:root{--primary: #4f46e5;--primary-hover: #4338ca;--bg-color: #f3f4f6;--card-bg: #ffffff;--text-main: #111827;--text-secondary: #4b5563;--border-color: #e5e7eb;--success: #10b981;--danger: #ef4444;--shadow: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}*{box-sizing:border-box}body{font-family:Inter,sans-serif;background-color:var(--bg-color);margin:0;padding:20px;display:flex;justify-content:center;align-items:center;min-height:100vh;color:var(--text-main)}.container{background-color:var(--card-bg);padding:2rem;border-radius:1rem;box-shadow:var(--shadow);width:100%;max-width:800px;transition:transform .2s}h1{text-align:center;color:var(--text-main);margin-bottom:2rem;font-weight:700;letter-spacing:-.025em}form{display:flex;flex-direction:column;gap:1.5rem}label{font-weight:500;color:var(--text-secondary);font-size:.95rem}textarea{width:100%;padding:1rem;border:2px solid var(--border-color);border-radius:.5rem;font-family:inherit;font-size:1rem;resize:vertical;min-height:200px;transition:border-color .2s,box-shadow .2s}textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}button{background-color:var(--primary);color:#fff;padding:1rem;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s,transform .1s;display:flex;justify-content:center;align-items:center;gap:.5rem}button:hover{background-color:var(--primary-hover)}button:active{transform:translateY(1px)}button:disabled{opacity:.7;cursor:not-allowed}.result-card{margin-top:2rem;padding:1.5rem;border-radius:.5rem;background-color:#f9fafb;border:1px solid var(--border-color);animation:slideUp .4s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.result-header{font-size:1.25rem;font-weight:700;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.biased-header{color:var(--danger)}.unbiased-header{color:var(--success)}.explanation{color:var(--text-secondary);line-height:1.6;margin-bottom:1.5rem}.confidence-section{margin-top:1rem}.confidence-label{display:flex;justify-content:space-between;font-size:.875rem;color:var(--text-secondary);margin-bottom:.5rem}.progress-bar-bg{width:100%;height:8px;background-color:#e5e7eb;border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;border-radius:4px;transition:width 1s ease-out}.progress-biased{background-color:var(--danger)}.progress-unbiased{background-color:var(--success)}.spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:640px){.container{padding:1.5rem}h1{font-size:1.5rem}}