/* ================================================
   Messenger Layout — 3-column chat interface
   ================================================ */
.messenger {
    display: grid;
    grid-template-columns: 320px 1fr 280px;
    height: calc(100vh - var(--header-height));
    margin: calc(var(--space-lg) * -1);
    background: var(--color-bg);
}

/* === Sidebar: Conversation List === */
.messenger__sidebar {
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messenger__sidebar-header {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.messenger__title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--space-sm);
}

.messenger__search {
    margin-bottom: var(--space-sm);
}

.messenger__filters {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.messenger__conv-list {
    flex: 1;
    overflow-y: auto;
}

.messenger__conv-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-fast);
    position: relative;
}

.messenger__conv-item:hover {
    background: var(--color-bg);
}

.messenger__conv-item--active {
    background: var(--color-primary-light) !important;
    border-left: 3px solid var(--color-primary);
}

.messenger__conv-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    flex-shrink: 0;
}

.messenger__conv-avatar--sm {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
}

.messenger__conv-info {
    flex: 1;
    min-width: 0;
}

.messenger__conv-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.messenger__conv-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.messenger__conv-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.messenger__conv-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2px;
}

.messenger__conv-preview {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.messenger__unread {
    background: var(--color-primary);
    color: #fff;
    font-size: 10px;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.messenger__conv-status {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.messenger__conv-status--active {
    background: var(--color-success);
}

.messenger__conv-status--waiting_human,
.messenger__conv-status--human {
    background: var(--color-warning);
}

.messenger__conv-status--closed {
    background: var(--color-text-muted);
}

/* === Chat Area === */
.messenger__chat {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    overflow: hidden;
}

.messenger__empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    gap: var(--space-md);
}

.messenger__empty-icon {
    opacity: 0.3;
}

.messenger__chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.messenger__chat-user {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.messenger__chat-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.messenger__chat-phone {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.messenger__chat-actions {
    display: flex;
    gap: var(--space-xs);
}

/* Messages container */
.messenger__messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

/* Message bubbles */
.messenger__bubble {
    max-width: 70%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    position: relative;
    word-wrap: break-word;
}

.messenger__bubble--incoming {
    align-self: flex-start;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-bottom-left-radius: var(--radius-sm);
}

.messenger__bubble--ai {
    align-self: flex-end;
    background: #e8f5e9;
    border: 1px solid #c8e6c9;
    border-bottom-right-radius: var(--radius-sm);
}

.messenger__bubble--admin {
    align-self: flex-end;
    background: var(--color-primary-light);
    border: 1px solid #bfdbfe;
    border-bottom-right-radius: var(--radius-sm);
}

.messenger__bubble-content {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--color-text);
}

.messenger__bubble-meta {
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
    margin-top: var(--space-xs);
}

.messenger__bubble-sender {
    font-size: 10px;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 2px;
}

.messenger__bubble-time {
    font-size: 10px;
    color: var(--color-text-muted);
}

/* Media in messages */
.messenger__media-img {
    max-width: 240px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xs);
    cursor: pointer;
}

.messenger__media-sticker {
    max-width: 160px;
}

.messenger__media-audio {
    width: 100%;
    max-width: 260px;
}

/* WhatsApp-style audio player */
.audio-player {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    min-width: 220px;
    max-width: 280px;
    border-radius: 8px;
    background: rgba(0,0,0,.04);
}

.audio-player__btn {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: var(--color-primary, #25D366);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: opacity .15s;
}
.audio-player__btn:hover { opacity: .85; }
.audio-player__btn svg { pointer-events: none; }

.audio-player__body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.audio-player__wave {
    display: flex;
    align-items: center;
    gap: 1.5px;
    height: 28px;
    cursor: pointer;
    position: relative;
}

.audio-player__bar {
    flex: 1;
    min-width: 2px;
    border-radius: 1px;
    background: rgba(0,0,0,.25);
    transition: background .1s;
}
.audio-player__bar--played {
    background: var(--color-primary, #25D366);
}

.audio-player__time {
    font-size: 11px;
    color: var(--color-text-muted, #667781);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.messenger__media-video {
    max-width: 280px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xs);
}

.messenger__media-doc {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
}

/* Input area */
.messenger__input-area {
    display: flex;
    align-items: flex-end;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.messenger__input {
    flex: 1;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    resize: none;
    min-height: 38px;
    max-height: 120px;
    line-height: 1.5;
}

