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

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #007991, #78ffd6);
  color: #333;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  animation: fadeInBody 1s ease-in-out;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* ================= NAVBAR ================= */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 1000;
  color: #fff;
}

/* LOGO */
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 55px;
  height: 55px;
  border-radius: 50%;
  border: 2px solid #fff;
}

.vspaze-heading {
  font-size: 26px;
  font-weight: 800;
}

.nice {
  color: #fff;
}

.eng {
  color: #00bfa6;
}

/* ================= DESKTOP NAV ================= */
.desktop-nav ul {
  display: flex;
  list-style: none;
  gap: 10px;
}

.desktop-nav li a {
  padding: 6px 12px;
  font-weight: 500;
  color: #fff;
  border-radius: 999px;
  transition: all 0.3s ease;
}

.desktop-nav li a:hover {
  background: rgba(90, 220, 200, 0.25);
  box-shadow:
    0 0 8px rgba(90, 220, 200, 0.6),
    0 0 16px rgba(90, 220, 200, 0.4);
}

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

.menu-toggle span {
  width: 26px;
  height: 3px;
  background: #fff;
  border-radius: 3px;
}

/* ================= MOBILE MENU ================= */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 360px;
  height: 100vh;
  background: rgba(8, 5, 5, 0.25);
  backdrop-filter: blur(6px);
  transition: right 0.35s ease;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
}

.mobile-menu.show {
  right: 0;
}

.mobile-header {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
}

.mobile-header h3 {
  color: #ffffff;
  font-size: 22px;
  margin: 0;
}

.mobile-header .close-btn {
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: #ffffff;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.3s;
}

.mobile-header .close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

.mobile-menu-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 0;
}

.mobile-menu-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-menu-content li {
  border-bottom: 1px solid #f1f1f1;
}

.mobile-menu-content li:last-child {
  border-bottom: none;
}

.mobile-menu-content li a {
  display: block;
  padding: 16px 24px;
  color: #ffffffff;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.mobile-menu-content li a:hover {
  color: #00bfa6;
  background: rgba(0, 191, 166, 0.1);
  padding-left: 28px;
}

/* ================= OVERLAY ================= */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  z-index: 1050;
}

.overlay.show {
  display: block;
}

/* HERO */
.hero {
  text-align: center;
  padding: 70px 20px;
}

.hero h1 {
  font-size: 40px;
  color: #ffffffff;
}

.hero p {
  max-width: 600px;
  margin: 15px auto;
  color: #fff;
}

/* Company Overview */
.overview {
  padding: 80px 0;
  background-color: white;
}

.overview-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.overview h2 {
  font-size: 2.5rem;
  color: #1e40af;
  margin-bottom: 30px;
}

.overview p {
  font-size: 1.1rem;
  color: #4b5563;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* Products Section */
.products {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2.5rem;
  color: #1e40af;
  margin-bottom: 15px;
}

.section-title p {
  color: #6b7280;
  max-width: 600px;
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.product-card {
  background-color: white;
  border-radius: 10px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}

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

.product-icon {
  width: 80px;
  height: 80px;
  background-color: #e0f2fe;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  font-size: 32px;
  color: #1e40af;
}

.product-card h3 {
  font-size: 1.5rem;
  color: #1f2937;
  margin-bottom: 15px;
}

.product-card p {
  color: #6b7280;
  line-height: 1.6;
}

/* Features Section */
.features {
  padding: 80px 0;
  background-color: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.feature-item {
  background-color: #f8fafc;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  border-left: 4px solid #1e40af;
  transition: transform 0.3s;
}

.feature-item:hover {
  transform: translateY(-3px);
}

.feature-item i {
  font-size: 28px;
  color: #1e40af;
  margin-bottom: 20px;
}

.feature-item h4 {
  font-size: 1.2rem;
  color: #1f2937;
  margin-bottom: 10px;
}

/* FOOTER */
.app-footer {
  text-align: center;
  background: linear-gradient(135deg, #41adaf, #78ffd6);
  padding: 30px 15px;
  color: #ffffff;
  font-size: 0.95rem;
  border-top: 1px solid #15206e;
  width: 100%;
}

.app-footer a {
  color: #000;
  text-decoration: none;
  font-weight: 600;
}

.app-footer a:hover {
  text-decoration: underline;
}

/* Mobile fix */
@media (max-width: 768px) {
  .app-footer {
    margin-top: 0;
    font-size: 0.85rem;
  }
}
/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #007991;
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(0, 121, 145, 0.3);
  transition: all 0.3s;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: #00bfa6;
  transform: translateY(-5px);
}
/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
  .navbar {
    padding: 12px 20px;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .vspaze-heading {
    font-size: 22px;
  }

  main {
    padding: 20px;
  }

  main h1 {
    font-size: 24px;
  }

  main p {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .mobile-menu {
    max-width: 100%;
  }

  .navbar {
    padding: 10px 15px;
  }

  .logo img {
    width: 45px;
    height: 45px;
  }

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