:root{--bg: #e8eef7;--panel: #f4f8fd;--muted: #c3d1e3;--text: #163257;--subtle: #567091;--accent: #005eb8;--accent-600: #004a90;--surface: #edf3fb;--surface-2: #e3ecf8}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,Arial,sans-serif}.app{height:100%;display:grid;grid-template-rows:auto 1fr auto}.topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--panel);border-bottom:1px solid var(--muted)}.brand-group{display:flex;align-items:center;gap:8px}.brand{font-weight:700;letter-spacing:.3px}.brand-sub{font-size:12px;opacity:.8}.controls{display:flex;gap:8px;align-items:center}.view-toggle{display:flex;background:var(--surface-2);border:1px solid var(--muted);border-radius:8px;overflow:hidden}.view-toggle button{background:transparent;border:none;color:var(--subtle);padding:6px 12px;cursor:pointer;font-size:13px;transition:all .2s;border-right:1px solid var(--muted)}.view-toggle button:last-child{border-right:none}.view-toggle button:hover{background:#005eb814}.view-toggle button.active{background:linear-gradient(180deg,var(--accent),var(--accent-600));color:#fff;font-weight:600}.controls input,.controls select,.controls button{height:32px}.controls .apikey{min-width:280px;background:var(--surface);border:1px solid var(--muted);border-radius:6px;color:var(--text);padding:0 10px}.controls .model{background:var(--surface);border:1px solid var(--muted);border-radius:6px;color:var(--text);padding:0 8px}.controls .reset{background:linear-gradient(180deg,var(--accent),var(--accent-600));border:1px solid var(--accent-600);border-radius:8px;color:#fff;padding:0 12px;cursor:pointer}.controls .reset:disabled{opacity:.6;cursor:default}.chat{padding:16px 16px 70px;overflow:auto;display:flex;flex-direction:column;gap:10px;position:relative}.empty{color:var(--subtle);text-align:center;margin-top:24px}.empty.unavailable{color:var(--subtle);opacity:.85;font-style:italic;padding:20px;line-height:1.6}.reset-floating,.feedback-floating{position:fixed;width:40px;height:40px;border-radius:50%;background:#fffffff2;border:1px solid var(--muted);color:var(--subtle);font-size:18px;cursor:pointer;transition:all .2s;box-shadow:0 2px 10px #0a23421f;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.reset-floating{bottom:80px;right:16px}.feedback-floating{bottom:80px}.feedback-floating:nth-of-type(2){right:64px}.feedback-floating:nth-of-type(3){right:112px}.reset-floating:hover,.feedback-floating:hover{background:var(--panel);color:var(--text);transform:scale(1.05)}.feedback-good{background:#4ade8033!important;border-color:#4ade80!important}.feedback-good:hover{background:#4ade804d!important}.feedback-neutral{background:#fbbf2433!important;border-color:#fbbf24!important}.feedback-neutral:hover{background:#fbbf244d!important}.feedback-neutral.active{background:#fbbf2466!important;border-color:#fbbf24!important}.reset-floating:disabled,.feedback-floating:disabled{opacity:.4;cursor:not-allowed;transform:scale(1)}.feedback-prompt{background:var(--panel);border:1px solid var(--muted);border-radius:12px;padding:16px;margin:16px 130px 16px 0;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.feedback-header{display:flex;align-items:center;gap:8px;margin-bottom:12px}.feedback-icon{font-size:20px}.feedback-title{font-size:14px;font-weight:600;color:var(--text)}.feedback-buttons{display:flex;gap:8px;flex-wrap:wrap}.feedback-btn{flex:1;min-width:120px;padding:10px 16px;border:2px solid;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;background:transparent}.feedback-btn.good{border-color:#4ade80;color:#4ade80}.feedback-btn.good:hover{background:#4ade8026;transform:translateY(-2px)}.feedback-btn.okay{border-color:#fbbf24;color:#fbbf24}.feedback-btn.okay:hover{background:#fbbf2426;transform:translateY(-2px)}.feedback-btn.bad{border-color:#f87171;color:#f87171}.feedback-btn.bad:hover{background:#f8717126;transform:translateY(-2px)}.feedback-detail{display:flex;flex-direction:column;gap:12px;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.feedback-prompt-text{margin:0;font-size:14px;color:var(--text);font-weight:500}.feedback-confirm-text{margin:0 0 16px;font-size:14px;color:var(--text);text-align:center}.feedback-confirm .feedback-header{justify-content:center;margin-bottom:16px}.btn-feedback-cancel-link{background:transparent;border:none;color:var(--subtle);padding:8px;font-size:13px;cursor:pointer;align-self:center;margin-top:4px;text-decoration:underline}.btn-feedback-cancel-link:hover{color:var(--text)}.feedback-textarea{background:var(--surface);border:1px solid var(--muted);border-radius:8px;color:var(--text);padding:10px 12px;font-family:inherit;font-size:14px;resize:vertical;min-height:80px}.feedback-textarea:focus{outline:none;border-color:var(--accent)}.feedback-actions{display:flex;gap:8px;flex-wrap:wrap}.btn-feedback-submit,.btn-feedback-submit-end{background:linear-gradient(180deg,var(--accent),var(--accent-600));border:none;border-radius:8px;color:#fff;padding:8px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;flex:1;min-width:120px}.btn-feedback-submit:hover,.btn-feedback-submit-end:hover{transform:translateY(-1px);box-shadow:0 4px 12px #005eb84d}.btn-feedback-submit-end{background:linear-gradient(180deg,#4ade80,#22c55e)}.btn-feedback-submit-end:hover{box-shadow:0 4px 12px #4ade804d}.btn-feedback-skip{background:transparent;border:1px solid var(--muted);border-radius:8px;color:var(--subtle);padding:8px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.btn-feedback-skip:hover{background:#ffffff0d}.conversation-resolved{background:#4ade8026;border:1px solid rgba(74,222,128,.3);border-radius:8px;color:#4ade80;padding:12px 16px;margin:16px 0;text-align:center;font-size:14px;font-weight:500;animation:fadeIn .3s ease-out}.message{display:flex}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message .bubble{max-width:min(70ch,80%);padding:10px 12px;border-radius:14px;background:#f9fbff;border:1px solid var(--muted)}.message.user .bubble{white-space:pre-wrap}.message .bubble h1,.message .bubble h2,.message .bubble h3{margin:.5em 0 .25em;color:var(--text)}.message .bubble p{margin:.5em 0}.message .bubble code{background:#005eb814;padding:2px 4px;border-radius:3px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:.9em}.message .bubble pre{background:#f1f6fd;padding:8px 12px;border-radius:6px;overflow-x:auto;margin:.5em 0}.message .bubble pre code{background:none;padding:0}.message .bubble ul,.message .bubble ol{margin:.5em 0;padding-left:1.5em}.message .bubble li{margin:.25em 0}.message .bubble blockquote{border-left:3px solid var(--accent);padding-left:12px;margin:.5em 0;opacity:.9}.message .bubble a{color:var(--accent);text-decoration:none}.message .bubble a:hover{text-decoration:underline}.message.user .bubble{background:#dfeaf9;border-color:#b7cbe7}.message.assistant .bubble{background:#eef3fa;border-color:#c8d6e8}.typing{opacity:.8;font-style:italic}.composer{display:flex;gap:8px;padding:12px;background:var(--panel);border-top:1px solid var(--muted)}.composer input{flex:1;background:var(--surface);border:1px solid var(--muted);border-radius:10px;color:var(--text);padding:10px 12px}.composer button{background:linear-gradient(180deg,var(--accent),var(--accent-600));border:1px solid var(--accent-600);border-radius:10px;color:#fff;padding:0 16px;font-weight:600;cursor:pointer}.composer button:disabled{opacity:.6;cursor:default}.expert-view{padding:24px;overflow:auto}.expert-container{max-width:900px;margin:0 auto}.expert-header{text-align:center;margin-bottom:32px}.expert-header h2{margin:0 0 8px;color:var(--text);font-size:24px}.expert-subtitle{color:var(--subtle);margin:0;font-size:14px}.stepper{display:flex;flex-direction:column;gap:0}.step-item{background:var(--panel);border:1px solid var(--muted);border-radius:8px;margin-bottom:12px;overflow:hidden;transition:all .2s}.step-item:hover{border-color:var(--accent)}.step-item.completed .step-icon{color:#4ade80}.step-item.in_progress .step-icon{color:var(--accent)}.step-item.not_started .step-icon{color:var(--subtle);opacity:.5}.step-header{display:flex;align-items:flex-start;padding:16px;cursor:pointer;-webkit-user-select:none;user-select:none;gap:12px}.step-header:hover{background:#005eb80d}.step-header.expanded{border-bottom:1px solid var(--muted)}.step-indicator{display:flex;flex-direction:column;align-items:center;position:relative}.step-icon{font-size:20px;line-height:1;z-index:1}.step-line{width:2px;height:32px;background:var(--muted);margin-top:4px}.step-title-group{flex:1;display:flex;flex-direction:column;gap:4px}.step-title{margin:0;font-size:16px;font-weight:600;color:var(--text)}.step-status{font-size:12px;font-weight:500;padding:2px 