:root {
  --bg: #f5f4ef;
  --card: #ffffff;
  --text: #12212d;
  --accent: #116f8c;
  --muted: #73828f;
  --border: #dde3e8;
  --danger: #b73333;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top right, #e6f1f5, var(--bg));
}

.topbar {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 12px 20px;
  background: #0f1d26;
  color: #fff;
}

.topbar nav { display: flex; gap: 14px; flex-wrap: wrap; }
.topbar a { color: #d2ebf4; text-decoration: none; }
.topbar a:hover { color: #fff; }
.brand { font-weight: 700; letter-spacing: 0.3px; }
.user { margin-left: auto; font-size: 13px; color: #b8c9d5; }

.container { max-width: 1180px; margin: 24px auto; padding: 0 16px 32px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 10px 22px rgba(14, 32, 46, 0.06);
}

.login-card { max-width: 420px; margin: 60px auto; }

.form-grid {
  display: grid;
  gap: 10px;
}

input, textarea, select, button {
  width: 100%;
  border: 1px solid #cbd7df;
  border-radius: 8px;
  padding: 10px;
  font-size: 14px;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
}
button:hover { filter: brightness(1.05); }
.inline-button {
  width: auto;
  padding: 6px 10px;
  margin-right: 6px;
  font-size: 12px;
}
.inline-button.danger {
  background: #b73333;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 12px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 12px;
}

.split {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 12px;
}

.side-list ul { list-style: none; padding: 0; margin: 10px 0 0; max-height: 70vh; overflow: auto; }
.side-list li { padding: 8px; border-bottom: 1px solid #edf2f5; cursor: pointer; }
.side-list li:hover { background: #f6fbfd; }
.side-list li.active { background: #e7f5fb; border-left: 3px solid var(--accent); }

.field-section {
  border: 1px solid #e7edf1;
  border-radius: 8px;
  padding: 10px;
}
.field-section h4 {
  margin: 0 0 8px;
  font-size: 14px;
}
.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 10px;
}
.dynamic-field {
  display: grid;
  gap: 5px;
}
.dynamic-field label {
  font-size: 12px;
  font-weight: 600;
  color: #1a2a36;
}

.method {
  display: inline-block;
  min-width: 52px;
  text-align: center;
  color: #fff;
  border-radius: 6px;
  font-size: 12px;
  margin-right: 8px;
  padding: 2px 6px;
}
.method.get { background: #2e8b57; }
.method.post { background: #a56a11; }

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  font-size: 13px;
  text-align: left;
  border-bottom: 1px solid #ecf1f4;
  padding: 8px;
}

pre {
  background: #111820;
  color: #b7e7c4;
  border-radius: 8px;
  padding: 10px;
  overflow: auto;
  font-size: 12px;
}

.error { color: var(--danger); min-height: 18px; }
.hint { color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .field-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
  .user { width: 100%; margin-left: 0; }
}