/* Base styles */
:root {
  --color-primary-50: #f5f3ff;
  --color-primary-100: #ede9fe;
  --color-primary-200: #ddd6fe;
  --color-primary-300: #c4b5fd;
  --color-primary-400: #a78bfa;
  --color-primary-500: #8b5cf6;
  --color-primary-600: #7c3aed;
  --color-primary-700: #6d28d9;
  --color-primary-800: #5b21b6;
  --color-primary-900: #4c1d95;
  
  --color-secondary-50: #fdf2f8;
  --color-secondary-100: #fce7f3;
  --color-secondary-200: #fbcfe8;
  --color-secondary-300: #f9a8d4;
  --color-secondary-400: #f472b6;
  --color-secondary-500: #ec4899;
  --color-secondary-600: #db2777;
  --color-secondary-700: #be185d;
  
  --color-accent-50: #eff6ff;
  --color-accent-100: #dbeafe;
  --color-accent-200: #bfdbfe;
  --color-accent-300: #93c5fd;
  --color-accent-400: #60a5fa;
  --color-accent-500: #3b82f6;
  --color-accent-600: #2563eb;
  
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-heading: 'Rubik', var(--font-sans);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --transition-base: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Light mode (default) */
  --bg-primary: #ffffff;
  --bg-secondary: var(--color-gray-50);
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --border-color: var(--color-gray-200);
}

/* Dark mode */
[data-theme="dark"] {
  --bg-primary: var(--color-gray-900);
  --bg-secondary: var(--color-gray-800);
  --text-primary: var(--color-gray-50);
  --text-secondary: var(--color-gray-300);
  --border-color: var(--color-gray-700);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  transition: var(--transition-base);
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
  font-family: inherit;
}

input, textarea {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

/* Animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 0.3;
    transform: scale(1.1);
  }
}

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

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: var(--spacing-6) 0;
  transition: var(--transition-base);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  padding: var(--spacing-3) 0;
}

[data-theme="dark"] .header.scrolled {
  background-color: rgba(31, 41, 55, 0.8);
}

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

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--color-primary-600);
}

/* Navigation */
.nav-desktop {
  display: none;
}

.nav-list {
  display: flex;
  gap: var(--spacing-8);
}

.nav-link {
  font-weight: 500;
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary-600);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-600);
  transition: width 0.3s ease;
}

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

/* Mobile menu */
.menu-toggle {
  width: 30px;
  height: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-6);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  z-index: 99;
}

.nav-mobile.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

/* Hero section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--spacing-20) 0 var(--spacing-16);
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  position: relative;
  overflow: hidden;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-12);
}

.hero-text {
  text-align: center;
  max-width: 600px;
}

.subtitle {
  font-weight: 600;
  color: var(--color-primary-600);
  margin-bottom: var(--spacing-4);
  font-size: 1.125rem;
}

.title {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  line-height: 1.2;
}

.description {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-6);
  color: var(--text-secondary);
}

.sub-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-8);
  color: var(--text-secondary);
}

/* Buttons */
.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: center;
  margin-bottom: var(--spacing-8);
}

.button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-weight: 500;
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  font-size: 1rem;
}

.button-primary {
  background-color: var(--color-primary-600);
  color: white;
}

.button-primary:hover {
  background-color: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.button-outline {
  border: 2px solid var(--color-primary-600);
  color: var(--color-primary-600);
}

.button-outline:hover {
  background-color: var(--color-primary-50);
  transform: translateY(-2px);
}

[data-theme="dark"] .button-outline:hover {
  background-color: var(--color-primary-900);
}

/* Social links */
.social-links {
  display: flex;
  gap: var(--spacing-4);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-gray-100);
  color: var(--text-secondary);
  transition: var(--transition-bounce);
}

.social-link:hover {
  background-color: var(--color-primary-100);
  color: var(--color-primary-600);
  transform: translateY(-5px) rotate(8deg);
}

[data-theme="dark"] .social-link {
  background-color: var(--color-gray-800);
}

[data-theme="dark"] .social-link:hover {
  background-color: var(--color-primary-900);
}

/* Sections */
.section {
  padding: var(--spacing-16) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

.section-line {
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--color-primary-500), var(--color-secondary-500));
  margin: 0 auto;
  border-radius: var(--radius-full);
}

