*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:system-ui,"Segoe UI",Arial,sans-serif;background:#f1f5f9;color:#0f172a;overflow:hidden}
#view{position:fixed;top:0;left:0;right:0;bottom:calc(84px + env(safe-area-inset-bottom));display:flex;flex-direction:column}
nav#tabs{position:fixed;bottom:0;left:0;right:0;height:calc(64px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:flex;background:#0f172a}
nav#tabs button{flex:1;background:none;border:0;color:#94a3b8;font-size:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-top:3px solid transparent}
nav#tabs button span{font-size:11px}nav#tabs button.on{color:#fff;border-top-color:#22c55e}
.disc{position:fixed;left:0;right:0;bottom:calc(64px + env(safe-area-inset-bottom));height:20px;line-height:20px;font-size:11px;text-align:center;background:#e2e8f0;color:#475569}
header.top{background:#0f172a;color:#fff;padding:12px 16px 10px}header.top h1{font-size:17px;margin:0;display:flex;gap:8px;align-items:center}
.bar{height:7px;background:#334155;border-radius:9px;margin-top:8px}.bar i{display:block;height:100%;background:#22c55e;border-radius:9px;transition:width .3s}
.meta{font-size:12px;color:#94a3b8;margin-top:6px;display:flex;justify-content:space-between;gap:8px}
.ph{background:#f59e0b;color:#000;font-size:11px;padding:2px 7px;border-radius:6px;font-weight:600}
.scroll{flex:1;overflow:auto;padding:12px 14px}
.card{background:#fff;border-radius:20px;padding:18px;box-shadow:0 4px 18px #0f172a1a;margin-bottom:12px}
.kind{display:inline-flex;gap:6px;align-items:center;font-size:12px;font-weight:700;padding:4px 10px;border-radius:20px}
.k-hook{background:#ede9fe;color:#5b21b6}.k-concept{background:#dbeafe;color:#1e40af}.k-example{background:#e0f2fe;color:#075985}.k-warning{background:#fee2e2;color:#991b1b}.k-tip{background:#dcfce7;color:#166534}.k-takeaway{background:#fef3c7;color:#92400e}
.card h2{margin:10px 0 8px;font-size:24px;line-height:1.25}.card p{line-height:1.65;font-size:16px;margin:8px 0}
.hookq{font-size:56px;text-align:center;margin:6px 0}
.vis{background:#f8fafc;border-radius:14px;padding:8px;margin:10px 0}.vis svg{width:100%;display:block}.vis-cap{font-size:11px;color:#64748b;margin-top:4px;text-align:center}
.dg-desc{padding:18px;text-align:center;color:#475569;font-size:14px;border:2px dashed #cbd5e1;border-radius:12px}
.anim-pie svg path:first-child{animation:pop 1.6s ease-in-out infinite alternate;transform-origin:150px 95px}@keyframes pop{from{transform:scale(1)}to{transform:scale(1.06)}}
.take{background:#fffbeb;border:2px solid #fcd34d;border-radius:16px;padding:16px;font-size:19px;font-weight:700;text-align:center;line-height:1.5}
.ex{background:#eff6ff;border-right:4px solid #2563eb;padding:10px 12px;border-radius:10px;font-size:15px;line-height:1.55;margin:8px 0}
.risk{background:#fef2f2;color:#991b1b;padding:9px 12px;border-radius:10px;font-size:14px;margin-top:10px;line-height:1.5}
.ok-box{background:#f0fdf4;color:#166534;padding:9px 12px;border-radius:10px;font-size:14px;margin-top:10px}
.lv{font-size:12px;color:#64748b}.dn{color:#dc2626}.up{color:#16a34a}
.opt{display:block;width:100%;text-align:right;padding:13px 14px;margin:8px 0;border:2px solid #e2e8f0;border-radius:14px;background:#fff;font-size:16px;color:#0f172a;font-family:inherit}
.opt.ok{border-color:#22c55e;background:#f0fdf4}.opt.bad{border-color:#ef4444;background:#fef2f2}.opt.big{text-align:center;font-weight:700;background:#0f172a;color:#fff;border-color:#0f172a}
.opt.primary{background:#22c55e;border-color:#22c55e;color:#04210f;text-align:center;font-weight:700}
.fb{margin-top:10px;font-size:15px;line-height:1.55}
.navbtns{display:flex;gap:10px;padding:8px 14px 10px;background:#f1f5f9}.navbtns button{flex:1;padding:13px;border:0;border-radius:14px;font-size:16px;font-weight:700;font-family:inherit}
#next{background:#22c55e;color:#04210f}#prev{background:#cbd5e1;color:#0f172a}#prev:disabled{opacity:.4}
