/* ========================================
   INDEX.CSS - Glassmorphism 2026
   Главная страница с эффектом стекла
======================================== */

/* ========== БАЗОВЫЕ СТИЛИ СТРАНИЦЫ ========== */
body {
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* ========== ПРЕЛОАДЕР ========== */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--background);
  background-image: var(--background-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-content {
  text-align: center;
  animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.preloader-logo {
  max-width: 180px;
  max-height: 180px;
  margin-bottom: 24px;
  filter: drop-shadow(0 0 40px var(--glow-strong));
  animation: pulse 2.5s ease-in-out infinite;
}

.preloader-title {
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-light) 0%,
    var(--accent) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeIn 1.2s ease 0.3s both;
  letter-spacing: -0.03em;
}

.preloader-spinner {
  margin-top: 36px;
  width: 60px;
  height: 60px;
  border: 5px solid rgba(168, 85, 247, 0.15);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

/* ========== ПОИСК С GLASSMORPHISM ========== */
.search-container {
  max-width: 900px;
  margin: 0 auto 48px;
  position: relative;
  z-index: 2;
}

.logo-section {
  text-align: center;
  margin-bottom: 36px;
}

.site-logo {
  max-width: 220px;
  max-height: 90px;
  filter: drop-shadow(0 0 30px var(--glow-strong));
  animation: float 4s ease-in-out infinite;
}

.site-title {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    var(--primary-light) 0%,
    var(--accent) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: float 4s ease-in-out infinite;
  letter-spacing: -0.03em;
}

.search-box {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-medium), 0 0 40px rgba(168, 85, 247, 0.1);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: var(--shadow-strong), 0 0 60px var(--glow);
  transform: translateY(-4px);
}

.search-box i {
  color: var(--primary-light);
  font-size: 1.3rem;
  transition: all 0.3s ease;
}

.search-box:focus-within i {
  color: var(--accent);
  transform: scale(1.1);
}

.search-box input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.05rem;
  outline: none;
  font-weight: 500;
}

.search-box input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

/* Результаты поиска с Glassmorphism */
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  max-height: 420px;
  overflow-y: auto;
  display: none;
  box-shadow: var(--shadow-strong), 0 0 40px rgba(168, 85, 247, 0.15);
  z-index: 1000;
  animation: fadeInDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-results.active {
  display: block;
}

.search-result-item {
  padding: 16px 24px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.1);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.search-result-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.search-result-item:hover {
  background: rgba(168, 85, 247, 0.08);
  padding-left: 28px;
}

.search-result-item:hover::before {
  opacity: 1;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item h4 {
  color: var(--primary-light);
  margin-bottom: 6px;
  font-weight: 600;
}

.search-result-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ========== GLASSMORPHISM БАННЕР ========== */
.banners-carousel {
  max-width: 1200px;
  margin: 0 auto 48px;
  display: grid;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.banner-container {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-medium), 0 0 30px rgba(168, 85, 247, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.banner-container:hover {
  transform: scale(1.03) translateY(-4px);
  box-shadow: var(--shadow-strong), 0 0 60px var(--glow);
  border-color: var(--primary);
}

.banner-gif {
  width: 100%;
  height: auto;
  display: block;
}

/* ========== СЕКЦИИ С GLASSMORPHISM ========== */
.top-section,
.categories-section,
.services-section {
  max-width: 1200px;
  margin: 0 auto 72px;
  position: relative;
  z-index: 1;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 36px;
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--primary-light) 0%,
    var(--accent) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

/* ========== СЕТКА КАТЕГОРИЙ С GLASSMORPHISM ========== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 24px;
}

.category-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 32px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.category-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.category-card:hover::before {
  opacity: 0.2;
}

.category-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-strong), 0 0 50px var(--glow);
  border-color: var(--primary);
}

.category-icon {
  font-size: 3.2rem;
  color: var(--primary-light);
  margin-bottom: 16px;
  display: block;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  filter: drop-shadow(0 0 20px var(--glow));
}

.category-card:hover .category-icon {
  transform: scale(1.15) rotate(5deg);
  color: var(--accent);
  filter: drop-shadow(0 0 30px var(--glow-strong));
}

.category-card span {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
}

/* ========== СЕТКА СЕРВИСОВ С GLASSMORPHISM ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.service-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 0;
}

.service-card:hover::before {
  opacity: 0.2;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong), 0 0 30px var(--glow);
  border-color: var(--primary);
}

.service-icon {
  width: 88px;
  height: 88px;
  object-fit: cover;
  border-radius: 18px;
  margin-bottom: 18px;
  box-shadow: 0 8px 24px rgba(168, 85, 247, 0.3);
  position: relative;
  z-index: 1;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid var(--glass-border);
}

.service-card:hover .service-icon {
  transform: scale(1.08) rotate(3deg);
  box-shadow: 0 12px 32px var(--glow-strong);
}

.service-icon-placeholder {
  width: 88px;
  height: 88px;
  background: var(--glass-bg-light);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 2px solid var(--glass-border);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 2.2rem;
  color: var(--primary-light);
  position: relative;
  z-index: 1;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .service-icon-placeholder {
  transform: scale(1.08) rotate(3deg);
  color: var(--accent);
  border-color: var(--primary);
}

.service-card h3 {
  color: var(--primary-light);
  margin-bottom: 12px;
  font-size: 1.35rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}

.service-card:hover h3 {
  color: var(--accent);
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.6;
  font-size: 0.95rem;
  position: relative;
  z-index: 1;
}

.service-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 2;
}

.service-link {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--text);
  padding: 11px 24px;
  border-radius: 14px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
  position: relative;
  z-index: 2;
  border: 1px solid rgba(168, 85, 247, 0.3);
  overflow: hidden;
}

.service-link::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}

.service-link:hover::before {
  width: 200px;
  height: 200px;
}

.service-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--glow-strong);
  background: linear-gradient(
    135deg,
    var(--primary-light) 0%,
    var(--accent) 100%
  );
}

/* ========== АДАПТИВНОСТЬ ДЛЯ МОБИЛЬНЫХ (ОПТИМИЗИРОВАНО) ========== */
@media (max-width: 768px) {
  /* Уменьшаем blur для производительности */
  .service-card,
  .category-card,
  .search-box {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  body {
    padding: 16px;
  }

  .site-title {
    font-size: 2.3rem;
  }

  .section-title {
    font-size: 1.9rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 18px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  /* Минимальный blur для слабых устройств */
  .service-card,
  .category-card,
  .search-box {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }

  /* Отключаем тяжелые эффекты */
  .service-card::before,
  .category-card::before {
    display: none;
  }

  .site-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .preloader-title {
    font-size: 2.2rem;
  }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 16px;
  }

  .category-card {
    padding: 24px 16px;
  }

  .category-icon {
    font-size: 2.8rem;
  }

  .service-card {
    padding: 22px;
  }
}