:root{--bg-main: #F4F7F9;--bg-card: #FFFFFF;--text-primary: #0F172A;--text-secondary: #475569;--color-primary: #2563EB;--color-primary-hover: #1D4ED8;--color-navy: #0F172A;--color-border: #E2E8F0;--color-success: #10B981;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .025);--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-sans);line-height:1.5;-webkit-font-smoothing:antialiased}.dashboard-layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background-color:var(--color-navy);color:#fff;padding:2rem 1.5rem;display:flex;flex-direction:column;gap:2rem}.sidebar-title{font-size:1.25rem;font-weight:700;letter-spacing:-.025em;display:flex;align-items:center;gap:.5rem}.nav-link{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius-md);color:#94a3b8;text-decoration:none;font-weight:500;transition:all .2s ease;cursor:pointer}.nav-link:hover{background-color:#ffffff1a;color:#fff}.nav-link.active{background-color:var(--color-primary);color:#fff}.main-content{padding:3rem;max-width:1200px;margin:0 auto;width:100%}.header-section{margin-bottom:3rem}.page-title{font-size:2rem;font-weight:700;color:var(--text-primary);letter-spacing:-.025em;margin-bottom:.5rem}.page-subtitle{color:var(--text-secondary);font-size:1.1rem}.search-container{position:relative;margin-bottom:3rem}.search-input{width:100%;padding:1.25rem 1.5rem 1.25rem 3.5rem;font-size:1.1rem;border:1px solid var(--color-border);border-radius:var(--radius-lg);outline:none;background-color:var(--bg-card);box-shadow:var(--shadow-sm);transition:all .2s ease;font-family:var(--font-sans)}.search-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 4px #2563eb1a}.search-icon{position:absolute;left:1.25rem;top:50%;transform:translateY(-50%);color:#94a3b8}.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:3rem}.metric-card{background-color:var(--bg-card);padding:1.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);display:flex;align-items:center;gap:1rem;transition:transform .2s ease,box-shadow .2s ease}.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.metric-icon-wrapper{padding:1rem;background-color:#eff6ff;border-radius:var(--radius-md);color:var(--color-primary);display:flex;align-items:center;justify-content:center}.metric-value{font-size:1.75rem;font-weight:700;color:var(--text-primary);line-height:1;margin-bottom:.25rem}.metric-label{color:var(--text-secondary);font-size:.875rem;font-weight:500}.analytics-split{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.panel{background-color:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--color-border)}.panel-title{font-size:1.1rem;font-weight:600;margin-bottom:1.5rem;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.paper-row{padding:1rem 0;border-bottom:1px solid var(--color-border)}.paper-row:last-child{border-bottom:none}.paper-title{font-weight:600;color:var(--color-primary);margin-bottom:.25rem;cursor:pointer}.paper-title:hover{text-decoration:underline}.paper-meta{font-size:.875rem;color:var(--text-secondary)}.btn{padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:500;cursor:pointer;border:none;transition:all .2s ease;font-family:inherit}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.loading-spinner{display:flex;align-items:center;justify-content:center;height:200px;color:var(--color-primary)}