:root {
  color-scheme: dark;
  --ink: #eaf7ff;
  --muted: #92a9b8;
  --cyan: #66e8ff;
  --amber: #ffc865;
  --panel: rgba(6, 17, 27, 0.9);
  --line: rgba(102, 232, 255, 0.25);
}

* { box-sizing: border-box; }

html { min-height: 100%; background: #02070c; }

body {
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(rgba(102, 232, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 232, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% -10%, #173449 0, #06111c 43%, #02070c 78%);
  background-size: 32px 32px, 32px 32px, auto;
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
}

button { font: inherit; }

.mission-shell {
  width: min(100%, 780px);
  margin: 0 auto;
  padding: clamp(18px, 4vw, 44px) clamp(12px, 3vw, 28px) 36px;
}

.mission-header { margin: 0 auto 18px; max-width: 560px; }
.eyebrow { margin: 0 0 8px; color: var(--cyan); font: 700 .72rem/1.3 ui-monospace, monospace; letter-spacing: .2em; }
h1 { margin: 0; font-size: clamp(2rem, 7vw, 4rem); line-height: .98; letter-spacing: -.04em; }
h1 span { display: inline-block; color: var(--amber); font-size: .36em; letter-spacing: .08em; vertical-align: middle; }
.mission-header > p:last-child { color: var(--muted); line-height: 1.7; }

.game-panel {
  width: min(100%, 540px);
  margin: 0 auto;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .45), inset 0 1px rgba(255,255,255,.04);
}

.telemetry { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-bottom: 9px; }
.telemetry p { margin: 0; padding: 7px 3px; border-top: 1px solid var(--line); color: var(--muted); font-size: .7rem; text-align: center; }
.telemetry strong { display: block; margin-top: 2px; color: var(--ink); font: 700 .88rem/1 ui-monospace, monospace; }

.viewport { position: relative; width: 100%; }
canvas { display: block; width: 100%; height: auto; aspect-ratio: 2 / 3; border: 1px solid rgba(102, 232, 255, .4); border-radius: 13px; background: #020613; image-rendering: pixelated; }
.launch-overlay { position: absolute; inset: 0; display: grid; place-content: center; gap: 14px; border-radius: 13px; background: rgba(1, 7, 12, .77); text-align: center; backdrop-filter: blur(4px); }
.launch-overlay[hidden] { display: none; }
.launch-overlay p { color: var(--cyan); font: 700 .75rem/1.3 ui-monospace, monospace; letter-spacing: .14em; }

button { min-height: 44px; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: rgba(102, 232, 255, .08); cursor: pointer; touch-action: none; }
button:hover { background: rgba(102, 232, 255, .16); }
button:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }
.primary-action { min-width: 160px; padding: 0 24px; border-color: var(--cyan); color: #001019; background: var(--cyan); font-weight: 800; }
.primary-action:hover { background: #a1f2ff; }

.secondary-data { display: flex; justify-content: space-around; padding: 9px 4px 2px; color: var(--muted); font-size: .75rem; }
.secondary-data strong { color: var(--ink); }
.game-status { margin: 6px 0 8px; color: var(--cyan); font: 700 .72rem/1.4 ui-monospace, monospace; text-align: center; }

.touch-console { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: center; }
.direction-pad { display: grid; grid-template: repeat(2, 44px) / repeat(3, 44px); justify-content: center; gap: 4px; }
.direction-pad button:nth-child(1) { grid-column: 2; }
.direction-pad button:nth-child(2) { grid-column: 1; grid-row: 2; }
.direction-pad button:nth-child(3) { grid-column: 2; grid-row: 2; }
.direction-pad button:nth-child(4) { grid-column: 3; grid-row: 2; }
.action-pad { display: grid; grid-template-columns: 1.2fr .8fr; gap: 7px; }
.action-pad button:first-child { border-color: rgba(255, 200, 101, .55); color: var(--amber); font: 800 .75rem/1 ui-monospace, monospace; }
.action-pad button:last-child { color: #ff9c88; font: 700 .68rem/1 ui-monospace, monospace; }
.task-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }

.flight-notes { max-width: 540px; margin: 18px auto 0; padding: 16px 18px; border-left: 2px solid var(--amber); color: var(--muted); background: rgba(255,255,255,.025); }
.flight-notes p:last-child { margin: 0; font-size: .86rem; line-height: 1.75; }

@media (min-width: 680px) {
  .touch-console { opacity: .92; }
}

@media (max-width: 420px) {
  .mission-shell { padding-inline: 8px; }
  .game-panel { padding: 8px; border-radius: 16px; }
  .mission-header { padding-inline: 5px; }
  .telemetry p { font-size: .62rem; }
  .telemetry strong { font-size: .78rem; }
  .direction-pad { grid-template: repeat(2, 42px) / repeat(3, 42px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}