/* About section */
.about {
  background: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  align-items: center;
}

.about-text {
  flex: 1;
  max-width: 600px;
}

.about-text p {
  margin-bottom: var(--spacing-4);
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* Skills */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  margin-top: var(--spacing-6);
}

.skill-tag {
  display: inline-block;
  padding: var(--spacing-2) var(--spacing-4);
  background-color: var(--color-primary-50);
  color: var(--color-primary-600);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition-base);
}

.skill-tag:hover {
  background-color: var(--color-primary-600);
  color: white;
  transform: translateY(-5px);
}

[data-theme="dark"] .skill-tag {
  background-color: var(--color-primary-900);
}

/* Experience cards */
.cards-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
}

.card {
  background-color: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.card-icon {
  width: 80px;
  height: 80px;
  background-color: var(--color-primary-50);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-6);
  color: var(--color-primary-600);
  transition: var(--transition-base);
}

[data-theme="dark"] .card-icon {
  background-color: var(--color-primary-900);
}

.card:hover .card-icon {
  background-color: var(--color-primary-600);
  color: white;
  transform: rotate(10deg) scale(1.1);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

.card-description {
  margin-bottom: var(--spacing-6);
  color: var(--text-secondary);
}

/* Projects */
.projects {
  background-color: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
}

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

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

.project-image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(124, 58, 237, 0.9), rgba(236, 72, 153, 0.7));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.project-links {
  display: flex;
  gap: var(--spacing-4);
}

.project-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: white;
  border-radius: 50%;
  color: var(--color-primary-600);
  transition: var(--transition-bounce);
}

.project-link:hover {
  transform: translateY(-5px);
}

.project-content {
  padding: var(--spacing-6);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-2);
  color: var(--text-primary);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-4);
}

/* Contact */
.contact {
  background-color: var(--bg-primary);
  position: relative;
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  align-items: flex-start;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

.contact-info p {
  margin-bottom: var(--spacing-6);
  color: var(--text-secondary);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  color: var(--text-secondary);
}

.contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary-50);
  border-radius: 50%;
  color: var(--color-primary-600);
}

[data-theme="dark"] .contact-icon {
  background-color: var(--color-primary-900);
}

.contact-form {
  flex: 1;
  width: 100%;
  max-width: 500px;
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary-600);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
  box-shadow: 0 0 0 3px var(--color-primary-900);
}

/* Footer */
.footer {
  background-color: var(--color-gray-900);
  color: white;
  padding: var(--spacing-12) 0;
  position: relative;
  overflow: hidden;
}

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2rem;
  color: var(--color-primary-400);
}

.footer-social {
  display: flex;
  gap: var(--spacing-4);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transition: var(--transition-bounce);
}

.footer-social-link:hover {
  background-color: var(--color-primary-500);
  transform: translateY(-5px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-text {
  margin-bottom: var(--spacing-4);
  font-size: 1.125rem;
}

.footer-copyright {
  color: var(--color-gray-400);
  font-size: 0.875rem;
}

/* Responsive */
@media (min-width: 768px) {
  .nav-desktop {
    display: block;
  }
  
  .menu-toggle {
    display: none;
  }
  
  .hero-content {
    flex-direction: row;
    text-align: left;
  }
  
  .hero-text {
    text-align: left;
  }
  
  .button-group {
    justify-content: flex-start;
  }
  
  .cards-container {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-content {
    flex-direction: row;
  }
}

@media (max-width: 767px) {
  .title {
    font-size: 2.5rem;
  }
  
  .description {
    font-size: 1.25rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

/* Image badge styles */
.hero-image {
  position: relative;
  flex-shrink: 0;
  width: 100%;
  max-width: 400px;
}
.image-container {
 position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  aspect-ratio: 1;
  background-color: var(--bg-secondary);
}
.image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.image-badge {
  position: absolute;
  bottom: -5px;
  right: -5px;
  width: 35px;
  height: 35px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: var(--shadow-md);
  transition: var(--transition-bounce);
  z-index: 10;
}

.image-badge svg {
  width: 16px;
  height: 16px;
}

.image-badge:hover {
  transform: rotate(15deg) scale(1.1);
}

[data-theme="dark"] .image-badge {
  border: 2px solid var(--color-gray-800);
}