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#ef4444;--warning-color: #f59e0b;--text-primary: #1f2937;--text-secondary: #6b7280;--text-light: #9ca3af;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--border-color: #e5e7eb;--border-light: #f3f4f6;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.6;color:var(--text-primary);background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-primary) 100%);min-height:100vh;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}nav{background:var(--bg-primary);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2}nav .container{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;max-width:1200px;margin:0 auto}nav h1{font-size:1.5rem;font-weight:700;color:var(--text-primary)}nav .nav-links{display:flex;gap:1rem;align-items:center}nav a{color:var(--text-secondary);text-decoration:none;padding:.5rem 1rem;border-radius:var(--radius-md);transition:all .2s ease;font-weight:500}nav a:hover{background:var(--bg-tertiary);color:var(--primary-color)}nav a.active{background:var(--primary-color);color:#fff}.container{max-width:1200px;margin:2rem auto;padding:0 1.5rem}.page-header{margin-bottom:2rem}.page-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.page-subtitle{font-size:1.1rem;color:var(--text-secondary)}.card{background:var(--bg-primary);border:1px solid 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span{display:flex;align-items:center;gap:.5rem}.required{color:var(--error-color);font-size:1.1rem}.help-text{font-size:.875rem;color:var(--text-secondary);font-weight:400}input,textarea,select{padding:.75rem 1rem;font-size:1rem;border:2px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-primary);transition:all .2s ease;font-family:inherit}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4da7b226}input::placeholder,textarea::placeholder{color:var(--text-light)}textarea{resize:vertical;min-height:100px;font-family:Fira Code,Courier New,monospace;font-size:.9rem}input[type=file]{padding:.5rem;background:var(--bg-tertiary);border-style:dashed;cursor:pointer}input[type=file]:hover{background:var(--bg-secondary);border-color:var(--primary-color)}button{padding:.75rem 1.5rem;font-size:1rem;font-weight:600;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;position:relative;overflow:hidden}button:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}button:active:before{width:300px;height:300px}.btn-primary{background:var(--primary-color);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:var(--primary-dark)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:2px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-secondary);border-color:var(--primary-color);color:var(--primary-color)}.btn-danger{background:var(--error-color);color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-link{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;text-decoration:none;gap:.5rem}.btn-google{background:#fff;color:var(--text-primary);border:2px solid var(--border-color);width:100%;margin-top:1rem;gap:.75rem;white-space:nowrap}.btn-google:hover{background:var(--bg-secondary);border-color:var(--primary-color)}body.dark-mode .btn-google{background:#fff;color:#111827;border-color:#e5e7eb}body.dark-mode .btn-google:hover{background:#f3f4f6;color:#111827;border-color:#d1d5db}.btn-apple{background:#111827;color:#fff;border:2px solid #111827;width:100%;margin-top:1rem;gap:.75rem;white-space:nowrap}.btn-apple:hover{background:#000;border-color:#000}.auth-actions{display:grid;gap:.75rem}.auth-provider{margin-top:0}.auth-form{display:grid;gap:1rem}.auth-error{margin-bottom:1rem}.g-icon{width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;line-height:1;color:#4285f4;background:#fff;border:1px solid var(--border-color);border-radius:2px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:2rem}.model-card{background:var(--bg-primary);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:all .3s ease;display:flex;flex-direction:column}.model-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.model-thumbnail{width:100%;height:200px;object-fit:cover;background:var(--bg-tertiary);position:relative}.model-thumbnail 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var(--border-light)}.model-content{padding:1.25rem;flex:1;display:flex;flex-direction:column}.model-name{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem;display:-webkit-box;line-clamp:1;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.model-description{color:var(--text-secondary);font-size:.875rem;margin-bottom:1rem;display:-webkit-box;line-clamp:2;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}.model-meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem;font-size:.75rem}.model-tag{padding:.25rem .75rem;background:var(--bg-tertiary);color:var(--text-secondary);border-radius:var(--radius-sm);font-weight:500}.model-actions{display:flex;gap:.75rem;padding-top:1rem;border-top:1px solid var(--border-light)}.model-actions a,.model-actions button{flex:1;padding:.5rem;text-align:center;text-decoration:none;font-size:.875rem;font-weight:500;border-radius:var(--radius-sm);transition:all .2s 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1.5rem}.auth-card{background:var(--bg-primary);padding:2.5rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-xl)}.auth-header{text-align:center;margin-bottom:2rem}.auth-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.auth-subtitle{color:var(--text-secondary);font-size:1rem}.divider{margin:1.5rem 0;text-align:center;color:var(--text-light);position:relative;font-size:.875rem}.divider:before,.divider:after{content:"";position:absolute;top:50%;width:calc(50% - 2rem);height:1px;background:var(--border-color)}.divider:before{left:0}.divider:after{right:0}.loading{display:inline-block;width:20px;height:20px;border:3px solid var(--border-color);border-radius:50%;border-top-color:var(--primary-color);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:loading 1.5s 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0}.progress-fill{height:100%;background:var(--primary-color);border-radius:var(--radius-sm);transition:width .3s ease;position:relative;overflow:hidden}.progress-fill:after{content:"";position:absolute;top:0;left:0;bottom:0;right:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 2s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.tooltip{position:relative;display:inline-block}.tooltip .tooltip-text{visibility:hidden;background:var(--text-primary);color:var(--bg-primary);text-align:center;padding:.5rem .75rem;border-radius:var(--radius-sm);font-size:.875rem;position:absolute;z-index:1000;bottom:125%;left:50%;transform:translate(-50%);white-space:nowrap;opacity:0;transition:opacity .3s}.tooltip .tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:var(--text-primary) transparent transparent transparent}.tooltip:hover .tooltip-text{visibility:visible;opacity:1}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#11182799;display:flex;align-items:flex-start;justify-content:center;z-index:1000;padding:1rem;overflow-y:auto;min-height:100vh}.modal{width:100%;max-width:720px;max-height:calc(100vh - 2rem);max-height:calc(100dvh - 2rem);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);display:flex;flex-direction:column;margin:.5rem 0;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--border-light);position:sticky;top:0;background:var(--bg-primary);z-index:1}.modal .form{flex:1 1 auto;overflow:auto;padding:1rem 1.25rem;min-height:0}.modal-actions{display:flex;justify-content:flex-end;gap:.75rem;padding-top:1rem;margin-top:.5rem;border-top:1px solid var(--border-light);position:sticky;bottom:0;background:var(--bg-primary);z-index:1;padding-bottom:max(env(safe-area-inset-bottom),.75rem)}.tabs{display:flex;flex-wrap:wrap;align-items:center;width:100%;gap:.5rem;background:var(--bg-tertiary);padding:.25rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:1rem}.tab{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;background:transparent;border:1px solid transparent;transition:all .2s ease;font-weight:500;white-space:nowrap}.tab:hover{background:var(--bg-secondary);color:var(--primary-color)}.tab.active{background:var(--bg-primary);color:var(--text-primary);border-color:var(--border-light);box-shadow:var(--shadow-sm)}