:root {
  /* Colors - Light Theme */
  --light-background: #f8f9fa;
  --light-surface: #ffffff;
  --light-text-primary: #212529;
  --light-text-secondary: #6c757d;
  --light-primary: #0d6efd;
  --light-secondary: #6c757d;
  --light-accent: #20c997;
  --light-border: #dee2e6;
  
  /* Colors - Dark Theme */
  --dark-background: #121212;
  --dark-surface: #1e1e1e;
  --dark-text-primary: #f8f9fa;
  --dark-text-secondary: #adb5bd;
  --dark-primary: #3d8bfd;
  --dark-secondary: #6c757d;
  --dark-accent: #20c997;
  --dark-border: #343a40;
  
  /* Set default theme to dark */
  --background: var(--dark-background);
  --surface: var(--dark-surface);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --primary: var(--dark-primary);
  --secondary: var(--dark-secondary);
  --accent: var(--dark-accent);
  --border: var(--dark-border);
  
  /* Typography */
  --font-family-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;
  
  /* Breakpoints */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-pill: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.12), 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15), 0 5px 10px rgba(0,0,0,0.05);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Light Theme Class */
.light-theme {
  --background: var(--light-background);
  --surface: var(--light-surface);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --primary: var(--light-primary);
  --secondary: var(--light-secondary);
  --accent: var(--light-accent);
  --border: var(--light-border);
}

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

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

body {
  font-family: var(--font-family-sans);
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-7) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-5);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 3px;
  background-color: var(--accent);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

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

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

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

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-4);
  list-style: none;
}

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

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

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

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

.language-selector {
  margin-left: var(--space-3);
  padding: var(--space-1) var(--space-2);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.language-selector:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--primary);
}

.language-selector option {
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
}

/* Force dark styling for language selector dropdown in dark mode */
body:not(.light-theme) .language-selector {
  color-scheme: dark;
}

body:not(.light-theme) .language-selector option {
  background-color: #1a1a1a !important;
  color: #ffffff !important;
}

body.light-theme .language-selector {
  color-scheme: light;
}

body.light-theme .language-selector option {
  background-color: #ffffff !important;
  color: #000000 !important;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--space-6) 0;
  background: linear-gradient(135deg, #0a0515 0%, #0f0a1a 50%, #1a0d2e 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 70%, rgba(61, 139, 253, 0.08) 0%, transparent 70%),
              radial-gradient(circle at 70% 30%, rgba(32, 201, 151, 0.08) 0%, transparent 70%);
  z-index: 0;
}

.hero-content {
  position: relative;
  max-width: 800px;
  z-index: 1;
  text-align: center;
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-content-wide {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-6);
  background: rgba(30, 30, 30, 0.3);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-text {
  text-align: left;
}

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

.hero-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-points {
  margin-top: var(--space-4);
}

.hero-point {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.hero-point i {
  margin-top: 2px;
  flex-shrink: 0;
}

.hero-point span {
  flex: 1;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: var(--space-3);
  line-height: 1.2;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  animation: gradientFlow 8s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.hero-btns {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}

.about-item {
  text-align: center;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background-color: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.about-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.about-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
}

.service-card {
  background-color: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

/* Portfolio Section */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-filters {
  display: flex;
  gap: var(--space-2);
}

.portfolio-filter-btn {
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn.active {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.portfolio-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-title {
  color: white;
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.portfolio-category {
  color: var(--accent);
  font-size: 0.875rem;
}

/* Skills Section */
.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

.skill-item {
  background-color: var(--surface);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

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

/* Technologies Section */
.tech-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.tech-category {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: 20px;
  background: linear-gradient(45deg, var(--primary-dark), var(--primary));
  color: white;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.tech-category.tech-category-visible {
  opacity: 0.85;
  transform: translateY(0);
}

.tech-category:hover {
  transform: translateY(-2px);
  opacity: 1;
}

.tech-logo-wall {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-5);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.tech-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  filter: grayscale(100%);
  opacity: 0;
  transform: translateY(15px);
  transition: all var(--transition-normal);
}

