:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #19212b;
  --muted: #5b6b7f;
  --border: #d7deea;
  --primary: #0c7a6e;
  --primary-hover: #0a675d;
  --danger: #b32737;
  --success: #0b7b49;
  --shadow: 0 14px 32px rgba(18, 33, 57, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: linear-gradient(135deg, #f2f7ff, #f9fcff 35%, #f2f5f8);
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.hero {
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0;
  font-size: 1.8rem;
}

.hero p {
  color: var(--muted);
  margin: 6px 0 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-top: 14px;
  box-shadow: var(--shadow);
}

h2,
h3 {
  margin-top: 0;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: #1f2e3f;
}

input,
select,
textarea,
button {
  width: 100%;
  margin-top: 6px;
  border: 1px solid #cad5e2;
  border-radius: 10px;
  font-size: 0.96rem;
}

input,
select,
textarea {
  padding: 10px 12px;
  background: #fff;
}

textarea {
  resize: vertical;
  min-height: 160px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #1f8fdf;
  outline: 2px solid #cde8ff;
}

.grid {
  display: grid;
  gap: 12px;
}

.two-col {
  grid-template-columns: 1fr;
}

.toggle-row {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.toggle-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 500;
  background: #f7fbff;
}

.toggle-pill input {
  width: auto;
  margin: 0;
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-weight: 500;
}

.inline-check input {
  width: auto;
  margin: 0;
}

.preview {
  margin-top: 8px;
  min-height: 110px;
  border: 1px dashed #bfd2e3;
  border-radius: 10px;
  padding: 10px;
  background: #fcfeff;
  overflow: auto;
}

.controls .buttons {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

button {
  cursor: pointer;
  font-weight: 700;
  padding: 11px 14px;
  background: #f7fafc;
}

button:hover {
  background: #eff5fa;
}

button.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

button.primary:hover {
  background: var(--primary-hover);
}

button:disabled {
  opacity: 0.7;
  cursor: wait;
}

.status {
  margin: 12px 0 0;
  min-height: 24px;
  font-weight: 700;
}

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

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

@media (min-width: 760px) {
  .two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .controls .buttons {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}