.tool-container{max-width:720px;margin:40px auto;padding:20px}h1{font-size:2.5rem;font-weight:700;margin-bottom:12px;color:var(--text-primary)}.tool-subtitle{font-size:1.1rem;color:var(--text-secondary);margin-bottom:40px;line-height:1.6}#tool-area{background:var(--bg-tool);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:30px;margin-bottom:40px}.tool-section{margin-bottom:24px}.tool-label{display:block;font-weight:600;color:var(--text-primary);margin-bottom:8px;font-size:.95rem}.tool-textarea{width:100%;padding:12px 14px;background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:8px;color:var(--text-primary);font-family:DM Sans,system-ui,sans-serif;font-size:.95rem;line-height:1.6;resize:vertical}.tool-textarea:focus{outline:none;border-color:var(--accent-primary);background:#e85d3a0d}.tool-select{width:100%;padding:12px 14px;background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:8px;color:var(--text-primary);font-family:DM Sans,system-ui,sans-serif;font-size:.95rem;cursor:pointer}.tool-select:focus{outline:none;border-color:var(--accent-primary);background:#e85d3a0d}.tool-button{background:var(--accent-primary);color:#fff;border:none;padding:12px 32px;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .3s ease}.tool-button:hover{background:#5828c1;transform:translateY(-2px)}.tool-button:active{transform:translateY(0)}#results-section{margin-bottom:40px}#results-section.hidden{display:none}.results-tabs{display:flex;gap:12px;margin-bottom:24px;border-bottom:1px solid rgba(255,255,255,.06);flex-wrap:wrap}.tab-btn{background:transparent;border:none;color:var(--text-secondary);padding:12px 16px;cursor:pointer;font-weight:500;border-bottom:2px solid transparent;transition:all .3s ease;font-size:.95rem}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}.response-card{background:var(--bg-tool);border:1px solid rgba(255,255,255,.06);border-radius:12px;padding:24px;margin-bottom:24px}.response-card.hidden{display:none}.response-card.chatgpt-card{border-left:4px solid #10a37f}.response-card.claude-card{border-left:4px solid #d4a574}.response-card.gemini-card{border-left:4px solid #4285f4}.response-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.response-header h3{margin:0;color:var(--text-primary);font-size:1.1rem}.model-badge{font-size:.8rem;font-weight:600;padding:4px 12px;border-radius:20px;background:#ffffff1a;color:var(--text-secondary)}.chatgpt-badge{background:#10a37f26;color:#10a37f}.claude-badge{background:#d4a57426;color:#d4a574}.gemini-badge{background:#4285f426;color:#4285f4}.response-content{color:var(--text-primary);line-height:1.8;font-size:.95rem;margin-bottom:16px;white-space:pre-wrap;word-wrap:break-word}.response-content strong{color:var(--text-primary)}.response-content ul{margin-left:20px;margin-bottom:12px}.response-content li{margin-bottom:6px}.copy-btn{background:#e85d3a33;border:1px solid var(--accent-primary);color:var(--accent-primary);padding:8px 16px;border-radius:6px;font-weight:600;cursor:pointer;font-size:.9rem;transition:all .3s ease}.copy-btn:hover{background:var(--accent-primary);color:#fff}.copy-check{color:var(--accent-success)}.copy-check.hidden,.copy-text.hidden{display:none}.simulation-notice{background:#f59e0b1a;border-left:4px solid #f59e0b;color:var(--text-primary);padding:16px;border-radius:8px;margin-top:24px;font-size:.95rem;line-height:1.6}.seo-content{color:var(--text-primary);line-height:1.8;font-size:.95rem}.seo-content h2{font-size:1.5rem;font-weight:700;margin-top:40px;margin-bottom:16px;color:var(--text-primary)}.seo-content h3{font-size:1.2rem;font-weight:600;margin-top:24px;margin-bottom:12px;color:var(--text-primary)}.seo-content p{margin-bottom:16px;color:var(--text-secondary)}.seo-content ul{margin-left:20px;margin-bottom:16px}.seo-content li{margin-bottom:8px;color:var(--text-secondary)}.seo-content a{color:var(--accent-secondary);text-decoration:none}.seo-content a:hover{text-decoration:underline}@media(max-width:640px){h1{font-size:1.8rem}#tool-area{padding:20px}.results-tabs{gap:8px}.tab-btn{padding:10px 12px;font-size:.85rem}.response-card{padding:16px}.seo-content h2{font-size:1.3rem}.seo-content h3{font-size:1.05rem}}