/* Removed external font imports and optimized for performance */
/* Modern CSS custom properties with better color system */
:root {
  /* Colors - Modern palette with better contrast */
  --color-primary: #0ea5e9;
  --color-primary-dark: #0284c7;
  --color-secondary: #f59e0b;
  --color-accent: #8b5cf6;

  --color-background: #0f172a;
  --color-surface: #1e293b;
  --color-surface-light: #334155;

  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  --color-border: #334155;
  --color-border-light: #475569;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Using system fonts for better performance */
  --font-family-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono",
    Consolas, "Courier New", monospace;

  --font-size-xs: 0.8rem;
  --font-size-sm: 1rem;
  --font-size-base: 1.2rem;
  --font-size-lg: 1.4rem;
  --font-size-xl: 1.6rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.4rem;
  --font-size-4xl: 3rem;
  --font-size-5xl: 3.8rem;
  --font-size-6xl: 4.8rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --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);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Base styles with modern reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family-primary);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Modern container system */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-lg {
  max-width: 1400px;
}

/* Enhanced typography system */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-number {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  font-weight: 600;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin: var(--spacing-md) 0;
  background: linear-gradient(
    135deg,
    var(--color-text-primary) 0%,
    var(--color-text-secondary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  margin: 0 auto;
  border-radius: var(--radius-sm);
}

/* Modern button system */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

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

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

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

.btn svg {
  width: 18px;
  height: 18px;
}

/* Enhanced preloader without external dependencies */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-background);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.preloader-content {
  text-align: center;
}

.code-animation {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
}

.code-animation span:first-child,
.code-animation span:last-child {
  color: var(--color-primary);
}

.typing {
  color: var(--color-text-primary);
  animation: typing 2s steps(15) infinite;
}

@keyframes typing {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0.3;
  }
}

.loading-bar {
  width: 200px;
  height: 3px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-secondary)
  );
  border-radius: var(--radius-sm);
  animation: loading 2s ease-in-out infinite;
}

@keyframes loading {
  0% {
    width: 0%;
  }
  50% {
    width: 70%;
  }
  100% {
    width: 100%;
  }
}

/* Modern header with glassmorphism */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-lg) 0;
  transition: all var(--transition-normal);
}

.header-sticky {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xl);
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text-primary);
}

.logo-bracket {
  color: var(--color-primary);
}

.logo-name {
  margin: 0 var(--spacing-xs);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-number {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
}

.nav-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger-line {
  width: 25px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-fast);
}

/* Hero section with modern design */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.code-rain {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 50%,
      rgba(14, 165, 233, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(139, 92, 246, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 40% 80%,
      rgba(245, 158, 11, 0.1) 0%,
      transparent 50%
    );
  animation: float 20s ease-in-out infinite;
}

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

.hero-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-greeting {
  margin-bottom: var(--spacing-lg);
}

.greeting-text {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  font-weight: 500;
}

.hero-heading {
  margin-bottom: var(--spacing-xl);
}

.hero-name {
  display: block;
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.hero-subtitle {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-family-mono);
}

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

.hero-social {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-container {
  position: relative;
  max-width: 600px;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-element {
  position: absolute;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  top: 10%;
  right: -10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  top: 60%;
  left: -15%;
  animation-delay: 1s;
}

.floating-element:nth-child(3) {
  bottom: 20%;
  right: -5%;
  animation-delay: 2s;
}

.floating-element:nth-child(4) {
  top: 30%;
  left: -10%;
  animation-delay: 3s;
}

/* About section with modern card design */
.about {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(
    135deg,
    var(--color-background) 0%,
    var(--color-surface) 100%
  );
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: start;
}

.about-text {
  max-width: 600px;
}

.about-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.about-highlights {
  margin-bottom: var(--spacing-2xl);
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

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

.highlight-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.highlight-content h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.highlight-content p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.skills-container {
  background: var(--color-surface);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.skills-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
}

.skills-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.skill-category h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag.primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.skill-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Services section */
.services {
  padding: var(--spacing-4xl) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
}

.service-card {
  background: var(--color-surface);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.service-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-lg);
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.service-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.service-features {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.service-features li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

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

.service-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Timeline section */
.timeline {
  padding: var(--spacing-4xl) 0;
  background: var(--color-surface);
}

.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-container::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-3xl);
  display: flex;
  align-items: center;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: calc(52% + var(--spacing-xl));
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: calc(52% + var(--spacing-xl));
}

.timeline-date {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
  z-index: 2;
}

.timeline-content {
  background: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  max-width: 400px;
}

.timeline-content h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.timeline-content p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.timeline-content a {
  color: var(--color-primary);
  text-decoration: none;
}

.timeline-content a:hover {
  text-decoration: underline;
}

/* Testimonials section */
.testimonials {
  padding: var(--spacing-4xl) 0;
}

.testimonial-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-surface);
  padding: var(--spacing-3xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial-quote {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-lg);
  color: var(--color-primary);
  opacity: 0.3;
}

.testimonial-quote svg {
  width: 32px;
  height: 32px;
}

.testimonial-text {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.author-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.author-role {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.author-company {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.testimonial-rating .stars {
  color: var(--color-secondary);
  font-size: var(--font-size-lg);
}

/* Contact section */
.contact {
  padding: var(--spacing-4xl) 0;
  background: var(--color-surface);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: start;
}

.contact-info h3 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.contact-info p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-2xl);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.contact-method:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.method-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  color: white;
  flex-shrink: 0;
}

.method-icon svg {
  width: 20px;
  height: 20px;
}

.method-info h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.method-info a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.contact-form-container {
  background: var(--color-background);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

/* Go to top button */
.go-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.go-to-top.reveal {
  opacity: 1;
  visibility: visible;
}

.go-to-top button {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.go-to-top button:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.go-to-top svg {
  width: 20px;
  height: 20px;
}

/* Enhanced footer */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

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

.footer-logo {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.footer-tagline {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: var(--spacing-3xl);
}

.footer-section h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

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

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.footer-credit a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer-credit a:hover {
  text-decoration: underline;
}

/* Added performance-focused animations */
.animate-in {
  animation: slideInUp 0.6s ease forwards;
}

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

/* Form validation styles */
.field-error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  display: block;
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Responsive design */
@media (max-width: 1024px) {
  .hero-row,
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .hero-visual {
    order: -1;
  }

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

  .timeline-container::before {
    left: var(--spacing-xl);
  }

  .timeline-item {
    flex-direction: row !important;
  }

  .timeline-item .timeline-content {
    margin-left: calc(var(--spacing-xl) * 2) !important;
    margin-right: 0 !important;
    text-align: left !important;
  }

  .timeline-date {
    left: var(--spacing-xl) !important;
    transform: translateX(-50%) !important;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .nav-list {
    display: none;
  }

  .nav-btn {
    display: flex;
  }

  .hero-name {
    font-size: var(--font-size-4xl);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

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

  .section-title {
    font-size: var(--font-size-3xl);
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: var(--font-size-3xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

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