.ix{background:#f0f9ff;border:1px solid #bae6fd;border-radius:14px;padding:12px;margin-top:10px}.ix-h{font-weight:700;font-size:14px;color:#0369a1;margin-bottom:6px}
.ix-l{display:block;font-size:14px;margin:6px 0}.ix input[type=range]{width:100%;accent-color:#2563eb}.ix input[type=number],.box input{width:100%;padding:9px;border-radius:10px;border:1px solid #cbd5e1;font-size:16px;margin-top:4px}
.ix-out{margin-top:8px;font-size:15px;line-height:1.6}.row2{display:flex;gap:8px}.row2 label{flex:1}
.seg{display:flex;gap:6px;margin:6px 0}.seg button{flex:1;padding:8px;border-radius:10px;border:1px solid #cbd5e1;background:#fff;font-size:12px;font-family:inherit}.seg button.on{background:#0f172a;color:#fff;border-color:#0f172a}
/* chat */
.chat{background:#efeae2}.chat header.top{background:#075e54}.av{width:38px;height:38px;border-radius:50%;background:#25d366;display:grid;place-items:center;font-size:21px}
#log{flex:1;overflow:auto;padding:10px 12px}.m{max-width:84%;padding:8px 11px;border-radius:10px;margin:5px 0;line-height:1.5;font-size:15px;box-shadow:0 1px 1px #0002}
.m .who{display:block;font-size:11px;font-weight:700;margin-bottom:2px}.noa{background:#fff;border-top-right-radius:0}.noa .who{color:#c026d3}.bot{background:#e0f2fe;border-top-right-radius:0}.bot .who{color:#0369a1}
.me{background:#d9fdd3;margin-right:auto;border-top-left-radius:0}.sys{background:#fff3c4;font-size:12px;text-align:center;max-width:100%;margin:8px auto;width:fit-content}
.m svg{width:100%;background:#fff;border-radius:8px}
#btns{padding:8px;display:flex;flex-wrap:wrap;gap:6px;background:#f0f2f5;min-height:8px}#btns button{flex:1 1 45%;padding:11px;border:1px solid #cbd5e1;background:#fff;border-radius:20px;font-size:15px;color:#075e54;font-family:inherit}
.days{display:flex;gap:5px;overflow:auto;padding:8px 12px;background:#f0f2f5}.days button{border:1px solid #cbd5e1;background:#fff;border-radius:16px;padding:5px 10px;font-size:12px;white-space:nowrap;font-family:inherit}.days button.on{background:#075e54;color:#fff}.days button.done{border-color:#22c55e}
/* sim */
.sim{background:#0b1220;color:#e2e8f0}.sim header.top{background:#111a2e}.sim .scroll{padding:6px 0}.box{background:#111a2e;margin:8px 12px;border-radius:16px;padding:14px}.box h3{margin:0 0 8px;font-size:16px}
.sim .opt{background:#1e293b;border-color:#334155;color:#fff}.sim .opt.ok{border-color:#22c55e;background:#123020}.sim .opt.bad{border-color:#ef4444;background:#3b1111}.sim .opt.primary{background:#15803d;border-color:#15803d;color:#fff}
.sim .lv{color:#94a3b8}.sim .risk{background:#3b1111;color:#fecaca}.exp{background:#0f2a1c;border-radius:12px;padding:10px;margin-top:8px;line-height:1.55}.sim svg{width:100%;background:#0b1220;border-radius:10px}
.sim .seg button{background:#1e293b;color:#cbd5e1;border-color:#334155}.sim .seg button.on{background:#22c55e;color:#04210f}
.row{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid #1e293b;font-size:14px}
.badge{display:inline-block;margin:3px;padding:5px 9px;border-radius:20px;font-size:12px;background:#1e293b}.badge.on{background:#1d4ed8}
.meter{height:12px;background:#1e293b;border-radius:9px;overflow:hidden}.meter i{display:block;height:100%;background:linear-gradient(90deg,#ef4444,#f59e0b,#22c55e)}
.res{font-size:22px;font-weight:700;margin-top:10px}
/* progress */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}.stat{background:#fff;border-radius:16px;padding:12px;box-shadow:0 2px 10px #0f172a14}.stat b{font-size:24px;display:block}.stat small{color:#64748b}
.pbar{height:8px;background:#e2e8f0;border-radius:9px;margin-top:6px}.pbar i{display:block;height:100%;background:#22c55e;border-radius:9px}
.ring{display:grid;place-items:center;margin:4px auto 10px}.cgrid .crow{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid #e2e8f0;font-size:14px}
details summary{cursor:pointer;color:#2563eb;margin-top:6px}

.vis svg,.m svg,.sim svg{direction:ltr}.sim .box svg{max-height:170px}