:root {
  /* High-Tech Industrial Blue Palette */
  --primary-dark: #0F172A;
  --secondary-dark: #1E293B;
  --accent: #2563EB; /* Технологичный Cobalt Blue */
  --accent-hover: #1D4ED8;
  --accent-light: #EFF6FF;
  --accent-light-blue: #93C5FD;
  --bg-white: #FFFFFF;
  --bg-gray: #F8FAFC;
  --border-color: #E2E8F0;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  font-family: var(--font-family);
  color: #334155;
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

/* Background section alternating */
.section-white {
  background-color: var(--bg-white);
}
.section-gray {
  background-color: var(--bg-gray);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

/* Utilities */
.letter-spacing-1 {
  letter-spacing: 0.08em;
}
.max-w-700 {
  max-width: 700px;
}
.extra-small {
  font-size: 0.75rem;
}
.text-accent {
  color: var(--accent) !important;
}
.text-accent-light {
  color: var(--accent-light-blue) !important;
}
.bg-light-accent {
  background-color: var(--accent-light);
}

/* Topbar */
.top-bar {
  background-color: #F8FAFC;
  border-bottom: 1px solid var(--border-color);
}
.live-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #DCFCE7;
  color: #166534;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
}
.pulse-dot {
  width: 6px;
  height: 6px;
  background-color: #16A34A;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7);
  animation: pulsing 1.8s infinite;
}
@keyframes pulsing {
  0% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7); }
  70% { box-shadow: 0 0 0 6px rgba(22, 163, 74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

/* Branding */
.brand-badge {
  width: 40px;
  height: 40px;
  background-color: var(--primary-dark);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 1.3rem;
  transition: var(--transition-smooth);
}
.brand-badge.small {
  width: 30px;
  height: 30px;
  font-size: 1rem;
  background-color: rgba(255,255,255,0.1);
  color: #FFFFFF;
}
.brand-text {
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--primary-dark);
  line-height: 1;
}
.brand-subtext {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #64748B;
  margin-top: 2px;
}

/* Navbar */
.navbar .nav-link {
  color: #475569;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  transition: var(--transition-smooth);
}
.navbar .nav-link:hover {
  color: var(--accent);
  transform: translateY(-1px);
}
.dropdown-menu-custom {
  border-radius: 14px;
  padding: 10px;
}
.dropdown-menu-custom .dropdown-item {
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.9rem;
}
.dropdown-menu-custom .dropdown-item:hover {
  background-color: var(--accent-light);
  color: var(--accent);
}

/* Buttons */
.btn-accent {
  background-color: var(--accent);
  color: #FFFFFF;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 0.65rem 1.4rem;
  transition: var(--transition-smooth);
}
.btn-accent:hover {
  background-color: var(--accent-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
.btn-accent:hover .transition-arrow {
  transform: translateX(4px);
}
.transition-arrow {
  display: inline-block;
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero-title {
  font-size: clamp(2.2rem, 3.8vw, 3.4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.6;
}
.inline-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-light);
  border: 1px solid #DBEAFE;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}
.inline-badge-secondary {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #F1F5F9;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}
.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}

.tech-graphic-wrapper {
  position: relative;
  display: inline-block;
  width: 100%;
}
.main-hero-img {
  max-height: 480px;
  width: 100%;
  object-fit: cover;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.tech-tag {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 14px;
  padding: 10px 16px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  text-align: left;
}
.tech-tag-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.floating-tag-1 {
  bottom: 24px;
  left: 20px;
  animation: floatSlow 4s ease-in-out infinite alternate;
}
.floating-tag-2 {
  top: 24px;
  right: 20px;
  animation: floatSlow 4s ease-in-out 2s infinite alternate;
}
@keyframes floatSlow {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

/* Metric Cards */
.spec-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  transition: var(--transition-smooth);
}
.spec-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.06);
}
.spec-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.02em;
}
.spec-unit {
  font-size: 1rem;
  font-weight: 500;
  color: #64748B;
}
.spec-label {
  font-size: 0.85rem;
  color: #64748B;
  margin-top: 4px;
}

/* Configurator Box */
.configurator-box {
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.04);
}
.config-input {
  border-radius: 10px;
  padding: 10px 14px;
  border-color: var(--border-color);
}
.config-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Section Headings */
.section-subtitle {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}
.section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--primary-dark);
}

/* Filter Tabs */
.filter-btn {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #475569;
  transition: var(--transition-smooth);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Product Cards */
.product-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  transition: var(--transition-smooth);
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: #93C5FD;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
}
.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  z-index: 2;
}
.product-badge.stock {
  background: #DCFCE7;
  color: #166534;
}
.product-badge.order {
  background: #FEF3C7;
  color: #92400E;
}
.product-thumb {
  height: 230px;
  background-color: #F1F5F9;
  overflow: hidden;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-thumb img {
  transform: scale(1.06);
}
.product-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.product-code {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.product-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
}
.product-spec-mini {
  list-style: none;
  padding: 0;
  margin: 0 0 16px 0;
  font-size: 0.82rem;
  flex-grow: 1;
}
.product-spec-mini li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed var(--border-color);
  padding: 4px 0;
}
.btn-product-action {
  background-color: #F8FAFC;
  color: var(--primary-dark);
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  width: 100%;
  padding: 9px 12px;
  transition: var(--transition-smooth);
}
.btn-product-action:hover {
  background-color: var(--accent);
  color: #FFFFFF;
  border-color: var(--accent);
}

/* Comparison Cards */
.comparison-card {
  border-radius: 20px;
  padding: 36px;
  border: 1px solid var(--border-color);
}
.comparison-card.bad {
  background: #FFF1F2;
  border-color: #FECDD3;
}
.comparison-card.good {
  background: #FFFFFF;
  border-color: var(--accent);
  box-shadow: 0 15px 35px rgba(37, 99, 235, 0.08);
}
.comp-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.comp-badge.bad {
  background: #FFE4E6;
  color: #E11D48;
}
.comp-badge.good {
  background: var(--accent-light);
  color: var(--accent);
}
.comp-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0 0;
}
.comp-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.92rem;
}

/* Bento Services */
.bento-service-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  transition: var(--transition-smooth);
}
.bento-service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 15px 30px rgba(37, 99, 235, 0.06);
}
.service-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  transition: var(--transition-smooth);
}
.bento-service-card:hover .service-icon {
  background: var(--accent);
  color: #FFFFFF;
}

/* Drag & Drop RFQ Form */
.border-dashed {
  border: 2px dashed #CBD5E1;
  cursor: pointer;
  background: #F8FAFC;
  transition: var(--transition-smooth);
}
.border-dashed:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}
.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* ========================================================================= */
/* PREMIUM MODAL STYLING (Двухколоночное окно конверсии)                     */
/* ========================================================================= */
.shadow-2xl {
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.3);
}
.modal-trust-sidebar {
  background: linear-gradient(145deg, #0F172A 0%, #1E293B 100%);
}
.bg-white-10 {
  background-color: rgba(255, 255, 255, 0.08);
}
.border-white-10 {
  border-color: rgba(255, 255, 255, 0.15) !important;
}
.engineer-avatar {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
}

/* Footer */
.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 18px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}
.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}
.social-btn {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: var(--transition-smooth);
}
.social-btn:hover {
  background: var(--accent);
  color: #FFFFFF;
}
/* Иконка мессенджера Max в соц. кнопках */
.max-icon {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
}