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

/* Body & Background */
html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  color: white;
  font-family: 'Poppins', sans-serif;
  text-align: center;
  background: linear-gradient(-45deg, #001237, #002a8f, #004ef9, #00b4fc);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  height: 100dvh;
  position: relative;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Container */
.container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 100%;
  max-width: 600px;
  padding: 0 20px;
}

img.logo {
  width: 200px;
  max-width: 70%;
  margin-bottom: 20px;
}

h1 {
  font-size: 1.9rem;
  margin-bottom: 30px;
}

/* Buttons - wider for web */
.btn {
  width: 90%;        /* slightly wider */
  max-width: 400px;  /* widened on desktop */
  background-color: white;
  color: #004ef9;
  padding: 15px 0;
  border: none;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: block;
  margin: 0 auto 15px;
}

.btn:hover {
  background-color: #e4e8ff;
  transform: scale(1.05);
}

.btn-secondary {
  background-color: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: scale(1.05);
}

/* Small Text */
.small-text {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-bottom: 10px;
}

/* Social Links */
.social {
  margin-top: 40px;
}

.social p {
  font-size: 1rem;
  margin-bottom: 10px;
  opacity: 0.9;
}

.social a {
  color: white;
  margin: 0 12px;
  font-size: 1.6rem;
  transition: all 0.3s ease;
}

.social a:hover {
  color: #00b4fc;
  text-shadow: 0 0 10px #00b4fc;
}

/* Footer */
footer {
  position: fixed;
  bottom: 15px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Responsive */
@media (max-width: 600px) {
  img.logo {
    width: 160px;
  }
  h1 {
    font-size: 1.4rem;
  }
  .btn {
    width: 90%;        /* responsive for mobile */
    max-width: 350px;
    padding: 14px 0;
  }
  .social a {
    font-size: 1.4rem;
    margin: 0 8px;
  }
}