:root{--bg:#0a1016;--panel:#111a23;--panel-2:#16222e;--line:#22313f;--text:#e8f1f8;--muted:#8ea2b4;--cool:#38bdf8;--cool-2:#818cf8;--ok:#34d399;--warn:#fbbf24;--bad:#f87171;--radius:18px;color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:16px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-tap-highlight-color:transparent}
body{min-height:100dvh;background:radial-gradient(1200px 600px at 50% -200px,#12324a 0,transparent 70%),var(--bg)}
.sprite{display:none}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
button{font:inherit;color:inherit;cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.45}
[hidden]{display:none!important}
.subtle{color:var(--muted);margin:.2rem 0 0;font-size:.92rem}

.top{display:flex;align-items:center;justify-content:space-between;padding:calc(env(safe-area-inset-top) + 14px) 18px 6px;max-width:560px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;letter-spacing:.01em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--cool),var(--cool-2));color:#04111c}
.brand-mark svg{stroke-width:2.1}
.brand-name span{color:var(--muted);font-weight:500}
.icon-button{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--panel)}

.main{max-width:560px;margin:0 auto;padding:6px 16px calc(env(safe-area-inset-bottom) + 28px)}
.picker{display:flex;gap:8px;overflow-x:auto;padding:8px 2px 12px;scrollbar-width:none}
.picker::-webkit-scrollbar{display:none}
.picker button{display:flex;align-items:center;gap:8px;white-space:nowrap;padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:var(--panel);font-size:.92rem}
.picker button[aria-current="true"]{border-color:var(--cool);background:#0f2a3d}

.unit{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:26px;padding:20px 18px 18px;box-shadow:0 20px 60px #0007}
.unit-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.unit-head h1{margin:0;font-size:1.3rem;font-weight:650}
.chip{display:flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;border:1px solid var(--line);background:#0c151d;font-size:.82rem;color:var(--muted);flex:none}
.chip svg{width:15px;height:15px}
.chip.loading svg{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.dot.on{background:var(--ok);box-shadow:0 0 0 4px #34d39922}
.dot.off{background:var(--bad);box-shadow:0 0 0 4px #f8717122}

.offline{display:flex;gap:12px;margin-top:16px;padding:13px 14px;border-radius:14px;background:#2a1414;border:1px solid #5b2626;color:#fecaca;font-size:.92rem}
.offline svg{color:var(--bad);margin-top:2px}
.offline p{margin:.15rem 0 0;color:#f3b4b4}

.dial-wrap{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:6px;margin:18px 0 8px}
.dial{position:relative;width:100%;max-width:290px;aspect-ratio:1;margin:0 auto}
.dial>svg{width:100%;height:100%}
.dial .track{stroke:#1d2b38;stroke-width:12}
.dial .arc{stroke:var(--cool);stroke-width:12;stroke-dasharray:0 100;transition:stroke-dasharray .35s ease,stroke .35s}
.unit.off .dial .arc{stroke:#3b4b5a}
.dial-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.dial-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}
.dial-value{font-size:clamp(3.4rem,17vw,4.6rem);font-weight:300;line-height:1;font-variant-numeric:tabular-nums;margin:6px 0 4px}
.dial-value sup{font-size:.32em;font-weight:500;color:var(--muted);vertical-align:top;margin-left:2px}
.unit.off .dial-value{color:#9fb0bf}
.dial-note{font-size:.85rem;color:var(--muted);min-height:1.3em}
.dial-note.pending{color:var(--warn)}
.step{display:grid;place-items:center;width:58px;height:58px;border-radius:50%;border:1px solid var(--line);background:#0e1922;transition:transform .1s,background .2s}
.step svg{width:24px;height:24px;stroke-width:2.2}
.step:not(:disabled):active{transform:scale(.93);background:#13283a}

.power{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px;border-radius:16px;border:0;font-weight:650;font-size:1.05rem;background:linear-gradient(135deg,var(--cool),var(--cool-2));color:#04111c;margin-top:6px;transition:filter .2s}
.power svg{stroke-width:2.3}
.power.is-on{background:#1b2732;color:var(--text);border:1px solid var(--line)}
.power:not(:disabled):active{filter:brightness(.92)}

.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 0}
.tile{background:#0d171f;border:1px solid var(--line);border-radius:14px;padding:11px 13px}
.tile dt{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.8rem}
.tile dt svg{width:16px;height:16px}
.tile dd{margin:4px 0 0;font-size:1.15rem;font-weight:600;font-variant-numeric:tabular-nums}
.footnote{color:#6c8194;font-size:.78rem;margin:14px 2px 0}

.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom) + 22px);transform:translateX(-50%);max-width:min(92vw,460px);padding:12px 16px;border-radius:14px;background:#1d2a36;border:1px solid var(--line);box-shadow:0 10px 30px #0009;font-size:.92rem;z-index:30}
.toast.error{background:#3a1717;border-color:#6b2a2a}

.sheet-backdrop{position:fixed;inset:0;background:#000a;z-index:40}
.sheet{position:fixed;z-index:41;right:0;top:0;bottom:0;width:min(100%,420px);overflow-y:auto;background:var(--panel);border-left:1px solid var(--line);padding:calc(env(safe-area-inset-top) + 16px) 18px calc(env(safe-area-inset-bottom) + 24px)}
.sheet-head{display:flex;justify-content:space-between;align-items:center}
.sheet h2{margin:0;font-size:1.2rem}
.sheet h3{margin:.4rem 0 0;font-size:1rem}
.panel{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-top:14px;background:#0d171f}
.panel summary{cursor:pointer;font-weight:600}
.form{display:grid;gap:12px;margin-top:12px}
.field{display:grid;gap:6px;font-size:.88rem;color:var(--muted)}
.field input,.users select{font:inherit;color:var(--text);background:#0a1218;border:1px solid var(--line);border-radius:11px;padding:11px 12px;width:100%}
.field input:focus{outline:2px solid var(--cool);outline-offset:1px}
.check{display:flex;gap:9px;align-items:center;font-size:.88rem;color:var(--muted)}
.primary{padding:12px 16px;border-radius:12px;border:0;background:var(--cool);color:#04111c;font-weight:650}
.ghost{width:100%;margin-top:18px;padding:12px;border-radius:12px;border:1px solid var(--line);background:transparent}
.form-error{margin:0;color:var(--bad);font-size:.88rem}
.form-error.ok{color:var(--ok)}
.users{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:8px}
.users li{display:grid;gap:8px;padding:10px 12px;border:1px solid var(--line);border-radius:12px}
.users .who strong{display:block}
.users .who span{color:var(--muted);font-size:.85rem}
.users .actions{display:flex;flex-wrap:wrap;gap:6px}
.users .actions button{padding:7px 10px;border-radius:9px;border:1px solid var(--line);background:#101c26;font-size:.82rem}
.users .actions .danger{color:var(--bad)}

/* Login */
.login{min-height:100dvh;display:grid;place-items:center;padding:24px}
.login-card{width:min(100%,380px);background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:26px 22px}
.login-card h1{margin:22px 0 0;font-size:1.4rem}
.password-wrap{position:relative;display:block}
.password-wrap input{padding-right:46px}
.reveal{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--muted);padding:6px}
.offline-page{min-height:100dvh;display:grid;place-items:center;text-align:center;padding:24px}

@media (min-width:720px){.main{padding-top:14px}.unit{padding:26px 26px 22px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.link-button{display:block;text-align:center;text-decoration:none}