:root{--bg:#f1f5f9;--card:#fff;--fg:#0f172a;--mut:#64748b;--line:#e2e8f0;--acc:#16a34a;--acc2:#22c55e;--warn:#f59e0b;--bad:#ef4444;--bar:#cbd5e1;--done:#0ea5e9}
@media (prefers-color-scheme:dark){:root{--bg:#0b1120;--card:#111a2e;--fg:#e2e8f0;--mut:#8b9bb4;--line:#1e293b;--bar:#334155}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
main{max-width:720px;margin:0 auto;padding:12px 12px calc(24px + env(safe-area-inset-bottom))}
.top{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top));background:#0f172a;color:#fff}
.brand{font-weight:700;font-size:18px}.conn{font-size:13px;display:flex;gap:6px;align-items:center;opacity:.9}
.dot{width:9px;height:9px;border-radius:50%;background:#64748b}.conn.ok .dot{background:var(--acc2)}.conn.stale .dot{background:var(--warn)}.conn.off .dot{background:var(--bad)}
.card{background:var(--card);border-radius:18px;padding:16px;margin:12px 0;box-shadow:0 1px 3px rgba(0,0,0,.06)}
h1{margin:.2em 0}h2{font-size:16px;margin:0 0 10px}
.row{display:flex;gap:8px;align-items:center}.between{justify-content:space-between}
.muted{color:var(--mut);font-size:13px}
.grid4{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat .lbl{font-size:13px;color:var(--mut)}.stat .val{font-size:34px;font-weight:700;letter-spacing:-.5px}.stat .val small{font-size:14px;font-weight:500;color:var(--mut);margin-left:3px}
.stat .val.sm{font-size:22px;padding-top:8px}.stat .sub{font-size:12px;color:var(--mut)}
.stat.big .val{font-size:44px}
.bar{position:relative;height:8px;border-radius:4px;background:var(--bar);margin:4px 0}.bar i{position:absolute;left:0;top:0;bottom:0;border-radius:4px;background:var(--acc2);width:0}
.bar b{position:absolute;top:-3px;width:2px;height:14px;background:var(--fg);display:none}
.hero.charging .bar i{background:linear-gradient(90deg,var(--acc),var(--acc2),var(--acc));background-size:200% 100%;animation:fl 2s linear infinite}
@keyframes fl{to{background-position:-200% 0}}
.nodata{text-align:center;padding:30px 8px;font-size:18px;color:var(--mut)}
.reason{margin-top:12px;padding:10px 12px;border-radius:12px;background:var(--bg);font-size:14px}.reason:empty{display:none}
.plantxt{font-size:14px;margin-bottom:8px}
.legend{font-size:12px;color:var(--mut);display:flex;gap:6px;align-items:center}.lg{display:inline-block;width:10px;height:10px;border-radius:2px}.lg.plan{background:var(--acc2)}.lg.done{background:var(--done);margin-left:6px}
.chart{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.chart svg{display:block}
.chart .b{fill:var(--bar)}.chart .b.p{fill:var(--acc2)}.chart .b.d{fill:var(--done)}.chart .b.sel{opacity:.6}
.chart text{fill:var(--mut);font-size:10px}.chart .now{stroke:var(--bad);stroke-width:1.5}.chart .nowt{fill:var(--bad);font-weight:700}.chart .grid{stroke:var(--line)}
.tip{min-height:20px;font-size:13px;color:var(--mut);margin-top:6px}
.btn{appearance:none;border:0;border-radius:14px;padding:12px 16px;font:inherit;font-weight:600;cursor:pointer;background:var(--bg);color:var(--fg)}
.btn.primary,.btn.big{background:var(--acc);color:#fff;width:100%}.btn.big{font-size:18px;padding:16px;margin-bottom:6px}.btn.big.on{background:var(--bad)}
.ctl{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 0;border-top:1px solid var(--line)}
.step{display:flex;align-items:center;gap:4px}.step button{width:40px;height:40px;border-radius:12px;border:0;background:var(--bg);color:var(--fg);font-size:22px;cursor:pointer}
.step output{min-width:52px;text-align:center;font-weight:700;font-size:18px}
.sw{position:relative;width:54px;height:32px;flex:none}.sw input{opacity:0;width:0;height:0}.sw span{position:absolute;inset:0;border-radius:16px;background:var(--bar);transition:.2s}
.sw span:before{content:"";position:absolute;width:26px;height:26px;left:3px;top:3px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 2px rgba(0,0,0,.3)}
.sw input:checked+span{background:var(--acc)}.sw input:checked+span:before{transform:translateX(22px)}
.adv summary{cursor:pointer;color:var(--mut);font-size:14px;padding:8px 0}
.totals{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:8px}.totals div{background:var(--bg);border-radius:12px;padding:10px}.totals b{font-size:20px;display:block}
.sessions .s{display:flex;justify-content:space-between;padding:10px 0;border-top:1px solid var(--line);font-size:14px}.sessions .s .r{text-align:right}
footer{text-align:center;padding:10px}footer a{color:var(--mut)}
.login{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:16px}
.loginbox{width:100%;max-width:360px;text-align:center}.loginbox label{display:block;text-align:left;font-size:13px;color:var(--mut);margin:10px 0}
.loginbox input{display:block;width:100%;margin-top:4px;padding:12px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--fg);font-size:16px}
.logo{font-size:40px}.err{color:var(--bad)}
@media (min-width:640px){.grid4{grid-template-columns:repeat(4,1fr)}}
.hero.empty .stat:not(:last-child){display:none}.hero.empty .grid4{grid-template-columns:1fr;text-align:center}