/* ===== CSS Variables ===== */
:root {
  --primary-color: #00d4aa;
  --secondary-color: #0099ff;
  --dark-color: #1a1a2e;
  --light-color: #f8f9fa;
  --gray-color: #6c757d;
  --white: #ffffff;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  color: var(--dark-color);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--white);
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 0.75rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 56px;
  width: auto;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark-color);
  font-weight: 500;
  font-size: 1.25rem;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: var(--transition);
}

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

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

/* ===== Mobile Menu ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--dark-color);
  border-radius: 3px;
  transition: var(--transition);
}

/* ===== Sections Common ===== */
section {
  min-height: 100vh;
  padding: 100px 2rem 50px;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 1rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-color);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* ===== Animation Classes ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-out {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-out.faded {
  opacity: 0;
  transform: translateY(-20px);
}

/* ===== Hero Section ===== */
#home {
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 50%, #2d2d4a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 153, 255, 0.1) 0%, transparent 50%);
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(2%, 2%); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-title span {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.3rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 212, 170, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

/* ===== About Section ===== */
#about {
  background: var(--white);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--primary-color);
  border-radius: 20px;
  z-index: 0;
}

.about-image img {
  width: 100%;
  border-radius: 20px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow);
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--dark-color);
}

.about-text p {
  color: var(--gray-color);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background: var(--light-color);
  padding: 1.5rem;
  border-radius: 15px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.feature-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  margin: 0;
}

/* ===== Products Section ===== */
#products {
  background: var(--light-color);
}

.single-product {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}


.product-card-main {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
}

.product-card-main:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}


.product-image-main {
  flex-shrink: 0;
  width: 150px;
  height: 150px;
  background: var(--light-color);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.product-image-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-card-main .product-info {
  flex: 1;
  padding: 0;
}

.product-card-main .product-info h3 {
  font-size: 1.8rem;
  margin-bottom: 0.75rem;
  color: var(--dark-color);
}

.product-card-main .product-info p {
  color: var(--gray-color);
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.6;
}

/* ===== Popup Modal ===== */
.popup-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.popup-overlay.active {
  display: flex;
}

.popup-content {
  background: var(--white);
  border-radius: 20px;
  padding: 3rem;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  text-align: center;
  animation: popupFadeIn 0.3s ease;
}

@keyframes popupFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.popup-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  cursor: pointer;
  color: var(--gray-color);
  transition: var(--transition);
}

.popup-close:hover {
  color: var(--dark-color);
}

.popup-image {
  width: 120px;
  height: 120px;
  margin-bottom: 1.5rem;
  object-fit: contain;
}

.popup-content h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--dark-color);
}

.popup-content p {
  color: var(--gray-color);
  margin-bottom: 1rem;
  line-height: 1.8;
  text-align: left;
}

.popup-content .btn {
  margin-top: 1.5rem;
}

/* Responsive for single product */
@media (max-width: 768px) {
  .product-card-main {
    flex-direction: column;
    text-align: center;
  }
  
  .product-image-main {
    width: 120px;
    height: 120px;
  }
}

.product-card {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
  background: var(--light-color);
}

.product-info {
  padding: 1.5rem;
}

.product-info h3 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--dark-color);
}

.product-info p {
  color: var(--gray-color);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.btn-small {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  text-decoration: none;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-small:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
}

/* ===== Vision Section ===== */
#vision {
  background: var(--white);
}

.vision-content {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.vision-text, .mission-text {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--light-color);
  border-radius: 20px;
}

.vision-text h3, .mission-text h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--dark-color);
}

.vision-paragraph, .mission-paragraph {
  color: #888888;
  font-size: 1.4rem;
  line-height: 1.9;
  margin-bottom: 0;
}

/* Responsive for vision section */
@media (max-width: 768px) {
  .vision-paragraph, .mission-paragraph {
    font-size: 1.1rem;
  }
  
  .vision-text h3, .mission-text h3 {
    font-size: 1.6rem;
  }
}

.value-card p {
  font-size: 0.9rem;
  color: var(--gray-color);
  line-height: 1.6;
}

/* ===== Contact Section ===== */
#contact {
  background: linear-gradient(180deg, var(--white) 0%, var(--light-color) 100%);
}

.contact-container {
  max-width: 1000px;
  margin: 0 auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.info-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(0, 153, 255, 0.1));
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.info-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.info-card p, .info-card a {
  color: var(--gray-color);
  text-decoration: none;
  font-size: 1rem;
}

.info-card a:hover {
  color: var(--primary-color);
}

.contact-form {
  background: var(--white);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid #e9ecef;
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

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

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

.submit-btn {
  width: 100%;
  padding: 1.2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 212, 170, 0.4);
}

/* ===== Footer ===== */
footer {
  background: var(--dark-color);
  color: var(--white);
  padding: 2rem;
  text-align: center;
}

.footer-links {
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--white);
  text-decoration: none;
  opacity: 0.7;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--primary-color);
}

footer p {
  opacity: 0.7;
}

/* ===== Responsive Design ===== */
@media (max-width: 992px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image {
    order: -1;
  }

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

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

  .vision-values {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow);
    transform: translateY(-150%);
    transition: var(--transition);
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .menu-toggle {
    display: flex;
  }

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

  .hero-description {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

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

  .contact-form {
    padding: 2rem;
  }

  .vision-values {
    grid-template-columns: 1fr;
  }

  .product-card {
    margin-bottom: 1rem;
  }
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease infinite;
}

.scroll-indicator span {
  display: block;
  width: 25px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  position: relative;
}

.scroll-indicator span::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--primary-color);
  border-radius: 50%;
  animation: scrollDot 2s ease infinite;
}

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

@keyframes scrollDot {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 20px; }
}