:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #e0e7ff;--bg: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-secondary: #64748b;--border: #e2e8f0;--success: #10b981;--warning: #f59e0b;--radius: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{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(--bg);color:var(--text);line-height:1.6}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:600}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}p{color:var(--text-secondary);margin-bottom:1rem}a{color:var(--primary);text-decoration:none;transition:color 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.75rem;border-radius:9999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.badge-free{background-color:#dcfce7;color:#166534}.tool-card{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;cursor:pointer;transition:all .3s;display:flex;flex-direction:column;gap:1rem;text-decoration:none;color:inherit}.tool-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-md)}.tool-card-icon{font-size:2.5rem}.tool-card h3{color:var(--text);margin:0}.tool-card p{margin:0;font-size:.9rem;color:var(--text-secondary)}.tool-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.score-display{text-align:center;margin:2rem 0}.score-circle{width:120px;height:120px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;font-size:2rem;font-weight:700;color:#fff}.score-circle.excellent{background-color:var(--success)}.score-circle.good{background-color:#3b82f6}.score-circle.fair{background-color:var(--warning)}.score-circle.poor{background-color:#ef4444}.score-rating{font-size:1.25rem;font-weight:600;color:var(--text);margin-bottom:.5rem}.tips-list{margin-top:2rem}.tips-list h4{margin-bottom:1rem;color:var(--text)}.tips-item{display:flex;gap:1rem;margin-bottom:.75rem;padding:.75rem;background-color:var(--bg);border-radius:8px;align-items:flex-start}.tips-item svg{flex-shrink:0;width:20px;height:20px;margin-top:2px}.tips-item.success svg{color:var(--success)}.tips-item.warning svg{color:var(--warning)}.tips-item.info svg{color:var(--primary)}.tips-item p{margin:0;font-size:.95rem}.back-button{display:inline-flex;align-items:center;gap:.5rem;color:var(--primary);font-weight:500;margin-bottom:1.5rem;cursor:pointer;transition:all 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0}.stat-card{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;text-align:center}.stat-value{font-size:2rem;font-weight:700;color:var(--primary);margin-bottom:.5rem}.stat-label{font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.preview-card{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.preview-image{width:100%;height:200px;background-color:var(--bg);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:.875rem}.preview-content{padding:1rem}.preview-url{font-size:.75rem;color:#0ea5e9;text-transform:uppercase;margin-bottom:.5rem}.preview-title{font-weight:600;color:var(--text);margin-bottom:.5rem;word-break:break-word}.preview-description{font-size:.875rem;color:var(--text-secondary);line-height:1.4;word-break:break-word}.reading-time{color:var(--text-secondary);font-size:.875rem}