:root {
  --bg: #eef2f6;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #64748b;
  --line: #d8e0ea;
  --primary: #163f63;
  --primary-2: #0f2f4b;
  --soft: #f6f8fb;
  --success: #146c43;
  --danger: #a52828;
  --warning: #8a5a00;
  --radius: 18px;
  --shadow: 0 12px 32px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 24px 28px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
}

.brand { display: flex; align-items: center; gap: 16px; }
.brand-icon {
  width: 52px; height: 52px; border-radius: 16px;
  background: rgba(255,255,255,.14);
  display: grid; place-items: center;
  font-weight: 800; letter-spacing: .5px;
  border: 1px solid rgba(255,255,255,.22);
}

h1, h2, p { margin-top: 0; }
h1 { font-size: 26px; margin-bottom: 4px; }
.topbar p { margin-bottom: 0; opacity: .9; }
.status-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.13);
  border: 1px solid rgba(255,255,255,.22);
  white-space: nowrap;
}

.layout {
  max-width: 1580px;
  margin: 0 auto;
  padding: 22px;
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr) 340px;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.panel h2 { font-size: 18px; color: var(--primary-2); margin-bottom: 14px; }
.field { margin-bottom: 14px; }
label { display: block; font-weight: 700; color: var(--muted); font-size: 13px; margin-bottom: 6px; }

select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  outline: none;
  font-size: 14px;
}
select { padding: 10px 12px; }
textarea {
  min-height: 310px;
  resize: vertical;
  padding: 14px;
  font-size: 15px;
  line-height: 1.65;
}
textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,63,99,.12); }

.switch-list { margin: 12px 0 16px; }
.switch-list label {
  color: var(--ink); font-weight: 500;
  display: flex; align-items: flex-start; gap: 8px;
  margin: 10px 0;
}
.switch-list input { margin-top: 3px; }

button {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 13px;
  font-weight: 800;
  color: var(--primary-2);
  background: var(--soft);
  cursor: pointer;
}
button:hover { transform: translateY(-1px); filter: brightness(.98); }
button.primary { background: var(--primary); color: white; border-color: var(--primary); }
button.success { background: var(--success); color: white; border-color: var(--success); }
.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.workspace { display: grid; grid-template-columns: 1fr; gap: 18px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.panel-head span { color: var(--muted); font-size: 13px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }

.diagnostics .item, .connector-group, .history-item {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
  font-size: 14px;
}
.empty { color: var(--muted); }
.tag {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  background: #eaf1f8;
  color: var(--primary-2);
  margin: 3px 4px 3px 0;
  font-size: 12px;
  border: 1px solid #d5e3ef;
}
.history-item { cursor: pointer; }
.history-item:hover { background: #ecf3f9; }
.small { color: var(--muted); font-size: 12px; }
.privacy-note {
  max-width: 1580px;
  margin: 0 auto 18px;
  padding: 14px 20px;
  background: #fff8e6;
  color: #6b4500;
  border: 1px solid #f0d38a;
  border-radius: 14px;
}
footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }

@media (max-width: 1180px) {
  .layout { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
}
.loading {
  opacity: .65;
  pointer-events: none;
}
.status {
  font-size: 13px;
  color: #1f4e79;
  margin-top: 6px;
  font-weight: 700;
}