/* Crosswind — the glass. Everything here sits over a 3D canvas, so the instruments are dark,
   thin and luminous: readable against bright sky and dark sea without blocking the view. */

:root {
  --glass: rgba(9, 14, 20, 0.62);
  --edge: rgba(150, 230, 255, 0.22);
  --lit: #7fe7ff;
  --ok: #56f08a;
  --warn: #ffc34d;
  --bad: #ff5a5a;
  --ink: #e8f4fb;
  --mono: "Share Tech Mono", ui-monospace, monospace;
  --disp: "Barlow Condensed", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
/* a display rule outranks the hidden attribute, so say it once and loudly */
[hidden] { display: none !important; }
html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #0b1016;
  color: var(--ink);
  font-family: var(--disp);
  -webkit-user-select: none;
  user-select: none;
  touch-action: none;
}
#view { position: fixed; inset: 0; width: 100%; height: 100%; display: block; }

/* ---------- loading ---------- */

.loading {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  background: radial-gradient(ellipse at 50% 40%, #16324a, #070c12 70%);
}
.brand {
  margin: 0;
  font-size: clamp(42px, 11vw, 78px);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  text-shadow: 0 0 40px rgba(127, 231, 255, 0.35);
}
.loading-sub { margin: 6px 0 0; text-align: center; font-family: var(--mono); font-size: 13px; color: var(--lit); letter-spacing: 0.1em; }

/* ---------- hud frame ---------- */

.hud { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
.hud > * { position: absolute; }

/* heading ribbon */
.ribbon-wrap {
  top: calc(8px + env(safe-area-inset-top, 0px));
  left: 50%;
  transform: translateX(-50%);
  width: min(420px, 74vw);
  height: 34px;
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--edge);
  border-radius: 8px;
  backdrop-filter: blur(6px);
}
.ribbon {
  position: absolute;
  top: 0;
  left: 50%;
  display: flex;
  height: 100%;
  align-items: center;
  will-change: transform;
}
.ribbon span {
  display: inline-block;
  width: 120px;      /* 30° of heading at 4px per degree */
  margin-left: -60px;
  text-align: center;
  font-family: var(--mono);
  font-size: 13px;
  color: rgba(232, 244, 251, 0.75);
}
.ribbon-mark {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 12px;
  background: var(--lit);
  transform: translateX(-50%);
}
.ribbon-read {
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 15px;
  color: var(--lit);
  text-shadow: 0 0 12px rgba(127, 231, 255, 0.6);
}

/* speed and altitude tapes */
.tape {
  top: 50%;
  transform: translateY(-50%);
  width: 92px;
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  background: var(--glass);
  border: 1px solid var(--edge);
  border-radius: 10px;
  backdrop-filter: blur(6px);
}
.tape.left { left: 12px; }
.tape.right { right: 12px; }
.tape-label { font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(232, 244, 251, 0.55); }
.tape-val { font-family: var(--mono); font-size: 30px; line-height: 1.05; color: var(--lit); text-shadow: 0 0 14px rgba(127, 231, 255, 0.45); }
.tape-unit { font-size: 11px; letter-spacing: 0.1em; color: rgba(232, 244, 251, 0.5); }
.tape-sub { margin-top: 6px; font-family: var(--mono); font-size: 12px; color: rgba(232, 244, 251, 0.8); }

