/* Общие стили для страницы */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: #ff9a9e;
    color: #333; 
    line-height: 1.6;
}

/* Стили для заголовков */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    color: #444;
    margin: 20px 0;
    text-align: center;
}

/* Стили для ссылок */
a {
    color: #ff6f61;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #d64550;
}

/* Стили для кнопок */
button {
    background-color: #ff6f61;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #d64550;
}

/* Стили для контейнера */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.cards {
    list-style: none;
    padding: 0;
    margin: 10px 0;
    display: flex;
    gap: 8px;
}

.cards li {
    padding: 0;
    margin: 0;
}

.card {
    width: 65px;
    height: 30px;
    background-repeat: no-repeat;
    background-position: center;
    vertical-align: middle;
    margin: 0 10px;
    padding: 5px;
    border-radius: 8px;
    background-color: #f5f5f5;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
    background-size: contain;
    opacity: 0.5;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card.visa {
    background-image: url(b9d988eca53a9e23b883.png);
}

.card.master-card {
    background-image: url(ad2ede6805fcb6c5596b.png);
}

.card.mir {
    background-image: url(65bbc946673fb5fb532e.png);
}

.card.union-pay {
    background-image: url(c671d33108cf1033d5d6.png);
}

form#cards__form {
  max-width: 400px;
  margin: 30px auto;
  padding: 20px;
  background-color: #f8f8f8;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

form#cards__form label {
  display: block;
  margin-bottom: 8px;
  font-weight: bold;
  color: #333;
}

form#cards__form input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 16px;
  box-sizing: border-box;
}

form#cards__form input[type="text"]:focus {
  border-color: #007BFF;
  outline: none;
  box-shadow: 0 0 0 2px rgba(0,123,255,0.2);
}

form#cards__form .btn {
  width: 100%;
  padding: 12px;
  background-color: #007BFF;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

form#cards__form .btn:hover {
  background-color: #0056b3;
}

.card.active {
    filter: brightness(1.1) drop-shadow(0 0 5px rgba(0, 123, 255, 0.6));
    border: 1px solid #007BFF;
    border-radius: 5px;
}

.error-message {
  color: red;
  font-size: 14px;
  margin-bottom: 10px;
  display: block;
}



.card img {
  max-width: 100%;
  max-height: 100%;
}

.card.active {
  opacity: 1;
  transform: scale(1.1);
  background-color: #ffffff;
  box-shadow: 0 0 10px rgba(0, 128, 255, 0.4);
  border: 2px solid #007bff;
}