* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #f4f6f8;
  color: #212529;
  padding: 12px;
  display: flex;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 480px;
}

.card {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.header {
  text-align: center;
  margin-bottom: 20px;
}

.header h2 {
  color: #1677ff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}

.header p {
  color: #6c757d;
  font-size: 13px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #343a40;
}

.required {
  color: #e03131;
}

input[type="text"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border: 1px solid #ced4da;
  border-radius: 8px;
  background-color: #fff;
  transition: border-color 0.2s;
  outline: none;
  font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #1677ff;
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.15);
}

select:disabled {
  background-color: #f8f9fa;
  color: #adb5bd;
  cursor: not-allowed;
}

textarea {
  resize: vertical;
}

.btn-submit {
  width: 100%;
  background-color: #1677ff;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  padding: 14px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 8px;
  transition: background-color 0.2s;
}

.btn-submit:hover {
  background-color: #0958d9;
}

.btn-submit:disabled {
  background-color: #91caff;
  cursor: not-allowed;
}

.alert {
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

.alert.error {
  background-color: #fff5f5;
  border: 1px solid #ffc9c9;
  color: #c92a2a;
}

.hidden {
  display: none !important;
}

/* Success Card */
#successCard {
  text-align: center;
  padding: 32px 16px;
}

.success-icon {
  width: 64px;
  height: 64px;
  background-color: #ebfbee;
  color: #2b8a3e;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: bold;
  margin: 0 auto 16px auto;
}

.info-badge {
  background-color: #e7f5ff;
  color: #1971c2;
  font-size: 13px;
  padding: 10px;
  border-radius: 6px;
}