* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", Arial, sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;

  background:
    linear-gradient(rgba(13, 13, 13, 0.8), rgba(13, 13, 13, 0.85)),
    url("img/banner.jpg");
  background-size: cover;
  background-position: center;
}

.form-dangky {
  width: 400px;
  background: #121212;
  padding: 40px 32px;

  border-radius: 8px;

  border: 1px solid #222;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

.form-dangky h2 {
  text-align: center;
  margin-bottom: 28px;
  color: #ffffff;
  font-size: 26px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.form-dangky input {
  width: 100%;
  padding: 13px 16px;
  margin: 10px 0;

  border: 1px solid #252525;
  background: #1a1a1a;
  color: #fff;
  border-radius: 4px;

  outline: none;
  font-size: 14px;
  transition: all 0.3s ease;
}

.form-dangky input:focus {
  border-color: #d4af37;
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.2);
  background-color: #1a1a1a;
}

.form-dangky button {
  width: 100%;
  padding: 14px;
  margin-top: 20px;
  border: none;
  border-radius: 4px;

  background: #d4af37;
  color: #000;
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition: 0.3s ease;
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.15);
}

.form-dangky button:hover {
  background: #ffffff;
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

.form-dangky p {
  text-align: center;
  margin-top: 25px;
  font-size: 14px;
  color: #888;
}

.form-dangky a {
  color: #d4af37;
  text-decoration: none;
  font-weight: 600;
  margin-left: 3px;
  transition: 0.2s;
}

.form-dangky a:hover {
  color: #fff;
  text-decoration: underline;
}