/* Modern Portfolio Styles */
/* Using Inter & Space Grotesk fonts for modern typography */

:root {
  /* Light mode colors */
  --color-primary-light: #0f172a;     /* Slate 900 */
  --color-secondary-light: #334155;   /* Slate 600 */
  --color-accent-light: #3b82f6;      /* Blue 500 */
  --color-accent-hover-light: #2563eb;/* Blue 600 */
  --color-text-light: #1e293b;        /* Slate 800 */
  --color-text-medium-light: #64748b;  /* Slate 500 */
  --color-text-lighter-light: #94a3b8;/* Slate 400 */
  --color-background-light: #ffffff;   /* White */
  --color-background-alt-light: #f8fafc; /* Slate 50 */
  --color-border-light: #e2e8f0;      /* Slate 200 */
  --color-border-lighter-light: #f1f5f9; /* Slate 100 */
  
  /* Dark mode colors */
  --color-primary-dark: #f1f5f9;      /* Slightly muted white */
  --color-secondary-dark: #b8b8b8;    /* Muted gray */
  --color-accent-dark: #5b9cf6;       /* Slightly muted blue */
  --color-accent-hover-dark: #4285f4; /* Deeper blue */
  --color-text-dark: #e0e0e0;         /* Soft white */
  --color-text-medium-dark: #9ca3af;  /* Medium gray */
  --color-text-lighter-dark: #6b7280; /* Darker gray */
  --color-background-dark: #0a0a0a;   /* Almost black */
  --color-background-alt-dark: #1a1a1a; /* Dark gray */
  --color-border-dark: #2a2a2a;       /* Dark border */
  --color-border-lighter-dark: #3a3a3a; /* Slightly lighter border */
  
  /* Default to dark mode */
  --color-primary: var(--color-primary-dark);
  --color-secondary: var(--color-secondary-dark);
  --color-accent: var(--color-accent-dark);
  --color-accent-hover: var(--color-accent-hover-dark);
  --color-text: var(--color-text-dark);
  --color-text-light: var(--color-text-medium-dark);
  --color-text-lighter: var(--color-text-lighter-dark);
  --color-background: var(--color-background-dark);
  --color-background-alt: var(--color-background-alt-dark);
  --color-border: var(--color-border-dark);
  --color-border-light: var(--color-border-lighter-dark);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;   /* 8px */
  --space-sm: 0.75rem;  /* 12px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 3rem;    /* 48px */
  --space-3xl: 4rem;    /* 64px */
  --space-4xl: 6rem;    /* 96px */
  
  /* Breakpoints */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
  
  /* Animations */
  --transition-fast: 0.1s ease-out;
  --transition-normal: 0.2s ease-out;
  --transition-slow: 0.3s ease-out;
  
  /* 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);
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Light mode styles */
[data-theme="light"] {
  --color-primary: var(--color-primary-light);
  --color-secondary: var(--color-secondary-light);
  --color-accent: var(--color-accent-light);
  --color-accent-hover: var(--color-accent-hover-light);
  --color-text: var(--color-text-light);
  --color-text-light: var(--color-text-medium-light);
  --color-text-lighter: var(--color-text-lighter-light);
  --color-background: var(--color-background-light);
  --color-background-alt: var(--color-background-alt-light);
  --color-border: var(--color-border-light);
  --color-border-light: var(--color-border-lighter-light);
}

/* Dark mode styles */
[data-theme="dark"] {
  --color-primary: var(--color-primary-dark);
  --color-secondary: var(--color-secondary-dark);
  --color-accent: var(--color-accent-dark);
  --color-accent-hover: var(--color-accent-hover-dark);
  --color-text: var(--color-text-dark);
  --color-text-light: var(--color-text-medium-dark);
  --color-text-lighter: var(--color-text-lighter-dark);
  --color-background: var(--color-background-dark);
  --color-background-alt: var(--color-background-alt-dark);
  --color-border: var(--color-border-dark);
  --color-border-light: var(--color-border-lighter-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
  font-size: 1.125rem;
  line-height: 1.7;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-hover);
}

/* Layout utilities */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-accent);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-brand a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.025em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-accent);
  color: white;
  border-radius: 50px;
  transition: all var(--transition-fast);
}

.nav-link.nav-cta:hover {
  background-color: var(--color-accent-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.nav-menu {
  display: flex;
  align-items: center;}


/* Dark mode nav CTA improvements */
[data-theme="dark"] .nav-link.nav-cta {
  background-color: var(--color-accent);
  color: var(--color-background-dark);
  font-weight: 600;
}

[data-theme="dark"] .nav-link.nav-cta:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-background-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-fast);
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-normal);
  margin-left: var(--space-md);
}

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

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-light);
  transition: all var(--transition-normal);
}

.theme-toggle:hover svg {
  color: var(--color-primary);
  transform: rotate(180deg);
}

.theme-toggle[data-theme="dark"] svg.sun-icon {
  opacity: 0;
  transform: rotate(180deg);
}

