* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  color: #1f2937;
}

.wrapper {
  max-width: 760px;
  margin: 40px auto;
  padding: 20px;
}

.card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 10px;
  font-size: 28px;
}

.top-link {
  display: inline-block;
  margin-bottom: 24px;
  color: #2563eb;
  text-decoration: none;
  font-weight: 600;
}

.notice {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 18px;
  word-break: break-word;
}

.notice.success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.notice.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.form-grid {
  display: grid;
  gap: 18px;
}

.field-group {
  display: grid;
  gap: 8px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  font-weight: 600;
  font-size: 14px;
}

.hint {
  font-size: 12px;
  color: #6b7280;
  margin-top: -2px;
}

input,
select,
textarea,
button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  padding: 12px 14px;
  font-size: 14px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid #dbeafe;
  background: #f8fbff;
  border-radius: 12px;
}

.checkbox-card input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex: 0 0 auto;
}

.checkbox-title {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
}

.checkbox-text {
  font-size: 13px;
  color: #4b5563;
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

.submit-btn {
  background: #111827;
  color: #fff;
  border: 0;
  cursor: pointer;
  font-weight: 700;
}

.submit-btn:hover {
  opacity: 0.95;
}

@media (max-width: 640px) {
  .field-row {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 20px;
  }
}