/* Install page — platform-tabs + snippet viewer */

.install-hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
}
.install-hero .crumb { margin-bottom: 20px; font-size: .9rem; }
.install-hero .crumb a { color: var(--text-soft); }
.install-hero .crumb a:hover { color: var(--gold); }
.install-hero h1 { margin: 0 0 6px; }
.install-hero .lead { max-width: 720px; margin: 0; }

.install-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) {
  .install-grid { grid-template-columns: 1fr; }
}

.platform-list {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  position: sticky; top: calc(var(--nav-h) + 12px);
}
.platform-list h4 {
  font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-mute); margin: 10px 12px 6px;
}
.platform-btn {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 9px 12px; border-radius: 9px;
  background: transparent; border: 0; color: var(--text-soft);
  cursor: pointer; font: inherit; font-size: .92rem; text-align: left;
  transition: background .15s, color .15s;
}
.platform-btn:hover { background: var(--bg-3); color: var(--text); }
.platform-btn.active { background: var(--gold-soft); color: var(--gold); }
.platform-btn i { width: 18px; text-align: center; font-size: 14px; }
.platform-btn .time {
  margin-left: auto; font-size: .72rem; color: var(--text-mute);
  background: var(--bg-3); padding: 2px 7px; border-radius: 99px;
}
.platform-btn.active .time { color: var(--gold); background: rgba(168,85,247,.12); }

.snippet-panel {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.snippet-panel h2 { margin-top: 0; display: flex; align-items: center; gap: 12px; }
.snippet-panel h2 i { color: var(--gold); }
.snippet-panel .lead { margin-bottom: 18px; }
.snippet-panel .steps {
  list-style: none; padding: 0; margin: 18px 0; counter-reset: s;
  display: flex; flex-direction: column; gap: 8px;
}
.snippet-panel .steps li {
  counter-increment: s; padding-left: 38px; position: relative;
  color: var(--text-soft); font-size: .95rem; padding-block: 4px;
}
.snippet-panel .steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--gold-soft); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .85rem;
}

.code-block {
  background: #07080d; border: 1px solid var(--line); border-radius: 10px;
  margin: 14px 0; overflow: hidden;
}
.code-head {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px; background: var(--bg-3);
  border-bottom: 1px solid var(--line); font-size: .85rem;
}
.code-head .file-name { color: var(--text-soft); font-family: var(--font-mono); }
.code-head .lang {
  margin-left: auto; font-size: .72rem; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-mute);
}
.code-head .copy-btn {
  background: var(--bg-4); border: 1px solid var(--line); color: var(--text-soft);
  padding: 4px 10px; border-radius: 6px; font: inherit; font-size: .8rem;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
.code-head .copy-btn:hover { color: var(--gold); border-color: var(--gold); }
.code-head .copy-btn.copied { color: var(--green); border-color: var(--green); }
.code-block pre {
  margin: 0; padding: 16px; overflow-x: auto;
  font-family: var(--font-mono); font-size: .85rem; line-height: 1.55;
  color: #d6dde8;
}

.install-key-card {
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; margin-bottom: 22px;
}
.install-key-card h3 { margin: 0 0 10px; display: flex; align-items: center; gap: 10px; }
.install-key-card h3 .badge {
  font-size: .7rem; text-transform: uppercase; letter-spacing: .08em;
  background: var(--gold-soft); color: var(--gold); padding: 3px 8px; border-radius: 4px;
}
.install-key-card.has-key h3 .badge { background: rgba(45,221,122,.12); color: var(--green); }
.install-key-card .key-display {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px 14px; font-family: var(--font-mono);
  font-size: .85rem; color: var(--text-soft);
}
.install-key-card .key-display code { background: transparent; padding: 0; flex: 1; word-break: break-all; }
.install-key-card .copy-btn {
  background: var(--bg-3); border: 1px solid var(--line); color: var(--text-soft);
  padding: 6px 10px; border-radius: 6px; font: inherit; font-size: .82rem;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
.install-key-card .copy-btn.copied { color: var(--green); border-color: var(--green); }

.register-form {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px;
}
@media (max-width: 600px) { .register-form { grid-template-columns: 1fr; } }
.register-form .field-full { grid-column: 1 / -1; }
.register-form label {
  display: block; font-size: .82rem; color: var(--text-mute);
  margin-bottom: 4px; font-weight: 500;
}
.register-form input {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 12px; font: inherit; font-size: .92rem;
}
.register-form input:focus { outline: 0; border-color: var(--gold); }
.register-form .form-actions { grid-column: 1 / -1; display: flex; gap: 10px; align-items: center; }
.register-form .form-actions .muted { font-size: .82rem; }

.install-test {
  margin-top: 22px; padding: 18px;
  background: var(--bg); border: 1px dashed var(--line); border-radius: 10px;
}
.install-test h4 { margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.install-test .test-result {
  margin-top: 10px; padding: 12px; border-radius: 8px;
  background: var(--bg-3); border: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .82rem; color: var(--text-soft);
  white-space: pre-wrap; max-height: 200px; overflow-y: auto;
}
.install-test .test-result.ok { border-color: var(--green); color: #b8f5d0; }
.install-test .test-result.err { border-color: var(--red); color: #ffb8b8; }