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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f5f7;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  color: #1B2A6B;
  font-size: 24px;
  margin-bottom: 4px;
}

.subtitle {
  color: #666;
  font-size: 14px;
  margin-bottom: 32px;
}

/* Password Gate */
#auth-section {
  background: #fff;
  border-radius: 8px;
  padding: 40px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  text-align: center;
}

#auth-section h1 {
  margin-bottom: 8px;
}

#auth-section p {
  color: #666;
  margin-bottom: 24px;
  font-size: 14px;
}

.password-row {
  display: flex;
  gap: 8px;
  max-width: 320px;
  margin: 0 auto;
}

.password-row input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 14px;
}

.password-row input:focus {
  outline: none;
  border-color: #1B2A6B;
}

.password-row button {
  padding: 10px 20px;
  background: #1B2A6B;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}

.password-row button:hover {
  background: #152256;
}

.error-msg {
  color: #c0392b;
  font-size: 13px;
  margin-top: 10px;
  min-height: 20px;
}

/* Main App */
#app-section {
  display: none;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 24px;
}

.card h2 {
  color: #1B2A6B;
  font-size: 18px;
  margin-bottom: 20px;
}

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

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: bold;
  color: #555;
  margin-bottom: 4px;
}

.form-group label .optional {
  font-weight: normal;
  color: #999;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 14px;
  font-family: Arial, Helvetica, sans-serif;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #1B2A6B;
}

.form-group textarea {
  resize: vertical;
}

/* Preview */
.preview-box {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 24px;
  margin-bottom: 20px;
  overflow-x: auto;
}

/* Copy Button */
.btn-copy {
  display: inline-block;
  padding: 12px 28px;
  background: #1B2A6B;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: bold;
  cursor: pointer;
}

.btn-copy:hover {
  background: #152256;
}

.btn-copy.copied {
  background: #27ae60;
}

/* Instructions */
.instructions {
  margin-top: 20px;
  padding: 16px 20px;
  background: #f0f4ff;
  border-radius: 6px;
  font-size: 13px;
  color: #444;
}

.instructions h3 {
  font-size: 14px;
  color: #1B2A6B;
  margin-bottom: 8px;
}

.instructions ol {
  padding-left: 18px;
}

.instructions li {
  margin-bottom: 4px;
}

.instructions details {
  margin-bottom: 6px;
}

.instructions summary {
  cursor: pointer;
  font-weight: bold;
  color: #1B2A6B;
  padding: 4px 0;
}