:root{--bg: #0c0e14;--surface: #151922;--surface-2: #1c2230;--border: #2a3142;--text: #eef1f6;--muted: #8b93a7;--accent: #6b8afd;--accent-dim: rgba(107, 138, 253, .15);--success: #4ade80;--error: #f87171;--radius: 12px}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.5}.wrap{max-width:880px;margin:0 auto;padding:2rem 1.25rem 4rem}header{margin-bottom:1.75rem}h1{font-size:1.65rem;font-weight:600;margin:0 0 .35rem;letter-spacing:-.02em}.sub{color:var(--muted);font-size:.95rem;margin:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}.card-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 .75rem}label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.4rem}.secret-input{flex:0 0 14rem;width:14rem;padding:.65rem .85rem;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--text);font:inherit;font-size:.9rem}.secret-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}textarea{width:100%;min-height:96px;padding:.85rem 1rem;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--text);font-size:1rem;resize:vertical;font-family:inherit}textarea:focus{outline:2px solid var(--accent);border-color:transparent}.controls{display:flex;flex-wrap:wrap;gap:.65rem;align-items:center;margin-top:1rem}.progress-line{flex:1 1 0;display:flex;align-items:center;gap:.5rem;min-width:0;font-size:.85rem;color:var(--muted)}.progress-line .progress-message{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.progress-line.active{color:var(--text)}.progress-line.error{color:var(--error)}.ask-btn{flex-shrink:0;margin-left:auto;background:var(--accent);color:#fff;border:none;padding:.65rem 1.5rem;border-radius:10px;font-size:1rem;font-weight:500;cursor:pointer;font-family:inherit}.ask-btn:hover:not(:disabled){filter:brightness(1.08)}.ask-btn:disabled{opacity:.45;cursor:not-allowed}.lang-toggle{display:flex;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--surface-2)}.lang-toggle button{padding:.5rem .9rem;border:none;background:transparent;color:var(--muted);font-size:.85rem;cursor:pointer;font-family:inherit}.lang-toggle button.active{background:var(--accent-dim);color:var(--accent);font-weight:600}.lang-toggle button:not(:last-child){border-right:1px solid var(--border)}.steps{list-style:none;padding:0;margin:0}.steps li{display:flex;align-items:center;gap:.75rem;padding:.5rem 0;font-size:.9rem;color:var(--muted)}.steps li.pending{color:var(--muted);opacity:.65}.steps li.active{color:var(--text)}.steps li.done{color:var(--success)}.steps li.error{color:var(--error)}.step-icon{width:1.25rem;height:1.25rem;flex-shrink:0;display:flex;align-items:center;justify-content:center}.step-pending{width:8px;height:8px;border:1.5px solid var(--border);border-radius:50%;box-sizing:border-box}.step-done,.step-error{font-size:.85rem;font-weight:700;line-height:1}.spinner{display:block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;box-sizing:border-box}@keyframes spin{to{transform:rotate(360deg)}}.answer-body{font-size:1rem;line-height:1.65;min-height:2rem}.answer-body p{margin:0 0 .85rem}.answer-body strong{color:#fff}.answer-body ul,.answer-body ol{margin:.5rem 0 .85rem 1.25rem}.answer-body a{color:var(--accent)}.answer-body .cite-link{color:var(--accent);font-weight:600;text-decoration:none;cursor:pointer}.answer-body .cite-link:hover{text-decoration:underline}.cursor-blink:after{content:"▋";animation:blink 1s step-end infinite;color:var(--accent)}@keyframes blink{50%{opacity:0}}.refs{list-style:none;padding:0;margin:0}.refs li{padding:.85rem 0;border-bottom:1px solid var(--border)}.refs li:last-child{border-bottom:none}.refs .ref-num{color:var(--accent);font-weight:600;margin-right:.35rem}.refs .ref-link{background:none;border:none;padding:0;color:var(--text);font:inherit;font-weight:500;text-align:left;cursor:pointer}.refs .ref-link:hover{color:var(--accent);text-decoration:underline}.refs .meta{font-size:.82rem;color:var(--muted);margin-top:.25rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:1.25rem;background:#06080cd1;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{width:min(720px,100%);max-height:calc(100vh - 2.5rem);overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 24px 48px #00000073}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1.1rem 1.25rem .75rem}.modal-label{margin:0 0 .35rem;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent)}.modal-title{margin:0;font-size:1.05rem;font-weight:600;line-height:1.4}.modal-close{flex-shrink:0;width:2rem;height:2rem;border:1px solid var(--border);border-radius:8px;background:var(--surface-2);color:var(--muted);font-size:1.25rem;line-height:1;cursor:pointer}.modal-close:hover{color:var(--text);border-color:var(--accent)}.modal-video{position:relative;width:100%;aspect-ratio:16 / 9;background:#000}.modal-video iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.modal-body{padding:1rem 1.25rem 1.25rem}.modal-meta{margin:0 0 .5rem;font-size:.85rem;color:var(--muted)}.modal-question{margin:0 0 1rem;font-size:.95rem;line-height:1.55}.modal-youtube-link{display:inline-block;font-size:.85rem;color:var(--accent);text-decoration:none}.modal-youtube-link:hover{text-decoration:underline}.banner-error{background:#f871711f;border:1px solid rgba(248,113,113,.35);color:var(--error);padding:.75rem 1rem;border-radius:10px;font-size:.9rem;margin-top:1rem}