:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #7c3aed;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
    0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  /* Light mode colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --text-primary: #334155;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #334155;
  --card-bg: #1e293b;
  --header-bg: rgba(15, 23, 42, 0.95);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  color: var(--text-primary);
  background: linear-gradient(
    135deg,
    var(--bg-secondary) 0%,
    var(--bg-primary) 100%
  );
  line-height: 1.6;
  overflow-x: hidden;
  transition: var(--transition);
}

.container {
  width: min(90%, 1200px);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header Styles */
.header {
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0.75rem;
  gap: 0.25rem;
  z-index: 101;
  transition: var(--transition);
  min-width: 48px;
  min-height: 48px;
  align-items: center;
  justify-content: center;
}

.mobile-nav-toggle:hover {
  background: var(--bg-secondary);
  border-color: var(--primary);
}

.hamburger-line {
  width: 24px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: center;
}

.mobile-nav-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-nav-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  height: 70px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.05);
}

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

.nav a {
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  padding: 0.5rem 0;
}

[data-theme="dark"] .nav a {
  color: var(--gray-300);
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition);
}

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.dark-mode-btn {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dark-mode-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--primary);
  transform: scale(1.05);
}

.dark-mode-btn .sun-icon {
  display: block;
}

.dark-mode-btn .moon-icon {
  display: none;
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  min-height: 48px;
  min-width: 120px;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), #6d28d9);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

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

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("images/hero-bg.png") center/cover no-repeat;
  opacity: 0.1;
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.1) 0%,
    rgba(124, 58, 237, 0.1) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 1rem;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--white), var(--gray-200));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease-out;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--gray-300);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  min-width: 220px;
}

.stat:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.15);
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  display: block;
}

.stat-number {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-200);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* Section Styles */
.section-title {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Services Section */
.services {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.service-category {
  margin-bottom: 4rem;
}

.service-category:last-child {
  margin-bottom: 0;
}

.category-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-align: center;
  position: relative;
}

.category-title::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.category-description {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  margin-bottom: 1.5rem;
}

.service-icon img {
  width: 80px;
  height: 80px;
  transition: var(--transition);
}

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

.service-card h3,
.service-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-features {
  list-style: none;
  text-align: left;
  margin-top: 1.5rem;
}

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

.service-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 600;
}

.service-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.service-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tool-badge {
  background: var(--primary);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.service-card .service-icon,
.service-card h4,
.service-card .service-description {
  flex-shrink: 0;
}

.service-card .service-features {
  margin-bottom: auto;
  margin-top: 1.5rem;
}

.service-cta {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  margin-top: 1.5rem;
  flex-shrink: 0;
}

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

/* Testimonials Section */
.testimonials {
  padding: 6rem 0;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  position: relative;
}

.testimonials::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.05'%3E%3Cpath d='m36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 1;
}

.testimonials .container {
  position: relative;
  z-index: 2;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  margin-bottom: 4rem;
}

.testimonial-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 8rem;
  color: var(--primary);
  opacity: 0.1;
  font-family: serif;
  line-height: 1;
}

.testimonial-card.featured {
  transform: scale(1.05);
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-xl);
}

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

.testimonial-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.stars {
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.testimonial-content blockquote {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin: 0;
  font-style: italic;
  position: relative;
  z-index: 2;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.author-avatar {
  flex-shrink: 0;
}

.avatar-placeholder {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  font-size: 1.1rem;
}

.author-info h4 {
  margin: 0 0 0.25rem 0;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.author-info p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Client Logos */
.client-logos {
  text-align: center;
  margin-top: 3rem;
}

.client-logos h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.logos-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
  opacity: 0.7;
  transition: var(--transition);
}

.logos-grid:hover {
  opacity: 1;
}

.logo-item {
  transition: var(--transition);
}

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

.client-logo {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--card-bg);
  transition: var(--transition);
}

.client-logo:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.05);
}

/* Trust Section */
.trust-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.trust-indicators {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.trust-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.trust-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.trust-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

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

/* Case Studies Section */
.case-studies {
  padding: 6rem 0;
  background: linear-gradient(
    135deg,
    var(--bg-secondary) 0%,
    var(--bg-primary) 100%
  );
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.case-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.case-image {
  position: relative;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

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

.case-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(37, 99, 235, 0.9);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
}

.case-text {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

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

.case-text p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.case-text strong {
  color: var(--primary);
  font-weight: 600;
}

.case-text h3,
.case-text p {
  flex-shrink: 0;
}

.case-text p {
  margin-bottom: auto;
}

.case-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-shrink: 0;
}

.metric {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.metric-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* About Section */
.about {
  padding: 6rem 0;
  background: var(--bg-primary);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 2rem;
}

.about-text p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.about-text strong {
  color: var(--primary);
  font-weight: 600;
}

.about-features {
  margin-top: 2rem;
}

.feature {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-icon {
  color: var(--success);
  font-weight: 600;
  margin-right: 0.75rem;
  font-size: 1.125rem;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image::before {
  content: "";
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.1;
}

/* Contact Section */
.contact {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  color: var(--white);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.contact-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.contact-form h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.contact-form h2::after {
  background: linear-gradient(90deg, var(--accent), var(--primary));
}

.contact-form p {
  color: var(--gray-300);
  margin-bottom: 2rem;
  font-size: 1.125rem;
}

.contact-form a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.contact-form a:hover {
  text-decoration: underline;
}

