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

:root {
  --color-bg:       #0a0e17;
  --color-surface:  #111827;
  --color-surface2: #1a2235;
  --color-border:   #1e2a3a;
  --color-text:     #c9d1d9;
  --color-heading:  #f0f4f8;
  --color-accent:   #3b82f6;
  --color-accent2:  #60a5fa;
  --color-muted:    #6b7b8f;
  --color-footer:   #070a10;
  --font-body:      'Inter', system-ui, -apple-system, sans-serif;
  --max-width:      1100px;
  --radius:         12px;
  --radius-sm:      8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent2); text-decoration: none; transition: color .2s; }
a:hover { color: #93c5fd; }

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

/* ── Reveal animation ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  background: rgba(17, 24, 39, .85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: .3px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  gap: 6px;
  flex: 1;
}

.nav-link {
  color: var(--color-muted);
  font-size: .875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--color-heading); background: rgba(255,255,255,.05); }

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switcher { display: flex; gap: 6px; }

.lang-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .8rem;
  font-weight: 500;
  font-family: inherit;
  transition: all .2s;
}
.lang-btn:hover,
.lang-btn.active {
  color: var(--color-heading);
  border-color: var(--color-accent);
  background: rgba(59, 130, 246, .1);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-heading);
  border-radius: 2px;
  transition: .3s;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(96,165,250,.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 96px 24px 80px;
  position: relative;
  z-index: 1;
}

.hero-heading {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-heading);
  line-height: 1.15;
  max-width: 720px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: background .2s, transform .15s;
}
.hero-cta:hover { background: #2563eb; color: #fff; transform: translateY(-1px); }

/* ── Stats ────────────────────────────────────────────────── */
.stats-section {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {}

.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-accent2);
  line-height: 1.1;
}

.stat-label {
  font-size: .85rem;
  color: var(--color-muted);
  margin-top: 6px;
  font-weight: 500;
}

/* ── Main content ─────────────────────────────────────────── */
.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px 80px;
  flex: 1;
}

/* ── Section title ────────────────────────────────────────── */
.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 32px;
  position: relative;
  padding-bottom: 12px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ── About ────────────────────────────────────────────────── */
.about-section { padding-bottom: 64px; }
.about-text p { margin-bottom: 18px; font-size: 1.02rem; }

/* ── Products ─────────────────────────────────────────────── */
.products-section { padding: 64px 0; border-top: 1px solid var(--color-border); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color .25s, transform .2s;
}
.product-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.product-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(59, 130, 246, .1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent2);
}

.product-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
}

.product-desc {
  font-size: .92rem;
  color: var(--color-muted);
  line-height: 1.65;
}

/* ── Advantages ───────────────────────────────────────────── */
.advantages-section { padding: 64px 0; border-top: 1px solid var(--color-border); }

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

.advantage-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .25s;
}
.advantage-card:hover { border-color: var(--color-accent); }

.advantage-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(59, 130, 246, .1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent2);
}

.advantage-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.advantage-desc {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ── Gallery ──────────────────────────────────────────────── */
.gallery-section { padding: 64px 0; border-top: 1px solid var(--color-border); }

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.gallery-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  aspect-ratio: 16 / 10;
  background: var(--color-surface);
}
.gallery-card img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 18px;
  background: linear-gradient(transparent, rgba(0,0,0,.8));
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
}

/* ── News ─────────────────────────────────────────────────── */
.news-section { padding: 64px 0; border-top: 1px solid var(--color-border); }

.news-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.news-list li {
  padding: 14px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color .2s;
}
.news-list li:hover { border-color: var(--color-accent); }
.news-list a { display: block; font-size: .93rem; }

/* ── Contact ──────────────────────────────────────────────── */
.contact-section { padding: 64px 0; border-top: 1px solid var(--color-border); }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1rem;
  color: var(--color-text);
}
.contact-item svg { color: var(--color-accent2); flex-shrink: 0; }
.contact-legal { color: var(--color-muted); font-size: .9rem; }

.footer-legal { font-size: .82rem; color: var(--color-muted); opacity: .7; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--color-heading);
  font-family: inherit;
  font-size: .93rem;
  transition: border-color .2s;
  outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--color-accent); }

.contact-form textarea { resize: vertical; min-height: 100px; }

.form-submit {
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 28px;
  font-weight: 600;
  font-size: .95rem;
  font-family: inherit;
  cursor: pointer;
  transition: background .2s;
  align-self: flex-start;
}
.form-submit:hover { background: #2563eb; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--color-footer);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .9rem;
  color: var(--color-muted);
}

.footer-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-nav a {
  color: var(--color-muted);
  font-size: .9rem;
  transition: color .2s;
}
.footer-nav a:hover { color: var(--color-accent2); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: .82rem;
  color: var(--color-muted);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .products-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 20px; }

  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    gap: 4px;
  }

  .mobile-menu-btn { display: flex; }

  .header-inner { flex-wrap: wrap; }

  .hero-inner { padding: 64px 24px 56px; }
  .hero-heading { font-size: 1.8rem; }
}