* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}

.app {
  width: 100%;
  max-width: 900px;
}

h1 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--primary);
}

/* ── Cards ── */

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

/* ── Form elements ── */

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
}

.form-group {
  margin-bottom: 12px;
}

.form-group input {
  width: 100%;
}

input {
  flex: 1;
  min-width: 160px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 15px;
  outline: none;
}

button {
  padding: 12px 18px;
  border-radius: 10px;
  border: none;
  background: var(--primary);
  color: white;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

button.secondary {
  background: #e2e8f0;
  color: #1a202c;
}

button.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

select {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  background: white;
}

/* ── Utility ── */

.hint {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

.status {
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--muted);
}

.error {
  color: #b00020;
  font-weight: 700;
}

.section-title {
  margin-top: 12px;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

pre {
  background: #0f172a;
  color: #e5e7eb;
  padding: 14px;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid #1e293b;
  margin: 0;
}