:root{--navy:#102f45;--blue:#26657e;--sky:#dff4f1;--cream:#fffdf8;--ink:#10202d;--muted:#58707d;--line:#d9e2df;--green:#087d48;--green-bg:#e7f9ef;--red:#c82732;--red-bg:#fff0f0;--rose:#fff3f2;--shadow:0 18px 45px rgba(20,55,70,.12)}*{box-sizing:border-box}body{margin:0;background:linear-gradient(145deg,#eef8f7,#fffaf2 55%,#eaf4f4);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100vh}.app-shell{width:min(980px,calc(100% - 32px));margin:0 auto;padding:38px 0 24px}.brand{display:flex;align-items:center;gap:13px;margin-bottom:28px}.brand-mark{display:grid;place-items:center;width:45px;height:45px;border-radius:13px;background:var(--navy);color:#fff;font-size:1.5rem;font-weight:800;box-shadow:0 7px 18px #173b5540}.eyebrow,.kicker{font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--blue);margin:0 0 3px}.brand h1{font-size:1.25rem;margin:0}.screen{display:none}.screen.active{display:block}.hero-card,.game-card,.final-card{background:rgba(255,255,255,.86);border:1px solid rgba(193,211,207,.8);border-radius:25px;box-shadow:var(--shadow);padding:clamp(26px,5vw,50px)}.hero-card h2,.final-card h2{font-size:clamp(2rem,5vw,3.15rem);line-height:1.05;letter-spacing:-.045em;margin:5px 0 14px}.intro{max-width:510px;color:var(--muted);line-height:1.6;margin:0 0 30px}.level-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.level-card{appearance:none;text-align:left;background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px;cursor:pointer;color:var(--ink);display:grid;grid-template-columns:46px 1fr;column-gap:13px;transition:.18s transform,.18s border-color,.18s box-shadow}.level-card:hover,.level-card:focus-visible{transform:translateY(-3px);border-color:var(--blue);box-shadow:0 10px 25px #245b6c1d;outline:none}.level-icon{grid-row:span 3;display:grid;place-items:center;width:43px;height:43px;border-radius:12px;background:var(--sky);color:var(--navy);font-size:.77rem;font-weight:800}.level-card strong{font-size:1.05rem}.level-card span:not(.level-icon),.level-card small{color:var(--muted);font-size:.86rem;margin-top:3px}.custom-card .level-icon{background:#fff1ca;color:#8d5b00}.custom-form{margin-top:24px;background:#f1faf8;border-radius:17px;padding:22px}.hidden{display:none}.custom-form h3{margin:0 0 16px}.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.form-row label{font-weight:650;font-size:.85rem}.form-row input{display:block;width:100%;margin-top:6px;padding:10px;border:1px solid #b8cbc6;border-radius:9px;font:inherit}.form-error{color:var(--red);font-size:.85rem;min-height:1.25em}.primary{border:0;border-radius:11px;background:var(--navy);color:#fff;cursor:pointer;font:700 .95rem inherit;padding:13px 18px;box-shadow:0 7px 15px #16374930}.primary:hover{background:#1e4c68}.primary span{margin-left:10px}.game-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.progress{margin:4px 0 0;color:var(--muted);font-size:.9rem}.timer{font-variant-numeric:tabular-nums;font-size:1.55rem;font-weight:800;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 13px}.timer.urgent{color:var(--red);border-color:#ffbfc3;animation:pulse .85s infinite alternate}@keyframes pulse{to{transform:scale(1.05)}}.game-card{text-align:center}.prompt-label{margin:0;color:var(--muted);font-weight:650}.word-display{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:clamp(2.8rem,10vw,5.8rem);letter-spacing:.08em;margin:12px 0;color:var(--navy);overflow-wrap:anywhere}.instruction{margin:0;color:var(--muted)}.hint{font-size:.85rem;color:var(--muted);margin:12px 0 20px}.hint code,.expected code{background:#f0f4f4;color:var(--ink);padding:4px 8px;border-radius:8px;font-family:ui-monospace,monospace}textarea{width:100%;resize:vertical;border:2px solid #bcd1cd;border-radius:14px;padding:15px;font:1.05rem ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--ink);outline:none}textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px #68b3be2a}.game-actions{display:flex;justify-content:space-between;align-items:center;margin-top:17px}.text-button{border:0;background:transparent;color:var(--blue);font:650 .9rem inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.scorecard{border:1px solid #ffd5d1;background:var(--rose);border-radius:25px;padding:clamp(24px,5vw,38px);box-shadow:var(--shadow)}.scorecard.success{border-color:#bceacb;background:#effbf4}.scorecard h2{font-size:clamp(1.6rem,4vw,2.25rem);text-align:center;margin:0 0 24px}.scorecard h2.wrong{color:#a5212b}.scorecard h2.right{color:var(--green)}.scorecard p{line-height:1.55}.word-line{font-size:1.05rem;margin:0 0 15px}.answer-chips{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0 20px}.chip{padding:7px 11px;border-radius:999px;font:600 .85rem ui-monospace,monospace}.chip.correct{background:#d9f7e5;color:#097342}.chip.incorrect{background:#ffe0e1;color:#bd2029}.analysis{background:#fffafa;border-radius:20px;padding:17px}.success .analysis{background:#fbfffc}.analysis h3{margin:0 0 12px;font-size:1rem}.letter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.letter-item{border-radius:17px;padding:13px;border:1px solid}.letter-item.correct{background:#effcf4;border-color:#afeec5}.letter-item.incorrect{background:#fff5f5;border-color:#ffc7c9}.letter-status{display:flex;justify-content:space-between;font-size:.85rem}.letter-item .good{color:var(--green)}.letter-item .bad{color:var(--red)}.letter-item p{font-size:.88rem;margin:4px 0 0}.round-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:20px}.secondary{background:#fff;color:var(--navy);border:1px solid #b8cac6;border-radius:11px;padding:12px 17px;font:700 .95rem inherit;cursor:pointer}.final-card{text-align:center;max-width:680px;margin:auto}.trophy{display:grid;place-items:center;margin:auto;width:58px;height:58px;border-radius:18px;background:#fff0c9;color:#9b6500;font-size:1.8rem}.final-summary{color:var(--muted)}.final-stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0;padding:21px 0}.final-stats div+div{border-left:1px solid var(--line)}.final-stats strong{font-size:1.6rem;display:block;color:var(--navy)}.final-stats span{display:block;margin-top:4px;color:var(--muted);font-size:.78rem}.wide{width:100%}footer{text-align:center;padding:0 20px 28px;color:#6a818a;font-size:.78rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:560px){.app-shell{width:min(100% - 22px,980px);padding-top:20px}.brand{margin-bottom:18px}.level-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.game-actions{gap:14px;align-items:flex-end}.round-actions{justify-content:stretch}.round-actions button{flex:1}.analysis{padding:14px}.letter-grid{grid-template-columns:1fr}.final-stats strong{font-size:1.3rem}}
.nato-rotator{margin-left:auto;display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 12px;color:var(--navy);box-shadow:0 5px 12px #16374916}.nato-rotator span{display:grid;place-items:center;background:var(--sky);border-radius:7px;min-width:27px;height:27px;font-family:ui-monospace,monospace;font-weight:900}.nato-rotator b{font-size:.78rem;letter-spacing:.08em}.nato-rotator.hidden,.nato-reference.hidden{display:none}.nato-reference{margin:22px 0 0;border:1px solid var(--line);border-radius:17px;background:#ffffffa8;overflow:hidden}.nato-reference summary{cursor:pointer;padding:17px 20px;font-weight:750;color:var(--navy);list-style:none;display:flex;justify-content:space-between}.nato-reference summary::-webkit-details-marker{display:none}.nato-reference[open] summary span{transform:rotate(180deg)}.reference-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:9px;padding:0 18px 18px}.reference-item{display:flex;align-items:center;gap:8px;border:1px solid #dce8e5;border-radius:9px;background:#fff;padding:8px 10px;font-size:.82rem}.reference-item b{display:grid;place-items:center;min-width:25px;height:25px;border-radius:6px;background:var(--sky);color:var(--navy);font-family:ui-monospace,monospace}.reference-item span{font-weight:650;color:#345061}@media(max-width:560px){.nato-rotator{padding:7px 9px;gap:6px}.nato-rotator b{font-size:.68rem}.reference-list{grid-template-columns:repeat(2,1fr);padding:0 12px 12px}}