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

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

.theme-toggle[data-theme="light"] svg.moon-icon {
  opacity: 0;
  transform: rotate(180deg);
}

.theme-toggle svg {
  position: absolute;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* Hero Section */
.hero {
  padding: 120px 0 var(--space-4xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

.hero-greeting {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.hero-name {
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.6s ease-out;
}

.hero-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-description {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  max-width: 90%;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 0.6s ease-out 0.4s both;
}

.image-container {
  position: relative;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.image-backdrop {
  position: absolute;
  top: -20px;
  left: -20px;
  width: calc(100% + 40px);
  height: calc(100% + 40px);
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
  border-radius: 50%;
  z-index: -1;
  opacity: 0.1;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--color-text-lighter);
  font-size: 0.875rem;
  animation: fadeIn 0.6s ease-out 0.8s both;
}

.scroll-line {
  width: 2px;
  height: 40px;
  background-color: var(--color-text-lighter);
  margin: 0 auto var(--space-sm);
  opacity: 0.5;
  animation: scrollLine 1.2s ease-in-out infinite;
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-weight: 500;
  border-radius: 50px;
  text-decoration: none;
  transition: all var(--transition-normal);
  font-family: var(--font-primary);
  cursor: pointer;
  border: none;
  font-size: 1rem;
  /* Mobile-friendly touch targets */
  min-height: 44px;
  min-width: 120px;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

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

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

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

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

/* Dark mode button improvements */
[data-theme="dark"] .btn-secondary {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-background-dark);
}

.btn-large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.125rem;
}

/* About Section */
.about {
  padding: var(--space-4xl) 0;
  background-color: var(--color-background-alt);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-4xl);
}

.expertise-card {
  background-color: var(--color-background);
  padding: var(--space-2xl);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border-light);
}

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

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

.expertise-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.expertise-card p {
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.skills-section {
  text-align: center;
}

.skills-section h3 {
  margin-bottom: var(--space-2xl);
  color: var(--color-primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.skill-item {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-lg);
  background-color: var(--color-background);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border-light);
  aspect-ratio: 1;
}

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

.skill-item img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: grayscale(0.2);
  transition: filter var(--transition-normal);
}

.skill-item:hover img {
  filter: grayscale(0);
}

/* Work Section */
.work {
  padding: var(--space-4xl) 0;
}

.projects-grid {
  display: grid;
  gap: var(--space-3xl);
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  background-color: var(--color-background);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border-light);
}

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

.project-card:nth-child(even) {
  direction: rtl;
}

.project-card:nth-child(even) .project-content {
  direction: ltr;
}

.project-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 10, 10, 0.95) 0%, rgba(26, 26, 26, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

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

.project-links {
  display: flex;
  gap: var(--space-lg);
}

.project-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  color: white;
  border-radius: 50px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.project-link:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  color: white;
}

.project-content {
  padding: var(--space-2xl);
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.project-category {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-background-alt);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

.project-year {
  color: var(--color-text-lighter);
  font-weight: 500;
}

.project-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.project-description {
  margin-bottom: var(--space-lg);
  color: var(--color-text-light);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-tag {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-background-alt);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

/* Clients Section */
.clients {
  padding: var(--space-4xl) 0;
  background-color: var(--color-background-alt);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2xl);
  max-width: 1000px;
  margin: 0 auto;
}

.client-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  background-color: var(--color-background);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border-light);
  aspect-ratio: 3/2;
}

.client-logo:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.client-logo img {
  max-width: 80%;
  max-height: 60px;
  object-fit: contain;
  filter: grayscale(0.3);
  transition: filter var(--transition-normal);
}

.client-logo:hover img {
  filter: grayscale(0);
}

/* Contact Section */
.contact {
  padding: var(--space-4xl) 0;
}

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

.contact-info {
  margin-top: var(--space-2xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-icon {
  font-size: 1.5rem;
  margin-top: var(--space-xs);
}

.contact-item span {
  display: block;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.contact-item a, .contact-item p {
  color: var(--color-text-light);
  margin-bottom: 0;
}

.contact-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: flex-start;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: white;
  padding: var(--space-3xl) 0 var(--space-2xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-2xl);
}

.footer-text h3 {
  color: white;
  margin-bottom: var(--space-sm);
}

.footer-text p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  margin-bottom: 0;
}

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

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

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

@keyframes scrollLine {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.5;
  }
  50% {
    transform: translateY(20px);
    opacity: 1;
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }
  
  .hero-image {
    order: -1;
  }
  
  .image-container {
    width: 300px;
    height: 300px;
  }
  
  .project-card {
    grid-template-columns: 1fr;
  }
  
  .project-card:nth-child(even) {
    direction: ltr;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-2xl);
    gap: var(--space-xl);
    transform: translateY(-100vh);
    transition: transform var(--transition-normal);
    border-bottom: 1px solid var(--color-border-light);
  }
  
  .nav-links.active {
    transform: translateY(0);
  }
  
  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }
  
  .theme-toggle {
    margin-left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .hero {
    padding: 100px 0 var(--space-3xl);
    min-height: auto;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
    max-width: 300px;
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    gap: var(--space-lg);
  }
  
