/**
 * Essa Technologies - Comprehensive Main Stylesheet
 * Complete redesign with cutting-edge modern aesthetics
 * Version: 2.0
 */

/* ==========================================
   CUSTOM CURSOR
   ========================================== */

.cursor,
.cursor-follower {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transition: transform 0.15s ease-out, opacity 0.15s ease-out;
}

.cursor {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  top: -4px;
  left: -4px;
  mix-blend-mode: difference;
}

.cursor-follower {
  width: 32px;
  height: 32px;
  border: 2px solid var(--color-primary);
  top: -16px;
  left: -16px;
  opacity: 0.5;
}

@media (max-width: 1024px) {
  .cursor,
  .cursor-follower {
    display: none;
  }
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  gap: var(--space-8);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-primary);
  text-decoration: none;
  color: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: translateY(-2px);
}

.logo-icon {
  font-size: 1.5em;
}

.logo-text {
  letter-spacing: var(--letter-spacing-tight);
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-2) 0;
}

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

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

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

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-surface-2);
  border: none;
}

.theme-toggle:hover {
  background: var(--color-surface-3);
  transform: scale(1.1) rotate(15deg);
}

.theme-icon {
  font-size: 1.2rem;
  transition: all var(--transition-base);
}

[data-theme="dark"] .theme-icon.sun {
  display: none;
}

[data-theme="dark"] .theme-icon.moon {
  display: inline;
}

[data-theme="light"] .theme-icon.sun {
  display: inline;
}

[data-theme="light"] .theme-icon.moon {
  display: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 28px;
  height: 28px;
  justify-content: center;
  align-items: center;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
  display: block;
}

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

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

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

@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .menu-toggle {
    display: flex;
  }
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  border: none;
  font-family: inherit;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: inherit;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-primary);
}

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

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-md);
}

.btn-magnetic {
  will-change: transform;
}

.btn-icon {
  font-size: 1.2em;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

.btn-text {
  position: relative;
  z-index: 1;
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--gradient-mesh);
  opacity: 0.4;
}

.gradient-mesh {
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  animation: mesh-shift 20s ease infinite;
}

@keyframes mesh-shift {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    filter: hue-rotate(0deg);
  }
  25% {
    transform: translate(5%, -5%) scale(1.05);
    filter: hue-rotate(45deg);
  }
  50% {
    transform: translate(-5%, 5%) scale(1.1);
    filter: hue-rotate(90deg);
  }
  75% {
    transform: translate(5%, 5%) scale(1.05);
    filter: hue-rotate(45deg);
  }
}

#particles-canvas {
  position: absolute;
  inset: 0;
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-16) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  animation: float 3s ease-in-out infinite;
}

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

.badge-pulse {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 var(--color-success); }
  50% { opacity: 0.5; transform: scale(1.2); box-shadow: 0 0 0 10px transparent; }
}

.hero-title {
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.typewriter {
  display: inline-block;
  min-width: 300px;
  border-right: 3px solid var(--color-primary);
  animation: blink 0.7s step-end infinite;
}

@keyframes blink {
  50% { border-color: transparent; }
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--line-height-relaxed);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-8);
  max-width: 700px;
  margin: 0 auto;
}

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

.stat-number {
  display: inline-block;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-family: var(--font-primary);
}

.stat-unit {
  display: inline-block;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-left: var(--space-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  animation: bounce 2s ease infinite;
}

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

.scroll-mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--color-text-tertiary);
  border-radius: var(--radius-full);
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--color-text-tertiary);
  border-radius: var(--radius-full);
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s ease infinite;
}

@keyframes scroll-wheel {
  0% { top: 8px; opacity: 1; }
  100% { top: 20px; opacity: 0; }
}

/* ==========================================
   SECTION COMMON STYLES
   ========================================== */

section {
  padding: var(--section-padding-y) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  margin-bottom: var(--space-4);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ==========================================
   BENTO GRID (About Section)
   ========================================== */

.about-section {
  background: var(--color-surface);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.bento-card {
  padding: var(--space-8);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.bento-card:hover::before {
  opacity: 0.05;
}

.bento-content {
  position: relative;
  z-index: 1;
}

.bento-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.bento-card p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

.bento-large {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .bento-large {
    grid-column: span 1;
  }
}

.bento-wide {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .bento-wide {
    grid-column: span 1;
  }
}

.visual-orb {
  width: 200px;
  height: 200px;
  background: var(--gradient-primary);
  border-radius: 50%;
  opacity: 0.2;
  filter: blur(40px);
  position: absolute;
  right: -50px;
  bottom: -50px;
  animation: orb-float 6s ease-in-out infinite;
}

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

.tech-stack-mini {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

.tech-stack-mini span {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.tech-stack-mini span:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.visual-code {
  position: relative;
  z-index: 1;
}

.visual-code code {
  display: block;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-dark-surface);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-mono);
}

