/* ===========================================================
   ЛиК-Мастер — Landing Page Styles
   Industrial Style | Mobile First | CSS3 Only
   =========================================================== */

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Palette — Industrial & Reliable */
  --color-primary: #1731b5;
  --color-primary-dark: #0F172A;
  --color-primary-light: #334155;
  --color-accent: #E63946;
  --color-accent-dark: #DC2626;
  --color-accent-glow: #f87171;

  --color-bg: #ffffff;
  --color-bg-alt: #F8FAFC;
  --color-bg-dark: #0F172A;

  --color-text: #334155;
  --color-text-muted: #64748B;
  --color-text-light: #ffffff;

  --color-border: #E2E8F0;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --section-py: 4rem;
  --container-px: 1.25rem;
  --container-max: 1200px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, .08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, .12);
  --shadow-card: 0 4px 20px rgba(15, 23, 42, .10);

  /* Transitions */
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

/* ── Reset & Base ──────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

address {
  font-style: normal;
}

/* ── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* ── Section Titles ────────────────────────────────────────── */
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--color-primary-dark);
  text-align: center;
  margin-bottom: .5rem;
  letter-spacing: -0.02em;
}

.section-title--light {
  color: var(--color-text-light);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.75rem;
  font-family: var(--font-family);
  font-size: .95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-text-light);
  border-color: var(--color-accent);
  box-shadow: 0 4px 14px rgba(230, 57, 70, .35);
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: 0 6px 20px rgba(220, 38, 38, .45);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-light);
  border-color: rgba(255, 255, 255, .5);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: rgba(255, 255, 255, .12);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ================================================================
   1. HEADER
   ================================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.header:hover {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding-top: .65rem;
  padding-bottom: .65rem;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  transition: color var(--transition);
  flex-shrink: 0;
}

.header__logo:hover {
  color: var(--color-accent);
}

.header__logo-icon {
  font-size: 1.4rem;
}

.header__logo-text small {
  display: block;
  font-size: .6rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* Navigation */
.header__nav {
  display: none;
  /* hidden on mobile */
  gap: .25rem;
}

.header__nav-link {
  padding: .4rem .85rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.header__nav-link:hover,
.header__nav-link:focus-visible {
  color: var(--color-accent);
  background: var(--color-bg-alt);
}

/* Phone button */
.header__phone-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: var(--color-accent);
  color: #fff;
  padding: .5rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .85rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(230, 57, 70, .25);
  flex-shrink: 0;
}

.header__phone-btn:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 4px 14px rgba(220, 38, 38, .35);
  transform: translateY(-1px);
}

.header__phone-icon {
  flex-shrink: 0;
}

/* ================================================================
   2. HERO
   ================================================================ */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1731b5;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg,
      rgba(15, 23, 42, .92) 0%,
      rgba(23, 49, 181, .85) 50%,
      rgba(15, 23, 42, .95) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 0;
  max-width: 750px;
}

.hero__title {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.025em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, .2);
}

.hero__subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: rgba(255, 255, 255, .75);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ================================================================
   3. CATALOG
   ================================================================ */
.catalog {
  padding: var(--section-py) 0;
  background: var(--color-bg-alt);
}

.catalog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.catalog-card {
  background: #fff;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--color-border);
}

.catalog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
}

.catalog-card__img-wrap {
  height: 220px;
  overflow: hidden;
}

.catalog-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px 8px 0 0;
  transition: transform .5s cubic-bezier(.4, 0, .2, 1);
}

.catalog-card:hover .catalog-card__img {
  transform: scale(1.05);
}

.catalog-card__body {
  padding: 1.15rem 1.25rem 1.4rem;
}

.catalog-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: .35rem;
}

.catalog-card__desc {
  font-size: .88rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ================================================================
   4. SERVICE
   ================================================================ */
.service {
  padding: var(--section-py) 0;
  background: linear-gradient(135deg,
      var(--color-primary-dark) 0%,
      var(--color-primary) 60%,
      var(--color-primary-light) 100%);
  color: var(--color-text-light);
}

.service__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.service__desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, .82);
  max-width: 560px;
}

