/* ============================================================
   KRONE Uzbekistan — CSS Architecture
   Premium corporate website
   ============================================================ */

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

:root {
  --color-primary: #00427B;
  --color-primary-dark: #003366;
  --color-accent: #009ACE;
  --color-dark: #07131F;
  --color-dark-deep: #0B0F14;
  --color-gray: #6E6E73;
  --color-gray-light: #86868B;
  --color-bg: #F5F7FA;
  --color-white: #FFFFFF;
  --color-border: #D2D2D7;

  --font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;

  --header-h: 64px;
  --container: 1200px;
  --container-wide: 1400px;
  --gutter: 24px;

  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-premium: cubic-bezier(0.16, 1, 0.3, 1);

  --dur-fast: 0.2s;
  --dur: 0.4s;
  --dur-slow: 0.8s;
  --dur-reveal: 0.9s;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-white);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* --- Keyboard focus (visible only for keyboard users) --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}
/* On dark surfaces a white ring reads clearly */
.hero :focus-visible,
.product__hero :focus-visible,
.contacts :focus-visible,
.lightbox :focus-visible,
.header:not(.is-scrolled) :focus-visible {
  outline-color: var(--color-white);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.hide-mobile { display: inline; }

/* --- Section Commons --- */
.section-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--color-dark);
  margin-bottom: 20px;
}

.section-desc {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--color-gray);
  line-height: 1.6;
  max-width: 640px;
}

.section-header { margin-bottom: 64px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  padding: 16px 32px;
  border-radius: 980px;
  transition: all var(--dur) var(--ease-smooth);
  white-space: nowrap;
}

.btn--sm { font-size: 0.9375rem; padding: 12px 24px; }
.btn--lg { font-size: 1.0625rem; padding: 18px 36px; }

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: scale(1.02);
}
.btn--primary:active { transform: scale(0.98); }

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
}
.btn--secondary:hover {
  border-color: var(--color-primary);
  background-color: rgba(0, 66, 123, 0.04);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}
.btn--outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--telegram {
  background-color: #2AABEE;
  color: var(--color-white);
}
.btn--telegram:hover { background-color: #229ED9; transform: scale(1.02); }

.btn--whatsapp {
  background-color: #25D366;
  color: var(--color-white);
}
.btn--whatsapp:hover { background-color: #20BD5A; transform: scale(1.02); }

/* --- Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-reveal) var(--ease-premium),
              transform var(--dur-reveal) var(--ease-premium);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background-color var(--dur) var(--ease-smooth),
              box-shadow var(--dur) var(--ease-smooth);
}

.header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.header__inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  color: var(--color-white);
  transition: color var(--dur) var(--ease-smooth);
  z-index: 101;
}
.header.is-scrolled .header__logo { color: var(--color-primary); }

.header__logo-svg {
  height: 24px;
  width: auto;
}

.header__nav { display: none; }

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--dur-fast) var(--ease-smooth);
  position: relative;
}
.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1.5px;
  background-color: currentColor;
  transition: width var(--dur) var(--ease-premium);
}
.header__nav-link:hover::after { width: 100%; }

.header.is-scrolled .header__nav-link { color: var(--color-gray); }
.header.is-scrolled .header__nav-link:hover { color: var(--color-dark); }

.header__cta {
  display: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 980px;
  background-color: var(--color-primary);
  color: var(--color-white);
  transition: all var(--dur) var(--ease-smooth);
}
.header__cta:hover { background-color: var(--color-primary-dark); transform: scale(1.03); }

.header__burger {
  width: 40px; height: 40px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 6px; z-index: 101;
}
.header__burger span {
  display: block; width: 22px; height: 1.5px;
  background-color: var(--color-white);
  transition: all var(--dur) var(--ease-smooth);
  border-radius: 2px;
}
.header.is-scrolled .header__burger span { background-color: var(--color-dark); }
.header__burger.is-active span:first-child { transform: translateY(3.75px) rotate(45deg); }
.header__burger.is-active span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--header-h) var(--gutter) 40px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--dur-slow) var(--ease-premium),
              visibility 0s linear var(--dur-slow),
              transform var(--dur-slow) var(--ease-premium);
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity var(--dur-slow) var(--ease-premium),
              visibility 0s linear 0s,
              transform var(--dur-slow) var(--ease-premium);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mobile-menu__link {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  padding: 8px 0;
  transition: color var(--dur-fast) var(--ease-smooth);
  display: block;
}
.mobile-menu__link:hover { color: var(--color-primary); }

