* { box-sizing: border-box; }
:root {
  --bg: #0d0f12; --bg-2: #15181d; --bg-3: #1e232b;
  --border: #232830; --text: #e6e9ee; --muted: #8b95a6;
  --accent: #2563eb; --accent-hover: #1d4ed8;
  --ok: #6ee7b7; --ok-bg: #064e3b;
  --err: #fca5a5; --err-bg: #4c1d24;
}

html, body { margin: 0; padding: 0; min-height: 100%; background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, sans-serif; }
a { color: #93c5fd; }
a:hover { color: #bfdbfe; }
button { font: inherit; }

header {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 16px; background: var(--bg-2); border-bottom: 1px solid var(--border);
}
header h1 { margin: 0 14px 0 0; font-size: 16px; font-weight: 600; }
header nav { display: flex; gap: 4px; }
header .spacer { flex: 1; }
.navbtn {
  background: transparent; color: var(--muted); border: 0; padding: 6px 12px;
  border-radius: 4px; cursor: pointer;
}
.navbtn:hover { background: var(--bg-3); color: var(--text); }
.navbtn.active { background: var(--bg-3); color: var(--text); }
.link { background: transparent; border: 0; color: var(--muted); cursor: pointer; }
.link:hover { color: var(--text); }
#me { color: var(--muted); font-size: 13px; }

main { padding: 24px 16px; max-width: 1024px; margin: 0 auto; }
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 13px; }
.center { text-align: center; }
.row { display: flex; align-items: center; gap: 12px; }
.row.between { justify-content: space-between; }

.card {
  max-width: 380px; margin: 80px auto; padding: 24px;
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 8px;
}
.card form { display: flex; flex-direction: column; gap: 12px; }

label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 4px; }
input {
  background: var(--bg-3); color: var(--text); border: 1px solid var(--border);
  padding: 8px 10px; border-radius: 4px; font: inherit;
}
input:focus { outline: 1px solid var(--accent); }

button[type="submit"], #new-device, #invite-submit {
  background: var(--accent); color: white; border: 0; padding: 8px 14px;
  border-radius: 4px; cursor: pointer; align-self: flex-start;
}
button[type="submit"]:hover, #new-device:hover, #invite-submit:hover { background: var(--accent-hover); }

.error { color: var(--err); background: var(--err-bg); padding: 6px 10px; border-radius: 4px; font-size: 13px; }

table.grid { width: 100%; border-collapse: collapse; margin-top: 8px; }
.grid th, .grid td {
  padding: 10px 12px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.grid th { font-weight: 500; color: var(--muted); font-size: 12px; }
.grid td .badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; }
.badge.online { background: var(--ok-bg); color: var(--ok); }
.badge.offline { background: #1f2937; color: #9ca3af; }
.badge.pending { background: #422006; color: #fbbf24; }

.connect-btn { background: var(--accent); color: white; border: 0; padding: 5px 12px; border-radius: 4px; cursor: pointer; }
.connect-btn:disabled { background: #374151; cursor: not-allowed; }
.connect-btn:hover:not(:disabled) { background: var(--accent-hover); }

.row-actions { display: flex; gap: 8px; justify-content: flex-end; }
.icon-btn {
  background: transparent; color: var(--muted); border: 1px solid transparent;
  width: 28px; height: 28px; padding: 0; border-radius: 4px;
  cursor: pointer; font-size: 13px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:hover { color: var(--text); border-color: var(--border); background: var(--bg-3); }
.icon-btn.danger:hover { color: var(--err); border-color: var(--err); background: var(--err-bg); }

dialog {
  background: var(--bg-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px; min-width: 360px;
}
dialog::backdrop { background: rgba(0,0,0,0.5); }
dialog form { display: flex; flex-direction: column; gap: 12px; }
dialog menu { display: flex; gap: 8px; justify-content: flex-end; padding: 0; margin: 4px 0 0; }
dialog button { background: var(--bg-3); color: var(--text); border: 1px solid var(--border); padding: 6px 12px; border-radius: 4px; cursor: pointer; }

/* Loading state: button shows a spinner glyph + dims while a request is in flight. */
button[aria-busy="true"] {
  position: relative; color: transparent !important; pointer-events: none; opacity: 0.7;
}
button[aria-busy="true"]::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid currentColor; border-top-color: transparent;
  color: white;
  animation: rdp-spin 0.7s linear infinite;
}
@keyframes rdp-spin { to { transform: rotate(360deg); } }

/* Invite-sent dialog: email delivery status + copyable URL row. */
.email-status {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 4px; font-size: 13px; margin: 4px 0 12px;
}
.email-status.ok   { background: var(--ok-bg);  color: var(--ok); }
.email-status.fail { background: var(--err-bg); color: var(--err); }
.email-status .detail { color: inherit; opacity: 0.85; font-size: 12px; }

.copy-row {
  display: flex; gap: 6px; align-items: stretch;
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 4px;
  padding: 4px;
}
.copy-row input {
  flex: 1; border: 0; background: transparent; padding: 4px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px;
  color: var(--text);
}
.copy-row input:focus { outline: none; }
#invite-copy {
  background: var(--accent); color: white; border: 0;
  padding: 4px 12px; border-radius: 3px; cursor: pointer; font-size: 13px;
  min-width: 70px;
}
#invite-copy:hover { background: var(--accent-hover); }
#invite-copy.copied { background: var(--ok-bg); color: var(--ok); }