/* Flexbox-based modern form styling */

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #667eea, #764ba2);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: #111827;
  color: white;
  text-align: center;
  padding: 30px 15px;
}

.header h1 {
  margin: 0;
  font-size: 1.8rem;
}

.header p {
  margin: 5px 0 0;
  opacity: 0.8;
}

.main-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 30px 15px;
}

.form-box {
  background: white;
  border-radius: 12px;
  padding: 25px;
  max-width: 700px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 25px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.section h2 {
  font-size: 1.2rem;
  color: #333;
  margin-bottom: 12px;
  border-bottom: 2px solid #667eea;
  padding-bottom: 4px;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 15px;
}

.form-row {
  display: flex;
  gap: 20px;
}

input, select, textarea {
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 0.95rem;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102,126,234,0.25);
}

input:valid {
  border: 2px solid #4ade80;
}

input:invalid {
  border: 2px solid #f87171;
}

.checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.char-count {
  font-size: 0.8rem;
  color: #555;
  margin-top: 4px;
}

.buttons {
  display: flex;
  justify-content: flex-end;
  gap: 15px;
}

.btn {
  padding: 10px 18px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: #667eea;
  color: white;
}

.btn.primary:hover {
  background: #5563d9;
  transform: translateY(-2px);
}

.btn.secondary {
  background: #f3f4f6;
  color: #111827;
}

.btn.secondary:hover {
  background: #e5e7eb;
}

@media (max-width: 700px) {
  .form-row {
    flex-direction: column;
  }
}