* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #f5f7fa;
  color: #333;
}

.container {
  max-width: 500px;
  margin: 0 auto;
  padding: 16px;
}

h1, h2, h3 {
  text-align: center;
  margin-bottom: 16px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input[type="text"],
input[type="tel"],
input[type="password"] {
  padding: 14px;
  font-size: 18px; /* предотвращает масштаб на iOS */
  border: 1px solid #ccc;
  border-radius: 8px;
  width: 100%;
}

button, .submit-btn {
  padding: 14px;
  font-size: 18px;
  background-color: #2a4d69;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover, .submit-btn:hover {
  opacity: 0.9;
}

.alert {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  text-align: center;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
}

/* Full-height для PWA-режима */
html, body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

.barcode-container {
    width: 100%;
    max-width: 300px;
    height: auto;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}
.barcode-container svg {
  width: 100%;
  height: auto;
  max-width: 100%;
  fill: black;
}