:root {
  --navy: #0f2744;
  --navy-dark: #081a2e;
  --ice: #e8f4fc;
  --ice-light: #f4faff;
  --accent: #1a8fd4;
  --accent-hover: #1578b5;
  --header-offset: 5.5rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Manrope', system-ui, -apple-system, sans-serif;
}

[id] {
  scroll-margin-top: var(--header-offset);
}

.snowflake-bg {
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.8) 0 1px, transparent 2px),
    radial-gradient(circle at 80% 40%, rgba(255, 255, 255, 0.6) 0 1px, transparent 2px),
    radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.5) 0 1px, transparent 2px),
    linear-gradient(180deg, var(--ice-light) 0%, var(--ice) 100%);
  background-size: 120px 120px, 160px 160px, 200px 200px, 100% 100%;
}

.hero-bg {
  background-image: url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
}

.hero-bg--vitrin { background-image: url('../images/services/vitrin.svg'); }
.hero-bg--morozilnye { background-image: url('../images/services/morozilnye-kamery.svg'); }
.hero-bg--shkafy { background-image: url('../images/services/holodilnye-shkafy.svg'); }
.hero-bg--kompressory { background-image: url('../images/services/kompressory.svg'); }
.hero-bg--freon { background-image: url('../images/services/freon.svg'); }
.hero-bg--konditsionery { background-image: url('../images/services/konditsionery.svg'); }
.hero-bg--holodilniki { background-image: url('../images/services/holodilniki.svg'); }
.hero-bg--obsluzhivanie { background-image: url('../images/services/obsluzhivanie.svg'); }

.service-photo {
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(15, 39, 68, 0.15);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item[open] summary .faq-chevron {
  transform: rotate(180deg);
}

.glass-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.section-title::after {
  content: '❄';
  display: block;
  margin-top: 0.5rem;
  font-size: 1rem;
  opacity: 0.5;
}

.step-line::before {
  content: '';
  position: absolute;
  top: 2rem;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(26, 143, 212, 0.2));
  z-index: 0;
}

.service-menu {
  position: relative;
}

.site-menu-toggle {
  display: inline-flex;
}

.site-brand,
.site-brand-copy {
  min-width: 0;
}

.site-logo {
  flex-shrink: 0;
}

.site-tagline {
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero-actions {
  align-items: stretch;
}

.hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.price-table-card {
  overflow-x: auto;
}

.price-table {
  min-width: 35rem;
}

.service-menu__button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: inherit;
  font-weight: 600;
  line-height: 1;
  padding: 0.75rem 0;
}

.service-menu__button:hover,
.service-menu__button:focus-visible {
  color: var(--accent);
  outline: none;
}

.service-menu__chevron {
  transition: transform 0.2s ease;
}

.service-menu:hover .service-menu__chevron,
.service-menu:focus-within .service-menu__chevron {
  transform: rotate(180deg);
}

.service-menu__panel {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: min(42rem, calc(100vw - 2rem));
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem;
  padding: 0.75rem;
  background: #fff;
  border: 1px solid var(--ice);
  border-radius: 0.75rem;
  box-shadow: 0 18px 45px rgba(15, 39, 68, 0.16);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.service-menu__panel::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -0.85rem;
  height: 0.85rem;
}

.service-menu:hover .service-menu__panel,
.service-menu:focus-within .service-menu__panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.service-menu__link {
  display: block;
  padding: 0.75rem;
  border-radius: 0.5rem;
  transition: background 0.16s ease, color 0.16s ease;
}

.service-menu__link:hover,
.service-menu__link:focus-visible {
  background: var(--ice-light);
  color: var(--accent);
  outline: none;
}

.service-menu__link span,
.mobile-service-link span {
  display: block;
  color: var(--navy);
  font-weight: 800;
}

.service-menu__link small,
.mobile-service-link small {
  display: block;
  margin-top: 0.15rem;
  color: #64748b;
  font-size: 0.78rem;
  font-weight: 500;
}

.mobile-services {
  display: grid;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
}

.mobile-services__title {
  color: var(--navy);
  font-weight: 800;
}

.mobile-service-link {
  display: block;
  padding: 0.75rem;
  background: var(--ice-light);
  border: 1px solid var(--ice);
  border-radius: 0.5rem;
}

[data-animate] {
  opacity: 0;
  transform: translateY(16px);
}

[data-animate].is-visible {
  animation: fadeIn 0.8s ease-out both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.float-icon {
  animation: float 4s ease-in-out infinite;
}

.video-lazy {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--navy-dark);
  cursor: pointer;
}

.video-lazy__poster,
.video-lazy__player {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-lazy__play {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(8, 26, 46, 0.5);
  color: #fff;
  border: 0;
  transition: background 0.2s;
}

.video-lazy__play:hover,
.video-lazy__play:focus-visible {
  background: rgba(8, 26, 46, 0.6);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.video-lazy__icon {
  width: 4rem;
  height: 4rem;
  border-radius: 9999px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.video-lazy.is-loaded .video-lazy__play,
.video-lazy.is-loaded .video-lazy__poster {
  display: none;
}

@media (max-width: 1023px) {
  .step-line::before {
    display: none;
  }
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .hero-action {
    width: auto;
  }
}

@media (min-width: 1280px) {
  .site-nav,
  .site-actions {
    display: flex;
  }

  .site-menu-toggle,
  .site-mobile-menu {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }

  [data-animate].is-visible {
    animation: none;
  }

  .float-icon {
    animation: none;
  }
}

/* Form improvements */
.form-input {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.15);
  border-color: #eab308;
}

#form-error, #form-notice {
  animation: fadeIn 0.2s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}