* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #05070f;
  color: #e6eefc;
  font-family: "Courier New", ui-monospace, monospace;
  overflow: hidden;
  /* No rubber banding, no pinch zoom, no text selection while you are playing. */
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#screen { touch-action: none; }

#app {
  position: relative;
  width: 100vw;
  /* 100vh on iOS counts the browser chrome, so the bottom of the layout - the
     on-screen controls, the launch button - ends up under it. dvh is the part
     you can actually see; the vh line stays as a fallback. */
  height: 100vh;
  height: 100dvh;
  display: grid;
  place-items: center;
}

/* The playfield is a fixed shape and the renderer letterboxes itself into
   whatever it is given, so the canvas simply takes the whole window and the
   game paints the bars itself. */
#screen {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: block;
  background: #04060c;
  outline: none;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(4, 7, 16, 0.72);
  backdrop-filter: blur(2px);
  z-index: 10;
}

.overlay.hidden { display: none; }

.row.hidden { display: none; }

.panel {
  width: min(580px, 92vw);
  max-height: 92vh;
  max-height: 92dvh;
  overflow: auto;
  padding: 26px 30px;
  background: #101828;
  border: 2px solid #2f4a72;
  box-shadow: inset 0 0 0 2px #070c16, 0 10px 40px rgba(0, 0, 0, 0.6);
}

.panel.small { width: min(340px, 90vw); text-align: center; }

h1 {
  margin: 0;
  font-size: 36px;
  letter-spacing: 4px;
  color: #58e6ff;
  text-shadow: 3px 3px 0 #123049;
}

h1 span { display: block; color: #ffca4d; text-shadow: 3px 3px 0 #4a2c05; }

h2 { margin: 0 0 18px; letter-spacing: 3px; color: #58e6ff; }

.tag { margin: 6px 0 22px; color: #8ba3c7; font-size: 13px; letter-spacing: 1px; }

.row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.row label {
  width: 92px;
  font-size: 13px;
  color: #8ba3c7;
  letter-spacing: 1px;
}

.btns { display: flex; gap: 8px; flex-wrap: wrap; }

button, select {
  font-family: inherit;
  font-size: 13px;
  padding: 9px 14px;
  color: #e6eefc;
  background: #1b2a42;
  border: 2px solid #2f4a72;
  cursor: pointer;
  letter-spacing: 1px;
}

button:hover, select:hover { background: #243755; }

button.active { background: #58e6ff; color: #06121c; border-color: #58e6ff; font-weight: bold; }

button.primary {
  width: 100%;
  margin-top: 18px;
  padding: 13px;
  font-size: 17px;
  font-weight: bold;
  background: #ffca4d;
  color: #17110a;
  border-color: #c79a1e;
}

button.primary:hover { background: #ffdd85; }

.panel.small button { width: 100%; margin-top: 8px; }

.keys {
  width: 100%;
  margin: 18px 0 4px;
  border-collapse: collapse;
  font-size: 12px;
}

.keys th, .keys td {
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid #22334e;
}

.keys th { color: #8ba3c7; font-weight: normal; letter-spacing: 1px; }

.keys td .bind {
  min-width: 74px;
  padding: 5px 8px;
  font-size: 12px;
  letter-spacing: 0;
}

.keys td .bind.listening {
  background: #58e6ff;
  color: #06121c;
  border-color: #58e6ff;
}

.keys td .bind.clash {
  border-color: #ff7a5a;
  color: #ff9d85;
}

.preset { width: 100%; padding: 5px 6px; font-size: 11px; letter-spacing: 0; }

#bindHint.warn { color: #ff9d85; }

.hints {
  margin: 12px 0 0;
  padding-left: 18px;
  font-size: 12px;
  line-height: 1.7;
  color: #b9c9e2;
}

.hints b { color: #ffca4d; }

/* --- online --- */

.explain, .fineprint {
  font-size: 12px;
  line-height: 1.7;
  color: #b9c9e2;
}

.explain b { color: #ffca4d; }

.fineprint { margin: 16px 0 0; color: #7488a6; }

.fineprint code { color: #b9c9e2; }

.code {
  margin: 16px 0 6px;
  padding: 14px;
  font-size: 44px;
  font-weight: bold;
  letter-spacing: 14px;
  text-indent: 14px;
  text-align: center;
  color: #58e6ff;
  background: #0a1424;
  border: 2px dashed #2f4a72;
}

