body {
      margin: 0;
      font-family: 'Segoe UI', sans-serif;
      background: #f4f6f8;
      color: #111;
      line-height: 1.6;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 40px 20px;
    }
    .hero {
      text-align: center;
      padding: 100px 20px 60px;
      background: linear-gradient(180deg, #ffffff 0%, #f4f6f8 100%);
    }
    .hero h1 {
      font-size: 2.8rem;
      margin-bottom: 20px;
    }
    .hero p {
      font-size: 1.2rem;
      max-width: 700px;
      margin: 0 auto 30px;
    }
    .btn-primary {
      display: inline-block;
      background: #000;
      color: #fff;
      padding: 14px 32px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      transition: background 0.3s;
    }
    .btn-primary:hover {
      background: #333;
    }
    section {
      padding: 60px 0;
    }
    h2 {
      font-size: 2rem;
      margin-bottom: 24px;
    }
 .features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
  padding-top: 32px;
  padding-bottom: 32px;
}

.feature {
  background: #fff;
  padding: 24px;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  background-color: #f9fafb;
}

.feature h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 12px;
}

.feature p {
  font-size: 1rem;
  color: #555;
  line-height: 1.6;
}


    
    h1, h2, h3, h4 {
      margin-bottom: 16px;
    }
    h1 { font-size: 2.4rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.4rem; }
    p { font-size: 1rem; color: #ccc; }

    header {
      position: fixed;
      width: 100%;
      top: 0;
      left: 0;
      z-index: 1000;
      background: #0d0f2d;
      border-bottom: 1px solid #222;
    }
    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .nav-logo {
      font-weight: 700;
      font-size: 1.2rem;
      color: #0ff;
      text-shadow: 0 0 5px #0ff;
    }
    nav a {
      margin-left: 20px;
      text-decoration: none;
      color: #4fc3f7;
      font-weight: 500;
      transition: transform 0.3s ease, opacity 0.3s ease, text-shadow 0.3s;
      text-shadow: 0 0 5px #0ff;
    }
    nav a {
  font-size: 1.05rem;
  letter-spacing: 0.9px;
}
    nav a:hover {
      transform: scale(1.05);
      text-shadow: 0 0 10px #0ff;
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      cursor: pointer;
      z-index: 1001;
    }
    .menu-toggle span {
      height: 3px;
      width: 24px;
      background: #0ff;
      margin-bottom: 5px;
      border-radius: 3px;
      transition: all 0.3s ease;
      box-shadow: 0 0 5px #0ff;
    }
    .menu-toggle.open span:nth-child(1) {
      transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
      transform: translateY(-8px) rotate(-45deg);
    }
    .nav-links {
      display: flex;
      transition: none;
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: radial-gradient(circle at center, rgba(0,255,255,0.2), rgba(13,15,45,0.9));
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        box-shadow: inset 0 0 60px rgba(0,255,255,0.2);
        padding-top: 100px;
        align-items: center;
        gap: 30px;
        z-index: 1000;
        clip-path: circle(0% at 90% 10%);
        opacity: 0;
        transition: clip-path 0.6s ease-in-out, opacity 0.4s ease-in-out;
        pointer-events: none;
      }.nav-links a {
  display: block;
  width: 80%;
  padding: 16px 20px;
  font-size: 1.25rem;
  text-align: center;
  color: #0ff;
  text-shadow: 0 0 6px rgba(0,255,255,0.6);
  border-radius: 12px;
  background: radial-gradient(ellipse at center, rgba(0,255,255,0.1), transparent);
  box-shadow: 0 0 10px rgba(0,255,255,0.2), inset 0 0 15px rgba(0,255,255,0.1);
  transition: background 0.3s, box-shadow 0.3s;
}

.nav-links a:hover {
  background: radial-gradient(ellipse at center, rgba(0,255,255,0.2), transparent);
  box-shadow: 0 0 20px rgba(0,255,255,0.4), inset 0 0 25px rgba(0,255,255,0.15);
}

      .nav-links a {
        color: #0ff;
        text-shadow: 0 0 5px #0ff;
      }
      .nav-links.active {
        clip-path: circle(150% at 90% 10%);
        opacity: 1;
        pointer-events: all;
      }
    }
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  height: 32px;
  animation: logoPulse 4s ease-in-out infinite;
  filter: drop-shadow(0 0 4px #4fc3f7) drop-shadow(0 0 8px #4fc3f7);
}
.logo-text {
  font-weight: 700;
  font-size: 1.2rem;
  background: linear-gradient(90deg, #4fc3f7, #42a5f5, #7e57c2, #4fc3f7);
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 10px rgba(79,195,247,0.6);
}
.mobile-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: rgba(0,0,0,0.3);
      z-index: 999;
    }
    .mobile-overlay.show {
      display: block;
    }

nav a::before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #4fc3f7, #42a5f5, #7e57c2, #4fc3f7);
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
nav a:hover::before {
  opacity: 1;
}
nav a:hover::before {
  opacity: 1;
}
.footer {
  background: #0a0d25;
  color: #fff;
  padding: 60px 20px 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
  align-items: start;
}
.logo-icon {
  height: 32px;
  animation: logoPulse 4s ease-in-out infinite;
  filter: drop-shadow(0 0 4px #4fc3f7) drop-shadow(0 0 8px #4fc3f7);
}


