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

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #222;
  line-height: 1.6;
}

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ШАПКА */
.header {
  position: sticky;
  top: 0;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-weight: 700;
  font-size: 22px;
  color: #0b3d91;
}
.logo-text b { color: #ff7a00; }
.nav { display: flex; gap: 24px; }
.nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: 0.2s;
}
.nav a:hover { color: #ff7a00; }

/* ГЛАВНЫЙ БЛОК */
.hero {
  background: linear-gradient(135deg, #0b3d91, #1e5fc4);
  color: #fff;
  padding: 90px 0 70px;
  text-align: center;
}
.hero h1 { font-size: 42px; margin-bottom: 16px; line-height: 1.2; }
.hero-sub {
  font-size: 18px;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto 30px;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}
.hero-stats div { text-align: center; }
.hero-stats strong { display: block; font-size: 32px; color: #ff7a00; }
.hero-stats span { font-size: 14px; opacity: 0.85; }

/* КНОПКИ */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-size: 16px;
  transition: 0.2s;
}
.btn-primary { background: #ff7a00; color: #fff; }
.btn-primary:hover { background: #e56b00; transform: translateY(-2px); }
.btn-outline { background: transparent; color: #fff; border: 2px solid #fff; }
.btn-outline:hover { background: #fff; color: #0b3d91; }

/* СЕКЦИИ */
.section { padding: 80px 0; }
.section-dark { background: #f5f7fa; }
.section h2 { font-size: 32px; margin-bottom: 10px; text-align: center; color: #0b3d91; }
.section-sub { text-align: center; color: #666; margin-bottom: 50px; }

/* УСЛУГИ */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.card {
  background: #fff;
  border-radius: 14px;
  padding: 30px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: 0.25s;
  border-top: 4px solid #ff7a00;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(0,0,0,0.12); }
.card .icon { font-size: 40px; margin-bottom: 14px; }
.card h3 { font-size: 19px; margin-bottom: 10px; color: #0b3d91; }
.card p { color: #555; font-size: 15px; }

/* НАШИ РАБОТЫ */
.group-title {
  font-size: 20px;
  color: #0b3d91;
  margin: 40px 0 20px;
  padding-left: 12px;
  border-left: 4px solid #ff7a00;
  text-align: left;
}
.group-title:first-of-type { margin-top: 0; }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  transition: 0.3s;
  cursor: pointer;
  background: #e5e8ec;
}
.gallery img:hover { transform: scale(1.03); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }

/* ПРЕИМУЩЕСТВА */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.feature {
  display: flex;
  gap: 14px;
  background: #fff;
  padding: 22px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}
.feature span {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: #ff7a00;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.feature h4 { margin-bottom: 4px; color: #0b3d91; }
.feature p { font-size: 14px; color: #666; }

/* ЭТАПЫ */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; text-align: center; }
.step .num {
  width: 50px;
  height: 50px;
  margin: 0 auto 14px;
  background: #0b3d91;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}
.step h4 { color: #0b3d91; margin-bottom: 6px; }
.step p { font-size: 14px; color: #666; }

/* КОНТАКТЫ */
.contacts-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.contact-list { list-style: none; margin-top: 10px; }
.contact-list li { margin-bottom: 12px; font-size: 16px; }
.contact-list a { color: #0b3d91; text-decoration: none; font-weight: 600; }
.contact-list a:hover { color: #ff7a00; }

.form { display: flex; flex-direction: column; gap: 12px; }
.form input, .form textarea {
  padding: 14px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
}
.form input:focus, .form textarea:focus { outline: none; border-color: #ff7a00; }
.form textarea { min-height: 100px; resize: vertical; }
.form small { font-size: 12px; color: #888; }

/* ПОДВАЛ */
.footer { background: #0b3d91; color: #fff; padding: 24px 0; text-align: center; font-size: 14px; }

/* ЛАЙТБОКС */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  cursor: zoom-out;
  padding: 20px;
}
.lightbox.active { opacity: 1; visibility: visible; }

.lightbox-img {
  max-width: 85%;
  max-height: 85%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  transform: scale(0.9);
  transition: transform 0.3s ease;
  cursor: pointer;
}
.lightbox.active .lightbox-img { transform: scale(1); }

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 50px;
  font-weight: 300;
  color: #fff;
  cursor: pointer;
  line-height: 1;
  transition: 0.2s;
  user-select: none;
  z-index: 10;
}
.lightbox-close:hover { color: #ff7a00; transform: rotate(90deg); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 60px;
  color: #fff;
  cursor: pointer;
  user-select: none;
  padding: 20px;
  transition: 0.2s;
  line-height: 1;
  z-index: 10;
}
.lightbox-nav:hover { color: #ff7a00; }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-counter {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 16px;
  background: rgba(0, 0, 0, 0.5);
  padding: 8px 20px;
  border-radius: 20px;
  letter-spacing: 1px;
}

/* МОБИЛЬНАЯ ВЕРСИЯ */
@media (max-width: 768px) {
  .nav { display: none; }
  .header-inner { justify-content: space-between; }
  .logo { font-size: 18px; }
  .hero h1 { font-size: 28px; }
  .hero-stats { gap: 30px; }
  .contacts-wrap { grid-template-columns: 1fr; gap: 30px; }
  .section { padding: 50px 0; }
  .section h2 { font-size: 26px; }
  .gallery { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
  .gallery img { height: 160px; }
  .group-title { font-size: 17px; margin: 30px 0 14px; }

  .lightbox-close { font-size: 40px; top: 10px; right: 15px; }
  .lightbox-img { max-width: 95%; max-height: 80%; }
  .lightbox-nav { font-size: 40px; padding: 12px; }
  .lightbox-prev { left: 5px; }
  .lightbox-next { right: 5px; }
  .lightbox-counter { bottom: 20px; font-size: 14px; padding: 6px 16px; }
}