/* ==========================================================================
   Vision-Net Technologies - Main Production Stylesheet
   ========================================================================== */

/* Container & Grid System */
.vn-container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.vn-container-narrow {
  max-width: 960px;
}

.vn-section {
  padding-top: 96px;
  padding-bottom: 96px;
  position: relative;
}

.vn-section-sm {
  padding-top: 60px;
  padding-bottom: 60px;
}

.vn-section-dark {
  background-color: var(--primary-navy);
  color: #ffffff;
}

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

.vn-grid {
  display: grid;
  gap: 32px;
}

.vn-grid-2 { grid-template-columns: repeat(2, 1fr); }
.vn-grid-3 { grid-template-columns: repeat(3, 1fr); }
.vn-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .vn-grid-3, .vn-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .vn-section { padding-top: 60px; padding-bottom: 60px; }
  .vn-grid-2, .vn-grid-3, .vn-grid-4 { grid-template-columns: 1fr; }
}

/* Typography & Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: inherit;
  margin-bottom: 16px;
}

.vn-section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.vn-section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.vn-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
  margin-bottom: 16px;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.vn-section-dark .vn-badge-tag {
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-orange);
  border-color: rgba(6, 182, 212, 0.25);
}

.vn-section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  letter-spacing: -0.02em;
}

.vn-section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.vn-section-dark .vn-section-subtitle {
  color: #94a3b8;
}

/* Top Notification Bar */
.vn-topbar {
  background: #070d19;
  color: #94a3b8;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 0;
}

.vn-topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.vn-topbar-left, .vn-topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.vn-topbar a:hover {
  color: #ffffff;
}

.vn-cert-pill {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  color: #ffbd02;
  font-weight: 600;
  font-size: 0.75rem;
}

/* Main Navigation Header */
.vn-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-normal);
}

.vn-nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Brand Logo */
.vn-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-navy);
}

.vn-logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.vn-logo-text span {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--primary-blue);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: -2px;
}

/* Nav Menu */
.vn-nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
}

.vn-nav-item {
  position: relative;
}

.vn-nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--primary-navy);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.vn-nav-link:hover, .vn-nav-link.active {
  color: var(--primary-blue);
  background: rgba(37, 99, 235, 0.06);
}

/* Services Mega Dropdown */
.vn-dropdown-menu {
  position: absolute;
  top: 100%;
  left: -160px;
  width: 720px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 1050;
}

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

.vn-dropdown-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.vn-dropdown-card:hover {
  background: var(--surface-light);
  transform: translateX(4px);
}

.vn-dropdown-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vn-dropdown-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--primary-navy);
  margin-bottom: 2px;
}

.vn-dropdown-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Nav Actions */
.vn-nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.vn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.vn-btn-primary {
  background: var(--primary-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.vn-btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.vn-btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}

.vn-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

.vn-btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border-color: var(--primary-blue);
}

.vn-btn-outline:hover {
  background: rgba(37, 99, 235, 0.08);
}

.vn-btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.vn-btn-lg {
  padding: 16px 32px;
  font-size: 1.0625rem;
}

/* Mobile Nav Toggle */
.vn-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--primary-navy);
}

/* Hero Section */
.vn-hero {
  background: var(--gradient-hero);
  color: #ffffff;
  padding-top: 100px;
  padding-bottom: 120px;
  position: relative;
  overflow: hidden;
}

.vn-hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, rgba(6, 182, 212, 0.05) 50%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.vn-hero-content {
  max-width: 820px;
}

.vn-hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.vn-hero-title .gradient-text {
  background: linear-gradient(135deg, #faa760 0%, #ee8d22 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vn-hero-desc {
  font-size: 1.25rem;
  line-height: 1.6;
  color: #cbd5e1;
  margin-bottom: 36px;
}

.vn-hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.vn-hero-highlights {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.vn-highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: #94a3b8;
}

.vn-highlight-item svg {
  color: var(--accent-orange);
}

/* Stats Counter Bar */
.vn-stats-bar {
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 40px;
  margin-top: -60px;
  position: relative;
  z-index: 10;
  border: 1px solid var(--border-light);
}

.vn-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.vn-stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 4px;
}

.vn-stat-label {
  font-size: 0.9375rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Service Cards */
.vn-service-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.vn-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.vn-service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: #cbd5e1;
}

.vn-service-card:hover::before {
  opacity: 1;
}

.vn-service-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-fast);
}

.vn-service-card:hover .vn-service-card-icon {
  background: var(--primary-blue);
  color: #ffffff;
}

.vn-service-card-title {
  font-size: 1.25rem;
  color: var(--primary-navy);
  margin-bottom: 12px;
}

.vn-service-card-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.vn-service-card-features {
  list-style: none;
  margin-bottom: 24px;
  font-size: 0.875rem;
  color: #475569;
}

.vn-service-card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.vn-service-card-features svg {
  color: var(--accent-teal);
  flex-shrink: 0;
}

