:root {
  --bg: #f1f5f9;
  --panel: #e2e8f0;
  --panel-strong: #cbd5e1;
  --text: #0f172a;
  --text-muted: #475569;
  --accent: #0f766e;
  --danger: #b91c1c;
  --warn: #b45309;
  --info: #1d4ed8;
  --border: #94a3b8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Segoe UI", "Noto Sans", "Liberation Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  touch-action: none;
  overscroll-behavior: none;
}

.app {
  height: 100dvh;
  width: 100vw;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 0.75rem;
  padding-top: max(0.75rem, env(safe-area-inset-top));
  padding-right: max(0.75rem, env(safe-area-inset-right));
  padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
  padding-left: max(0.75rem, env(safe-area-inset-left));
}

.top {
  display: grid;
  gap: 0.35rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.15rem, 2.4vh, 1.5rem);
  letter-spacing: 0.02em;
}

.status {
  margin: 0;
  font-weight: 700;
  font-size: clamp(0.9rem, 1.8vh, 1rem);
}

.status.connected {
  color: var(--accent);
}

.status.connecting {
  color: var(--info);
}

.status.retrying {
  color: var(--warn);
}

.status.error,
.status.disconnected {
  color: var(--danger);
}

.retry-btn {
  width: fit-content;
  border: 2px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 0.55rem;
  padding: 0.4rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.controller {
  min-height: 0;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.dpad {
  height: min(56vh, 62vw);
  max-height: 340px;
  max-width: 340px;
  width: 100%;
  justify-self: center;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 0.45rem;
}

.actions {
  min-height: min(38vh, 320px);
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  align-content: center;
}

.extras {
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  gap: 0.5rem;
}

.control-btn {
  border: 2px solid var(--border);
  border-radius: 0.9rem;
  background: var(--panel);
  color: var(--text);
  min-height: 3.35rem;
  font-size: clamp(0.95rem, 2.1vh, 1.15rem);
  font-weight: 700;
  line-height: 1;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
  text-transform: none;
}

.control-btn.active {
  background: var(--panel-strong);
  border-color: #64748b;
}

.dpad-btn[data-slot='up'] {
  grid-column: 2;
  grid-row: 1;
}

.dpad-btn[data-slot='left'] {
  grid-column: 1;
  grid-row: 2;
}

.dpad-btn[data-slot='right'] {
  grid-column: 3;
  grid-row: 2;
}

.dpad-btn[data-slot='down'] {
  grid-column: 2;
  grid-row: 3;
}

.action-btn {
  border-radius: 999px;
  aspect-ratio: 1;
  width: 100%;
}

@media (orientation: landscape) {
  .app {
    gap: 0.65rem;
  }

  .controller {
    gap: 1rem;
  }

  .dpad {
    height: min(74vh, 320px);
  }

  .actions {
    min-height: min(68vh, 320px);
    max-width: 360px;
    justify-self: center;
  }
}

@media (orientation: portrait) {
  .controller {
    grid-template-columns: 1fr 1fr;
  }

  .dpad {
    height: min(48vh, 72vw);
  }
}