/* Global Styles and Variables */
:root {
  --primary-color: #10b981;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --secondary-color: #3b82f6;
  --accent-color: #ec4899;
  --text-color: #1e293b;
  --text-color-light: #64748b;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --border-radius: 0px;
  --transition-slow: all 0.7s cubic-bezier(0.68, -0.6, 0.32, 1.6);
  --transition-medium: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --gradient: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
  --gradient-hover: linear-gradient(120deg, var(--secondary-color), var(--accent-color));
}

/* Dark Theme */
[data-theme="dark"] {
  --primary-color: #06d6a0;
  --primary-light: #4ade80;
  --primary-dark: #059669;
  --secondary-color: #2563eb;
  --accent-color: #f472b6;
  --text-color: #f1f5f9;
  --text-color-light: #cbd5e1;
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --border-color: #334155;
}

/* Reset and Base Styles with transitions */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: var(--transition-medium);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 10% 20%, 
    rgba(16, 185, 129, 0.05) 0%, 
    transparent 50%),
    radial-gradient(circle at 90% 80%, 
    rgba(59, 130, 246, 0.05) 0%, 
    transparent 60%);
  z-index: -2;
  opacity: 0.8;
  transition: var(--transition-medium);
}

[data-theme="dark"] body::before {
  background: 
    radial-gradient(circle at 10% 20%, 
    rgba(6, 214, 160, 0.07) 0%, 
    transparent 50%),
    radial-gradient(circle at 90% 80%, 
    rgba(37, 99, 235, 0.07) 0%, 
    transparent 60%);
}

/* Canvas for Particles */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  transition: var(--transition-slow);
}

/* Main Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
}

/* Header Styles with dramatic transitions */
header {
  padding: 5rem 0 3rem;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

header::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -20%;
  width: 140%;
  height: 300px;
  background: var(--gradient);
  transform: rotate(-3deg);
  z-index: -1;
  transition: var(--transition-slow);
}

[data-theme="dark"] header::before {
  background: var(--gradient-hover);
}

.logo {
  font-size: 4.5rem;
  font-weight: 800;
  color: white;
  text-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  margin-bottom: 0.5rem;
  transform: perspective(1000px) translateZ(0);
  transition: var(--transition-medium);
}

.logo:hover {
  transform: perspective(1000px) translateZ(30px);
  text-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.tagline {
  font-size: 1.8rem;
  color: white;
  font-weight: 300;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  max-width: 600px;
  margin: 0 auto;
  transition: var(--transition-fast);
}

/* Navigation with 3D effects */
nav {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  background-color: var(--card-bg);
  margin: -2rem auto 4rem;
  max-width: 900px;
  padding: 0.25rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 1rem;
  z-index: 100;
  transform: translateY(-20px);
  transition: var(--transition-medium);
}

nav:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

nav a {
  color: var(--text-color);
  text-decoration: none;
  padding: 1rem 0.5rem;
  font-weight: 600;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition-fast);
}

nav a i {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  transition: var(--transition-medium);
}

nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient);
  transform: translateX(-100%);
  transition: var(--transition-medium);
}

nav a:hover::before {
  transform: translateX(0);
}

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

nav a:hover i {
  transform: translateY(-5px) scale(1.2);
  color: var(--primary-color);
}

/* Sections with animations */
section {
  margin-bottom: 8rem;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.section-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 2.5rem;
  color: var(--text-color);
  display: inline-block;
  position: relative;
  transform: translateZ(0);
  transition: var(--transition-medium);
}

.section-title::before {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-medium);
}

section:hover .section-title::before {
  transform: scaleX(1);
}

/* Card Styles with 3D transitions */
.card {
  background-color: var(--card-bg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition-medium);
  margin-bottom: 2rem;
  position: relative;
  transform: translateZ(0) scale(1);
  z-index: 1;
  border-left: 5px solid transparent;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -5px;
  width: 5px;
  height: 100%;
  background: var(--gradient);
  transform: scaleY(0);
  transform-origin: top;
  transition: var(--transition-medium);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-15px) scale(1.01);
}

.card:hover::before {
  transform: scaleY(1);
}

.card-content {
  padding: 2rem;
  position: relative;
  z-index: 2;
}

.card-title {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  position: relative;
  padding-bottom: 1rem;
  transition: var(--transition-medium);
  letter-spacing: 0.5px;
}

.card-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 3px;
  background: var(--gradient);
  transition: var(--transition-medium);
}

.card:hover .card-title::after {
  width: 100%;
  background: var(--gradient-hover);
}

.card-title i {
  margin-right: 0.75rem;
  color: var(--primary-color);
  transition: var(--transition-fast);
}

.card:hover .card-title i {
  transform: rotate(360deg);
  color: var(--accent-color);
}

/* Project Cards Container with grid animation */
.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  transition: var(--transition-slow);
}

.cards-container:hover {
  gap: 2.5rem;
}

/* Skills Tags with hover animation */
.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.skill-tag {
  background-color: rgba(16, 185, 129, 0.1);
  border-radius: 100px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition-fast);
  z-index: 1;
}

