html,
body {
  height: 100vh;
  width: 100vw;
  margin: 0;
  padding: 0;
  background: #fafafa;
  overflow: hidden;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  overscroll-behavior-y: none;
  position: relative;
}

canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
}

h1 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  text-align: center;
  color: #000;
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: bold;
  margin: 0;
  line-height: 0.8;
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out,
    visibility 0.5s;
}

h1#hero-name {
  opacity: 0;
  transform: translate(-50%, -70%);
  visibility: hidden;
}

h1#hero-name.loaded {
  opacity: 1;
  transform: translate(-50%, -50%);
  visibility: visible;
}

h1#hero-name.landing-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -70%);
}

h1::after {
  content: "Matthew Nanas";
  position: absolute;
  top: 0;
  left: 0;
  color: blue;
  mix-blend-mode: multiply;
  z-index: 2;
}

#hero-name {
  font-family: "Playfair Display, italic", serif;
  font-optical-sizing: auto;
  font-weight: 500;
  font-style: italic;
}

.content-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out,
    visibility 0.5s;
}

.content-container.landing-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, calc(-50% - 50px));
}

.nav-container {
  position: absolute;
  top: calc(50% + 50px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  justify-content: center;
  width: 100%;
  flex-wrap: wrap;
  padding: 0 20px;
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out,
    visibility 0.5s;
}

.nav-container.landing-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-50px);
}

.nav-item {
  color: #000;
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  margin: 10px 15px;
  cursor: pointer;
  font-family: "Playfair Display, italic", serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: italic;

  opacity: 0;
  transform: translateY(20px);
  visibility: hidden;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out,
    visibility 0.6s ease-out;
}

.nav-item.loaded {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.nav-item:hover {
  color: gray;
}

.hidden-content {
  scrollbar-width: none;
  -ms-overflow-style: none;

  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, 20px);
  width: 90%;
  max-width: 600px;
  padding: 15px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out,
    visibility 0.8s;
  z-index: 10;
  max-height: 80vh;
  overflow-y: auto;

  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.hidden-content.visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%);
}

.hidden-content::-webkit-scrollbar {
  display: none;
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-size: 0;
  color: transparent;
  overflow: hidden;
}

.close-btn::before,
.close-btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 2.5px;
  background-color: #333;
  transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}

.close-btn::before {
  transform: translate(-50%, -50%) rotate(0deg);
}

.close-btn::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.close-btn:hover::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.close-btn:hover::after {
  transform: translate(-50%, -50%) rotate(-45deg);
  opacity: 1;
}

.card-heading {
  font-family: "Playfair Display, italic", serif;
  font-optical-sizing: auto;
  font-weight: 600;
  font-style: italic;
  font-size: clamp(1.5rem, 6vw, 2rem);
  margin-bottom: 15px;
}

.card-text {
  font-family: "Manrope", serif;
  font-optical-sizing: auto;
  font-weight: 500;
  font-style: normal;
  font-size: clamp(0.9rem, 3.5vw, 1rem);
  line-height: 1.6;
}

.card-text-special {
  font-family: "Playfair Display, italic", serif;
  font-optical-sizing: auto;
  font-weight: 600;
  font-style: italic;
  font-size: clamp(1rem, 4vw, 1.1em);
}

.card-text a.card-text-special,
.card-text a.card-text-special:visited,
.card-text a.card-text-special:active {
  color: #000;
  text-decoration: none;
}

.card-text a.card-text-special:hover {
  color: gray;
}

.portrait {
  display: block;
  margin: 15px auto;
  width: clamp(120px, 60%, 200px);
  height: auto;

  -webkit-user-drag: none;
}

@media (max-width: 768px) {
  .nav-container {
    top: calc(50% + 80px);
    flex-direction: column;
    align-items: center;
  }

  .nav-item {
    margin: 8px 10px;
    font-size: 1.3rem;
  }

  .hidden-content {
    width: 95%;
    padding: 15px;
    max-height: 85vh;
    margin: 0 10px;
  }

  .card-text {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.5rem;
  }

  .nav-item {
    font-size: 1.2rem;
    margin: 6px 8px;
  }

  .hidden-content {
    width: 98%;
    padding: 12px;
  }

  .card-heading {
    font-size: 1.4rem;
  }

  .portrait {
    width: 70%;
    max-width: 150px;
  }
}

@media (max-width: 864px) and (orientation: landscape) {
  .nav-container {
    top: calc(50% + 60px);
    flex-direction: row;
  }

  .hidden-content {
    max-height: 75vh;
  }
}