/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors */
  --primary-blue: #3b82f6;
  --primary-cyan: #06b6d4;
  --dark-bg: #000000;
  --dark-secondary: #111827;
  --dark-tertiary: #1f2937;
  --dark-quaternary: #374151;
  --light-bg: #ffffff;
  --light-secondary: #f8fafc;
  --light-tertiary: #e2e8f0;
  --light-quaternary: #cbd5e1;
  --text-primary-dark: #ffffff;
  --text-secondary-dark: #d1d5db;
  --text-tertiary-dark: #9ca3af;
  --text-primary-light: #111827;
  --text-secondary-light: #374151;
  --text-tertiary-light: #6b7280;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Spacing */
  --container-max-width: 1200px;
  --section-padding: 5rem 0;
  --border-radius: 0.75rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
}

/* Dark theme (default) */
html.dark {
  --bg-primary: var(--dark-bg);
  --bg-secondary: var(--dark-secondary);
  --bg-tertiary: var(--dark-tertiary);
  --bg-quaternary: var(--dark-quaternary);
  --text-primary: var(--text-primary-dark);
  --text-secondary: var(--text-secondary-dark);
  --text-tertiary: var(--text-tertiary-dark);
  --border-color: rgba(59, 130, 246, 0.2);
  --card-bg: rgba(31, 41, 55, 0.5);
}

/* Light theme */
html.light {
  --bg-primary: var(--light-bg);
  --bg-secondary: var(--light-secondary);
  --bg-tertiary: var(--light-tertiary);
  --bg-quaternary: var(--light-quaternary);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --text-tertiary: var(--text-tertiary-light);
  --border-color: rgba(59, 130, 246, 0.1);
  --card-bg: rgba(255, 255, 255, 0.8);
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

html {
  scroll-behavior: smooth;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Background Elements */
.bg-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.bg-blob-1 {
  width: 400px;
  height: 400px;
  background: var(--primary-blue);
  top: 25%;
  left: 25%;
  animation-delay: 0s;
}

.bg-blob-2 {
  width: 400px;
  height: 400px;
  background: var(--primary-cyan);
  bottom: 25%;
  right: 25%;
  animation-delay: 2s;
}

.bg-blob-3 {
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--primary-blue) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: 4s;
}

.bg-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(59, 130, 246, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition-normal);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-brand a {
  color: inherit;
  text-decoration: none;
}

.nav-logo {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.75rem;
}

.nav-logo i {
  color: black;
  width: 1rem;
  height: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  position: relative;
  transition: var(--transition-normal);
  padding: 0.5rem 0;
}

.nav-menu a:hover {
  color: var(--primary-cyan);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-cyan);
  transition: var(--transition-normal);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-ghost:hover {
  color: var(--primary-cyan);
  background: rgba(59, 130, 246, 0.1);
}

.btn-primary {
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-outline {
  background: transparent;
  color: var(--primary-cyan);
  border: 2px solid var(--primary-cyan);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(10px);
  text-decoration: none;
}

.btn-outline:hover {
  background: var(--primary-cyan);
  color: black;
  transform: translateY(-2px);
}

.btn-outline-sm {
  background: transparent;
  color: var(--primary-cyan);
  border: 2px solid var(--primary-cyan);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  backdrop-filter: blur(10px);
}

.btn-outline-sm:hover {
  background: var(--primary-cyan);
  color: black;
  transform: translateY(-1px);
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
}

.theme-toggle .sun-icon {
  display: block;
}

.theme-toggle .moon-icon {
  display: none;
}

html.light .theme-toggle .sun-icon {
  display: none;
}

html.light .theme-toggle .moon-icon {
  display: block;
}

/* Hero Section */
.hero {
  padding: 8rem 0 5rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  margin-bottom: 2rem;
  color: var(--primary-cyan);
  font-size: 0.875rem;
  font-weight: 500;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  line-height: 1.1;
}

.gradient-text {
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.7;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-cyan);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.hero-image {
  margin-top: 4rem;
}

.product-showcase {
  position: relative;
  display: inline-block;
}


@keyframes rotate3d {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }
  100% {
    transform: rotateX(360deg) rotateY(360deg);
  }
}

.magnetic-effect {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border: 2px dashed var(--primary-cyan);
  border-radius: 50%;
  opacity: 0.3;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.3;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 0.1;
  }
}

