:root {
  --bg-main: #0a0c10;
  --bg-card: #121620;
  --bg-nav: rgba(10, 12, 16, 0.85);
  --accent-cyan: #00e5ff;
  --accent-pink: #ff0055;
  --accent-yellow: #ffb703;
  --text-main: #f0f4f8;
  --text-muted: #8b9bb4;
  --border-color: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(0, 229, 255, 0.4);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #fff;
  text-decoration: none;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover, nav a.active {
  color: var(--accent-cyan);
}

.lang-switch {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

.lang-switch:hover {
  background: rgba(0, 229, 255, 0.1);
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}

main {
  flex: 1;
  padding-top: 120px;
}

.page-container {
  max-width: 900px;
  margin: 40px auto 80px;
  padding: 0 2rem;
}

.page-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #8b9bb4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.content-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.content-box h2 {
  font-size: 1.4rem;
  color: var(--accent-cyan);
  margin: 1.5rem 0 0.8rem;
}

.content-box h2:first-child {
  margin-top: 0;
}

.content-box p, .content-box ul {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.content-box ul {
  padding-left: 1.2rem;
}

.hero {
  padding: 60px 2rem 80px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, #ffffff 0%, #8b9bb4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.rotating-img {
  width: 100%;
  max-width: 440px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 20px 40px rgba(0, 229, 255, 0.25));
  animation: rotate3D 14s infinite linear;
  transform-style: preserve-3d;
}

.hero-visual:hover .rotating-img {
  animation-play-state: paused;
}

@keyframes rotate3D {
  0% { transform: rotateY(0deg) rotateX(2deg); }
  50% { transform: rotateY(180deg) rotateX(-2deg); }
  100% { transform: rotateY(360deg) rotateX(2deg); }
}

.section-title {
  text-align: center;
  max-width: 1200px;
  margin: 60px auto 40px;
  padding: 0 2rem;
}

.section-title h2 {
  font-size: 2.3rem;
  font-weight: 700;
}

.section-title p {
  color: var(--text-muted);
}

.product-grid {
  max-width: 1200px;
  margin: 0 auto 100px;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--card-hover-border);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.product-img-wrapper {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  background: rgba(0,0,0,0.2);
  border-radius: 10px;
  padding: 1rem;
}

.product-img-wrapper img, .product-img-wrapper svg {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.product-info p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.status-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-yellow);
  background: rgba(255, 183, 3, 0.1);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.about-section {
  background: #0d1017;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 80px 2rem;
}

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

.about-container h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.about-container p {
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-group input, .form-group textarea {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.8rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
}

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

.submit-btn {
  background: var(--accent-cyan);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 0.8rem 1.5rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  width: fit-content;
}

.submit-btn:hover {
  background: #50efff;
  transform: translateY(-2px);
}

footer {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 1.5rem;
}

footer a:hover {
  color: var(--accent-cyan);
}

/* Language Switcher Button */
.lang-switch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: #00e5ff;
  border: 1px solid #00e5ff;
  padding: 5px 12px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
}

.lang-switch-btn:hover {
  background-color: #00e5ff;
  color: #0a0c10;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

@media (max-width: 850px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 40px;
    text-align: center;
  }
  .hero-content h1 {
    font-size: 2.3rem;
  }
  nav ul {
    display: none;
  }
  footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  footer a {
    margin: 0 0.75rem;
  }
}