.landing-page{display:flex;flex-direction:column;height:100%;overflow-y:auto;position:relative}.landing-message-area{flex-grow:1;display:flex;flex-direction:column;justify-content:flex-end;max-height:40dvh;min-height:160px;overflow-y:auto;padding:20px 0}.landing-greeting-container{display:flex;flex-direction:column;align-items:center;width:100%;margin:0 auto}.landing-greeting{font-size:2.2rem;font-weight:600;color:var(--text-color, #1a1a1a);margin:0 0 8px;line-height:1.2;text-align:center}.landing-sub-greeting{font-size:1.1rem;font-weight:400;color:var(--text-color, #1a1a1a);opacity:.7;margin:0 0 8px;line-height:1.4;text-align:center}.landing-example-prompts{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:0 20px;margin:0 auto;flex-shrink:0}.landing-greeting.routing-greeting{font-size:1.4rem;font-weight:500;opacity:.7;animation:routingGreetingFadeIn .3s ease-out}@keyframes 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.help-section-trigger{background-color:var(--sidebar-background);border-bottom:1px solid var(--border-color);border-radius:0;padding:16px 24px;width:100%}.help-icon{font-size:1.2rem;color:var(--primary-color, #2e8b57)}.help-chevron{font-size:.85rem;margin-left:4px}.feedback-icon-button{display:flex;align-items:center;justify-content:center;padding:10px;background:transparent;border:1px solid transparent;border-radius:50%;cursor:pointer;color:var(--primary-color, #2e8b57);font-size:1.2rem;transition:background .2s ease}.feedback-icon-button:hover{background-color:var(--sidebar-background);border:1px solid var(--border-color)}.help-section-content{padding:20px 32px 28px;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.help-section-content p{font-size:.95rem;line-height:1.6;margin:0 0 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ease;background:var(--background-color);text-align:center}.gpt-tile:hover{border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.gpt-tile.edit-mode{cursor:default}.gpt-tile.edit-mode:hover{transform:none;box-shadow:none}.gpt-tile-image{width:80px;height:80px;border-radius:12px;object-fit:cover;margin-bottom:12px}.gpt-tile-name{font-weight:600;color:var(--text-color);margin-bottom:4px}.gpt-tile-description{font-size:.85rem;color:var(--text-color);opacity:.7}.gpt-group-header{width:100%;text-align:center;margin:30px 0 15px;font-size:1.2rem;font-weight:600;color:var(--text-color)}.gpt-group-header:first-child{margin-top:0}.spinner-parent{display:flex;justify-content:center;align-items:center}.logo-spinner{animation:spin 1s linear infinite}.centered-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50dvh}@media(max-width:768px){.landing-message-area{padding:15px 0 0;min-height:120px}.landing-greeting-container{width:90%}.landing-greeting{font-size:1.2rem}.landing-sub-greeting{font-size:.75rem;margin:0 0 5px}.landing-example-prompts{padding:0 10px;gap:6px}.bottom-actions-row{flex-direction:row;align-items:center;justify-content:center;gap:6px;margin:20px auto}.help-section.expanded .help-section-trigger{padding:12px 20px}.help-section-content{padding:16px 20px 24px}.help-buttons{flex-direction:column;align-items:center}.help-button{width:100%;max-width:250px;justify-content:center}.version-link{position:static;text-align:center;padding:20px}.landing-page-container{padding:15px}.landing-page-container h1{font-size:1.3rem}.gpt-tiles-container{gap:12px}.gpt-tile{width:140px;padding:15px}.gpt-tile-image{width:60px;height:60px}.announcement-popup{max-width:90dvw;max-height:80dvh;overflow-y:auto}}.dark-mode .landing-greeting,.dark-mode .landing-sub-greeting{color:var(--text-color, #f0f0f0)}.dark-mode .chat-example-prompt-btn{background-color:var(--sidebar-background, #2a2a2a);border-color:var(--border-color, #444);color:var(--text-color, #f0f0f0)}.dark-mode .chat-example-prompt-btn:hover{background-color:var(--background-color, #333);border-color:var(--border-color, #555)}.dark-mode .gpt-tile{background:var(--sidebar-background)}.dark-mode .help-section.expanded{background:var(--sidebar-background);border-color:var(--border-color)}.dark-mode .help-section.expanded .help-section-trigger{background-color:var(--sidebar-background);border-bottom-color:var(--border-color)}.announcement-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:announceFadeIn .2s ease-out}@keyframes announceFadeIn{0%{opacity:0}to{opacity:1}}.announcement-popup{background:var(--background-color);border:1px solid 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h3{margin:0;font-size:1em;font-weight:500;color:var(--text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.top-bar>.chat-title{margin:0;font-size:1em;font-weight:500;color:var(--text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.assistant-name{font-size:.9em;font-weight:600;color:var(--text-color);opacity:.8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px;padding:4px 8px;background-color:var(--hover-item-background);border-radius:4px;border:1px solid var(--border-color)}.top-bar h2{margin:0;font-size:1.5em}.icon-button,.settings-button,.close-button{background:transparent;border:none;cursor:pointer;padding:8px;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:1.5em;color:var(--text-color);transition:all .2s 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solid var(--border-color)}.confirm-modal-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:8px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s ease}.confirm-modal-btn:disabled{opacity:.6;cursor:not-allowed}.confirm-modal-btn.cancel{background:var(--background-color);border:1px solid var(--border-color);color:var(--text-color)}.confirm-modal-btn.cancel:hover:not(:disabled){background:var(--hover-item-background)}.confirm-modal-btn.primary{background:var(--primary-color, #2e8b57);border:1px solid var(--primary-color, #2e8b57);color:#fff}.confirm-modal-btn.primary:hover:not(:disabled){filter:brightness(1.1)}.confirm-modal-btn.danger{background:#dc3545;border:1px solid #dc3545;color:#fff}.confirm-modal-btn.danger:hover:not(:disabled){background:#c82333}.confirm-modal-btn.warning{background:#f39c12;border:1px solid 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