:root{color-scheme:light;--bg:#f6f7f9;--card:#fff;--fg:#0f172a;--mut:#64748b;--line:#e2e8f0;--pri:#2B7EC1;--onpri:#fff;--err:#b91c1c}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1220;--card:#131c2e;--fg:#e8edf5;--mut:#94a3b8;--line:#243049;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b1220;--card:#131c2e;--fg:#e8edf5;--mut:#94a3b8;--line:#243049;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;padding:env(safe-area-inset-top) max(16px,env(safe-area-inset-right)) env(safe-area-inset-bottom) max(16px,env(safe-area-inset-left))}
#app{max-width:720px;margin:0 auto;padding:16px 0 90px}
h1{font-size:22px;margin:0}h2{font-size:18px;margin:0 0 12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin:12px 0}
label{display:block;font-size:13px;color:var(--mut);margin:10px 0 4px}
input,select,textarea{width:100%;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 12px}
button{font:inherit;border:0;border-radius:10px;padding:11px 16px;background:var(--pri);color:var(--onpri);font-weight:600;cursor:pointer}
button.sec{background:transparent;color:var(--fg);border:1px solid var(--line)}
button.lnk{background:none;color:var(--pri);padding:6px 0}
.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1;min-width:140px}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:10px}.dot{width:12px;height:12px;border-radius:50%;background:var(--pri)}
.mut{color:var(--mut);font-size:14px}.err{color:var(--err);font-size:14px;margin-top:8px}
.item{padding:12px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}
.item:last-child{border:0}
nav{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:8px 8px calc(8px + env(safe-area-inset-bottom))}
nav button{background:none;color:var(--mut);padding:8px 2px;font-size:11.5px;flex:1;min-width:0}nav button.on{color:var(--pri)}

.seg{display:flex;gap:6px}.seg button{flex:1;min-width:0;padding:9px 6px;font-size:14px}
.pwr{text-align:center;font-size:12px;color:var(--mut);margin:18px 0 8px}.pwr a{color:inherit;font-weight:600;text-decoration:none}.pwr a:hover{text-decoration:underline}