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

:root {
  /* Приглушённая тёмная палитра */
  --bg-primary: #151b28;
  --bg-secondary: #1a2332;
  --bg-card: rgba(26, 35, 50, 0.65);
  --accent: #4a8ab5;
  --accent-soft: #5a9ec9;
  --accent-deep: #2d5a7a;
  --accent-hover: #3a7aa5; /* Добавляем определение переменной */
  --text-primary: #c8d4e0;
  --text-secondary: #7a8a9e;
  --text-muted: #5a6a7e;
  --border: rgba(74, 138, 181, 0.15);
  --border-hover: rgba(74, 138, 181, 0.35);
  --glow: 0 0 20px rgba(74, 138, 181, 0.08);
  --glow-strong: 0 0 30px rgba(74, 138, 181, 0.15);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Мягкий градиентный фон без сетки */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(
      ellipse at 20% 20%,
      rgba(45, 90, 122, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 80% 80%,
      rgba(45, 90, 122, 0.1) 0%,
      transparent 50%
    );
  pointer-events: none;
  z-index: 0;
}

/* Очень мягкие радарные кольца */
.radar-ring {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(74, 138, 181, 0.08);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.radar-ring:nth-child(1) {
  width: 500px;
  height: 500px;
}
.radar-ring:nth-child(2) {
  width: 900px;
  height: 900px;
}
.radar-ring:nth-child(3) {
  width: 1300px;
  height: 1300px;
}

.radar-sweep {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 50vmin;
  background: linear-gradient(to bottom, transparent, #4a8ab5, transparent);
  transform-origin: 50% 100%;
  animation: radarSweep 4s linear infinite;
  pointer-events: none;
  z-index: -8;
}

@keyframes radarSweep {
  0% {
    transform: translate(-50%, -100%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -100%) rotate(360deg);
  }
}

/* Radar target dots */
.radar-target {
  position: fixed;
  width: 6px;
  height: 6px;
  background-color: #00ff00; /* Зеленый цвет радара */
  box-shadow: 0 0 8px 2px rgba(0, 255, 0, 0.7); /* Свечение как у радара */
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  z-index: -7;
  animation: radarTargetPulse 3s ease-out forwards;
}

@keyframes radarTargetPulse {
  0% {
    opacity: 0;
    transform: scale(0.5);
    box-shadow: 0 0 2px 1px rgba(0, 255, 0, 0.5);
  }
  10% {
    opacity: 1;
    transform: scale(1.2);
    box-shadow: 0 0 12px 4px rgba(0, 255, 0, 0.9);
  }
  20% {
    transform: scale(1);
    box-shadow: 0 0 10px 3px rgba(0, 255, 0, 0.8);
  }
  30% {
    transform: scale(1.1);
    box-shadow: 0 0 11px 3px rgba(0, 255, 0, 0.85);
  }
  40% {
    transform: scale(1);
    box-shadow: 0 0 9px 2px rgba(0, 255, 0, 0.75);
  }
  70% {
    opacity: 0.8;
    box-shadow: 0 0 7px 1px rgba(0, 255, 0, 0.6);
  }
  100% {
    opacity: 0.2;
    transform: scale(0.8);
    box-shadow: 0 0 3px 0px rgba(0, 255, 0, 0.2);
  }
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(21, 27, 40, 0.9);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 5px;
  position: relative;
  padding-left: 1.2rem;
}

.logo a {
  color: inherit;
  text-decoration: none;
}

.logo a:hover {
  color: var(--accent);
  text-decoration: none;
}

.logo::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent-deep);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  height: 3px;
  width: 100%;
  background: var(--accent-soft);
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: rgba(21, 27, 40, 0.95);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-left: 1px solid var(--border);
  z-index: 1000;
  transition: right 0.4s ease;
  display: flex;
  flex-direction: column;
  padding-top: 4rem;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
}

.mobile-nav-links li {
  margin: 0;
}

.mobile-nav-links a {
  display: block;
  padding: 1.2rem 2rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: all 0.3s;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-links a:hover {
  color: var(--accent-soft);
  background: rgba(74, 138, 181, 0.1);
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 400;
  position: relative;
  padding-bottom: 0.3rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-links a:hover {
  color: var(--accent-soft);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 6rem; /* Увеличили нижний отступ */
  position: relative;
}

