:root {
  --font-display: 'Chakra Petch', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;
  --bg: #05070a;
  --surface: rgba(10, 14, 20, 0.62);
  --surface-strong: rgba(8, 11, 16, 0.86);
  --border: rgba(190, 220, 255, 0.12);
  --border-strong: rgba(190, 220, 255, 0.24);
  --text: #e9eef2;
  --muted: #8c98a4;
  --faint: #56616c;
  --hud: #a4ffcb;
  --accent: #ffb547;
  --accent-ink: #1a1206;
  --danger: #ff5566;
  --ok: #7dffb0;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg); overflow: hidden; }
body {
  font-family: var(--font-mono);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.hidden { display: none !important; }

#app { position: fixed; inset: 0; overflow: hidden; }
#scene, #hud { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#hud {
  pointer-events: none;
  filter: drop-shadow(0 0 1px rgba(0, 0, 0, 0.85)) drop-shadow(0 0 5px rgba(120, 255, 175, 0.28));
}
#vignette {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.55) 100%);
}
#whiteout { position: absolute; inset: 0; pointer-events: none; background: #d9dde2; opacity: 0; }
#flash { position: absolute; inset: 0; pointer-events: none; background: #e9f0ff; opacity: 0; mix-blend-mode: screen; }

.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
}
.dim { color: var(--muted); }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
}

kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 22px; height: 22px; padding: 0 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
}

/* ================= TITLE ================= */
.screen { position: absolute; inset: 0; }
.screen-title {
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(18px, 3vw, 40px) clamp(18px, 3.4vw, 56px);
  gap: 16px;
}
.title-shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(4, 6, 10, 0.78) 0%, rgba(4, 6, 10, 0.35) 42%, rgba(4, 6, 10, 0) 68%),
    linear-gradient(0deg, rgba(4, 6, 10, 0.92) 0%, rgba(4, 6, 10, 0.55) 30%, rgba(4, 6, 10, 0) 55%);
}
.brand { position: relative; display: flex; align-items: center; gap: 12px; color: var(--text); }
.logo { width: 30px; height: 30px; color: var(--hud); }
.brand-name { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.22em; font-size: 14px; }
.brand-sep { width: 28px; height: 1px; background: var(--border-strong); }

.title-block { position: relative; align-self: center; max-width: 720px; }
.eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.28em; color: var(--accent); font-weight: 500;
}
.eyebrow .tick { width: 22px; height: 2px; background: var(--accent); display: inline-block; }
.game-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(56px, 10.5vw, 148px);
  line-height: 0.88;
  letter-spacing: -0.01em;
  margin: 18px 0 18px -4px;
  color: var(--text);
}
.game-title span { color: transparent; -webkit-text-stroke: 1.5px rgba(233, 238, 242, 0.85); }
.lede { font-family: var(--font-display); font-size: clamp(16px, 1.5vw, 20px); color: #c4ccd4; max-width: 440px; line-height: 1.45; }

.title-bottom { position: relative; display: flex; flex-direction: column; gap: 18px; }
.missions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.mcard {
  position: relative; text-align: left;
  padding: 16px 18px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease), background 200ms var(--ease);
  display: flex; flex-direction: column; gap: 10px;
}
.mcard::before {
  content: ''; position: absolute; left: -1px; right: -1px; top: -1px; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 300ms var(--ease); border-radius: 6px 6px 0 0;
}
.mcard:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.mcard.sel { border-color: rgba(255, 181, 71, 0.55); background: var(--surface-strong); }
.mcard.sel::before { transform: scaleX(1); }
.mc-top { display: flex; justify-content: space-between; align-items: baseline; }
.mc-code { font-size: 11px; color: var(--accent); letter-spacing: 0.18em; }
.mc-diff { display: flex; gap: 3px; }
.mc-diff i { width: 14px; height: 3px; background: var(--faint); border-radius: 1px; }
.mc-diff i.on { background: var(--accent); }
.mc-name { font-family: var(--font-display); font-weight: 700; font-size: 22px; letter-spacing: 0.04em; }
.mc-desc { font-size: 12px; line-height: 1.55; color: #aab4be; min-height: 3.1em; }
.mc-cond { display: grid; grid-template-columns: repeat(4, auto); justify-content: space-between; gap: 8px; border-top: 1px solid var(--border); padding-top: 10px; }
.mc-cond div { display: flex; flex-direction: column; gap: 3px; }
.mc-cond b { font-weight: 500; font-size: 12px; color: var(--text); font-variant-numeric: tabular-nums; }
.mc-cond span { font-size: 10px; letter-spacing: 0.14em; color: var(--muted); }
.mc-best { font-size: 11px; color: var(--hud); letter-spacing: 0.1em; min-height: 14px; }

