/* Сброс и базовые стили */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
}

/* Шапка */
header {
  background-color: #1a73e8;
  color: #fff;
  padding: 20px 16px;
  text-align: center;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Основной контейнер */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Секция фильтров */
.filters {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 24px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.95rem;
  color: #555;
}

.form-group select,
.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background-color: #fafafa;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group select:focus,
.form-group input:focus {
  outline: none;
  border-color: #1a73e8;
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

#search-btn {
  background-color: #1a73e8;
  color: #fff;
  border: none;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s;
  width: 100%;
}

#search-btn:hover {
  background-color: #1557b0;
}

#search-btn:active {
  background-color: #0d47a1;
}

/* Результаты */
.results {
  min-height: 100px;
}

.initial-message,
.no-results {
  text-align: center;
  color: #888;
  font-size: 1.1rem;
  padding: 48px 16px;
}

.no-results {
  color: #666;
}

/* Контейнер карточек */
.cards-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* Карточка магазина */
.card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
  padding: 20px;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
}

.card__name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1a73e8;
  margin-bottom: 8px;
}

.card__address {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 6px;
}

.card__type,
.card__price,
.card__quantity {
  font-size: 0.9rem;
  color: #555;
  margin-bottom: 4px;
}

.card__total {
  font-size: 1.05rem;
  font-weight: 700;
  color: #d32f2f;
  margin: 10px 0 12px;
  padding: 8px 12px;
  background-color: #fff3f3;
  border-radius: 4px;
  display: inline-block;
}

.card__link {
  display: inline-block;
  background-color: #1a73e8;
  color: #fff;
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.2s;
}

.card__link:hover {
  background-color: #1557b0;
}

/* Планшеты */
@media (min-width: 600px) {
  header h1 {
    font-size: 1.8rem;
  }

  .filters {
    padding: 32px;
  }

  .cards-container {
    grid-template-columns: repeat(2, 1fr);
  }

  #search-btn {
    width: auto;
  }
}

/* Десктоп */
@media (min-width: 900px) {
  main {
    padding: 32px 24px;
  }

  .cards-container {
    grid-template-columns: repeat(3, 1fr);
  }

  .filters form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 16px;
    align-items: end;
  }

  .form-group {
    margin-bottom: 0;
  }

  #search-btn {
    padding: 10px 28px;
    white-space: nowrap;
  }
}