/* ── LAYOUT.CSS — Grid, panels, status bar ── */

#app-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  padding: 12px 16px 44px 16px; /* bottom padding for status bar */
  gap: 12px;
  position: relative;
}

/* ── HEADER ── */
#header {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
}

#logo-area {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#logo {
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 0.3em;
  text-shadow: var(--glow-green);
  line-height: 1;
}

#logo span {
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

#subtitle {
  font-size: 11px;
  color: var(--green-dim);
  letter-spacing: 0.08em;
  min-height: 16px;
}

#header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 4px;
}

/* ── MAIN PANEL ── */
#main-panel {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 12px;
  min-height: 0;
}

/* ── CAMERA PANEL ── */
#camera-panel {
  position: relative;
  border: 1px solid var(--border);
  background: #050505;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s;
}

#camera-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.5) 100%);
  pointer-events: none;
  z-index: 2;
}

#webcam-feed {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0; /* hidden — canvas shows the mirrored output */
}

#overlay-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

#camera-idle-msg {
  position: absolute;
  z-index: 3;
  text-align: center;
  color: var(--green);
  font-size: 12px;
  letter-spacing: 0.1em;
  pointer-events: none;
  text-shadow: var(--glow-green);
}
#camera-idle-msg .big {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
  opacity: 0.3;
}

/* ── CONTROLS PANEL ── */
#controls-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
  overflow-y: auto;
}

.panel-block {
  border: 1px solid var(--border);
  padding: 12px;
  background: var(--bg-panel);
  flex-shrink: 0;
}

.panel-block-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--green-dim);
  text-transform: uppercase;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

/* ── SONG SELECTOR ── */
#song-select {
  width: 100%;
  margin-bottom: 8px;
}

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

.upload-row span {
  font-size: 11px;
  color: var(--green-dim);
  flex-shrink: 0;
}

.file-input-wrapper {
  flex: 1;
}

.file-input-wrapper .file-input-btn {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 11px;
  padding: 5px 10px;
  border: 1px dashed var(--border);
  color: var(--green-dim);
  letter-spacing: 0.08em;
  transition: border-color 0.1s, color 0.1s;
}
.file-input-wrapper:hover .file-input-btn {
  border-color: var(--green);
  color: var(--green);
}

#uploaded-filename {
  font-size: 10px;
  color: var(--amber);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 14px;
}

/* ── SESSION CONTROLS ── */
.session-buttons {
  display: flex;
  gap: 8px;
}
.session-buttons button {
  flex: 1;
}

#start-btn {
  font-size: 13px;
  padding: 10px;
  letter-spacing: 0.15em;
}

#stop-btn {
  font-size: 13px;
  padding: 10px;
  letter-spacing: 0.15em;
  border-color: var(--amber);
  color: var(--amber);
  display: none;
}
#stop-btn:hover {
  background: var(--amber);
  color: #000;
  box-shadow: var(--glow-amber);
}

/* ── FX DISPLAY ── */
#fx-display {
  text-align: center;
  padding: 10px;
}
#fx-name {
  font-size: 20px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-shadow: var(--glow-amber);
  min-height: 28px;
  transition: all 0.15s;
}
#fx-desc {
  font-size: 10px;
  color: var(--green-dim);
  margin-top: 2px;
  min-height: 14px;
}

/* ── VOLUME DISPLAY ── */
#vol-display {
  display: flex;
  align-items: center;
  gap: 8px;
}
#vol-label {
  font-size: 11px;
  color: var(--green-dim);
  width: 28px;
  flex-shrink: 0;
}
#vol-bar-track {
  flex: 1;
  height: 6px;
  background: var(--green-dark);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
#vol-bar-fill {
  height: 100%;
  background: var(--green);
  box-shadow: var(--glow-sm);
  width: 0%;
  transition: width 0.08s linear;
}
#vol-pct {
  font-size: 11px;
  width: 34px;
  text-align: right;
  flex-shrink: 0;
}

/* ── BOOT LOG ── */
#boot-log {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  font-size: 11px;
  line-height: 1.8;
  color: var(--green-dim);
}
#boot-log .log-line {
  display: block;
}
#boot-log .log-line.ok::before {
  content: '> ';
  color: var(--green);
}
#boot-log .log-line.err {
  color: #ff4444;
}
#boot-log .log-line.warn {
  color: var(--amber);
}

/* ── STATUS BAR ── */
#status-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 32px;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 12px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  z-index: 100;
  font-size: 11px;
  letter-spacing: 0.06em;
}

.status-field {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  border-right: 1px solid var(--border);
  height: 100%;
  white-space: nowrap;
  overflow: hidden;
}
.status-field:first-child { padding-left: 0; }

.status-key {
  color: var(--green-dim);
  flex-shrink: 0;
}
.status-val {
  color: var(--green);
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}
.status-val.amber { color: var(--amber); }

#status-state {
  margin-left: auto;
  border-right: none;
  padding-right: 0;
}
#status-state .status-val {
  color: var(--green-dim);
}
#status-state .status-val.active-state {
  color: var(--green);
}

/* ── GESTURE HELP BUTTON (fixed) ── */
#gesture-help-btn {
  position: fixed;
  bottom: 44px;
  right: 16px;
  z-index: 200;
  font-size: 11px;
  padding: 5px 12px;
  border-color: var(--green-dim);
  color: var(--green-dim);
}
#gesture-help-btn:hover {
  border-color: var(--green);
  color: #000;
  background: var(--green);
  box-shadow: var(--glow-green);
}