:root{--bg: #0c0e14;--panel: #161a26;--panel-2: #1f2536;--edge: #2c3550;--ink: #eaeefb;--muted: #8b94b4;--dim: #555f7e;--accent: #5bd6c0;--gold: #ffce5a;--warn: #ff6b81;--sel: #2a3a5c;font-family:Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 600px at 50% -10%,#161a28 0%,var(--bg) 60%);color:var(--ink);display:flex;justify-content:center;-webkit-font-smoothing:antialiased}#app{width:min(820px,100%);padding:14px 16px 36px}.topbar{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}.title{font-weight:800;letter-spacing:.5px;font-size:19px}.title .k{color:var(--accent)}.spacer{flex:1}button{font:inherit;cursor:pointer;color:var(--ink);background:var(--panel-2);border:1px solid var(--edge);border-radius:10px;padding:7px 12px;transition:transform .06s,background .15s}button:hover:not(:disabled){background:#28304a}button:active:not(:disabled){transform:translateY(1px)}button:disabled{opacity:.5;cursor:default}button.primary{background:linear-gradient(180deg,#5bd6c0,#25a78d);border-color:#82ecd6;color:#042720;font-weight:700}.icon-btn{padding:7px 10px}.seg{display:inline-flex;border:1px solid var(--edge);border-radius:10px;overflow:hidden}.seg button{border:0;border-radius:0;padding:7px 12px;font-size:13px;background:transparent}.seg button.on{background:var(--panel-2);color:#fff;font-weight:700}.seg button+button{border-left:1px solid var(--edge)}.hud{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--muted);margin-bottom:12px}.hud b{color:var(--ink)}.hud .bar{flex:1;height:8px;background:#0c0e16;border:1px solid var(--edge);border-radius:5px;overflow:hidden;max-width:220px}.hud .bar>div{height:100%;background:linear-gradient(90deg,var(--accent),var(--gold));transition:width .2s}.crypt{background:var(--panel);border:1px solid var(--edge);border-radius:14px;padding:18px 16px;line-height:2.7;margin-bottom:14px}.word{display:inline-flex;margin:0 10px 8px 0;white-space:nowrap}.cell{display:inline-flex;flex-direction:column;align-items:center;width:22px;cursor:pointer}.cell .pl{font:700 19px/1 Consolas,ui-monospace,monospace;height:22px;display:flex;align-items:center;color:var(--ink)}.cell .pl.blank{color:var(--dim)}.cell .ci{font:600 11px/1 Consolas,ui-monospace,monospace;color:var(--muted);margin-top:3px;letter-spacing:.5px}.cell .rule{width:18px;height:2px;background:var(--edge);margin-top:2px;border-radius:2px}.cell.sel .rule{background:var(--accent);height:3px}.cell.sel .pl{color:var(--accent)}.cell.hl .ci{color:var(--gold)}.cell.hl .rule{background:#4a5680}.cell.punct{width:auto;cursor:default}.cell.punct .pl{color:var(--muted)}.cell.just-revealed .pl{animation:pop .4s;color:var(--gold)}@keyframes pop{0%{transform:scale(1.5)}}.freq{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:6px}.fk{min-width:30px;padding:4px 2px 3px;text-align:center;border-radius:8px;background:var(--panel-2);border:1px solid var(--edge);cursor:pointer;user-select:none}.fk:hover{background:#283049}.fk.used{opacity:.42}.fk .l{font-weight:700;font-size:13px}.fk .n{font-size:10px;color:var(--muted);display:block}.note{color:var(--muted);font-size:12px;text-align:center;margin-top:8px}.note b{color:var(--ink)}.overlay{position:fixed;inset:0;background:#080a10d6;backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:20}.modal{background:var(--panel);border:1px solid var(--edge);border-radius:16px;padding:22px;width:min(440px,92%);text-align:center;box-shadow:0 10px 30px #00000080}.modal h2{margin:0 0 6px}.modal p{color:var(--muted);margin:0 0 12px;font-size:14px}.modal .quote{color:var(--ink);font-size:16px;font-style:italic;margin:10px 0}.modal .row{display:flex;gap:8px;justify-content:center;margin-top:16px;flex-wrap:wrap}.stat-line{color:var(--muted);font-size:14px;margin:3px 0}.stat-line b{color:var(--accent)}.help-content{text-align:left;max-height:66vh;overflow-y:auto}.help-content h3{margin:12px 0 4px;color:var(--accent);font-size:14px}.help-content p,.help-content li{color:var(--muted);font-size:13px;line-height:1.5}.help-content ul{margin:4px 0;padding-left:18px}.help-content b{color:var(--ink)}