:root{
    --bg:#0c1117;
    --panel:#101823;
    --ink:#e6edf3;
    --muted:#9fb0c2;
    --accent:#60d394;
    --danger:#ff6b6b;
    --shadow:0 10px 30px rgba(0,0,0,.35);
    --radius:16px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Inter,Arial,sans-serif;
}

.container{
    max-width:900px;
    margin:5vh auto;
    padding:24px;
}

.header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:24px;
}

.logo{
    font-size:28px;
    font-weight:800;
    letter-spacing:.5px;
    text-shadow:1px 0 3px #000; /* твоя фирменная тень */
}

.lang-switch{
    display:flex;
    gap:8px;
    background:var(--panel);
    border-radius:999px;
    padding:6px;
    box-shadow:var(--shadow);
}

.lang-btn{
    appearance:none;
    border:0;
    padding:8px 12px;
    border-radius:999px;
    color:var(--muted);
    background:transparent;
    cursor:pointer;
    font-weight:700;
    transition:transform .12s ease, color .12s ease, background .12s ease;
}
.lang-btn[aria-pressed="true"]{
    background:var(--accent);
    color:#0b1218;
    transform:translateY(-1px);
}
.lang-btn:hover{color:var(--ink)}

.generate-btn{
    width:100%;
    display:block;
    text-align:center;
    background:var(--accent);
    color:#0b1218;
    font-weight:800;
    padding:14px 20px;
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    border:0;
    cursor:pointer;
    transition:transform .12s ease, filter .12s ease;
    margin-bottom:16px;
}
.generate-btn:hover{filter:brightness(1.05)}
.generate-btn:active{transform:translateY(1px)}

.head{
    margin:8px 0 20px;
    font-size:20px;
    color:var(--muted);
}

.conditions{
    display:grid;
    gap:12px;
    margin-bottom:22px;
}

.condition{
    display:grid;
    grid-template-columns:120px 1fr;
    gap:12px;
    align-items:center;
}
.chboxl{
    background:var(--panel);
    border-radius:var(--radius);
    padding:14px 10px;
    text-align:center;
    font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size:22px;
    font-weight:900;
    letter-spacing:2px;
    text-shadow:1px 0 3px #000; /* как просил для иконок/цифр */
    box-shadow:var(--shadow);
}
.chboxr{
    color:var(--ink);
    background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(0,0,0,.08));
    border:1px solid rgba(255,255,255,.06);
    border-radius:var(--radius);
    padding:14px 16px;
}

.answer{
    margin-top:26px;
    display:grid;
    grid-template-columns:120px 1fr;
    gap:12px;
    align-items:center;
}

.inputs{
    display:flex;
    align-items:center;
    gap:12px;
}

.codeInput{
    width:64px;
    height:64px;
    background:var(--panel);
    border:1px solid rgba(255,255,255,.06);
    border-radius:14px;
    color:var(--ink);
    font-size:28px;
    font-weight:900;
    text-align:center;
    letter-spacing:1px;
    outline:none;
    box-shadow:var(--shadow);
    transition:border-color .12s ease, transform .08s ease;
}
.codeInput:focus{
    border-color:var(--accent);
    transform:translateY(-1px);
}

.result{
    min-height:1em;
    color:var(--muted);
    margin-left:8px;
}

/* mobile tweaks */
@media (max-width:640px){
    .condition, .answer{
        grid-template-columns:1fr;
    }
    .logo{font-size:24px}
    .chboxl{font-size:20px}
    .codeInput{width:60px;height:60px}
}