body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #0d1117;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow-x: hidden;
}

.tech-left, .tech-right {
  position: absolute;
  top: 0;
  width: 60px;
  height: 100%;
  opacity: 0.025;
  background-image: url('assets/tech_pattern.png');
  background-repeat: repeat-y;
  background-size: contain;
  z-index: 0;
}
.tech-left {
  left: 0;
}
.tech-right {
  right: 0;
}

header, footer, section {
  width: 92%;
  max-width: 800px;
  margin: 1rem auto;
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  position: relative;
  z-index: 1;
}

header.compact {
  max-width: 620px;
}
footer.narrow {
  max-width: 500px;
}

.glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
  width: 180px;
  margin-bottom: 1rem;
}

.neon {
  filter: drop-shadow(0 0 10px #0ff) drop-shadow(0 0 25px #0ff);
}

.logo-title {
  font-size: 1.8rem;
  font-weight: bold;
  line-height: 1.2;
}
.subtitle {
  font-size: 1.2rem;
  font-weight: 300;
}

ul, ol {
  text-align: left;
  line-height: 1.6;
  padding-left: 1.2rem;
}

.btn {
  display: inline-block;
  margin: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-weight: bold;
  border: none;
  border-radius: 6px;
  text-decoration: none;
  color: #fff;
  font-size: 1rem;
}

.telegram {
  background: #0088cc;
}
.btn.email {
  background-color: #6c87b9;
  color: white;
  text-decoration: none;
  padding: 11px 22px;
  border-radius: 05px;
  font-weight: bold;
}

.whatsapp {
  background: #25D366;
}

.lang-switch {
  margin: 1rem 0;
}
.lang-switch button {
  margin: 0 0.3rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid #888;
  background: #1e1e1e;
  color: #fff;
  cursor: pointer;
}

.highlight {
  background: rgba(0, 255, 200, 0.05);
  border: 1px solid rgba(0, 255, 200, 0.1);
  color: #00ffe0;
}

footer p {
  text-align: center;
}

section ul {
  padding-left: 0;
  list-style-position: inside;
  text-align: center;
}
footer p {
  text-align: center;
}