/* attitude indicator */
/* the attitude ball sits low and to the centre, where a panel would be — never over the view
   you are flying through */
.attitude {
  left: 50%;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  width: 156px;
  height: 156px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--edge);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  opacity: 0.92;
}
.horizon, .horizon-inner { position: absolute; inset: -60%; }
.horizon { will-change: transform; }
.sky-half, .ground-half { position: absolute; left: 0; right: 0; height: 50%; }
.sky-half { top: 0; background: linear-gradient(180deg, #2a70b8, #79b6e8); }
.ground-half { bottom: 0; background: linear-gradient(180deg, #7a5a34, #4b3a22); }
.horizon-inner::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 2px;
  background: rgba(255, 255, 255, 0.9);
}
.pitch-ladder i {
  position: absolute;
  left: 50%;
  top: calc(50% - var(--p) * 1.9px);
  width: 46px;
  height: 1px;
  margin-left: -23px;
  background: rgba(255, 255, 255, 0.7);
}
.wings {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 96px;
  height: 12px;
  transform: translate(-50%, -50%);
  border-left: 34px solid var(--warn);
  border-right: 34px solid var(--warn);
  border-bottom: 2px solid var(--warn);
  box-sizing: border-box;
}
.stall {
  position: absolute;
  left: 50%;
  top: 22%;
  transform: translateX(-50%);
  padding: 3px 12px;
  border-radius: 4px;
  background: var(--bad);
  color: #1a0505;
  font-weight: 700;
  letter-spacing: 0.22em;
  font-size: 13px;
  animation: flash 0.55s steps(1) infinite;
}
@keyframes flash { 50% { opacity: 0.25; } }

/* engine panel */
.panel {
  left: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  display: flex;
  align-items: stretch;
  gap: 10px;
  padding: 10px 12px;
  background: var(--glass);
  border: 1px solid var(--edge);
  border-radius: 10px;
  backdrop-filter: blur(6px);
}
.throttle-gauge {
  position: relative;
  width: 12px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}
.throttle-fill { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(180deg, var(--lit), #2f8fb5); transition: height 0.12s linear; }
.throttle-gauge { cursor: ns-resize; touch-action: none; }
.throttle-gauge:focus-visible { outline: 2px solid var(--lit); outline-offset: 2px; }
.throttle-ticks { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: space-between; padding: 2px 0; pointer-events: none; }
.throttle-ticks i { display: block; height: 1px; background: rgba(232, 244, 251, 0.28); }
.throttle-knob {
  position: absolute;
  left: -2px;
  right: -2px;
  height: 3px;
  border-radius: 2px;
  background: var(--ink);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.7);
  transition: bottom 0.12s linear;
  pointer-events: none;
}
.panel dl { margin: 0; display: grid; gap: 2px; }
.panel dl div { display: flex; justify-content: space-between; gap: 14px; }
.panel dt { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(232, 244, 251, 0.5); }
.panel dd { margin: 0; font-family: var(--mono); font-size: 12.5px; color: var(--ink); }
.panel dd.ok { color: var(--ok); }
.panel dd.warn { color: var(--warn); }
.fuel { align-self: end; width: 10px; height: 54px; border-radius: 5px; background: rgba(255, 255, 255, 0.1); overflow: hidden; transform: rotate(180deg); }
.fuel span { display: block; height: 100%; background: linear-gradient(90deg, var(--ok), #2f8f5a); }

/* map */
.map {
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  width: 128px;
  padding: 6px 6px 4px;
  background: var(--glass);
  border: 1px solid var(--edge);
  border-radius: 10px;
  backdrop-filter: blur(6px);
}
.map svg { display: block; width: 100%; height: auto; border-radius: 6px; }
.map-label { display: block; margin-top: 4px; text-align: center; font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.06em; color: rgba(232, 244, 251, 0.65); }

.cam-tag {
  left: 50%;
  bottom: calc(178px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--edge);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(232, 244, 251, 0.8);
}

.plane-tag {
  left: 50%;
  bottom: calc(198px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  padding: 3px 12px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--edge);
  font-family: var(--disp);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lit);
}

/* the hangar */
.hangar { width: min(560px, calc(100vw - 32px)); }
.planes { display: grid; gap: 8px; margin-bottom: 16px; }
.plane-card {
  display: grid;
  gap: 2px;
  padding: 12px 14px;
  text-align: left;
  border-radius: 10px;
  border: 1px solid var(--edge);
  background: rgba(127, 231, 255, 0.05);
  color: var(--ink);
  cursor: pointer;
}
.plane-card:hover { background: rgba(127, 231, 255, 0.12); }
.plane-card.on { border-color: var(--lit); background: rgba(127, 231, 255, 0.18); }
.plane-card strong { font-size: 17px; font-weight: 700; letter-spacing: 0.04em; }
.plane-spec { font-family: var(--mono); font-size: 11.5px; color: var(--lit); }
.plane-blurb { font-size: 13.5px; color: rgba(232, 244, 251, 0.72); line-height: 1.35; }