  .project-title {
    font-size: 1.5rem;
  }
  
  .project-content {
    padding: var(--space-xl);
  }
  
  .clients-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-xl);
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .section-container {
    padding: 0 var(--space-md);
  }
  
  .nav-container {
    padding: 0 var(--space-md);
  }
  
  .hero-description {
    max-width: 100%;
  }
  
  .image-container {
    width: 250px;
    height: 250px;
  }
  
  .project-meta {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
  }
  
  .contact-cta {
    align-items: stretch;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  /* Enhanced mobile touch targets */
  .nav-link, .theme-toggle, .nav-toggle {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Better mobile typography */
  .hero-name {
    font-size: clamp(2rem, 8vw, 3rem);
    line-height: 1.1;
  }
  
  .hero-title {
    font-size: clamp(1.25rem, 5vw, 1.75rem);
  }
  
  .hero-description {
    font-size: 1rem;
    line-height: 1.5;
  }
  
  /* Improved mobile cards */
  .expertise-card, .skill-item, .client-logo {
    padding: var(--space-lg);
    min-height: 60px;
  }
  
  /* Mobile scroll performance */
  .hero, .about, .work, .clients, .contact {
    scroll-margin-top: 80px;
  }
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.4s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Enhanced transitions for theme switching */
*, *::before, *::after {
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Smooth theme transition animation */
body.theme-transitioning * {
  transition: all 0.2s ease !important;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}

/* Dark mode specific enhancements */
[data-theme="dark"] .navbar {
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .navbar.scrolled {
  background-color: rgba(10, 10, 10, 0.98);
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3);
}

[data-theme="dark"] .image-backdrop {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
}

[data-theme="dark"] .project-overlay {
  background: linear-gradient(135deg, rgba(10, 10, 10, 0.95) 0%, rgba(26, 26, 26, 0.9) 100%);
}

/* Enhanced card styling for dark mode */
[data-theme="dark"] .expertise-card,
[data-theme="dark"] .skill-item,
[data-theme="dark"] .project-card,
[data-theme="dark"] .client-logo {
  background-color: var(--color-background-alt);
  border-color: var(--color-border);
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
}

[data-theme="dark"] .expertise-card:hover,
[data-theme="dark"] .skill-item:hover,
[data-theme="dark"] .project-card:hover {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
  border-color: var(--color-accent);
}

/* Dark mode image filters for better visibility */
[data-theme="dark"] .client-logo {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.9) 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .client-logo img {
  filter: brightness(0.8) contrast(1.3) saturate(1.1);
  mix-blend-mode: multiply;
}

/* Special handling for SVG logos in dark mode */
[data-theme="dark"] .client-logo img[src*=".svg"] {
  filter: brightness(0.6) contrast(1.5) saturate(1.2);
  mix-blend-mode: normal;
}

/* Special handling for PNG logos that might have transparency */
[data-theme="dark"] .client-logo img[src*=".png"] {
  filter: brightness(0.7) contrast(1.4) saturate(1.1) drop-shadow(0 0 1px rgba(0,0,0,0.3));
  mix-blend-mode: multiply;
}

[data-theme="dark"] .client-logo:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 250, 252, 0.95) 100%);
  border-color: var(--color-accent);
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
  transform: translateY(-4px);
}

[data-theme="dark"] .client-logo:hover img {
  filter: brightness(0.6) contrast(1.5) saturate(1.3);
}

[data-theme="dark"] .client-logo:hover img[src*=".svg"] {
  filter: brightness(0.5) contrast(1.6) saturate(1.3);
}

[data-theme="dark"] .client-logo:hover img[src*=".png"] {
  filter: brightness(0.6) contrast(1.5) saturate(1.2) drop-shadow(0 0 2px rgba(0,0,0,0.4));
}

[data-theme="dark"] .skill-item img {
  filter: brightness(1.1) contrast(0.9) grayscale(0.1);
}

[data-theme="dark"] .skill-item:hover img {
  filter: brightness(1.2) contrast(1) grayscale(0);
}

/* Dark mode contact section improvements */
[data-theme="dark"] .contact-item {
  background-color: var(--color-background-alt);
  padding: var(--space-lg);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

/* Dark mode section tag improvements */
[data-theme="dark"] .section-tag {
  background-color: var(--color-accent);
  color: var(--color-background-dark);
  box-shadow: 0 4px 8px rgba(96, 165, 250, 0.3);
}

[data-theme="dark"] .footer {
  background-color: var(--color-background-alt);
}

[data-theme="dark"] .footer h3,
[data-theme="dark"] .footer-links a {
  color: var(--color-primary);
}

[data-theme="dark"] .footer-text p,
[data-theme="dark"] .footer-bottom p {
  color: var(--color-text-light);
}

[data-theme="dark"] .footer-links a:hover {
  color: var(--color-accent);
}

/* Light mode navbar */
[data-theme="light"] .navbar {
  background-color: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
}

/* Custom scrollbar with theme support */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-background-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-lighter);
}