body {
  margin: 0;
  padding: 0;

  min-height: 100vh;

  display: flex;
  justify-content: center;
  align-items: center;

  background:
    radial-gradient(circle at top,
      rgba(72, 112, 148, 0.35),
      transparent 35%),

    linear-gradient(
      135deg,
      #07131f 0%,
      #0b1d2d 25%,
      #10273a 55%,
      #08131d 100%
    );

  font-family: Arial, Helvetica, sans-serif;

  overflow-x: hidden;
  overflow-y: auto;
}

/* INTRO SCREEN */

#intro-screen {
  position: fixed;
  inset: 0;

  width: 100%;
  height: 100vh;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  background:
    radial-gradient(circle at top,
      rgba(72, 112, 148, 0.25),
      transparent 35%),

    linear-gradient(
      135deg,
      #07131f 0%,
      #0b1d2d 25%,
      #10273a 55%,
      #08131d 100%
    );

  z-index: 999999;

  font-family: monospace;

  animation: introFadeOut 1s ease forwards;
  animation-delay: 4s;
}

#intro-title {
  margin: 0;

  color: #fff;

  font-size: 42px;
  letter-spacing: 6px;

  text-shadow:
    0 0 12px rgba(255,255,255,0.2),
    0 0 24px rgba(255,255,255,0.12);

  animation: introZoom 1.2s ease;
}

#intro-subtitle {
  margin-top: 10px;

  color: rgba(255,255,255,0.85);

  font-size: 20px;
  letter-spacing: 4px;

  animation: introOpacity 1.5s ease;
}

.login-page {
  width: 100%;

  display: flex;
  justify-content: center;
  align-items: center;

  padding: 30px;
  box-sizing: border-box;
}

.login-card {
  width: 100%;
  max-width: 1080px;
  min-height: 760px;

  display: flex;

  overflow: hidden;

  border-radius: 28px;

  background: rgba(0, 0, 0, 0.88);

  box-shadow:
    0 0 40px rgba(0, 0, 0, 0.85),
    0 0 80px rgba(212, 175, 55, 0.08);
}

.left-side {
  flex: 1;

  position: relative;

  display: flex;
  justify-content: center;
  align-items: center;

  overflow: hidden;

  background:
    radial-gradient(circle at center,
      rgba(129, 59, 255, 0.22),
      transparent 55%),
    url("../images/bg-left.png") center/cover no-repeat;
}

.left-side::before {
  content: "";
  position: absolute;
  inset: 0;

  background:
    linear-gradient(to right,
      transparent 70%,
      rgba(0, 0, 0, 0.88));
}

.logo {
  position: absolute;

  top: -10px;
  left: 40px;

  width: 230px;

  z-index: 3;

  filter:
    drop-shadow(0 0 10px rgba(255, 0, 0, 0.45))
    drop-shadow(0 0 25px rgba(255, 0, 0, 0.2));
}

.character {
  width: 100%;
  max-width: 500px;

  position: relative;
  z-index: 2;

  object-fit: contain;

  filter:
    drop-shadow(0 0 30px rgba(180, 0, 255, 0.25));

  margin-top: 10px;
}
.right-side {
  width: 480px;

  display: flex;
  justify-content: center;
  align-items: center;

  padding: 40px;

  background:
    linear-gradient(to bottom,
      rgba(0, 0, 0, 0.92),
      rgba(2, 4, 14, 0.98));
}

