/* ==========================================================================
   QUIZZITCH — proctor.css
   Webcam verification, on-device AI Object Recognition, telemetry meters.
   Matching CelesteCon #26 official design architecture (celestecon.aeross.org).
   ========================================================================== */

/* --- 01 · WEBCAM PROCTOR VIEWPORT ----------------------------------------- */
.optic {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: var(--surface-input);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius-xs);
  overflow: hidden;
}
.optic--live {
  border-radius: 0;
  border-left: 0;
  border-right: 0;
  border-top: 0;
}

.optic video,
.optic img,
.optic canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.optic__placeholder {
  padding: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--ink-3);
  line-height: 1.6;
}
.optic__placeholder span {
  display: block;
  font-size: 10.5px;
  color: var(--ink-4);
  margin-top: 4px;
}
.optic--offline .optic__placeholder {
  color: var(--danger);
}

/* Guide brackets */
.optic__brackets {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.optic__brackets i {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--ink);
  opacity: .4;
}
.optic__brackets i:nth-child(1) { top: 8px;    left: 8px;  border-right: 0; border-bottom: 0; }
.optic__brackets i:nth-child(2) { top: 8px;    right: 8px; border-left: 0;  border-bottom: 0; }
.optic__brackets i:nth-child(3) { bottom: 8px; left: 8px;  border-right: 0; border-top: 0; }
.optic__brackets i:nth-child(4) { bottom: 8px; right: 8px; border-left: 0;  border-top: 0; }

/* AI Object Recognition live overlay box */
.optic__obj-box {
  position: absolute;
  border: 1.5px solid var(--crimson);
  background: rgba(194, 58, 30, .08);
  border-radius: 2px;
  pointer-events: none;
  z-index: 8;
  transition: all var(--t-fast);
}
.optic__obj-box.is-prohibited {
  border-color: var(--crimson);
  background: rgba(194, 58, 30, .2);
  border-width: 2px;
}
.optic__obj-box b {
  position: absolute;
  top: -18px;
  left: 0;
  padding: 1px 6px;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
  color: #fff;
  border-radius: 2px;
}
.optic__obj-box.is-prohibited b {
  background: var(--crimson);
}

/* Recording Pill */
.optic__rec {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: rgba(22, 19, 16, .85);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  text-transform: uppercase;
  color: #fff;
  pointer-events: none;
  z-index: 10;
}

/* --- 02 · BASELINE SNAPSHOT ---------------------------------------------- */
.snapshot {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: var(--surface-input);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius-xs);
  overflow: hidden;
}
.snapshot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.snapshot__empty {
  padding: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}

/* --- 03 · STATUS STRIP ---------------------------------------------------- */
.statusstrip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 14px;
  background: var(--surface-3);
  border-top: 1px solid var(--border-sub);
}

/* --- 04 · TELEMETRY METERS ------------------------------------------------ */
.meters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-sub);
}
.meters--compact {
  border: 1px solid var(--border-sub);
  border-radius: var(--radius-xs);
  overflow: hidden;
  margin-top: 12px;
}

.meter-cell {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  background: var(--surface-input);
}
.meter-cell__k {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.meter-cell__v {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}
.meter-cell__v--sm {
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-3);
}
.meter-cell__v.is-ok   { color: var(--success); }
.meter-cell__v.is-warn { color: var(--warning); }
.meter-cell__v.is-bad  { color: var(--danger); }

.meter {
  display: block;
  height: 4px;
  margin-top: 3px;
  background: var(--surface-3);
  border-radius: 2px;
  overflow: hidden;
}
.meter i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--crimson);
  border-radius: 2px;
  transition: width var(--t-base);
}
.meter i.is-ok   { background: var(--success); }
.meter i.is-warn { background: var(--warning); }
.meter i.is-bad  { background: var(--danger); }

.note {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-3);
}