/* ============================================
   BIO-DIGITAL ERGONOMIC INTERFACE STYLES
   Futuristic Biometric Design System
   ============================================ */

:root {
  /* Color Palette - Neural Interface */
  --color-neural-grey: #1A1A1D;
  --color-cyan-pulse: #00E5FF;
  --color-ultraviolet: #6A0DAD;
  --color-polar-white: #F8F9FA;
  --color-dark-bg: #0F0F12;
  --color-card-bg: rgba(26, 26, 29, 0.8);
  --color-overlay: rgba(15, 15, 18, 0.95);
  
  /* Typography */
  --font-header: 'Rajdhani', sans-serif;
  --font-body: 'Michroma', sans-serif;
  --font-size-base: 1rem;
  --font-size-h1: 3.5rem;
  --font-size-h2: 2.5rem;
  --font-size-h3: 1.75rem;
  --font-size-h4: 1.25rem;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 5rem;
  
  /* Layout */
  --container-max: 1400px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  
  /* Effects */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.3);
  --shadow-ultra: 0 0 30px rgba(106, 13, 173, 0.4);
  --blur-glass: blur(10px);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-polar-white);
  background-color: var(--color-dark-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(0.9rem, 5vw, var(--font-size-h1));
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--color-cyan-pulse), var(--color-ultraviolet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(1.2rem, 4vw, var(--font-size-h2));
  color: var(--color-cyan-pulse);
}

h3 {
  font-size: clamp(1.1rem, 3vw, var(--font-size-h3));
  color: var(--color-polar-white);
}

p {
  margin-bottom: var(--space-md);
  color: rgba(248, 249, 250, 0.85);
}

a {
  color: var(--color-cyan-pulse);
  text-decoration: none;
  transition: all var(--transition-base);
}

a:hover {
  color: var(--color-ultraviolet);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.section-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) 0;
  background: rgba(26, 26, 29, 0.6);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid rgba(0, 229, 255, 0.2);
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.brand-text {
  font-family: var(--font-header);
  font-size: clamp(1rem, 2vw, 1.45rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-cyan-pulse);
  text-shadow: 0 0 15px rgba(0, 229, 255, 0.5);
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
}

.nav-menu li a {
  font-size: 0.65rem;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
}

.nav-menu li a:hover {
  border-color: var(--color-cyan-pulse);
  background: rgba(0, 229, 255, 0.1);
}

/* Burger Menu */
.burger-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-cyan-pulse);
  border-radius: var(--border-radius);
  width: 44px;
  height: 44px;
  cursor: pointer;
  position: relative;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-base);
  order: 999;
  z-index: 100001;
}

.burger-toggle:hover {
  background: rgba(0, 229, 255, 0.1);
  box-shadow: var(--shadow-glow);
}

.burger-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-cyan-pulse);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.burger-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.burger-toggle.active span:nth-child(2) {
  opacity: 0;
}

.burger-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-nav {
  display: block;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--color-overlay);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-left: 1px solid rgba(0, 229, 255, 0.3);
  z-index: 9999;
  padding: var(--space-xl) var(--space-lg);
  transition: right var(--transition-base);
  overflow-y: auto;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-list {
  list-style: none;
  margin-top: var(--space-xl);
}

.mobile-nav-list li {
  margin-bottom: var(--space-md);
}

.mobile-nav-list a {
  display: block;
  padding: var(--space-md);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--border-radius);
  text-transform: uppercase;
  font-size: 0.8rem;
  transition: all var(--transition-base);
}

.mobile-nav-list a:hover {
  border-color: var(--color-cyan-pulse);
  background: rgba(0, 229, 255, 0.1);
  transform: translateX(5px);
}

.mobile-nav-overlay {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  pointer-events: none;
}

.mobile-nav-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ============================================
   HERO BANNERS (FULL-WIDTH)
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(26, 26, 29, 0.85), rgba(106, 13, 173, 0.6));
  z-index: 1;
}

.hero-banner img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: rgba(248, 249, 250, 0.9);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.hero-text {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: rgba(248, 249, 250, 0.8);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

/* ============================================
   BUTTONS & CTAs
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-header);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 2px solid var(--color-cyan-pulse);
  border-radius: var(--border-radius);
  background: transparent;
  color: var(--color-cyan-pulse);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  margin-top: 10px;
}

.btn:hover {
  background: var(--color-cyan-pulse);
  color: var(--color-neural-grey);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  border-color: var(--color-ultraviolet);
  color: var(--color-ultraviolet);
}

.btn-secondary:hover {
  background: var(--color-ultraviolet);
  color: var(--color-polar-white);
  box-shadow: var(--shadow-ultra);
}

