:root{--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-2: #64748b;--radius: 10px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;gap:1rem;padding:0 1.5rem;height:52px;background:var(--surface);border-bottom:.5px solid var(--border);position:sticky;top:0;z-index:10}.header-brand{display:flex;align-items:center;gap:8px;cursor:pointer}.brand-icon{font-size:18px}.brand-name{font-size:14px;font-weight:600;color:var(--text)}.header-nav{flex:1;display:flex;gap:4px}.nav-btn{padding:4px 14px;border-radius:6px;border:none;background:transparent;color:var(--text-2);cursor:pointer;font-size:13px;transition:background .15s}.nav-btn:hover,.nav-btn.active{background:#f1f5f9;color:var(--text)}.live-dot{display:flex;align-items:center;gap:5px;font-size:12px;color:#22c55e}.pulse-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;animation:blink 1.2s ease-in-out infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.main-content{padding:1.25rem 1.5rem;max-width:1100px;margin:0 auto;width:100%}.section-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-2);margin-bottom:.75rem}.chart-card{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:1rem}.card-label{font-size:11px;font-weight:600;color:var(--text-2);margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.03em}.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.metric-card{background:#f8fafc;border-radius:8px;padding:12px 14px;border:.5px solid var(--border)}.metric-label{font-size:11px;color:var(--text-2);margin-bottom:4px}.metric-value{font-size:24px;font-weight:600;line-height:1}.metric-unit{font-size:11px;color:var(--text-2);margin-top:3px}.machines-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.machine-card{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:12px 14px;cursor:pointer;transition:box-shadow .15s,border-color .15s}.machine-card:hover{border-color:#93c5fd;box-shadow:0 0 0 3px #3b82f614}.mc-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.mc-name{font-size:14px;font-weight:600}.mc-badge{font-size:10px;font-weight:500;padding:2px 7px;border-radius:10px}.mc-desc{font-size:12px;color:var(--text-2);margin-bottom:8px}.mc-link{font-size:12px;color:#3b82f6}.ai-banner{margin-top:1rem;padding:12px 16px;background:#fefce8;border:.5px solid #fde047;border-radius:var(--radius);display:flex;gap:10px;font-size:13px;color:#713f12}.ai-icon{font-size:18px;flex-shrink:0}.back-btn{background:transparent;border:none;color:var(--text-2);font-size:13px;cursor:pointer;padding:0;margin-bottom:1rem}.back-btn:hover{color:var(--text)}.machine-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.25rem}.machine-title{font-size:20px;font-weight:700}.machine-desc{font-size:13px;color:var(--text-2)}.status-pill{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.pred-list{display:flex;flex-direction:column;gap:6px}.pred-row{background:var(--surface);border:.5px solid var(--border);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:6px}.pred-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.pred-badge{font-size:11px;font-weight:600;padding:2px 8px;border-radius:10px}.pred-rec{font-size:12px;color:var(--text-2);flex:1}.pred-bar-wrap{height:4px;background:#f1f5f9;border-radius:2px;overflow:hidden}.pred-bar{height:100%;border-radius:2px;transition:width .3s}.pred-time{font-size:11px;color:var(--text-2);text-align:right}.legend-row{display:flex;gap:16px;padding-top:8px;flex-wrap:wrap}.legend-item{font-size:11px;color:var(--text-2);display:flex;align-items:center}.loading{padding:2rem;text-align:center;color:var(--text-2)}.empty{padding:1rem;color:var(--text-2);font-size:13px}.dashboard,.machine-page{width:100%}@media (max-width: 640px){.metrics-grid{grid-template-columns:repeat(2,1fr)}.detail-grid{grid-template-columns:1fr}}