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768px){.public-link-container{padding:15px}.link-title{font-size:2rem;flex-direction:column;gap:10px}.messages-container{min-height:300px;max-height:400px}.input-wrapper{flex-direction:column;gap:10px}.message-input,.send-button{width:100%}.input-footer{flex-direction:column;gap:5px;text-align:center}.new-messages-badge{font-size:.8rem;padding:6px 12px}}.messages-list::-webkit-scrollbar{width:6px}.messages-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.messages-list::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.messages-list::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.dashboard{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.google-signin-btn{width:100%;padding:12px 24px;background:#4285f4;color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:background-color .2s;margin:1rem 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4px rgba(0,0,0,.3)}.app-subtitle{font-size:1.2rem;color:#ffffffe6;margin:0;font-weight:300}.download-app-link{display:inline-block;margin-top:20px;padding:12px 24px;background:#fff3;color:#fff;text-decoration:none;border-radius:25px;font-size:1rem;font-weight:500;transition:all .3s ease;border:1px solid rgba(255,255,255,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.download-app-link:hover{background:#ffffff4d;transform:translateY(-2px);box-shadow:0 5px 15px #fff3}.dashboard-main{display:flex;flex-direction:column;gap:30px}.auth-section{display:flex;justify-content:center;align-items:center;min-height:400px}.auth-card{background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 40px #0000001a;text-align:center;max-width:500px;width:100%}.auth-card h2{color:#333;margin:0 0 20px;font-size:2rem}.auth-card p{color:#666;margin:0 0 30px;font-size:1.1rem}.input-group{margin-bottom:20px}.token-input{width:100%;padding:15px 20px;border:2px solid 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.2s}.retry-button:hover,.refresh-button:hover{background:#1976d2}.refresh-button:disabled{background:#ccc;cursor:not-allowed}