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h2{color:#333;margin-bottom:1.5rem;font-size:2rem}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.feature-card{background:#fff;border-radius:15px;padding:2rem;box-shadow:0 10px 30px #0000001a;text-align:center;transition:all .3s}.feature-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #00000026}.feature-card h3{color:#764ba2;margin-bottom:1rem;font-size:1.5rem}.feature-card p{color:#666;font-size:1.1rem}@media(max-width:768px){.hero h1{font-size:2.2rem}.phase-card{flex-direction:column;text-align:center}.btn-primary{width:100%}}.db-test{max-width:1200px;margin:0 auto;padding:20px}.db-test h1{color:#333;margin-bottom:2rem;text-align:center;font-size:2.5rem}.db-status-card{background:#fff;border-radius:15px;padding:2rem;margin-bottom:2rem;box-shadow:0 10px 30px #0000001a;transition:transform .3s ease}.db-status-card:hover{transform:translateY(-5px)}.db-status-card h2{color:#333;margin-bottom:1.5rem;font-size:1.5rem;border-bottom:2px solid #f0f0f0;padding-bottom:.5rem}.status-indicator{display:flex;align-items:center;margin-bottom:1rem;padding:1rem;background:#f8f9fa;border-radius:10px}.status-dot{width:16px;height:16px;border-radius:50%;margin-right:12px}.status-dot.checking{background-color:#f39c12;animation:pulse 1.5s infinite}.status-dot.connected{background-color:#2ecc71;box-shadow:0 0 10px #2ecc7180}.status-dot.error{background-color:#e74c3c;box-shadow:0 0 10px #e74c3c80}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.7}to{transform:scale(1);opacity:1}}.status-text{font-weight:600;font-size:1.2rem}.message-form-card{background:#fff;border-radius:15px;padding:2rem;margin-bottom:2rem;box-shadow:0 10px 30px #0000001a}.message-form-card h2{color:#333;margin-bottom:1.5rem;font-size:1.5rem}.message-form-card form{display:flex;gap:1rem}.message-input{flex:1;padding:1rem;border:2px solid 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h2{color:#333;margin-bottom:1.5rem;font-size:1.5rem}.messages-list{display:flex;flex-direction:column;gap:1rem;max-height:400px;overflow-y:auto;padding-right:10px}.messages-list::-webkit-scrollbar{width:8px}.messages-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:10px}.messages-list::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:10px}.message-item{background:#f8f9fa;padding:1.2rem;border-radius:10px;border-left:4px solid #764ba2;transition:transform .2s}.message-item:hover{transform:translate(5px)}.message-content{color:#333;margin-bottom:.5rem;font-weight:500;font-size:1.1rem}.message-time{color:#666;font-size:.9rem}.no-messages{color:#666;text-align:center;padding:3rem;background:#f8f9fa;border-radius:10px;font-style:italic;font-size:1.1rem}.info-card{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:15px;padding:2rem;color:#fff;box-shadow:0 10px 30px #0003}.info-card h3{margin-bottom:1.5rem;font-size:1.3rem;border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:.5rem}.info-card p{margin:.8rem 0;padding-left:1rem;border-left:3px solid rgba(255,255,255,.5)}.success-message{background:#d4edda;color:#155724;padding:1rem;border-radius:10px;margin-top:1rem;border:1px solid #c3e6cb;animation:slideIn .3s ease}.error-message{background:#f8d7da;color:#721c24;padding:1rem;border-radius:10px;margin-top:1rem;border:1px solid #f5c6cb;animation:slideIn .3s ease}@keyframes slideIn{0%{transform:translateY(-20px);opacity:0}to{transform:translateY(0);opacity:1}}@media(max-width:768px){.message-form-card form{flex-direction:column}.btn-submit{width:100%}.db-test h1{font-size:2rem}}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(prefers-reduced-motion:no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.navbar{background:#fff;padding:1rem 2rem;box-shadow:0 2px 10px #0000001a;display:flex;justify-content:space-between;align-items:center}.nav-brand a{font-size:1.5rem;font-weight:700;color:#764ba2;text-decoration:none}.nav-links{display:flex;gap:2rem}.nav-links a{color:#333;text-decoration:none;font-weight:500;transition:color .3s}.nav-links a:hover{color:#764ba2}.main-content{flex:1;padding:2rem}.footer{background:#fff;text-align:center;padding:1rem;color:#666;border-top:1px solid #e0e0e0}