/**
 * Online Users Component Styles
 *
 * Displays online users with avatars, status indicators, and tooltips.
 * Supports both desktop sidebar and mobile drawer layouts.
 */

/* ================================================
   ONLINE USERS CONTAINER
   ================================================ */

.online-users-container {
    background: var(--card-background, #ffffff);
    border-radius: var(--border-radius, 12px);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
    overflow: visible;
}

.online-users-container:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .online-users-container {
        background: var(--card-background-dark, #1e1e1e);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .online-users-container:hover {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }
}

/* ================================================
   HEADER SECTION
   ================================================ */

.online-users-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color, #e0e0e0);
}

.online-users-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary, #333);
}

.online-users-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--success-light, #e8f5e9);
    color: var(--success, #4caf50);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.online-users-count .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success, #4caf50);
    animation: pulse-online 2s infinite;
}

@keyframes pulse-online {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.95);
    }
}

/* ================================================
   USER AVATARS GRID
   ================================================ */

.online-users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
    gap: 12px;
    max-height: 300px;
    overflow-y: auto;
    overflow-x: visible;
    padding: 8px 4px;
}

/* Custom scrollbar */
.online-users-grid::-webkit-scrollbar {
    width: 6px;
}

.online-users-grid::-webkit-scrollbar-track {
    background: var(--scrollbar-track, #f1f1f1);
    border-radius: 3px;
}

.online-users-grid::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb, #888);
    border-radius: 3px;
}

.online-users-grid::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover, #555);
}

/* ================================================
   USER AVATAR ITEM
   ================================================ */

.online-user-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: transform 0.2s ease;
    z-index: 1;
    /* Disable default mobile tap highlight */
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

.online-user-item:hover {
    transform: translateY(-4px);
    z-index: 100; /* Bring to front on hover */
}

.online-user-item:active .online-user-avatar-wrapper {
    transform: scale(0.95);
}

.online-user-avatar-wrapper {
    position: relative;
    width: 48px;
    height: 48px;
    border-radius: 50% !important;
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    /* Ensure no default tap highlights */
    -webkit-tap-highlight-color: transparent;
}

.online-user-item:active .online-user-avatar-wrapper,
.online-user-avatar-wrapper:active {
    transform: scale(0.95);
    box-shadow: 0 0 0 6px rgba(33, 150, 243, 0.5) !important;
    border-radius: 50% !important;
}

.online-user-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
    object-fit: cover;
}

/* Status-based borders */
.online-user-item[data-status="online"] .online-user-avatar {
    border-color: var(--status-online, #4caf50);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

.online-user-item[data-status="idle"] .online-user-avatar {
    border-color: var(--status-idle, #ff9800);
    box-shadow: 0 0 0 2px rgba(255, 152, 0, 0.2);
}

.online-user-item[data-status="offline"] .online-user-avatar {
    border-color: var(--status-offline, #9e9e9e);
    opacity: 0.6;
}

/* Status indicator dot */
.online-user-status-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--card-background, #ffffff);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.online-user-status-dot[data-status="online"] {
    background: var(--status-online, #4caf50);
}

.online-user-status-dot[data-status="idle"] {
    background: var(--status-idle, #ff9800);
}

.online-user-status-dot[data-status="offline"] {
    background: var(--status-offline, #9e9e9e);
}

/* ================================================
   TOOLTIP
   ================================================ */

.online-user-tooltip {
    position: fixed !important;
    pointer-events: none !important;
    background: rgba(33, 33, 33, 0.98) !important;
    color: #ffffff !important;
    padding: 12px 16px !important;
    border-radius: 8px !important;
    font-size: 12px !important;
    white-space: nowrap !important;
    transition: opacity 0.2s ease, visibility 0.2s ease !important;
    z-index: 10000 !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4) !important;
    min-width: 150px !important;
    display: block !important;
}

/* Tooltip arrow */
.online-user-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(33, 33, 33, 0.98);
}

/* Tooltip content */
.tooltip-username {
    display: block;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 4px;
}

.tooltip-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 11px;
    opacity: 0.9;
}

.tooltip-info-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tooltip-info-label {
    color: var(--tooltip-label, #aaa);
}

.tooltip-info-value {
    font-weight: 500;
    color: var(--tooltip-value, #fff);
}

/* Status badge in tooltip */
.tooltip-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.tooltip-status[data-status="online"] {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
}

.tooltip-status[data-status="idle"] {
    background: rgba(255, 152, 0, 0.2);
    color: #ff9800;
}

.tooltip-status[data-status="offline"] {
    background: rgba(158, 158, 158, 0.2);
    color: #9e9e9e;
}

/* ================================================
   EMPTY STATE
   ================================================ */

.online-users-empty {
    text-align: center;
    padding: 24px 16px;
    color: var(--text-secondary, #666);
    font-size: 13px;
}

.online-users-empty-icon {
    font-size: 32px;
    margin-bottom: 8px;
    opacity: 0.5;
}

/* ================================================
   MOBILE DRAWER SPECIFIC STYLES
   ================================================ */

@media (max-width: 768px) {
    .online-users-container {
        margin: 0;
        border-radius: 0;
        height: 100%;
    }

    .online-users-grid {
        max-height: none;
        grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
        gap: 16px;
        padding: 16px 8px;
    }

    .online-user-avatar-wrapper {
        width: 64px;
        height: 64px;
        border-radius: 50% !important;
        -webkit-tap-highlight-color: transparent !important;
    }

    /* Enhanced touch feedback on mobile */
    .online-user-item:active .online-user-avatar-wrapper,
    .online-user-avatar-wrapper:active {
        transform: scale(0.92);
        box-shadow: 0 0 0 8px rgba(33, 150, 243, 0.6) !important;
        border-radius: 50% !important;
    }

    .online-user-status-dot {
        width: 14px;
        height: 14px;
        bottom: 4px;
        right: 4px;
    }

    /* Mobile: Show username below avatar */
    .online-user-item::after {
        content: attr(data-username);
        display: block;
        margin-top: 4px;
        font-size: 10px;
        text-align: center;
        max-width: 64px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        color: var(--text-secondary, #666);
    }

    /* Enable tap-to-show tooltips on mobile */
    .online-user-tooltip {
        /* Show tooltip only when it has the active class */
        display: none;
    }

    .online-user-tooltip.online-user-tooltip--active {
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
}

/* ================================================
   DESKTOP SIDEBAR SPECIFIC STYLES
   ================================================ */

@media (min-width: 769px) {
    .online-users-container {
        max-width: 100%;
    }

    .online-users-grid {
        grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
    }
}

/* ================================================
   LOADING STATE
   ================================================ */

.online-users-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    color: var(--text-secondary, #666);
    font-size: 13px;
}

.online-users-loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color, #e0e0e0);
    border-top-color: var(--primary, #2196f3);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================================
   ANIMATIONS
   ================================================ */

/* Fade in animation for new users */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.online-user-item.just-joined {
    animation: fadeIn 0.3s ease;
}

/* Fade out animation for leaving users */
@keyframes fadeOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

.online-user-item.just-left {
    animation: fadeOut 0.3s ease;
}

/* ================================================
   ACCESSIBILITY
   ================================================ */

.online-user-item:focus {
    outline: none;
}

.online-user-item:focus .online-user-avatar-wrapper {
    box-shadow: 0 0 0 6px var(--primary, #2196f3);
}

.online-user-item:focus:not(:focus-visible) .online-user-avatar-wrapper {
    box-shadow: none;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}