:root{--bg: #0a0a0a;--bg-card: #1a1a1a;--bg-input: #2a2a2a;--text: #e0e0e0;--text-muted: #888;--primary: #667eea;--primary-dark: #764ba2;--success: #4ade80;--warning: #fbbf24;--danger: #ef4444;--border: #333}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;font-family:inherit;font-size:inherit}input,textarea{font-family:inherit;font-size:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:1.5rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;transition:all .2s}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.btn-secondary{background:var(--bg-input);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.input{width:100%;padding:.75rem 1rem;background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);outline:none;transition:border-color .2s}.input:focus{border-color:var(--primary)}.badge{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:600}.badge-success{background:#4ade801a;color:var(--success);border:1px solid rgba(74,222,128,.3)}.badge-warning{background:#fbbf241a;color:var(--warning);border:1px solid rgba(251,191,36,.3)}.badge-danger{background:#ef44441a;color:var(--danger);border:1px solid rgba(239,68,68,.3)}.text-muted{color:var(--text-muted)}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.font-bold{font-weight:700}.text-center{text-align:center}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.p-4{padding:1rem}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center}.auth-card{width:100%;max-width:400px;padding:2rem}.auth-title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:.5rem;background:linear-gradient(135deg,var(--primary),var(--primary-dark));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.grid{display:grid;gap:1rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media(max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.machine-card{transition:border-color .2s}.machine-card:hover{border-color:var(--primary)}.chat-container{height:calc(100vh - 4rem);display:flex;flex-direction:column}.chat-messages{flex:1;overflow-y:auto;padding:1rem}.chat-input{padding:1rem;border-top:1px solid var(--border)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-pulse{animation:pulse 2s infinite}.toast{position:fixed;bottom:1rem;right:1rem;padding:1rem;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;z-index:1000}