/* Base Layout */
body {
  background-color: teal;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
}

.window {
  width: 90%;
  max-width: 1024px;
  height: auto;
  position: relative;
  overflow: hidden;
}

#doom-container {
  width: 100%;
  height: 480px;
}

.title-bar {
  min-width: 320px;
}

.status-bar {
  font-size: 12px;
}

/* Mobile Styles */
@media (max-width: 767px) {
  body {
    display: block;
    padding: 5px;
    height: auto;
  }

  .window {
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 0;
  }

  #doom-container {
    height: 300px;
  }

  .status-bar {
    font-size: 10px;
  }

  .title-bar-text {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  #doom-container {
    height: 240px;
  }

  .status-bar {
    font-size: 9px;
  }

  .title-bar-text {
    font-size: 12px;
  }
}

@media (orientation: portrait) {
  #doom-container {
    height: 220px;
  }
}

@media (min-width: 1024px) {
  body {
    padding: 0;
    height: 100vh;
  }

  .window {
    width: 1024px;
    height: 768px;
  }

  #doom-container {
    width: 100%;
    height: calc(768px - 60px);
  }
}

/* CRT Blue Screen */
@keyframes flicker {
  0%, 100% { opacity: 1; transform: translate(0, 0); }
  1% { opacity: 0.95; transform: translate(-1px, 0); }
  2% { opacity: 0.97; transform: translate(1px, 0); }
  3% { opacity: 0.9; transform: translate(0, -1px); }
  4% { opacity: 0.98; transform: translate(0, 1px); }
}

body.crt-mode {
  background-color: #0000AA;
  font-family: 'Perfect DOS VGA 437', monospace;
  color: #FFFFFF;
  font-size: 16px;
  line-height: 1.2;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.crt {
  position: relative;
  width: 640px;
  height: 400px;
  white-space: pre;
  animation: flicker 0.15s infinite;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.05),
    rgba(255,255,255,0.05) 1px,
    transparent 1px,
    transparent 2px
  );
}

.crt::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05) 0%, transparent 80%);
  mix-blend-mode: screen;
}