:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #142033;
  --muted: #5d6b82;
  --border: #d8e0ec;
  --accent: #2457f5;
  --accent-dark: #1b43bf;
  --error: #b42318;
  --success: #027a48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #eef3ff 0%, var(--bg) 220px);
  color: var(--text);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1, h2 {
  margin: 0 0 8px;
}

.muted {
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(20, 32, 51, 0.06);
}

.grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
}

.stack {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
}

input, textarea, button {
  font: inherit;
}

input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fff;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

button {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button.ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  color: var(--error);
}

.success {
  color: var(--success);
}

.hidden {
  display: none !important;
}

.placeholder {
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 24px;
  color: var(--muted);
  background: #fafcff;
}

.meta code {
  display: block;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f6f8fc;
  word-break: break-all;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}