.vn-service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--primary-blue);
  margin-top: auto;
}

.vn-service-card-link:hover {
  gap: 12px;
}

/* Service Detail Page Layout */
.vn-service-detail-hero {
  background: var(--gradient-hero);
  color: #ffffff;
  padding: 80px 0 100px;
  position: relative;
}

.vn-service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  margin-top: -50px;
  position: relative;
  z-index: 10;
}

.vn-service-main-content {
  background: #ffffff;
  padding: 40px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
}

.vn-service-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.vn-sidebar-box {
  background: #ffffff;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}

.vn-tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.vn-tech-chip {
  background: var(--surface-light);
  border: 1px solid var(--border-light);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-navy);
}

/* Portfolio Grid & Filter */
.vn-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
}

.vn-filter-btn {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--surface-light);
  color: var(--text-muted);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.vn-filter-btn:hover, .vn-filter-btn.active {
  background: var(--primary-blue);
  color: #ffffff;
  border-color: var(--primary-blue);
}

.vn-portfolio-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.vn-portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.vn-portfolio-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.vn-portfolio-tag {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.vn-portfolio-stat {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-teal);
}

/* Career Cards & Modal */
.vn-job-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  transition: all var(--transition-fast);
  margin-bottom: 20px;
}

.vn-job-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-md);
}

.vn-job-badges {
  display: flex;
  gap: 12px;
  margin: 12px 0 16px;
  flex-wrap: wrap;
}

.vn-job-badge {
  background: var(--surface-light);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* Gallery Grid */
.vn-gallery-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: #0f172a;
  min-height: 280px;
  cursor: pointer;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  color: #ffffff;
}

.vn-gallery-card-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  transition: transform var(--transition-slow);
}

.vn-gallery-card:hover .vn-gallery-card-bg {
  transform: scale(1.05);
}

.vn-gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.2) 60%, transparent 100%);
}

.vn-gallery-info {
  position: relative;
  z-index: 2;
}

/* Contact Us Layout & Form */
.vn-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 48px;
}

.vn-contact-info-card {
  background: var(--primary-navy);
  color: #ffffff;
  padding: 40px;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.vn-contact-method {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.vn-contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vn-form-group {
  margin-bottom: 20px;
}

.vn-form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--primary-navy);
  margin-bottom: 8px;
}

.vn-form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: #ffffff;
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.vn-form-control:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

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

/* Disclaimer Page */
.vn-legal-document {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  line-height: 1.8;
  color: #334155;
}

.vn-legal-document h2 {
  font-size: 1.5rem;
  color: var(--primary-navy);
  margin-top: 36px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--surface-light);
  padding-bottom: 8px;
}

.vn-legal-document p {
  margin-bottom: 16px;
}

.vn-legal-document ul {
  margin-bottom: 20px;
  padding-left: 24px;
}

/* Footer */
.vn-footer {
  background: #070d19;
  color: #94a3b8;
  padding-top: 80px;
  padding-bottom: 32px;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.vn-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.5fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.vn-footer-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.vn-footer-links {
  list-style: none;
}

.vn-footer-links li {
  margin-bottom: 10px;
}

.vn-footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.vn-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
}

.vn-footer-legal-links {
  display: flex;
  gap: 20px;
}

/* Modal and Lightbox */
.vn-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 13, 25, 0.8);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.vn-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.vn-modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.vn-modal-backdrop.active .vn-modal-dialog {
  transform: translateY(0);
}

.vn-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--surface-light);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* Toast Notifications */
.vn-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.vn-toast {
  background: #0f172a;
  color: #ffffff;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  border-left: 4px solid var(--accent-teal);
  animation: slideInUp 0.3s ease;
}

@keyframes slideInUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive Overrides */
@media (max-width: 992px) {
  .vn-nav-menu, .vn-nav-actions .vn-btn-primary { display: none; }
  .vn-mobile-toggle { display: block; }
  .vn-service-detail-grid { grid-template-columns: 1fr; margin-top: 24px; }
  .vn-contact-grid { grid-template-columns: 1fr; }
  .vn-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .vn-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .vn-footer-grid { grid-template-columns: 1fr; }
  .vn-stats-grid { grid-template-columns: 1fr; }
  .vn-job-card { flex-direction: column; align-items: flex-start; }
  .vn-topbar-left, .vn-topbar-right { font-size: 0.75rem; gap: 10px; }
}

/* Mobile Slide-out Menu */
.vn-mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1500;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.vn-mobile-drawer.active {
  opacity: 1;
  visibility: visible;
}

.vn-mobile-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background: #ffffff;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.vn-mobile-drawer.active .vn-mobile-panel {
  transform: translateX(0);
}

.vn-mobile-nav-links {
  list-style: none;
  margin: 24px 0;
}

.vn-mobile-nav-links li {
  border-bottom: 1px solid var(--border-light);
}

.vn-mobile-nav-links a {
  display: block;
  padding: 14px 0;
  font-weight: 600;
  color: var(--primary-navy);
}