/* CSS Custom Properties for Theme System */
:root {
  /* Light theme colors - HSL triplets for modern CSS usage */
  --background: 0 0% 100%;
  --foreground: 222 47% 11%;
  --card: 0 0% 100%;
  --card-foreground: 222 47% 11%;
  --popover: 0 0% 100%;
  --popover-foreground: 222 47% 11%;
  --primary: 221 83% 53%;
  --primary-foreground: 210 40% 98%;
  --secondary: 210 40% 96%;
  --secondary-foreground: 222 47% 11%;
  --muted: 210 40% 96%;
  --muted-foreground: 215 16% 47%;
  --accent: 142 71% 45%;
  --accent-foreground: 210 40% 98%;
  --destructive: 0 84% 60%;
  --destructive-foreground: 210 40% 98%;
  --border: 214 32% 91%;
  --input: 214 32% 91%;
  --ring: 221 83% 53%;
  
  /* Font families */
  --font-sans: "Inter", system-ui, sans-serif;
  --font-serif: Georgia, serif;
  --font-mono: Menlo, monospace;
  --font-hero: "Poppins", system-ui, sans-serif;
  
  /* Border radius */
  --radius: 0.75rem;
}

/* Dark theme colors */
[data-theme="dark"] {
  --background: 222 47% 11%;
  --foreground: 213 31% 91%;
  --card: 217 33% 17%;
  --card-foreground: 213 31% 91%;
  --popover: 217 33% 17%;
  --popover-foreground: 213 31% 91%;
  --primary: 221 83% 53%;
  --primary-foreground: 210 40% 98%;
  --secondary: 217 33% 17%;
  --secondary-foreground: 213 31% 91%;
  --muted: 217 33% 17%;
  --muted-foreground: 215 20% 65%;
  --accent: 142 71% 45%;
  --accent-foreground: 210 40% 98%;
  --destructive: 0 84% 60%;
  --destructive-foreground: 210 40% 98%;
  --border: 217 33% 17%;
  --input: 217 33% 17%;
  --ring: 221 83% 53%;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* Utility classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--accent)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Header styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background-color: hsl(var(--background) / 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid hsl(var(--border));
  transition: all 0.3s ease;
}

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

.header-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: hsl(var(--foreground));
  transition: color 0.3s ease;
  padding: 0.5rem 0;
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: hsl(var(--primary));
}

.theme-toggle {
  background: none;
  border: none;
  color: hsl(var(--foreground));
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background-color: hsl(var(--muted));
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  width: 1.25rem;
  height: 1.25rem;
  position: absolute;
  transition: all 0.3s ease;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(90deg);
}

[data-theme="dark"] .theme-toggle .icon-moon {
  opacity: 1;
  transform: rotate(0deg);
}

.theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg);
}

.theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(-90deg);
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: hsl(var(--foreground));
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
  position: relative;
}

.mobile-menu-toggle .icon-menu,
.mobile-menu-toggle .icon-close {
  width: 1.5rem;
  height: 1.5rem;
  position: absolute;
  transition: all 0.3s ease;
}

.mobile-menu-toggle .icon-close {
  opacity: 0;
  transform: rotate(90deg);
}

.mobile-menu-toggle.active .icon-menu {
  opacity: 0;
  transform: rotate(-90deg);
}

.mobile-menu-toggle.active .icon-close {
  opacity: 1;
  transform: rotate(0deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem;
  background-color: hsl(var(--background));
  border-top: 1px solid hsl(var(--border));
}

.nav-mobile.active {
  display: flex;
}

.nav-link-mobile {
  padding: 1rem 0;
  color: hsl(var(--foreground));
  border-bottom: 1px solid hsl(var(--border));
  transition: color 0.3s ease;
}

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

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

/* Hero section */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  background-attachment: fixed;
}

/* Hero background - Light mode */
.hero-section {
  background: linear-gradient(135deg, 
    hsl(var(--background)) 0%, 
    hsl(var(--muted)) 25%, 
    hsl(var(--secondary)) 50%, 
    hsl(var(--muted)) 75%, 
    hsl(var(--background)) 100%);
}

/* Hero background - Dark mode */
[data-theme="dark"] .hero-section {
  background: linear-gradient(135deg, 
    hsl(222, 47%, 8%) 0%, 
    hsl(217, 33%, 12%) 25%, 
    hsl(220, 40%, 15%) 50%, 
    hsl(216, 35%, 10%) 75%, 
    hsl(222, 47%, 8%) 100%);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

