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40%;width:40%;min-width:320px;max-width:40%;height:100%}.right-section{flex:1 1 60%;width:60%;height:100%;min-width:0;padding-left:20px}@media (max-width: 768px){.App{padding:10px}.App-header h1{font-size:2rem}.main-container{flex-direction:column;height:auto;gap:15px;padding-left:20px}.chat-section{width:100%;min-width:unset;height:500px}.right-section{width:100%;height:400px;padding-left:0}}@media (max-width: 1024px){.main-container{max-width:100%;padding-left:60px;padding-right:10px}.chat-section{min-width:300px}}.auth-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:20px}.loading-spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.auth-loading p{color:#4a5568;font-size:16px;margin:0}.single-tab-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at top left,rgba(74,124,89,.22),transparent 34%),radial-gradient(circle at bottom right,rgba(45,90,74,.18),transparent 32%),linear-gradient(135deg,#f6f7f1,#dde7dd 48%,#cfdccf)}.single-tab-card{width:min(560px,100%);padding:40px;border-radius:28px;background:#ffffffdb;border:1px solid rgba(45,90,74,.12);box-shadow:0 24px 60px #1a332a29;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);text-align:left}.single-tab-card h1{margin:18px 0 16px;font-size:clamp(2rem,4vw,2.9rem);line-height:1.05;color:#1d3a30}.single-tab-card p{margin:0 0 14px;color:#355349;font-size:1rem}.single-tab-badge{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;background:#2d5a4a1a;color:#2d5a4a;font-size:.9rem;font-weight:700;letter-spacing:.02em}.single-tab-actions{display:flex;gap:12px;margin-top:28px}.single-tab-primary-button{min-height:48px;padding:0 20px;border-radius:14px;font-size:.98rem;font-weight:700}.single-tab-primary-button{background:#234739;color:#f7fbf8}.single-tab-primary-button:hover{border-color:#234739}@media (max-width: 640px){.single-tab-card{padding:28px 22px}.single-tab-actions{flex-direction:column}}