/* ==========================================================================
   ing.dev Replication - Design System & Global Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-dark: #08090b;
  --bg-surface: #0f1117;
  --bg-surface-elevated: #161922;
  --bg-surface-hover: #1e2230;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-emerald: #10b981;
  --accent-purple: #8b5cf6;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.2);
  
  /* Fonts */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-sans);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Layout */
  --max-width: 1320px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-accent-gradient {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: 7rem;
    padding-bottom: 7rem;
  }
}

/* Navigation Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(8, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-color);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 2px;
}

.brand-logo span.dot {
  color: var(--accent-primary);
  display: inline-block;
  transform: translateY(-2px);
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  z-index: 101;
}

.mobile-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background-color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(255, 255, 255, 0.25);
}

.btn-outline {
  border: 1px solid var(--border-color-hover);
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.02);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

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

.btn-accent:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px var(--accent-glow);
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.badge-accent {
  background-color: var(--accent-glow);
  border-color: rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

/* Cards */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  border-color: var(--border-color-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Hero Section Optimized for Vertical Centering on Desktop */
.hero-section {
  padding-top: var(--header-height);
  padding-bottom: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.hero-glow {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.05) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 950px;
  width: 100%;
  margin-top: auto;
  margin-bottom: auto;
  padding-top: 2rem;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 4.25rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 780px;
  font-weight: 400;
  line-height: 1.5;
}

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

/* Centered Technologies Marquee Section */
.client-logos-section {
  width: 100%;
  margin-top: 2rem;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  border-top: 1px solid var(--border-color);
  overflow: hidden;
}

.client-logos-title {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  text-align: center;
}

.ticker-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  align-items: center;
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: 1rem;
  justify-content: center;
}

/* Testimonial Section & Carousel */
.testimonial-carousel {
  position: relative;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-surface-elevated) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3.5rem 3rem;
  margin: 5rem 0 0 0;
  width: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.testimonial-track {
  display: flex;
  transition: transform var(--transition-normal);
  width: 100%;
  box-sizing: border-box;
}

.testimonial-slide {
  width: 100%;
  min-width: 100%;
  max-width: 100%;
  flex: 0 0 100%;
  box-sizing: border-box;
  padding-right: 5rem;
}

.testimonial-quote {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  max-width: 100%;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--accent-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-info h4 {
  font-size: 1.05rem;
  margin-bottom: 0.15rem;
}

.author-info p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.carousel-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.carousel-btn:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Portfolio / Work Cards Grid */
.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .work-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.work-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.work-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-hover);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.work-card-image {
  aspect-ratio: 16 / 10;
  width: 100%;
  overflow: hidden;
  background-color: var(--bg-surface-elevated);
  position: relative;
}

.work-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.work-card-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.work-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.work-card-title {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.work-card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* Global Footer */
.site-footer {
  background-color: #040507;
  border-top: 1px solid var(--border-color);
  padding-top: 5rem;
  padding-bottom: 3rem;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 3fr;
  }
}

.footer-locations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.location-item h5 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.location-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Hero Section Grid Layout & Animated Logos */
.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-container {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-surface-elevated);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.7);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Full-Width Infinite Moving Logo Ticker Section */
.client-logos-section {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  margin-top: 4rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-dark);
  overflow: hidden;
}

.client-logos-title {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  text-align: center;
}

.ticker-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: 1rem;
}

/* Move Top Row to the Right */
.ticker-track.move-right {
  animation: scrollRight 35s linear infinite;
}

/* Move Bottom Row to the Left */
.ticker-track.move-left {
  animation: scrollLeft 35s linear infinite;
}

.ticker-track:hover {
  animation-play-state: paused;
}

@keyframes scrollRight {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0%);
  }
}

@keyframes scrollLeft {
  0% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(-50%);
  }
}

.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.25rem 2.5rem;
  min-width: 220px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.logo-item:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-2px);
}

.brand-svg-logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.logo-item:hover .brand-svg-logo {
  opacity: 1;
  transform: scale(1.1);
}

.logo-item span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: rgba(248, 250, 252, 0.8);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.logo-item:hover span {
  color: var(--text-primary);
}



/* Responsive Mobile Navigation Drawer & Component Layouts */
@media (max-width: 991px) {
  .mobile-nav-toggle {
    display: flex;
    position: relative;
    z-index: 1002;
  }
  
  .nav-menu {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background-color: #0b0f19 !important;
    background: #0b0f19 !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 3rem 2rem;
    gap: 1.75rem;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 1000 !important;
    overflow-y: auto;
    box-sizing: border-box;
  }
  
  .nav-menu.open {
    transform: translateX(0);
  }
  
  .nav-link {
    font-size: 1.5rem;
  }
}

/* Mobile Testimonial Responsiveness */
@media (max-width: 768px) {
  .testimonial-carousel {
    padding: 2rem 1.5rem 1.75rem 1.5rem;
    margin: 2.5rem 0 0 0;
    border-radius: var(--radius-md);
  }

  .testimonial-track {
    display: flex;
    width: 100%;
  }

  .testimonial-slide {
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
    padding-right: 2.5rem !important;
    box-sizing: border-box !important;
  }

  .testimonial-quote {
    font-size: 1.05rem;
    line-height: 1.55;
    margin-bottom: 2rem;
    word-break: break-word;
  }

  .testimonial-author {
    gap: 0.75rem;
  }

  .author-avatar {
    width: 42px;
    height: 42px;
    font-size: 0.95rem;
    flex-shrink: 0;
  }

  .author-info h4 {
    font-size: 0.95rem;
  }

  .author-info p {
    font-size: 0.8rem;
  }

  .carousel-nav {
    position: relative;
    top: auto;
    right: auto;
    justify-content: flex-end;
    margin-top: 1.5rem;
    gap: 0.5rem;
  }

  .carousel-btn {
    width: 36px;
    height: 36px;
  }
}