:root{--j-primary: #7703ED;--j-secondary: #CA00D2;--j-accent: #3637FD;--j-text: #181818;--j-muted: #666666;--j-border: #E8D9F6;--j-bg: #f8fafc;--j-card-bg: #ffffff;--j-success: #10b981;--j-warning: #f59e0b;--j-error: #ef4444;--j-info: #3b82f6;--header-height: 64px;--sidebar-width: 250px;--border-radius: 12px;--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--transition: all .2s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,#app{min-height:100vh;margin:0;padding:0;background:var(--j-bg);color:var(--j-text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.5;overflow-x:hidden}#app{display:flex;flex-direction:column;min-height:100vh}.layout{display:flex;flex-direction:column;min-height:100vh;width:100%}.container{padding:1.5rem;width:100%;max-width:1400px;margin:0 auto;flex:1;transition:var(--transition)}@media (min-width: 768px){.container{padding:1.5rem 2rem}}@media (min-width: 1024px){.container{padding:2rem 3rem}}.app-header{position:sticky;top:0;height:var(--header-height);display:flex;align-items:center;justify-content:space-between;background:var(--j-card-bg);border-bottom:1px solid var(--j-border);padding:0 1.5rem;z-index:1000;box-shadow:var(--shadow-sm);width:100%;gap:1rem}.brand{display:flex;align-items:center;gap:.5rem;font-weight:700;font-size:1.25rem;color:var(--j-primary);flex-shrink:0}.brand-icon{width:28px;height:28px}.desktop-nav{display:none;flex:1;justify-content:center}.nav{display:flex;gap:.25rem;align-items:center}.nav-link{white-space:nowrap;padding:.5rem .75rem;border-radius:6px;transition:var(--transition);font-size:.875rem;font-weight:500;color:var(--j-text);text-decoration:none;display:flex;align-items:center;gap:.5rem;border:1px solid transparent;position:relative}.nav-link:hover{background:var(--j-border);color:var(--j-primary)}.nav-link.active{background:linear-gradient(90deg,var(--j-accent),var(--j-primary));color:#fff;box-shadow:0 2px 8px #7703ed4d}.mobile-menu-btn{display:none;align-items:center;justify-content:center;background:none;border:1px solid var(--j-border);padding:.5rem;border-radius:6px;cursor:pointer;color:var(--j-text);transition:var(--transition);min-width:40px;min-height:40px}.mobile-menu-btn:hover{background:var(--j-border);color:var(--j-primary)}.mobile-menu{position:fixed;top:var(--header-height);left:0;right:0;background:var(--j-card-bg);border-bottom:1px solid var(--j-border);box-shadow:var(--shadow-md);padding:0 1rem;z-index:999;max-height:0;overflow:hidden;transition:all .3s ease-in-out;opacity:0}.mobile-menu.mobile-menu-open{max-height:400px;padding:1rem;opacity:1}.mobile-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:998;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.mobile-menu .nav{flex-direction:column;gap:.5rem}.mobile-menu .nav-link{width:100%;justify-content:flex-start;padding:.75rem 1rem}.logout-btn{display:flex;align-items:center;gap:.5rem;background:none;border:1px solid var(--j-border);padding:.5rem .75rem;border-radius:6px;cursor:pointer;color:var(--j-text);transition:var(--transition);font-size:.875rem;font-weight:500;flex-shrink:0}.logout-btn:hover{background:var(--j-error);color:#fff;border-color:var(--j-error)}.logout-text{display:none}.nav::-webkit-scrollbar{display:none}h1{font-size:28px;font-weight:800;margin:0;color:var(--j-text)}h2{font-size:20px;font-weight:700;margin:0 0 8px;color:var(--j-text)}h3{font-size:16px;font-weight:600;margin:0 0 12px;color:var(--j-text)}p{color:var(--j-muted);margin:0}.card{background:var(--j-card-bg);border:1px solid var(--j-border);border-radius:12px;padding:20px;box-shadow:0 1px 3px #0000001a}.btn-primary{background:linear-gradient(90deg,var(--j-accent),var(--j-primary),var(--j-secondary));color:#fff;border:none;padding:12px 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s;font-size:14px}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #7703ed4d}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.row{display:flex;gap:12px;align-items:center}.input{flex:1;padding:12px 16px;border-radius:8px;border:1px solid var(--j-border);font-size:14px;transition:border-color .2s}.input:focus{outline:none;border-color:var(--j-primary);box-shadow:0 0 0 3px #7703ed1a}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--j-bg) 0%,#e0e7ff 100%);padding:20px}.login-card{background:var(--j-card-bg);border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.login-header{text-align:center;margin-bottom:32px}.login-icon{width:48px;height:48px;margin:0 auto 16px;color:var(--j-primary)}.login-header h1{font-size:24px;margin-bottom:8px}.login-header p{color:var(--j-muted);font-size:14px}.login-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-weight:600;font-size:14px;color:var(--j-text)}.login-btn{width:100%;padding:14px;margin-top:8px}.login-footer{margin-top:24px;text-align:center}.login-footer p{font-size:12px;color:var(--j-muted)}.error-message{background:#fef2f2;color:var(--j-error);padding:12px;border-radius:8px;font-size:14px;border:1px solid #fecaca}.dashboard-header{margin-bottom:32px}.dashboard-header h1{margin-bottom:8px}.dashboard-header p{font-size:16px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem;width:100%}@media (min-width: 1024px){.stats-grid{grid-template-columns:repeat(3,1fr);gap:1.5rem}}@media (min-width: 1400px){.stats-grid{grid-template-columns:repeat(6,1fr)}}.stat-card{background:var(--j-card-bg);border:1px solid var(--j-border);border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000001a}.