.title-footer { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.controls-ref { display: grid; grid-template-columns: repeat(4, auto); gap: 8px 22px; font-size: 12px; color: #aab4be; }
.controls-ref div { display: flex; align-items: center; gap: 5px; }
.controls-ref span { margin-left: 5px; }
.settings { display: flex; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.setting { display: flex; flex-direction: column; gap: 6px; }
.seg { display: flex; border: 1px solid var(--border-strong); border-radius: 5px; overflow: hidden; background: rgba(0,0,0,0.3); }
.seg button { padding: 8px 12px; font-size: 11px; letter-spacing: 0.14em; color: var(--muted); transition: background 150ms, color 150ms; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.on { background: rgba(164, 255, 203, 0.12); color: var(--hud); }
.seg button:hover:not(.on) { color: var(--text); }

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 14px;
  padding: 14px 22px;
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: 0.18em;
  border-radius: 5px;
  transition: filter 150ms, transform 150ms var(--ease);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-primary .k { font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.1em; padding: 3px 6px; border: 1px solid rgba(26, 18, 6, 0.35); border-radius: 3px; }
.btn-ghost {
  padding: 13px 18px; font-size: 12px; letter-spacing: 0.16em; color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 5px;
  transition: border-color 150ms, background 150ms;
}
.btn-ghost:hover { border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.04); }
button:focus-visible { outline: 2px solid var(--hud); outline-offset: 2px; }

/* ================= IN-FLIGHT ================= */
#ui-play { position: absolute; inset: 0; pointer-events: none; }
.mission-panel { position: absolute; left: 20px; top: 20px; padding: 14px 16px; width: 250px; }
.mp-row { display: flex; justify-content: space-between; }
.mp-score { display: flex; align-items: baseline; gap: 8px; margin: 8px 0 6px; }
#mp-score { font-family: var(--font-display); font-weight: 700; font-size: 34px; line-height: 1; font-variant-numeric: tabular-nums; }
.mp-obj { font-size: 12px; color: var(--accent); letter-spacing: 0.08em; }
.gate-pips { display: flex; gap: 4px; margin-top: 10px; }
.gate-pips i { flex: 1; height: 3px; background: rgba(255, 255, 255, 0.12); border-radius: 1px; }
.gate-pips i.done { background: var(--hud); }
.gate-pips i.cur { background: var(--accent); animation: pip 1s ease-in-out infinite; }
.gate-pips i.rwy { flex: 1.6; }
@keyframes pip { 50% { opacity: 0.35; } }
#mp-time { font-variant-numeric: tabular-nums; }

.radar-wrap { position: absolute; right: 20px; top: 20px; width: 200px; }
#radar { width: 200px; height: 200px; display: block; }
.radar-meta { display: flex; justify-content: space-between; margin-top: 6px; padding: 0 4px; font-size: 10px; }
.radar-meta .label { font-size: 10px; }

#feed { position: absolute; right: 20px; top: 262px; width: 240px; display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.feed-item {
  display: flex; justify-content: space-between; gap: 14px; width: 100%;
  padding: 8px 12px; font-size: 11px; letter-spacing: 0.1em;
  background: var(--surface); border: 1px solid var(--border); border-left: 2px solid var(--hud); border-radius: 4px;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  animation: feedIn 320ms var(--ease);
  transition: opacity 400ms, transform 400ms;
}
.feed-item b { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--hud); }
.feed-item.neg { border-left-color: var(--danger); }
.feed-item.neg b { color: var(--danger); }
.feed-item.info { border-left-color: var(--accent); }
.feed-item.info b { color: var(--accent); }
.feed-item.out { opacity: 0; transform: translateX(12px); }
@keyframes feedIn { from { opacity: 0; transform: translateX(16px); } }

.systems { position: absolute; left: 20px; bottom: 20px; display: flex; gap: 0; padding: 0; }
.sys { display: flex; flex-direction: column; gap: 5px; padding: 10px 14px; min-width: 70px; }
.sys + .sys { border-left: 1px solid var(--border); }
.sys .val { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; }
.sys .val.ok { color: var(--ok); }
.sys .val.warn { color: var(--accent); }
.sys .val.bad { color: var(--danger); }
.sys.thr { flex-direction: row; align-items: center; gap: 10px; min-width: 160px; }
.thr-bar { width: 70px; height: 6px; background: rgba(255, 255, 255, 0.1); border-radius: 3px; overflow: hidden; }
.thr-fill { height: 100%; width: 60%; background: var(--hud); transition: width 80ms linear; }
.thr-fill.ab { background: linear-gradient(90deg, var(--hud), var(--accent)); }

#banner {
  position: absolute; left: 50%; top: 21%; transform: translateX(-50%);
  text-align: center; opacity: 0; transition: opacity 400ms var(--ease), transform 400ms var(--ease);
}
#banner.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }
.banner-kicker { font-size: 11px; letter-spacing: 0.3em; color: var(--accent); margin-bottom: 6px; }
.banner-main { font-family: var(--font-display); font-weight: 700; font-size: clamp(22px, 3vw, 34px); letter-spacing: 0.1em; text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6); }

#hint {
  position: absolute; right: 20px; bottom: 22px; max-width: 360px;
  display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 14px; font-size: 11px; color: var(--muted); white-space: nowrap;
  transition: opacity 1s;
}
#hint span { display: flex; align-items: center; gap: 3px; }
#hint kbd { min-width: 18px; height: 18px; font-size: 10px; padding: 0 4px; }
#hint.fade { opacity: 0; }

