:root {
  --bg: #0f1216;
  --panel: #1a1f26;
  --text: #e8ebef;
  --muted: #8b96a5;
  --green: #2ecc71;
  --amber: #f39c12;
  --red: #e74c3c;
  --border: #2a313b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 20px;
  margin: 0;
  font-weight: 600;
}

.client-name {
  color: var(--muted);
  font-weight: 400;
  font-size: 14px;
}

.logout-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
}
.logout-btn:hover { color: var(--text); border-color: var(--muted); }

.source-group {
  margin-bottom: 28px;
}

.source-group h2 {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}

.auto-refresh {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}

main {
  padding: 24px 28px;
}

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 60px 0;
  font-size: 15px;
}

.item-grid-inner {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.item-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 5px solid var(--muted);
  border-radius: 10px;
  padding: 16px 18px;
}

.item-card.status-green { border-left-color: var(--green); }
.item-card.status-amber { border-left-color: var(--amber); }
.item-card.status-red { border-left-color: var(--red); }

.item-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  word-break: break-word;
}

.item-age {
  font-size: 13px;
  margin-bottom: 12px;
}

.status-green .item-age { color: var(--green); }
.status-amber .item-age { color: var(--amber); }
.status-red .item-age { color: var(--red); }

.item-meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

.threshold-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.threshold-row input {
  width: 64px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 12px;
}

.threshold-row .saved-tick {
  color: var(--green);
  opacity: 0;
  transition: opacity 0.3s;
}

.threshold-row .saved-tick.show {
  opacity: 1;
}

/* ---- Source group header, add/delete controls, extra item states ---- */
.source-group h2 {
  display: flex;
  align-items: center;
  gap: 10px;
}
.source-group h2 .source-title { flex: 1; }

.agent-pill {
  font-size: 11px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.agent-pill.ok { color: var(--green); border-color: var(--green); }
.agent-pill.bad { color: var(--red); border-color: var(--red); }

.add-item-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
}
.add-item-btn:hover { border-color: var(--muted); }

.group-empty {
  color: var(--muted);
  font-size: 13px;
  padding: 6px 0;
}

.item-card { position: relative; }
.item-card.status-grey { border-left-color: var(--muted); }
.status-grey .item-age { color: var(--muted); }

.item-sub { font-size: 12px; color: var(--muted); margin: -2px 0 8px; word-break: break-word; }
.item-error { font-size: 12px; color: var(--red); margin-bottom: 10px; line-height: 1.4; }

.delete-item-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 4px;
}
.delete-item-btn:hover { color: var(--red); }
.item-card .item-name { padding-right: 22px; }

/* ---- Station row on a card ---- */
.station-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
}
.station-row input {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 12px;
}
.station-row .saved-tick { color: var(--green); opacity: 0; transition: opacity 0.3s; }
.station-row .saved-tick.show { opacity: 1; }

/* ---- Toolbar: Stations / Sites switch and Add item ---- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.toolbar[hidden] { display: none; }
.view-toggle { display: flex; align-items: center; gap: 0; }
.view-label { font-size: 12px; color: var(--muted); margin-right: 10px; }
.seg {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.seg:first-of-type { border-radius: 7px 0 0 7px; }
.seg:last-of-type { border-radius: 0 7px 7px 0; margin-left: -1px; }
.seg[aria-pressed="true"] { background: var(--panel); color: var(--text); border-color: var(--muted); position: relative; }

.stale-banner {
  background: #3a2a10;
  color: #ffd592;
  border: 1px solid #6b4a14;
  border-radius: 8px;
  font-size: 13px;
  padding: 9px 14px;
  margin-bottom: 18px;
}
.stale-banner[hidden] { display: none; }

/* ---- Dialogs ---- */
.muted { color: var(--muted); font-size: 13px; line-height: 1.5; }
.btn-primary, .btn-secondary {
  border: none;
  border-radius: 7px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary { background: var(--green); color: #06210f; }
.btn-secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-primary:disabled { opacity: 0.5; cursor: default; }
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal[hidden] { display: none; }
.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 380px;
}
.modal-box h3 { margin: 0 0 8px; font-size: 15px; }
.modal-box label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 5px; }
.modal-box input[type="text"], .modal-box input[type="number"], .modal-box select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: 13px;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.error-text { color: var(--red); font-size: 12px; margin-top: 10px; min-height: 14px; }

/* ---- Admin viewing a client's dashboard ---- */
.admin-banner {
  background: #2a2140;
  color: #d8ccff;
  font-size: 13px;
  padding: 10px 28px;
  border-bottom: 1px solid var(--border);
}
.admin-banner[hidden] { display: none; }
.admin-banner a { color: #fff; margin-left: 8px; }
a.btn-secondary, a.btn-primary { text-decoration: none; display: inline-block; }