/* Mobile-first controller layout. Designed for landscape phone play but works in
   portrait too. The hard rules here exist to make a web page behave like a gamepad:
   no scrolling, no zoom, no text selection, no iOS tap-callout/flash. */

* {
  box-sizing: border-box;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;          /* kill scroll/pinch so multi-touch reaches our handlers */
  background: #1b1b1f;
  color: #e7e7ea;
  font-family: -apple-system, system-ui, sans-serif;
}

.status {
  position: fixed;
  top: env(safe-area-inset-top, 0);
  left: 0;
  right: 0;
  text-align: center;
  padding: 6px;
  font-size: 13px;
  letter-spacing: 0.04em;
  z-index: 10;
}
.status--connecting { background: #6b5d1b; }
.status--connected  { background: #1f5d2b; }
.status--disconnected { background: #6b1f24; }

.pad {
  position: relative;
  height: 100%;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr auto;   /* row 1: d-pad + face, row 2: start/select */
  align-items: center;
  /* Safe-area aware on every edge so the layout clears the notch / home indicator
     in landscape (left/right insets) as well as the status bar (top). */
  padding:
    max(env(safe-area-inset-top, 0), 28px)
    max(env(safe-area-inset-right, 0), 24px)
    env(safe-area-inset-bottom, 16px)
    max(env(safe-area-inset-left, 0), 24px);
  gap: 12px;
}

/* --- L / R shoulders: a centered banner near the top of the pad, just below the
       connection-status strip. Absolutely positioned + out of flow, so it never
       shifts the d-pad / A-B layout, which stays exactly as the original below. --- */
.pad__shoulders {
  position: absolute;
  top: calc(env(safe-area-inset-top, 0px) + 36px);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 16px;
  z-index: 5;
}

/* --- D-pad: a 3x3 grid with the four arrows on the cross. --- */
.pad__dpad {
  grid-column: 1;
  grid-row: 1;
  justify-self: center;
  display: grid;
  grid-template-columns: repeat(3, 64px);
  grid-template-rows: repeat(3, 64px);
}
.btn--up    { grid-column: 2; grid-row: 1; border-radius: 12px 12px 0 0; }
.btn--left  { grid-column: 1; grid-row: 2; border-radius: 12px 0 0 12px; }
.btn--right { grid-column: 3; grid-row: 2; border-radius: 0 12px 12px 0; }
.btn--down  { grid-column: 2; grid-row: 3; border-radius: 0 0 12px 12px; }

/* --- Face buttons A/B, offset like a real pad (A lower-right). --- */
.pad__face {
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 28px;
}
.btn--ab {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  font-size: 28px;
  font-weight: 700;
}
.btn--a { transform: translateY(-18px); background: #b23b3b; }
.btn--b { transform: translateY(18px);  background: #b27a3b; }

/* --- Start / Select centered along the bottom. --- */
.pad__system {
  grid-column: 1 / 3;
  grid-row: 2;
  justify-self: center;
  display: flex;
  gap: 22px;
}
.btn--sys {
  height: 34px;
  padding: 0 18px;
  border-radius: 17px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* --- Top chrome clusters: fixed to the corners, above the status bar. The left
       holds the fullscreen toggle; the right holds EXIT. The centered
       connection-status text shows between them. --- */
.chrome {
  position: fixed;
  top: env(safe-area-inset-top, 0);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  z-index: 11;
}
.chrome--left  { left: max(env(safe-area-inset-left, 0), 8px); }
.chrome--right { right: max(env(safe-area-inset-right, 0), 8px); }
.chrome .btn {
  height: 28px;
  border-radius: 0 0 12px 12px;
  opacity: 0.9;
}

/* Fullscreen toggle. Uses the Fullscreen API where it exists (Android / desktop /
   iPad); on iPhone Safari (no Fullscreen API) it opens the Add-to-Home-Screen help.
   Hidden once running standalone. */
.btn--fs {
  width: 38px;
  padding: 0;
  font-size: 16px;
  background: #2f3a4a;
}
.btn--fs[hidden] { display: none; }

/* Stream-mode toggle, sits left of the fullscreen button. */
.btn--mode {
  width: 38px;
  padding: 0;
  font-size: 16px;
  background: #2f3a4a;
}
.btn--mode[aria-pressed="true"] { background: #1f5d2b; }

/* Save/Load-state button (★), in the left chrome cluster. */
.btn--state {
  width: 38px;
  padding: 0;
  font-size: 17px;
  background: #2f3a4a;
}

