/* Modern CSS Variables */
:root {
  --primary: #00d1b2;
  --primary-dark: #00b8a0;
  --dark: #121212;
  --dark-light: #1e1e1e;
  --text: #ffffff;
  --text-secondary: #b0b0b0;
  --card-bg: #1e1e1e;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 60px 0;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
  color: var(--primary);
}

h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
}

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

/* Button Styles */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--primary);
  color: var(--dark);
  border: none;
  border-radius: 30px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

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

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

/* Header & Navigation */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  z-index: 1000;
  transition: var(--transition);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo img {
  height: 50px;
  width: auto;
}

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

.nav-menu li {
  margin-left: 20px;
}

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

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

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

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

.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
}

.bar {
  height: 3px;
  width: 100%;
  background-color: var(--text);
  border-radius: 10px;
  transition: var(--transition);
}

/* Hero Section */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(18, 18, 18, 0.9), rgba(18, 18, 18, 0.9)), url('image/bkg1.jpg') no-repeat center center/cover;
  padding: 80px 20px 40px;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--primary), #6c63ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  margin-bottom: 2rem;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--dark-light);
  color: var(--text);
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-icons a:hover {
  background-color: var(--primary);
  color: var(--dark);
  transform: translateY(-5px);
}

/* Gallery Section */
.gallery {
  background-color: var(--dark-light);
  padding: 60px 0;
}

.gallery-header {
  text-align: center;
  margin-bottom: 40px;
}

.gallery-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.tab-button {
  padding: 10px 20px;
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--text);
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  font-size: 0.9rem;
}

.tab-button.active, .tab-button:hover {
  background-color: var(--primary);
  color: var(--dark);
}

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

.gallery-category {
  display: none;
}

.gallery-category.active {
  display: grid;
  animation: fadeIn 0.5s ease;
}

.product-card {
  background-color: var(--card-bg);
  border-radius: 15px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.product-image-container {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.product-card:hover .product-image {
  transform: scale(1.05);
}

.product-info {
  padding: 20px;
}

.product-title {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--primary);
}

.product-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* About Section */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-features {
  margin-top: 20px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  margin-bottom: 15px;
  display: flex;
  align-items: flex-start;
}

.feature-list li i {
  color: var(--primary);
  margin-right: 15px;
  font-size: 1.2rem;
  margin-top: 3px;
}

.about-image {
  border-radius: 10px;
  overflow: hidden;
  height: 300px;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Contact Section */
.contact {
  background-color: var(--dark-light);
  padding: 60px 0;
}

.contact-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-form {
  background-color: var(--card-bg);
  padding: 25px;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px;
  background-color: var(--dark);
  border: 1px solid #333;
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  transition: var(--transition);
  font-size: 1rem;
}

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

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-details p {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.contact-details i {
  margin-right: 15px;
  color: var(--primary);
  width: 20px;
}

.map-container {
  border-radius: 10px;
  overflow: hidden;
  height: 200px;
}

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

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Design - Mobile First Approach */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 80%;
    height: calc(100vh - 70px);
    background-color: var(--dark-light);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: 50px;
    transition: var(--transition);
    z-index: 100;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    margin: 20px 0;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 250px;
  }
  
  .gallery-tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .tab-button {
    width: 100%;
    max-width: 250px;
  }
}

@media (min-width: 769px) {
  section {
    padding: 80px 0;
  }
  
  h1 {
    font-size: 3.5rem;
  }
  
  h2 {
    font-size: 2.5rem;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .about-content {
    flex-direction: row;
    gap: 50px;
  }
  
  .about-image {
    height: 400px;
  }
  
  .contact-container {
    flex-direction: row;
    gap: 50px;
  }
  
  .hero-title {
    font-size: 3.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.5rem;
  }
}

@media (min-width: 992px) {
  .container {
    padding: 0 40px;
  }
  
  .gallery-grid {
    gap: 30px;
  }
  
  .product-image-container {
    height: 250px;
  }
}