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.stat-header{display:flex;justify-content:space-between;align-items:flex-start}.stat-info h3{font-size:14px;font-weight:500;color:var(--j-muted);margin-bottom:8px}.stat-value{font-size:32px;font-weight:800;line-height:1;margin-bottom:4px}.stat-subtitle{font-size:12px;color:var(--j-muted)}.stat-icon{width:24px;height:24px;opacity:.7}.stat-trend{display:flex;align-items:center;gap:4px;margin-top:12px;font-size:12px;color:var(--j-success)}.dashboard-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media (min-width: 768px){.dashboard-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.dashboard-grid{grid-template-columns:2fr 1fr;gap:2rem}.dashboard-grid.four-items{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1400px){.dashboard-grid{grid-template-columns:1fr 1fr 1fr}.dashboard-grid.four-items{grid-template-columns:repeat(2,1fr)}.stats-grid.six-items{grid-template-columns:repeat(6,1fr)}}.chart-card{background:var(--j-card-bg);border:1px solid var(--j-border);border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000001a}.chart-card h3{margin-bottom:20px;color:var(--j-text)}.chart-container{background:var(--j-card-bg);border:1px solid var(--j-border);border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000001a;margin-bottom:2rem}.chart-container h3{margin-bottom:20px;color:var(--j-text)}.list-card{background:var(--j-card-bg);border:1px solid var(--j-border);border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000001a}.recent-list{display:flex;flex-direction:column;gap:12px}.recent-item{display:flex;justify-content:space-between;align-items:center;padding:12px;background:var(--j-bg);border-radius:8px;border:1px solid var(--j-border)}.recent-info{display:flex;flex-direction:column;gap:2px}.recent-info strong{font-weight:600;color:var(--j-text)}.recent-info span{font-size:12px;color:var(--j-muted)}.activity-badge{background:var(--j-success);color:#fff;padding:2px 8px;border-radius:12px;font-size:10px;font-weight:500}.ranking-list{display:flex;flex-direction:column;gap:12px}.ranking-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--j-bg);border-radius:8px;border:1px solid var(--j-border)}.ranking-position{font-weight:800;color:var(--j-primary);min-width:32px}.ranking-info{flex:1;display:flex;flex-direction:column;gap:2px}.ranking-info strong{font-weight:600;color:var(--j-text)}.ranking-info span{font-size:12px;color:var(--j-muted)}.ranking-bar{width:60px;height:8px;background:var(--j-border);border-radius:4px;overflow:hidden}.ranking-fill{height:100%;border-radius:4px;transition:width .3s ease}.loading-container,.error-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;text-align:center}.loading-spinner{width:32px;height:32px;border:3px solid var(--j-border);border-top:3px solid var(--j-primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-container h1{color:var(--j-error);margin-bottom:8px}table{width:100%;border-collapse:collapse;margin-top:16px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--j-border)}th{font-weight:600;color:var(--j-text);background:var(--j-bg)}td{color:var(--j-text)}.metrics-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:24px;margin-top:32px}.metric-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--j-border)}.metric-row:last-child{border-bottom:none}.metric-row span:first-child{font-weight:600;color:var(--j-text)}.metric-row span:last-child{color:var(--j-muted);font-size:14px}@media (max-width: 767px){.app-header{padding:0 1rem}.desktop-nav{display:none}.mobile-menu-btn{display:flex!important}.stats-grid,.dashboard-grid{grid-template-columns:1fr;gap:1rem}.chart-container{padding:1rem}.metrics-details{grid-template-columns:1fr}.container{padding:1rem}.logout-text{display:none}}@media (min-width: 768px) and (max-width: 1023px){.stats-grid{grid-template-columns:repeat(2,1fr)}.mobile-menu-btn{display:flex}.desktop-nav{display:none}}@media (min-width: 1024px){.desktop-nav{display:flex}.mobile-menu-btn{display:none}.logout-text{display:inline}.app-header{padding:0 2rem}.container{padding:2rem 3rem}}@media (min-width: 1400px){.container{max-width:1600px;padding:2rem 4rem}.app-header{padding:0 4rem}}