:root { --bg: #0b0b12; --card: #161624; --line: #2a2a3d; --text: #e9e9f2; --muted: #9a9ab0; --lime: #b6f23c; --violet: #8b5cf6; }
[hidden] { display: none !important; }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
header { display: flex; align-items: center; gap: .8rem; padding: .6rem 1rem; border-bottom: 1px solid var(--line); }
header #info { flex: 1; font-size: .85rem; }
.lime { color: var(--lime); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.card { max-width: 560px; margin: 1.2rem auto; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 1.1rem; }
h1 { margin: 0 0 .6rem; font-size: 1.4rem; }
label { display: block; margin: .7rem 0; font-size: .9rem; color: var(--muted); }
input { display: block; width: 100%; margin-top: .3rem; padding: .65rem .8rem; border-radius: 10px; border: 1px solid var(--line); background: #0d0d16; color: var(--text); font: inherit; font-family: ui-monospace, monospace; }
.btn { background: var(--lime); color: #111; border: 0; border-radius: 10px; padding: .65rem 1rem; font-weight: 700; font-size: 1rem; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); padding: .35rem .7rem; font-size: .85rem; }
.btn:disabled { opacity: .5; }
#termbox { position: fixed; inset: 49px 0 0 0; display: flex; flex-direction: column; }
#term { flex: 1; min-height: 0; padding: 4px; }
#keys { display: flex; gap: 4px; overflow-x: auto; padding: 6px; border-top: 1px solid var(--line); background: var(--card); padding-bottom: max(6px, env(safe-area-inset-bottom)); }
#keys button { flex: 0 0 auto; min-width: 44px; padding: .45rem .6rem; border-radius: 8px; border: 1px solid var(--line); background: #0d0d16; color: var(--text); font: 14px ui-monospace, monospace; }
@media (min-width: 900px) { #keys { display: none; } }