@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*{box-sizing:border-box;margin:0;padding:0}body{color:#e2e8f0;background:#0f1117;min-height:100vh;font-family:Inter,Arial,sans-serif}.app{min-height:100vh}.header{background:linear-gradient(135deg,#1a1f2e 0%,#0f1117 100%);border-bottom:1px solid #2d3748;padding:24px 40px}.header-content{align-items:center;gap:16px;max-width:900px;margin:0 auto;display:flex}.header-icon{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:56px;height:56px;font-size:32px;display:flex}.header h1{color:#f7fafc;margin-bottom:4px;font-size:22px;font-weight:700}.header p{color:#94a3b8;font-size:14px}.container{flex-direction:column;gap:20px;max-width:900px;margin:36px auto;padding:0 20px;display:flex}.card{background:#1a1f2e;border:1px solid #2d3748;border-radius:16px;padding:28px 32px}.card h2{color:#f1f5f9;margin-bottom:8px;font-size:20px;font-weight:600}.card h3{color:#f1f5f9;margin-bottom:14px;font-size:16px;font-weight:600}.subtitle{color:#64748b;margin-bottom:16px;font-size:14px;line-height:1.6}textarea{color:#e2e8f0;resize:vertical;background:#0f1117;border:1px solid #374151;border-radius:10px;width:100%;min-height:130px;margin-bottom:16px;padding:14px 16px;font-family:inherit;font-size:15px;transition:border-color .2s}textarea:focus{border-color:#667eea;outline:none;box-shadow:0 0 0 3px #667eea26}textarea::placeholder{color:#4a5568}.button-container{justify-content:flex-end;display:flex}button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:10px;padding:12px 28px;font-family:inherit;font-size:15px;font-weight:600;transition:opacity .2s,transform .1s}button:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-inner{align-items:center;gap:8px;display:flex}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;flex-shrink:0;width:16px;height:16px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-card{background:#1f1214;border-color:#f87171}.error-card h3{color:#f87171}.error-card p,.error-text{color:#fca5a5;font-size:14px;line-height:1.6}.result-card{background:#0f1f14;border-color:#4ade80;animation:.3s fadeIn}.result-card h3{color:#4ade80}.result-text{color:#d1fae5;white-space:pre-wrap;font-size:15px;line-height:1.8}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.quick-tests h3{margin-bottom:12px}.chips{flex-wrap:wrap;gap:10px;display:flex}.chip{color:#94a3b8;cursor:pointer;background:#0f1117;border:1px solid #374151;border-radius:999px;padding:8px 16px;font-size:13px;font-weight:400;transition:border-color .2s,color .2s,background .2s}.chip:hover:not(:disabled){color:#a5b4fc;opacity:1;background:#667eea14;border-color:#667eea;transform:none}