.code.hidden { display: none; }

.status {
  min-height: 18px;
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: #8ba3c7;
}

.joinrow { display: flex; gap: 8px; margin-top: 12px; }

.joinrow input {
  flex: 1;
  padding: 11px 14px;
  font-family: inherit;
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 6px;
  text-align: center;
  text-transform: uppercase;
  color: #e6eefc;
  background: #0a1424;
  border: 2px solid #2f4a72;
}

.joinrow input::placeholder { color: #56698a; letter-spacing: 6px; }

.joinrow button { white-space: nowrap; }

button:disabled { opacity: 0.45; cursor: default; }
button:disabled:hover { background: #1b2a42; }
button.primary:disabled:hover { background: #ffca4d; }

/* A phone held sideways is about 400px tall. The panel scrolls, but a button
   you have to scroll to find is a button nobody presses, so the primary action
   sticks to the bottom of it and everything else gives up its spare room. */
.panelFooter {
  position: sticky;
  bottom: 0;
  z-index: 2;
  padding-top: 4px;
  background: #101828;
  box-shadow: 0 -12px 16px -8px rgba(16, 24, 40, 0.95);
}

@media (max-height: 560px) {
  .panel { padding: 14px 18px; max-height: 96dvh; }
  h1 { font-size: 22px; }
  h1 span { display: inline; margin-left: 8px; }
  .tag { margin: 4px 0 12px; font-size: 11px; }
  .row { margin-bottom: 8px; gap: 10px; }
  .row label { width: 76px; font-size: 11px; }
  button, select { padding: 6px 10px; font-size: 11px; }
  button.primary { margin-top: 10px; padding: 11px; font-size: 15px; }
  .explain, .fineprint, .hints { font-size: 11px; line-height: 1.5; }
  .keys th, .keys td { padding: 3px 6px; }
}

/* On a touch device the tips about the keyboard are a wall of text about keys
   you do not have - but the ones about the pod are the game, so they stay. */
@media (pointer: coarse) {
  #controlsBox .keys, #controlsBox #bindHint { display: none; }
}

details {
  margin: 14px 0 4px;
  border-top: 1px solid #22334e;
  border-bottom: 1px solid #22334e;
}

summary {
  padding: 9px 2px;
  font-size: 12px;
  letter-spacing: 1px;
  color: #8ba3c7;
  cursor: pointer;
}

summary:hover { color: #ffca4d; }

details[open] summary { color: #ffca4d; }

details .keys { margin-top: 0; }

/* A narrow screen has no room for a label beside its buttons: at 390 pixels the
   options wrapped into a ragged stack with one button stranded on the line
   above. The label goes over the top instead. */
@media (max-width: 520px) {
  .row {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .row label { width: auto; }

  .btns { flex-wrap: wrap; }
}

/* --- touch controls ---
   The playfield is fitted into the space above these rather than behind them:
   a thumb parked over the wave you are about to fly into is no way to play.
   The renderer is told how much room to leave. */

#touch {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none; /* only the controls themselves take touches */
  padding: 0 max(14px, env(safe-area-inset-left)) max(14px, env(safe-area-inset-bottom));
}

/* touch-action does not inherit, so saying it on the box the buttons sit in
   does nothing for the buttons. Without it on the button itself, holding fire
   is a long press, and a long press on a phone is a text selection - the
   callout comes up and the gun stops charging. */
#stick, #touchButtons, #touchButtons button, #knob, #btnPause {
  pointer-events: auto;
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#knob { pointer-events: none; }

/* The bottom-left corner is the stick. Eight ways, like the joystick this is
   imitating: the shared touch module measures from the middle of this box, so
   the box is deliberately large and the knob sits in the centre of it, where a
   thumb resting on the corner of the screen already is. */
#stick {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 170px;
  /* No tint of its own. In landscape the playfield reaches into this corner,
     and a faintly lit quarter of the screen reads as a bug rather than as a
     control: the knob is the only part of the stick worth drawing. */
  background: transparent;
}

#knob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 62px;
  height: 62px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(88, 230, 255, 0.55);
  border: 3px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

#touchButtons {
  position: absolute;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(30px, calc(env(safe-area-inset-bottom) + 18px));
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