.mobile-menu__footer {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}
.mobile-menu__phone {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  display: block;
  margin-bottom: 6px;
}
.mobile-menu__hours {
  font-size: 0.875rem;
  color: var(--color-gray);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 1200px;
  display: flex;
  align-items: flex-end;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  animation: heroZoom 18s ease-out forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.06); }
  to { transform: scale(1); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(
      to right,
      rgba(7, 19, 31, 0.75) 0%,
      rgba(7, 19, 31, 0.45) 50%,
      rgba(7, 19, 31, 0.1) 100%
    ),
    linear-gradient(
      to bottom,
      rgba(7, 19, 31, 0.25) 0%,
      rgba(7, 19, 31, 0.05) 35%,
      rgba(7, 19, 31, 0.4) 65%,
      rgba(7, 19, 31, 0.8) 100%
    );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  width: 100%;
}

.hero__badge {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 24px;
  max-width: 780px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.3125rem);
  font-weight: 400;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 980px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.hero__pill::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.hero__pill--available {
  background-color: rgba(34, 197, 94, 0.15);
  color: #4ADE80;
  border: 1px solid rgba(34, 197, 94, 0.25);
}
.hero__pill--available::before { background-color: #22C55E; }

.hero__pill--transit {
  background-color: rgba(251, 191, 36, 0.15);
  color: #FCD34D;
  border: 1px solid rgba(251, 191, 36, 0.25);
}
.hero__pill--transit::before { background-color: #FBBF24; }

.hero__pill--official {
  background-color: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.hero__pill--official::before { background-color: var(--color-accent); }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* --- Status Badges --- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 980px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-badge--available {
  background-color: rgba(34, 197, 94, 0.1);
  color: #16A34A;
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.status-badge--available::before { background-color: #22C55E; }

.status-badge--transit {
  background-color: rgba(245, 158, 11, 0.1);
  color: #D97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.status-badge--transit::before { background-color: #F59E0B; }

.status-badge--hero {
  margin-bottom: 16px;
  background-color: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}
.status-badge--hero.status-badge--available { color: #4ADE80; }
.status-badge--hero.status-badge--transit { color: #FCD34D; }

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollPulse 2.5s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.2; transform: scaleY(0.5); }
}

/* ============================================================
   EQUIPMENT
   ============================================================ */
.equipment {
  padding: 120px 0;
  background-color: var(--color-bg);
}

.equipment__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.equipment__card {
  background: var(--color-white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--dur) var(--ease-smooth);
}
.equipment__card:hover {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
}

.equipment__card-image-link { display: block; }

.equipment__card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg);
}
.equipment__card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-premium);
}
.equipment__card:hover .equipment__card-image img {
  transform: scale(1.03);
}

.equipment__card-body { padding: 32px; }

.equipment__card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.equipment__card-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0;
}

.equipment__card-desc {
  font-size: 1rem;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 20px;
}

.equipment__card-advantages {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.equipment__card-advantages li {
  font-size: 0.9375rem;
  color: var(--color-dark);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}
.equipment__card-advantages li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* Specs preview */
.equipment__card-specs {
  background-color: var(--color-bg);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 24px;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-smooth);
}
.equipment__card-specs:hover {
  background-color: #EDF0F4;
}

.equipment__card-specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.equipment__card-spec {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.equipment__card-spec-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.01em;
}
.equipment__card-spec-label {
  font-size: 0.75rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.equipment__card-specs-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 0;
  transition: gap var(--dur) var(--ease-smooth);
}
.equipment__card-specs:hover .equipment__card-specs-btn { gap: 12px; }