/* Sections */
.section {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

.section-dark {
  background: rgba(0, 0, 0, 0.2);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: clamp(2.5rem, 6vw, 3rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.section-divider {
  width: 6rem;
  height: 4px;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  margin: 0 auto 2rem;
  border-radius: 2px;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-footer {
  text-align: center;
  margin-top: 3rem;
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

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

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-5px);
}

.feature-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

.feature-icon i {
  color: white;
  width: 2rem;
  height: 2rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Blocks Section */
.block-categories {
  max-width: 1000px;
  margin: 0 auto;
}

.category-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border: 2px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  cursor: pointer;
  transition: var(--transition-normal);
  font-weight: 500;
}

.tab-btn.active,
.tab-btn:hover {
  border-color: var(--primary-cyan);
  color: var(--primary-cyan);
  background: rgba(6, 182, 212, 0.1);
}

.blocks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.block-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.block-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-5px);
}

.block-image {
  padding: 2rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.1);
}

.block-3d {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  position: relative;
  transform-style: preserve-3d;
  animation: blockRotate 6s linear infinite;
}


@keyframes blockRotate {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }
  100% {
    transform: rotateX(360deg) rotateY(360deg);
  }
}

.block-info {
  padding: 2rem;
}

.block-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.block-info p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.block-specs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.spec {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-cyan);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-5px);
}

.pricing-card.featured {
  border-color: var(--primary-cyan);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.currency {
  font-size: 1.5rem;
  color: var(--text-secondary);
}

.amount {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-cyan);
}

.pricing-header p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.pricing-features {
  text-align: left;
  margin-bottom: 2rem;
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.feature i {
  color: var(--success);
  width: 1rem;
  height: 1rem;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

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

.stat-item .stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-cyan);
  line-height: 1;
}

.stat-item .stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
}

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

.cad-showcase {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.cad-viewer {
  position: relative;
}

.cad-model img {
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.cad-controls {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.cad-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.cad-btn.active,
.cad-btn:hover {
  border-color: var(--primary-cyan);
  color: var(--primary-cyan);
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition-normal);
}

.contact-item:hover {
  transform: translateX(5px);
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.contact-item:hover .contact-icon {
  transform: scale(1.1);
}

.contact-icon i {
  color: white;
  width: 1.5rem;
  height: 1.5rem;
}

.contact-details h4 {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact-details p {
  color: var(--text-tertiary);
}

.sales-channels h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tag {
  background: rgba(59, 130, 246, 0.2);
  color: var(--primary-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition-normal);
}

.tag:hover {
  background: rgba(6, 182, 212, 0.3);
}

/* Contact Form */
.contact-form-container .card {
  padding: 2rem;
}

.contact-form-container h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(31, 41, 55, 0.5);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 0.5rem;
  padding: 0.75rem;
  color: var(--text-primary);
  font-family: inherit;
  transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

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

/* Block Detail Pages */
.block-hero {
  padding: 8rem 0 5rem;
  position: relative;
  z-index: 1;
}

.block-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.block-visual {
  text-align: center;
  position: relative;
}

.block-3d-large {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  position: relative;
  transform-style: preserve-3d;
  animation: blockRotate 8s linear infinite;
}

.block-3d-large .block-face {
  position: absolute;
  width: 200px;
  height: 200px;
  background: var(--card-bg);
  border: 3px solid var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-cyan);
  backdrop-filter: blur(10px);
}

.block-3d-large .block-top {
  transform: rotateX(90deg) translateZ(100px);
}

.block-3d-large .block-front {
  transform: translateZ(100px);
}

.block-3d-large .block-right {
  transform: rotateY(90deg) translateZ(100px);
  font-size: 1.5rem;
}

.block-3d-large .block-left {
  transform: rotateY(-90deg) translateZ(100px);
  font-size: 1.5rem;
}

.block-3d-large .block-back {
  transform: rotateY(180deg) translateZ(100px);
  font-size: 1.5rem;
}

.block-3d-large .block-bottom {
  transform: rotateX(-90deg) translateZ(100px);
  font-size: 1rem;
}

.magnetic-indicators {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 250px;
  height: 250px;
}

.magnetic-point {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--primary-cyan);
  border-radius: 50%;
  animation: magneticPulse 2s ease-in-out infinite;
}

.magnetic-point.top {
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.magnetic-point.bottom {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.magnetic-point.left {
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.magnetic-point.right {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

@keyframes magneticPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

.block-category {
  color: var(--primary-cyan);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.block-info h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.block-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.block-specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.spec-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  backdrop-filter: blur(10px);
}

