/* ============================================================
   Корпоративный чат — компактный messenger layout.
   Двухпанельная раскладка: список чатов слева, беседа справа.
   ============================================================ */

.chat-page {
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* Вкладки Чат / Уведомления */
.chat-tabs {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.chat-tab {
    appearance: none;
    border: none;
    background: transparent;
    padding: 6px 12px;
    border-radius: 999px;
    font: inherit;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    transition: background .15s ease, color .15s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.chat-tab:hover { background: var(--surface-row-hover, #ebe7e0); }
.chat-tab.active { background: rgba(0, 0, 0, 0.07); color: var(--text); }
.chat-tab .chat-tab-badge {
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--danger);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.chat-tab-body { flex: 1; min-height: 0; display: flex; }

/* ---------- Двухпанельная раскладка ---------- */
.chat {
    flex: 1;
    display: flex;
    min-height: 0;
    background: var(--surface-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* Список чатов */
.chat-aside {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-right: 1px solid var(--border);
}
.chat-aside-head { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.chat-search {
    width: 100%;
    height: 32px;
    padding: 0 10px;
    border: 1px solid transparent;
    border-radius: 999px;
    font: inherit;
    font-size: 13px;
    outline: none;
    background: rgba(118, 118, 128, 0.12);
    transition: border-color .15s ease, background .15s ease;
}
.chat-search:focus { border-color: var(--primary); background: var(--surface-card); }
.chat-list { flex: 1; overflow-y: auto; overscroll-behavior: contain; }
.chat-section-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-muted);
    padding: 8px 12px 3px;
    font-weight: 700;
}

/* Conversation list item — compact */
.chat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font: inherit;
    transition: background .12s ease;
}
.chat-item:hover { background: var(--surface-page); }
.chat-item.active { background: var(--surface-row-hover); }
.chat-item-body { flex: 1; min-width: 0; }
.chat-item-top { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; }
.chat-item-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-item-time { font-size: 10px; color: var(--text-muted); flex-shrink: 0; }
.chat-item-bottom { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 1px; }
.chat-item-last {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-unread {
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Аватар — smaller */
.chat-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
}
.chat-avatar.general { background: linear-gradient(135deg, var(--primary), var(--primary-hover)); }

/* Правая панель — беседа */
.chat-main { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.chat-main-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.chat-back {
    display: none;
    appearance: none;
    border: none;
    background: transparent;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    color: var(--text);
    padding: 2px;
}
.chat-main-title { font-weight: 600; font-size: 14px; }
.chat-main-sub { font-size: 11px; color: var(--text-muted); }

/* Messages area — fills available height, scrollable */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--surface-page);
}
.chat-day {
    align-self: center;
    font-size: 11px;
    color: var(--text-muted);
    background: var(--surface-card);
    border: 1px solid var(--border);
    padding: 2px 10px;
    border-radius: 999px;
    margin: 6px 0;
}

/* Message bubble — compact, width by content */
.msg {
    max-width: 70%;
    padding: 6px 10px 5px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.4;
    white-space: normal;
    word-wrap: break-word;
    position: relative;
    animation: msg-in .2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes msg-in {
    from { opacity: 0; transform: translateY(4px) scale(.98); }
    to { opacity: 1; transform: none; }
}
.msg.theirs {
    align-self: flex-start;
    background: rgba(118, 118, 128, 0.12);
    border: none;
    border-bottom-left-radius: 4px;
}
.msg.mine {
    align-self: flex-end;
    background: var(--primary);
    color: #fff;
    border-bottom-right-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.10);
}

/* Consecutive message grouping: reduce top-radius for stacked bubbles */
.msg.theirs + .msg.theirs {
    border-top-left-radius: 4px;
}
.msg.mine + .msg.mine {
    border-top-right-radius: 4px;
}
/* Show sender only for first in a group */
.msg.grouped .msg-sender { display: none; }

.msg-sender {
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1px;
}
.msg-time {
    font-size: 10px;
    opacity: .6;
    margin-left: 6px;
    float: right;
    margin-top: 3px;
}
.msg.mine .msg-time { opacity: .8; }

/* Grouped messages: tighter spacing, smaller timestamp */
.msg.grouped {
    margin-top: 0;
}
.msg.grouped .msg-time {
    margin-top: 0;
}
/* Show timestamp only on last message of a group (or always show all) */
.msg.grouped:not(:last-child) .msg-time {
    display: none;
}

.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    color: var(--text-muted);
    padding: 24px;
}
.chat-empty-icon { font-size: 36px; opacity: .5; }

/* Поле ввода — compact, pinned bottom */
.chat-input {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    padding: 8px 10px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--surface-card);
}
.chat-input textarea {
    flex: 1;
    resize: none;
    max-height: 100px;
    min-height: 34px;
    padding: 7px 12px;
    border: 1px solid transparent;
    border-radius: 18px;
    font: inherit;
    font-size: 13px;
    line-height: 1.35;
    outline: none;
    background: rgba(118, 118, 128, 0.12);
    transition: border-color .15s ease, background .15s ease;
}
.chat-input textarea:focus { border-color: var(--primary); background: var(--surface-card); }
.chat-send {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s ease, transform .15s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 4px rgba(var(--primary-rgb), 0.3);
}
.chat-send:hover { background: var(--primary-hover); transform: translateY(-1px); }
.chat-send:active { transform: scale(.92); }
.chat-send:disabled { opacity: .5; cursor: default; transform: none; box-shadow: none; }

/* Attachment preview bar */
.chat-file-preview {
    flex-shrink: 0;
}

/* Attach button */
.chat-attach {
    flex-shrink: 0;
}

/* ---------- Мобильная адаптация ---------- */
@media (max-width: 768px) {
    .chat-aside { width: 100%; }
    .chat-main { display: none; }
    .chat.chat--open .chat-aside { display: none; }
    .chat.chat--open .chat-main { display: flex; }
    .chat-back { display: block; }
    .msg { max-width: 85%; }
}

/* ---------- Тёмная тема ---------- */
body.theme-dark .chat-tab.active { background: rgba(255, 255, 255, 0.12); color: var(--text); }
body.theme-dark .chat-item.active { background: rgba(255, 255, 255, 0.10); }
body.theme-dark .chat-search { background: rgba(118, 118, 128, 0.24); }
body.theme-dark .chat-search:focus,
body.theme-dark .chat-input textarea:focus { background: var(--surface-card); }
body.theme-dark .msg.theirs { background: rgba(118, 118, 128, 0.24); }
body.theme-dark .chat-input textarea { background: rgba(118, 118, 128, 0.24); }