/* --- Split "stream mode": live game video up top, controller below. All scoped to
       body.mode-stream so the default full-screen pad layout is byte-for-byte unchanged
       when the mode is off. --- */
.stream-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 50vh;
  display: none;                 /* shown only via body.mode-stream below */
  align-items: center;
  justify-content: center;
  background: #000;
  z-index: 8;                    /* under the fixed chrome/status, over the pad */
  pointer-events: none;          /* never intercept touches meant for nothing */
  padding-top: env(safe-area-inset-top, 0);
}
.stream-panel[hidden] { display: none; }
body.mode-stream .stream-panel { display: flex; }
.stream-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;           /* letterbox; never crop or stretch the game */
  display: block;
}
.stream-msg {
  position: absolute;
  color: #9aa0ad;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.stream-msg[hidden] { display: none; }

/* Push the pad into the bottom half and shrink the controls so the d-pad + face
   cluster fit comfortably in 50vh (independent of the portrait width breakpoint). */
body.mode-stream .pad {
  height: 50vh;
  margin-top: 50vh;
  padding-top: 18px;
}
body.mode-stream .pad__shoulders { top: 6px; }
body.mode-stream .pad__dpad {
  grid-template-columns: repeat(3, 52px);
  grid-template-rows: repeat(3, 52px);
}
body.mode-stream .pad__face { gap: 14px; }
body.mode-stream .btn--ab {
  width: 64px;
  height: 64px;
  font-size: 22px;
}

/* L / R shoulder buttons — the centered .pad__shoulders banner near the top. */
.btn--shoulder {
  height: 40px;
  min-width: 104px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: #2f3a4a;
}

/* Exit-to-EmulationStation (fires the RetroArch exit hotkey). */
.btn--exit {
  padding: 0 14px;
  font-size: 11px;
  letter-spacing: 0.08em;
  background: #3a2f4a;
}

/* --- Reboot the Pi: bottom-right, clear of the thumbs. Muted danger color; a
       two-tap confirm dialog (controller.js) guards against accidental taps. --- */
.btn--reboot {
  position: fixed;
  bottom: max(env(safe-area-inset-bottom, 0), 8px);
  right: max(env(safe-area-inset-right, 0), 8px);
  height: 30px;
  padding: 0 14px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffd9df;
  background: #5a2330;
  opacity: 0.92;
  z-index: 11;
}

/* --- Add-to-Home-Screen help overlay: the only chrome-free path on iPhone. --- */
.fs-help {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.66);
}
.fs-help[hidden] { display: none; }
.fs-help__card {
  max-width: 320px;
  background: #26262c;
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  line-height: 1.45;
  font-size: 15px;
}
.fs-help__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}
.fs-help p { margin: 0 0 14px; }
.fs-help__close {
  border: none;
  border-radius: 10px;
  padding: 10px 22px;
  font: inherit;
  font-weight: 600;
  color: #f2f2f4;
  background: #3a6df0;
}
/* Side-by-side actions for the reboot confirm dialog. */
.fs-help__actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.fs-help__danger {
  border: none;
  border-radius: 10px;
  padding: 10px 22px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: #c0392b;
}

/* --- Shared button look + pressed feedback. --- */
.btn {
  border: none;
  color: #f2f2f4;
  background: #34343c;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
}
.btn--dir { font-size: 20px; }
.btn.is-pressed {
  filter: brightness(1.5);
  transform-origin: center;
}
.btn--a.is-pressed { transform: translateY(-18px) scale(0.92); }
.btn--b.is-pressed { transform: translateY(18px) scale(0.92); }

/* --- Narrow screens (phones in portrait): each grid column is only half the
       width, so shrink the d-pad and A/B cluster to fit instead of letting the
       rightmost (A) button clip off the screen edge. Landscape phones are
       >= 667px wide and keep the full-size controls above. --- */
@media (max-width: 430px) {
  .pad {
    padding-left: max(env(safe-area-inset-left, 0), 12px);
    padding-right: max(env(safe-area-inset-right, 0), 12px);
    gap: 8px;
  }
  .pad__dpad {
    grid-template-columns: repeat(3, 56px);
    grid-template-rows: repeat(3, 56px);
  }
  .pad__face { gap: 16px; }
  .btn--ab {
    width: 72px;
    height: 72px;
    font-size: 24px;
  }
}