.hero-content {
  max-width: 900px;
  text-align: center;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1.8rem;
  border: 1px solid var(--border-hover);
  color: var(--accent-soft);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 2.5rem;
  background: rgba(26, 35, 50, 0.5);
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  font-weight: 200;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 10px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 300;
  letter-spacing: 0.5px;
}

.hero-description {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
  line-height: 1.8;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-buttons .btn {
  margin: 0.8rem; /* Устанавливаем горизонтальный отступ 2rem между кнопками */
}

/* Для первой и последней кнопки убираем внешние отступы, чтобы центрирование было правильным */
.cta-buttons .btn:first-child {
  margin-left: 0;
}

.cta-buttons .btn:last-child {
  margin-right: 0;
}

/* Buttons */
.btn {
  padding: 0.9rem 2.2rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  border: none;
  cursor: pointer;
  transition: all 0.4s;
  text-decoration: none;
  display: inline-block;
  font-weight: 500;
  width: 200px; /* Увеличиваем ширину кнопок для размещения текста в одну строку */
  text-align: center;
  box-sizing: border-box; /* Учитываем padding в ширине */
}

.btn-primary {
  background: var(--accent-deep);
  color: var(--text-primary);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--glow-strong);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-soft);
  border: 1px solid var(--border-hover);
}

.btn-secondary:hover {
  background: rgba(74, 138, 181, 0.1);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* Section Styles */
section {
  padding: 8rem 2rem; /* Увеличенный отступ сверху и снизу для лучшего разделения */
  position: relative;
  z-index: 1;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 300;
  text-align: center;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 5px;
  color: var(--text-primary);
}

.section-title::after {
  content: "";
  display: block;
  width: 50px;
  height: 1px;
  background: var(--accent-deep);
  margin: 1rem auto 0;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 4rem;
  font-size: 0.9rem;
  font-weight: 300;
  letter-spacing: 1px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }

  /* Responsive buttons for mobile */
  .cta-buttons {
    flex-direction: column; /* Располагаем кнопки вертикально на мобильных */
    align-items: center; /* Центрируем кнопки */
  }
  
  .cta-buttons .btn {
    margin: 1.5rem 0; /* Устанавливаем вертикальный отступ 1.5rem между кнопками */
  }
  
  /* Для первой и последней кнопки убираем внешние отступы */
  .cta-buttons .btn:first-child {
    margin-top: 0;
  }
  
  .cta-buttons .btn:last-child {
    margin-bottom: 0;
  }

  .ps-grid,
  .tasks-grid,
  .components-grid {
    grid-template-columns: 1fr;
  }

  .principle-step:not(:last-child)::after {
    content: "↓";
    right: 50%;
    bottom: -1.2rem;
    top: auto;
    transform: translateX(50%);
  }

  .section-title {
    font-size: 1.4rem;
    letter-spacing: 3px;
  }

  .hero h1 {
    letter-spacing: 5px;
  }

  .contact-form {
    padding: 2rem 1.3rem;
  }
}

/* Problem/Solution */
.problem-solution {
  background: rgba(26, 35, 50, 0.3);
  padding: 8rem 2rem; /* Добавляем специфический отступ для этого типа секции */
}

.ps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2.5rem;
}

.ps-card {
  padding: 2.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.ps-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
}

.ps-card.problem::before {
  background: linear-gradient(90deg, transparent, #8b5a3c, transparent);
}

.ps-card.solution::before {
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-deep),
    transparent
  );
}

.ps-card h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-weight: 400;
}

.ps-card.problem h3 {
  color: #b8734a;
}

.ps-card.solution h3 {
  color: var(--accent-soft);
}

.ps-list {
  list-style: none;
}

.ps-list li {
  padding: 0.8rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}

.ps-list li:last-child {
  border-bottom: none;
}

.ps-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}

/* Protected Objects */
.objects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* Устанавливаем 4 столбца для равномерного распределения */
  gap: 1.2rem;
}