.bento-metrics {
  display: flex;
  justify-content: space-around;
  gap: var(--space-6);
  text-align: center;
  flex-wrap: wrap;
}

.metric {
  flex: 1;
  min-width: 120px;
}

.metric-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-primary);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
}

/* ==========================================
   CAPABILITIES SECTION
   ========================================== */

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.capability-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.capability-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.card-glow {
  position: absolute;
  inset: -50%;
  background: var(--gradient-primary);
  opacity: 0;
  filter: blur(30px);
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.capability-card:hover .card-glow {
  opacity: 0.1;
}

.card-3d {
  transform-style: preserve-3d;
}

.card-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-2);
  border-radius: var(--radius-xl);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  transition: all var(--transition-base);
}

.capability-card:hover .card-icon {
  background: var(--gradient-primary);
  color: white;
  transform: scale(1.1) rotateY(10deg);
}

.capability-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.capability-card p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.card-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.card-tags span {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  transition: all var(--transition-fast);
}

.card-tags span:hover {
  background: var(--color-primary);
  color: white;
}

/* ==========================================
   PRODUCTS SECTION
   ========================================== */

.products-section {
  background: var(--color-surface);
}

.product-featured {
  margin-bottom: var(--space-16);
}

.product-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 1024px) {
  .product-showcase {
    grid-template-columns: 1fr;
  }
}

.product-visual {
  position: relative;
}

.product-3d-container {
  position: relative;
  height: 500px;
}

.product-screens {
  position: relative;
  height: 100%;
}

.screen-phone,
.screen-dashboard {
  position: absolute;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
  transition: transform var(--transition-slow);
}

.screen-phone {
  width: 250px;
  top: 20%;
  left: 10%;
  z-index: 2;
}

.screen-phone:hover {
  transform: translateY(-10px) rotateY(-5deg);
}

.screen-dashboard {
  width: 400px;
  bottom: 10%;
  right: 0;
  z-index: 1;
}

.screen-dashboard:hover {
  transform: translateY(-10px) rotateY(5deg);
}

@media (max-width: 640px) {
  .product-3d-container {
    height: 400px;
  }

  .screen-phone {
    width: 180px;
  }

  .screen-dashboard {
    width: 260px;
  }
}

.phone-frame,
.dashboard-frame {
  border-radius: inherit;
  overflow: hidden;
}

.phone-frame img,
.dashboard-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.product-glow-effect {
  position: absolute;
  inset: -20%;
  background: var(--gradient-primary);
  filter: blur(60px);
  opacity: 0.15;
  pointer-events: none;
  animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.25; }
}

.product-info {
  max-width: 600px;
}

.product-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-success);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-6);
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: white;
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

.product-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-2);
}

.product-subtitle {
  display: block;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
}

.product-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
}

.product-features {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.feature-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.feature-item:hover {
  background: var(--color-surface-2);
}

.feature-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.feature-item strong {
  display: block;
  margin-bottom: var(--space-1);
  color: var(--color-text-primary);
}

.feature-item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-relaxed);
}

.product-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Roadmap */
.product-roadmap {
  padding: var(--space-12);
  background: var(--color-background);
  border-radius: var(--radius-3xl);
  border: 1px solid var(--color-border);
}

.roadmap-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-8);
  text-align: center;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.roadmap-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.roadmap-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.roadmap-status {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
}

.status-progress {
  background: var(--color-accent);
  color: white;
}

.status-concept {
  background: var(--color-warning);
  color: white;
}

.status-active {
  background: var(--color-success);
  color: white;
}

.roadmap-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.roadmap-card p {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.roadmap-eta {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
}

/* ==========================================
   INDUSTRIES SECTION
   ========================================== */

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.industry-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
  text-align: center;
}

.industry-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.industry-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: inline-block;
  transition: transform var(--transition-base);
}

.industry-card:hover .industry-icon {
  transform: scale(1.2) rotate(5deg);
}

.industry-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.industry-card p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

/* ==========================================
   AI SECTION
   ========================================== */

.ai-section {
  background: var(--color-surface);
}

.ai-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-12);
  align-items: center;
}

@media (max-width: 1024px) {
  .ai-content {
    grid-template-columns: 1fr;
  }
}

.ai-visual {
  position: relative;
  height: 500px;
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-surface-3) 100%);
  border-radius: var(--radius-3xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

#neural-network {
  width: 100%;
  height: 100%;
}

.ai-visual-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to bottom, transparent 0%, var(--color-surface) 80%);
  padding: var(--space-6);
}

.code-snippet {
  padding: var(--space-6);
  background: var(--color-dark-surface);
  border-radius: var(--radius-xl);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  box-shadow: var(--shadow-2xl);
  max-width: 400px;
}

.code-comment {
  color: #6b7280;
}

.code-keyword {
  color: var(--color-purple);
  font-weight: var(--font-weight-semibold);
}

.code-string {
  color: var(--color-success);
}

.ai-info {
  max-width: 600px;
}

.ai-capabilities {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.ai-capability-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.ai-capability-item:hover {
  background: var(--color-surface-2);
}

