:root{--primary: #3b82f6;--primary-dark: #2563eb;--primary-light: #60a5fa;--secondary: #64748b;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--info: #0ea5e9;--success-bg: #d1fae5;--danger-bg: #fee2e2;--warning-bg: #fef3c7;--info-bg: #e0f2fe;--bg-body: #f8fafc;--bg-light: #f1f5f9;--text-main: #1e293b;--text-secondary: #475569;--text-muted: #94a3b8;--border-color: #e2e8f0;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .15);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--max-width: 1400px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--bg-body);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:24px;max-width:var(--max-width);margin:0 auto;width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-size:.938rem;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background-color:var(--secondary);color:#fff}.btn-secondary:hover:not(:disabled){background-color:#475569}.btn-success{background-color:var(--success);color:#fff}.btn-success:hover:not(:disabled){background-color:#059669}.btn-danger{background-color:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background-color:#dc2626}.btn-outline{background-color:#fff;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover:not(:disabled){background-color:var(--primary);color:#fff}.btn-sm{padding:6px 14px;font-size:.813rem}.btn-lg{padding:14px 28px;font-size:1.063rem}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.875rem;font-weight:600;color:var(--text-main);margin-bottom:6px;padding-left:2px}.required{color:var(--danger);margin-left:4px}input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=time],select,textarea{width:100%;padding:10px 14px;border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:.938rem;font-family:inherit;transition:all .2s;background-color:#fff}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}input:disabled,select:disabled,textarea:disabled{background-color:var(--bg-light);cursor:not-allowed;opacity:.6}textarea{min-height:100px;resize:vertical}.input-error{border-color:var(--danger)!important}.error-message{color:var(--danger);font-size:.813rem;margin-top:6px}.form-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;padding-top:20px;border-top:2px solid var(--border-color)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0009;display:flex;align-items:center;justify-content:center;z-index:10000;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:var(--radius-lg);max-width:800px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d;animation:modalSlideIn .3s ease;position:relative;z-index:10001}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-50px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 32px;border-bottom:2px solid var(--border-color)}.modal-header h2{font-size:1.5rem;font-weight:700;color:var(--text-main);margin:0}.modal-close{background:none;border:none;font-size:1.75rem;color:var(--text-muted);cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.modal-close:hover{background-color:var(--bg-light);color:var(--text-main)}.modal-body{padding:32px}.modal-footer{padding:20px 32px;border-top:2px solid var(--border-color);display:flex;gap:12px;justify-content:flex-end}.data-grid{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.data-table{width:100%;border-collapse:collapse}.data-table thead{background-color:var(--bg-light)}.data-table th{text-align:left;padding:14px 16px;font-weight:600;color:var(--text-secondary);font-size:.813rem;text-transform:uppercase;letter-spacing:.5px;border-bottom:2px solid var(--border-color)}.data-table td{padding:14px 16px;border-bottom:1px solid var(--bg-light);color:var(--text-main)}.data-table tbody tr{transition:background-color .15s}.data-table tbody tr:hover{background-color:var(--bg-light)}.data-table tbody tr:last-child td{border-bottom:none}.table-actions{display:flex;gap:8px;align-items:center}.table-actions .btn{padding:6px 12px;font-size:.813rem}.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:12px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.3px}.badge-pending{background-color:var(--warning-bg);color:#b45309}.badge-approved{background-color:var(--success-bg);color:#0f5132}.badge-rejected{background-color:var(--danger-bg);color:#842029}.badge-in-progress{background-color:var(--info-bg);color:#0369a1}.badge-completed{background-color:#d1fae5;color:#065f46}.alert{padding:14px 18px;border-radius:var(--radius-md);margin-bottom:20px;display:flex;align-items:center;gap:12px}.alert-success{background-color:var(--success-bg);color:#0f5132;border-left:4px solid var(--success)}.alert-error{background-color:var(--danger-bg);color:#842029;border-left:4px solid var(--danger)}.alert-warning{background-color:var(--warning-bg);color:#b45309;border-left:4px solid var(--warning)}.alert-info{background-color:var(--info-bg);color:#0369a1;border-left:4px solid var(--info)}.navbar{background:#fff;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:1000}.navbar-container{max-width:var(--max-width);margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;height:70px}.navbar-brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:1.375rem;font-weight:700;color:var(--text-main)}.brand-icon{font-size:1.75rem}.navbar-menu{display:flex;gap:8px;list-style:none;margin:0;padding:0}.nav-link{display:flex;align-items:center;gap:8px;padding:10px 