:root{--bg:#0a0e1a;--panel:#131a2e;--panel2:#1a2340;--line:#263156;--ink:#eef2ff;--muted:#8b96b8;--accent:#22d3ee;--accent2:#a78bfa;--win:#34d399;--lose:#f87171;--gold:#fbbf24}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font:16px/1.55 Inter,system-ui,-apple-system,sans-serif;min-height:100dvh}.wrap{max-width:680px;margin:0 auto;padding:0 16px}.topbar{padding:14px 0;display:flex;justify-content:space-between;align-items:center}.logo{font-weight:800;font-size:20px;letter-spacing:-.02em}.logo span{color:var(--accent)}.pill{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 12px}.hero{text-align:center;padding:40px 0 24px}.hero h1{font-size:clamp(30px,6vw,44px);line-height:1.1;margin:0 0 12px;font-weight:800;letter-spacing:-.02em}.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{color:var(--muted);max-width:460px;margin:0 auto 8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(90deg,var(--accent),var(--accent2));color:#0a0e1a;font-weight:800;font-size:17px;font-family:inherit;border:none;border-radius:14px;padding:15px 32px;cursor:pointer;transition:transform .1s,opacity .15s}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.btn.ghost{background:var(--panel2);color:var(--ink)}.btn.ghost,.card{border:1px solid var(--line)}.card{background:var(--panel);border-radius:18px;padding:20px}.scenario-intro{font-size:15px;color:var(--muted)}.scenario-intro b{color:var(--ink)}.chat{display:flex;flex-direction:column;gap:10px;padding:16px 0;min-height:220px}.bubble{max-width:82%;padding:11px 15px;border-radius:16px;font-size:15px;white-space:pre-wrap;animation:pop .18s ease}.bubble.customer{background:var(--panel2);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}.bubble.seller{background:linear-gradient(135deg,#0e7490,#155e75);border-bottom-right-radius:4px;align-self:flex-end}.bubble .who{display:block;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.6;margin-bottom:3px}@keyframes pop{0%{opacity:0;transform:translateY(6px)}}.typing{color:var(--muted);font-size:13px;padding:4px 2px}.inputrow{display:flex;gap:8px;padding:10px 0 24px;position:-webkit-sticky;position:sticky;bottom:0;background:var(--bg)}.inputrow input{flex:1 1;background:var(--panel);border:1px solid var(--line);border-radius:14px;color:var(--ink);font:inherit;font-size:16px;padding:13px 16px;outline:none}.inputrow input:focus{border-color:var(--accent)}.inputrow .btn{padding:13px 22px;font-size:15px}.turncount{text-align:center;color:var(--muted);font-size:12px;padding-bottom:6px}.scorehead{text-align:center;padding:8px 0 16px}.bignum{font-size:64px;font-weight:800;line-height:1}.vs{display:flex;justify-content:center;gap:28px;align-items:baseline;margin-top:6px}.vs .you .bignum{color:var(--accent)}.vs .ai .bignum{color:var(--gold);font-size:40px}.vs .lbl{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.verdict{font-weight:800;font-size:20px;margin-top:10px}.verdict.win{color:var(--win)}.verdict.lose{color:var(--lose)}.dims{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px 18px;gap:10px 18px;margin-top:14px}.dim .lbl{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-bottom:3px}.dim .lbl b{color:var(--ink)}.meter{height:7px;background:#0d1326;overflow:hidden}.meter,.meter i{border-radius:99px}.meter i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2))}.feedback{margin-top:16px;display:grid;grid-gap:10px;gap:10px}.fb{border-radius:12px;padding:12px 14px;font-size:14px}.fb.strength{background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.3)}.fb.improve{background:rgba(251,191,36,.07);border:1px solid rgba(251,191,36,.3)}.fb.comment{background:var(--panel2);border:1px solid var(--line);color:var(--muted);font-style:italic}.fb b{display:block;font-size:11px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px;font-style:normal}.fb.strength b{color:var(--win)}.fb.improve b{color:var(--gold)}.error{color:var(--lose);font-size:14px;padding:8px 0}.paywall{background:linear-gradient(135deg,#131a2e,#1a1440);border:1px solid var(--accent2);border-radius:18px;padding:22px;margin-top:20px}.selllist{list-style:none;padding:0;margin:10px 0}.selllist li{padding:4px 0 4px 26px;position:relative;color:var(--muted);font-size:14.5px}.selllist li:before{content:"✓";position:absolute;left:2px;color:var(--win);font-weight:700}.modlist{display:grid;grid-gap:10px;gap:10px;padding:18px 0 30px}.modrow{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;color:var(--ink);text-decoration:none;transition:border-color .15s,transform .1s}.modrow:not(.locked):hover{border-color:var(--accent);transform:translateY(-1px)}.modrow.locked{opacity:.45;cursor:default}.modrow.done{border-color:rgba(52,211,153,.4)}.modnum{width:38px;height:38px;border-radius:50%;background:var(--panel2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}.modrow.done .modnum{background:rgba(52,211,153,.15);color:var(--win);border-color:rgba(52,211,153,.4)}.meta-line{font-size:12.5px;margin-top:2px}.go,.meta-line{color:var(--muted)}.go{font-size:22px}footer{text-align:center;color:var(--muted);font-size:12px;padding:30px 0}.spin{display:inline-block;width:15px;height:15px;border:2px solid;border-top:2px solid transparent;border-radius:50%;animation:sp .7s linear infinite;vertical-align:-2px}@keyframes sp{to{transform:rotate(1turn)}}.certframe{background:linear-gradient(160deg,#131a2e,#10182e 60%,#1a1440);border:2px solid var(--gold);border-radius:22px;padding:34px 28px;margin-top:14px}.voicebtn{background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 14px;font:600 12px Inter,sans-serif;cursor:pointer}.voicebtn.on{color:var(--accent);border-color:var(--accent)}@media print{body{background:#fff;color:#111}.noprint{display:none!important}.certframe{border-color:#b8860b;background:#fff;color:#111}.certframe .card,.certframe .fb{background:#fff;border-color:#ddd;color:#111}.certframe .dim .lbl,.certframe .lbl,.certframe .scenario-intro{color:#444}.meter{background:#eee}}