:root {
  --bg: #0b141a;
  --panel: #111b21;
  --panel-2: #182229;
  --line: #2a3942;
  --text: #e9edef;
  --muted: #8696a0;
  --green: #00a884;
  --green-2: #25d366;
  --danger: #f15c6d;
  --radius: 16px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 80% -10%, #103b32 0%, transparent 60%), var(--bg);
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
.view { min-height: 100%; }
.centered { display: grid; place-items: center; padding: 24px; }
.muted { color: var(--muted); font-size: 14px; line-height: 1.5; }

.brand { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 22px; }
.brand h1 { font-size: 20px; margin: 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.card-head h2 { font-size: 16px; margin: 0; }

/* Auth */
.auth-card { width: 100%; max-width: 380px; display: grid; gap: 14px; }
.auth-card .muted { margin: -4px 0 6px; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
}
input:focus { border-color: var(--green); }

/* Buttons */
.btn {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  padding: 11px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.05s ease, background 0.15s ease, opacity 0.15s ease;
}
.btn:hover { background: #1f2c33; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--green); border-color: var(--green); color: #04231c; }
.btn.primary:hover { background: var(--green-2); }
.btn.ghost { background: transparent; }
.btn.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: rgba(241, 92, 109, 0.12); }
.btn.sm { padding: 8px 12px; font-size: 13px; }

/* Topbar + grid */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(11, 20, 26, 0.85); backdrop-filter: blur(8px);
}
.grid {
  display: grid; gap: 18px; padding: 24px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  max-width: 920px; margin: 0 auto;
}

/* Status */
.pill {
  font-size: 12px; font-weight: 700; padding: 5px 10px; border-radius: 999px;
  background: #3a2a2e; color: var(--danger); border: 1px solid transparent;
}
.pill.ok { background: rgba(0, 168, 132, 0.16); color: var(--green-2); }
.pill.warn { background: rgba(240, 189, 79, 0.16); color: #f0bd4f; }
.kv { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.kv span { color: var(--muted); font-size: 13px; }
#unlink-btn { margin-top: 16px; width: 100%; }

/* QR */
.qr-wrap {
  display: grid; place-items: center;
  background: #fff; border-radius: 12px; padding: 12px; margin: 12px 0;
  min-height: 232px;
}
.qr-wrap img { width: 100%; max-width: 240px; image-rendering: pixelated; display: block; }
.steps { color: var(--muted); font-size: 13px; padding-left: 18px; line-height: 1.9; margin: 8px 0 0; }
.pairing {
  font-family: ui-monospace, monospace; font-size: 26px; letter-spacing: 4px;
  text-align: center; background: var(--panel-2); border: 1px dashed var(--line);
  border-radius: 10px; padding: 14px; margin-top: 8px;
}

/* API key */
.key-row { display: flex; gap: 8px; align-items: center; margin-top: 4px; }
.key {
  flex: 1; background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 12px; font-family: ui-monospace, monospace;
  font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.snippet { margin-top: 14px; }
.snippet summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.snippet pre {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px; overflow-x: auto; font-size: 12px; margin-top: 10px;
}

.error { color: var(--danger); font-size: 13px; margin: 0; }
.footnote { text-align: center; color: var(--muted); font-size: 12px; padding: 8px 24px 32px; }

/* Spinner */
.spinner {
  width: 28px; height: 28px; border-radius: 50%;
  border: 3px solid rgba(0, 0, 0, 0.15); border-top-color: var(--green);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }