/* ===== USER SEARCH PANEL STYLES ===== */

/* Main Panel Container */
.user-search-panel {
    background: var(--glass-bg, rgba(255, 255, 255, 0.8));
    border: 1px solid var(--border, #e4e6ea);
    border-radius: 12px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

/* Panel Header */
.user-search-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border, #e4e6ea);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.user-search-header:hover {
    background: rgba(0, 0, 0, 0.02);
}

.user-search-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #1c1e21);
}

.user-search-title i {
    color: var(--primary-color, #4cb15c);
    font-size: 18px;
}

/* Expand/Collapse Button */
.expand-collapse-btn {
    background: none;
    border: none;
    color: var(--text-muted, #65676b);
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.expand-collapse-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary, #1c1e21);
}

.expand-collapse-btn.collapsed i {
    transform: rotate(-90deg);
}

/* Panel Content */
.user-search-content {
    padding: 20px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.user-search-content.collapsed {
    max-height: 0;
    padding: 0 20px;
    opacity: 0;
}

/* Search Input Container */
.user-search-input-container {
    position: relative;
    margin-bottom: 16px;
}

.user-search-input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border: 2px solid var(--border, #e4e6ea);
    border-radius: 8px;
    font-size: 14px;
    background: var(--surface, #ffffff);
    color: var(--text-primary, #1c1e21);
    transition: all 0.2s ease;
    outline: none;
}

.user-search-input:focus {
    border-color: var(--primary-color, #4cb15c);
    box-shadow: 0 0 0 3px rgba(76, 177, 92, 0.1);
}

.user-search-input::placeholder {
    color: var(--text-muted, #65676b);
}

/* Search Icon */
.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted, #65676b);
    font-size: 16px;
    pointer-events: none;
}

/* Loading Indicator */
.search-loading {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color, #4cb15c);
    font-size: 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: translateY(-50%) rotate(0deg); }
    to { transform: translateY(-50%) rotate(360deg); }
}

/* Search Dropdown */
.user-search-dropdown {
    position: relative;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface, #ffffff);
    border: 1px solid var(--border, #e4e6ea);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    max-height: 300px;
    overflow: visible;
    display: none;
    margin-top: 4px;
}

.user-search-dropdown.show {
    display: block;
}

/* Search Result Item */
.user-search-result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 3px 0 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    border-bottom: 1px solid var(--border-light, #f0f2f5);
    position: relative;
}

.user-search-result:last-child {
    border-bottom: none;
}

.user-search-result:hover {
    background: var(--hover-bg, #f0f2f5);
}

/* User Avatar in Results */
.user-search-result .user-avatar {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border, #e4e6ea);
}

/* User Info in Results */
.user-search-result .user-info {
    flex: 1;
    min-width: 0;
}

.user-search-result .user-name {
    font-weight: 400;
    color: var(--text-primary, #1c1e21);
    font-size: 12px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-search-result .user-username {
    color: var(--text-muted, #65676b);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Online Indicator */
.online-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success-color, #42b883);
    border: 2px solid var(--surface, #ffffff);
    flex-shrink: 0;
}

.online-indicator.offline {
    background: var(--text-muted, #65676b);
}

/* Menu Button */
.user-result-menu-btn {
    background: none;
    border: none;
    color: var(--text-muted, #65676b);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-result-menu-btn:hover {
    background: var(--hover-bg, #f0f2f5);
    color: var(--text-primary, #1c1e21);
}

/* Empty State */
.user-search-empty {
    padding: 20px;
    text-align: center;
    color: var(--text-muted, #65676b);
    font-size: 14px;
}

.user-search-empty i {
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
}

/* Selected Users List */
.selected-users-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
    min-height: 32px;
}

.selected-users-list:empty {
    display: none;
}

/* Selected User Tag */
.selected-user-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-color, #4cb15c);
    color: white;
    padding: 6px 10px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    max-width: 150px;
}

.selected-user-tag .user-avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.selected-user-tag .user-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.selected-user-tag .remove-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 2px;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: background-color 0.2s ease;
}

.selected-user-tag .remove-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Context Menu */
.user-context-menu {
    position: fixed;
    background: var(--surface, #ffffff);
    border: 1px solid var(--border, #e4e6ea);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1001;
    min-width: 180px;
    padding: 4px 0;
    display: none;
}

.user-context-menu.show {
    display: block;
}

.user-context-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 14px;
    color: var(--text-primary, #1c1e21);
}

.user-context-menu-item:hover {
    background: var(--hover-bg, #f0f2f5);
}

.user-context-menu-item i {
    color: var(--text-muted, #65676b);
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .user-search-panel {
        margin-bottom: 16px;
    }
    
    .user-search-header {
        padding: 12px 16px;
    }
    
    .user-search-content {
        padding: 16px;
    }
    
    .user-search-input {
        padding: 10px 14px 10px 36px;
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    .search-icon {
        left: 10px;
        font-size: 14px;
    }
    
    .selected-users-list {
        gap: 6px;
    }
    
    .selected-user-tag {
        font-size: 11px;
        padding: 4px 8px;
        max-width: 120px;
    }
    
    .selected-user-tag .user-avatar {
        width: 16px;
        height: 16px;
    }
}

/* Animation for smooth expand/collapse */
.user-search-content {
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
}

/* Focus states for accessibility */
.user-search-input:focus,
.expand-collapse-btn:focus,
.user-search-result:focus,
.selected-user-tag .remove-btn:focus {
    outline: 2px solid var(--primary-color, #4cb15c);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .user-search-panel {
        border-width: 2px;
    }
    
    .user-search-input {
        border-width: 2px;
    }
    
    .user-search-result:hover {
        background: var(--text-primary, #1c1e21);
        color: var(--surface, #ffffff);
    }
}