* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body, html {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0b0c10;
  color: #fff;
  height: 100%;
}
.container {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}
.center-logo {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}
.large-logo {
  max-width: 220px;
  width: 100%;
  height: auto;
}
main {
  text-align: center;
  margin-top: 20px;
  position: relative;
  z-index: 5;
}
main h1 {
  font-size: 3rem;
  font-weight: bold;
  margin: 1rem 0;
}
.subtitle {
  font-size: 1.2rem;
  color: #ccc;
  line-height: 1.6;
  margin-bottom: 2rem;
}
.background-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('bitcoin-bg.jpg') no-repeat center center/cover;
  opacity: 0.08;
  z-index: 1;
  pointer-events: none;
}
.contact-form {
  background: rgba(11, 12, 16, 0.95);
  padding: 60px 20px;
  text-align: center;
  margin-top: 50px;
}
.contact-form h2 {
  color: #f7931a;
  font-size: 2rem;
  margin-bottom: 30px;
}
.contact-form form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-form input,
.contact-form textarea {
  padding: 14px;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  background: #1c1f26;
  color: #fff;
}
.contact-form button {
  background-color: #f7931a;
  color: #000;
  padding: 12px;
  font-weight: bold;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s;
}
.contact-form button:hover {
  background-color: #ffa94d;
}
footer {
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
  color: #888;
  background: #0b0c10;
  margin-top: 30px;
}