/* Reset + Background */
body {
  margin: 0;
  min-height: 100vh;
  color: #ffffff;
  font-family: 'Open Sans', sans-serif;
  background-image: url("fondo.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Dark gradient overlay for readability */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.45),
    rgba(0,0,0,0.75)
  );
  z-index: -1;
}

/* Main layout container */
.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}

/* Title */
h1 {
  font-size: 22px;
  font-weight: 600;
  margin: 8px 0 4px 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Subtitle */
h6 {
  font-size: 14px;
  font-weight: 300;
  margin: 0 0 28px 0;
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* Buttons */
.btn {
  width: 100%;
  max-width: 320px;
  padding: 14px 18px;
  margin: 10px 0;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid #ffffff;
  border-radius: 16px;
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: 1.4px;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: scale(1.03);
  background: rgba(0, 0, 0, 1);
}

.btn:active {
  transform: scale(0.97);
}

/* Shake animation (hover only) */
.shake:hover {
  animation: shake-animation 0.8s ease;
}

@keyframes shake-animation {
  0%   { transform: translate(0,0); }
  20%  { transform: translate(4px,0); }
  40%  { transform: translate(0,0); }
  60%  { transform: translate(4px,0); }
  80%  { transform: translate(0,0); }
  100% { transform: translate(0,0); }
}

/* Social icons (Instagram + Phone) */
.social-icons {
  display: flex;
  gap: 22px;
  margin-top: 30px;
}

.social-icons img {
  width: 26px;
  height: 26px;
  opacity: 0.9;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.social-icons img:hover {
  transform: scale(1.15);
  opacity: 1;
}