/* Адаптация для планшетов */
@media (max-width: 768px) {
  .objects-grid {
    grid-template-columns: repeat(2, 1fr); /* На планшетах 2 столбца */
    gap: 1rem;
  }
}

/* Адаптация для мобильных устройств */
@media (max-width: 480px) {
  .objects-grid {
    grid-template-columns: repeat(2, 1fr); /* На мобильных 2 столбца */
    gap: 0.8rem;
  }
  
  .object-card {
    padding: 1.5rem 1rem; /* Уменьшаем внутренние отступы */
  }
}

.object-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.object-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1rem;
  min-height: 64px;
}

.object-icon img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  opacity: 0.6;
}

.object-card h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  font-weight: 400;
}

/* Tasks */

/* Tasks */
.tasks {
  background: rgba(26, 35, 50, 0.3);
  padding: 8rem 2rem; /* Добавляем специфический отступ для этого типа секции */
}

.tasks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.2rem;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 1.3rem;
  padding: 1.8rem;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent-deep);
  transition: all 0.4s;
  box-shadow: var(--shadow);
}

.task-item:hover {
  transform: translateX(4px);
  border-color: var(--border-hover);
  box-shadow: var(--glow), var(--shadow);
}

.task-letter {
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--accent-soft);
  min-width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-hover);
  background: rgba(45, 90, 122, 0.15);
}

.task-content h4 {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 400;
}

.task-content p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

/* Working Principle */
.principle-diagram {
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  padding: 3.5rem 2rem;
  margin-top: 3rem;
  box-shadow: var(--shadow);
  position: relative;
}

.principle-diagram::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-deep),
    transparent
  );
}

.principle-steps {
  display: flex;
  justify-content: space-between;
  align-items: stretch; /* Растягиваем по высоте */
  flex-wrap: wrap;
  gap: 1.5rem;
}

.principle-step {
  flex: 1;
  min-width: 170px;
  text-align: center;
  padding: 1.8rem 1rem;
  background: rgba(21, 27, 40, 0.5);
  border: 1px solid var(--border);
  position: relative;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.principle-step h4 {
  font-size: 0.85rem;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 400;
  color: var(--text-primary);
}

.principle-step p {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.5;
  flex-grow: 1; /* Растягиваем текст */
}

/* Components */
.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.8rem;
}

.component-card {
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.4s;
  box-shadow: var(--shadow);
}

.component-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--glow), var(--shadow);
}

.component-header {
  background: rgba(45, 90, 122, 0.15);
  padding: 1.8rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.component-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-deep),
    transparent
  );
}

.component-header h3 {
  font-size: 1.2rem;
  color: var(--accent-soft);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-weight: 400;
}

.component-type {
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 1px;
}

.component-body {
  padding: 1.8rem;
}

.component-body p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
  font-size: 0.9rem;
}

.component-image {
  width: 100%;
  height: 200px;
  background: rgba(21, 27, 40, 0.5);
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.component-image:not(:has(img))::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  border: 1px solid var(--border);
  border-radius: 50%;
}

.component-image:not(:has(img))::after {
  content: "📷";
  font-size: 1.8rem;
  opacity: 0.25;
  z-index: 1;
}

.component-image span {
  position: absolute;
  bottom: 0.8rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  z-index: 1;
}

.specs-list {
  list-style: none;
}

.specs-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
}

.specs-list li:last-child {
  border-bottom: none;
}

.specs-label {
  color: var(--text-muted);
}

.specs-value {
  color: var(--accent-soft);
  font-weight: 500;
}

/* Technical Specs Tabs */
.specs-section {
  background: rgba(26, 35, 50, 0.3);
  padding: 8rem 2rem; /* Добавляем специфический отступ для этого типа секции */
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 0.8rem 1.6rem;
  background: rgba(21, 27, 40, 0.5);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.72rem;
  font-weight: 400;
  backdrop-filter: blur(10px);
}

.tab-btn.active {
  background: rgba(45, 90, 122, 0.25);
  color: var(--accent-soft);
  border-color: var(--accent);
}

