-radius:0 8px 8px 0;font-size:.94rem}
details{border:1px solid var(--line);border-radius:10px;padding:.6rem .8rem;margin:.5rem 0;background:var(--card)}
details summary{cursor:pointer;font-weight:600}
details p{margin:.5rem 0 0;color:var(--ink2)}
/* tool box: folded blueprint corner */
.tool{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem;position:relative;overflow:hidden}
.tool::after{content:"";position:absolute;top:0;right:0;border-width:0 18px 18px 0;border-style:solid;border-color:var(--yellow) var(--paper)}
.row{display:grid;gap:.7rem;grid-template-columns:1fr}
.f{display:flex;flex-direction:column;gap:.25rem}
label{font-size:.8rem;font-weight:600;color:var(--ink2)}
input,select,textarea{font:inherit;font-size:1rem;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:.55rem .6rem;width:100%}
textarea{min-height:8.5rem;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92rem}
input[type=color]{padding:.2rem;height:2.6rem}
input[type=range]{padding:0;border:0;background:none}
input[type=checkbox],input[type=radio]{width:auto;display:inline-block;margin-right:.35rem}
.chk{display:flex;flex-wrap:wrap;gap:.6rem;font-size:.9rem}
.chk label{font-weight:400;color:var(--ink)}
.btns{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.8rem}
button{font:inherit;font-weight:600;cursor:pointer;border-radius:9px;padding:.6rem 1rem;border:1px solid var(--blue);background:var(--blue);color:#fff}
button:hover{background:#22486b}
button.alt{background:transparent;color:var(--ink);border-color:var(--line)}
button.alt:hover{background:var(--code)}
.out{margin-top:.9rem;background:var(--code);border:1px dashed var(--line);border-radius:10px;padding:.75rem .85rem;min-height:3rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.95rem;white-space:pre-wrap;word-break:break-word}
.out .big{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;font-family:inherit;display:block}
.out .lbl{font-family:ui-sans-serif,system-ui,sans-serif;font-size:.8rem;color:var(--ink2)}
.err{color:#b3261e;font-weight:600}
@media (prefers-color-scheme:dark){.err{color:#ff9a90}}
table.t{width:100%;border-collapse:collapse;font-size:.9rem;margin:.6rem 0}
table.t th,table.t td{border:1px solid var(--line);padding:.35rem .5rem;text-align:left}
canvas{max-width:100%}
mark{background:var(--yellow);color:#17334f}
/* tool grid */
.filter{margin:1rem 0 .4rem}
.grid{list-style:none;padding:0;margin:.5rem 0 0;display:grid;gap:.6rem;grid-template-columns:1fr}
.grid a{display:block;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--yellow);border-radius:10px;padding:.6rem .75rem;text-decoration:none;color:var(--ink)}
.grid a:hover{border-color:var(--blue2);border-left-color:var(--blue2)}
.grid b{display:block;font-size:.98rem}
.grid span{display:block;font-size:.82rem;color:var(--ink2)}
.rel{display:grid;gap:.4rem;grid-template-columns:1fr;list-style:none;padding:0}
.rel a{display:block;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:.5rem .7rem;text-decoration:none;font-size:.92rem}
.adslot{margin:1.6rem 0;min-height:1px}
footer{border-top:1px solid var(--line);background:var(--card);margin-top:2rem}
.foot{max-width:64rem;margin:0 auto;padding:1.4rem .9rem 2rem;font-size:.88rem;color:var(--ink2)}
.foot nav{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:.6rem}
@media (min-width:640px){.grid{grid-template-columns:1fr 1fr}.rel{grid-template-columns:1fr 1fr}.row.two{grid-template-columns:1fr 1fr}.menu ul{grid-template-columns:1fr 1fr}h1{font-size:1.9rem}.hero h1{font-size:2.2rem}}
@media (min-width:900px){.grid{grid-template-columns:repeat(3,1fr)}.menu ul{grid-template-columns:repeat(3,1fr)}.row.three{grid-template-columns:repeat(3,1fr)}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}