:root{--font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;--bg-color: #f8fafc;--bg-gradient: radial-gradient(circle at top right, #f8fafc 0%, #f1f5f9 100%);--sidebar-bg: #0f172a;--sidebar-text: #94a3b8;--sidebar-text-active: #22d3ee;--sidebar-item-active: rgba(34, 211, 238, .1);--text-primary: #0f172a;--text-secondary: #475569;--card-bg: #ffffff;--card-border: #e2e8f0;--card-shadow: 0 10px 25px -5px rgba(0, 0, 0, .05), 0 8px 10px -6px rgba(0, 0, 0, .05);--input-bg: #ffffff;--input-border: #cbd5e1;--border-color: rgba(15, 23, 42, .08);--accent-color: #06b6d4;--accent-gradient: linear-gradient(135deg, #22d3ee 0%, #2563eb 100%);--accent-soft: rgba(34, 211, 238, .1);--success-color: #10b981;--sidebar-bottom-bg: rgba(255, 255, 255, .03);--glass-bg: rgba(255, 255, 255, .6);--glass-border: rgba(15, 23, 42, .08);--scrollbar-thumb: rgba(15, 23, 42, .15);--scrollbar-thumb-hover: rgba(15, 23, 42, .25)}[data-theme=dark]{--bg-color: #020617;--bg-gradient: radial-gradient(circle at top left, #0f172a 0%, #020617 100%);--sidebar-bg: #020617;--sidebar-text: #94a3b8;--sidebar-text-active: #22d3ee;--sidebar-item-active: rgba(34, 211, 238, .2);--text-primary: #ffffff;--text-secondary: #cbd5e1;--card-bg: rgba(15, 23, 42, .85);--card-border: rgba(34, 211, 238, .25);--card-shadow: 0 0 20px rgba(0, 0, 0, .6), 0 0 1px rgba(34, 211, 238, .2);--input-bg: rgba(15, 23, 42, .8);--input-border: rgba(34, 211, 238, .3);--border-color: rgba(255, 255, 255, .1);--sidebar-bottom-bg: rgba(0, 0, 0, .2);--glass-bg: rgba(15, 23, 42, .8);--glass-border: rgba(255, 255, 255, .1);--scrollbar-thumb: rgba(255, 255, 255, .1);--scrollbar-thumb-hover: rgba(255, 255, 255, .2)}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;font-family:var(--font-family);line-height:1.5;font-weight:400;color:var(--text-primary);background:var(--bg-gradient);background-attachment:fixed;transition:background .3s ease,color .3s ease;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;min-width:320px;min-height:100vh}#root{width:100%}*{box-sizing:border-box}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:10px;border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover);background-clip:content-box}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent}.premium-gradient{background:linear-gradient(135deg,#22d3ee,#2563eb);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 8px rgba(34,211,238,.3))}.glass-card{background:var(--card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid 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rgba(255,255,255,.1)}.auth-container{min-height:100vh;width:100%;display:flex;align-items:center;justify-content:center;background:var(--bg-gradient);position:relative;overflow:hidden}.auth-container:before{content:"";position:absolute;width:200%;height:200%;background-image:radial-gradient(circle at 50% 50%,rgba(34,211,238,.05) 0%,transparent 50%),linear-gradient(rgba(34,211,238,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.02) 1px,transparent 1px);background-size:100% 100%,40px 40px,40px 40px;top:-50%;left:-50%;animation:bg-drift 100s linear infinite;pointer-events:none}@keyframes bg-drift{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.auth-card{background:var(--card-bg)!important;-webkit-backdrop-filter:blur(20px)!important;backdrop-filter:blur(20px)!important;border:1px solid var(--card-border)!important;box-shadow:var(--card-shadow)!important;color:var(--text-primary)!important}.auth-card .input-field{background:var(--input-bg)!important;border:1px solid var(--input-border)!important;color:var(--text-primary)!important}.auth-card .input-field::placeholder{color:var(--text-secondary);opacity:.5}.auth-card label{color:var(--text-secondary)!important}.dashboard-page{padding:40px;min-height:100vh;background:var(--bg-gradient);background-attachment:fixed}.dataset-card{background:var(--card-bg)!important;-webkit-backdrop-filter:blur(12px)!important;backdrop-filter:blur(12px)!important;border:1px solid var(--card-border)!important;border-radius:16px!important;transition:all .3s cubic-bezier(.4,0,.2,1)!important}.dataset-card:hover{border-color:var(--accent-color)!important;transform:translateY(-4px);box-shadow:var(--card-shadow)}.badge-premium{padding:4px 10px;border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;gap:4px}.badge-private{background:#fbbf241a;color:#fbbf24;border:1px solid rgba(251,191,36,.2)}.badge-shared{background:#10b9811a;color:#10b981;border:1px solid rgba(16,185,129,.2)}.file-list-item{background:var(--sidebar-item-active)!important;border:1px solid var(--border-color)!important;transition:all .2s ease}.file-list-item:hover{background:var(--accent-soft)!important;border-color:var(--accent-color)!important}.btn-primary{background:linear-gradient(90deg,#06b6d4,#2563eb);color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:opacity .2s}.btn-primary:hover{opacity:.9}.input-field{background:var(--input-bg);border:1px solid var(--input-border);color:var(--text-primary);padding:12px;border-radius:8px;width:100%;margin-bottom:16px;transition:all .2s}.input-field:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px var(--accent-soft)}.file-row{display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:1px solid var(--border-color)}.file-row:last-child{border-bottom:none}@media(max-width:768px){.metric-grid{grid-template-columns:1fr!important}.glass-card{padding:16px}.header-content{flex-direction:column;align-items:flex-start!important;gap:16px}.header-actions{width:100%;flex-direction:column;gap:8px}.header-actions>*{width:100%!important}.mobile-menu-btn{display:flex!important}.sidebar-collapsed{transform:translate(-100%)}.sidebar-open{transform:translate(0);z-index:1000}}