/* Light mode overlay */
.hero-section::before {
  background-image: 
    radial-gradient(circle at 20% 30%, hsl(221 83% 53% / 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, hsl(142 71% 45% / 0.06) 0%, transparent 35%),
    radial-gradient(circle at 40% 80%, hsl(221 83% 53% / 0.04) 0%, transparent 30%);
}

/* Dark mode overlay */
[data-theme="dark"] .hero-section::before {
  background-image: 
    radial-gradient(circle at 20% 30%, hsl(221 83% 53% / 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, hsl(142 71% 45% / 0.12) 0%, transparent 35%),
    radial-gradient(circle at 40% 80%, hsl(221 83% 53% / 0.08) 0%, transparent 30%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 1rem;
}

.hero-text {
  animation: fadeIn 0.6s ease-in-out;
}

.hero-greeting {
  font-family: var(--font-hero);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: hsl(var(--primary));
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-hero);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 0.95;
  color: hsl(var(--foreground));
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-family: var(--font-hero);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  font-size: 0.875rem;
  max-width: 48rem;
  margin: 0 auto 1.5rem;
}

.hero-cta {
  padding-top: 1.5rem;
}

.hero-social {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 2rem;
  padding-bottom: 2rem;
}

.social-link {
  color: hsl(var(--muted-foreground));
  transition: color 0.3s ease;
}

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

.social-link svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* Button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 0;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-decoration: none;
}

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

.btn-outline:hover {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.btn-primary:hover {
  background-color: hsl(var(--primary) / 0.9);
}

.btn-full {
  width: 100%;
  padding: 1rem 1.5rem;
}

.btn-icon {
  width: 1rem;
  height: 1rem;
}

/* Section styles */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: hsl(var(--foreground));
}

.section-subtitle {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
}

/* About section */
.about-section {
  background-color: hsl(var(--card));
}

.about-content {
  max-width: 64rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.about-image {
  flex-shrink: 0;
}

.profile-image {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid hsl(var(--background));
}

.about-text {
  flex: 1;
  text-align: center;
}

.about-name {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: hsl(var(--card-foreground));
}

.about-role {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
}

.about-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
}

.location-icon {
  width: 1rem;
  height: 1rem;
}

.about-description {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  margin-bottom: 1rem;
  max-width: 48rem;
}

.about-cta {
  padding-top: 1rem;
}

/* Skills section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 64rem;
  margin: 0 auto;
}

.skill-card {
  background-color: hsl(var(--card));
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid hsl(var(--border));
  text-align: center;
  transition: all 0.3s ease;
}

.skill-card:hover {
  border-color: hsl(var(--primary) / 0.5);
  box-shadow: 0 10px 25px hsl(var(--primary) / 0.1);
}

.skill-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.skill-card.primary .skill-icon {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.skill-card.primary:hover .skill-icon {
  background-color: hsl(var(--primary) / 0.2);
}

.skill-card.accent .skill-icon {
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
}

.skill-card.accent:hover .skill-icon {
  background-color: hsl(var(--accent) / 0.2);
}

.skill-icon svg {
  width: 2rem;
  height: 2rem;
}

.skill-name {
  font-weight: 600;
  color: hsl(var(--card-foreground));
  margin-bottom: 0.5rem;
}

.skill-description {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

/* Experience section */
.experience-section {
  background-color: hsl(var(--secondary) / 0.3);
}

.experience-timeline {
  max-width: 64rem;
  margin: 0 auto;
  position: relative;
}

.timeline-line {
  position: absolute;
  left: 2rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: hsl(var(--border));
}

.experience-item {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.experience-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.experience-icon.primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.experience-icon.accent {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.experience-icon.secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border: 2px solid hsl(var(--border));
}

.experience-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.experience-content {
  flex: 1;
  padding-top: 0.5rem;
}

.experience-period {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 9999px;
  margin-bottom: 0.5rem;
}

.experience-period.primary {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.experience-period.accent {
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
}

.experience-period.secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
}

.experience-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: hsl(var(--foreground));
}

.experience-company {
  font-weight: 600;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.experience-description {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
}

/* Projects section */
.projects-grid {
  display: grid;
  gap: 2rem;
  max-width: 80rem;
  margin: 0 auto;
}

.project-card {
  background-color: hsl(var(--card));
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid hsl(var(--border));
  transition: all 0.3s ease;
}

.project-card:hover {
  box-shadow: 0 20px 40px hsl(var(--primary) / 0.1);
  transform: translateY(-4px);
}

