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

body {
  background: black;
  color: white;
  font-family: monospace;
  height: 100vh;
  overflow: hidden;
}

/* ОСНОВНОЙ ЭКРАН */
#screen {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

#text {
  font-size: 3rem;
  max-width: 80%;
  line-height: 1.3;
}

#buttons {
  margin-top: 40px;
}

button {
  background: black;
  border: 2px solid white;
  color: white;
  font-size: 1.5rem;
  padding: 10px 30px;
  margin: 0 20px;
  cursor: pointer;
}

button:hover {
  background: white;
  color: black;
}

#sub {
  margin-top: 25px;
  font-size: 1.1rem;
  opacity: 0.6;
}

.hidden {
  display: none;
}

/* ПРОДОЛЖИТЬ */
#continue {
  margin-top: 60px;
  font-size: 1.2rem;
  opacity: 0;
  cursor: pointer;
  transition: opacity 4s;
}

#continue.show {
  opacity: 1;
}

/* СКРИМЕР */
#screamer {
  position: fixed;
  inset: 0;
  background: black;
  z-index: 9999;
  animation: flash 0.06s infinite;
}

#screamer img {
  width: 100vw;
  height: 100vh;
  object-fit: contain;
}

/* ГЛИТЧ */
.glitch {
  animation: glitch 0.08s infinite;
}

@keyframes glitch {
  0% { transform: translate(0); }
  25% { transform: translate(2px, -2px); }
  50% { transform: translate(-2px, 2px); }
  75% { transform: translate(2px, 2px); }
  100% { transform: translate(0); }
}

@keyframes flash {
  0% { filter: brightness(1); }
  50% { filter: brightness(1.4); }
  100% { filter: brightness(1); }
}

/* ЧЁРНЫЙ ЭКРАН */
#black {
  position: fixed;
  inset: 0;
  background: black;
  z-index: 20;
}

/* ТИТРЫ */
#credits {
  position: fixed;
  inset: 0;
  background: black;
  overflow: hidden;
  z-index: 30;
}

.credits-content {
  position: absolute;
  width: 100%;
  text-align: center;
  top: 50%;
  transform: translateY(-50%);
  animation: scroll 40s linear forwards;
}

.credits-content p {
  font-size: 2rem;
  margin: 60px 0;
}

.credits-content img {
  max-width: 30%;
  margin: 40px auto;
  display: block;
  opacity: 0.9;
}

@keyframes scroll {
  from { transform: translateY(-50%); }
  to { transform: translateY(-250%); }
}

/* МОБИЛЬНАЯ БЛОКИРОВКА */
#mobile-block {
  display: none;
}

@media (max-width: 900px) {
  #screen, #screamer, #credits, #black {
    display: none !important;
  }

  #mobile-block {
    display: flex;
    height: 100vh;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    text-align: center;
    padding: 20px;
  }
}