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.mobile-nav-item{background:transparent;border:none;color:#71717a;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;transition:color .2s ease}.mobile-bottom-nav .mobile-nav-item.active{color:#0070f3}.mobile-bottom-nav .mobile-nav-item.fab{background:#0070f3;color:#fff;width:40px;height:40px;border-radius:50%;box-shadow:0 4px 12px #0070f34d}.mobile-bottom-nav .mobile-nav-item.fab:active{transform:scale(.95)}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:1000}.modal-overlay .create-post-modal{background:#12121680;border:1px solid rgba(255,255,255,.06);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:24px;border-radius:16px;width:400px;max-width:90vw;color:#f4f4f5;box-shadow:0 8px 32px #0006;box-sizing:border-box}.modal-overlay .create-post-modal h2{margin-top:0;margin-bottom:20px;font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.modal-overlay .create-post-modal .form-group{margin-bottom:16px}.modal-overlay .create-post-modal .form-group label{display:block;margin-bottom:8px;font-weight:500;font-size:.9rem;color:#a1a1aa}.modal-overlay .create-post-modal .form-group input[type=file],.modal-overlay .create-post-modal .form-group textarea{width:100%;padding:10px;background:#ffffff08;border:1px solid rgba(255,255,255,.06);border-radius:8px;color:#f4f4f5;box-sizing:border-box;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:border-color .2s ease,background-color .2s ease}.modal-overlay .create-post-modal .form-group input[type=file]:focus,.modal-overlay .create-post-modal .form-group textarea:focus{outline:none;border-color:#0070f3;background:#ffffff0d}.modal-overlay .create-post-modal .form-group textarea{min-height:100px;resize:vertical}.modal-overlay .create-post-modal .modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.modal-overlay .create-post-modal .modal-actions button{padding:10px 18px;border-radius:8px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s ease}.modal-overlay .create-post-modal .modal-actions button.btn-cancel{background:transparent;border:1px solid rgba(255,255,255,.06);color:#f4f4f5}.modal-overlay .create-post-modal .modal-actions button.btn-cancel:hover{background:#ffffff0d}.modal-overlay .create-post-modal .modal-actions button.btn-submit{background:#0070f3;border:none;color:#fff;box-shadow:0 4px 12px #0070f333}.modal-overlay .create-post-modal .modal-actions button.btn-submit:hover:not(:disabled){background:#2563eb;box-shadow:0 6px 16px #2563eb4d}.modal-overlay .create-post-modal .modal-actions button.btn-submit:disabled{opacity:.6;cursor:not-allowed}@keyframes ringPulse{0%{box-shadow:0 0 #0070f333}70%{box-shadow:0 0 0 4px #0070f300}to{box-shadow:0 0 #0070f300}}@media(max-width:768px){.mobile-top-header{display:flex}.feed-layout{grid-template-columns:1fr;padding-bottom:64px}.left-sidebar{display:none}.main-content{padding:12px 0}.mobile-bottom-nav{display:flex}}