/* Base Styles & Variables */
:root {
  /* Light Theme Colors */
  --primary-color: #4f46e5;
  --secondary-color: #7c3aed;
  --accent-color: #2563eb;
  --background-color: #ffffff;
  --text-color: #333333;
  --heading-color: #1f2937;
  --border-color: #e5e7eb;
  --card-bg: #f9fafb;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s ease;
}

.dark-theme {
  /* Dark Theme Colors */
  --primary-color: #818cf8;
  --secondary-color: #a78bfa;
  --accent-color: #60a5fa;
  --background-color: #111827;
  --text-color: #d1d5db;
  --heading-color: #f3f4f6;
  --border-color: #374151;
  --card-bg: #1f2937;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: var(--transition);
  scroll-behavior: smooth;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.5rem;
  color: var(--heading-color);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-color);
  opacity: 0.8;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.primary-btn:hover {
  background-color: #4338ca;
  transform: translateY(-3px);
  box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.3);
}

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

.secondary-btn:hover {
  background-color: #6d28d9;
  transform: translateY(-3px);
  box-shadow: 0 10px 15px -3px rgba(124, 58, 237, 0.3);
}

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-color);
  box-shadow: var(--shadow);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.logo h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.logo span {
  color: var(--secondary-color);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
}

.nav-item {
  margin: 0 1rem;
}

.nav-link {
  text-decoration: none;
  color: var(--heading-color);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

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

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

.theme-toggle {
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--heading-color);
  margin-right: 1rem;
  transition: var(--transition);
}

.theme-toggle:hover {
  color: var(--primary-color);
  transform: rotate(15deg);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--heading-color);
  margin: 3px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
  z-index: 0;
}

.hero-content {
  text-align: center;
  z-index: 1;
  max-width: 800px;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 3rem;
  color: var(--heading-color);
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

.wave {
  animation: wave 2s infinite;
  display: inline-block;
}

.rocket {
  animation: bounce 2s infinite;
  display: inline-block;
}

/* Services Section */
.services {
  padding: 5rem 0;
  background-color: var(--background-color);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.service-card {
  background-color: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.service-card .icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  color: var(--heading-color);
  margin-bottom: 1rem;
}

.service-card p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.learn-more {
  background: none;
  border: none;
  color: var(--primary-color);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.learn-more:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* Portfolio Section */
.portfolio {
  padding: 5rem 0;
  background-color: var(--background-color);
}

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

.portfolio-card {
  background-color: var(--card-bg);
  border-radius: 15px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.portfolio-img {
  height: 200px;
  overflow: hidden;
}

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

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

.portfolio-info {
  padding: 1.5rem;
}

.portfolio-info h3 {
  font-size: 1.3rem;
  color: var(--heading-color);
  margin-bottom: 0.5rem;
}

.portfolio-info p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

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

/* About Section */
.about {
  padding: 5rem 0;
  background-color: var(--background-color);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

.skills h3 {
  margin-bottom: 1rem;
  color: var(--heading-color);
}

.skills-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.skill-badge {
  background-color: var(--primary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
}

.profile-placeholder {
  width: 100%;
  height: 350px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 5rem;
}

/* Testimonials Section */
.testimonials {
  padding: 5rem 0;
  background-color: var(--card-bg);
}

.testimonials-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--background-color);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-5px);
}

.testimonial-card p {
  font-style: italic;
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 2rem;
}

.testimonial-card p::before {
  content: '"';
  font-size: 4rem;
  position: absolute;
  left: -0.5rem;
  top: -1.5rem;
  color: var(--primary-color);
  opacity: 0.2;
  font-family: Georgia, serif;
}

.testimonial-card h4 {
  text-align: right;
  color: var(--heading-color);
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background-color: var(--background-color);
}

.contact-container {
  display: flex;
  justify-content: center;
}

.contact-form {
  width: 100%;
  max-width: 600px;
  background-color: var(--card-bg);
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--heading-color);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  display: none;
}

.form-message.success {
  background-color: rgba(34, 197, 94, 0.2);
  color: #166534;
  display: block;
}

.form-message.error {
  background-color: rgba(239, 68, 68, 0.2);
  color: #7f1d1d;
  display: block;
}

/* WhatsApp Chat Button */
.whatsapp-chat {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition);
}

.whatsapp-chat:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 15px rgba(37, 211, 102, 0.6);
}

/* Footer */
.footer {
  background-color: var(--heading-color);
  color: white;
  padding: 3rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-logo h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: white;
}

.footer-logo-img {
  max-width: 150px;
  height: auto;
  margin-bottom: 1rem;
}

.footer-logo span {
  color: var(--secondary-color);
}

.footer-logo p {
  opacity: 0.8;
}

.footer-contact {
  color: #d1d5db;
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

.footer-contact i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.footer-links h3,
.social-links h3 {
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 0.75rem;
}

.footer-links ul li a {
  color: #d1d5db;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links ul li a:hover {
  color: var(--primary-color);
  padding-left: 5px;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  color: white;
  font-size: 1.5rem;
  transition: var(--transition);
}

.social-icons a:hover {
  color: var(--primary-color);
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.back-to-top {
  color: white;
  font-size: 1.2rem;
  transition: var(--transition);
}

.back-to-top:hover {
  color: var(--primary-color);
  transform: translateY(-3px);
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

@keyframes wave {
  0% { transform: rotate(0deg); }
  10% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); }
  40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
  60% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

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

/* Animation Classes */
section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

section.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media screen and (max-width: 992px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .about-image {
    order: -1;
  }
}

@media screen and (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--background-color);
    width: 100%;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
    padding: 2rem 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
  }
  
  .nav-item {
    margin: 1rem 0;
  }
  
  .theme-toggle {
    margin-right: 1.5rem;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .portfolio-buttons {
    flex-direction: column;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media screen and (max-width: 576px) {
  .nav-container {
    padding: 1rem;
  }
  
  .hero {
    padding: 0 1rem;
  }
  
  .contact-form {
    padding: 1.5rem;
  }
  
  .whatsapp-chat {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    bottom: 1.5rem;
    right: 1.5rem;
  }
}