:root{--bg:#0f1720;--surface:#17212b;--surface-2:#1e2c3a;--border:#26384a;--text:#e6edf3;--text-dim:#8ba0b3;--primary:#2f9bff;--primary-dim:#1d5f9e;--danger:#ff5a5a;--success:#33c26b;--radius:14px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Segoe UI,system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif}a{color:var(--primary);text-decoration:none}button{font:inherit;cursor:pointer}.app{flex-direction:column;max-width:640px;min-height:100%;margin:0 auto;display:flex}.header{padding:14px 16px;padding-top:calc(14px + env(safe-area-inset-top));background:var(--surface);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:12px;display:flex;position:sticky;top:0}.header h1{flex:1;margin:0;font-size:1.1rem}.header .back{color:var(--text);background:0 0;border:none;padding:0 4px;font-size:1.4rem;line-height:1}.icon-btn{background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:6px 10px;font-size:.85rem}.content{padding:16px;padding-bottom:calc(16px + env(safe-area-inset-bottom));flex-direction:column;flex:1;gap:14px;display:flex}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.device-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-align:left;width:100%;color:var(--text);align-items:center;gap:14px;padding:16px;transition:background .15s;display:flex}.device-card:hover{background:var(--surface-2)}.device-card .emoji{font-size:1.8rem}.device-card .meta{flex:1;min-width:0}.device-card .name{font-size:1.05rem;font-weight:600}.device-card .sub{color:var(--text-dim);font-size:.85rem}.device-card .chevron{color:var(--text-dim)}.btn{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px 16px;font-weight:600}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.danger{border-color:var(--danger);color:var(--danger);background:0 0}.btn.block{width:100%}.btn:disabled{opacity:.5;cursor:default}input,select{font:inherit;background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:12px;width:100%;padding:12px}label{color:var(--text-dim);margin-bottom:6px;font-size:.85rem;display:block}.field{margin-bottom:14px}.temp-display{text-align:center;padding:8px 0 4px}.temp-display .value{font-size:3.4rem;font-weight:700;line-height:1}.temp-display .unit{color:var(--text-dim);font-size:1.4rem}.stepper{justify-content:center;align-items:center;gap:18px;margin:12px 0;display:flex}.stepper button{border:1px solid var(--border);background:var(--surface-2);width:56px;height:56px;color:var(--text);border-radius:50%;font-size:1.6rem}.seg{gap:8px;display:flex}.seg button{border:1px solid var(--border);background:var(--surface-2);color:var(--text-dim);border-radius:10px;flex:1;padding:10px}.seg button.active{background:var(--primary-dim);color:#fff;border-color:var(--primary)}.row{justify-content:space-between;align-items:center;gap:12px;display:flex}.power-row{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.reading{gap:12px;display:flex}.reading .card{text-align:center;flex:1}.reading .big{font-size:2rem;font-weight:700}.muted{color:var(--text-dim);font-size:.85rem}.center{text-align:center;place-items:center;gap:16px;min-height:60vh;padding:24px;display:grid}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:34px;height:34px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.brand{font-size:2rem;font-weight:700}.switch{flex:none;width:52px;height:30px;position:relative}.switch input{display:none}.switch span{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;transition:all .2s;position:absolute;inset:0}.switch span:before{content:"";background:var(--text-dim);border-radius:50%;width:22px;height:22px;transition:all .2s;position:absolute;top:3px;left:3px}.switch input:checked+span{background:var(--primary-dim);border-color:var(--primary)}.switch input:checked+span:before{background:#fff;transform:translate(22px)}.alarm-item{flex-direction:column;gap:10px;display:flex}.days{flex-wrap:wrap;gap:6px;display:flex}.day{border:1px solid var(--border);background:var(--surface-2);width:36px;height:36px;color:var(--text-dim);border-radius:50%;font-size:.8rem}.day.on{background:var(--primary-dim);color:#fff;border-color:var(--primary)}.toast{bottom:calc(20px + env(safe-area-inset-bottom));background:var(--surface-2);border:1px solid var(--border);z-index:50;border-radius:12px;padding:10px 18px;position:fixed;left:50%;transform:translate(-50%)}