:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #dbe2ea;
  --primary: #1f5eff;
  --primary-dark: #1748c6;
  --secondary: #0f766e;
  --danger: #b42318;
  --success-bg: #e8fff1;
  --error-bg: #fff0f0;
  --warning-bg: #fff8e8;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
}
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}
.topbar {
  background: #111827;
  color: #fff;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  color: #fff;
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
}
.subtitle {
  margin-left: 12px;
  color: #cbd5e1;
}
.userbox {
  display: flex;
  align-items: center;
  gap: 12px;
}
.card, .subcard {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}
.subcard { border-radius: 12px; }
.narrow { max-width: 480px; margin: 40px auto; }
.grid {
  display: grid;
  gap: 16px;
}
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.span-all { grid-column: 1 / -1; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.field label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}
input, textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cfd8e3;
  border-radius: 10px;
  font-size: 1rem;
}
textarea { resize: vertical; }
.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--secondary); }
.project-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  background: #fbfdff;
}
.project-link:hover { border-color: var(--primary); }
.header-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.actions { min-width: 230px; }
.muted { color: var(--muted); }
.messages { margin: 16px 0; display: flex; flex-direction: column; gap: 10px; }
.message {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.message.success { background: var(--success-bg); }
.message.error { background: var(--error-bg); }
.message.warning { background: var(--warning-bg); }
.table {
  width: 100%;
  border-collapse: collapse;
}
.table th, .table td {
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px;
  border-radius: 10px;
  overflow-x: auto;
}
.question {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: #fafcff;
}
.error { color: var(--danger); }
@media (max-width: 900px) {
  .grid.two, .grid.three { grid-template-columns: 1fr; }
  .header-row { flex-direction: column; }
}