.equipment__card-specs-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
}

.equipment__card-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ============================================================
   WHY KRONE
   ============================================================ */
.why {
  padding: 120px 0;
  background-color: var(--color-white);
}

.why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.why__number {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 14px;
}
.why__item-title {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 10px;
}
.why__item-desc {
  font-size: 1rem;
  color: var(--color-gray);
  line-height: 1.6;
  max-width: 400px;
}

/* ============================================================
   PRODUCT SECTIONS
   ============================================================ */
.product { overflow: hidden; }

.product__hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  padding: 80px 0;
  overflow: hidden;
}

.product__hero-bg {
  position: absolute;
  inset: 0;
}
.product__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.product--profi .product__hero-img {
  object-position: center 55%;
}
.product--cool .product__hero-img {
  object-position: center 45%;
}

.product__hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to right,
      rgba(7, 19, 31, 0.7) 0%,
      rgba(7, 19, 31, 0.35) 55%,
      rgba(7, 19, 31, 0.05) 100%
    ),
    linear-gradient(
      to bottom,
      rgba(7, 19, 31, 0.1) 0%,
      rgba(7, 19, 31, 0.05) 30%,
      rgba(7, 19, 31, 0.45) 65%,
      rgba(7, 19, 31, 0.8) 100%
    );
}

.product--profi .product__hero-bg { background-color: var(--color-dark); }
.product--cool .product__hero-bg { background-color: var(--color-primary); }

.product__hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  width: 100%;
}

.product__label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
}

.product__title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-white);
  margin-bottom: 16px;
}

.product__subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.375rem);
  font-weight: 400;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.75);
}

.product__details {
  padding: 80px 0 100px;
}

.product__info {
  margin-bottom: 48px;
  max-width: 700px;
}
.product__info-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}
.product__info-desc {
  font-size: 1.0625rem;
  color: var(--color-gray);
  line-height: 1.7;
}

.product__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Product Features --- */
.product__features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 56px;
}

.product__feature {
  background-color: var(--color-bg);
  border-radius: 16px;
  padding: 28px;
  transition: transform var(--dur) var(--ease-premium),
              box-shadow var(--dur) var(--ease-premium);
}
.product__feature:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.product__feature-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  display: block;
  margin-bottom: 12px;
}

.product__feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  margin-bottom: 8px;
  line-height: 1.3;
}

.product__feature-desc {
  font-size: 0.9375rem;
  color: var(--color-gray);
  line-height: 1.6;
}

/* ============================================================
   PARTNERSHIP
   ============================================================ */
.partnership {
  padding: 120px 0;
  background-color: var(--color-white);
}

.partnership__inner {
  max-width: 960px;
}

.partnership__header {
  margin-bottom: 40px;
}

.partnership__subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.3125rem);
  color: var(--color-gray);
  line-height: 1.55;
  max-width: 640px;
}

.partnership__text {
  font-size: 1.0625rem;
  color: var(--color-gray);
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 48px;
}

.partnership__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.partnership__fact {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 24px 28px;
  background-color: var(--color-bg);
  border-radius: 14px;
  transition: transform var(--dur) var(--ease-premium),
              box-shadow var(--dur) var(--ease-premium);
}
.partnership__fact:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
}

.partnership__fact-number {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.partnership__fact-text {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
}

/* ============================================================
   CERTIFICATES
   ============================================================ */
.certificates {
  padding: 120px 0;
  background-color: var(--color-bg);
}

.certificates__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.certificates__item {
  display: block;
  background: var(--color-white);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: transform var(--dur) var(--ease-premium),
              box-shadow var(--dur) var(--ease-premium);
}
.certificates__item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}
.certificates__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 4;
  transition: transform var(--dur-slow) var(--ease-premium);
}
.certificates__item:hover img {
  transform: scale(1.04);
}

.certificates__label {
  display: block;
  padding: 10px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ============================================================
   CONTACTS
   ============================================================ */
.contacts {
  padding: 120px 0;
  background-color: var(--color-dark);
  color: var(--color-white);
}