.project-image {
  width: 100%;
  height: 12rem;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.project-content {
  padding: 1.5rem;
}

.project-tech-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  margin-bottom: 1rem;
}

.project-tech-badge.primary {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.project-tech-badge.accent {
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: hsl(var(--card-foreground));
}

.project-description {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background-color: hsl(var(--muted));
  color: hsl(var(--muted-foreground));
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

/* Apps section */
.apps-section {
  background-color: hsl(var(--secondary) / 0.3);
}

.apps-grid {
  display: grid;
  gap: 2rem;
  max-width: 80rem;
  margin: 0 auto;
}

.app-card {
  background-color: hsl(var(--card));
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid hsl(var(--border));
  text-align: center;
  transition: all 0.3s ease;
}

.app-card:hover {
  box-shadow: 0 20px 40px hsl(var(--primary) / 0.1);
}

.app-icon {
  width: 5rem;
  height: 5rem;
  margin: 0 auto 1rem;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-icon.primary {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.app-icon.accent {
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
}

.app-icon svg {
  width: 2.5rem;
  height: 2.5rem;
}

.app-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: hsl(var(--card-foreground));
}

.app-subtitle {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
  color: hsl(var(--muted-foreground));
}

.app-description {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* Contact section */
.contact-content {
  max-width: 80rem;
  margin: 0 auto;
  display: grid;
  gap: 3rem;
}

.contact-info {
  space-y: 2rem;
}

.contact-info-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: hsl(var(--foreground));
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon.primary {
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.contact-icon.accent {
  background-color: hsl(var(--accent) / 0.1);
  color: hsl(var(--accent));
}

.contact-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.contact-details {
  flex: 1;
}

.contact-label {
  font-weight: 500;
  color: hsl(var(--foreground));
  margin-bottom: 0.25rem;
}

.contact-link {
  color: hsl(var(--muted-foreground));
  transition: color 0.3s ease;
}

.contact-link:hover {
  color: hsl(var(--primary));
}

.contact-text {
  color: hsl(var(--muted-foreground));
}

.connect-section {
  margin-top: 2rem;
}

.connect-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: hsl(var(--foreground));
}

.connect-links {
  display: flex;
  gap: 1rem;
}

.connect-link {
  width: 3rem;
  height: 3rem;
  background-color: hsl(var(--primary) / 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: hsl(var(--primary));
  transition: all 0.3s ease;
}

.connect-link:hover {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.connect-link svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* Contact form */
.contact-form-wrapper {
  background-color: hsl(var(--card));
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid hsl(var(--border));
}

.contact-form-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: hsl(var(--card-foreground));
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: hsl(var(--card-foreground));
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 2px hsl(var(--primary) / 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 6rem;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: hsl(var(--muted-foreground));
}

/* Footer */
.footer {
  padding: 3rem 0;
  background-color: hsl(var(--card));
  border-top: 1px solid hsl(var(--border));
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1.5rem;
}

.footer-brand {
  text-align: center;
}

.footer-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  color: hsl(var(--muted-foreground));
}

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

.footer-link {
  color: hsl(var(--muted-foreground));
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: hsl(var(--primary));
}

.footer-link svg {
  width: 1.5rem;
  height: 1.5rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid hsl(var(--border));
  text-align: center;
}

.footer-copyright {
  color: hsl(var(--muted-foreground));
}

/* Toast styles */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: 0.5rem;
  padding: 1rem 1.5rem;
  box-shadow: 0 10px 25px hsl(0 0% 0% / 0.1);
  min-width: 20rem;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left: 4px solid hsl(var(--accent));
}

.toast.error {
  border-left: 4px solid hsl(var(--destructive));
}

.toast-title {
  font-weight: 600;
  color: hsl(var(--card-foreground));
  margin-bottom: 0.25rem;
}

.toast-description {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
}

/* Animations */
@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  0% {
    transform: translateX(100%);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive design */
@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .hero-title {
    font-size: 4.5rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .about-content {
    flex-direction: row;
    text-align: left;
  }
  
  .about-text {
    text-align: left;
  }
  
  .about-location {
    justify-content: flex-start;
  }
  
  .profile-image {
    width: 10rem;
    height: 10rem;
  }
  
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-content {
    flex-direction: row;
  }
  
  .footer-brand {
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 6rem;
  }
  
  .skills-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1280px) {
  .hero-title {
    font-size: 8rem;
  }
}