8px;border-radius:4px;width:fit-content}.step-status.completed{background:#4ade8026;color:#4ade80}.step-status.in_progress{background:#5b9cff26;color:var(--accent)}.step-status.not_started{background:#a8b3c71a;color:var(--subtle)}.step-notice{color:var(--subtle);font-size:13px;font-style:italic;padding:12px;background:#a8b3c714;border-left:3px solid var(--subtle);border-radius:4px;margin-bottom:12px;opacity:.85}.step-chevron{color:var(--subtle);font-size:12px;margin-top:2px;transition:transform .2s}.step-body{padding:0 16px 16px 48px;animation:slideDown .2s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.step-content{display:flex;flex-direction:column;gap:16px;position:relative}.step-content.locked{pointer-events:none;opacity:.7}.locked-overlay{position:absolute;top:-8px;right:0;z-index:10;pointer-events:auto}.locked-badge{background:#a8b3c726;border:1px solid var(--muted);color:var(--subtle);padding:4px 12px;border-radius:6px;font-size:12px;font-weight:600;display:flex;align-items:center;gap:4px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.step-description{color:var(--subtle);margin:0 0 8px;font-size:14px;line-height:1.5}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:13px;font-weight:600;color:var(--text)}.form-group input,.form-group textarea{background:var(--surface);border:1px solid var(--muted);border-radius:6px;color:var(--text);padding:8px 12px;font-family:inherit;font-size:14px}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--accent)}.form-group textarea{resize:vertical}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--accent)}.checkbox-label span{-webkit-user-select:none;user-select:none}.field-hint{margin:0;font-size:13px;color:var(--subtle);line-height:1.4;font-style:italic}.file-upload{display:flex;align-items:center;gap:12px}.file-hint{font-size:12px;color:var(--subtle)}.material-list,.test-list{display:flex;flex-direction:column;gap:8px;margin-top:8px}.material-item,.test-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--surface);border:1px solid var(--muted);border-radius:6px}.material-name,.test-question{font-size:14px;color:var(--text)}.material-actions{display:flex;gap:4px}.test-status{font-size:12px;padding:2px 8px;border-radius:4px;font-weight:500}.test-status.pending{background:#a8b3c71a;color:var(--subtle)}.test-case-card{background:var(--surface);border:1px solid var(--muted);border-radius:8px;padding:12px;margin-bottom:12px}.test-case-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.test-case-label{font-size:12px;font-weight:600;color:var(--subtle);text-transform:uppercase;letter-spacing:.5px}.test-case-question{font-size:14px;color:var(--text);font-weight:500;margin-bottom:8px;line-height:1.5}.test-case-answer{font-size:14px;color:var(--text);line-height:1.5;background:var(--surface-2);padding:8px 10px;border-radius:6px;border-left:3px solid var(--accent)}.test-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;flex-wrap:wrap;gap:8px}.test-list-header h4{margin:0;font-size:14px;font-weight:600;color:var(--text)}.test-actions-header{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.test-case-sort-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--subtle)}.test-case-sort-select{background:var(--panel);border:1px solid var(--muted);border-radius:6px;color:var(--text);padding:4px 8px;font-size:13px;cursor:pointer}.test-case-stats-hint{font-size:12px;color:var(--subtle);margin:4px 0 8px}.bulk-test-section{display:flex;align-items:center;gap:8px;margin-top:10px;flex-wrap:wrap}.bulk-test-label{font-size:13px;color:var(--subtle)}.bulk-file-input{position:absolute;width:.1px;height:.1px;opacity:0;overflow:hidden;z-index:-1}.bulk-upload-errors{margin-top:10px;padding:10px 12px;background:#c850501f;border:1px solid rgba(200,80,80,.4);border-radius:8px;color:#f0b0b0;font-size:13px}.bulk-upload-errors strong{display:block;margin-bottom:6px}.bulk-upload-errors ul{margin:0;padding-left:18px}.bulk-upload-success{margin-top:10px;padding:8px 12px;background:#00b4781f;border:1px solid rgba(0,180,120,.35);border-radius:8px;color:#90e0c0;font-size:13px}.btn-sm{padding:6px 12px;font-size:13px}.test-list-compact{display:flex;flex-direction:column;gap:8px}.test-case-item{background:var(--surface);border:1px solid