/* ── QKD Video Chat — System 6 Aesthetic ────────────────────────────────── */

/* ── Reset ──────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

/* ── Layout shell ───────────────────────────────────────────────────────── */
.main-screen {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 40px);
  width: 100%;
  overflow: hidden;
  font-family: system-ui, sans-serif;
  background: #fff;
  color: #000;
}

.main-screen button,
.main-screen select,
.main-screen input {
  font-family: system-ui, sans-serif;
}

.main-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.hidden { display: none !important; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.header, .header * { cursor: default; }

.header {
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
  color: #000;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  flex-shrink: 0;
  border-bottom: 2px solid #000;
  background: #fff;
}

.header-left { display: flex; align-items: center; }
.header img#logo { display: none; }
.header-right { display: flex; align-items: center; gap: 10px; }

.header-theme-btn {
  display: none;
}

.conn-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: #000;
}

.conn-dot {
  width: 7px; height: 7px;
  display: inline-block;
  flex-shrink: 0;
}
.conn-dot--ok   { background: #060; }
.conn-dot--idle { background: #960; }
.conn-dot--off  { background: #c00; }

.conn-label {
  text-transform: uppercase;
  font-size: 10px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.conn-sep { opacity: 0.4; margin: 0 2px; }

.conn-state {
  text-transform: uppercase;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 1px 6px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.conn-state--idle       { color: #666; }
.conn-state--ready      { color: #060; }
.conn-state--waiting    { color: #960; }
.conn-state--in-session { color: #060; background: #e8f5e9; border: 1px solid #060; }

/* ── Toast ──────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: #fff;
  border: 2px solid #c00;
  color: #000;
  font-size: 13px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
  opacity: 0;
  pointer-events: none;
}
.toast--visible { transform: translateX(-50%) translateY(0); opacity: 1; pointer-events: auto; }
.toast--hidden  { transform: translateX(-50%) translateY(-100px); opacity: 0; pointer-events: none; }
.toast-message { flex: 1; }
.toast-dismiss { font-size: 1.2rem; opacity: 0.7; }
.toast-dismiss:hover { opacity: 1; }

/* ── Lobby ──────────────────────────────────────────────────────────────── */
.lobby {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  height: 100%;
  width: 100%;
  padding: 24px;
  max-width: 480px;
  margin: 0 auto;
}

.lobby-preview {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #fff;
  border: 2px solid #000;
}
.lobby-preview-canvas,
.lobby-preview-video {
  width: 100%; height: 100%;
  display: block;
  background: #ddd;
  object-fit: cover;
}
.lobby-preview-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
}
.lobby-preview .noise-canvas-wrapper { position: absolute; inset: 0; }

.lobby-title {
  font-size: 18px;
  font-weight: 400;
  color: #000;
  margin: 0;
  letter-spacing: 0.04em;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.lobby-form { display: flex; align-items: center; gap: 8px; width: 100%; }

.lobby-label {
  font-size: 12px;
  color: #000;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-width: 50px;
  flex-shrink: 0;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.lobby-server-inputs { display: flex; align-items: center; gap: 4px; flex: 1; }

.lobby-input {
  height: 32px;
  background: #fff;
  border: 2px solid #000;
  color: #000;
  font-size: 13px;
  padding: 0 8px;
  outline: none;
  font-family: system-ui, sans-serif;
}
.lobby-input:focus    { border-color: #000; outline: 1px solid #000; outline-offset: -1px; }
.lobby-input:disabled { opacity: 0.4; }
.lobby-input--host { flex: 1; }
.lobby-input--port { width: 72px; }
.lobby-input--room { flex: 1; text-transform: uppercase; }

.lobby-colon { color: #000; font-size: 1rem; }
.lobby-divider { width: 60%; height: 1px; background: #000; }

.lobby-btn {
  height: 32px;
  padding: 0 14px;
  font-size: 13px;
  border: 2px solid #000;
  cursor: pointer;
  background: #fff;
  color: #000;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.lobby-btn:hover:not(:disabled) { background: #000; color: #fff; }
.lobby-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.lobby-connect-btn--connecting { opacity: 0.5; cursor: default; }
.lobby-connect-btn--connected {
  background: #e8f5e9;
  color: #060;
  border-color: #060;
  cursor: default;
}

.lobby-start-btn {
  width: 100%;
  height: 36px;
  font-size: 14px;
  justify-content: center;
  background: #000;
  border-color: #000;
  color: #fff;
}
.lobby-start-btn:hover:not(:disabled) { background: #333; color: #fff; }

.lobby-error { color: #c00; font-size: 12px; text-align: center; }

.lobby-waiting {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #000;
}

.lobby-waiting-spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid #ccc;
  border-top-color: #000;
  animation: spin 0.8s linear infinite;
}

.lobby-user-id { opacity: 0.6; font-size: 12px; color: #000; }

.lobby-media { display: flex; gap: 10px; margin-top: 4px; }

.lobby-media-btn {
  width: 40px; height: 40px;
  border: 2px solid #000;
  background: #fff;
  color: #000;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lobby-media-btn:hover { background: #000; color: #fff; }
.lobby-media-btn--off {
  background: #fff;
  border-color: #c00;
  color: #c00;
}
.lobby-media-btn--off:hover { background: #c00; color: #fff; }

