:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #0f766e;
  --border: #d1d5db;
  --error: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: linear-gradient(145deg, #eef4ff, #f8fbff 35%, #f2f8f7);
  min-height: 100vh;
  padding: 24px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  padding: 24px;
}

h1 {
  margin-top: 0;
  margin-bottom: 8px;
}

p.note {
  margin-top: 0;
  color: var(--muted);
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin: 0 0 16px;
  padding: 14px;
}

legend {
  padding: 0 8px;
  font-weight: 600;
  color: var(--primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-full {
  grid-column: 1 / -1;
}

label {
  font-weight: 600;
  font-size: 0.95rem;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  outline: 2px solid rgba(15, 118, 110, 0.15);
  outline-offset: 1px;
}

.inline-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  min-height: 42px;
}

.inline-options label {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hint {
  font-size: 0.85rem;
  color: var(--muted);
}

.error-text {
  color: var(--error);
  font-size: 0.85rem;
  min-height: 1.1em;
}

.actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

button {
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: white;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  filter: brightness(1.05);
}