:root{--navy: #27335d;--navy-dark: #1c2746;--blue: #4887f5;--blue-deep: #2f6ae0;--yellow: #f6c65a;--yellow-soft: #fce8bd;--coral: #ef7e74;--gray: #e9e9ea;--ink: #ffffff;--muted: #aab3cc;--board-ink: #27335d;--radius-pill: 9999px;--radius-card: 18px;--radius-section: 36px;--sticker: 5px 6px 0 rgba(18, 26, 51, .35)}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,system-ui,-apple-system,sans-serif;background:var(--navy);color:var(--ink);line-height:1.5}.app{min-height:100vh;display:flex;flex-direction:column}header{display:flex;align-items:center;gap:.9rem;padding:.9rem 1.5rem;background:var(--navy-dark)}.brand-logo{height:40px;width:auto}.brand-product{font-weight:700;font-size:1.05rem;letter-spacing:.2px;border-left:2px solid #3a4877;padding-left:.9rem}.hero{background:var(--blue);border-radius:0 0 var(--radius-section) var(--radius-section);padding:3rem 1.5rem 3.5rem;text-align:center}.hero h1{margin:0 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.caption{color:#8a93b0;font-style:italic}.controls{display:flex;gap:.45rem;justify-content:center;flex-wrap:wrap}.controls button{background:#fff;color:var(--navy);border:1.5px solid #d8deee;font-weight:600;padding:.5rem 1rem}.controls .play-cta{background:var(--yellow);border:none;box-shadow:3px 4px #121a3340;font-weight:700}.ask{margin-top:.8rem;width:100%;background:var(--blue);box-shadow:var(--sticker)}.ask.recording{background:var(--coral);animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.65}}.hint{color:#7f89ab;font-size:.75rem;margin:.5rem 0 0}.chatbox{display:flex;gap:.4rem;margin-top:.6rem}.chatbox input{flex:1;font-size:.9rem;padding:.55rem .85rem;background:#f4f6fb;border:1.5px solid #d8deee;color:var(--navy)}.chatbox .send{padding:.45rem .95rem;background:var(--yellow);color:var(--navy);font-size:1rem}.board-col{display:flex;flex-direction:column;gap:.7rem}.progress-row{display:flex;align-items:center;gap:.9rem}.progress-chip{flex:none;background:var(--navy);border:1.5px solid #3a4877;color:var(--ink);font-size:.78rem;font-weight:600;padding:.3rem .85rem;border-radius:var(--radius-pill)}.progress-track{flex:1;height:10px;background:var(--navy);border-radius:6px;overflow:hidden}.progress-fill{height:100%;background:var(--yellow);border-radius:6px;transition:width .5s ease}.whiteboard-wrap{min-height:380px;background:var(--gray);border-radius:20px;padding:10px;box-shadow:var(--sticker)}.whiteboard{background:#fff;color:var(--board-ink);border-radius:12px;padding:1.5rem 1.75rem;min-height:360px;max-height:560px;overflow-y:auto;font-size:1.12rem}.whiteboard h2{margin-top:0;color:var(--blue-deep);font-weight:700}.whiteboard p{margin:.5rem 0}.whiteboard .ar-word{font-size:1.7rem;font-family:IBM Plex Sans Arabic,Amiri,Traditional Arabic,sans-serif;font-weight:600}.whiteboard .gloss{color:#6a7391;font-style:italic}.whiteboard .hl{background:var(--yellow-soft);border-radius:4px;padding:0 4px}.whiteboard .qa{margin-top:1rem;padding:.75rem 1rem;background:#f2f6ff;border-left:4px solid var(--blue);border-radius:8px}.whiteboard .qa .q{font-style:italic;color:#6a7391;margin:0 0 .35rem}.token-bar{border:1.5px solid var(--yellow)}.debug summary{cursor:pointer;font-weight:600}.debug pre{white-space:pre-wrap;word-break:break-word;font-size:.78rem;color:var(--muted);max-height:400px;overflow:auto}