.service__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.service__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(6px);
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: var(--transition);
}

.service__item:hover {
  background: rgba(255, 255, 255, .15);
  transform: translateX(4px);
}

.service__item-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1;
}

.service__item strong {
  display: block;
  font-weight: 700;
  margin-bottom: .15rem;
  font-size: 1rem;
}

.service__item span {
  font-size: .88rem;
  color: rgba(255, 255, 255, .65);
}

/* ================================================================
   5. GALLERY — Infinite CSS Marquee
   ================================================================ */
.gallery {
  padding: var(--section-py) 0 2rem;
  background: var(--color-bg);
}

.marquee {
  overflow: hidden;
  width: 100%;
  padding: 1rem 0;
  cursor: grab;
}

.marquee__track {
  display: flex;
  gap: 1.25rem;
  width: max-content;
  animation: marquee-scroll 35s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__img {
  width: 250px;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
}

.marquee__img:hover {
  transform: scale(1.04);
  box-shadow: var(--shadow-lg);
}

@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

/* ================================================================
   6. PARTNERS
   ================================================================ */
.partners {
  padding: var(--section-py) 0;
  background: var(--color-bg-alt);
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.partners__item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.4rem 1rem;
  background: #fff;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: .02em;
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
}

.partners__item:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

/* ================================================================
   7. CONTACTS
   ================================================================ */
.contacts {
  padding: var(--section-py) 0;
  background: var(--color-bg);
}

.contacts__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.contacts__row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.contacts__row:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-accent-glow);
}

.contacts__icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  line-height: 1.4;
}

.contacts__row strong {
  display: block;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: .15rem;
  font-size: .95rem;
}

.contacts__row span,
.contacts__row small {
  font-size: .9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.contacts__link {
  color: var(--color-accent);
  font-weight: 600;
  transition: color var(--transition);
}

.contacts__link:hover {
  color: var(--color-accent-dark);
}

.contacts__map {
  min-height: 450px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.contacts__map-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 450px;
  gap: .5rem;
  color: var(--color-text-muted);
}

.contacts__map-placeholder svg {
  color: var(--color-primary-light);
  opacity: .4;
}

.contacts__map-placeholder span {
  font-weight: 600;
  font-size: 1.1rem;
}

.contacts__map-placeholder small {
  font-size: .8rem;
  opacity: .6;
}

/* ================================================================
   8. FOOTER
   ================================================================ */
.footer {
  background: #142a9a;
  color: rgba(255, 255, 255, .7);
  padding: 1.5rem 0;
}

.footer__inner {
  text-align: center;
  font-size: .85rem;
}

/* ================================================================
   RESPONSIVE — Tablet (≥ 640px)
   ================================================================ */
@media (min-width: 640px) {
  .catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .partners__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .marquee__img {
    width: 280px;
    height: 200px;
  }
}

/* ================================================================
   RESPONSIVE — Desktop (≥ 960px)
   ================================================================ */
@media (min-width: 960px) {
  :root {
    --section-py: 5.5rem;
    --container-px: 2rem;
  }

  /* Header — show nav */
  .header__inner {
    flex-wrap: nowrap;
    gap: 1rem;
  }

  .header__nav {
    display: flex;
  }

  /* Catalog — 3 columns, last row centered */
  .catalog__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Center the single card on the last row (7th item) */
  .catalog-card:last-child:nth-child(3n + 1) {
    grid-column: 2 / 3;
  }

  /* Service */
  .service__inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 3.5rem;
  }

  /* Partners — 4 columns */
  .partners__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Contacts — 2 columns */
  .contacts__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
  }

  /* Marquee */
  .marquee__img {
    width: 300px;
    height: 220px;
  }
}

/* ================================================================
   RESPONSIVE — Large Desktop (≥ 1200px)
   ================================================================ */
@media (min-width: 1200px) {
  .partners__grid {
    grid-template-columns: repeat(7, 1fr);
  }

  .catalog__grid {
    gap: 1.75rem;
  }
}

/* ── Accessibility ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

:focus-visible {
  outline: 3px solid var(--color-accent-glow);
  outline-offset: 2px;
}