:root{--bg: #111827;--card: #1f2937;--text: #f3f4f6;--muted: #9ca3af;--accent: #22c55e;--danger: #ef4444;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100dvh;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid #374151}main{flex:1;overflow-y:auto;padding:16px}.tabbar{display:flex;border-top:1px solid #374151}.tabbar button{flex:1;background:none;border:none;color:var(--muted);padding:12px 0;font-size:14px}.tabbar button.active{color:var(--accent);font-weight:600}.card{background:var(--card);border-radius:12px;padding:16px}h1,h2,h3,h4{margin:0 0 8px}.muted{color:var(--muted)}.small{font-size:12px}.error{color:var(--danger)}.coach-note{font-style:italic;color:var(--muted);border-left:3px solid var(--accent);padding-left:10px;margin:10px 0}textarea,input{width:100%;background:#111827;border:1px solid #374151;color:var(--text);border-radius:8px;padding:10px;font-size:16px;margin-bottom:10px}textarea{min-height:60px;resize:vertical}button{background:var(--accent);color:#08130b;border:none;border-radius:999px;padding:12px 18px;font-weight:600;font-size:15px;cursor:pointer}button.link{background:none;color:var(--accent);padding:8px 0;font-weight:500}button:disabled{opacity:.6}.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.row.space-between{justify-content:space-between;align-items:center}.blocks{padding-left:20px}.blocks li{margin-bottom:10px}.block-item{display:flex;align-items:center;gap:12px}.block-image{width:56px;height:56px;object-fit:cover;border-radius:10px;background:#0b1220;flex-shrink:0}.login-screen{height:100dvh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:24px;gap:12px}.chat{display:flex;flex-direction:column;height:100%}.chat-log{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;margin:10px 0}.bubble{padding:10px 14px;border-radius:14px;max-width:85%;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--accent);color:#08130b}.bubble.assistant{align-self:flex-start;background:#374151}.chat-input{display:flex;gap:8px}.chat-input input{margin-bottom:0}.history-list{list-style:none;padding:0;margin:0}.history-list li{padding:10px 0;border-bottom:1px solid #374151}.badge{font-size:11px;padding:2px 8px;border-radius:999px;background:#374151}.badge.completed{background:var(--accent);color:#08130b}.loading{display:flex;height:100dvh;align-items:center;justify-content:center}