/* Gmail-like layout */
.ww-gmail-layout {
    display: flex;
    gap: 0;
    height: calc(100vh - 250px);
    min-height: 500px;
    border: 1px solid var(--ww-border-subtle);
    border-radius: var(--ww-radius-lg);
    overflow: hidden;
    background: var(--ww-surface);
}

.ww-gmail-list {
    width: 350px;
    flex-shrink: 0;
    border-right: 1px solid var(--ww-border-subtle);
    overflow-y: auto;
    background: #f9fafb;
}

.ww-gmail-detail {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.ww-gmail-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--ww-spacing-xl);
    text-align: center;
}

.ww-gmail-header {
    padding: var(--ww-spacing-lg);
    border-bottom: 1px solid var(--ww-border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ww-spacing-md);
    background: var(--ww-surface);
}

.ww-gmail-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    flex: 1;
}

.ww-gmail-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--ww-spacing-lg);
}

.ww-thread-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--ww-border-subtle);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.ww-thread-item:hover {
    background-color: #f0f4f8;
}

.ww-thread-item.active {
    background-color: #e0ecff;
    border-left: 3px solid var(--ww-primary);
}

.ww-thread-item-subject {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--ww-text);
}

.ww-thread-item-snippet {
    font-size: 13px;
    color: var(--ww-text-muted);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ww-thread-item-meta {
    font-size: 11px;
    color: var(--ww-text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ww-message-card {
    background: var(--ww-surface);
    border: 1px solid var(--ww-border-subtle);
    border-radius: var(--ww-radius-md);
    padding: var(--ww-spacing-lg);
    margin-bottom: var(--ww-spacing-md);
}

.ww-message-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--ww-spacing-md);
    padding-bottom: var(--ww-spacing-sm);
    border-bottom: 1px solid var(--ww-border-subtle);
}

.ww-message-from {
    font-weight: 600;
    font-size: 14px;
    color: var(--ww-text);
    margin-bottom: 2px;
}

.ww-message-to {
    font-size: 12px;
    color: var(--ww-text-muted);
}

.ww-message-date {
    font-size: 12px;
    color: var(--ww-text-muted);
    white-space: nowrap;
}

.ww-message-body {
    font-size: 14px;
    line-height: 1.6;
    color: var(--ww-text);
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Client Accordion */
.ww-client-group {
    border-bottom: 1px solid var(--ww-border-subtle);
}

.ww-client-header {
    padding: 14px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
    user-select: none;
}

.ww-client-header:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a4190 100%);
}

.ww-client-header.collapsed {
    background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
    color: var(--ww-text);
}

.ww-client-badge {
    background: rgba(255, 255, 255, 0.3);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.ww-client-header.collapsed .ww-client-badge {
    background: rgba(0, 0, 0, 0.1);
}

.ww-client-threads {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.ww-client-threads.expanded {
    max-height: 2000px;
}

.ww-client-group .ww-thread-item {
    padding-left: 24px;
    border-left: 3px solid transparent;
}

.ww-client-group .ww-thread-item:hover {
    border-left-color: #667eea;
}

.ww-client-group .ww-thread-item.active {
    border-left-color: #667eea;
    background-color: #f0f4ff;
}

@media (max-width: 900px) {
    .ww-gmail-layout {
        flex-direction: column;
        height: auto;
    }

    .ww-gmail-list {
        width: 100%;
        max-height: 300px;
        border-right: none;
        border-bottom: 1px solid var(--ww-border-subtle);
    }
}