.msg {
  left: 50%;
  top: calc(56px + env(safe-area-inset-top, 0px));
  transform: translateX(-50%);
  margin: 0;
  max-width: min(560px, 88vw);
  padding: 8px 16px;
  text-align: center;
  border-radius: 8px;
  background: var(--glass);
  border: 1px solid var(--edge);
  backdrop-filter: blur(6px);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--ink);
}

/* ---------- touch controls: hidden on anything with a real pointer ---------- */

.touch { position: fixed; inset: 0; z-index: 12; pointer-events: none; display: none; }
@media (hover: none) and (pointer: coarse) { .touch { display: block; } }
.stick {
  position: absolute;
  left: 16px;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  width: 132px;
  height: 132px;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: rgba(9, 14, 20, 0.35);
  pointer-events: auto;
}
.knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 52px;
  height: 52px;
  margin: -26px 0 0 -26px;
  border-radius: 50%;
  background: rgba(127, 231, 255, 0.35);
  border: 1px solid var(--lit);
}
.throttle {
  position: absolute;
  right: 16px;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  width: 56px;
  height: 148px;
  border-radius: 12px;
  border: 1px solid var(--edge);
  background: rgba(9, 14, 20, 0.35);
  pointer-events: auto;
  display: grid;
  place-items: end center;
  padding-bottom: 6px;
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(232, 244, 251, 0.6);
}
.touch-btns {
  position: absolute;
  right: 16px;
  top: calc(56px + env(safe-area-inset-top, 0px));
  display: grid;
  gap: 6px;
  pointer-events: auto;
}
.touch-btns button {
  width: 56px;
  padding: 9px 0;
  border-radius: 8px;
  border: 1px solid var(--edge);
  background: var(--glass);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
}

/* ---------- cards ---------- */

.card {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 20;
  transform: translate(-50%, -50%);
  width: min(420px, calc(100vw - 32px));
  max-height: 86vh;
  overflow-y: auto;
  padding: 22px;
  border-radius: 14px;
  background: rgba(8, 13, 19, 0.92);
  border: 1px solid var(--edge);
  backdrop-filter: blur(10px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  pointer-events: auto;
}
.card h2 { margin: 0 0 8px; font-size: 26px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.card p { margin: 0 0 14px; color: rgba(232, 244, 251, 0.78); line-height: 1.45; }
.help-lead { font-size: 15.5px; }
.card dl { margin: 0 0 16px; display: grid; gap: 7px; }
.card dl div { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.card dt { font-family: var(--mono); font-size: 12.5px; color: var(--lit); }
.card dt em { font-style: normal; color: rgba(232, 244, 251, 0.45); }
.card dd { margin: 0; font-size: 14px; color: rgba(232, 244, 251, 0.8); text-align: right; }
.card-btns { display: flex; gap: 10px; }
.card-btns button {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--lit);
  background: rgba(127, 231, 255, 0.14);
  color: var(--ink);
  font-family: var(--disp);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.card-btns button:active { transform: translateY(1px); }

