/* CSS Variables for Theme */
:root {
  --bg-color: #ffffff;
  --text-color: #333333;
  --accent-color: #2563eb;
  --secondary-bg: #ffffff;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --card-bg: #ffffff;
}

.dark-mode {
  --bg-color: #0f172a;
  --text-color: #f1f5f9;
  --accent-color: #3b82f6;
  --secondary-bg: #0f172a;
  --border-color: #334155;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --card-bg: #1e293b;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Animation Classes */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.fade-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger animations */
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-parent.visible .stagger-item:nth-child(1) {
  transition-delay: 0.1s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-parent.visible .stagger-item:nth-child(2) {
  transition-delay: 0.2s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-parent.visible .stagger-item:nth-child(3) {
  transition-delay: 0.3s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-parent.visible .stagger-item:nth-child(4) {
  transition-delay: 0.4s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-parent.visible .stagger-item:nth-child(5) {
  transition-delay: 0.5s;
  opacity: 1;
  transform: translateY(0);
}

.stagger-parent.visible .stagger-item:nth-child(6) {
  transition-delay: 0.6s;
  opacity: 1;
  transform: translateY(0);
}
/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  box-shadow: var(--shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle:hover {
  transform: translateY(-2px) scale(1.05);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--bg-color);
  box-shadow: var(--shadow);
  z-index: 999;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(0);
}

.navbar.hidden {
  transform: translateY(-100%);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo a:hover {
  color: var(--accent-color);
  transform: translateY(-1px);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--accent-color);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.nav-link.active {
  color: var(--accent-color);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger:hover .bar {
  background-color: var(--accent-color);
}

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 3px 0;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
  padding: 150px 0 100px;
  background-color: var(--bg-color);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: linear-gradient(135deg, var(--accent-color), #7c3aed);
  opacity: 0.1;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--accent-color), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
  from {
    filter: drop-shadow(0 0 10px rgba(37, 99, 235, 0.3));
  }
  to {
    filter: drop-shadow(0 0 20px rgba(37, 99, 235, 0.6));
  }
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.hero-tagline {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--text-color);
  opacity: 0.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 100px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.6s;
}

.btn:hover::before {
  left: 100%;
}

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

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-bg);
  transform: translateY(-3px);
  border-color: var(--accent-color);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
}

.image-container {
  position: relative;
  width: 300px;
  height: 300px;
  animation: imageFloat 4s ease-in-out infinite;
}

@keyframes imageFloat {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.profile-image {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow);
  border: 4px solid var(--accent-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.profile-image:hover {
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.image-placeholder {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-color), #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 5rem;
  box-shadow: var(--shadow);
  animation: placeholderPulse 2s ease-in-out infinite;
}

@keyframes placeholderPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.profile-image + .image-placeholder {
  display: none;
}

/* Sections Common */
section {
  padding: 100px 0;
  background-color: var(--bg-color);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 60px;
  height: 4px;
  background-color: var(--accent-color);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
  animation: lineExpand 1s ease-out;
}

@keyframes lineExpand {
  from {
    width: 0;
  }
  to {
    width: 60px;
  }
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.about-tech h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.tech-item {
  background-color: var(--card-bg);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.tech-item:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);  
  background-color: var(--accent-color);
  color: white;
}

/* Resume Download Button */
.resume-btn {
  background-color: var(--accent-color);
  color: #fff;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

/* Hover effect */
.resume-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
  background-color: #1755b7; /* slightly brighter accent for hover */
}

/* Dark mode compatibility */
.dark-mode .resume-btn {
  background-color: var(--accent-color);
  color: #fff;
  box-shadow: var(--shadow);
}

.dark-mode .resume-btn:hover {
  background-color: #60a5fa; /* lighter hover in dark mode */
}
/* Button wrapper alignment */
.resume-btn-wrapper {
  display: flex;
  justify-content: center; /* center horizontally on desktop */
  margin-top: 2rem;
}

/* Responsive for mobile */
@media (max-width: 768px) {
  .resume-btn-wrapper {
    justify-content: center; /* stays centered */
    width: 100%;
  }

  .resume-btn {
    width: 80%; /* make button take more space on smaller screens */
    max-width: 300px; /* prevent it from being too wide */
  }
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-card {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(37, 99, 235, 0.1),
    transparent
  );
  transition: left 0.6s;
}

.skill-card:hover::before {
  left: 100%;
}

.skill-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.skill-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card:hover .skill-icon {
  transform: scale(1.2) rotate(5deg);
}

.skill-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}



.project-buttons {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
}

.project-buttons .btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 0.5rem;
    transition: transform 0.2s;
}

.project-buttons .btn:hover {
    transform: translateY(-2px);
}

.live-btn {
    background-color: var(--primary);
    color: #fff;
}

.code-btn {
    background-color: var(--secondary);
    color: #fff;
}



/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
}

.project-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  position: relative;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-color), transparent);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

.project-card:hover::before {
  opacity: 0.1;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.project-image {
  height: 200px;
  background-color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(0, 0, 0, 0.1), transparent);
}

.project-image .image-placeholder {
  width: 80px;
  height: 80px;
  font-size: 2rem;
  animation: none;
}

.project-card:hover .project-image .image-placeholder {
  animation: spin 1s ease-in-out;
}

@keyframes spin {
  0% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(180deg) scale(1.1);
  }
  100% {
    transform: rotate(360deg) scale(1);
  }
}

.project-content {
  padding: 1.5rem;
  position: relative;
  z-index: 2;
}

.project-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-content h3 {
  color: var(--accent-color);
}

.project-content p {
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background-color: var(--secondary-bg);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-tag:hover {
  background-color: var(--accent-color);
  color: white;
  transform: translateY(-2px);
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-item:hover {
  transform: translateX(10px);
}

.contact-item i {
  color: var(--accent-color);
  font-size: 1.2rem;
  width: 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-item:hover i {
  transform: scale(1.2);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--card-bg);
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-color);
  border-radius: 50%;
  transform: scale(0);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: -1;
}

.social-link:hover::before {
  transform: scale(1);
}

.social-link:hover {
  color: white;
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font-family: "Inter", sans-serif;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  background-color: var(--bg-color);
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
}

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

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--accent-color);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.footer-links a:hover::after {
  width: 100%;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), #7c3aed);
  z-index: 1000;
  transition: width 0.1s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    flex-direction: column;
    background-color: var(--bg-color);
    width: 100%;
    text-align: center;
    transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow);
    padding: 2rem 0;
    gap: 1.5rem;
  }

  .nav-menu.active {
    right: 0;
  }

  .hero-container {
    flex-direction: column;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .image-container {
    width: 250px;
    height: 250px;
  }

  .image-placeholder {
    width: 250px;
    height: 250px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .theme-toggle {
    top: auto;
    bottom: 20px;
    right: 20px;
  }
}