/* Installation page */
.device-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin-bottom: 3rem; }
.dtab {
  padding: 0.7rem 1.4rem; font-size: 0.85rem; font-weight: 600;
  color: var(--muted); background: #fff; border: 1.5px solid rgba(0,0,0,0.1);
  border-radius: 999px; cursor: pointer; font-family: inherit;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.dtab:hover { border-color: rgba(229,9,20,0.3); }
.dtab.active { background: var(--red); color: #fff; border-color: var(--red); }
.device-panel { display: none; max-width: 780px; margin: 0 auto; }
.device-panel.active { display: block; }
.device-intro { display: flex; align-items: center; gap: 1rem; margin-bottom: 2rem; }
.device-intro-icon { font-size: 2.25rem; flex-shrink: 0; }
.device-intro h2 { font-size: 1.25rem; font-weight: 900; color: var(--ink); margin-bottom: 0.3rem; }
.device-intro p { font-size: 0.88rem; color: var(--muted); }
.guide-img { width: 100%; border-radius: var(--radius-md); margin-bottom: 0.5rem; aspect-ratio: 16/10; object-fit: cover; }
.guide-img-caption { font-size: 0.8rem; color: var(--muted); font-style: italic; text-align: center; margin-bottom: 2rem; }
.install-steps { display: flex; flex-direction: column; gap: 1.25rem; }
.install-step { display: flex; align-items: flex-start; gap: 1rem; }
.step-circle { width: 34px; height: 34px; flex-shrink: 0; background: var(--red); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.9rem; }
.install-step h3 { font-size: 0.95rem; font-weight: 700; color: var(--ink); margin-bottom: 0.3rem; }
.install-step p { font-size: 0.87rem; color: var(--muted); line-height: 1.6; }
.step-code { display: inline-block; font-family: 'Courier New', monospace; background: var(--bg); padding: 0.1rem 0.5rem; border-radius: 4px; font-size: 0.82rem; color: var(--ink); }
.help-strip {
  display: flex; align-items: center; gap: 1.25rem; max-width: 780px; margin: 3.5rem auto 0;
  background: rgba(37,211,102,0.06); border: 1px solid rgba(37,211,102,0.2);
  border-radius: var(--radius-md); padding: 1.5rem 1.75rem;
}
.help-strip p { font-size: 0.88rem; color: #3a3a5c; line-height: 1.6; margin: 0; }
.help-strip a { color: #16a34a; font-weight: 700; }