.footer-nav-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.footer-btn {
  display: inline-block;
  padding: 10px 22px;
  border: 1px solid #00f0ff;
  border-radius: 10px;
  background: transparent;
  color: #00f0ff;
  font-weight: 500;
  text-decoration: none;
  transition: 0.3s ease;
  text-align: center;
  box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
}

.footer-btn:hover {
  background: rgba(0, 255, 255, 0.1);
  box-shadow: 0 0 16px rgba(0, 255, 255, 0.5);
  transform: translateY(-2px);
}
.footer-contacts p {
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  font-size: 14px;
  color: #ccc;
}

/* Секция CTA с мятным градиентом */
.section-mint {
  background: linear-gradient(135deg, #e1fdf6, #d1f1ec);
  color: #102b2b;
  padding: 80px 20px;
  text-align: center;
}

/* Контейнер */
.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

/* Заголовок */
.cta-title {
  font-size: 2rem;
  font-weight: 700;
  color: #0d3b3b;
  margin-bottom: 20px;
  text-shadow: 0 0 5px rgba(0,0,0,0.05);
}

/* Подзаголовок */
.cta-subtitle {
  font-size: 1.1rem;
  color: #2b4d4d;
  margin-bottom: 30px;
}

/* Кнопка — используем уже существующий класс */
.center-btn {
  display: inline-block;
  text-align: center;
}

/* Если btn-primary не стилизован — дублируй: */
.btn-primary {
  background: #f4f6f8;        /* Светлый фон */
  color: #111;                /* Почти чёрный текст для контраста */
  border: 2px solid #ccc;     /* Контур для визуальной чёткости */
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
  background: #e0e3e6;        /* Чуть темнее при наведении */
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

/* ✅ Только этот блок изменён: фон светлый, текст тёмный */
.modal {
  background: #f8faff; /* был #111 */
  color: #111;          /* был white */
  padding: 40px;
  border-radius: 16px;
  max-width: 720px;
  width: 90%;
  position: relative;
  transition: transform 0.6s;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 24px;
  background: none;
  border: none;
  color: #000; /* чёрная крестик кнопка на светлом фоне */
  cursor: pointer;
}

.main-grid {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.main-services,
.sub-services {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.sub-services {
  display: none;
  margin-top: 15px;
}

.service-btn,
.sub-services button {
  background: transparent;
  color: #000;
  border: 2px solid #fff;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
}

.service-btn:hover,
.sub-services button:hover {
  background: rgba(255, 255, 255, 0.2);
}

.service-btn.active,
.sub-services button.active {
  background: #000;
  color: #fff;
  border-color: #000;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.3), 0 0 6px #000 inset;
}



/* Скрыть на десктопе */
@media (min-width: 769px) {
  .back-btn {
    display: none !important;
  }
}

/* Показать и стилизовать на мобильных */
@media (max-width: 768px) {
  .back-btn {
    display: inline-block;
    margin-top: 20px;
    background: #000; /* Чёрный фон */
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
  }

  .back-btn:hover {
    background: #222; /* Чуть светлее при наведении */
  }
}


.form-fields input,
.form-fields textarea {
  width: 100%;
  padding: 10px;
  background: #f4f6f8; /* был #222 */
  border: 1px solid #ccc; /* был #444 */
  border-radius: 8px;
  color: #000; /* был #fff */
}

.form-fields {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

@media (max-width: 768px) {
  .desktop-sub {
    display: none !important;
  }

  #mobileSubCategories {
    display: none;
  }

  #mobileSubCategories.active {
    display: block;
  }
}

#orderForm .btn-primary {
  background: #000; /* Чёрный фон */
  color: #fff;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s ease;
  text-align: center;
  display: inline-block;
}

#orderForm .btn-primary:hover {
  background: #222; /* Темно-серый при наведении */
}
/* ===== FAQ Section ===== */
.faq-section {
  background: #f4f6f8;
  padding: 80px 20px;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  color: #111;
  margin-bottom: 40px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.05);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.faq-item:hover {
  box-shadow: 0 10px 32px rgba(0,0,0,0.08);
}

.faq-question {
  width: 100%;
  padding: 24px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #111;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.3s ease;
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 24px;
  top: 24px;
  font-size: 1.5rem;
  line-height: 1;
  color: #888;
  transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"]::after {
  transform: rotate(45deg);
  color: #111;
}

.faq-answer {
  display: none;
  padding: 0 24px 24px;
  font-size: 1rem;
  color: #444;
  line-height: 1.6;
  border-top: 1px solid #eee;
}