.panel {
  width: 100%;

  padding: 42px 34px;

  border-radius: 24px;

  background:
    radial-gradient(circle at top,
      rgba(255, 215, 90, 0.06),
      rgba(0, 0, 0, 0.92));

  border: 2px solid rgba(212, 175, 55, 0.55);

  box-shadow:
    0 0 25px rgba(212, 175, 55, 0.08),
    inset 0 0 25px rgba(0, 0, 0, 0.85);

  text-align: center;
}

.eyebrow {
  color: #d4af37;

  font-size: 13px;
  font-weight: 800;

  letter-spacing: 4px;
  text-transform: uppercase;

  margin-bottom: 18px;
}

.panel h1 {
  margin: 0;

  line-height: 0.9;

  font-size: clamp(34px, 4vw, 56px);
  font-weight: 900;

  text-transform: uppercase;

  color: #ffe9a6;

  text-shadow:
    0 0 8px rgba(255, 240, 180, 0.8),
    0 0 22px rgba(255, 215, 90, 0.45);
}

.description {
  margin-top: 28px;
  margin-bottom: 34px;

  color: #f1f1f1;

  font-size: 18px;
  line-height: 1.5;

  font-family: monospace;
}

.login-form label {
  display: block;

  margin-bottom: 12px;

  color: #d4af37;

  font-size: 15px;
  font-weight: 800;

  letter-spacing: 2px;
  text-transform: uppercase;
}

.login__input {
  width: 100%;
  height: 62px;

  border-radius: 12px;

  border: 1px solid rgba(212, 175, 55, 0.35);

  background: rgba(0, 0, 0, 0.72);

  outline: none;

  padding: 0 20px;

  color: #fff;

  font-size: 18px;
  font-family: monospace;

  box-sizing: border-box;

  transition: 0.3s;
}

.login__input:focus {
  border-color: rgba(255, 215, 90, 0.8);

  box-shadow:
    0 0 18px rgba(255, 215, 90, 0.18);
}

.login__input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.login__button {
  width: 100%;
  height: 64px;

  margin-top: 18px;

  border: none;
  border-radius: 14px;

  background:
    linear-gradient(180deg,
      #ffd85c,
      #d99b18);

  color: #111;

  font-size: 22px;
  font-weight: 900;

  text-transform: uppercase;

  cursor: pointer;

  transition: 0.3s;

  box-shadow:
    0 0 18px rgba(212, 175, 55, 0.28),
    inset 0 0 10px rgba(255, 255, 255, 0.2);
}

.login__button:hover {
  transform: translateY(-4px) scale(1.01);

  box-shadow:
    0 0 30px rgba(255, 215, 90, 0.4),
    0 0 60px rgba(255, 215, 90, 0.12);
}

footer {
  margin-top: 36px;

  display: flex;
  flex-direction: column;

  gap: 14px;

  color: rgba(255, 255, 255, 0.6);

  font-family: monospace;

  font-size: 14px;
}

@keyframes introZoom {
  from {
    transform: scale(0.7);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes introOpacity {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 0.85;
    transform: translateY(0);
  }
}

@keyframes introFadeOut {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

@media (max-width: 1100px) {

  body {
    align-items: flex-start;

    padding: 20px 0;
  }

  .login-card {
    flex-direction: column;

    min-height: auto;
  }

  .left-side {
    min-height: 420px;
  }

  .right-side {
    width: 100%;

    box-sizing: border-box;
  }

  .character {
    max-width: 480px;
  }
}

@media (max-width: 768px) {

  #intro-title {
    font-size: 52px;

    letter-spacing: 2px;

    text-align: center;

    padding-inline: 10px;
  }

  #intro-subtitle {
    font-size: 24px;
  }

  .login-page {
    width: 100%;
    padding: 14px;
  }

  .login-card {
    border-radius: 18px;
  }

  .left-side {
    min-height: 320px;
  }

  .logo {
    width: 170px;

    left: 24px;
  }

.character {
  max-width: 280px;

  margin-top: 10px;
}

  .right-side {
    padding: 20px;
  }

  .panel {
    padding: 28px 20px;
  }

  .panel h1 {
    font-size: 32px;
  }

  .description {
    font-size: 14px;
  }

  .login__input {
    height: 56px;

    font-size: 16px;
  }

  .login__button {
    height: 58px;

    font-size: 18px;
  }
}