:root {
  --bg: #f3f4f6;
  --panel: #ffffff;
  --panel-2: #f8f9fb;
  --border: #dde1e7;
  --text: #1c2129;
  --muted: #6a7280;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --stage: #e6e8ec;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --shadow: 0 8px 30px rgba(15, 23, 42, .18);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-2: #1d212a;
    --border: #2a303b;
    --text: #e6e9ef;
    --muted: #8f98a8;
    --accent: #3b82f6;
    --accent-text: #ffffff;
    --stage: #0a0c10;
    --ok: #22c55e;
    --warn: #f59e0b;
    --err: #ef4444;
    --shadow: 0 8px 30px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

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

body {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
}

button, select, input { font: inherit; color: inherit; }

button, select {
  height: 32px;
  padding: 0 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
button:hover, select:hover { border-color: var(--muted); }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button:disabled { opacity: .5; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

/* ---- toolbar ---- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 8px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; white-space: nowrap; }

.group { display: flex; align-items: center; gap: 8px; }

.field { display: flex; align-items: center; gap: 6px; }
.field span { color: var(--muted); font-size: 12px; }
.field select { max-width: 260px; }

.check { display: flex; align-items: center; gap: 4px; color: var(--muted); font-size: 13px; cursor: pointer; }

.status { display: flex; align-items: center; gap: 8px; margin-left: auto; min-width: 0; color: var(--muted); }
#status { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats { font-variant-numeric: tabular-nums; font-size: 12px; white-space: nowrap; }

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.err { background: var(--err); }

/* ---- stage ---- */

.layout { flex: 1; display: flex; min-height: 0; }

.stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  background: var(--stage);
  outline: none;
  overflow: hidden;
}
.stage:focus-visible { box-shadow: inset 0 0 0 2px var(--accent); }

.screen {
  position: relative;
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: pointer;
}
.screen video, .screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  pointer-events: none;
}
/* In video mode the image is a sharp still laid over the video. */
.screen img { position: absolute; inset: 0; }
/* Direct mode frames come in the emulator panel's own orientation; app.js sizes and turns the canvas. */
.screen canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  display: block;
  pointer-events: none;
}

.ripples { position: absolute; inset: 0; pointer-events: none; }
.ripple {
  position: absolute;
  width: 36px;
  height: 36px;
  margin: -18px 0 0 -18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .45);
  animation: ripple .45s ease-out forwards;
}
.ripple.long { background: rgba(59, 130, 246, .55); }
@keyframes ripple { from { transform: scale(.3); opacity: 1; } to { transform: scale(1.4); opacity: 0; } }

.empty { max-width: 520px; padding: 24px; text-align: center; color: var(--muted); }
.empty h2 { margin: 0 0 8px; color: var(--text); font-size: 18px; font-weight: 600; }
.empty ol { text-align: left; padding-left: 20px; }
.empty li { margin: 6px 0; }
.empty code { background: var(--panel-2); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 12px; }
.empty .actions { display: flex; gap: 8px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }

/* ---- side buttons ---- */

.side {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  background: var(--panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
}
.side hr { width: 100%; border: 0; border-top: 1px solid var(--border); margin: 4px 0; }
.side button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 64px;
  height: 54px;
  padding: 4px;
  font-size: 11px;
  color: var(--muted);
}
.side button:hover { color: var(--text); }
.side svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.side button[data-key="back"] svg, .side button[data-key="volume_up"] svg path:first-child,
.side button[data-key="volume_down"] svg path:first-child { fill: currentColor; stroke: none; }
.side button[data-key="volume_up"] svg path:last-child, .side button[data-key="volume_down"] svg path:last-child { fill: none; }

/* ---- type bar ---- */

.typebar { padding: 8px 16px; background: var(--panel); border-top: 1px solid var(--border); }
.typebar form { display: flex; gap: 8px; }
.typebar input {
  flex: 1;
  min-width: 0;
  height: 32px;
  padding: 0 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* ---- toast ---- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 64px;
  max-width: min(560px, calc(100vw - 32px));
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transform: translate(-50%, 20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.err { border-color: var(--err); }

/* ---- fullscreen ---- */

body.is-full .toolbar, body.is-full .typebar { display: none; }

/* ---- login ---- */

body.login { align-items: center; justify-content: center; padding: 16px; }
.login-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 340px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.login-card h1 { margin: 0; font-size: 20px; }
.login-card p { margin: 0; color: var(--muted); }
.login-card input { height: 36px; padding: 0 10px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 6px; }
.login-card button { height: 36px; }
.login-error { color: var(--err) !important; }

/* ---- account dialog ---- */

.dialog {
  width: min(380px, calc(100vw - 32px));
  padding: 0;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.dialog::backdrop { background: rgba(0, 0, 0, .45); }
.dialog form { display: flex; flex-direction: column; gap: 10px; padding: 20px; }
.dialog h2 { margin: 0 0 4px; font-size: 18px; }
.dialog label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12px; }
.dialog input {
  height: 34px;
  padding: 0 10px;
  color: var(--text);
  font-size: 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.dialog label.check { flex-direction: row; align-items: center; gap: 6px; font-size: 13px; }
.dialog input[aria-invalid="true"] { border-color: var(--err); }
.dialog .hint { margin: 0; color: var(--muted); font-size: 12px; }
.dialog .row { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 8px; }
.dialog hr { width: 100%; margin: 4px 0; border: 0; border-top: 1px solid var(--border); }
.form-error { margin: 0; color: var(--err); font-size: 13px; }
button.danger { color: var(--err); border-color: var(--err); }

/* ---- narrow screens (phones) ---- */

@media (max-width: 760px) {
  .toolbar { padding: 8px; gap: 6px; }
  .brand span { display: none; }
  .status { width: 100%; margin-left: 0; order: 10; }
  .field span { display: none; }
  .field select { max-width: 150px; }
  .layout { flex-direction: column; }
  .side { flex-direction: row; border-left: 0; border-top: 1px solid var(--border); overflow-x: auto; padding: 6px; }
  .side hr { display: none; }
  .side button { width: 54px; height: 48px; flex: none; }
  .typebar { padding: 6px 8px; }
  #sendEnter, #sendDel { padding: 0 8px; }
}