@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-card:#1e293b;--bg-card-hover:#2a3a52;--bg-input:#334155;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#3b82f6;--accent-hover:#2563eb;--accent-glow:rgba(59,130,246,.3);--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--border:#334155;--sidebar-width:260px;--header-height:64px;--radius:12px;--shadow:0 4px 6px -1px rgba(0,0,0,.3),0 2px 4px -2px rgba(0,0,0,.2);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.4),0 4px 6px -4px rgba(0,0,0,.3);--gradient-accent:linear-gradient(135deg,#3b82f6,#8b5cf6);--gradient-card:linear-gradient(135deg,rgba(59,130,246,.1),rgba(139,92,246,.05))}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1a1a3e 50%,#0f172a);position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;width:600px;height:600px;background:radial-gradient(circle,var(--accent-glow),transparent 70%);top:-200px;right:-200px;animation:float 8s ease-in-out infinite}.login-page:after{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(139,92,246,.15),transparent 70%);bottom:-100px;left:-100px;animation:float 10s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(30px,-30px) scale(1.1)}}.login-card{background:rgba(30,41,59,.8);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:20px;padding:48px;width:100%;max-width:420px;position:relative;z-index:1;box-shadow:var(--shadow-lg)}.login-card h1{font-size:28px;font-weight:800;text-align:center;margin-bottom:8px;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.login-card p{text-align:center;color:var(--text-secondary);margin-bottom:32px;font-size:14px}.login-logo{text-align:center;margin-bottom:24px;font-size:40px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;font-family:inherit;transition:all .2s;outline:none}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.form-group input::placeholder{color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:var(--radius);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background:var(--gradient-accent);color:#fff;box-shadow:0 4px 14px var(--accent-glow)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--accent-glow)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-card-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#fff}.btn-full{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s}.sidebar-header{padding:20px 24px;border-bottom:1px solid var(--border)}.sidebar-header h2{font-size:18px;font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sidebar-header span{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}.sidebar-nav{flex:1 1;padding:16px 12px;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 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var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 32px;position:-webkit-sticky;position:sticky;top:0;z-index:50}.header h1{font-size:20px;font-weight:700}.page-content{padding:32px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:20px;gap:20px;margin-bottom:32px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative;overflow:hidden;transition:all .3s}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-accent)}.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.stat-card .stat-icon{width:44px;height:44px;border-radius:10px;background:rgba(59,130,246,.15);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent)}.stat-card .stat-value{font-size:32px;font-weight:800;line-height:1;margin-bottom:4px}.stat-card .stat-label{font-size:13px;color:var(--text-secondary)}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));grid-gap:24px;gap:24px;margin-bottom:32px}.chart-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.chart-card h3{font-size:16px;font-weight:600;margin-bottom:20px;color:var(--text-primary)}.table-container{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.table-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}.table-header h3{font-size:16px;font-weight:600}table{width:100%;border-collapse:collapse}th{text-align:left;padding:12px 24px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);background:rgba(0,0,0,.2)}td,th{border-bottom:1px solid var(--border)}td{padding:14px 24px;font-size:14px}tr:hover td{background:var(--bg-card-hover)}.badge{display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600;text-transform:uppercase}.badge-success{background:rgba(16,185,129,.15);color:var(--success)}.badge-warning{background:rgba(245,158,11,.15);color:var(--warning)}.badge-danger{background:rgba(239,68,68,.15);color:var(--danger)}.badge-info{background:rgba(59,130,246,.15);color:var(--accent)}.chat-container{display:flex;flex-direction:column;height:calc(100vh - var(--header-height) - 64px);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}.chat-messages{flex:1 1;overflow-y:auto;padding:24px}.chat-message{margin-bottom:20px;display:flex;gap:12px}.chat-message.user{flex-direction:row-reverse}.chat-message .msg-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}.chat-message.user .msg-avatar{background:var(--gradient-accent);color:#fff}.chat-message.assistant .msg-avatar{background:rgba(16,185,129,.2);color:var(--success)}.chat-message .msg-bubble{max-width:70%;padding:14px 18px;border-radius:16px;font-size:14px;line-height:1.6}.chat-message.user .msg-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.chat-message.assistant .msg-bubble{background:var(--bg-input);color:var(--text-primary);border-bottom-left-radius:4px}.chat-input-area{padding:16px 24px;border-top:1px solid var(--border);display:flex;gap:12px}.chat-input-area input{flex:1 1;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;font-family:inherit;outline:none}.chat-input-area input:focus{border-color:var(--accent)}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:48px;text-align:center;cursor:pointer;transition:all .3s}.upload-zone:hover{border-color:var(--accent);background:rgba(59,130,246,.05)}.upload-zone svg{width:48px;height:48px;color:var(--text-muted);margin-bottom:16px}.upload-zone h3{font-size:16px;margin-bottom:8px}.upload-zone p{font-size:13px;color:var(--text-muted)}.alert{padding:14px 18px;border-radius:var(--radius);margin-bottom:16px;font-size:14px}.alert-error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:var(--danger)}.alert-success{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.3);color:var(--success)}@media (max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0}.stats-grid{grid-template-columns:repeat(2,1fr)}.charts-grid{grid-template-columns:1fr}.page-content{padding:16px}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeIn .4s ease-out}@keyframes 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