:root{--primary-blue: #2563eb;--secondary-blue: #3b82f6;--accent-blue: #60a5fa;--dark-blue: #1e3a8a;--white: #ffffff;--light-blue: #eff6ff;--background: #f8fafc;--text-dark: #1e293b;--text-light: #64748b;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--success: #10b981;--error: #ef4444}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,var(--background) 0%,var(--light-blue) 100%);color:var(--text-dark);line-height:1.6;min-height:100vh}main{padding-bottom:80px}section{padding:3% 2%;min-height:80vh}.container{max-width:95%;margin:0 auto;width:min(100%,600px)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slideOutRight{0%{transform:translate(0);opacity:1}to{transform:translate(100%);opacity:0}}.fade-in{animation:fadeIn .6s ease-out}.slide-up{animation:slideUp .5s ease-out}.header{text-align:center;margin-bottom:5%}.header h1{font-size:clamp(1.75rem,5vw,2.5rem);font-weight:700;background:linear-gradient(135deg,var(--dark-blue),var(--primary-blue));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem}.header p{color:var(--text-light);font-size:clamp(.9rem,2.5vw,1.1rem)}.bottom-nav{position:fixed;inset:auto 0 0;background:#fff;border-top:1px solid #e5e7eb;display:flex;justify-content:space-around;padding:12px 0;box-shadow:0 -2px 10px #0000001a;z-index:1000}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:#6b7280;font-size:.75rem;transition:color .3s ease}.nav-item.active{color:var(--primary-blue)}.nav-icon{font-size:1.5rem}.search-container{margin-bottom:20px}.search-box{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;color:var(--text-light);pointer-events:none}.search-input{width:100%;padding:12px 12px 12px 40px;border:2px solid #e5e7eb;border-radius:12px;font-size:1rem;transition:border-color .3s ease}.search-input:focus{outline:none;border-color:var(--primary-blue)}.search-stats,.no-results{margin-top:8px;color:var(--text-light);font-size:.9rem;text-align:left}.no-results{padding:40px 20px;text-align:center}.auth-form{background:linear-gradient(135deg,var(--white) 0%,var(--light-blue) 100%);border-radius:20px;padding:2.5rem;box-shadow:var(--shadow-hover);border:1px solid rgba(37,99,235,.1);position:relative;overflow:hidden}.auth-form:before,.auth-form:after{content:"";position:absolute;width:100px;height:100px;background:linear-gradient(135deg,var(--accent-blue),var(--primary-blue));border-radius:50%;opacity:.1}.auth-form:before{top:-50px;right:-50px}.auth-form:after{bottom:-50px;left:-50px}.form-content{position:relative;z-index:1}.form-group{margin-bottom:1.5rem}.form-group label{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;font-weight:600;color:var(--text-dark);font-size:.95rem;text-align:left}.form-group label svg{flex-shrink:0}.form-group input,.form-group select{width:100%;padding:1rem 1.25rem;border:2px solid #e5e7eb;border-radius:12px;font-size:1rem;background:#fff;transition:border-color .3s ease,box-shadow .3s ease}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 3px #2563eb1a}.form-group select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right .75rem center;background-size:1.5em;padding-right:3rem}.upload-section{border:2px dashed var(--accent-blue);border-radius:12px;padding:1.5rem;text-align:center;background:#60a5fa0d;margin-bottom:1.5rem;transition:all .3s ease;display:flex;flex-direction:column;align-items:center}.upload-section:hover{border-color:var(-- CALprimary-blue);background:#60a5fa1a}.image-preview{max-width:100%;max-height:200px;margin-top:1rem;border-radius:8px;display:none}.upload-status{margin-top:.5rem;padding:.5rem;border-radius:6px;font-size:.875rem;font-weight:500;text-align:center;transition:all .3s ease}.upload-success{background-color:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.upload-error{background-color:#fee2e2;color:#991b1b;border:1px solid #fecaca}.upload-info{background-color:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}.submit-btn,.upload-btn,.cancel-btn{width:100%;padding:1rem 1.25rem;border:none;border-radius:12px;cursor:pointer;font-weight:600;font-size:1rem;transition:all .3s ease;position:relative;overflow:hidden}.submit-btn{background:linear-gradient(135deg,var(--primary-blue),var(--secondary-blue));color:#fff}.upload-btn{background:linear-gradient(135deg,var(--accent-blue),var(--primary-blue));color:#fff;margin-top:.5rem}.cancel-btn{background:linear-gradient(135deg,#6b7280,#9ca3af);color:#fff;margin-top:1rem}.submit-btn:hover:not(:disabled),.upload-btn:hover,.cancel-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}.cancel-btn:hover{background:linear-gradient(135deg,#4b5563,#6b7280)}.submit-btn:disabled,#submit-btn:disabled{opacity:.6;cursor:not-allowed;background:linear-gradient(135deg,#9ca3af,#6b7280)}.button-overlay{position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transform:translate(-100%);transition:transform .5s}.submit-btn:hover .button-overlay{transform:translate(100%)}.button-text{display:inline-block;transition:transform .2s ease}#submit-btn:not(:disabled):hover .button-text{transform:scale(1.05)}.refacciones-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:16px;margin-top:20px}.refaccion-card{background:#fff;border-radius:12px;padding:16px;box-shadow:var(--shadow);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;border:2px solid transparent;display:flex;gap:16px;align-items:center}.refaccion-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent-blue)}.refaccion-image{flex-shrink:0;width:80px;height:80px;border-radius:8px;overflow:hidden;background:#f3f4f6;display:flex;align-items:center;justify-content:center}.refaccion-image img{width:100%;height:100%;object-fit:contain;object-position:center}.no-image{font-size:1.5rem;color:#9ca3af}.refaccion-info{flex:1;min-width:0}.refaccion-info h3{margin:0 0 8px;color:var(--text-dark);font-size:1.1rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.refaccion-details{display:grid;grid-template-columns:1fr 1fr;gap:4px}.detail-column p{margin:2px 0;color:var(--text-light);font-size:.85rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.detail-column p strong{color:var(--text-dark);font-weight:600}@media(max-width:768px){.refacciones-grid{grid-template-columns:1fr;gap:12px}.refaccion-card{padding:12px;gap:12px}.refaccion-image{width:70px;height:70px}.refaccion-info h3{font-size:1rem;margin-bottom:6px}.refaccion-details{gap:2px}.detail-column p{font-size:.75rem;line-height:1.2}.form-group select{min-height:60px}}@media(max-width:480px){.auth-form{padding:1.5rem;margin:0 10px}.refaccion-card{padding:10px;gap:10px}.refaccion-image{width:60px;height:60px}.refaccion-info h3{font-size:.9rem}.detail-column p{font-size:.7rem}input,select{padding:1.25rem 1.5rem!important;font-size:1.1rem!important}select{background-position:right 1.5rem center;padding-right:4rem!important}}@media(max-width:360px){.refaccion-details{grid-template-columns:1fr}.refaccion-image{width:50px;height:50px}}