* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  color: #18181b;
  background: #f4f4f5;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 16px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 24px;
  align-items: start;
}

h1 {
  margin: 0 0 12px;
  font-size: 42px;
  line-height: 1.05;
  letter-spacing: 0;
}

p {
  color: #52525b;
  font-size: 16px;
  line-height: 1.5;
}

.panel {
  background: #fff;
  border: 1px solid #e4e4e7;
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
}

.module-grid {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.module-option {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  min-height: 74px;
}

.module-option input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  padding: 0;
  justify-self: center;
}

.module-option div {
  min-width: 0;
}

.hidden {
  display: none !important;
}

label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px;
  border: 1px solid #e4e4e7;
  border-radius: 10px;
  background: #fafafa;
  font-weight: 800;
}

.field-label {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
}

input,
textarea {
  width: 100%;
  border: 1px solid #d4d4d8;
  border-radius: 9px;
  padding: 11px 12px;
  font: inherit;
  background: #fff;
}

textarea {
  resize: vertical;
}

label span {
  display: block;
  color: #71717a;
  font-size: 13px;
  font-weight: 650;
  margin-top: 2px;
}

button {
  width: 100%;
  border: 0;
  border-radius: 10px;
  padding: 13px 16px;
  background: #18181b;
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.hint {
  border-left: 4px solid #2563eb;
  background: #eff6ff;
  color: #1e3a8a;
  padding: 12px;
  border-radius: 10px;
  font-weight: 750;
}

.status {
  min-height: 22px;
  font-weight: 800;
  color: #166534;
}

.form-note {
  margin-top: 0;
  color: #71717a;
  font-size: 14px;
  font-weight: 650;
}

.error {
  color: #b91c1c;
}

@media (max-width: 820px) {
  main {
    padding: 20px 12px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 32px;
  }
}