:root {
  --bg: #0f1115;
  --card: #1a1d24;
  --border: #2a2e37;
  --text: #e6e8eb;
  --muted: #8a8f98;
  --accent: #4f8cff;
  --danger: #e5484d;
  --ok: #3ecf8e;
}
* { box-sizing: border-box; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, Segoe UI, Roboto, sans-serif;
  margin: 0;
  padding: 0;
}
.hidden { display: none !important; }
.screen { min-height: 100vh; }
.login-box {
  max-width: 360px;
  margin: 15vh auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}
.login-box input {
  width: 100%;
  padding: 10px;
  margin: 12px 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11131a;
  color: var(--text);
}
button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
button:hover { opacity: 0.9; }
.error { color: var(--danger); min-height: 20px; margin-top: 8px; font-size: 13px; }

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.add-device {
  display: flex;
  gap: 8px;
  padding: 16px 24px;
}
.add-device input {
  flex: 1;
  max-width: 320px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11131a;
  color: var(--text);
}
#devices {
  padding: 0 24px 40px;
  display: grid;
  gap: 16px;
}
.device-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.device-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.device-header h2 { margin: 0; font-size: 18px; }
.online-badge {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #333;
  color: var(--muted);
}
.online-badge.online { background: rgba(62,207,142,0.15); color: var(--ok); }
.delete-device-btn { margin-left: auto; background: var(--danger); }
.device-meta { color: var(--muted); font-size: 13px; line-height: 1.8; }
.device-controls { display: flex; gap: 8px; margin: 14px 0; flex-wrap: wrap; }
.unlock-now-btn { background: var(--ok); }
.clear-lock-btn { background: #555; }
.policy-form {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 10px;
}
.policy-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.policy-form input, .policy-form select, .policy-form textarea {
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11131a;
  color: var(--text);
  font-family: inherit;
}
.hint { font-size: 12px; color: var(--muted); }
.save-status { font-size: 12px; color: var(--ok); margin-left: 8px; }
.logs { max-height: 200px; overflow-y: auto; font-size: 12px; color: var(--muted); margin-top: 8px; }
.logs div { padding: 4px 0; border-bottom: 1px solid var(--border); }
code { background: #11131a; padding: 2px 6px; border-radius: 4px; }