:root{background:radial-gradient(circle at 10% 20%,rgba(102,126,234,.15),transparent 55%),radial-gradient(circle at 90% 10%,rgba(118,75,162,.12),transparent 60%),#05060a;color:#f8fafc;min-height:100%}:root .scenario-card.active{border-color:#818cf8b3;transform:translateY(-2px)}:root .scenario-card-body{flex:1;display:flex;flex-direction:column;gap:8px}*{box-sizing:border-box}body{margin:0}.app-shell{max-width:960px;margin:0 auto;padding:24px 18px 80px;display:flex;flex-direction:column;gap:18px}.app-header{display:flex;justify-content:space-between;align-items:center;gap:16px}.app-header h1{margin:0;font-size:1.6rem}.app-header p{margin:4px 0 0;color:#f8fafcb3;font-size:.9rem}.tab-toggle{display:inline-flex;background:#94a3b826;border-radius:999px;padding:4px;gap:4px}.tab-toggle button{background:transparent;border:none;color:#f8fafcb3;border-radius:999px;padding:8px 18px;font-size:.95rem;cursor:pointer;transition:all .2s ease}.tab-toggle button.active{background:linear-gradient(135deg,#7068e0,#be73ff);color:#0b0c12;font-weight:600}.session-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;background:#0f172aa6;border-radius:16px;padding:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(148,163,184,.1)}.session-controls label{display:flex;flex-direction:column;gap:8px;font-size:.85rem;color:#f8fafcbf}.preset-description{font-size:.78rem;color:#e2e8f0a6;display:block;line-height:1.3}.session-controls textarea,.session-controls select,.session-controls input[type=range],.composer textarea,.image-panel textarea{background:#0f172ad9;border:1px solid rgba(148,163,184,.3);border-radius:12px;padding:10px 12px;color:inherit;font:inherit;transition:border-color .2s ease,box-shadow .2s ease}.session-controls textarea:focus,.session-controls select:focus,.composer textarea:focus,.image-panel textarea:focus{outline:none;border-color:#818cf899;box-shadow:0 0 0 3px #818cf833}.chat-panel,.image-panel{background:#0f172ab3;border-radius:20px;padding:18px;border:1px solid rgba(148,163,184,.1);display:flex;flex-direction:column;gap:16px;min-height:360px}.message-list{flex:1;display:flex;flex-direction:column;gap:14px;overflow-y:auto;padding-right:6px}.message-empty{margin:auto;text-align:center;color:#f8fafc99;font-size:.95rem}.message{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border-radius:14px;max-width:80%;box-shadow:0 10px 30px #080b1f2e}.message-user{align-self:flex-end;background:linear-gradient(135deg,#818cf8e6,#ec4899d9);color:#0b0c12}.message-assistant{align-self:flex-start;background:#1e293be6;border:1px solid rgba(99,102,241,.2)}.message-meta{display:flex;justify-content:space-between;font-size:.75rem;opacity:.7}.message-content{white-space:pre-wrap;font-size:.95rem;line-height:1.45}.composer{display:flex;gap:12px;align-items:flex-end}.composer textarea{flex:1;resize:vertical;min-height:72px}.composer button,.image-panel button{background:linear-gradient(135deg,#818cf8,#ec4899);border:none;color:#05060a;padding:12px 22px;border-radius:14px;font-size:.95rem;font-weight:600;cursor:pointer;transition:transform .1s ease,filter .2s ease}.composer button:disabled,.image-panel button:disabled{opacity:.6;cursor:not-allowed}.composer button:not(:disabled):hover,.image-panel button:not(:disabled):hover{transform:translateY(-1px);filter:brightness(1.05)}.image-panel textarea{min-height:120px}.panel-hint{margin:0;font-size:.85rem;color:#f8fafca6}.image-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.image-grid figure{margin:0;background:#0f172a99;border-radius:16px;padding:12px;border:1px solid rgba(148,163,184,.1);display:flex;flex-direction:column;gap:8px}.image-grid img{width:100%;border-radius:12px;display:block}.image-grid figcaption{font-size:.8rem;color:#f8fafcb3}.mode-toggle{display:inline-flex;gap:6px;background:#94a3b826;border-radius:999px;padding:4px}.mode-toggle button{background:transparent;border:none;color:#f8fafcb3;border-radius:999px;padding:8px 16px;font-size:.9rem;cursor:pointer;transition:all .2s ease}.mode-toggle button.active{background:linear-gradient(135deg,#38bdf8,#818cf8);color:#05060a;font-weight:600}.scenario-library{background:#0f172aa6;border-radius:16px;padding:16px;border:1px solid rgba(148,163,184,.1);display:flex;flex-direction:column;gap:14px}.scenario-library-header{display:flex;justify-content:space-between;align-items:center;gap:12px}.scenario-library-header h2{margin:0;font-size:1.15rem}.scenario-library-actions button{background:linear-gradient(135deg,#34d399,#3b82f6);border:none;color:#05060a;padding:10px 18px;border-radius:12px;font-size:.85rem;cursor:pointer;transition:transform .1s ease,filter .2s ease}.scenario-library-actions button:hover{transform:translateY(-1px);filter:brightness(1.05)}.scenario-list-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.scenario-card{background:#0f172acc;border:1px solid rgba(148,163,184,.15);border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:12px;transition:border-color .2s ease,transform .2s ease}.scenario-card.active{border-color:#818cf8b3;transform:translateY(-2px)}.scenario-card-body{flex:1;display:flex;flex-direction:column;gap:8px}.scenario-card-body h3{margin:0 0 6px;font-size:1rem}.scenario-card-body p{margin:0;font-size:.85rem;color:#f8fafcbf}.scenario-card-meta{display:flex;flex-wrap:wrap;gap:6px;font-size:.7rem;color:#94a3b8bf;margin-top:10px}.scenario-card-meta span{background:#6366f129;padding:4px 8px;border-radius:999px}.scenario-card-actions{display:flex;gap:8px;flex-wrap:wrap}.scenario-card-actions button{flex:1;min-width:100px;border:1px solid rgba(129,140,248,.4);background:transparent;color:#f8fafccc;border-radius:10px;padding:8px 10px;font-size:.8rem;cursor:pointer;transition:background .2s ease,color .2s ease}.scenario-card-actions button:hover{background:#818cf833}.builder-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:16px}.builder-column{background:#0f172ab3;border-radius:18px;padding:18px;border:1px solid rgba(148,163,184,.1);display:flex;flex-direction:column;gap:14px}.builder-column h2{margin:0;font-size:1.2rem}.builder-column p{margin:0;font-size:.9rem;color:#f8fafcb8}.builder-status{font-size:.8rem;color:#818cf8cc}.builder-buttons{display:flex;gap:10px;flex-wrap:wrap}.builder-buttons button{border:1px solid rgba(56,189,248,.4);background:#38bdf81f;color:#f8fafcd9;border-radius:10px;padding:8px 14px;font-size:.8rem;cursor:pointer;transition:background .2s ease,transform .1s ease}.builder-buttons button:hover:not(:disabled){background:#38bdf840;transform:translateY(-1px)}.builder-buttons button:disabled{opacity:.6;cursor:not-allowed}.builder-question-bank{background:#1e293b99;border-radius:12px;padding:12px;border:1px solid rgba(148,163,184,.1)}.builder-question-bank h3{margin:0 0 8px;font-size:.95rem}.builder-question-bank ul{margin:0;padding-left:18px;font-size:.8rem;color:#e2e8f0bf}.builder-card{background:#1e293bb8;border-radius:16px;padding:16px;border:1px solid rgba(129,140,248,.15);display:flex;flex-direction:column;gap:12px}.builder-card h3{margin:0;font-size:1rem}.builder-card textarea{background:#0f172ad9;border:1px solid rgba(148,163,184,.3);border-radius:12px;padding:10px 12px;color:inherit;font:inherit;resize:vertical;min-height:120px}.builder-actions{display:flex;gap:10px;flex-wrap:wrap}.builder-actions button{flex:1;min-width:120px;border:1px solid rgba(216,180,254,.4);background:#d8b4fe26;color:#f8fafce0;border-radius:10px;padding:8px 12px;font-size:.85rem;cursor:pointer;transition:background .2s ease,transform .1s ease}.builder-actions button:hover:not(:disabled){background:#d8b4fe40;transform:translateY(-1px)}.builder-actions button:disabled{opacity:.6;cursor:not-allowed}.builder-answer-review{margin:0;font-size:.82rem;color:#94a3b8d9}.builder-history ul,.builder-tips ul{margin:0;padding-left:18px;font-size:.8rem;color:#e2e8f0bf}.builder-answer-label{color:#60a5fad9}.builder-summary-card{background:#0f172abd;border-radius:16px;border:1px solid rgba(148,163,184,.12);padding:16px;display:flex;flex-direction:column;gap:10px}.builder-summary-card h3{margin:0;font-size:1.1rem}.builder-summary-card p{margin:0;font-size:.85rem;color:#f8fafcc7}.builder-tags{display:flex;gap:6px;flex-wrap:wrap}.builder-tags span{background:#38bdf833;border-radius:999px;padding:4px 10px;font-size:.7rem}.builder-tag{display:inline-block;background:#f9731633;border:1px solid rgba(249,115,22,.3);padding:4px 10px;border-radius:999px;font-size:.7rem;align-self:flex-start}@media (max-width: 720px){.app-shell{padding:16px 12px 60px;gap:14px}.app-header{flex-direction:column;align-items:flex-start}.builder-layout{grid-template-columns:1fr}.builder-buttons,.builder-actions,.scenario-card-actions{flex-direction:column}.message{max-width:100%}}