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#e0e7ff;border-radius:8px;padding:15px;box-shadow:0 2px 4px #0000001a;transition:transform .2s,box-shadow .2s}.pinned-doc-card:hover{transform:translateY(-2px);box-shadow:0 4px 8px #00000026}.doc-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.pin-icon{font-size:20px}.btn-unpin{background:none;border:none;font-size:18px;color:#999;cursor:pointer;transition:color .2s}.btn-unpin:hover{color:#c33}.pinned-doc-card h4{margin:0 0 8px;color:var(--text);font-size:16px;line-height:1.4}.doc-source{margin:5px 0;font-size:13px;color:var(--accent);font-weight:600}.doc-pinned-date{margin:5px 0 0;font-size:12px;color:#999}.project-workspace-page{min-height:100vh;background:var(--bg)}.project-workspace{max-width:1080px;margin:0 auto;padding:40px 28px 72px;background:transparent;border-radius:0;box-shadow:none}.workspace-loading,.workspace-error{padding:40px;text-align:center;color:var(--text)}.workspace-error button{margin-top:20px;padding:10px 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var(--paper)}.btn-chat:hover{background:#fff}.btn-edit{background:transparent;color:var(--text);border:1px solid var(--line)}.btn-edit:hover{border-color:var(--muted)}.workspace-tabs{display:flex;gap:8px;margin-bottom:30px;border-bottom:1px solid var(--line)}.workspace-tabs .tab{padding:12px 4px;margin-right:20px;background:none;border:none;border-bottom:2px solid transparent;font-size:14px;font-weight:500;cursor:pointer;color:var(--muted)}.workspace-tabs .tab:hover{background:none;color:var(--text)}.workspace-tabs .tab.active{color:var(--text);border-bottom-color:var(--accent);background:none}.workspace-content{min-height:500px}.tab-content{animation:fadeIn .3s}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-redirect{text-align:center;padding:60px 20px}.chat-redirect h2{margin:0 0 15px;color:var(--text);font-family:var(--serif);font-weight:500}.chat-redirect p{color:var(--muted);margin-bottom:30px}.btn-primary-large{padding:15px 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var(--line)}.feedback-header h3{margin:0 0 8px;font-size:18px;font-weight:600;color:var(--text)}.feedback-header p{margin:0;font-size:13px;color:var(--muted)}.feedback-error{background:#fee;border-left:4px solid #f44;color:#c33;padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:13px;display:flex;align-items:center;gap:8px}.feedback-error:before{content:"⚠️";font-size:14px}.feedback-success{background:#efe;border-left:4px solid #4f4;color:#3a3;padding:12px 16px;border-radius:6px;margin-bottom:16px;font-size:13px;display:flex;align-items:center;gap:8px}.feedback-success:before{content:"✓";font-weight:700;font-size:14px}.feedback-types{display:flex;flex-direction:column;gap:12px}.feedback-type{background:var(--bg-raised);border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:all .2s ease}.feedback-type:hover{border-color:#d0d0d0;box-shadow:0 2px 8px #0000000d}.feedback-type.expanded{border-color:var(--accent);box-shadow:0 4px 12px 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16px;font-size:13px;color:var(--muted)}.reaction-buttons{display:flex;gap:12px}.reaction-btn{flex:1;padding:12px 16px;border:2px solid var(--line);border-radius:8px;background:var(--bg-raised);cursor:pointer;font-size:13px;font-weight:500;color:var(--text);transition:all .2s ease}.reaction-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);background:#f5f7ff}.reaction-btn:disabled{opacity:.6;cursor:not-allowed}.reaction-btn.thumbs-up{--emoji: "👍"}.reaction-btn.thumbs-down{--emoji: "👎"}.rating-stars{display:flex;gap:8px;margin-bottom:12px}.rating-star{width:44px;height:44px;padding:0;border:2px solid var(--line);border-radius:8px;background:var(--bg-raised);cursor:pointer;font-size:22px;color:#ddd;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.rating-star:hover:not(:disabled){border-color:#ffc107;color:#ffc107;background:#fffef5;transform:scale(1.1)}.rating-star.hovered{border-color:#ffc107;color:#ffc107;background:#fffef5}.rating-star:disabled{opacity:.6;cursor:not-allowed}.rating-label{text-align:center;font-size:13px;color:#ffc107;font-weight:500;margin:0}.relevance-options{display:flex;flex-direction:column;gap:8px}.relevance-option{padding:12px 16px;border:2px solid var(--line);border-radius:8px;background:var(--bg-raised);cursor:pointer;text-align:left;transition:all .2s 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24px;background:var(--paper);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;transition:all .2s ease}.submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.submit-btn:disabled{opacity:.6;cursor:not-allowed}@media(max-width:768px){.feedback-panel{padding:16px}.reaction-buttons{flex-direction:column}.rating-stars{gap:6px}.rating-star{width:40px;height:40px;font-size:18px}.feedback-type-header{flex-wrap:wrap}.feedback-type-status{flex-basis:100%;text-align:left;margin-top:4px}}@media(prefers-color-scheme:dark){.feedback-panel{background:#2a2a2a;border-color:#444}.feedback-header{border-bottom-color:#444;color:#fff}.feedback-header p{color:var(--faint)}.feedback-type{background:#333;border-color:#444}.feedback-type:hover{border-color:var(--muted)}.feedback-type-header{background:#333;color:#fff}.feedback-type-header:hover:not(:disabled){background:#3a3a3a}.feedback-type-content{border-top-color:#444}.feedback-type-content>p{color:var(--faint)}.reaction-btn,.rating-star,.relevance-option{background:#3a3a3a;border-color:#444;color:#fff}.reaction-btn:hover:not(:disabled),.rating-star:hover:not(:disabled){background:#444}.feedback-textarea{background:#3a3a3a;border-color:#444;color:#fff}.feedback-textarea::placeholder{color:var(--muted)}}