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a:hover{color:var(--link-hover-color);text-decoration:underline}.footer-separator{color:var(--text-color-secondary);opacity:.6}.chats-page{background:#fff;background:var(--card-bg,#fff);border-radius:12px;box-shadow:0 2px 16px #00000012;box-shadow:0 2px 16px var(--shadow-main,#00000012);margin:2rem auto;max-width:700px;padding:2rem 2rem 1rem}.chats-page h2{color:#01a29c;color:var(--primary,#01a29c);font-size:2rem;font-weight:700;margin-bottom:1.5rem}.tabs{gap:1rem;margin-bottom:1.5rem}.tabs button{background:#f5f7fa;background:var(--background-light,#f5f7fa);border:none;border-radius:8px 8px 0 0;color:#222;color:var(--text-main,#222);flex:1 1;font-size:1.1rem;font-weight:600;padding:.75rem 0;transition:background .2s,color .2s}.tabs button.active{background:#01a29c;background:var(--primary,#01a29c);color:#fff}.tabs button{background:var(--card-bg);border:1px solid var(--border);border-radius:6px;color:var(--text-main);cursor:pointer;margin-right:8px;padding:12px 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var(--shadow-light,#01a29c14)}.chat-title{color:#01a29c;color:var(--primary,#01a29c);font-size:1.1rem;font-weight:600}.chat-meta{color:#666;color:var(--label,#666);font-size:.95rem}.chat-preview{color:#222;color:var(--text-main,#222);font-size:1rem;margin-top:.2rem;opacity:.85}.chat-time{align-self:flex-end;color:#888;color:var(--label,#888);font-size:.85rem}.chat-detail-page{background:#fff;background:var(--card-bg,#fff);border-radius:12px;box-shadow:0 2px 16px #00000012;box-shadow:0 2px 16px var(--shadow-main,#00000012);color:#222;color:var(--text-main,#222);display:flex;flex-direction:column;height:70vh;margin:2rem auto;max-width:700px;padding:2rem 2rem 1rem}.chat-banner{box-shadow:0 1px 4px var(--shadow-light,#0000000a);flex-shrink:0}.chat-messages-container{height:100%;position:relative}.chat-messages,.chat-messages-container{display:flex;flex:1 1 auto;flex-direction:column;min-height:0}.chat-messages{gap:.7rem;max-height:100%;overflow-y:auto;padding-bottom:1rem;scroll-behavior:smooth}.my-message,.their-message{border-radius:18px;box-shadow:0 1px 4px #0000000a;font-size:1.05rem;margin-bottom:.2rem;max-width:70%;padding:.7rem 1.1rem;position:relative;word-break:break-word}.my-message{align-self:flex-end;background:linear-gradient(135deg,#01a29c 80%,#018b7e);background:linear-gradient(135deg,var(--primary,#01a29c) 80%,#018b7e 100%);border-bottom-left-radius:18px;border-bottom-right-radius:4px;box-shadow:0 2px 8px #01a29c1a;color:#fff;font-weight:500;margin-left:20%;margin-right:0}.my-message,.their-message{border-top-left-radius:18px;border-top-right-radius:18px}.their-message{align-self:flex-start;background:#f5f7fa;background:var(--background-light,#f5f7fa);border-bottom-left-radius:4px;border-bottom-right-radius:18px;box-shadow:0 1px 4px #0000000a;box-shadow:0 1px 4px var(--shadow-light,#0000000a);color:#222;color:var(--text-main,#222);font-weight:400;margin-left:0;margin-right:20%}.msg-meta{color:#bbb;color:var(--text-secondary,#bbb);font-size:.85rem;margin-bottom:.2rem}.my-message .msg-meta{color:#e0f7f5}.msg-content{font-size:1.08rem;line-height:1.5}.chat-input-form{align-items:flex-end;box-shadow:0 1px 4px #0000000a;box-shadow:0 1px 4px var(--shadow-light,#0000000a);display:flex;flex-shrink:0;gap:.7rem;margin-top:1rem;padding:1rem .5rem}.chat-input-form,.chat-input-form textarea{background:#f5f7fa;background:var(--background-light,#f5f7fa);border:1px solid #e0e0e0;border:1px