.tech-logo.tech-logo-visible {
  opacity: 0.6;
  transform: translateY(0);
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  width: 80px;
  height: 80px;
  position: relative;
  overflow: hidden;
}

.tech-logo:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.05);
}

.tech-logo[data-tooltip]:before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: -35px;
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 10px;
  background: var(--dark-surface);
  color: var(--text-primary);
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.tech-logo[data-tooltip]:hover:before {
  opacity: 1;
  visibility: visible;
  bottom: -25px;
}

.tech-logo span {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tech-logo img {
  max-width: 100%;
  max-height: 40px;
  object-fit: contain;
}

/* Contact Section */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--surface);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.contact-form:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.form-group {
  position: relative;
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: var(--space-3);
  background-color: rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(var(--primary-rgb), 0.2);
}

.form-control.is-invalid {
  border-color: var(--error);
}

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

.form-control:focus {
  outline: none;
  border-color: var(--primary);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* Notification System */
.notification {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background-color: var(--dark-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  max-width: 320px;
  border-left: 4px solid var(--primary);
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

.notification.success {
  border-left-color: var(--success);
}

.notification.error {
  border-left-color: var(--error);
}

.notification.info {
  border-left-color: var(--info);
}

.notification-icon {
  margin-right: var(--space-3);
  font-size: 1.25rem;
}

.notification.success .notification-icon {
  color: var(--success);
}

.notification.error .notification-icon {
  color: var(--error);
}

.notification.info .notification-icon {
  color: var(--info);
}

.notification-message {
  flex: 1;
}

/* Logo tooltip */
.logo-tooltip {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--dark-surface);
  color: var(--text);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
  opacity: 0;
  animation: fadeIn 0.3s forwards;
  pointer-events: none;
}

.logo-tooltip::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--dark-surface);
}

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

/* Footer */
.footer {
  background-color: var(--dark-surface);
  padding: var(--space-6) 0 var(--space-4);
  margin-top: var(--space-6);
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at top center, rgba(var(--primary-rgb), 0.1) 0%, transparent 70%);
  z-index: 0;
}

.footer .container {
  position: relative;
  z-index: 1;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.footer-tagline {
  opacity: 0.7;
  margin-top: var(--space-2);
}

.footer h4 {
  font-size: 1.2rem;
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-2);
}

.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--primary);
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact-list li {
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
}

.footer-contact-list li i {
  margin-right: var(--space-2);
  color: var(--primary);
  width: 20px;
  text-align: center;
}

.social-links {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-3px);
}

.language-switch-footer {
  margin-top: var(--space-3);
  display: flex;
  align-items: center;
}

.language-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-1);
  transition: color var(--transition-fast);
}

.language-btn:hover {
  color: var(--primary);
}

.language-divider {
  margin: 0 var(--space-1);
  opacity: 0.5;
}

.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  padding-bottom: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 0.9rem;
}

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

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

.footer-separator {
  margin: 0 var(--space-2);
  opacity: 0.5;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.social-link {
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

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

.footer-nav {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  margin-top: var(--space-3);
}

.footer-link {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.copyright {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.animated {
  opacity: 0;
}

/* Responsive Styles */
@media (max-width: 992px) {
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--surface);
    flex-direction: column;
    align-items: center;
    padding: var(--space-4) 0;
    gap: var(--space-3);
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    z-index: 999;
  }
  
  .nav-links.active {
    transform: translateY(0);
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-btns {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-content-wide {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    text-align: center;
  }
  
  .hero-text {
    text-align: center;
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }
  
  .section {
    padding: var(--space-5) 0;
  }
  
  .portfolio-grid,
  .services-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: var(--space-3);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-content-wide {
    grid-template-columns: 1fr;
    gap: var(--space-3);
    padding: var(--space-4);
  }
  
  .hero-text {
    text-align: center;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }

.mx-auto { margin-left: auto; margin-right: auto; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }