/* Base Styles */
:root {
  --accent-color: #FF8A00;
  --text-color: #333333;
  --text-color-secondary: #666666;
  --background-color: #ffffff;
  --background-secondary: #f9f9f9;
  --card-background: #ffffff;
  --border-color: #eeeeee;
  --shadow-color: rgba(0, 0, 0, 0.05);
  --header-height: 80px;
}

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

body {
  font-family: 'Poppins', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 15px;
  color: var(--text-color);
}

p {
  margin-bottom: 15px;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--accent-color);
  opacity: 0.8;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.section-padding {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  position: relative;
  display: inline-block;
  margin-bottom: 20px;
}

.section-title p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--text-color-secondary);
}

.accent-color {
  color: var(--accent-color);
}

.accent-link {
  color: var(--accent-color);
  font-weight: 600;
}

/* Color Switcher */
.color-switcher {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  background-color: var(--card-background);
  border-radius: 5px 0 0 5px;
  box-shadow: 0 0 15px var(--shadow-color);
  padding: 10px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.color-option {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.color-option:hover {
  transform: scale(1.2);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--background-color);
  box-shadow: 0 2px 10px var(--shadow-color);
  z-index: 100;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 5px 20px var(--shadow-color);
}

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

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.header-logo a {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-color);
}

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

.nav-menu {
  margin-right: 20px;
}

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

.nav-link {
  padding: 10px 15px;
  color: var(--text-color);
  font-weight: 500;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 70%;
}

.theme-toggle {
  display: flex;
  align-items: center;
  margin-right: 15px;
}

.light-mode-btn,
.dark-mode-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  padding: 5px;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.light-mode-btn.active,
.dark-mode-btn.active {
  opacity: 1;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.nav-toggle span:nth-child(1) {
  top: 0;
}

.nav-toggle span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.nav-toggle span:nth-child(3) {
  bottom: 0;
}

.nav-toggle.active span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* Hero Section */
.hero-section {
  height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--background-color);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding-top: var(--header-height);
}

.hero-title {
  font-size: 72px;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards;
  animation-delay: 0.3s;
}

.hero-description {
  font-size: 24px;
  color: var(--text-color-secondary);
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards;
  animation-delay: 0.6s;
}

.hero-social {
  display: flex;
  justify-content: center;
  gap: 15px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards;
  animation-delay: 0.9s;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--background-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
  font-size: 18px;
  transition: all 0.3s ease;
}

.social-icon:hover {
  background-color: var(--accent-color);
  color: #ffffff;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--text-color-secondary);
}

.about-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.info-item h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-color-secondary);
  margin-bottom: 5px;
}

.info-item p {
  font-size: 16px;
  color: var(--text-color);
  margin-bottom: 0;
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.service-item {
  background-color: var(--card-background);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px var(--shadow-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px var(--shadow-color);
}

.service-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-item h3 {
  font-size: 20px;
  margin-bottom: 15px;
}

.service-item p {
  color: var(--text-color-secondary);
  margin-bottom: 0;
}

/* Projects Section */
.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
}

.filter-btn {
  background: none;
  border: none;
  padding: 8px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-color-secondary);
  cursor: pointer;
  border-radius: 30px;
  transition: all 0.3s ease;
}

.filter-btn.active,
.filter-btn:hover {
  background-color: var(--accent-color);
  color: #ffffff;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.project-card {
  background-color: var(--card-background);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px var(--shadow-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px var(--shadow-color);
}

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

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.project-content {
  padding: 20px;
}

.project-title {
  font-size: 20px;
  margin-bottom: 10px;
}

.project-description {
  color: var(--text-color-secondary);
  margin-bottom: 15px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 15px;
}

.project-tech span {
  background-color: var(--background-secondary);
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 15px;
}

.project-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-color);
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
}

.contact-info {
  background-color: var(--card-background);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px var(--shadow-color);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--background-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  color: var(--accent-color);
  font-size: 18px;
}

.contact-text h4 {
  font-size: 18px;
  margin-bottom: 5px;
}

.contact-text p {
  color: var(--text-color-secondary);
  margin-bottom: 0;
}

.contact-social {
  display: flex;
  gap: 10px;
  margin-top: 30px;
}

.contact-form {
  background-color: var(--card-background);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 20px var(--shadow-color);
}

.form-group {
  margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-family: 'Poppins', sans-serif;
  font-size: 16px;
  color: var(--text-color);
  background-color: var(--background-color);
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.form-group textarea {
  height: 150px;
  resize: none;
}

.submit-btn {
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: 5px;
  padding: 12px 30px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.submit-btn:hover {
  background-color: var(--accent-color);
  opacity: 0.9;
}

/* Footer */
.footer {
  background-color: var(--background-secondary);
  padding: 30px 0;
  text-align: center;
}

.footer-content p {
  margin-bottom: 0;
  color: var(--text-color-secondary);
}

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

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Responsive Styles */
@media (max-width: 992px) {
  .section-padding {
    padding: 80px 0;
  }
  
  .hero-title {
    font-size: 60px;
  }
  
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  
  .hero-title {
    font-size: 48px;
  }
  
  .hero-description {
    font-size: 20px;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--background-color);
    padding: 20px;
    box-shadow: 0 5px 10px var(--shadow-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: center;
  }
  
  .nav-link {
    padding: 10px 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .section-padding {
    padding: 50px 0;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-description {
    font-size: 18px;
  }
  
  .section-title h2 {
    font-size: 30px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
}