/* ============================================
   CARDS & GRIDS
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.card {
  background: var(--color-card-bg);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
}

.card:hover {
  border-color: var(--color-cyan-pulse);
  box-shadow: var(--shadow-glow);
  transform: translateY(-5px);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: var(--font-size-h4);
  margin-bottom: var(--space-sm);
  color: var(--color-cyan-pulse);
}

.card-text {
  font-size: 0.95rem;
  color: rgba(248, 249, 250, 0.75);
  line-height: 1.6;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-section {
  padding: var(--space-xxl) 0;
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-card-bg);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-family: var(--font-header);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-cyan-pulse);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(15, 15, 18, 0.6);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--border-radius);
  color: var(--color-polar-white);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-cyan-pulse);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.checkbox-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-cyan-pulse);
}

.checkbox-label {
  font-size: 0.9rem;
  color: rgba(248, 249, 250, 0.8);
  line-height: 1.5;
}

.checkbox-label a {
  text-decoration: underline;
}

/* ============================================
   MAP CONTAINER
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 229, 255, 0.2);
  margin-top: var(--space-xl);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-neural-grey);
  border-top: 1px solid rgba(0, 229, 255, 0.2);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-lg);
  list-style: none;
}

.footer-nav a {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
}

.footer-nav a:hover {
  border-color: var(--color-cyan-pulse);
}

.footer-info {
  text-align: center;
  font-size: 0.85rem;
  color: rgba(248, 249, 250, 0.6);
  margin-top: var(--space-md);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.highlight {
  color: var(--color-cyan-pulse);
}

.stress-zone {
  color: var(--color-ultraviolet);
}

/* Layout Grids */
.two-column-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
}

.content-image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
}

/* Универсальный класс для двухколоночных grid в секциях */
.section-content > div[style*="grid-template-columns: 1fr 1fr"] {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1023px) {
  .nav-menu {
    display: none;
  }
  
  .burger-toggle {
    display: flex;
  }
  
  .hero-banner {
    min-height: 60vh;
  }
  
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
  }
  
  /* Адаптация grid для планшетов - уже в столбик */
  .section-content > div[style*="grid-template-columns: 1fr 1fr"],
  .two-column-grid,
  .contact-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xxl: 3rem;
    --space-xl: 2rem;
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .form-container {
    padding: var(--space-lg);
  }
  
  .footer-nav {
    flex-direction: column;
    align-items: center;
  }
  
  .two-column-grid {
    grid-template-columns: 1fr;
  }
  
  /* Универсальное правило для всех grid контейнеров с inline стилями */
  .section-content > div[style*="grid-template-columns"],
  .section-content > div[style*="grid-template-columns: 1fr 1fr"],
  .contact-section > .section-content > div[style*="grid-template-columns"],
  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }
  
  /* Адаптация для продуктовой сетки */
  .products-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 var(--space-sm);
  }
  
  .brand-text {
    font-size: 1rem;
  }
  
  .hero-content {
    padding: var(--space-md);
  }
  
  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
  }
}

@media (max-width: 320px) {
  .container,
  .section-content {
    padding: 0 var(--space-sm);
  }
  
  .card {
    padding: var(--space-md);
  }
}

/* ============================================
   SPECIAL EFFECTS & ANIMATIONS
   ============================================ */

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 229, 255, 0.6);
  }
}

.pulse-effect {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* Privacy Policy Popup */
.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-cyan-pulse);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  z-index: 10000;
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  box-shadow: var(--shadow-glow);
}

.privacy-popup.active {
  display: block;
}

.privacy-popup p {
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

.privacy-popup-buttons {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.privacy-popup-buttons button {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
}

/* 404 Page Styles */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xxl) var(--space-md);
}

.error-code {
  font-size: clamp(4rem, 10vw, 8rem);
  font-family: var(--font-header);
  color: var(--color-cyan-pulse);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.product-card {
  background: var(--color-card-bg);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.product-card:hover {
  border-color: var(--color-cyan-pulse);
  box-shadow: var(--shadow-glow);
}

.product-title {
  font-size: var(--font-size-h3);
  color: var(--color-cyan-pulse);
  margin-bottom: var(--space-md);
}

.product-price {
  font-size: 1.5rem;
  font-family: var(--font-header);
  color: var(--color-ultraviolet);
  margin-top: var(--space-md);
}

/* Thank You Page */
.thank-you-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-xxl) var(--space-md);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.thank-you-icon {
  font-size: 4rem;
  color: var(--color-cyan-pulse);
  margin-bottom: var(--space-lg);
}

/* Date Display */
.date {
  font-size: 0.9rem;
  color: rgba(248, 249, 250, 0.6);
  font-style: italic;
  margin-top: var(--space-md);
}