/* --- Глобальные стили --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #0a1b2f, #001f3f);
  color: #e0e0e0;
  line-height: 1.6;
  padding-top: 80px; /* Отступ для фиксированного хедера */
}

::selection {
  background: #00bfff;
  color: #fff;
}

/* --- Компоненты --- */

/* Liquid glass эффект (универсальный класс) */
.glass {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px;
  transition: transform 0.2s ease, background 0.2s ease;
}

.glass:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* --- HEADER --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  padding: 10px 30px;
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}


.logo { width: 65px; }

.nav {
  display: flex;
  justify-content: center;
  flex: 1;
}

.nav a {
  color: #b0dfff;
  text-decoration: none;
  margin: 0 15px;
  transition: 0.3s;
  font-weight: 500;
}

.nav a:hover { color: #00bfff; }

/* --- SECTIONS & CONTENT --- */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

h1 {
  text-align: center;
  color: #ffffff;
  border-bottom: 2px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 10px;
  margin: 40px 0 30px;
}

h2 {
  color: #00bfff;
  margin: 40px 0 20px;
  border-left: 4px solid #00bfff;
  padding-left: 10px;
}

/* Стилизация параграфов как glass-блоков */
p {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 16px;
  margin: 15px 0;
}

/* --- GRIDS & CARDS --- */
.features-grid, .gallery-grid {
  display: grid;
  gap: 20px;
}

.features-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.gallery-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.feature {
  @extend .glass; /* Если используете препроцессор, иначе просто добавьте класс glass в HTML */
  text-align: center;
}

.feature img, .gallery-grid img {
  width: 100%;
  border-radius: 12px;
  transition: transform 0.3s ease;
}

.feature:hover, .gallery-grid img:hover { transform: scale(1.02); }

/* --- FOOTER --- */
.footer {
  text-align: center;
  padding: 40px 20px;
  background: rgba(0, 0, 0, 0.2);
  margin-top: 50px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p { background: transparent; border: none; }

/* --- ADAPTIVE --- */
@media(max-width: 600px) {
  .nav { flex-wrap: wrap; gap: 10px; }
  .features-grid, .gallery-grid { grid-template-columns: 1fr; }
}