:root{--primary: #3b82f6;--primary-dark: #2563eb;--primary-light: #60a5fa;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827}*{-webkit-tap-highlight-color:transparent}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--gray-100);color:var(--gray-900);line-height:1.5}#root{min-height:100vh}h1{font-size:1.875rem;font-weight:700;margin-bottom:1rem}h2{font-size:1.5rem;font-weight:600;margin-bottom:.75rem}h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border-radius:.5rem;border:none;cursor:pointer;transition:all .2s;min-height:44px;text-decoration:none}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-success{background-color:var(--success);color:#fff}.btn-danger{background-color:var(--danger);color:#fff}.btn-secondary{background-color:var(--gray-200);color:var(--gray-700)}.btn-lg{padding:1rem 2rem;font-size:1.125rem;min-height:56px}.btn-block{display:flex;width:100%}.card{background:#fff;border-radius:.75rem;padding:1.5rem;box-shadow:0 1px 3px #0000001a;margin-bottom:1rem}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--gray-700)}.form-input{width:100%;padding:.75rem;font-size:1rem;border:2px solid var(--gray-300);border-radius:.5rem;min-height:44px}.form-input:focus{outline:none;border-color:var(--primary)}.form-select{width:100%;padding:.75rem;font-size:1rem;border:2px solid var(--gray-300);border-radius:.5rem;background-color:#fff;min-height:44px}.text-center{text-align:center}.text-right{text-align:right}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.p-1{padding:.5rem}.p-2{padding:1rem}.p-3{padding:1.5rem}.text-primary{color:var(--primary)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-gray{color:var(--gray-600)}.font-bold{font-weight:700}.font-semibold{font-weight:600}.spinner{border:3px solid rgba(59,130,246,.3);border-top:3px solid var(--primary);border-radius:50%;width:24px;height:24px;animation:spin 1s linear infinite;display:inline-block}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.alert{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.alert-success{background-color:#d1fae5;color:#065f46}.alert-danger{background-color:#fee2e2;color:#991b1b}.alert-info{background-color:#dbeafe;color:#1e40af}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--gray-200);display:flex;justify-content:space-around;padding:.5rem 0;z-index:100;box-shadow:0 -2px 10px #0000001a}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;padding:.5rem 1rem;color:var(--gray-600);text-decoration:none;font-size:.75rem;min-width:64px;min-height:56px;justify-content:center}.bottom-nav-item.active{color:var(--primary)}.bottom-nav-icon{font-size:1.5rem;margin-bottom:.25rem}.main-content{padding-bottom:80px;min-height:100vh}@media (min-width: 768px){.bottom-nav{display:none}.main-content{padding-bottom:2rem}}