:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-color: #f8fafc;
  --text-color: #1e293b;
  --border-color: #e2e8f0;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 600px;
  width: 100%;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 10px;
}

header .subtitle {
  font-size: 1.1rem;
  color: #64748b;
}

.form-container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.form-container h2 {
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.form-container p {
  margin-bottom: 30px;
  color: #64748b;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-btn {
  width: 100%;
  padding: 14px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.submit-btn:hover {
  background-color: var(--primary-hover);
}

.comments-section {
  margin-top: 40px;
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

footer {
  margin-top: 40px;
  text-align: center;
  color: #94a3b8;
  font-size: 0.85rem;
}

#form-status {
  margin-top: 20px;
  text-align: center;
  font-weight: 600;
}

.success { color: #16a34a; }
.error { color: #dc2626; }

@media (max-width: 480px) {
  .form-container {
    padding: 25px;
  }
}