/* ========================================
   VOLTIC WEBSITE - MAIN STYLES
   ======================================== */

/* CSS Variables */
:root {
  --color-primary: #111926;
  --color-secondary: #1a2332;
  --color-accent: #00C896;
  --color-accent-dark: #00a87d;
  --color-text: #111926;
  --color-text-light: #555555;
  --color-text-muted: #888888;
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-bg-dark: #111926;
  --color-border: #e5e7eb;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  --max-width: 1200px;
  --header-height: 80px;

  --transition: 0.3s ease;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

ul, ol {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent);
  color: white;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  width: auto;
}

/* Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--color-accent);
  background-color: var(--color-bg-light);
}

.nav-link .arrow {
  font-size: 0.75rem;
  transition: var(--transition);
}

.nav-item:hover .nav-link .arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  padding: var(--spacing-xs);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: var(--spacing-sm);
  font-size: 0.9375rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.dropdown-link:hover {
  background-color: var(--color-bg-light);
  color: var(--color-accent);
}

.dropdown-link span {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header .btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
  background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: rgba(0, 200, 150, 0.1);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 100px;
  margin-bottom: var(--spacing-md);
}

.hero h1 {
  margin-bottom: var(--spacing-md);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 650px;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* ========================================
   TRUST SIGNALS
   ======================================== */
.trust-signals {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.trust-item {
  text-align: center;
  padding: var(--spacing-sm);
}

.trust-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.trust-item h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.trust-item p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ========================================
   SECTIONS - GENERAL
   ======================================== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-light {
  background-color: var(--color-bg-light);
}

.section-dark {
  background-color: var(--color-bg-dark);
  color: white;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: white;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.8);
}

.section-header {
  max-width: 700px;
  margin-bottom: var(--spacing-xl);
}

.section-header.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.125rem;
}

/* ========================================
   FEATURES GRID
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 200, 150, 0.1);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.feature-card p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin: 0;
}

/* ========================================
   TWO COLUMN LAYOUT
   ======================================== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.two-col-reverse {
  direction: rtl;
}

.two-col-reverse > * {
  direction: ltr;
}

.two-col-content h2 {
  margin-bottom: var(--spacing-md);
}

.two-col-content p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.two-col-content ul {
  margin-bottom: var(--spacing-lg);
}

.two-col-content li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.two-col-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.two-col-image {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

/* ========================================
   SOLUTIONS SECTION
   ======================================== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.solution-card {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.solution-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.solution-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 200, 150, 0.1);
  color: var(--color-accent);
  border-radius: var(--radius-md);
}

.solution-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.solution-card p {
  color: var(--color-text-light);
  font-size: 0.9375rem;
  margin: 0;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-primary);
  color: white;
  text-align: center;
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section .btn-primary {
  background-color: var(--color-accent);
}

.cta-section .btn-secondary {
  border-color: white;
  color: white;
}

.cta-section .btn-secondary:hover {
  background-color: white;
  color: var(--color-primary);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--color-bg-dark);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  margin-top: var(--spacing-md);
  max-width: 300px;
}

.footer-logo {
  height: 36px;
}

.footer h4 {
  color: white;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  margin: 0;
}

.footer-legal {
  display: flex;
  gap: var(--spacing-md);
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-legal a:hover {
  color: white;
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
  padding: calc(var(--header-height) + var(--spacing-2xl)) 0 var(--spacing-2xl);
  background-color: var(--color-bg-light);
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 700px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.breadcrumb a {
  color: var(--color-text-muted);
  transition: var(--transition);
}

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

.breadcrumb span {
  color: var(--color-text);
}

/* ========================================
   CONTACT FORM
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-form {
  background-color: var(--color-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-family);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-info h3 {
  margin-bottom: var(--spacing-md);
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

/* ========================================
   ACCORDION
   ======================================== */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-bg);
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  transition: var(--transition);
}

.accordion-header:hover {
  background-color: var(--color-bg-light);
}

.accordion-header .icon {
  font-size: 1.25rem;
  transition: var(--transition);
}

