/* ==========================================
   MODERN PORTFOLIO - PROFESSIONAL CSS
   ========================================== */

/* ==========================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ========================================== */
:root {
  /* Colors - Vibrant Professional Palette */
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --secondary-color: #06b6d4;
  --accent-color: #a855f7;
  --accent-dark: #9333ea;
  
  /* Neutral Colors */
  --dark-bg: #0f172a;
  --dark-text: #1e293b;
  --light-bg: #f8fafc;
  --light-text: #64748b;
  --white: #ffffff;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --gradient-accent: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-colored: 0 10px 40px rgba(37, 99, 235, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 70px;
}

/* ==========================================
   GLOBAL RESET & BASE STYLES
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-main);
  color: var(--dark-text);
  background-color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
}

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

ul {
  list-style: none;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.gradient-text {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #ffffff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 900;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--dark-bg);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  text-align: center;
  color: var(--light-text);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: all var(--transition-base);
}

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

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--gray-700);
  font-weight: 500;
  position: relative;
  padding: var(--spacing-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger .bar {
  width: 25px;
  height: 3px;
  background-color: var(--dark-bg);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.4) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.4) 0%, transparent 50%);
  animation: gradient-shift 15s ease infinite;
}

@keyframes gradient-shift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

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

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

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

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

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

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.image-placeholder {
  width: 350px;
  height: 350px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-2xl);
  animation: float 6s ease-in-out infinite;
}

.image-placeholder i {
  font-size: 150px;
  color: rgba(255, 255, 255, 0.7);
  display: none; /* Hide icon if present */
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

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

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s infinite;
}

.scroll-indicator a {
  color: var(--white);
  font-size: var(--font-size-2xl);
  opacity: 0.8;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about {
  padding: var(--spacing-3xl) 0;
  background: var(--light-bg);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-2xl);
  align-items: center;
  margin-top: var(--spacing-2xl);
}

.about-image {
  display: flex;
  justify-content: center;
}

.image-frame {
  position: relative;
  width: 280px;
  height: 280px;
}

.profile-placeholder {
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-colored);
  position: relative;
  overflow: hidden;
}

.profile-placeholder::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.profile-placeholder i {
  font-size: 120px;
  color: rgba(255, 255, 255, 0.9);
  z-index: 1;
  display: none; /* Hide icon */
}

.about-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 2;
}

.about-text h3 {
  font-size: var(--font-size-3xl);
  color: var(--dark-bg);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

.about-text p {
  font-size: var(--font-size-lg);
  color: var(--light-text);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  background: var(--gradient-primary);
  border: 2px solid transparent;
}

.stat-item:hover h4,
.stat-item:hover p {
  color: var(--white);
  -webkit-text-fill-color: var(--white);
}

.stat-item h4 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-item p {
  font-size: var(--font-size-sm);
  color: var(--light-text);
  margin: 0;
}

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills {
  padding: var(--spacing-3xl) 0;
  background: var(--white);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.skill-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

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

.skill-icon {
  font-size: var(--font-size-5xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base);
}

.skill-card:hover .skill-icon {
  transform: scale(1.1) rotate(5deg);
}

.skill-card h3 {
  font-size: var(--font-size-xl);
  color: var(--dark-bg);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.skill-card p {
  font-size: var(--font-size-sm);
  color: var(--light-text);
  line-height: 1.6;
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */
.projects {
  padding: var(--spacing-3xl) 0;
  background: var(--light-bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.project-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.project-image {
  position: relative;
  overflow: hidden;
  height: 250px;
}

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

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(6, 182, 212, 0.9));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.project-links {
  display: flex;
  gap: var(--spacing-md);
}

.project-link {
  width: 50px;
  height: 50px;
  background: var(--white);
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  transition: all var(--transition-base);
}

.project-link:hover {
  transform: scale(1.2) rotate(360deg);
  background: var(--primary-color);
  color: var(--white);
}

.project-info {
  padding: var(--spacing-lg);
}

.project-info h3 {
  font-size: var(--font-size-2xl);
  color: var(--dark-bg);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.project-info p {
  font-size: var(--font-size-base);
  color: var(--light-text);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tag {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
  padding: var(--spacing-2xl) 0;
  background: var(--white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

/* Stack form fields vertically and reduce outer padding */
.contact-content .contact-form {
  padding: var(--spacing-lg);
  max-width: none;
  width: 100%;
}

.contact-form form .form-grid {
  display: block;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

/* Make inputs full width and reduce textarea height to shorten form */
.contact-form form .form-group input,
.contact-form form .form-group textarea {
  width: 100%;
}

.contact-form form .form-group textarea {
  min-height: 72px;
}

/* Ensure submit button takes full width when stacked */
.contact-form .btn-primary {
  width: 100%;
  padding: 0.8rem 1rem;
}

.contact-info h3 {
  font-size: var(--font-size-3xl);
  color: var(--dark-bg);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

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

.contact-items {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: var(--font-size-lg);
  color: var(--dark-bg);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.contact-details p,
.contact-details a {
  font-size: var(--font-size-base);
  color: var(--light-text);
}

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

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.social-link {
  width: 45px;
  height: 45px;
  background: var(--light-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--primary-color);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: var(--white);
  transform: translateY(-5px);
}

/* Contact Form */
.contact-form {
  display: block; /* Ensure block layout */
  background: var(--light-bg);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
}

.form-group {
  display: block; /* Ensure block layout */
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.form-group label {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--dark-bg);
  margin-bottom: var(--spacing-xs);
}

.required {
  color: #ef4444;
}

.form-group input,
.form-group textarea {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-main);
  transition: all var(--transition-base);
  background: var(--white);
  box-sizing: border-box; /* Ensure padding doesn't overflow */
}

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

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

.contact-form .btn-primary {
  width: 100%;
  background: var(--gradient-primary);
  color: var(--white);
  justify-content: center;
  margin-top: var(--spacing-md);
}

.contact-form .btn-primary:hover {
  box-shadow: var(--shadow-colored);
}

/* Download Button Animation */
.about-cta .btn-primary {
  animation: pulse-download 2s infinite;
}

@keyframes pulse-download {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 15px rgba(37, 99, 235, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  background: var(--dark-bg);
  color: var(--white);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
}

.footer-content p {
  margin-bottom: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.8);
}

.footer-content i {
  color: #ef4444;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  10%, 30% { transform: scale(1.1); }
  20%, 40% { transform: scale(1); }
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: var(--font-size-xl);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-colored);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

/* Tablet */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-image {
    order: -1;
  }
  
  .image-placeholder {
    width: 280px;
    height: 280px;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --spacing-3xl: 4rem;
    --spacing-2xl: 3rem;
  }
  
  /* Mobile Navigation */
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: var(--header-height);
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    width: 100%;
    text-align: center;
    transition: left var(--transition-base);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg) 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    padding: var(--spacing-md);
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  /* Sections */
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .image-placeholder {
    width: 220px;
    height: 220px;
  }
  
  .image-placeholder i {
    font-size: 100px;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .image-frame {
    width: 200px;
    height: 200px;
  }
  
  .profile-placeholder i {
    font-size: 80px;
  }
}