:root{--bg: #ffffff;--surface: #f6f7f9;--fg: #0f1724;--muted: #6b7280;--accent: #2563eb;--accent-contrast: #ffffff;--border: #e6e8eb;--card-radius: 12px;--shadow: 0 6px 18px rgba(12,15,20,.06);--transition-fast: .16s}@media(prefers-color-scheme:dark){:root:not([data-theme]):not(.theme-light):not(.theme-dark){--bg: #07080a;--surface: #0b0f14;--fg: #e6eef8;--muted: #9aa6b2;--accent: #4f9cff;--accent-contrast: #071426;--border: #12202b;--shadow: 0 8px 24px rgba(0,0,0,.6)}}html.theme-light{--bg: #ffffff;--surface: #f6f7f9;--fg: #0f1724;--muted: #6b7280;--accent: #2563eb;--accent-contrast: #ffffff;--border: #e6e8eb;--shadow: 0 6px 18px rgba(12,15,20,.06)}html.theme-dark{--bg: #0b0f14;--surface: #0f1724;--fg: #e6eef8;--muted: #9aa6b2;--accent: #4f9cff;--accent-contrast: #071426;--border: #12202b;--shadow: 0 10px 30px rgba(0,0,0,.6)}html.theme-cool{--bg: #0b1220;--surface: #0f1724;--fg: #e9f6ff;--muted: #9fb7c9;--accent: #00c2a8;--accent-contrast: #042022;--border: rgba(255,255,255,.04);--shadow: 0 8px 26px rgba(3,6,12,.6)}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-fast),color var(--transition-fast);line-height:1.4}a{color:inherit;text-decoration:none}button{font:inherit}.container{max-width:1100px;margin:0 auto;padding:1rem}.card{background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--surface) 92%,var(--bg) 8%));border:1px solid var(--border);border-radius:var(--card-radius);box-shadow:var(--shadow);padding:1rem;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.btn{display:inline-flex;gap:.5rem;align-items:center;padding:.5rem .75rem;border-radius:8px;border:none;cursor:pointer;background:var(--accent);color:var(--accent-contrast);box-shadow:0 6px 12px #00000014;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease}.btn:active{transform:translateY(1px)}.btn.secondary{background:transparent;color:var(--fg);border:1px solid var(--border);box-shadow:none}.muted{color:var(--muted)}.text-inverted{color:var(--bg);background:var(--fg);padding:.125rem .375rem;border-radius:6px;display:inline-block}.invert-all{filter:invert(1) hue-rotate(180deg)}:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 30%,transparent);outline-offset:2px}.row{display:flex;gap:1rem;align-items:center}.col{display:flex;flex-direction:column;gap:.5rem}.thermostat{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem;width:200px;box-shadow:var(--shadow);transition:background-color .2s ease,border-color .2s ease;display:flex;flex-direction:column;min-width:100px;align-items:center;gap:.75rem}.thermostat-header{display:flex;justify-content:space-between;width:100%;color:var(--fg)}.thermostat .temp{font-size:1.2rem;font-weight:600}.thermostat button.toggle{border:none;border-radius:8px;padding:.5rem 1rem;font-size:.9rem;cursor:pointer;color:var(--accent-contrast);background:var(--accent);transition:background .15s ease,transform .15s ease}.thermostat button.toggle:active{transform:translateY(1px)}.thermostat.off button.toggle{background:var(--muted);color:var(--bg)}.thermostat.on{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 40%,transparent)}.thermostat.off{opacity:.8}.thermostat.disabled{opacity:.6;pointer-events:none}.thermostat.disabled .toggle{background:var(--muted);color:var(--bg);cursor:not-allowed}.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;padding:1rem}.loading,.error{text-align:center;font-size:1.2rem;color:var(--muted);padding:2rem}.dashboard-layout{padding:1.5rem;height:100vh}.controls{height:200px;overflow-x:auto;display:flex;left:50px;right:50px;bottom:40px;position:fixed;flex-direction:row}.controls,.readings{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem}.controls h2,.readings h2{margin-bottom:1rem;color:var(--fg)}.thermostat{min-width:100px;margin:10px}.thermostats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;margin-bottom:1.5rem}.readings ul{list-style:none;padding:0;margin:0;color:var(--fg)}.readings li{margin-bottom:.5rem}