/* Avatar Component */
/* BEM: .c-avatar */

.c-avatar {
  /* Base avatar styles */
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: var(--c-avatar-border-radius, var(--ds-radius-circle));
  background-color: var(--c-avatar-background-color, var(--ds-color-status-highlight));
  color: var(--c-avatar-text-color, var(--ds-color-text-on-accent));
  font-weight: var(--ds-font-weight-medium);
  user-select: none;
  box-shadow: var(--c-avatar-box-shadow, none);
  
  /* Default size */
  width: var(--c-avatar-size, var(--ds-space-xl));
  height: var(--c-avatar-size, var(--ds-space-xl));
  font-size: calc(var(--c-avatar-size, var(--ds-space-xl)) * 0.4);
}

/* Avatar image */
.c-avatar__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

/* Avatar fallback container */
.c-avatar__fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: inherit;
  color: inherit;
  border-radius: inherit;
}

/* Avatar initials */
.c-avatar__initials {
  font-size: inherit;
  font-weight: inherit;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

/* Avatar icon */
.c-avatar__icon {
  width: 60%;
  height: 60%;
  fill: currentColor;
}

/* Avatar placeholder icon */
.c-avatar__placeholder {
  width: 60%;
  height: 60%;
  fill: currentColor;
  opacity: 0.7;
}

/* Size variants */
.c-avatar--size-s {
  --c-avatar-size: var(--ds-space-l);
}

.c-avatar--size-m {
  --c-avatar-size: var(--ds-space-xl);
}

.c-avatar--size-l {
  --c-avatar-size: var(--ds-space-xxl);
}

.c-avatar--size-xl {
  --c-avatar-size: 4rem;
}

.c-avatar--size-xxl {
  --c-avatar-size: 5rem;
}

.c-avatar--size-xxxl {
  --c-avatar-size: 6rem;
}

/* Square variant */
.c-avatar--square {
  --c-avatar-border-radius: var(--ds-radius-s);
}

/* Interactive states */
.c-avatar--interactive {
  cursor: pointer;
  transition: transform var(--ds-duration-fast) var(--ds-ease-out),
              box-shadow var(--ds-duration-fast) var(--ds-ease-out);
}

.c-avatar--interactive:hover {
  transform: scale(1.05);
  box-shadow: var(--ds-shadow-m);
}

.c-avatar--interactive:active {
  transform: scale(0.98);
}

.c-avatar--interactive:focus-visible {
  outline: var(--ds-focus-ring-width) solid var(--ds-focus-ring-color);
  outline-offset: var(--ds-focus-ring-offset);
}

/* Status indicators */
.c-avatar--status {
  position: relative;
}

.c-avatar--status::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 25%;
  height: 25%;
  border-radius: var(--ds-radius-circle);
  border: 2px solid var(--ds-color-surface);
  background-color: var(--c-avatar-status-color, var(--ds-color-status-success));
}

.c-avatar--status-online::after {
  --c-avatar-status-color: var(--ds-color-status-success);
}

.c-avatar--status-offline::after {
  --c-avatar-status-color: var(--ds-color-text-weaker);
}

.c-avatar--status-busy::after {
  --c-avatar-status-color: var(--ds-color-status-danger);
}

.c-avatar--status-away::after {
  --c-avatar-status-color: var(--ds-color-status-warning);
}

/* Loading state */
.c-avatar--loading {
  position: relative;
  overflow: hidden;
}

.c-avatar--loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: c-avatar-shimmer 1.5s infinite;
}

@keyframes c-avatar-shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* Error state */
.c-avatar--error {
  background-color: var(--ds-color-status-danger-weak);
  color: var(--ds-color-text-danger);
}

/* Group avatars */
.c-avatar-group {
  display: flex;
  align-items: center;
}

.c-avatar-group .c-avatar {
  border: 2px solid var(--ds-color-surface);
  margin-left: calc(var(--c-avatar-size, var(--ds-space-xl)) * -0.25);
}

.c-avatar-group .c-avatar:first-child {
  margin-left: 0;
}

.c-avatar-group .c-avatar:hover {
  z-index: 1;
}

/* Avatar with tooltip */
.c-avatar[aria-describedby] {
  cursor: help;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .c-avatar {
    border: 2px solid;
  }
  
  .c-avatar--status::after {
    border-width: 3px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .c-avatar--interactive {
    transition: none;
  }
  
  .c-avatar--interactive:hover {
    transform: none;
  }
  
  .c-avatar--loading::before {
    animation: none;
  }
}

/* Print styles */
@media print {
  .c-avatar {
    background-color: transparent !important;
    color: black !important;
    border: 1px solid black;
  }
  
  .c-avatar--status::after {
    display: none;
  }
}