:root{
  --bg:#0a0710;
  --panel:#140d1f;
  --panel-2:#1d1430;
  --ink:#efe9f7;
  --muted:#9a8fb0;
  --line:#2c2140;
  --purple:#bb24ed;
  --lime:#c7f900;
  --warm:#ffd36b;
  --danger:#ff5c7a;
  --radius:16px;
}

*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:
    radial-gradient(1100px 700px at 18% -10%, rgba(187,36,237,.18), transparent 60%),
    radial-gradient(900px 600px at 110% 120%, rgba(199,249,0,.08), transparent 55%),
    var(--bg);
  color:var(--ink);
  font-family:"Bricolage Grotesque", system-ui, sans-serif;
  display:grid;place-items:center;
  padding:18px;
  min-height:100%;
}

/* subtle CRT scanline depth */
.scanlines{
  position:fixed;inset:0;pointer-events:none;z-index:5;
  background:repeating-linear-gradient(transparent 0 3px, rgba(0,0,0,.06) 3px 4px);
  mix-blend-mode:multiply;opacity:.5;
}

.shell{width:min(680px,100%)}

.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.brand{
  font-weight:800;letter-spacing:.14em;font-size:.82rem;text-transform:uppercase;
  display:flex;align-items:center;gap:9px;color:var(--ink);
}
.brand .mission{color:var(--muted);font-weight:600;letter-spacing:.08em}
.dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 12px var(--lime)}

.progress{display:flex;gap:6px}
.pip{width:11px;height:11px;border-radius:50%;border:1.5px solid var(--line);transition:.25s}
.pip.done{background:var(--lime);border-color:var(--lime);box-shadow:0 0 9px rgba(199,249,0,.6)}
.pip.current{border-color:var(--purple);box-shadow:0 0 9px rgba(187,36,237,.6)}

.card{
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 16px;
  box-shadow:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.04);
}

.card-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}
.card-no{
  font-family:"Space Mono",monospace;font-weight:700;
  font-size:.78rem;color:var(--bg);background:var(--lime);
  padding:4px 8px;border-radius:7px;margin-top:4px;
}
.card-title{font-size:1.5rem;line-height:1.1;margin:0 0 5px;font-weight:800}
.card-instruction{margin:0;color:var(--muted);font-size:.98rem;line-height:1.45}

.intercept{
  border:1px dashed #4a3568;border-radius:12px;
  background:rgba(0,0,0,.28);
  padding:14px 16px;margin-bottom:14px;
}
.intercept-label{
  font-family:"Space Mono",monospace;font-size:.62rem;letter-spacing:.18em;
  color:var(--danger);margin-bottom:10px;
}
.code{
  font-family:"Space Mono",monospace;font-weight:700;
  font-size:clamp(1.3rem,5vw,2rem);letter-spacing:.12em;
  color:#c4b6dd;word-break:break-word;line-height:1.3;
  transition:color .5s, text-shadow .5s;
}
.code.cracked{color:var(--warm);text-shadow:0 0 22px rgba(255,211,107,.55)}
.crib{margin:10px 0 0;color:var(--lime);font-size:.85rem;font-family:"Space Mono",monospace}

.strip-toggle{
  background:none;border:none;color:var(--muted);cursor:pointer;
  font-family:inherit;font-size:.85rem;padding:0;margin:0 0 8px;
}
.strip-toggle:hover{color:var(--ink)}
.strip{
  display:grid;grid-template-columns:repeat(13,1fr);gap:4px;margin-bottom:14px;
}
.strip .cell{
  text-align:center;border:1px solid var(--line);border-radius:6px;padding:5px 0;
  background:rgba(255,255,255,.02);
}
.strip .cell b{display:block;font-size:.9rem;color:var(--ink)}
.strip .cell span{display:block;font-size:.66rem;color:var(--muted);font-family:"Space Mono",monospace}

.solve-label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:7px;letter-spacing:.02em}
.solve-row{display:flex;gap:9px}
.answer{
  flex:1;background:#0d0916;border:1.5px solid var(--line);border-radius:11px;
  color:var(--ink);font-family:"Space Mono",monospace;font-size:1.05rem;
  padding:13px 14px;outline:none;transition:border-color .2s,box-shadow .2s;
}
.answer:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(187,36,237,.18)}
.answer.shake{animation:shake .35s}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}

.check{
  background:var(--lime);color:#0a0710;border:none;border-radius:11px;
  font-family:inherit;font-weight:800;font-size:1rem;padding:0 20px;cursor:pointer;
  letter-spacing:.02em;transition:transform .08s, filter .2s;
}
.check:hover{filter:brightness(1.08)}
.check:active{transform:translateY(1px)}

.feedback{min-height:1.2em;margin:11px 2px 0;font-size:.92rem;font-weight:600}
.feedback.good{color:var(--lime)}
.feedback.bad{color:var(--danger)}

.card-foot{display:flex;justify-content:space-between;margin-top:18px;
  border-top:1px solid var(--line);padding-top:14px}
.ghost{background:none;border:1px solid var(--line);color:var(--muted);
  border-radius:10px;padding:9px 16px;cursor:pointer;font-family:inherit;font-weight:600}
.ghost:hover{color:var(--ink);border-color:var(--muted)}
.next{
  background:var(--purple);color:#fff;border:none;border-radius:10px;
  padding:9px 22px;cursor:pointer;font-family:inherit;font-weight:800;
  transition:opacity .2s,transform .08s;
}
.next:disabled{opacity:.32;cursor:not-allowed}
.next:not(:disabled):hover{filter:brightness(1.1)}
.next:not(:disabled):active{transform:translateY(1px)}

.dev{position:fixed;bottom:12px;left:12px;z-index:6;display:flex;gap:8px;align-items:center;
  background:rgba(0,0,0,.6);border:1px solid var(--line);border-radius:10px;padding:6px 10px}
.dev span{font-family:"Space Mono",monospace;font-size:.6rem;letter-spacing:.16em;color:var(--lime)}
.dev button{background:none;border:1px solid var(--line);color:var(--muted);border-radius:7px;
  padding:4px 9px;font-family:inherit;cursor:pointer;font-size:.78rem}
.dev button:hover{color:var(--ink)}

.win{text-align:center;padding:14px 0}
.win h1{font-size:1.8rem;margin:.2em 0}
.win p{color:var(--muted)}
.win .stamp{display:inline-block;border:3px solid var(--lime);color:var(--lime);
  border-radius:10px;padding:6px 16px;font-weight:800;letter-spacing:.12em;
  transform:rotate(-6deg);font-size:1.1rem;margin-bottom:10px}

/* Single-puzzle embed (?p=N): one cipher per Launchpad card — hide multi-puzzle chrome */
body.single .progress,
body.single .card-foot{display:none}
body.single .topbar{justify-content:flex-start}