.contact-form form {
  display: grid;
  gap: 1.5rem;
}

.form-group {
  position: relative;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--gray-700);
  border-radius: var(--radius);
  background: var(--dark-light);
  color: var(--white);
  font-size: 1rem;
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--gray-400);
}

.contact-form button {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.contact-form button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--gray-800);
}

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

.footer-section h4 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-section p {
  color: var(--gray-400);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
}

.social a {
  margin-left: 1.5rem;
  color: var(--gray-400);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

/* Advanced Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

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

@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Scroll animations and micro-interactions */
.animate-on-scroll {
  opacity: 0;
  transition: var(--transition);
}

.animate-on-scroll.animate {
  opacity: 1;
}

.service-card {
  animation: fadeInUp 0.6s ease-out both;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.case-card {
  animation: fadeInRight 0.6s ease-out both;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover {
  transform: translateY(-8px) scale(1.02);
}

.trust-item {
  animation: scaleIn 0.5s ease-out both;
}

.service-card:nth-child(1) {
  animation-delay: 0.1s;
}
.service-card:nth-child(2) {
  animation-delay: 0.2s;
}
.service-card:nth-child(3) {
  animation-delay: 0.3s;
}
.service-card:nth-child(4) {
  animation-delay: 0.4s;
}
.service-card:nth-child(5) {
  animation-delay: 0.5s;
}

.case-card:nth-child(1) {
  animation-delay: 0.1s;
}
.case-card:nth-child(2) {
  animation-delay: 0.2s;
}
.case-card:nth-child(3) {
  animation-delay: 0.3s;
}

.trust-item:nth-child(1) {
  animation-delay: 0.1s;
}
.trust-item:nth-child(2) {
  animation-delay: 0.2s;
}
.trust-item:nth-child(3) {
  animation-delay: 0.3s;
}
.trust-item:nth-child(4) {
  animation-delay: 0.4s;
}

/* Enhanced button interactions */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* Service icon animations */
.service-icon {
  position: relative;
  overflow: hidden;
}

.service-icon::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 70%
  );
  transform: rotate(45deg);
  transition: var(--transition);
  opacity: 0;
}

.service-card:hover .service-icon::before {
  opacity: 1;
  animation: shimmer 1.5s ease-in-out;
}

/* Floating animation for hero elements */
.hero-stats .stat:nth-child(1) {
  animation: float 6s ease-in-out infinite;
  animation-delay: 0s;
}

.hero-stats .stat:nth-child(2) {
  animation: float 6s ease-in-out infinite;
  animation-delay: 2s;
}

.hero-stats .stat:nth-child(3) {
  animation: float 6s ease-in-out infinite;
  animation-delay: 4s;
}

/* Form Validation Styles */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.error-message {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.5rem;
  display: none;
}

.contact-form input.error,
.contact-form textarea.error {
  border-color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

.form-status {
  margin-top: 1rem;
}

.success-message {
  color: var(--success);
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success);
  padding: 1rem;
  border-radius: var(--radius);
  margin: 0;
}

.form-status .error-message {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  padding: 1rem;
  border-radius: var(--radius);
  display: block;
  margin: 0;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-loading {
  display: none;
}

/* Performance optimizations */
img {
  max-width: 100%;
  height: auto;
}

/* Improve loading performance */
.hero::before {
  will-change: opacity;
}

.service-card,
.case-card {
  will-change: transform;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: flex;
    order: 4;
    margin-left: auto;
    margin-right: 1rem;
  }

  .header-inner {
    position: relative;
    padding: 1rem 0;
    gap: 1rem;
  }

  .logo {
    order: 0;
    flex: 1;
  }

  .header-actions {
    order: 3;
    gap: 0.75rem;
    flex-shrink: 0;
  }

  .header-actions .btn {
    display: none;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    min-width: auto;
  }

  .dark-mode-btn {
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
    gap: 0;
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav a {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    font-size: 1.1rem;
  }

  .nav a:last-child {
    border-bottom: none;
  }

  .hero-content {
    padding: 4rem 1rem 2rem;
    margin-top: 2rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

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

  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }

  .stat {
    flex: 1;
    min-width: calc(50% - 0.5rem);
    max-width: 200px;
    padding: 1rem;
  }

  .stat:last-child {
    flex-basis: 100%;
  }

  .services-grid,
  .case-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .service-category {
    margin-bottom: 3rem;
  }

  .category-title {
    font-size: 1.5rem;
  }

  .about-inner,
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image::before {
    display: none;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

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

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .testimonial-card.featured {
    transform: none;
    order: -1;
  }

  .testimonial-card.featured:hover {
    transform: translateY(-8px);
  }

  .logos-grid {
    gap: 1.5rem;
  }

  .client-logo {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .social a {
    margin: 0 0.75rem;
  }
}

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

  .header-inner {
    padding: 0.75rem 0;
  }

  .mobile-nav-toggle {
    margin-right: 0.5rem;
  }

  .header-actions {
    gap: 0.5rem;
  }

  .header-actions .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .hero-content {
    padding: 3rem 0.5rem 2rem;
    margin-top: 1rem;
  }

  .hero-content h1 {
    font-size: 1.75rem;
    line-height: 1.3;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .service-card,
  .case-card {
    padding: 1.5rem;
  }

  .hero-stats {
    gap: 0.75rem;
  }

  .stat {
    padding: 0.75rem;
    min-width: calc(50% - 0.375rem);
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-icon {
    font-size: 1.5rem;
  }
}