.skill-tag::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-color);
  transform: translateX(-100%);
  z-index: -1;
  transition: var(--transition-medium);
}

.skill-tag:hover {
  color: white;
}

.skill-tag:hover::before {
  transform: translateX(0);
}

.skill-tag i {
  margin-right: 0.5rem;
  transition: var(--transition-fast);
}

.skill-tag:hover i {
  transform: rotate(15deg);
}

/* Tech Icons Grid with hover effects */
.tech-icons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.tech-icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem 1rem;
  background-color: var(--card-bg);
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.tech-icon-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient);
  opacity: 0;
  z-index: -1;
  transition: var(--transition-medium);
}

.tech-icon-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.tech-icon-card:hover::before {
  opacity: 1;
}

.tech-icon-card i {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  transition: var(--transition-medium);
}

.tech-icon-card:hover i {
  color: white;
  transform: scale(1.2);
}

.tech-icon-card span {
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition-medium);
}

.tech-icon-card:hover span {
  color: white;
}

.category-title {
  font-size: 1.8rem;
  margin: 2.5rem 0 1.5rem;
  color: var(--text-color);
  position: relative;
  display: inline-block;
  padding-bottom: 0.5rem;
  transition: var(--transition-medium);
}

.category-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--gradient);
  transition: var(--transition-medium);
}

.category-title:hover::after {
  width: 100%;
}

/* Project Links with pulse effect */
.project-links {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: 100px;
  background: var(--gradient);
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.project-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hover);
  z-index: -1;
  opacity: 0;
  transition: var(--transition-medium);
}

.project-link:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.project-link:hover::before {
  opacity: 1;
}

.project-link i {
  margin-right: 0.75rem;
  transition: var(--transition-fast);
}

.project-link:hover i {
  transform: translateX(-3px);
}

.coming-soon {
  color: var(--text-color-light);
  font-style: italic;
  font-size: 1rem;
  transition: var(--transition-fast);
  padding-left: 10px;
}

/* Contact Section with dynamic hover effects */
.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.contact-link {
  display: flex;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--gradient);
  color: white;
  text-decoration: none;
  border-radius: 100px;
  font-weight: 600;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.contact-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hover);
  z-index: -1;
  opacity: 0;
  transition: var(--transition-medium);
}

.contact-link:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

.contact-link:hover::before {
  opacity: 1;
}

.contact-link i {
  margin-right: 0.75rem;
  font-size: 1.5rem;
  transition: var(--transition-fast);
}

.contact-link:hover i {
  transform: rotate(15deg) scale(1.2);
}

/* Theme Toggle Button with spinning animation */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient);
  border: none;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  color: white;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  transition: var(--transition-slow);
  transform: rotate(0deg);
}

.theme-toggle:hover {
  transform: rotate(180deg);
  background: var(--gradient-hover);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--gradient);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-hover);
}

/* Responsive Design */
@media (max-width: 992px) {
  .logo {
    font-size: 3.5rem;
  }
  
  .tagline {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .cards-container {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
  
  nav {
    grid-template-columns: repeat(3, 1fr);
    max-width: 600px;
  }
  
  nav a:nth-child(4), nav a:nth-child(5) {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  header {
    padding: 4rem 0 2rem;
  }
  
  .logo {
    font-size: 3rem;
  }
  
  .tagline {
    font-size: 1.3rem;
  }
  
  .section-title {
    font-size: 2.2rem;
  }
  
  .cards-container {
    grid-template-columns: 1fr;
  }
  
  .tech-icons-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
  
  .theme-toggle {
    width: 50px;
    height: 50px;
    top: 10px;
    right: 10px;
  }
  
  nav {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 0;
    padding: 0;
  }
  
  nav a {
    padding: 0.75rem 0.25rem;
  }
  
  nav a i {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 1rem;
  }
  
  header {
    padding: 3rem 0 1.5rem;
  }
  
  .logo {
    font-size: 2.5rem;
  }
  
  .tagline {
    font-size: 1.1rem;
  }
  
  nav {
    grid-template-columns: 1fr 1fr;
  }
  
  nav a:last-child {
    grid-column: span 2;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .card-title {
    font-size: 1.5rem;
  }
  
  .contact-links {
    flex-direction: column;
  }
  
  .contact-link, .project-link {
    padding: 0.75rem 1.25rem;
  }
}

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

@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  }
}

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

@keyframes rotateIn {
  from {
    transform: rotateY(90deg);
    opacity: 0;
  }
  to {
    transform: rotateY(0);
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* Animation Classes for JS */
.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-rotate-in {
  animation: rotateIn 0.8s cubic-bezier(0.68, -0.6, 0.32, 1.6) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-slide-in-left {
  animation: slideInLeft 0.8s ease forwards;
}

.animate-slide-in-right {
  animation: slideInRight 0.8s ease forwards;
}

.animate-scale-in {
  animation: scaleIn 0.8s ease forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* Hidden elements for JS reveal */
.hidden {
  opacity: 0;
}

.visible {
  opacity: 1;
}