var(--muted);border-radius:6px;padding:10px 12px;display:flex;justify-content:space-between;align-items:flex-start;gap:12px;transition:border-color .2s}.test-case-item:hover{border-color:var(--accent)}.test-case-display{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}.test-q,.test-a{font-size:13px;line-height:1.5;color:var(--text);word-wrap:break-word}.test-q strong,.test-a strong{color:var(--subtle);font-weight:600;margin-right:6px}.test-a{color:var(--subtle);padding-left:20px}.test-a p{margin:.3em 0;display:inline}.test-a code{background:#ffffff1a;padding:2px 4px;border-radius:3px;font-family:Monaco,Menlo,monospace;font-size:.9em}.test-a ul,.test-a ol{margin:.3em 0;padding-left:1.5em}.test-a li{margin:.2em 0}.test-case-actions{display:flex;gap:4px;align-items:center;flex-shrink:0}.btn-icon-sm{background:#f3f8ff;border:1px solid var(--muted);padding:4px;font-size:14px;cursor:pointer;border-radius:4px;transition:all .2s;line-height:1;color:var(--text)}.btn-icon-sm:hover{background:#005eb840;border-color:var(--accent);color:#fff}.btn-icon-sm:disabled{opacity:.5;cursor:not-allowed}.test-case-add,.test-case-edit{background:#005eb80d;border:1px solid var(--accent);border-radius:6px;padding:12px;display:flex;flex-direction:column;gap:10px;margin-bottom:8px;animation:fadeIn .2s ease-out;width:100%}.form-group-inline{display:flex;flex-direction:column;gap:4px}.form-group-inline label{font-size:12px;font-weight:600;color:var(--subtle);text-transform:uppercase;letter-spacing:.5px}.form-group-inline input,.form-group-inline textarea{width:100%;background:var(--surface);border:1px solid var(--muted);border-radius:6px;color:var(--text);padding:8px 12px;font-family:inherit;font-size:14px}.form-group-inline input:focus,.form-group-inline textarea:focus{outline:none;border-color:var(--accent)}.form-group-inline textarea{resize:vertical;min-height:80px}.btn-sm-action{padding:6px 12px;font-size:13px;border:none;border-radius:4px;cursor:pointer;font-weight:600;transition:all .2s}.btn-sm-action.save{background:linear-gradient(180deg,var(--accent),var(--accent-600));color:#fff}.btn-sm-action.save:hover{transform:translateY(-1px);box-shadow:0 2px 8px #005eb84d}.btn-sm-action.save:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-sm-action.cancel{background:transparent;border:1px solid var(--muted);color:var(--subtle)}.btn-sm-action.cancel:hover{background:#005eb812}.step-actions{display:flex;gap:8px;margin-top:8px;align-items:center;flex-wrap:wrap}.test-harness-hint{font-size:12px;color:var(--subtle);margin-left:4px}.btn-primary,.btn-secondary,.btn-icon{border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:linear-gradient(180deg,var(--accent),var(--accent-600));color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #005eb84d}.btn-secondary{background:var(--surface-2);border:1px solid var(--muted);color:var(--text)}.btn-secondary:hover{background:#e6eef9}.btn-icon{background:transparent;border:1px solid transparent;padding:4px 8px;font-size:14px}.btn-icon:hover{background:#005eb812;border-color:var(--muted)}.btn-release{background:linear-gradient(180deg,#4ade80,#22c55e)!important}.btn-release:hover{box-shadow:0 4px 12px #4ade804d!important}.btn-release:disabled{opacity:.5;cursor:not-allowed;transform:none!important;box-shadow:none!important}.update-panel{display:flex;flex-direction:column;gap:12px}.info-box{padding:12px;background:#5b9cff1a;border:1px solid rgba(91,156,255,.3);border-radius:6px;color:var(--text);font-size:14px}.test-results h4{margin:0 0 8px;color:var(--text);font-size:14px;font-weight:600}.muted{color:var(--subtle);font-size:13px}.system-built-notice{background:#4ade8026;border:1px solid rgba(74,222,128,.3);border-radius:8px;color:#4ade80;padding:12px 16px;margin-top:12px;text-align:center;font-size:14px;font-weight:500;animation:fadeIn .3s ease-out}.auto-gen-dialog{background:var(--panel);border:2px solid var(--accent);border-radius:10px;padding:16px;margin-bottom:16px;animation:slideDown .3s ease-out}.dialog-header{display:flex;align-items:center;gap:8px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--muted)}.dialog-icon{font-size:20px}.dialog-title{font-size:16px;font-weight:600;color:var(--text)}.dialog-body{display:flex;flex-direction:column;gap:14px}.dialog-actions{display:flex;gap:8px;margin-top:4px}