16px;text-decoration:none;color:var(--text-secondary);font-weight:500;border-radius:var(--radius-md);transition:all .2s;background:none;border:none;cursor:pointer;font-size:.938rem}.nav-link:hover{background-color:var(--bg-light);color:var(--text-main)}.nav-link.active{background-color:var(--primary);color:#fff}.nav-icon{font-size:1.125rem}.nav-dropdown{position:relative}.nav-dropdown-toggle{display:flex;align-items:center;gap:6px}.dropdown-arrow{font-size:.6rem;margin-left:4px;opacity:.7}.nav-dropdown-menu{position:absolute;top:100%;left:0;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);min-width:220px;padding:8px 0;margin-top:8px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s ease;z-index:2000}.nav-dropdown:hover .nav-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:flex;align-items:center;gap:10px;padding:10px 16px;color:#374151;text-decoration:none;font-size:.875rem;transition:background .15s;border:none;background:none;width:100%;cursor:pointer;text-align:left}.dropdown-item:hover{background:#f3f4f6}.navbar-user{position:relative;cursor:pointer}.user-info{display:flex;align-items:center;gap:12px;padding:6px 12px;border-radius:var(--radius-md);transition:background .2s}.user-info:hover{background-color:var(--bg-light)}.user-avatar{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary-light),var(--primary));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}.user-details{display:flex;flex-direction:column}.user-name{font-weight:600;font-size:.875rem;color:var(--text-main)}.user-role{font-size:.75rem;color:var(--secondary)}.user-dropdown{position:absolute;top:100%;right:0;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);min-width:240px;padding:8px 0;margin-top:8px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s ease;z-index:2000}.navbar-user:hover .user-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-header{padding:12px 16px;border-bottom:1px solid #e5e7eb}.dropdown-user-name{font-weight:600;color:#1f2937;font-size:.9rem}.dropdown-user-email{color:#6b7280;font-size:.8rem;margin-top:2px}.dropdown-divider{height:1px;background:#e5e7eb;margin:8px 0}.dropdown-item-danger{color:#dc2626!important}.dropdown-item-danger:hover{background:#fef2f2!important}.dashboard{padding:24px;max-width:var(--max-width);margin:0 auto}.welcome-section{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;padding:24px 32px;background:linear-gradient(135deg,#1e3a5f,#2563eb);border-radius:16px;color:#fff;box-shadow:0 4px 10px #2563eb33}.welcome-content h1{font-size:1.75rem;font-weight:700;margin:0 0 8px}.welcome-content p{margin:0;opacity:.9}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-bottom:32px}.stat-card{display:flex;align-items:center;gap:16px;padding:20px 24px;background:#fff;border-radius:12px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.stat-icon{font-size:2rem;flex-shrink:0}.stat-info{display:flex;flex-direction:column}.stat-value{font-size:1.75rem;font-weight:700;color:var(--text-main);line-height:1}.stat-label{font-size:.875rem;color:var(--secondary);margin-top:4px}.stat-total{border-left:4px solid var(--primary)}.stat-pending{border-left:4px solid var(--warning)}.stat-approved{border-left:4px solid var(--success)}.management-container{max-width:var(--max-width);margin:0 auto;padding:20px}.management-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:2px solid var(--border-color)}.management-header h2{font-size:1.5rem;font-weight:600;color:var(--text-main);margin:0}.project-form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:20px}.project-form-grid .form-group.full-width{grid-column:1 / -1}.form-container{padding:20px;max-width:var(--max-width);margin:0 auto}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:2px solid var(--border-color)}.page-header h2{margin:0 0 4px;color:var(--text-main);font-size:1.75rem;font-weight:700}.detail-table{width:100%;border-collapse:collapse}.detail-table th{text-align:right;padding:12px 16px;font-weight:600;color:var(--text-secondary);width:200px;vertical-align:top;background:var(--bg-light)}.detail-table td{text-align:left;padding:12px 16px;color:var(--text-main);border-bottom:1px solid var(--bg-light);font-weight:500}.profile-container{max-width:1200px;margin:0 auto;padding:24px}.profile-tabs{display:flex;gap:4px;margin-bottom:0;border-bottom:3px solid var(--border-color);padding:0;list-style:none}.profile-tabs .tab{padding:14px 28px;background:transparent;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:.938rem;font-weight:600;color:var(--secondary);transition:all .25s ease;margin-bottom:-3px}.profile-tabs .tab:hover:not(.active){color:var(--text-secondary);background:#0000000a}.profile-tabs .tab.active{color:var(--primary);background:#fff;border-bottom:3px solid var(--primary)}.profile-section{background:#fff;border-radius:0 var(--radius-lg) var(--radius-lg) var(--radius-lg);padding:36px;box-shadow:var(--shadow-md)}@media (max-width: 768px){.navbar-menu{display:none}.stats-grid{grid-template-columns:repeat(2,1fr)}.project-form-grid{grid-template-columns:1fr}.data-table{min-width:800px}.data-grid{overflow-x:auto}}