.messenger__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.messenger__closed-bar {
    text-align: center;
    padding: var(--space-md);
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* === Contact Details Panel === */
.messenger__details {
    background: var(--color-surface);
    border-left: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--space-lg);
}

.messenger__detail-header {
    text-align: center;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-md);
}

.messenger__detail-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0 auto var(--space-sm);
}

.messenger__detail-name {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin: 0;
}

.messenger__detail-phone {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: var(--space-xs) 0 0;
}

.messenger__detail-section {
    margin-bottom: var(--space-md);
}

.messenger__detail-section h4 {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--space-sm);
}

.messenger__detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    font-size: var(--font-size-sm);
}

.messenger__detail-row > span:first-child {
    color: var(--color-text-secondary);
}

.messenger__loading {
    text-align: center;
    padding: var(--space-lg);
    color: var(--color-text-muted);
}

.messenger__empty-list {
    text-align: center;
    padding: var(--space-xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .messenger {
        grid-template-columns: 280px 1fr;
    }
    .messenger__details {
        display: none;
    }
}

@media (max-width: 768px) {
    .messenger {
        grid-template-columns: 1fr;
    }
    .messenger__sidebar {
        display: none;
    }
}

/* ================================================
   Additional utility classes for Phase 6
   ================================================ */

/* Button variants */
.btn--xs {
    padding: 4px 8px;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
}

.btn--sm {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

.btn--primary {
    background: var(--color-primary);
    color: #fff;
}
.btn--primary:hover {
    background: var(--color-primary-hover);
}

.btn--success {
    background: var(--color-success);
    color: #fff;
}

.btn--warning {
    background: var(--color-warning);
    color: #fff;
}

.btn--danger {
    background: var(--color-danger);
    color: #fff;
}

.btn--active {
    background: var(--color-primary);
    color: #fff;
}

.btn--icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Input */
.input {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    width: 100%;
    transition: border-color var(--transition-fast);
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.input--sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
}

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 2px solid var(--color-border);
}

.table td {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.table tr:hover {
    background: var(--color-bg);
}

.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
}

.table-footer__info {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.table-footer__nav {
    display: flex;
    gap: var(--space-sm);
}

/* Page header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.page-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
}

.page-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

/* Text utilities */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); font-size: var(--font-size-sm); }

/* Dashboard grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.card__title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-md);
    font-weight: 600;
    margin: 0 0 var(--space-md);
}

/* Activity list */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.activity-item:hover {
    background: var(--color-bg);
}

.activity-item__name {
    font-weight: 500;
    font-size: var(--font-size-sm);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.activity-item__meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* Badges */
.badge {
    display: inline-flex;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge--gemini {
    background: #e8f5e9;
    color: #2e7d32;
}

.badge--openai {
    background: #e3f2fd;
    color: #1565c0;
}

.badge--groq {
    background: #fff3e0;
    color: #e65100;
}

/* KPI grid 3 columns variant */
.kpi-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

/* Status badge extras */
.status-badge--default {
    background: var(--color-bg);
    color: var(--color-text-secondary);
}

.kpi-card__icon--danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

/* === Training Button & Popover === */
.messenger__train-btn {
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 2px 4px;
    color: var(--color-text-muted);
    opacity: 0;
    transition: opacity 0.2s, color 0.2s, border-color 0.2s;
    display: inline-flex;
    align-items: center;
}

.messenger__bubble:hover .messenger__train-btn {
    opacity: 1;
}

.messenger__train-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.training-popover {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    width: 340px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    overflow: hidden;
}

.training-popover__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    font-size: var(--font-size-sm);
}

.training-popover__close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--color-text-muted);
    line-height: 1;
}

.training-popover__close:hover {
    color: var(--color-danger);
}

.training-popover__body {
    padding: var(--space-md);
}

.training-popover__label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-xs);
}

.training-popover__original {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    background: var(--color-bg);
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    max-height: 80px;
    overflow-y: auto;
    line-height: 1.4;
}

.training-popover__textarea {
    width: 100%;
    min-height: 80px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    resize: vertical;
    line-height: 1.5;
}

.training-popover__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.training-popover__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.training-popover__success {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    color: var(--color-success);
    font-size: var(--font-size-sm);
    font-weight: 500;
}