@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@700&display=swap');

body {
  margin: 0;
  min-height: 100vh;
  background-color: #1a1a1a;
  font-family: 'Quicksand', sans-serif;
  color: white;
  padding: 100px 50px 50px;
  box-sizing: border-box;
  overflow-x: hidden;
}

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  padding: 0 50px;
  background: #1b1b1b;
  outline: 3px solid white;
  box-sizing: border-box;
  z-index: 1000;
}

.navbar .logo {
  font-size: 24px;
  font-weight: 600;
}

.navbar ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 20px;
}

.navbar ul li a {
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 5px;
  transition: all 0.3s ease;
  color: #fff;
}

.navbar ul li a:hover {
  opacity: 0.8;
}

/* Nav icon buttons */
.navbar .btn-dc,
.navbar .btn-tt,
.navbar .btn-gh {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  padding: 0;
  border-radius: 10px;
  transform-origin: center center;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.navbar .btn-dc:hover,
.navbar .btn-tt:hover,
.navbar .btn-gh:hover {
  transform: scale(1.1);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.navbar .btn-dc .nav-icon,
.navbar .btn-tt .nav-icon,
.navbar .btn-gh .nav-icon {
  display: block;
  object-fit: contain;
  transform: translate(0, 0);
  transform-origin: center center;
}

.navbar .btn-dc { background: #5865F2; }
.navbar .btn-tt { background: #ee1d52; }
.navbar .btn-gh { background: #333; }
.navbar .btn-download { background: #27ae60; }

.nav-icon {
  width: 24px;
  height: auto;
}

/* Menu button (mobile) */
.menu-btn {
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: none;
}

#click {
  display: none;
}

/* Canvas background */
canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Hero image */
#tilting-png {
  position: absolute;
  top: 60px;
  right: 50px;
  width: 35vw;
  max-width: 550px;
  height: auto;
  padding: 50px;
  transition: transform 0.2s ease;
}

#tilting-png:hover {
  transform: scale(1.05);
}

/* Content sections */
.introductions,
.infos,
.downloads {
  position: relative;
  z-index: 2;
  max-width: 55%;
  margin-bottom: 60px;
}

.introduction,
.info,
.download {
  border: 2px solid #333;
  padding: 10px 30px;
  width: fit-content;
  border-radius: 10px;
  margin-bottom: 20px;
  background-image: linear-gradient(45deg, #000 0%, #444 100%);
}

/* Typography */
h1, h3 { font-size: 45px; margin: 0; }
h3 { font-size: 35px; }
h4 { font-size: 26px; line-height: 1.5; margin: 20px 0 0 10px; }
h5 { font-size: 22px; margin: 20px 0 0 10px; }

a {
  text-decoration: none;
  color: inherit;
  font-size: 22px;
}

/* Download-style links and buttons */
.infos a,
.dwnld-btn {
  display: inline-block;
  margin: 10px 5px;
  padding: 12px 20px;
  border: 2px solid #555;
  border-radius: 10px;
  background-color: #333;
  transition: background 0.3s;
}

.dwnld-btn:hover,
.dwnld-btn-old:hover {
  background-color: #555;
}

/* Scroll arrow */
.arrow-container {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.5s ease;
}

.arrow-container span {
  display: block;
  width: 22px;
  height: 22px;
  margin: -6px;
  border-right: 3px solid #fff;
  border-bottom: 3px solid #fff;
  border-radius: 3px;
  transform: rotate(45deg);
  animation: jumpZoom 1.5s infinite ease-in-out;
}

.arrow-container span:nth-child(1) { animation-delay: 0.1s; }
.arrow-container span:nth-child(2) { animation-delay: 0.2s; }
.arrow-container span:nth-child(3) { animation-delay: 0.3s; }

@keyframes jumpZoom {
  0%, 100% { transform: rotate(45deg) scale(1) translateY(0); }
  50% { transform: rotate(45deg) scale(1.2) translateY(5px); }
}

.fade-out {
  opacity: 0;
  pointer-events: none;
}

/* Mobile social buttons */
.mobile-social-buttons {
  display: none;
  gap: 25px;
  padding: 35px;
  justify-content: center;
}

.mobile-social-buttons .btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 5px;
  transition: transform 0.2s ease;
}

.mobile-social-buttons .btn:hover {
  transform: scale(1.1);
}

.mobile-social-buttons .btn img {
  width: 25px;
  height: 25px;
  object-fit: contain;
}

.github-s { background-color: #333; }
.dc-s { background-color: #5865F2; }
.tiktok-s { background-color: #ee1d52; }

html {
  scroll-behavior: smooth;
}

/* Media: tablet and smaller */
@media (max-width: 1100px) {
  #tilting-png {
    display: none;
  }

  .introductions,
  .infos,
  .downloads {
    max-width: 100%;
    padding: 0;
    text-align: center;
  }

  .introduction,
  .info,
  .download {
    margin: 0 auto 20px auto;
  }

  h1 { font-size: 35px; }
  h2, h4 { font-size: 22px; margin-left: 0; }

  .arrow-container {
    display: none;
  }
}

/* Arrow position for mid-range viewports */
@media (min-width: 1100px) and (max-width: 1395px) {
  .arrow-container {
    right: 50px;
    left: auto;
    transform: none;
  }
}

/* Media: mobile */
@media (max-width: 940px) {
  .menu-btn {
    display: none;
  }

  .navbar ul {
    display: none;
  }

  .navbar > .logo {
    font-size: 30px;
    margin: 0 auto;
  }

  .mobile-social-buttons {
    display: flex;
  }
}