.lobby-device-row { display: flex; align-items: center; gap: 8px; width: 100%; }

.lobby-select {
  flex: 1;
  height: 32px;
  background: #fff;
  border: 2px solid #000;
  color: #000;
  font-size: 13px;
  padding: 0 28px 0 8px;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  font-family: system-ui, sans-serif;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23000' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}
.lobby-select:focus  { outline: 1px solid #000; outline-offset: -1px; }
.lobby-select option { background: #fff; color: #000; }

/* ── InCall ─────────────────────────────────────────────────────────────── */
.incall {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  background: #fff;
}

.incall-video-area {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: #ddd;
  border-bottom: 2px solid #000;
}

.incall-peer-canvas,
.incall-peer-video {
  width: 100%; height: 100%;
  display: block;
  object-fit: cover;
  position: relative;
  z-index: 2;
}
.incall-peer-noise { position: absolute; inset: 0; z-index: 1; }

.incall-pip {
  position: absolute;
  bottom: 12px; right: 12px;
  width: 180px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 2px solid #000;
  background: #ddd;
  z-index: 10;
}
.incall-pip-canvas,
.incall-pip-video { width: 100%; height: 100%; display: block; object-fit: cover; }
.incall-pip-off {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eee;
  color: #666;
}

.incall-info {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  padding: 6px 16px;
  background: #fff;
  border-bottom: 2px solid #000;
  flex-shrink: 0;
}
.incall-output-select {
  height: 26px;
  font-size: 11px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
  max-width: 180px;
  border: 1px solid #ccc;
  border-radius: 0;
  background: #fff;
  color: #000;
  padding: 0 6px;
  cursor: pointer;
}
.incall-output-select:focus { outline: 1px solid #000; outline-offset: -1px; }

.incall-room {
  font-size: 12px;
  color: #666;
  letter-spacing: 0.05em;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.incall-room strong { color: #000; letter-spacing: 0.08em; }
.incall-timer {
  font-size: 12px;
  color: #000;
  font-variant-numeric: tabular-nums;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.incall-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: #fff;
  border-top: 2px solid #000;
  flex-shrink: 0;
  position: relative;
}
.incall-toolbar-center { display: flex; align-items: center; gap: 8px; }

.incall-tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 16px;
  background: #fff;
  border: 2px solid #000;
  color: #000;
  cursor: pointer;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.incall-tool-btn:hover { background: #000; color: #fff; }
.incall-tool-btn--off {
  background: #fff;
  color: #c00;
  border-color: #c00;
}
.incall-tool-btn--off:hover { background: #c00; color: #fff; }

.incall-tool-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.incall-leave-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 20px;
  background: #000;
  border: 2px solid #000;
  color: #fff;
  cursor: pointer;
  position: absolute;
  right: 24px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.incall-leave-btn:hover { background: #c00; border-color: #c00; }

/* ── Noise canvas ───────────────────────────────────────────────────────── */
.noise-canvas-wrapper {
  position: relative;
  width: 100%; height: 100%;
  background-color: #ddd;
  display: flex;
  align-items: center;
  justify-content: center;
}
.noise-canvas {
  width: 100%; height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
  opacity: 0.6;
}
.noise-label {
  position: absolute;
  color: #000;
  font-size: clamp(10px, 2vw, 16px);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
  background: rgba(255,255,255,0.7);
  padding: 4px 10px;
  border: 1px solid #000;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

/* ── Status popup ───────────────────────────────────────────────────────── */
.status-popup {
  position: fixed;
  z-index: 1000;
  transform: translate(-50%,-50%);
  top: 50%; left: 50%;
  padding: 8px 16px;
  background-color: #fff;
  border: 2px solid #c00;
  font-size: min(7vh,4vw);
  color: #c00;
  text-align: center;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

/* ── Quantum Dashboard Panel ────────────────────────────────────────────── */
.quantum-panel {
  background: #fff;
  border-top: 2px solid #000;
  padding: 8px 16px;
  flex-shrink: 0;
}

.qd-inactive {
  font-size: 12px;
  color: #666;
  text-align: center;
  padding: 4px 0;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.qd-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.qd-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #000;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.qd-badge {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  font-weight: 600;
  border: 1px solid;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.qd-status--normal  { color: #060; background: #e8f5e9; border-color: #060; }
.qd-status--warning { color: #960; background: #fff8e1; border-color: #960; }
.qd-status--danger  { color: #c00; background: #fdedef; border-color: #c00; }

.qd-metrics {
  display: flex;
  gap: 16px;
  margin-bottom: 6px;
}

.qd-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.qd-metric-value {
  font-size: 18px;
  font-weight: 600;
  color: #000;
  font-variant-numeric: tabular-nums;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.qd-metric--warning { color: #960; }
.qd-metric--danger  { color: #c00; }

.qd-metric-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #666;
  margin-top: 2px;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}

.qd-chart {
  width: 100%;
  height: 60px;
  display: block;
  margin-bottom: 6px;
  border: 1px solid #000;
  background: #fff;
}

.qd-eve-btn {
  width: 100%;
  height: 28px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: #fff;
  border: 2px solid #000;
  color: #000;
  cursor: pointer;
  font-family: 'Chicago', 'ChicagoFLF', sans-serif;
}
.qd-eve-btn:hover { background: #000; color: #fff; }
.qd-eve-btn--active {
  background: #fff;
  border-color: #c00;
  color: #c00;
}
.qd-eve-btn--active:hover { background: #c00; color: #fff; }

/* ── Shared keyframes ───────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }