/* Базовые стили */
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, sans-serif;
  background: linear-gradient(to bottom, #1a1a1a, #0d0d0d);
  color: #F5EDEB; /* чуть светлее для лучшей читаемости */
  line-height: 1.6;
  font-size: 16px;
}

a {
  color: #B22222; /* насыщенный матовый красный */
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Заголовки */
h1, h2 {
  margin: 0.75em 0;
  font-weight: 700;
  color: #F5EDEB;
}

/* Списки и секции */
ul {
  padding-left: 1.2em;
}
section {
  padding: 1.5em 1em;
}

/* Хедер и футер со стеклянным эффектом */
.glass-header,
.glass-footer {
  background: rgba(30, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.2em;
  text-align: center;
  border-bottom: 1px solid #8B0000;
}

.glass-footer {
  border-top: 1px solid #8B0000;
  border-bottom: none;
}

/* Навигация */
nav {
  display: flex;
  justify-content: center;
  gap: 1em;
  flex-wrap: wrap;
  margin-top: 0.75em;
}

.btn {
  display: inline-block;
  padding: 0.8em 1.4em;
  margin: 0.5em 0;
  background: #8B0000;
  color: #FFF;
  font-weight: bold;
  border-radius: 8px;
  text-align: center;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #B22222;
}

/* Список слотов */
.slot-list ul {
  background-color: #2B0000;
  border: 1px solid #8B0000;
  border-radius: 8px;
  padding: 1em;
}

.slot-list li {
  margin-bottom: 0.75em;
}

/* Бонусный блок */
.bonus-info {
  background: #330000;
  border-left: 5px solid #8B0000;
  padding: 1.2em;
  border-radius: 6px;
  margin: 1.5em 0;
}

/* FAQ */
.faq details {
  margin-bottom: 1.2em;
  background: #2B0000;
  border-radius: 6px;
  padding: 1em;
  border: 1px solid #8B0000;
}

.faq summary {
  font-weight: 700;
  cursor: pointer;
  color: #F5EDEB;
}

/* Промо-блок */
.promo-container {
  max-width: 420px;
  margin: 60px auto;
  font-family: Arial, sans-serif;
  text-align: center;
}

.promo-title {
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: bold;
  color: #B22222;
}

.promo-box {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

#promoCode {
  font-size: 26px;
  padding: 12px;
  width: 160px;
  text-align: center;
  border: 2px solid #8B0000;
  border-radius: 6px;
  background: #330000;
  color: #F5EDEB;
}

.copy-button {
  background: none;
  border: none;
  margin-left: 12px;
  cursor: pointer;
  padding: 0;
}

.copy-button img {
  width: 32px;
  height: 32px;
  transition: transform 0.6s ease;
  filter: brightness(0) saturate(100%) invert(12%) sepia(90%) saturate(600%) hue-rotate(350deg) brightness(90%) contrast(90%);
}

.copy-button:hover img {
  transform: rotate(360deg) scale(1.1);
}

.copied-message {
  position: absolute;
  top: 110%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 10px;
  background-color: #8B0000;
  color: #FFF;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 15px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* Мобильная адаптация */
@media screen and (max-width: 600px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 1.8em;
  }

  h2 {
    font-size: 1.4em;
  }

  nav {
    flex-direction: column;
    gap: 0.8em;
  }

  .slot-list li {
    font-size: 15px;
  }

  #promoCode {
    width: 140px;
    font-size: 22px;
  }
}