#touchButtons button {
  border-radius: 50%;
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0;
  border-width: 3px;
}

/* FIRE is held for whole stages at a time, so it is the big one and it sits
   nearest the thumb; POD is a tap you make a few times a stage and sits above
   and inside, where a tap can reach it without letting go of the trigger. */
#btnFire {
  width: 100px;
  height: 100px;
  font-size: 15px;
  background: rgba(255, 202, 77, 0.72);
  color: #17110a;
  border-color: rgba(255, 255, 255, 0.55);
}

#btnPod {
  width: 68px;
  height: 68px;
  margin-bottom: 26px;
  background: rgba(88, 230, 255, 0.68);
  color: #06121c;
  border-color: rgba(255, 255, 255, 0.4);
}

#touchButtons button.pressed { filter: brightness(1.35); transform: scale(0.94); }

/* Pause, for a device with no Escape key. Top middle, small and quiet: the
   score lives in the left corner and the stage name in the right, and this is
   the one control you must never hit by accident while dodging. */
#btnPause {
  position: absolute;
  left: 50%;
  top: max(6px, env(safe-area-inset-top));
  transform: translateX(-50%);
  width: 46px;
  height: 34px;
  padding: 0;
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 2px;
  color: #e6eefc;
  background: rgba(10, 20, 36, 0.5);
  border: 2px solid rgba(88, 230, 255, 0.4);
  border-radius: 8px;
}

#btnPause:active { background: rgba(88, 230, 255, 0.55); color: #06121c; }

/* Online there is nothing to pause: the other player is not waiting for you. */
#touch.online #btnPause { display: none; }

/* --- Who is in the room -------------------------------------------------- */

.lobby {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 10px 0 4px;
}

.seat {
  padding: 10px 4px;
  font-size: 11px;
  letter-spacing: 1px;
  text-align: center;
  color: #56698a;
  background: #0a1424;
  border: 2px dashed #22334e;
}

.seat.taken {
  color: #06121c;
  border-style: solid;
  font-weight: bold;
}

.seat.you { box-shadow: inset 0 0 0 2px #ffca4d; }

.lobby.hidden { display: none; }

/* --- The score board ----------------------------------------------------- */

.scores {
  width: 100%;
  border-collapse: collapse;
  margin: 6px 0 0;
}

.scores td { padding: 3px 4px; color: #b9c9e2; }

.scores td.place { color: #7488a6; width: 2.2em; }
.scores td.name { color: #ffca4d; letter-spacing: 2px; }
.scores td.result { text-align: right; color: #58e6ff; font-weight: bold; }
.scores td.stage { color: #8ba3c7; text-align: right; }
.scores td.when { color: #7488a6; text-align: right; }
.scores tr.fresh td { color: #ffffff; }

/* The three letters, and a pair of arrows over and under each of them.
   The arrows are not a phone affordance bolted on the side: the picker used to
   be driven only by the game's own stick and fire button, and on a phone those
   live underneath this panel, where a tap cannot reach them. A run that earned
   a score had nowhere to go. They are shown on every device because clicking an
   arrow is nicer than hunting for the arrow keys anyway. */
.picker { margin: 18px 0 6px; }

.letters, .letterRow {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.letter, .panel.small .letterRow button {
  width: 64px;
}

.letter {
  display: block;
  padding: 6px 0;
  border: 2px solid #2f4a72;
  border-radius: 4px;
  font-size: 34px;
  text-align: center;
  color: #b9c9e2;
  cursor: pointer;
}

/* Big enough to hit with a thumb without looking, which is the whole point. */
.panel.small .letterRow button {
  margin: 6px 0;
  padding: 10px 0;
  font-size: 16px;
  line-height: 1;
}

.letter.on {
  border-color: #ffca4d;
  color: #ffca4d;
  /* The slot you are on blinks, the way the cabinet did it. */
  animation: blink 0.9s steps(2, start) infinite;
}

@keyframes blink { 50% { opacity: 0.35; } }

/* Generic and deliberately last: .overlay and .row set their own display with
   the same specificity, so this only wins by coming after them. Without it
   nothing with class="hidden" was ever actually hidden - the online panel sat
   underneath the one player menu the whole time. */
.hidden { display: none; }