*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #0a0a0a;
  color: #33ff66;
  font-family: "Courier New", Courier, monospace;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.terminal-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 960px;
  margin: 0 auto;
}

.terminal-shell__bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: #111;
  border-bottom: 1px solid #1f3d1f;
}

.terminal-shell__back {
  color: #33ff66;
  text-decoration: none;
  font-size: 0.85rem;
}

.terminal-shell__back:hover {
  text-decoration: underline;
}

.terminal-shell__title {
  font-size: 0.85rem;
  opacity: 0.8;
}

.terminal-shell__mobile-banner {
  display: none;
  margin: 0;
  padding: 0.6rem 1rem;
  background: #1a2f1a;
  font-size: 0.85rem;
  text-align: center;
}

.terminal-shell__mobile-banner a {
  color: #d4a853;
}

@media (max-width: 640px) {
  .terminal-shell__mobile-banner {
    display: block;
  }
}

.terminal-shell__loader[hidden] {
  display: none !important;
}

.terminal-shell__loader {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
}

.terminal-shell__start {
  padding: 0.65rem 1.25rem;
  border: 1px solid #33ff66;
  background: transparent;
  color: #33ff66;
  font: inherit;
  cursor: pointer;
  border-radius: 4px;
}

.terminal-shell__start:hover:not(:disabled) {
  background: rgba(51, 255, 102, 0.12);
}

.terminal-shell__start:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.terminal-shell__loader-bar[hidden] {
  display: none !important;
}

.terminal-shell__loader-bar {
  width: min(320px, 80vw);
  height: 4px;
  background: #1f3d1f;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.terminal-shell__loader-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: #33ff66;
  animation: loader-slide 1.2s ease-in-out infinite;
}

@keyframes loader-slide {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(350%);
  }
}

.terminal-screen[hidden] {
  display: none !important;
}

.terminal-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  background: #050505;
  box-shadow: inset 0 0 80px rgba(51, 255, 102, 0.04);
}

.terminal-screen__output {
  flex: 1;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  font-size: clamp(0.8rem, 2.5vw, 0.95rem);
  line-height: 1.45;
}

.terminal-screen__form {
  display: flex;
  margin-top: 0.5rem;
  border-top: 1px solid #1f3d1f;
  padding-top: 0.5rem;
}

.terminal-screen__input {
  flex: 1;
  background: transparent;
  border: none;
  color: #33ff66;
  font: inherit;
  outline: none;
  caret-color: #33ff66;
}

.terminal-screen__input:disabled {
  opacity: 0.5;
}

@media (prefers-reduced-motion: reduce) {
  .terminal-shell__loader-bar::after {
    animation: none;
    width: 100%;
  }
}