/* Палитра в духе НЛМК: синий / голубой / чёрный / белый */
:root {
  --color-primary: #003966;
  --color-primary-dark: #001d33;
  --color-accent: #008fff;
  --color-accent-hover: #0072cc;
  --color-bg: #f0f5fa;
  --color-white: #ffffff;
  --color-text: #0a0a0a;
  --color-text-light: #334155;
  --color-border: #c5d5e6;
  --color-surface: #e8f1f9;
  --shadow-sm: 0 1px 2px 0 rgba(0, 29, 51, 0.06);
  --shadow-md: 0 4px 12px -2px rgba(0, 29, 51, 0.12);
  --shadow-lg: 0 12px 24px -4px rgba(0, 29, 51, 0.16);
  --transition: all 0.25s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: 0.85rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo img {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-primary);
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-white);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  align-items: center;
}

.nav a {
  color: #cce9ff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav a:hover {
  color: var(--color-white);
}

.header-contacts {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition);
}

.contact-link:hover {
  color: var(--color-white);
}

/* Main */
.main-content {
  flex: 1;
  padding: 2rem 0 3rem;
}

.intro-text {
  font-size: 1.125rem;
  color: var(--color-text-light);
  text-align: center;
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 1.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 3px solid var(--color-accent);
}

.services-section,
.content-section {
  margin-bottom: 3.5rem;
}

/* Categories */
.category-card {
  background-color: var(--color-white);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 2rem;
}

.category-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
  margin: 0;
  padding: 1rem 1.25rem;
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--color-border);
}

.category-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  padding: 1rem 1.25rem 1.5rem;
  background-color: var(--color-surface);
}

.service-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  padding: 1.25rem 1rem;
  background-color: var(--color-white);
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font: inherit;
  color: inherit;
  width: 100%;
}

.service-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.service-item.active {
  border-color: var(--color-primary);
  background-color: #f0f7fc;
}

.service-icon {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  overflow: hidden;
  background-color: var(--color-border);
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.service-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* Content blocks */
.content-block {
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  padding: 1.75rem 2rem;
  color: var(--color-text-light);
}

.content-block p + p {
  margin-top: 1rem;
}

.reviews-placeholder {
  text-align: center;
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.contacts-info .contact-link.phone-line {
  display: block;
  color: var(--color-primary);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.contacts-info .contact-link.phone-line:hover {
  color: var(--color-accent-hover);
}

.contacts-subtitle {
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.contacts-subtitle:first-child {
  margin-top: 0;
}

.map-wrap {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--color-white);
  min-height: 420px;
}

.map-wrap iframe {
  display: block;
  border: 0;
  width: 100%;
  height: 100%;
  min-height: 420px;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.25rem;
  padding: 0.85rem 1.4rem;
  background: var(--color-accent);
  color: var(--color-white);
  text-decoration: none;
  font-weight: 600;
  border-radius: 8px;
  transition: var(--transition);
}

.btn-link:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-link--footer {
  margin-top: 0.5rem;
  background: var(--color-accent);
}

/* Panels */
.service-panel,
.contact-panel {
  position: fixed;
  top: 0;
  right: -100%;
  width: 400px;
  max-width: 100%;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: -4px 0 20px rgba(0, 29, 51, 0.2);
  z-index: 200;
  transition: var(--transition);
  overflow-y: auto;
}

.contact-panel {
  z-index: 201;
}

.service-panel.open,
.contact-panel.open {
  right: 0;
}

.panel-content {
  padding: 2rem;
}

.panel-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.panel-icon img {
  width: 160px;
  height: 120px;
  border-radius: 12px;
  object-fit: cover;
  display: block;
  background-color: var(--color-border);
}

.panel-text {
  text-align: center;
}

.panel-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.panel-description {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.8;
  text-align: left;
}

.panel-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background-color: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1.5rem;
  width: 100%;
}

.panel-action-btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-info .contact-link {
  justify-content: center;
  padding: 1rem;
  background-color: #e8f4ff;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
}

.contact-info .contact-link:hover {
  background-color: #d4ebff;
  color: var(--color-primary-dark);
}

.panel-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-accent);
  background: #e8f4ff;
  border-radius: 8px;
  color: var(--color-primary);
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 10;
}

.panel-close:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* Footer */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: 2rem 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: center;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.footer-logo img {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  object-fit: cover;
}

.footer-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.footer-addresses {
  color: #b3ddff;
  font-size: 0.92rem;
}

.footer-addresses p + p {
  margin-top: 0.4rem;
}

.footer-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
}

.footer-contacts .contact-link {
  padding: 0.5rem 1rem;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
}

.footer-contacts .contact-link:hover {
  background-color: rgba(255, 255, 255, 0.16);
  color: var(--color-white);
}

/* Responsive */
@media (max-width: 960px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .nav {
    justify-content: center;
  }

  .header-contacts {
    justify-content: center;
  }

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

@media (max-width: 768px) {
  .category-content {
    grid-template-columns: 1fr;
  }

  .service-icon {
    max-width: 100%;
  }

  .service-panel,
  .contact-panel {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .header-contacts {
    flex-direction: column;
    gap: 0.4rem;
  }

  .nav {
    gap: 0.5rem 0.85rem;
    font-size: 0.9rem;
  }

  .footer-contacts {
    flex-direction: column;
    width: 100%;
  }

  .footer-contacts .contact-link {
    width: 100%;
    justify-content: center;
  }

  .content-block {
    padding: 1.25rem;
  }

  .panel-content {
    padding: 1.5rem;
  }
}