/* ============================================
   VAULT PAGE — WEBCAM FILTER EXPERIENCE
   ============================================ */

.vault {
  min-height: 100vh;
  padding-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-deep-black);
}

/* ---- PERMISSION PROMPT ---- */
.vault__prompt {
  text-align: center;
  padding: var(--spacing-md);
  max-width: 500px;
}

.vault__prompt-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  border: 2px solid var(--color-steel-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vault__prompt-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--color-bright-blue);
  stroke-width: 1.5;
}

.vault__prompt-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-xs);
}

.vault__prompt-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-steel-blue);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

/* ---- LOADING STATE ---- */
.vault__loading {
  text-align: center;
  padding: var(--spacing-md);
  display: none;
}

.vault__loading.active {
  display: block;
}

.vault__loading-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-bright-blue);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: loadingPulse 1.5s ease-in-out infinite;
}

@keyframes loadingPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.vault__loading-bar {
  width: 200px;
  height: 2px;
  background: rgba(42, 71, 94, 0.3);
  margin: var(--spacing-sm) auto 0;
  overflow: hidden;
  border-radius: 1px;
}

.vault__loading-bar-fill {
  width: 0%;
  height: 100%;
  background: var(--color-bright-blue);
  transition: width 0.3s ease;
}

/* ---- MAIN EXPERIENCE ---- */
.vault__experience {
  display: none;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 720px;
  padding: var(--spacing-sm);
}

.vault__experience.active {
  display: flex;
}

/* Canvas container */
.vault__canvas-wrapper {
  position: relative;
  width: 100%;
  background: #000;
  border: var(--border-industrial);
  overflow: hidden;
}

.vault__canvas-wrapper::before {
  content: 'REC';
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-red-accent);
  letter-spacing: 0.15em;
  z-index: 5;
  animation: recBlink 1s step-end infinite;
}

@keyframes recBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.vault__video {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.vault__canvas {
  display: block;
  width: 100%;
  height: auto;
}

/* Unit placard */
.vault__placard {
  width: 100%;
  padding: 14px 20px;
  background: rgba(27, 40, 56, 0.8);
  border: var(--border-industrial);
  border-top: none;
  text-align: center;
}

.vault__placard-text {
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 2vw, 1rem);
  color: var(--color-bright-blue);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.vault__placard-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-steel-blue);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* Controls */
.vault__controls {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.vault__controls .btn {
  font-size: 0.7rem;
  padding: 10px 20px;
}

/* ---- ERROR STATE ---- */
.vault__error {
  text-align: center;
  padding: var(--spacing-md);
  display: none;
}

.vault__error.active {
  display: block;
}

.vault__error-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-red-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
}

.vault__error-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-steel-blue);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  line-height: 1.8;
}

.vault__error-retry {
  margin-top: var(--spacing-md);
}

/* ---- TOAST NOTIFICATION ---- */
.vault__toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-steel-blue);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 12px 24px;
  border-radius: 2px;
  z-index: var(--z-modal);
  transition: transform var(--transition-default);
  white-space: nowrap;
}

.vault__toast.visible {
  transform: translateX(-50%) translateY(0);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .vault {
    padding-top: 60px;
    justify-content: flex-start;
    padding-bottom: var(--spacing-md);
  }

  .vault__experience {
    padding: var(--spacing-xs);
  }

  .vault__controls {
    gap: var(--spacing-xs);
  }

  .vault__controls .btn {
    font-size: 0.65rem;
    padding: 8px 14px;
  }
}

@media (max-width: 480px) {
  .vault__placard-text {
    letter-spacing: 0.15em;
  }
}