.capability-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-xl);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  font-family: var(--font-primary);
}

.ai-capability-item h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

.ai-capability-item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-relaxed);
}

/* ==========================================
   TEAM SECTION
   ========================================== */

.team-section {
  padding: var(--section-padding-y) 0;
  background: var(--color-background);
  position: relative;
  overflow: hidden;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.team-card {
  position: relative;
  height: 450px;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.team-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
}

.team-card-front,
.team-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.team-card-front {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  opacity: 1;
  transform: translateY(0);
  z-index: 2;
}

.team-card-back {
  background: var(--gradient-primary);
  color: white;
  border: none;
  opacity: 0;
  transform: translateY(20px);
  z-index: 1;
}

.team-card:hover .team-card-front {
  opacity: 0;
  transform: translateY(-20px);
}

.team-card:hover .team-card-back {
  opacity: 1;
  transform: translateY(0);
}

.team-image {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--space-4);
  border: 4px solid var(--color-primary);
  transition: all var(--transition-base);
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.team-role {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.team-expertise {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}

.team-expertise span {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
}

.team-card-back p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  color: rgba(255, 255, 255, 0.9);
}

.team-social {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  color: white;
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.team-social:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

@media (max-width: 640px) {
  .team-card {
    height: 350px;
  }
}

/* ==========================================
   TESTIMONIALS SECTION
   ========================================== */

.testimonials-section {
  background: var(--color-surface);
}

.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}

.testimonial-card {
  padding: var(--space-8);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.testimonial-rating {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

.testimonial-text {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.author-avatar {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.author-info {
  flex: 1;
}

.author-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.author-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.contact-section {
  position: relative;
  background: var(--color-surface);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
}

.contact-bg .gradient-mesh {
  animation: mesh-shift 25s ease infinite;
}

.contact-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-12);
}

@media (max-width: 1024px) {
  .contact-content {
    grid-template-columns: 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.contact-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

.contact-methods {
  display: grid;
  gap: var(--space-4);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.contact-method:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.method-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.method-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.method-value {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.contact-locations h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.location-list {
  display: grid;
  gap: var(--space-3);
}

.location-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.location-pin {
  font-size: 1.2em;
}

/* Contact Form */
.contact-form-wrapper {
  padding: var(--space-8);
  background: var(--color-background);
  border-radius: var(--radius-3xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.contact-form {
  display: grid;
  gap: var(--space-6);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
  outline: none;
}

.btn-submit {
  position: relative;
  width: 100%;
}

.btn-loader {
  display: none;
  position: absolute;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn-submit.loading .btn-text {
  opacity: 0.5;
}

.btn-submit.loading .btn-loader {
  display: block;
}

@keyframes spin {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* Success Overlay */
.success-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: var(--backdrop-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.success-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.success-content {
  background: var(--color-background);
  padding: var(--space-12);
  border-radius: var(--radius-3xl);
  text-align: center;
  max-width: 400px;
  transform: scale(0.9);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-2xl);
}

.success-overlay.active .success-content {
  transform: scale(1);
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: var(--font-weight-bold);
  margin: 0 auto var(--space-6);
}

.success-content h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.success-content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

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

.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
  text-decoration: none;
  color: inherit;
  font-family: var(--font-primary);
}

.footer-tagline {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.footer-social a:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateY(-2px);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-8);
}

.footer-column h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.footer-column a {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
  text-decoration: none;
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.footer-tagline-small {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ==========================================
   RESPONSIVE BREAKPOINTS
   ========================================== */

@media (max-width: 640px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ==========================================
   SMOOTH SCROLL BEHAVIOR
   ========================================== */

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* ==========================================
   LOADING STATE
   ========================================== */

body.loading {
  overflow: hidden;
}

.page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-background);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ==========================================
   AOS VISIBILITY FIX
   Ensure all animated elements are visible
   ========================================== */

[data-aos] {
  opacity: 1 !important;
  transform: none !important;
  pointer-events: auto !important;
}

/* Allow AOS to animate when initialized */
[data-aos].aos-animate {
  opacity: 1 !important;
  transform: translate(0) scale(1) !important;
}

/* ==========================================
   FORM VALIDATION ERROR STYLES
   ========================================== */

/* Error state for form fields */
.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: #dc2626;
  background-color: #fef2f2;
}

.form-group.error input:focus,
.form-group.error textarea:focus,
.form-group.error select:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Field-specific error messages */
.field-error {
  display: block;
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  font-weight: 500;
}

/* Global form message container */
.form-message {
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Error message styling */
.form-message.error {
  background-color: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
}

/* Success message styling */
.form-message.success {
  background-color: #f0fdf4;
  color: #16a34a;
  border: 1px solid #bbf7d0;
}

/* ==========================================
   BACK TO TOP BUTTON
   ========================================== */

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border: none;
  cursor: pointer;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: #ffffff;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.4);
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
  }

  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}