/* the pre-flight screen: two lists side by side, each scrolling on its own so that the summary
   and the Fly button never leave the screen. Declared after .card on purpose — both are single
   class selectors, so this one only wins by coming later. */
.preflight {
  width: min(880px, calc(100vw - 32px));
  max-height: min(86vh, 700px);
  padding: 20px 22px 18px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pf-lead { margin-bottom: 14px !important; flex: none; }
.pf-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 14px; min-height: 0; flex: 1 1 auto; }
.pf-col { min-width: 0; min-height: 0; display: flex; flex-direction: column; }
.pf-col > header {
  flex: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--edge);
}
.pf-col h3 { margin: 0; font-size: 13px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(232, 244, 251, 0.55); }
.pf-chosen { font-family: var(--mono); font-size: 12px; color: var(--lit); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pf-tabs { flex: none; display: flex; gap: 6px; margin-bottom: 8px; }
.pf-tabs button {
  flex: 1;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--edge);
  background: transparent;
  color: rgba(232, 244, 251, 0.7);
  font-family: var(--disp);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.pf-tabs button.on { border-color: var(--lit); background: rgba(127, 231, 255, 0.16); color: var(--ink); }
.pf-col .planes { flex: 1 1 auto; margin-bottom: 0; overflow-y: auto; min-height: 0; align-content: start; padding-right: 4px; }
.pf-badge {
  font-family: var(--mono);
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lit);
  border: 1px solid var(--edge);
  border-radius: 5px;
  padding: 1px 5px;
  vertical-align: 2px;
}
.pf-weather { flex: none; display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.pf-weather-label { font-size: 12px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(232, 244, 251, 0.55); }
.pf-weather-btns { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
.pf-weather-btns button {
  flex: 1 1 auto;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--edge);
  background: transparent;
  color: rgba(232, 244, 251, 0.72);
  font-family: var(--disp);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  white-space: nowrap;
}
.pf-weather-btns button.on { border-color: var(--lit); background: rgba(127, 231, 255, 0.16); color: var(--ink); }

.pf-summary {
  flex: none;
  margin: 0 0 12px !important;
  padding: 10px 12px;
  border-radius: 9px;
  border: 1px solid var(--edge);
  border-left: 3px solid var(--lit);
  background: rgba(127, 231, 255, 0.06);
  font-size: 14px;
  line-height: 1.4;
}
.pf-summary.tight { border-left-color: var(--warn); background: rgba(255, 195, 77, 0.08); }
.pf-summary.warn { border-left-color: var(--bad); background: rgba(255, 90, 90, 0.09); }
.preflight .card-btns { flex: none; }
.card-btns button.primary { flex: 1.6; background: var(--lit); color: #06121a; border-color: var(--lit); }

@media (max-width: 760px) {
  /* one column, but each list keeps its own scroll and a bounded height — dropping the bound
     let the lists overflow their grid rows and paint on top of each other */
  .preflight { padding: 16px 16px 14px; max-height: 88vh; }
  .pf-lead { font-size: 14px; margin-bottom: 10px !important; }
  .pf-cols { grid-template-columns: 1fr; gap: 12px; }
  .pf-col .planes { max-height: 25vh; overflow-y: auto; }
  .pf-summary { font-size: 13px; }
  .card-btns { flex-wrap: wrap; }
  .card-btns button { min-width: 44%; }
}

@media (max-width: 520px) {
  .attitude { width: 148px; height: 148px; }
  .tape { width: 76px; padding: 8px 6px; }
  .tape-val { font-size: 25px; }
  .map { width: 104px; }
}

/* ---------- the lesson panel ---------- */

.lesson {
  left: 50%;
  top: calc(52px + env(safe-area-inset-top, 0px));
  transform: translateX(-50%);
  width: min(430px, calc(100vw - 32px));
  padding: 12px 16px 14px;
  border-radius: 12px;
  background: var(--glass);
  border: 1px solid var(--lit);
  backdrop-filter: blur(8px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}
.lesson-bar { height: 3px; border-radius: 2px; background: rgba(255, 255, 255, 0.12); overflow: hidden; margin-bottom: 9px; }
.lesson-bar span { display: block; height: 100%; background: var(--lit); transition: width 0.4s ease; }
.lesson-step { margin: 0; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--lit); }
.lesson h3 { margin: 2px 0 4px; font-size: 19px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.lesson-say { margin: 0; font-size: 14.5px; line-height: 1.4; color: rgba(232, 244, 251, 0.85); }
.lesson-hint { margin: 8px 0 0; }
.lesson kbd, .card kbd {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 6px;
  border: 1px solid var(--edge);
  background: rgba(127, 231, 255, 0.14);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--lit);
}

/* ---------- wind ---------- */

.wind {
  right: 12px;
  top: calc(52px + env(safe-area-inset-top, 0px));
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px 6px 6px;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--edge);
  backdrop-filter: blur(6px);
  font-family: var(--mono);
  font-size: 11.5px;
  color: rgba(232, 244, 251, 0.85);
}
.wind svg { width: 26px; height: 26px; color: var(--lit); }