:root {
  color-scheme: dark;
  --bg: #111413;
  --panel: #171b1a;
  --panel-2: #202625;
  --ink: #eef4ef;
  --muted: #9fb0a9;
  --accent: #e6b450;
  --ok: #61d394;
  --warn: #e6b450;
  --bad: #ff6b6b;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-shell {
  position: relative;
  display: grid;
  grid-template-rows: 44px minmax(0, 1fr);
  width: 100vw;
  height: 100vh;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(230, 180, 80, 0.08), transparent 30%),
    var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(17, 20, 19, 0.92);
}

.brand,
.status {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.brand {
  gap: 9px;
  letter-spacing: 0;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent);
  border-radius: 2px;
  box-shadow: inset 0 0 0 2px rgba(17, 20, 19, 0.9);
}

.status {
  gap: 8px;
  color: var(--muted);
  font-weight: 600;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--warn);
  box-shadow: 0 0 0 3px rgba(230, 180, 80, 0.16);
}

.status-dot.is-connected {
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(97, 211, 148, 0.16);
}

.status-dot.is-closed,
.status-dot.is-error {
  background: var(--bad);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.16);
}

.terminal-stage {
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  padding: 16px;
  overflow: auto;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    var(--panel);
  background-size: 18px 18px;
}

#terminal {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #000;
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.35);
}

.xterm {
  padding: 8px;
}

.xterm,
.xterm-screen,
.xterm-viewport,
.xterm-helper-textarea {
  letter-spacing: 0;
}

.xterm .xterm-viewport {
  background-color: #000;
}

.mobile-dpad {
  display: none;
}

@media (max-width: 680px) {
  .topbar {
    padding: 0 12px;
  }

  .terminal-stage {
    align-items: start;
    justify-content: start;
    padding: 0;
  }

  #terminal {
    border: 0;
    box-shadow: none;
  }

  .xterm {
    padding: 0;
  }

  .mobile-dpad {
    position: fixed;
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
    z-index: 5;
    display: grid;
    grid-template-columns: repeat(3, 46px);
    grid-template-rows: repeat(3, 46px);
    gap: 6px;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
  }

  .dpad-button {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(238, 244, 239, 0.24);
    border-radius: 8px;
    background: rgba(17, 20, 19, 0.82);
    color: var(--ink);
    font: 700 18px/1 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    -webkit-tap-highlight-color: transparent;
  }

  .dpad-button:active {
    transform: translateY(1px);
    border-color: rgba(230, 180, 80, 0.72);
    background: rgba(32, 38, 37, 0.94);
    color: var(--accent);
  }

  .dpad-up {
    grid-column: 2;
    grid-row: 1;
  }

  .dpad-left {
    grid-column: 1;
    grid-row: 2;
  }

  .dpad-down {
    grid-column: 2;
    grid-row: 3;
  }

  .dpad-enter {
    grid-column: 2;
    grid-row: 2;
    color: var(--accent);
  }

  .dpad-right {
    grid-column: 3;
    grid-row: 2;
  }
}