:root {
  --mission-bg: #0b0b0f;
  --mission-text: #f2f2f5;
  --mission-muted: #d4aeb7;
  --mission-accent: #b31238;
  --mission-accent-dim: rgba(179, 18, 56, 0.58);
  --mission-accent-soft: rgba(179, 18, 56, 0.28);
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--mission-bg);
}

.mission-stage-page {
  min-height: 100vh;
  height: 100dvh;
  background: var(--mission-bg);
  color: var(--mission-text);
  font-family: "Share Tech Mono", "Consolas", "Liberation Mono", "Menlo", monospace;
  letter-spacing: 0.02em;
}

.mission-stage-shell {
  min-height: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2.75rem);
}

.mission-stage-panel {
  width: min(48rem, 100%);
  position: relative;
  display: grid;
  gap: 0.8rem;
  padding: clamp(1.45rem, 3vw, 2.5rem) clamp(0.95rem, 2.6vw, 2.2rem);
  border-left: 1px solid var(--mission-accent-dim);
  border-right: 1px solid var(--mission-accent-dim);
  animation: mission-stage-fade-in 360ms ease-out forwards;
}

.mission-stage-state {
  display: grid;
  gap: 0.8rem;
}

.mission-stage-state--hidden {
  display: none;
}

.mission-stage-panel::before,
.mission-stage-panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--mission-accent) 16%,
    var(--mission-accent) 84%,
    transparent 100%
  );
}

.mission-stage-panel::before {
  top: 0;
}

.mission-stage-panel::after {
  bottom: 0;
}

.mission-stage-kicker {
  margin: 0;
  color: var(--mission-accent);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: clamp(0.78rem, 1.3vw, 0.94rem);
}

.mission-stage-panel h1 {
  margin: 0.08rem 0 0;
  color: var(--mission-accent);
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  letter-spacing: 0.14em;
  line-height: 1.05;
  text-transform: uppercase;
}

.mission-stage-body {
  margin-top: 0.35rem;
  display: grid;
  gap: 0.42rem;
  max-width: 41rem;
  line-height: 1.5;
  font-size: clamp(0.96rem, 1.4vw, 1.06rem);
}

.mission-stage-body p {
  margin: 0;
  white-space: pre-line;
}

.mission-stage-agent {
  color: var(--mission-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.mission-stage-form {
  margin-top: 0.96rem;
  width: min(22rem, 100%);
  display: grid;
  gap: 0.6rem;
}

.mission-stage-form--coordinates {
  width: min(42rem, 100%);
}

.mission-stage-label {
  margin: 0;
  color: var(--mission-accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.mission-stage-input {
  width: 100%;
  height: 2.95rem;
  border: 1px solid var(--mission-accent-dim);
  border-radius: 0;
  background: rgba(7, 7, 11, 0.7);
  color: var(--mission-text);
  font: inherit;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0 0.7rem;
}

.mission-stage-input:focus {
  outline: none;
  border-color: var(--mission-accent);
  box-shadow: 0 0 0 1px var(--mission-accent-soft);
}

.mission-stage-coordinate-group {
  display: grid;
  grid-template-columns: minmax(11rem, 1.7fr) auto minmax(11rem, 1fr);
  align-items: center;
  gap: 0.55rem;
}

.mission-stage-coordinate-group .mission-stage-input {
  text-transform: none;
  letter-spacing: 0.03em;
}

.mission-stage-input--locked {
  color: #b2aeb7;
  border-color: rgba(184, 182, 187, 0.38);
  background: rgba(31, 30, 35, 0.75);
  cursor: default;
}

.mission-stage-input--critical {
  border-color: var(--mission-accent);
  color: #f2dbe2;
}

.mission-stage-input--critical::placeholder {
  color: #9a6b77;
  opacity: 1;
}

.mission-stage-coordinate-comma {
  color: var(--mission-accent);
  font-size: 1.35rem;
  line-height: 1;
  transform: translateY(-1px);
}

.mission-stage-button,
.mission-stage-link {
  width: fit-content;
  min-width: 10.8rem;
  height: 2.95rem;
  border: 1px solid var(--mission-accent);
  border-radius: 0;
  background: var(--mission-accent);
  color: #f8edf0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 140ms ease,
    box-shadow 140ms ease,
    border-color 140ms ease;
}

.mission-stage-button:hover,
.mission-stage-link:hover {
  background: #cf1943;
  box-shadow: 0 0 1.2rem var(--mission-accent-soft);
}

.mission-stage-link--maps {
  min-width: 12.2rem;
}

.mission-stage-video-shell {
  width: min(100%, 44rem);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--mission-accent-dim);
  background: rgba(8, 8, 12, 0.86);
  opacity: 0;
  transition: opacity 320ms ease;
}

.mission-stage-video-shell.is-visible {
  opacity: 1;
}

.mission-stage-video-shell iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.mission-stage-button:focus-visible,
.mission-stage-link:focus-visible {
  outline: 1px solid var(--mission-accent);
  outline-offset: 3px;
}

.mission-stage-feedback {
  min-height: 1.2rem;
  margin: 0;
  color: #e6c2cb;
  letter-spacing: 0.08em;
  font-size: 0.79rem;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 120ms ease;
}

.mission-stage-feedback.is-visible {
  opacity: 1;
}

.mission-stage-feedback.is-error {
  color: #e6c2cb;
}

.mission-stage-feedback.is-success {
  color: #f3dfe4;
}

@keyframes mission-stage-fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mission-stage-panel {
    animation: none;
  }
}

@media (max-width: 620px) {
  .mission-stage-shell {
    padding: 1rem;
  }

  .mission-stage-panel {
    gap: 0.68rem;
    padding: 1.3rem 0.85rem 1.45rem;
  }

  .mission-stage-form {
    margin-top: 0.8rem;
    width: min(100%, 20rem);
  }

  .mission-stage-form--coordinates {
    width: 100%;
  }

  .mission-stage-coordinate-group {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .mission-stage-coordinate-comma {
    display: none;
  }

  .mission-stage-input,
  .mission-stage-button,
  .mission-stage-link {
    height: 2.76rem;
  }
}