@font-face {
  font-family: 'CeltesSP2';
  src: url('CeltesSP2.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
}

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

body, html {
  height: 100%;
  width: 100%;
  font-family: 'CeltesSP2', sans-serif;
}

body {
  background: url('background-photo.jpg') no-repeat center center fixed;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
}

.overlay {
  text-align: center;
  color: #fff;
  padding: 20px;
}

.logo-link {
  position: relative;
  display: inline-block;
}

.logo {
  max-width: 300px;
  width: 33vw;
  height: auto;
  display: block;
  margin: 0 auto 20px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.logo-link:hover .logo {
  transform: scale(1.05);
}

/* Tooltip Comic Style */
.logo-link::after {
  content: "Наша группа ВКонтакте!";
  position: absolute;
  top: -70px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  color: #000;
  font-family: 'CeltesSP2', sans-serif;
  font-size: 1rem;
  padding: 12px 18px;
  border-radius: 20px;
  border: 2px solid #000;
  box-shadow: 3px 3px 0 #000;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

/* Comic tail */
.logo-link::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  border: 10px solid transparent;
  border-top: none;
  border-bottom: 10px solid #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.logo-link:hover::after,
.logo-link:hover::before {
  opacity: 1;
}

.phone {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 2rem;
  color: #fff;
  text-decoration: none;
  background: rgba(0, 0, 0, 0.5);
  padding: 10px 20px;
  border-radius: 15px;
  margin: 0 auto;
  width: fit-content;
  transition: background 0.3s ease, transform 0.3s ease;
}

.phone:hover {
  background: rgba(34, 158, 217, 0.8);
  transform: scale(1.05);
}

.tg-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .phone {
    font-size: 1.5rem;
    padding: 8px 16px;
  }
}