/* AirTrack3 ブラウザ版: 登録・ロックの解除の画面(地図の上に重ねる) */
#atbGate { position: fixed; inset: 0; z-index: 9999; background: var(--bg); overflow-y: auto; display: flex; justify-content: center; align-items: flex-start;
  padding: max(24px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom)); }
.atb-card { width: 100%; max-width: 460px; margin-top: 6vh; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.atb-brand { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.atb-brand span { color: var(--accent); font-weight: 600; }
.atb-card h2 { font-size: 17px; margin: 8px 0 10px; }
.atb-card label { display: block; margin: 12px 0 0; color: var(--muted); font-size: 13px; }
.atb-card input, .atb-card textarea { display: block; width: 100%; margin-top: 4px; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); font-size: 16px; }
.atb-card textarea { font-family: ui-monospace, Menlo, monospace; font-size: 13px; word-break: break-all; resize: vertical; }
.atb-row { margin-top: 8px; }
.atb-card button { padding: 10px 14px; font-size: 15px; }
.atb-primary { display: block; width: 100%; margin-top: 18px; background: var(--accent) !important; color: #fff; border-color: var(--accent) !important; font-weight: 600; }
.atb-primary:disabled { opacity: 0.6; }
.atb-note { color: var(--muted); font-size: 13px; line-height: 1.6; }
.atb-note.small { font-size: 12px; margin-top: 14px; }
.atb-card a { color: var(--accent); }
.atb-msg { margin-top: 12px; color: var(--danger); font-size: 14px; min-height: 1em; white-space: pre-wrap; }
/* スマートフォンの幅では、上の帯に収めるため「ブラウザ」を省く */
@media (max-width: 480px) { #bar .brand span { display: none; } }