.app-container{display:flex;width:100%;min-height:100vh;background:#f5f5f5}.sidebar{width:240px;min-width:240px;background:#1a1a2e;color:#e0e0e0;display:flex;flex-direction:column;padding:20px 0}.sidebar-header{padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-header h1{font-size:24px;color:#fff;margin:0 0 4px}.sidebar-header .subtitle{font-size:12px;color:#ffffff80;margin:0}.sidebar-nav{flex:1;padding:20px 0;display:flex;flex-direction:column;gap:4px}.nav-item{display:block;padding:10px 20px;color:#ffffffb3;text-decoration:none;font-size:14px;transition:all .2s;border-left:3px solid transparent}.nav-item:hover{background:#ffffff1a;color:#fff;border-left-color:#ffffff4d}.nav-item.active{background:#667eea33;color:#fff;border-left-color:#667eea;font-weight:500}.sidebar-footer{padding:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#fff6;display:flex;flex-direction:column;align-items:center;gap:10px}.btn-logout{background:#ffffff1a;color:#ffffffb3;border:1px solid rgba(255,255,255,.15);padding:6px 16px;border-radius:6px;cursor:pointer;font-size:12px;transition:all .2s}.btn-logout:hover{background:#ff000026;border-color:#ff00004d;color:#ff6b6b}.main-content{flex:1;padding:20px;overflow-y:auto}.page-container{max-width:900px;margin:0 auto}.page-title{font-size:24px;font-weight:600;color:#1a1a2e;margin-bottom:20px}.sprint-placeholder{background:#fff;border-radius:12px;padding:40px;text-align:center;color:#888;font-size:16px;box-shadow:0 2px 8px #00000014}.sprint-placeholder .icon{font-size:48px;margin-bottom:16px}.sprint-placeholder .hint{font-size:13px;color:#aaa;margin-top:8px}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.page-loading{padding:20px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;font-weight:400;color:#213547;background-color:#f5f5f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--transition-fast: .15s ease;--transition-normal: .25s ease}*{margin:0;padding:0;box-sizing:border-box}body{min-height:100vh;display:flex;scroll-behavior:smooth}#root{display:flex;width:100%;min-height:100vh}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#00000040}::selection{background:#4a6cf733;color:inherit}:focus-visible{outline:2px solid #4a6cf7;outline-offset:2px}.page-enter{opacity:0;transform:translateY(8px)}.page-enter-active{opacity:1;transform:translateY(0);transition:opacity .25s ease,transform .25s ease}@keyframes skeleton-pulse{0%,to{opacity:.4}50%{opacity:.8}}.skeleton{animation:skeleton-pulse 1.5s ease-in-out infinite;background:linear-gradient(90deg,#eee 25%,#f5f5f5,#eee 75%);background-size:200% 100%;border-radius:4px}.card-hover{transition:transform .2s ease,box-shadow .2s ease}.card-hover:hover{transform:translateY(-2px);box-shadow:0 4px 16px #00000014}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeInUp .3s ease forwards}