:root {
  --cream: #faf7f0;
  --green: #2e7d32;
  --green-dark: #1b5e20;
  --ink: #1a1a1a;
  --muted: #666;
  --err: #c0392b;
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--cream); color: var(--ink);
  display: grid; place-items: center; min-height: 100vh; margin: 0; padding: 1rem;
}
.card {
  background: #fff; border-radius: 16px; padding: 2rem; max-width: 520px; width: 100%;
  box-shadow: 0 8px 30px rgba(0,0,0,.06);
}
h1 { margin: 0 0 .25rem; font-size: 1.4rem; }
.sub { color: var(--muted); margin: 0 0 1.5rem; }
label { display: block; font-weight: 600; margin: 1rem 0 .35rem; }
input, textarea {
  width: 100%; padding: .65rem .75rem; border: 1px solid #ddd; border-radius: 8px;
  font: inherit; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
small { display: block; color: var(--muted); margin-top: .35rem; }
code { background: #f3f1ea; padding: .1rem .35rem; border-radius: 4px; }
button {
  margin-top: 1.5rem; width: 100%; padding: .75rem; border: 0; border-radius: 8px;
  background: var(--green); color: #fff; font-weight: 600; font-size: 1rem; cursor: pointer;
}
button:hover { background: var(--green-dark); }
button:disabled { opacity: .6; cursor: default; }
.result { margin-top: 1.25rem; padding: .85rem 1rem; border-radius: 8px; line-height: 1.5; }
.result.ok { background: #e8f5e9; color: var(--green-dark); }
.result.err { background: #fdecea; color: var(--err); }

/* Step labels */
.step {
  font-weight: 700; color: var(--green-dark); margin: 0 0 .5rem;
  font-size: .8rem; letter-spacing: .04em; text-transform: uppercase;
}
form .step { margin-top: 1.75rem; }

/* Step 1 helper panel */
.helper {
  background: #f7f5ee; border: 1px solid #ece8db; border-radius: 12px;
  padding: 1.1rem 1.1rem 1.25rem; margin-top: .5rem;
}
.helper-sub { color: var(--muted); margin: 0 0 .9rem; font-size: .92rem; line-height: 1.45; }

/* OS tabs */
.tabs { display: flex; gap: .4rem; margin-bottom: .85rem; }
.tab {
  width: auto; flex: 1; margin: 0; padding: .5rem .75rem; font-size: .95rem;
  background: #fff; color: var(--ink); border: 1px solid #ddd; border-radius: 8px;
  font-weight: 600;
}
.tab:hover { background: #fff; border-color: var(--green); }
.tab.is-active { background: var(--green); color: #fff; border-color: var(--green); }

/* Command row */
.cmd-help { color: var(--muted); font-size: .9rem; margin: 0 0 .5rem; line-height: 1.45; }
.cmd-row { display: flex; align-items: stretch; gap: .5rem; }
.cmd-row code {
  flex: 1; background: #1e1e1e; color: #e6e6e6; padding: .7rem .8rem; border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem;
  line-height: 1.45; white-space: pre-wrap; word-break: break-all; overflow-wrap: anywhere;
}
.copy {
  width: auto; flex: 0 0 auto; align-self: flex-start; margin: 0; padding: .55rem .9rem;
  font-size: .85rem; border-radius: 8px;
}
.copy.copied { background: var(--green-dark); }
kbd {
  background: #fff; border: 1px solid #ccc; border-bottom-width: 2px; border-radius: 4px;
  padding: 0 .3rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85em;
}
@media (max-width: 460px) {
  .cmd-row { flex-direction: column; }
  .copy { align-self: stretch; width: 100%; }
}

/* Deploy-skill section */
.skill {
  margin-top: 1.75rem; padding-top: 1.25rem; border-top: 1px solid #ece8db;
}
.skill-download {
  display: inline-block; margin: .25rem 0 1rem; padding: .7rem 1.1rem;
  background: var(--green); color: #fff; border-radius: 8px; font-weight: 600;
  text-decoration: none;
}
.skill-download:hover { background: var(--green-dark); }
.skill-steps { color: var(--ink); margin: 0; padding-left: 1.2rem; line-height: 1.6; }
.skill-steps li { margin-bottom: .35rem; }
.skill-advanced { margin-top: 1rem; color: var(--muted); font-size: .9rem; }
.skill-advanced summary { cursor: pointer; }
.skill-advanced pre {
  background: #1e1e1e; color: #e6e6e6; padding: .7rem .8rem; border-radius: 8px;
  overflow-x: auto; font-size: .8rem; margin-top: .5rem;
}