/* ================= MODALS ================= */
.screen-modal { display: grid; place-items: center; background: rgba(3, 5, 8, 0.55); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); animation: fadeIn 300ms var(--ease); }
@keyframes fadeIn { from { opacity: 0; } }
.modal { padding: 28px 30px; width: min(420px, calc(100vw - 32px)); background: var(--surface-strong); }
.modal-title { font-family: var(--font-display); font-weight: 700; font-size: 40px; letter-spacing: 0.04em; margin: 10px 0 20px; }
.modal-actions { display: flex; flex-direction: column; gap: 10px; }
.modal-actions.row { flex-direction: row; flex-wrap: wrap; }
.modal-actions.row .btn-primary { flex: 1 1 auto; }

.debrief { width: min(560px, calc(100vw - 32px)); }
.db-head { display: flex; justify-content: space-between; gap: 20px; }
.db-reason { font-size: 12px; color: var(--muted); letter-spacing: 0.08em; margin-top: -10px; margin-bottom: 18px; }
.db-grade { display: flex; flex-direction: column; align-items: center; gap: 2px; }
#db-grade { font-family: var(--font-display); font-weight: 700; font-size: 72px; line-height: 1; color: var(--hud); }
#db-grade.fail { color: var(--danger); }
.db-rows { border-top: 1px solid var(--border); }
.db-row { display: grid; grid-template-columns: 1fr auto 90px; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 12px; opacity: 0; animation: rowIn 400ms var(--ease) forwards; }
.db-row .k { color: var(--muted); letter-spacing: 0.12em; }
.db-row .m { color: var(--text); font-variant-numeric: tabular-nums; text-align: right; }
.db-row .p { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--hud); }
.db-row .p.neg { color: var(--danger); }
.db-row .p.zero { color: var(--faint); }
@keyframes rowIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.db-total { display: flex; justify-content: space-between; align-items: baseline; margin: 16px 0 4px; }
#db-total { font-family: var(--font-display); font-weight: 700; font-size: 36px; font-variant-numeric: tabular-nums; }
.db-best { margin-bottom: 20px; font-size: 10px; }

/* ================= TOUCH ================= */
#touch { position: absolute; inset: 0; pointer-events: none; }
#stick {
  position: absolute; left: 28px; bottom: 90px; width: 150px; height: 150px; border-radius: 50%;
  border: 1px solid var(--border-strong); background: rgba(0, 0, 0, 0.25); pointer-events: auto;
}
#stick-knob { position: absolute; left: 50%; top: 50%; width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; background: rgba(164, 255, 203, 0.22); border: 1px solid var(--hud); }
.touch-right { position: absolute; right: 18px; bottom: 90px; display: flex; gap: 12px; align-items: flex-end; pointer-events: auto; }
#tthr { position: relative; width: 54px; height: 170px; border: 1px solid var(--border-strong); border-radius: 6px; background: rgba(0, 0, 0, 0.3); overflow: hidden; }
#tthr-fill { position: absolute; left: 0; right: 0; bottom: 0; height: 60%; background: rgba(164, 255, 203, 0.25); }
#tthr span { position: absolute; top: 6px; width: 100%; text-align: center; font-size: 10px; letter-spacing: 0.14em; }
.tbtns { display: grid; grid-template-columns: repeat(2, 64px); gap: 8px; }
.tbtns button { height: 48px; font-size: 11px; letter-spacing: 0.1em; border: 1px solid var(--border-strong); border-radius: 6px; background: rgba(0, 0, 0, 0.35); }
.tbtns button.act { background: rgba(255, 181, 71, 0.25); border-color: var(--accent); }
#rotate-hint { position: absolute; bottom: 300px; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--muted); text-align: center; width: max-content; max-width: 80vw; animation: hintOut 1s 5s forwards; pointer-events: none; }
@keyframes hintOut { to { opacity: 0; visibility: hidden; } }

@media (max-width: 1100px) {
  .controls-ref { grid-template-columns: repeat(2, auto); }
}
@media (max-width: 860px) {
  .missions { grid-template-columns: 1fr; gap: 8px; }
  .mc-desc, .mc-cond { display: none; }
  .mcard { padding: 12px 14px; gap: 6px; }
  .controls-ref { display: none; }
  .game-title { font-size: 64px; }
  .mission-panel { width: 200px; left: 10px; top: 10px; padding: 10px 12px; }
  #mp-score { font-size: 24px; }
  .radar-wrap, #radar { width: 130px; height: 130px; }
  .radar-wrap { right: 10px; top: 10px; height: auto; }
  .radar-meta { display: none; }
  #feed { top: 150px; right: 10px; width: 200px; }
  .systems { left: 10px; bottom: 10px; transform: scale(0.85); transform-origin: left bottom; }
  #hint { display: none; }
}
@media (max-width: 600px) {
  .systems { display: none; }
  .mission-panel { width: 170px; }
  .game-title { font-size: 50px; }
  .title-tag { display: none; }
  #banner { top: 205px; }
  #rotate-hint { display: none; }
}