solid var(--input-border,#e0e0e0);border-radius:8px}.chat-input-form textarea{color:#222;color:var(--text-main,#222);flex:1 1;font-size:1.05rem;padding:.7rem 1rem;resize:none;transition:border .2s}.chat-input-form textarea:focus{border:1.5px solid #01a29c;border:1.5px solid var(--primary,#01a29c);outline:none}.chat-input-form button{background:#01a29c;background:var(--primary,#01a29c);border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1.05rem;font-weight:600;padding:.7rem 1.5rem;transition:background .2s}.chat-input-form button:disabled{background:#b2dfdb;color:#fff;cursor:not-allowed}.error-message{background:#fff0f0;border:1px solid #ffcdd2;border-radius:8px;color:#d32f2f;font-size:1.05rem;margin:1rem 0;padding:.7rem 1.2rem}body[data-theme=dark] .chat-detail-page,body[data-theme=dark] .chats-page{background:#1a2327;background:var(--background-secondary,#1a2327);box-shadow:0 2px 16px #01a29c1f;color:#e0f7fa;color:var(--text,#e0f7fa)}body[data-theme=dark] .chat-summary{background:#232c31;background:var(--background,#232c31);border:1px solid #263238;border:1px solid var(--border,#263238)}body[data-theme=dark] .chat-summary:hover{background:#014d4a;background:var(--primary-dark,#014d4a)}body[data-theme=dark] .chat-title{color:#4dd0e1;color:var(--primary,#4dd0e1)}body[data-theme=dark] .chat-meta,body[data-theme=dark] .chat-time{color:#b2dfdb;color:var(--text-secondary,#b2dfdb)}body[data-theme=dark] .chat-preview{color:#e0f7fa;color:var(--text,#e0f7fa)}body[data-theme=dark] .my-message{background:linear-gradient(135deg,#01a29c 80%,#014d4a);background:linear-gradient(135deg,var(--primary,#01a29c) 80%,#014d4a 100%);color:#fff}body[data-theme=dark] .msg-meta{color:#b2dfdb}body[data-theme=dark] .chat-input-form textarea{background:#1a1a1a;background:var(--background-light,#1a1a1a);border:1px solid #404040;border:1px solid var(--input-border,#404040);color:#e0e0e0;color:var(--text-main,#e0e0e0)}body[data-theme=dark] .chat-input-form textarea:focus{border:1.5px solid #4dd0e1;border:1.5px solid var(--primary,#4dd0e1)}body[data-theme=dark] .chat-input-form button{background:#4dd0e1;background:var(--primary,#4dd0e1);color:#222}body[data-theme=dark] .chat-input-form button:disabled{background:#263238;color:#b2dfdb}body[data-theme=dark] .error-message{background:#2d2323;border:1px solid #b71c1c;color:#ffbdbd}.chat-banner{align-items:center;background:#f5f7fa;background:var(--background-light,#f5f7fa);border:1px solid #e0e0e0;border:1px solid var(--input-border,#e0e0e0);border-radius:8px;box-shadow:0 1px 4px #0000000a;display:flex;flex-direction:column;margin-bottom:1.5rem;padding:1rem 1.5rem;text-align:center}.chat-back-btn{font-size:1rem;margin-right:1rem;padding:.5rem 1.2rem}.chat-back-btn:hover{background:#018b7e;background:var(--primary-dark,#018b7e)}.chat-banner-details{align-items:flex-start;background:#0000;color:#222;color:var(--text-main,#222);display:flex;flex-direction:column;gap:.2rem;text-align:left;width:100%}.chat-banner-title{font-size:1.15rem;text-align:left}.chat-banner-meta{color:#666;color:var(--text-secondary,#666);font-size:1rem}body[data-theme=dark] .chat-back-btn{background:#4dd0e1;background:var(--primary,#4dd0e1);color:#222}body[data-theme=dark] .chat-back-btn:hover{background:#018b7e;color:#fff}body[data-theme=dark] .chat-banner-meta{color:#b2dfdb;color:var(--text-secondary,#b2dfdb)}.chat-banner-description{background:#0000;color:#222;color:var(--text-main,#222);font-size:1.02rem;font-style:italic;margin-top:.5rem;opacity:.95}.chat-banner-institute{align-items:center;color:var(--text-secondary,#666);display:flex;font-size:1rem;gap:.4rem}.institute-label{color:#01a29c;color:var(--primary,#01a29c);font-weight:500}.institute-name{font-weight:500}.verified-symbol{color:#43a047;font-size:1.1em;margin-left:.2em;vertical-align:middle}body[data-theme=dark] .chat-banner-description{background:#0000;color:#e0e0e0;color:var(--text-main,#e0e0e0)}body[data-theme=dark] .chat-banner-institute{color:#b2dfdb;color:var(--text-secondary,#b2dfdb)}body[data-theme=dark] .institute-label{color:#4dd0e1;color:var(--primary,#4dd0e1)}body[data-theme=dark] .verified-symbol{color:#80e27e}.chat-banner-institute,.chat-banner-status{color:#666;color:var(--label,#666);font-size:.9rem;margin-top:.3rem}.chat-banner-status{align-items:center;display:flex;gap:.5rem}.status-badge,.status-label{font-weight:500}.status-badge{border:none;border-radius:12px;cursor:pointer;font-size:.8rem;padding:.2rem .6rem;transition:all .2s}.status-badge.clickable:hover{opacity:.8;transform:translateY(-1px)}.status-edit-dropdown{align-items:center;display:flex;gap:.5rem}.status-edit-dropdown select{background:#fff;background:var(--card-bg,#fff);border:1px solid #e0e0e0;border:1px solid var(--input-border,#e0e0e0);border-radius:12px;color:#222;color:var(--text-main,#222);font-size:.8rem;padding:.2rem .6rem}.status-loading{color:#666;color:var(--label,#666);font-size:.8rem;font-style:italic}.status-error{color:#d32f2f;color:var(--error,#d32f2f);font-size:.8rem;margin-top:.2rem}@media (max-width:800px){.chat-detail-page{padding:.5rem .2rem}.chat-banner,.chat-input-form{padding-left:.5rem;padding-right:.5rem}}.chat-banner-row{align-items:center;display:flex;gap:1rem;margin-bottom:.2rem;width:100%}.chat-back-btn{align-items:center;background:#01a29c;background:var(--primary,#01a29c);border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;flex-shrink:0;font-size:.98rem;font-weight:600;height:auto;line-height:1.2;margin-right:.5rem;min-width:0;padding:.4rem .9rem;transition:background .2s}.chat-banner-title{color:#01a29c;color:var(--primary,#01a29c);flex:1 1 auto;font-size:1.08rem;font-weight:700;line-height:1.2;margin:0;word-break:break-word}body[data-theme=dark] .chat-banner-title{color:#4dd0e1;color:var(--primary,#4dd0e1)}@media (max-width:600px){.chat-back-btn{font-size:.93rem;padding:.35rem .7rem}.chat-banner-title{font-size:1rem}}body[data-theme=dark] .chat-detail-page{background:#2d2d2d;background:var(--card-bg,#2d2d2d);box-shadow:0 2px 16px #0000004d;box-shadow:0 2px 16px var(--shadow-main,#0000004d);color:#e0e0e0;color:var(--text-main,#e0e0e0)}body[data-theme=dark] .chat-banner{background:#1a1a1a;background:var(--background-light,#1a1a1a);border:1px solid #404040;border:1px solid var(--input-border,#404040);box-shadow:0 1px 4px #0003;box-shadow:0 1px 4px var(--shadow-light,#0003)}body[data-theme=dark] .chat-banner-details{background:#0000;color:#e0e0e0;color:var(--text-main,#e0e0e0)}body[data-theme=dark] .chat-input-form{border:1px solid #404040;border:1px solid var(--input-border,#404040)}body[data-theme=dark] .chat-input-form,body[data-theme=dark] .their-message{background:#1a1a1a;background:var(--background-light,#1a1a1a);box-shadow:0 1px 4px #0003;box-shadow:0 1px 4px var(--shadow-light,#0003)}body[data-theme=dark] .their-message{color:#e0e0e0;color:var(--text-main,#e0e0e0)}.chat-summary-withdrawn{background:#f7f7f7;border:1.5px dashed 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