* {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, sans-serif;
}

body {
  background: #f6f7f9;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 520px;
  margin: auto;
  padding: 18px;
}

h1 {
  font-size: 24px;
  margin-bottom: 8px;
}

.subtitle {
  color: #555;
  margin-bottom: 16px;
  font-size: 14px;
}

.card {
  background: #fff;
  padding: 18px;
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
}

label {
  display: block;
  margin-top: 10px;
  margin-bottom: 4px;
  font-weight: 500;
  font-size: 14px;
}

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

textarea {
  min-height: 70px;
}

button {
  margin-top: 14px;
  width: 100%;
  padding: 12px;
  background: #0b5cff;
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
}

button:active {
  opacity: 0.9;
}

.hidden {
  display: none;
}

.success {
  text-align: center;
  font-size: 17px;
  color: #1a7f37;
}