.tab-btn:hover:not(.active) {
  border-color: var(--border-hover);
  color: var(--accent-soft);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.specs-table th,
.specs-table td {
  padding: 1rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.specs-table th {
  background: rgba(45, 90, 122, 0.15);
  color: var(--accent-soft);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.75rem;
}

.specs-table td {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.specs-table tr:hover td {
  background: rgba(45, 90, 122, 0.08);
  color: var(--text-primary);
}

/* Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr); /* Устанавливаем 5 столбцов для равномерного распределения */
  gap: 1.2rem;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem; /* Уменьшаем отступ, так как иконок больше нет */
  padding: 1.8rem;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  transition: all 0.4s;
  box-shadow: var(--shadow);
}

.advantage-item:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
  box-shadow: var(--glow), var(--shadow);
}

.advantage-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 32px;
  min-height: 32px;
}

.advantage-content h4 {
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 400;
}

.advantage-content p {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

/* Адаптация для сетки преимуществ */
@media (max-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr); /* На планшетах 2 столбца */
    gap: 1rem;
  }
  
  .advantage-item {
    gap: 0.5rem; /* Уменьшаем отступ и в адаптивной версии */
    padding: 1.2rem;
  }
}

@media (max-width: 480px) {
  .advantages-grid {
    grid-template-columns: repeat(1, 1fr); /* На мобильных 1 столбец */
    gap: 0.8rem;
  }
  
  .advantage-item {
    gap: 0.5rem; /* Уменьшаем отступ и в мобильной версии */
    padding: 1.2rem;
  }
}

/* Certificates */
.certificates {
  background: rgba(26, 35, 50, 0.3);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.cert-card {
  aspect-ratio: 2/3;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.4s;
  cursor: pointer;
  box-shadow: var(--shadow);
  position: relative;
  display: flex;
  flex-direction: column;
}

.cert-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--glow), var(--shadow);
}

.cert-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 1200px) {
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

.cert-card {
  aspect-ratio: 3/4;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  transition: all 0.4s;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.cert-card:hover {
  border-color: var(--border-hover);
  border-style: solid;
  transform: translateY(-4px);
}

.cert-card::before {
  content: "";
  font-size: 2.5rem;
  opacity: 0.25;
}

.cert-card span {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* Contact Form */
.contact-form {
  max-width: 650px;
  margin: 0 auto;
  background: var(--bg-card);
  backdrop-filter: blur(15px);
  padding: 2.5rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
}

.contact-form::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-deep),
    transparent
  );
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.72rem;
  font-weight: 400;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem;
  background: rgba(21, 27, 40, 0.6);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(21, 27, 40, 0.8);
}

.form-group textarea {
  min-height: 110px;
  resize: vertical;
}

/* Footer */
footer {
  background: rgba(21, 27, 40, 0.8);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  backdrop-filter: blur(15px);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 1.3rem;
  color: var(--accent-soft);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 5px;
  font-weight: 300;
}
/* SVG Icons */
.icon-svg {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  stroke: var(--accent-soft);
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.75;
  transition: all 0.4s;
}

.advantage-item:hover .icon-svg {
  opacity: 1;
  stroke: var(--accent);
  filter: drop-shadow(0 0 8px rgba(74, 138, 181, 0.4));
}

.advantage-icon-svg {
  width: 32px;
  height: 32px;
  stroke: var(--accent-soft);
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.75;
  flex-shrink: 0;
  transition: all 0.4s;
}

.advantage-item:hover .advantage-icon-svg {
  opacity: 1;
  stroke: var(--accent);
}

/* Адаптация для сетки преимуществ */
@media (max-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr); /* На планшетах 2 столбца */
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .advantages-grid {
    grid-template-columns: repeat(1, 1fr); /* На мобильных 1 столбец */
    gap: 0.8rem;
  }
  
  .advantage-item {
    gap: 0.5rem; /* Уменьшаем отступ и в мобильной версии */
    padding: 1.2rem;
  }
}

/* Удаляем старые стили для эмодзи */

.advantage-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 32px;
  min-height: 32px;
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(25px);
  transition: all 0.8s;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}



