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var(--border);border-radius:var(--r-sm);cursor:pointer;color:var(--muted);background:0 0;flex:1;padding:10px;font-family:inherit;font-size:14px}.btn-submit{background:var(--primary);color:#fff;border-radius:var(--r-sm);cursor:pointer;border:none;flex:2;padding:10px;font-family:inherit;font-size:14px;font-weight:600}.btn-submit:hover{background:var(--primary-dark)}.thanks{text-align:center;padding:16px 0}.thanks .t-ico{color:var(--primary);margin-bottom:10px;font-size:48px}.thanks h4{margin-bottom:5px;font-size:18px;font-weight:700}.thanks p{color:var(--muted);font-size:14px}.toast{background:var(--anthrazit);color:#fff;z-index:200;white-space:normal;text-align:center;pointer-events:none;border-radius:20px;max-width:90vw;padding:9px 20px;font-size:13px;font-weight:500;line-height:1.35;transition:transform .3s;position:fixed;bottom:22px;left:50%;transform:translate(-50%)translateY(80px)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.md-block{margin:0 0 8px}.toast.show{transform:translate(-50%)translateY(0)}.toast.err{background:var(--error)}.api-dot{background:var(--gray);border-radius:50%;width:7px;height:7px}.api-dot.ok{background:var(--success)}.api-dot.err{background:var(--error)}#poem-screen{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:28px}.poem-wrap{width:100%;max-width:540px}.poem-wrap h1{color:var(--anthrazit);margin-bottom:8px;font-size:21px;font-weight:700}.poem-hint{color:var(--muted);margin-bottom:26px;font-size:13px;line-height:1.6}.poem-hint code{background:var(--primary-light);color:var(--primary);border-radius:5px;padding:1px 6px}.poem-card{background:var(--white);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:var(--r-sm);text-align:left;padding:24px 26px;box-shadow:0 4px 20px #3e44470f}.poem-label{text-transform:uppercase;letter-spacing:.12em;color:var(--primary);margin-bottom:14px;font-size:11px;font-weight:700}.poem-card p{color:var(--anthrazit);margin:0;font-size:15px;font-style:italic;line-height:1.85}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}@media (width<=480px){.login-card{padding:28px 22px}}.chat-privacy{justify-content:flex-end;min-height:22px;padding:2px 0 0;display:flex}.chat-privacy-note{text-align:right;justify-content:flex-end;margin-top:4px;padding:6px 12px}.privacy-icon-btn{cursor:pointer;color:var(--primary);border-radius:var(--r-sm);background:0 0;border:none;padding:2px 6px;font-size:16px;line-height:1;transition:background .15s}.privacy-icon-btn:hover{background:var(--primary-light)}.chat-input-area{position:relative}.chat-counter{color:var(--muted);pointer-events:none;font-size:11px;position:absolute;bottom:6px;right:64px}.phrase-box.clickable{cursor:pointer;transition:background .15s,border-color .15s}.phrase-box.clickable:hover,.phrase-box.clickable:focus-visible{background:#fff;border-style:solid;outline:none}.phrase-copy-icon{color:var(--primary);opacity:.8;margin-left:6px;font-size:13px}button.phrase-code{font:inherit;cursor:pointer;background:0 0;border:none}button.phrase-code:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}:root[data-theme=refined]{--primary-text:#246e9e;--primary-deep:#1c5b84;--user-bubble:#dcecf8;--col-w:800px;--col-pad:max(16px, calc((100% - var(--col-w)) / 2))}[data-theme=refined] .btn-primary,[data-theme=refined] .send-btn,[data-theme=refined] .btn-submit,[data-theme=refined] .qz-btn:not(.ghost),[data-theme=refined] .nps-btn.selected,[data-theme=refined] .avatar,[data-theme=refined] .mira-avatar-lg{background:var(--primary-text)}[data-theme=refined] .btn-primary:hover,[data-theme=refined] .send-btn:hover:not(:disabled),[data-theme=refined] .btn-submit:hover{background:var(--primary-deep)}[data-theme=refined] .related-chip:hover,[data-theme=refined] .quiz-reveal-btn:hover,[data-theme=refined] .quiz-nav-btn:hover{background:var(--primary-text);border-color:var(--primary-text);color:#fff}[data-theme=refined] .nav-logo,[data-theme=refined] .phrase-lbl,[data-theme=refined] .phrase-copy-icon,[data-theme=refined] .privacy-link,[data-theme=refined] .privacy-note .ti-shield-lock,[data-theme=refined] .privacy-icon-btn,[data-theme=refined] .lang-switch-opt.active,[data-theme=refined] .lang-switch-opt:hover,[data-theme=refined] .starter-chip,[data-theme=refined] .quiz-opt-btn .opt-letter,[data-theme=refined] .qz-opt .mk,[data-theme=refined] .qz-typebadge,[data-theme=refined] .quiz-answer .solution-lbl,[data-theme=refined] .poem-label,[data-theme=refined] .thanks .t-ico{color:var(--primary-text)}[data-theme=refined] .source-chip{color:var(--primary-text);font-size:12px}[data-theme=refined] .related-chip,[data-theme=refined] .quiz-reveal-btn{color:var(--primary-text);border-color:var(--primary-text)}[data-theme=refined] .quiz-nav-btn{color:var(--primary-text);border-color:var(--primary-text);font-size:13px}[data-theme=refined] .btn-ghost:hover,[data-theme=refined] .nav-btn:hover,[data-theme=refined] .qz-btn.ghost:hover{color:var(--primary-text);border-color:var(--primary-text)}[data-theme=refined] .chat-messages,[data-theme=refined] .chat-input-area,[data-theme=refined] .topic-progress,[data-theme=refined] .tc-legend,[data-theme=refined] .chat-privacy{padding-left:var(--col-pad);padding-right:var(--col-pad)}[data-theme=refined] .chat-counter{right:calc(var(--col-pad) + 48px)}[data-theme=refined] .chat-messages{gap:18px;padding-top:24px}[data-theme=refined] .msg.mira{max-width:100%}[data-theme=refined] .msg.user{max-width:80%}[data-theme=refined] .msg.mira .bubble{border:1px solid var(--border);box-shadow:0 1px 2px #3e44470a}[data-theme=refined] .msg.user .bubble{background:var(--user-bubble);color:var(--text)}[data-theme=refined] .msg.user .bubble .md-code{background:#246e9e1f}[data-theme=refined] .source-row.inline{margin-top:10px}[data-theme=refined] .meta-toggle{margin-top:4px}[data-theme=refined] .typing-text{opacity:1;color:var(--muted)}[data-theme=refined] .type-badge.fact,[data-theme=refined] .type-badge.summary,[data-theme=refined] .type-badge.deep,[data-theme=refined] .type-badge.example,[data-theme=refined] .type-badge.simple,[data-theme=refined] .type-badge.alternative{color:#1e4e6e;background:#e8f3fb}[data-theme=refined] .type-badge.task,[data-theme=refined] .type-badge.clarify,[data-theme=refined] .type-badge.quiz,[data-theme=refined] .type-badge.debug{color:#7c4a03;background:#fef3c7}[data-theme=refined] .type-badge.not_found,[data-theme=refined] .type-badge.no_docs,[data-theme=refined] .type-badge.offtopic{color:#4b5563;background:#f3f4f6}[data-theme=refined] .tc-light{color:var(--primary-text);border-color:#246e9e99}[data-theme=refined] .tc-light.discussed,[data-theme=refined] .tc-light.touched,[data-theme=refined] .tc-light.learning{border-color:var(--primary-text);color:var(--primary-text)}[data-theme=refined] .tc-light.learning:before,[data-theme=refined] .tc-light.mastered:before{background:var(--primary-text)}[data-theme=refined] .tc-light.mastered{border-color:var(--primary-text)}[data-theme=refined] .tc-conn.on{background:var(--primary-text)}[data-theme=refined] .tc-star{color:var(--muted);border-color:var(--gray)}[data-theme=refined] .phrase-code{opacity:1;color:var(--muted);font-size:12px}[data-theme=refined] .app-version{opacity:1;color:var(--muted)}[data-theme=refined] .tc-wrap{flex-shrink:0;display:inline-flex;position:relative}[data-theme=refined] button.tc-light{cursor:pointer;padding:0}[data-theme=refined] button.tc-light:focus-visible{outline-offset:1px}[data-theme=refined] .tc-pop{z-index:30;background:var(--white);border:1px solid var(--border);border-radius:var(--r-sm);text-align:left;min-width:220px;max-width:calc(100vw - 32px);padding:10px 12px;font-size:13px;position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%);box-shadow:0 8px 24px #3e444724}[data-theme=refined] .tc-wrap:first-of-type .tc-pop{left:0;transform:none}[data-theme=refined] .tc-pop-title{margin-bottom:3px;font-weight:600}[data-theme=refined] .tc-pop-meta{color:var(--muted);margin-bottom:8px;font-size:12px}[data-theme=refined] .tc-pop-btn{font-size:12px}[data-theme=refined] .tc-legend{background:var(--white);border-top:1px solid var(--border);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding-top:8px;padding-bottom:0;font-size:12px;display:flex}[data-theme=refined] .tc-legend-btn{border:1px solid var(--border);font:600 11px/1.4 var(--font);color:var(--primary-text);cursor:pointer;background:0 0;border-radius:999px;padding:3px 10px}[data-theme=refined] .tc-legend-btn:hover{border-color:var(--primary-text)}[data-theme=refined] .login-card h1{font-size:24px}[data-theme=refined] .login-card .sub{font-size:14px}[data-theme=refined] .phrase-box{border-color:var(--primary-text)}[data-theme=refined] .phrase-hint{color:#4b5563;font-size:12px}[data-theme=refined] .optin-label{color:#4b5563;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--bg);margin-top:12px;padding:10px 12px;font-size:12.5px}[data-theme=refined] .privacy-note{color:#4b5563;margin-top:10px}[data-theme=refined] .privacy-sep{display:none}[data-theme=refined] .ai-act-note{color:var(--muted);margin-top:12px;font-size:12px}