/* ===== Global Reset ===== */
body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  height: 100vh;
  background: url("logo/bg_img.jpg") no-repeat center center fixed;
  background-size: cover;
  overflow: hidden;
}

/* ===== Overlay Layer ===== */
.welcome-overlay {
  background: rgba(0, 32, 64, 0.75);
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  color: #fff;
}

/* ===== Header Logos ===== */
.header-logos {
  position: absolute;
  top: 25px;
  left: 40px;
  right: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-logos img {
  width: 140px;
  height: auto;
  transition: transform 0.3s ease;
}

.header-logos img:hover {
  transform: scale(1.05);
}

/* ===== Welcome Box ===== */
.welcome-box {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 60px 50px;
  border-radius: 18px;
  text-align: center;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  max-width: 550px;
}

.welcome-box h1 {
  font-size: 28px;
  margin-bottom: 15px;
  color: #ffffff;
  font-weight: 700;
}

.welcome-box p {
  font-size: 16px;
  color: #e6e6e6;
  margin-bottom: 30px;
}

/* ===== Button ===== */
.btn {
  display: inline-block;
  background: linear-gradient(135deg, #003366, #0074d9);
  color: #fff;
  padding: 14px 35px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background: linear-gradient(135deg, #002855, #005bb5);
  transform: scale(1.05);
}

/* ===== Footer ===== */
.footer {
  position: absolute;
  bottom: 20px;
  text-align: center;
  font-size: 13px;
  color: #dcdcdc;
  letter-spacing: 0.5px;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .header-logos {
    top: 15px;
    left: 20px;
    right: 20px;
  }

  .header-logos img {
    width: 100px;
  }

  .welcome-box {
    padding: 40px 30px;
    margin: 0 20px;
  }

  .welcome-box h1 {
    font-size: 22px;
  }

  .welcome-box p {
    font-size: 14px;
  }

  .btn {
    padding: 12px 25px;
    font-size: 14px;
  }
}