:root{--bg:#eef3f7;--card:#fff;--ink:#0f2233;--mute:#52667a;--line:#d6e0e9;--pri:#0b7a75;--pri-ink:#fff;--volt:#f2b705;--warn:#b42318;--warnbg:#fdecea;--ok:#0b7a4b;--soft:#e3f1f0;
--fh:"Bricolage Grotesque","Trebuchet MS",system-ui,sans-serif;--fb:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1620;--card:#13232f;--ink:#e8f0f6;--mute:#9ab0c2;--line:#25394a;--pri:#34c3bb;--pri-ink:#04201e;--warn:#ff9b8f;--warnbg:#3a1d1a;--ok:#5fdca0;--soft:#16363a;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b1620;--card:#13232f;--ink:#e8f0f6;--mute:#9ab0c2;--line:#25394a;--pri:#34c3bb;--pri-ink:#04201e;--warn:#ff9b8f;--warnbg:#3a1d1a;--ok:#5fdca0;--soft:#16363a;color-scheme:dark}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 70px);scroll-behavior:smooth}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font:400 18px/1.6 var(--fb)}
h1,h2,h3{font-family:var(--fh);line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,6vw,3.6rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3.5vw,2rem);font-weight:800}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em;max-width:68ch}a{color:var(--pri)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{font:800 1.1rem var(--fh);color:var(--ink);text-decoration:none}
nav{display:flex;gap:4px;flex-wrap:wrap}
nav a{color:var(--ink);text-decoration:none;padding:8px 12px;border-radius:999px;font-size:.95rem;font-weight:600}
nav a:hover{background:var(--soft)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid var(--volt);outline-offset:2px}
.hero{padding:44px 0 24px}
.hero p{font-size:1.2rem;color:var(--mute)}
.layout{display:grid;gap:24px;grid-template-columns:1fr;align-items:start}
@media(min-width:1000px){.layout{grid-template-columns:minmax(0,1fr) 300px}.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 80px)}}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:24px;margin-bottom:20px}
.step{font:800 1rem var(--fh);color:var(--mute);margin-bottom:12px;display:block}
.row{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:640px){.row.c3{grid-template-columns:repeat(3,1fr)}.row.c2{grid-template-columns:repeat(2,1fr)}}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:4px}
input[type=number],input[type=text],input[type=email],select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:2px solid var(--line);border-radius:14px;padding:12px 14px;min-height:48px}
input[type=range]{width:100%;accent-color:var(--pri);height:32px}
.hint{font-size:.88rem;color:var(--mute);margin-top:4px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
button,.btn{font:700 1rem var(--fb);border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:12px 20px;min-height:48px;cursor:pointer}
button:hover{border-color:var(--pri)}
.btn.pri,button.pri{background:var(--pri);border-color:var(--pri);color:var(--pri-ink)}
button[aria-pressed=true]{background:var(--soft);border-color:var(--pri)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.dev{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.dev:first-child{border-top:0}
.dev .nm{display:flex;align-items:center;gap:10px;font-weight:600;grid-column:1/-1}
.dev .nm input[type=checkbox]{width:24px;height:24px;accent-color:var(--pri)}
.dev .nm span{flex:1}
.dev .nm button{min-height:36px;padding:4px 12px}
.dev .f{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;grid-column:1/-1}
.dev .f label{font-size:.8rem;font-weight:400;color:var(--mute)}
.dev .f input{min-height:44px;padding:8px 10px}
.dev.off .f{opacity:.45}
.add{display:grid;gap:10px;grid-template-columns:1fr 1fr 1fr auto;margin-top:16px;align-items:end}
.add .nm2{grid-column:1/-1}
@media(min-width:640px){.add{grid-template-columns:2fr 1fr 1fr auto}.add .nm2{grid-column:auto}}
.res{border-color:var(--pri);border-width:2px}
.big{font:800 clamp(2.4rem,9vw,4rem)/1 var(--fh);letter-spacing:-.02em;margin:4px 0 6px}
.gauge{height:22px;border-radius:999px;background:var(--bg);border:2px solid var(--line);overflow:hidden;margin:14px 0}
.gauge i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--pri),var(--volt));transition:width .4s}
.stats{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));margin:16px 0}
.stat{background:var(--bg);border-radius:16px;padding:12px 14px}
.stat b{display:block;font:800 1.4rem var(--fh)}.stat small{color:var(--mute)}
.alert{background:var(--warnbg);color:var(--warn);border-radius:14px;padding:12px 14px;margin:10px 0;font-weight:600}
.good{background:var(--soft);color:var(--ok)}
.tips{padding-left:1.2em;margin:0}.tips li{margin-bottom:.5em;max-width:64ch}
.ad{border:2px dashed var(--line);border-radius:18px;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--mute);font-size:.85rem;padding:12px;margin-bottom:20px}
.ad.tall{min-height:600px}.ad.wide{min-height:120px}
@media(max-width:999px){.ad.tall{min-height:250px}}
details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700;padding:14px 0}
details p{margin-bottom:14px}
section.pg{padding:28px 0}
footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--mute);font-size:.92rem}
#toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom,0px) + 20px);transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:12px 20px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:30}
#toast.show{opacity:1}
@media print{header.top,.ad,.side,.tabs,button,footer,#toast{display:none!important}.card{border:1px solid #999}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.btn{display:inline-block;text-decoration:none}.btn.pri{color:var(--pri-ink)}
.prose{max-width:760px;padding:32px 0}.prose h2{margin-top:1.6em}.tbl{overflow-x:auto;margin:20px 0}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.98rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}th{font-family:var(--fh)}
.rel a{display:block;margin-bottom:8px}