.spec-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 0.25rem;
}

.spec-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.block-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Block Details Tabs */
.block-details {
  padding: 3rem 0;
  position: relative;
  z-index: 1;
}

.details-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.content-text h3 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.content-text h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
}

.content-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  margin: 1.5rem 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.feature-list i {
  color: var(--success);
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
}

.schematic-comparison {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.schematic-side,
.block-side {
  text-align: center;
  margin-bottom: 2rem;
}

.schematic-side h4,
.block-side h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.schematic-symbol {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.mini-block {
  display: inline-block;
  position: relative;
}

.mini-block-face {
  width: 60px;
  height: 60px;
  background: var(--card-bg);
  border: 2px solid var(--primary-cyan);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-cyan);
  margin-bottom: 0.5rem;
}

.mini-block-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Specifications Table */
.specs-table {
  max-width: 800px;
  margin: 0 auto;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.spec-table th,
.spec-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.spec-table th {
  background: rgba(59, 130, 246, 0.1);
  color: var(--text-primary);
  font-weight: 600;
}

.spec-table td {
  color: var(--text-secondary);
}

.spec-table tr:last-child td {
  border-bottom: none;
}

/* Applications Grid */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.application-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.application-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-5px);
}

.app-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.app-icon i {
  color: white;
  width: 1.5rem;
  height: 1.5rem;
}

.application-card h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.application-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.circuit-example {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0.5rem;
  padding: 0.75rem;
}

.formula {
  font-family: "Courier New", monospace;
  color: var(--primary-cyan);
  font-weight: 600;
}

/* Learning Content */
.learning-content {
  max-width: 800px;
  margin: 0 auto;
}

.learning-path {
  margin: 2rem 0;
}

.learning-step {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.step-number {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.step-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.step-content ul {
  list-style: none;
  padding-left: 0;
}

.step-content li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.step-content li::before {
  content: "•";
  color: var(--primary-cyan);
  position: absolute;
  left: 0;
  font-weight: 700;
}

.exercises {
  margin-top: 3rem;
}

.exercises h4 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.exercise-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.exercise {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.exercise h5 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.exercise p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Related Blocks */
.related-blocks {
  padding: 3rem 0;
  background: rgba(0, 0, 0, 0.1);
}

.related-blocks h3 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.related-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.related-card:hover {
  border-color: var(--primary-cyan);
  transform: translateY(-5px);
}

.related-image {
  margin-bottom: 1rem;
}

.mini-block-3d {
  width: 60px;
  height: 60px;
  margin: 0 auto;
  position: relative;
  transform-style: preserve-3d;
  animation: blockRotate 4s linear infinite;
}

.mini-block-3d .block-face {
  position: absolute;
  width: 60px;
  height: 60px;
  background: var(--card-bg);
  border: 2px solid var(--primary-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-cyan);
  transform: translateZ(30px);
}

.related-card h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.related-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.5);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.footer-brand {
  display: flex;
  align-items: center;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-section a {
  display: block;
  color: var(--text-tertiary);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: var(--transition-normal);
}

.footer-section a:hover {
  color: var(--primary-cyan);
}

.footer-bottom {
  grid-column: 1 / -1;
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  margin-top: 2rem;
}

.footer-bottom p {
  color: var(--text-tertiary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero {
    padding: 6rem 0 3rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cube-stack {
    flex-direction: column;
    align-items: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .category-tabs {
    flex-direction: column;
  }

  .blocks-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-stats {
    justify-content: center;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  /* Block Detail Pages */
  .block-hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

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

  .block-actions {
    justify-content: center;
  }

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

  .applications-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .learning-step {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.5rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .card {
    padding: 1.5rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .block-card .block-info {
    padding: 1.5rem;
  }

  .pricing-card {
    padding: 1.5rem;
  }

  .contact-form-container .card {
    padding: 1.5rem;
  }

  .block-info h1 {
    font-size: 2rem;
  }

  .block-3d-large {
    width: 150px;
    height: 150px;
  }

  .block-3d-large .block-face {
    width: 150px;
    height: 150px;
    font-size: 2rem;
  }

  .magnetic-indicators {
    width: 200px;
    height: 200px;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(45deg, var(--primary-blue), var(--primary-cyan));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(45deg, #2563eb, #0891b2);
}

/* Selection */
::selection {
  background: rgba(6, 182, 212, 0.3);
  color: var(--text-primary);
}

/* Focus styles for accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary-cyan);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .nav,
  .bg-elements {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }
}