:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--secondary-color: #64748b;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--background: #f8fafc;--card-background: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--background);color:var(--text-primary);line-height:1.6}.login-container,.proyectos-container,.admin-container{max-width:1200px;margin:0 auto;padding:2rem}.login-card,.proyecto-card{background:var(--card-background);border-radius:12px;padding:2rem;box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.login-card{max-width:450px;margin:4rem auto}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-primary)}.form-control,.search-input,.select-filter{width:100%;padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:all .3s ease}.form-control:focus,.search-input:focus,.select-filter:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.btn-primary,.btn-secondary,.btn-view,.btn-delete,.btn-admin{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease;display:inline-block}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn-primary:disabled{background-color:var(--secondary-color);cursor:not-allowed;transform:none}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover{background-color:#475569}.btn-view{background-color:var(--success-color);color:#fff}.btn-delete{background-color:var(--danger-color);color:#fff}.btn-admin{background-color:var(--warning-color);color:#fff}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid var(--border-color)}.header h1{font-size:2rem;color:var(--text-primary)}.header-actions{display:flex;gap:1rem}.filters-section{display:flex;gap:1rem;margin-bottom:2rem;flex-wrap:wrap;align-items:center}.filter-group{flex:1;min-width:250px}.proyectos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:1.5rem}.proyecto-card{border:1px solid var(--border-color);transition:transform .3s ease,box-shadow .3s ease}.proyecto-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.proyecto-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.proyecto-header h3{font-size:1.25rem;color:var(--text-primary);margin:0;flex:1}.estado-badge{padding:.25rem .75rem;border-radius:20px;font-size:.875rem;font-weight:500;white-space:nowrap}.estado-aprobado{background-color:#d1fae5;color:#065f46}.estado-pendiente{background-color:#fef3c7;color:#92400e}.estado-rechazado{background-color:#fee2e2;color:#991b1b}.proyecto-body{margin-bottom:1rem}.descripcion{color:var(--text-secondary);margin-bottom:1rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.proyecto-info{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem;font-size:.875rem}.info-item{color:var(--text-secondary)}.info-item strong{color:var(--text-primary)}.proyecto-stats{display:flex;gap:1rem;font-size:.875rem;color:var(--text-secondary)}.proyecto-actions{display:flex;gap:.5rem;margin-top:1rem}.proyecto-actions button{flex:1;padding:.5rem;font-size:.875rem}.error,.error-message{color:var(--danger-color);font-size:.875rem;margin-top:.25rem}.loading{text-align:center;padding:3rem;color:var(--text-secondary);font-size:1.125rem}.no-results{text-align:center;padding:3rem;color:var(--text-secondary);font-size:1.125rem;grid-column:1 / -1}.subtitle{text-align:center;color:var(--text-secondary);margin-bottom:2rem}.register-link{text-align:center;margin-top:1.5rem;color:var(--text-secondary)}.register-link a{color:var(--primary-color);text-decoration:none;font-weight:500;cursor:pointer}.register-link a:hover{text-decoration:underline}@media (max-width: 768px){.proyectos-grid{grid-template-columns:1fr}.filters-section{flex-direction:column}.header{flex-direction:column;gap:1rem;align-items:flex-start}.header-actions{width:100%;justify-content:stretch}.header-actions button{flex:1}}