.contacts .section-label { color: var(--color-accent); }
.contacts .section-title { color: var(--color-white); }

.contacts__inner {
  max-width: 640px;
}

.contacts__desc {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  margin-bottom: 40px;
}

.contacts__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

.contacts__info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.contacts__info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.contacts__info-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
}
.contacts__info-item a {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  transition: color var(--dur-fast) var(--ease-smooth);
}
.contacts__info-item a:hover { color: var(--color-white); }
.contacts__info-item span {
  color: rgba(255, 255, 255, 0.6);
}

/* --- Contacts Availability --- */
.contacts__availability {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 40px;
}

.contacts__availability-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.contacts__availability-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contacts__availability-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contacts__availability-name {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox[hidden] { display: none; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalIn var(--dur) var(--ease-premium);
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox__container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 60px 20px 40px;
}

.lightbox__image {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.4);
  animation: modalSlideIn var(--dur) var(--ease-premium);
}

.lightbox__close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  background-color: rgba(255, 255, 255, 0.1);
  transition: all var(--dur-fast) var(--ease-smooth);
  z-index: 3;
}
.lightbox__close:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  background-color: rgba(255, 255, 255, 0.1);
  transition: all var(--dur-fast) var(--ease-smooth);
  z-index: 3;
}
.lightbox__nav:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}
.lightbox__nav--prev { left: 16px; }
.lightbox__nav--next { right: 16px; }

.lightbox__counter {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  z-index: 3;
}

/* ============================================================
   AVAILABILITY PAGE
   ============================================================ */
.avail-hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + 60px) 0 64px;
  overflow: hidden;
}
.avail-hero__bg {
  position: absolute;
  inset: 0;
  background-color: var(--color-primary);
}
.avail-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  animation: heroZoom 18s ease-out forwards;
}
.avail-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to right,
      rgba(7, 19, 31, 0.78) 0%,
      rgba(7, 19, 31, 0.45) 55%,
      rgba(7, 19, 31, 0.1) 100%
    ),
    linear-gradient(
      to bottom,
      rgba(7, 19, 31, 0.3) 0%,
      rgba(7, 19, 31, 0.1) 35%,
      rgba(7, 19, 31, 0.55) 100%
    );
}
.avail-hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  width: 100%;
}

.avail-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
}
.avail-breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--dur-fast) var(--ease-smooth);
}
.avail-breadcrumb a:hover { color: var(--color-white); }

.avail-hero__label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 14px;
}
.avail-hero__title {
  font-size: clamp(2.5rem, 7vw, 4.75rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-white);
  margin-bottom: 16px;
}
.avail-hero__subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.3125rem);
  font-weight: 400;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
}

/* Catalog */
.catalog {
  padding: 100px 0;
  background-color: var(--color-bg);
}
.catalog__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 48px;
}
.catalog__count {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-dark);
}
.catalog__count span { color: var(--color-primary); }
.catalog__hint {
  font-size: 0.9375rem;
  color: var(--color-gray);
}

.catalog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.catalog-card {
  background: var(--color-white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--dur) var(--ease-smooth),
              transform var(--dur) var(--ease-premium);
}
.catalog-card:hover {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.catalog-card__media {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg);
  padding: 0;
}
.catalog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform var(--dur-slow) var(--ease-premium);
}
.catalog-card:hover .catalog-card__media img { transform: scale(1.04); }
.catalog-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.catalog-card__body { padding: 28px; }
.catalog-card__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.catalog-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-bottom: 10px;
}
.catalog-card__desc {
  font-size: 1rem;
  color: var(--color-gray);
  line-height: 1.6;
  margin-bottom: 20px;
}
.catalog-card__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 20px 0;
  margin-bottom: 24px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.catalog-card__specs dt {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gray);
  margin-bottom: 2px;
}
.catalog-card__specs dd {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-dark);
}
.catalog-card__price {
  font-size: 0.9375rem;
  color: var(--color-gray);
  margin-bottom: 20px;
}
.catalog-card__price span {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark);
  margin-right: 6px;
}
.catalog-card__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Wide product modal */
.modal--wide .modal__container { max-width: 720px; }
.modal--wide .modal__close {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 210;
  width: 48px;
  height: 48px;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal--wide .modal__close:hover { background-color: var(--color-white); }

