:root{--bg: #111827;--surface: #1f2937;--surface-hover: #374151;--border: #374151;--text: #f9fafb;--text-muted: #9ca3af;--amber: #f59e0b;--amber-bg: #1c1805;--blue: #60a5fa;--blue-bg: #0c1a2e;--radius: 16px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}html,body,#root{height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.header-brand{display:flex;align-items:center;gap:10px}.brand-icon{font-size:26px}.brand-name{font-size:20px;font-weight:700}.header-clock{display:flex;flex-direction:column;align-items:flex-end;gap:1px}.clock-time{font-size:36px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1}.clock-date{font-size:13px;color:var(--text-muted);text-transform:capitalize}.zones-nav{display:flex;gap:8px;padding:12px 24px;overflow-x:auto;scrollbar-width:none;flex-shrink:0;background:var(--surface);border-bottom:1px solid var(--border)}.zones-nav::-webkit-scrollbar{display:none}.zone-tab{padding:10px 22px;background:transparent;border:1px solid var(--border);border-radius:24px;color:var(--text-muted);font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;min-height:44px;transition:all .15s}.zone-tab.active{background:var(--amber);border-color:var(--amber);color:#000;font-weight:700}.main{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:32px}.section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);margin-bottom:14px}.lights-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px}.light-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 14px 16px;display:flex;flex-direction:column;align-items:center;gap:10px;transition:border-color .2s,background .2s}.light-card.light-on{background:var(--amber-bg);border-color:var(--amber)}.light-btn{background:none;border:none;cursor:pointer;width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:42px;transition:transform .1s}.light-btn:active{transform:scale(.88)}.light-icon{line-height:1}.light-name{font-size:13px;font-weight:500;text-align:center;line-height:1.3;color:var(--text)}.dim-slider{width:100%;accent-color:var(--amber);cursor:pointer;height:20px}.thermostats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.thermostat-card{background:var(--surface);border:1px solid var(--blue);border-radius:var(--radius);padding:22px 24px;display:flex;flex-direction:column;gap:18px;background:var(--blue-bg)}.thermostat-name{font-size:15px;font-weight:600}.thermostat-body{display:flex;align-items:center;justify-content:space-between;gap:16px}.thermostat-measured{display:flex;flex-direction:column;gap:4px}.measured-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.measured-value{font-size:44px;font-weight:300;color:var(--blue);line-height:1;font-variant-numeric:tabular-nums}.thermostat-control{display:flex;align-items:center;gap:10px}.temp-btn{width:56px;height:56px;border-radius:50%;background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:26px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.temp-btn:active{background:var(--surface-hover)}.temp-target{font-size:34px;font-weight:700;min-width:90px;text-align:center;font-variant-numeric:tabular-nums}.fullscreen-msg{display:flex;align-items:center;justify-content:center;flex:1;font-size:18px;color:var(--text-muted)}.fullscreen-msg.error{color:#ef4444}