.unified-header{background:#fff;position:sticky;top:0;z-index:1000}.unified-header-content{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:0 1rem;position:relative}.unified-header-left{display:flex;align-items:center}.unified-header-logo{font-weight:700;font-size:1.1rem;color:#32506e;text-decoration:none}.unified-header-logo:hover{color:#1a3a52}.unified-header-center{position:absolute;left:50%;transform:translateX(-50%);font-weight:600;font-size:0.95rem;color:#333}.unified-header-right{display:flex;align-items:center;gap:0.75rem}.unified-header-link{color:#64748b;text-decoration:none;font-weight:500;font-size:0.875rem;padding:0.4rem 0.6rem;border-radius:6px;transition:all 0.2s ease}.unified-header-link:hover{color:#333;background:#f5f5f5}.unified-header-btn-primary{background:#2563eb;color:white;padding:0.4rem 0.75rem;border-radius:6px;font-weight:500;font-size:0.875rem;text-decoration:none;transition:all 0.2s ease}.unified-header-btn-primary:hover{background:#1d4ed8}.unified-header-btn-logout{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#dc2626;color:white;text-decoration:none;transition:all 0.2s ease}.unified-header-btn-logout:hover{background:#b91c1c}.unified-header-divider{height:1px;background:#e5e7eb}.ftb-feedback-section{display:flex;align-items:center;gap:0.5rem}.ftb-reaction-btn{background:none;border:1px solid #ddd;border-radius:50%;width:32px;height:32px;cursor:pointer;font-size:0.85rem;transition:all 0.2s;display:flex;align-items:center;justify-content:center}.ftb-reaction-btn:hover:not(:disabled){background:#f5f5f5;border-color:#ccc}.ftb-reaction-btn.active{background:#e8f4fd;border-color:#32506e}.ftb-reaction-btn:disabled{opacity:0.5;cursor:not-allowed}.ftb-comment-btn{background:none;border:1px solid #ddd;border-radius:6px;padding:0.3rem 0.5rem;cursor:pointer;font-size:0.85rem;transition:all 0.2s}.ftb-comment-btn:hover{background:#f5f5f5}.ftb-btn-fullscreen{background:none;border:1px solid #ddd;border-radius:6px;padding:0.4rem 0.6rem;cursor:pointer;font-size:0.85rem;color:#555;transition:all 0.2s}.ftb-btn-fullscreen:hover{background:#f5f5f5;border-color:#ccc}.ftb-author-pill{background:#32506e;color:#fff;padding:0.35rem 0.75rem;border-radius:20px;font-size:0.8rem;font-weight:500;text-decoration:none;transition:background 0.2s}.ftb-author-pill:hover{background:#1a3a52}.ftb-modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:2000;align-items:center;justify-content:center}.ftb-modal-overlay.show{display:flex}.ftb-modal-content{background:white;border-radius:12px;padding:1.5rem;width:90%;max-width:400px}.ftb-modal-title{font-size:1.1rem;font-weight:600;margin-bottom:1rem}.ftb-modal-input{width:100%;padding:0.75rem;border:1px solid #ddd;border-radius:8px;font-size:0.95rem;resize:vertical;min-height:80px;font-family:inherit}.ftb-modal-actions{display:flex;gap:0.75rem;margin-top:1rem;justify-content:flex-end}.ftb-modal-btn{padding:0.5rem 1rem;border-radius:6px;font-size:0.9rem;cursor:pointer;border:none}.ftb-modal-btn-cancel{background:#eee;color:#333}.ftb-modal-btn-submit{background:#32506e;color:white}.ftb-modal-btn:hover{opacity:0.9}.ftb-login-prompt{text-align:center;padding:1rem}.ftb-login-prompt a{color:#32506e;font-weight:500}@media (max-width:640px){.unified-header-content{padding:0 0.5rem}.unified-header-right{gap:0.5rem}.unified-header-link{padding:0.3rem 0.4rem;font-size:0.8rem}.unified-header-center{display:none}.ftb-feedback-section{gap:0.25rem}.ftb-reaction-btn{width:28px;height:28px}}