.product-modal__media {
  background-color: var(--color-bg);
}
.product-modal__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center top;
}
.product-modal__content { padding: 28px 32px 32px; }
.product-modal__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.product-modal__head .modal__title { margin-bottom: 12px; }

.product-modal__price {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  margin-top: 24px;
  padding: 24px;
  background-color: var(--color-bg);
  border-radius: 16px;
}
.product-modal__price-main {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.product-modal__price-value {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  line-height: 1;
}
.product-modal__price-note {
  font-size: 0.875rem;
  color: var(--color-gray);
}
.product-modal__price-facts {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.product-modal__price-facts li {
  font-size: 0.875rem;
  color: var(--color-dark);
  padding-left: 18px;
  position: relative;
}
.product-modal__price-facts li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}
.product-modal__desc {
  font-size: 1rem;
  color: var(--color-gray);
  line-height: 1.7;
  margin-top: 20px;
}
.product-modal__subhead {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark);
  margin: 28px 0 14px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}
.product-modal__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.product-modal__features li {
  font-size: 0.9375rem;
  color: var(--color-gray);
  line-height: 1.55;
  padding-left: 22px;
  position: relative;
}
.product-modal__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-accent);
}
.product-modal__features strong {
  color: var(--color-dark);
  font-weight: 600;
}
.product-modal__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery {
  padding: 100px 0;
  background-color: var(--color-white);
}

.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.gallery__filter {
  padding: 10px 22px;
  border-radius: 980px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-gray);
  background-color: var(--color-bg);
  transition: background-color var(--dur-fast) var(--ease-smooth),
              color var(--dur-fast) var(--ease-smooth);
}
.gallery__filter:hover { color: var(--color-dark); }
.gallery__filter.is-active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.gallery__grid {
  column-count: 2;
  column-gap: 14px;
}
.gallery__item {
  display: block;
  width: 100%;
  margin: 0 0 14px;
  padding: 0;
  border-radius: 14px;
  overflow: hidden;
  background-color: var(--color-bg);
  break-inside: avoid;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: transform var(--dur) var(--ease-premium),
              box-shadow var(--dur) var(--ease-premium);
}
.gallery__item:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.1);
}
.gallery__item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--dur-slow) var(--ease-premium);
}
.gallery__item:hover img { transform: scale(1.04); }
.gallery__item[hidden] { display: none; }

.gallery__empty {
  font-size: 1.0625rem;
  color: var(--color-gray);
  padding: 24px 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: 48px 0;
  background-color: var(--color-dark-deep);
  color: rgba(255, 255, 255, 0.6);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer__brand { display: flex; align-items: center; }
.footer__logo-svg {
  height: 20px;
  width: auto;
  color: rgba(255, 255, 255, 0.7);
}

.footer__text {
  font-size: 0.875rem;
  line-height: 1.5;
}

.footer__contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.footer__contacts a {
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--dur-fast) var(--ease-smooth);
}
.footer__contacts a:hover { color: var(--color-white); }

.footer__bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer__copy {
  font-size: 0.8125rem;
  opacity: 0.4;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal[hidden] { display: none; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: modalIn var(--dur) var(--ease-premium);
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal__container {
  position: relative;
  background-color: var(--color-white);
  border-radius: 20px;
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.2);
  animation: modalSlideIn var(--dur) var(--ease-premium);
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 32px 32px 0;
}

.modal__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.modal__subtitle {
  font-size: 0.9375rem;
  color: var(--color-gray);
  margin-top: 4px;
}

.modal__close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray);
  transition: all var(--dur-fast) var(--ease-smooth);
  flex-shrink: 0;
}
.modal__close:hover {
  background-color: var(--color-bg);
  color: var(--color-dark);
}

