/*
© 2026 Not Found Pages · 404-matrix-rain-katakana-classic
Released under the MIT License

Repository → https://github.com/notfoundpages/404-matrix-rain-katakana-classic
Live Preview → https://notfoundpages.github.io/404-matrix-rain-katakana-classic

Discover the full collection → https://notfoundpages.github.io
*/

:root {
  --matrix-green: #0f0;
  --matrix-glow: 0 0 10px rgba(0, 255, 0, 0.7), 0 0 20px rgba(0, 255, 0, 0.5);
}

* {
  box-sizing: border-box;
}

body,
html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: 'Share Tech Mono', monospace;
}

canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

/* Flex container for perfect centering */
.container {
  position: relative;
  z-index: 2;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  pointer-events: none;
  /* Allows clicks to pass through to background if needed */
}

/* Glassmorphism card */
.msg {
  pointer-events: auto;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 3.5rem 4rem;
  border: 1px solid rgba(0, 255, 0, 0.2);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 255, 0, 0.15), inset 0 0 20px rgba(0, 255, 0, 0.05);
  max-width: 500px;
  width: 100%;
  transform: translateY(-5%);
  animation: fadeIn 1s ease-out forwards;
}

h1 {
  font-size: 5rem;
  margin: 0;
  color: var(--matrix-green);
  text-shadow: var(--matrix-glow);
  letter-spacing: 6px;
  line-height: 1;
}

p {
  margin: 1.5rem 0 2.5rem;
  font-size: 1.25rem;
  color: #b3ffb3;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.back-btn {
  display: inline-block;
  width: 100%;
  padding: 14px 24px;
  background: transparent;
  color: var(--matrix-green);
  border: 1px solid var(--matrix-green);
  border-radius: 6px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 1.1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.1);
}

.back-btn:hover {
  background: var(--matrix-green);
  color: #000;
  box-shadow: 0 0 25px rgba(0, 255, 0, 0.6);
  transform: translateY(-2px);
}

.back-btn:active {
  transform: translateY(1px);
  box-shadow: 0 0 10px rgba(0, 255, 0, 0.4);
}

@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: translateY(0);
  }

  100% {
    opacity: 1;
    transform: translateY(-5%);
  }
}

/* Responsive Design */

/* Tablets and smaller laptops */
@media (max-width: 768px) {
  .msg {
    max-width: 90%;
    padding: 3rem 2.5rem;
  }

  h1 {
    font-size: 4.5rem;
  }

  p {
    font-size: 1.1rem;
    letter-spacing: 1.5px;
  }
}

/* Mobile devices */
@media (max-width: 480px) {
  .container {
    padding: 16px;
  }

  .msg {
    max-width: 100%;
    padding: 2.5rem 1.5rem;
    border-radius: 10px;
  }

  h1 {
    font-size: 4rem;
    letter-spacing: 4px;
  }

  p {
    margin: 1.25rem 0 2rem;
    font-size: 1rem;
    letter-spacing: 1px;
    line-height: 1.5;
  }

  .back-btn {
    padding: 12px;
    font-size: 1rem;
    letter-spacing: 1.5px;
  }
}

/* Small mobile devices */
@media (max-width: 360px) {
  .container {
    padding: 12px;
  }

  .msg {
    padding: 2rem 1rem;
  }

  h1 {
    font-size: 3.25rem;
    letter-spacing: 3px;
  }

  p {
    font-size: 0.9rem;
    letter-spacing: 0.5px;
  }

  .back-btn {
    padding: 11px;
    font-size: 0.9rem;
  }
}

/* Mobile landscape */
@media (max-height: 500px) and (orientation: landscape) {
  .container {
    align-items: flex-start;
    overflow-y: auto;
    padding: 20px;
  }

  .msg {
    margin: 20px 0;
    padding: 2rem;
    transform: none;
  }

  h1 {
    font-size: 3.5rem;
  }

  p {
    margin: 1rem 0 1.5rem;
  }
}