/* Objects section */
#objects {
  padding: 8rem 2rem; /* Увеличиваем отступы для секции объектов защиты */
}

/* Principle section */
#principle {
  padding: 8rem 2rem; /* Увеличиваем отступы для секции принципов */
}

/* Advantages section */
#advantages {
  padding: 8rem 2rem; /* Увеличиваем отступы для секции преимуществ */
}

/* Contact section */
#contact {
  padding: 8rem 2rem; /* Увеличиваем отступы для секции контактов */
}

/* Technical Specs Tabs */
.specs-section {
  background: rgba(26, 35, 50, 0.3);
  padding: 8rem 2rem; /* Добавляем специфический отступ для этого типа секции */
}

/* Адаптация для планшетов */
@media (max-width: 768px) {
  section {
    padding: 6rem 1.5rem;
  }
  
  .hero {
    padding: 6rem 1.5rem 4rem;
  }
  
  .problem-solution,
  .tasks,
  .specs-section {
    padding: 6rem 1.5rem;
  }
  
  #objects,
  #principle,
  #advantages,
  #contact {
    padding: 6rem 1.5rem;
  }
}

/* Адаптация для мобильных устройств */
@media (max-width: 480px) {
  section {
    padding: 4rem 1rem;
  }
  
  .hero {
    padding: 4rem 1rem 2rem;
  }
  
  .problem-solution,
  .tasks,
  .specs-section {
    padding: 4rem 1rem;
  }
  
  #objects,
  #principle,
  #advantages,
  #contact {
    padding: 4rem 1rem;
  }
}

/* Working Schema Section */
.working-schema {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

/* System Architecture Section */
.system-architecture {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

.architecture-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.overview-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
}

.overview-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.overview-item h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.overview-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.schema-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 3rem 0;
  padding: 2.5rem;
  background: linear-gradient(145deg, #2d3a4d, #1f2a38);
  border-radius: 12px;
  border: 1px solid rgba(74, 138, 181, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.schema-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #5a9ec9, transparent);
}

.schema-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #5a9ec9, transparent);
}

.schema-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  opacity: 1;
}

.schema-image:hover {
  opacity: 1;
}

/* Убедимся, что SVG изображения масштабируются правильно */
.schema-image svg {
  width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .schema-container {
    padding: 1.5rem;
  }
  
  .working-schema {
    padding: 4rem 1.5rem;
  }
  
  .architecture-overview,
  .components-grid,
  .modes-grid {
    grid-template-columns: 1fr;
  }
  
  .system-architecture,
  .system-components,
  .operation-modes {
    padding: 4rem 1.5rem;
  }
}

/* Updated System Components Section */
.system-components {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.component-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
}

.component-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.component-card h3 {
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-size: 1.4rem;
}

.component-type {
  color: var(--accent-soft);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
}

.component-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.component-function {
  background: rgba(74, 138, 181, 0.1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--accent-soft);
}

.components-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.component-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
}

.component-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.component-item h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  line-height: 1.4;
}

.component-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Operation Principle Section */
.operation-principle {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

/* Operation Modes Section */
.operation-modes {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.mode-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
}

.mode-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.mode-card h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.mode-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.principle-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.principle-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
}

.principle-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.principle-item h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.principle-item p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Hardware Directions Section */
.hardware-directions {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

.directions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.direction-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(10px);
}

.direction-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-strong);
}

.direction-card h3 {
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.4;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.direction-content {
  margin-top: 1.5rem;
}

.equipment-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px dashed var(--border);
}

.equipment-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.equipment-item h4 {
  color: var(--accent-soft);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.equipment-item p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Methodology Grid */
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* Устанавливаем 4 столбца для равномерного распределения */
  gap: 1.2rem;
}

@media (max-width: 768px) {
  .methodology-grid {
    grid-template-columns: repeat(2, 1fr); /* На планшетах 2 столбца */
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .methodology-grid {
    grid-template-columns: repeat(1, 1fr); /* На мобильных 1 столбец */
    gap: 0.8rem;
  }
}