.modal__body { padding: 24px 32px; }

.modal__table {
  width: 100%;
  border-collapse: collapse;
}
.modal__table td {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  vertical-align: top;
}
.modal__table tr:last-child td { border-bottom: none; }
.modal__table td:first-child {
  color: var(--color-gray);
  padding-right: 24px;
  white-space: nowrap;
}
.modal__table td:last-child {
  font-weight: 600;
  text-align: right;
  color: var(--color-dark);
}

.modal__footer {
  padding: 8px 32px 32px;
}
.modal__footer .btn { width: 100%; }

@keyframes modalIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============================================================
   RESPONSIVE — Tablet (768px+)
   ============================================================ */
@media (min-width: 768px) {
  :root { --gutter: 40px; }

  .equipment__grid { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: repeat(2, 1fr); gap: 40px 32px; }
  .certificates__grid { grid-template-columns: repeat(3, 1fr); }
  .product__features { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .partnership__facts { grid-template-columns: repeat(2, 1fr); }
  .catalog__grid { grid-template-columns: repeat(2, 1fr); }
  .gallery__grid { column-count: 3; }
}

/* ============================================================
   RESPONSIVE — Desktop (1024px+)
   ============================================================ */
@media (min-width: 1024px) {
  :root { --gutter: 48px; --header-h: 72px; }

  .header__nav { display: block; }
  .header__cta { display: inline-flex; }
  .header__burger { display: none; }

  .hero { padding-bottom: 100px; }

  .why__grid { grid-template-columns: repeat(4, 1fr); gap: 32px; }
  .product__features { grid-template-columns: repeat(3, 1fr); }
  .gallery__grid { column-count: 4; }
}

/* ============================================================
   Mobile (<768px)
   ============================================================ */
@media (max-width: 767px) {
  .hide-mobile { display: none; }

  .hero {
    align-items: flex-end;
    padding-bottom: 56px;
    min-height: 100svh;
  }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { text-align: center; }

  .equipment { padding: 80px 0; }
  .why { padding: 80px 0; }
  .section-header { margin-bottom: 40px; }

  .product__hero { min-height: 400px; padding: 60px 0; }
  .product__hero-overlay {
    background:
      linear-gradient(
        to bottom,
        rgba(7, 19, 31, 0.2) 0%,
        rgba(7, 19, 31, 0.5) 55%,
        rgba(7, 19, 31, 0.85) 100%
      );
  }
  .partnership { padding: 80px 0; }

  .certificates { padding: 80px 0; }
  .contacts { padding: 80px 0; }

  .contacts__buttons { flex-direction: column; }
  .hero__pills { flex-direction: column; align-items: flex-start; }
  .lightbox__nav { display: none; }
  .lightbox__image { max-width: 95%; }

  .equipment__card-specs-grid { grid-template-columns: 1fr 1fr; }

  .modal { padding: 12px; }
  .modal__header { padding: 24px 20px 0; }
  .modal__body { padding: 20px; }
  .modal__footer { padding: 8px 20px 24px; }
  .modal__table td:first-child { white-space: normal; }

  .avail-hero { min-height: 440px; padding: calc(var(--header-h) + 40px) 0 48px; }
  .catalog { padding: 64px 0; }
  .catalog-card__body { padding: 24px; }
  .gallery { padding: 64px 0; }
  .lightbox--gallery .lightbox__nav {
    display: flex;
    width: 40px;
    height: 40px;
  }
  .lightbox--gallery .lightbox__nav--prev { left: 10px; }
  .lightbox--gallery .lightbox__nav--next { right: 10px; }
  .product-modal__content { padding: 24px 20px 28px; }
  .product-modal__cta { flex-direction: column; align-items: stretch; }
  .product-modal__cta .btn { text-align: center; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   Print
   ============================================================ */
@media print {
  .header, .hero__scroll, .mobile-menu, .modal, .lightbox { display: none !important; }
  .hero { height: auto; min-height: auto; max-height: none; padding: 40px 0; }
  .hero__bg, .hero__overlay { display: none; }
  .hero__title, .hero__badge, .hero__subtitle { color: #000; }
}