.accordion-item.active .accordion-header .icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
  max-height: 500px;
}

.accordion-body {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--color-text-light);
}

/* ========================================
   INTEGRATIONS
   ======================================== */
.integrations-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.integration-card {
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
}

.integration-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.integration-card h4 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

.integration-card p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}

.integration-logo {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-family);
}

.integration-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }

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

@media (max-width: 768px) {
  /* Header Mobile */
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg);
    flex-direction: column;
    padding: var(--spacing-lg);
    transform: translateX(-100%);
    transition: var(--transition);
    overflow-y: auto;
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: var(--spacing-sm);
    justify-content: space-between;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--spacing-md);
    display: none;
  }

  .nav-item.active .dropdown {
    display: block;
  }

  .header-cta {
    width: 100%;
    flex-direction: column;
    margin-top: var(--spacing-md);
  }

  .header-cta .btn {
    width: 100%;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Layout Mobile */
  .two-col {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .two-col-reverse {
    direction: ltr;
  }

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

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

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

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

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

@media (max-width: 480px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

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

/* ========================================
   DIAGRAMS & VISUALS
   ======================================== */
.diagram-container {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.diagram-container svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-container.dark {
  background-color: var(--color-bg-light);
}

/* Hero image with overlay */
.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.hero-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(17, 25, 38, 0.3) 0%, transparent 50%);
}

/* Feature image */
.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg-light);
}

.feature-image img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.feature-image:hover img {
  transform: scale(1.05);
}

/* Vendor logos grid */
.vendor-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
  padding: var(--spacing-lg) 0;
}

.vendor-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 120px;
  height: 60px;
  transition: var(--transition);
}

.vendor-logo:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.vendor-logo img {
  max-height: 30px;
  width: auto;
}

/* Full-width diagram */
.full-diagram {
  width: 100%;
  max-width: 900px;
  margin: var(--spacing-xl) auto;
}

/* ========================================
   ANIMATIONS
   ======================================== */
/* Fade in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for cards */
.stagger-in > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-in.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-in.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-in.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-in.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-in.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-in.visible > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-in.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Pulse animation for icons */
.pulse-icon {
  animation: pulseIcon 2s ease-in-out infinite;
}

@keyframes pulseIcon {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Glow effect */
.glow {
  box-shadow: 0 0 20px rgba(0, 200, 150, 0.3);
}

.glow-hover:hover {
  box-shadow: 0 0 30px rgba(0, 200, 150, 0.4);
}

/* Float animation */
.float {
  animation: floatAnimation 3s ease-in-out infinite;
}

@keyframes floatAnimation {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Energy flow line animation */
.energy-line {
  stroke-dasharray: 10 5;
  animation: energyFlow 1s linear infinite;
}

@keyframes energyFlow {
  to { stroke-dashoffset: -15; }
}

/* Stats counter animation */
.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

/* Interactive diagram wrapper */
.interactive-diagram {
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
}

.interactive-diagram:hover {
  border-color: var(--color-accent);
}

/* Diagram caption */
.diagram-caption {
  text-align: center;
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Photo with caption */
.photo-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.photo-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.photo-card figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: white;
  font-size: 0.875rem;
}

/* Logos display grid */
.logos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
}

.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  aspect-ratio: 16/9;
  transition: var(--transition);
}

.logo-item:hover {
  background-color: white;
  box-shadow: var(--shadow-md);
}

/* Large diagram section */
.diagram-section {
  padding: var(--spacing-2xl) 0;
}

.diagram-section .section-header {
  margin-bottom: var(--spacing-lg);
}

/* Responsive diagrams */
@media (max-width: 768px) {
  .full-diagram {
    padding: var(--spacing-sm);
  }

  .diagram-container {
    padding: var(--spacing-sm);
  }

  .hero-image img {
    height: 250px;
  }

  .feature-image img {
    height: 200px;
  }
}