/* ===== Chat widget ===== */

/* Floating tab peeking from the left edge */
.kpi-chat-tab {
    position: fixed;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 72px;
    border: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: var(--clr-accent);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    box-shadow: var(--shadow-md);
    transition: left var(--transition-base), background var(--transition-base);
}
.kpi-chat-tab:hover {
    left: -14px;
    background: var(--clr-accent-hover);
}
.kpi-chat-tab i { font-size: 1.25rem; }
.kpi-chat-tab:focus-visible { outline: 2px solid var(--clr-accent-hover); outline-offset: 2px; }

.kpi-chat-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: var(--fw-bold);
    color: #fff;
    background: var(--clr-error);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

/* Drawer */
.kpi-chat-drawer {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: min(420px, 100vw);
    display: flex;
    flex-direction: column;
    background: var(--clr-surface);
    border-right: 1px solid var(--clr-border);
    box-shadow: var(--shadow-xl);
    transform: translateX(-102%);
    transition: transform var(--transition-slow);
    z-index: 1060;
}
.kpi-chat-drawer.open { transform: translateX(0); }

.kpi-chat-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
    border-bottom: 1px solid var(--clr-border);
    background: var(--clr-bg-secondary);
}
.kpi-chat-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}
.kpi-chat-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: var(--fw-semibold);
    color: var(--clr-text-primary);
}
.kpi-chat-title i { color: var(--clr-accent); }
.kpi-chat-close {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--clr-text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.kpi-chat-close:hover { background: var(--clr-bg-tertiary); color: var(--clr-text-primary); }

.kpi-chat-tabs {
    display: flex;
    gap: var(--space-2);
}
.kpi-chat-tab-btn {
    position: relative;
    flex: 1;
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    color: var(--clr-text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.kpi-chat-tab-btn:hover { color: var(--clr-text-primary); background: var(--clr-bg-tertiary); }
.kpi-chat-tab-btn.active {
    color: var(--clr-accent);
    background: var(--clr-accent-light);
    font-weight: var(--fw-semibold);
}
.kpi-chat-tab-btn .kpi-chat-badge {
    position: static;
    margin-left: var(--space-2);
    min-width: 16px;
    height: 16px;
    font-size: 0.625rem;
}

.kpi-chat-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* Messages list */
.kpi-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    scroll-behavior: smooth;
}
.kpi-chat-loadmore {
    align-self: center;
    border: none;
    background: transparent;
    color: var(--clr-accent);
    font-size: var(--text-xs);
    font-weight: var(--fw-medium);
    cursor: pointer;
    padding: var(--space-1);
}
.kpi-chat-loadmore:hover { text-decoration: underline; }

.kpi-msg {
    display: flex;
    gap: var(--space-2);
    max-width: 82%;
}
.kpi-msg-mine { align-self: flex-end; flex-direction: row-reverse; }
.kpi-msg-theirs { align-self: flex-start; }

.kpi-msg-avatar {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--clr-accent-light);
    color: var(--clr-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    overflow: hidden;
}
.kpi-msg-avatar img { width: 100%; height: 100%; object-fit: cover; }

.kpi-msg-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.kpi-msg-meta {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    font-size: var(--text-xs);
}
.kpi-msg-author { font-weight: var(--fw-semibold); color: var(--clr-text-primary); }
.kpi-msg-time { color: var(--clr-text-tertiary); white-space: nowrap; }
.kpi-msg-mine .kpi-msg-meta { flex-direction: row-reverse; }

.kpi-msg-text {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--clr-text-primary);
    background: var(--clr-bg-tertiary);
    border-radius: var(--radius-md);
    border-top-left-radius: 2px;
    word-break: break-word;
    white-space: pre-wrap;
}
.kpi-msg-mine .kpi-msg-text {
    background: var(--clr-accent);
    color: #fff;
    border-radius: var(--radius-md);
    border-top-right-radius: 2px;
}

/* Input */
.kpi-chat-input {
    display: flex;
    align-items: flex-end;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--clr-border);
    background: var(--clr-surface);
}
.kpi-chat-input textarea {
    flex: 1;
    min-height: 40px;
    max-height: 120px;
    resize: none;
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--clr-text-primary);
    background: var(--clr-bg-secondary);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.kpi-chat-input textarea:focus {
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px var(--clr-accent-subtle);
}
.kpi-chat-send {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-md);
    background: var(--clr-accent);
    color: #fff;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
}
.kpi-chat-send:hover { background: var(--clr-accent-hover); transform: translateY(-1px); }
.kpi-chat-send:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Private: search + users + conversations */
.kpi-chat-search {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--clr-border);
}
.kpi-chat-search input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    color: var(--clr-text-primary);
    background: var(--clr-bg-secondary);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.kpi-chat-search input:focus {
    border-color: var(--clr-accent);
    box-shadow: 0 0 0 3px var(--clr-accent-subtle);
}

.kpi-chat-users { display: none; flex-direction: column; max-height: 45%; overflow-y: auto; border-bottom: 1px solid var(--clr-border); }
.kpi-chat-users.show { display: flex; }

.kpi-chat-user-item,
.kpi-chat-convo-item {
    display: flex;
    align-items: stretch;
    position: relative;
    cursor: pointer;
    background: transparent;
    transition: background var(--transition-fast);
}
.kpi-chat-user-item:hover,
.kpi-chat-convo-item:hover { background: var(--clr-bg-secondary); }
.kpi-chat-user-item.active,
.kpi-chat-convo-item.active { background: var(--clr-accent-light); }

.kpi-chat-convo-main {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border: none;
    background: transparent;
    text-align: left;
    font-family: var(--font-family);
    cursor: pointer;
}

.kpi-chat-item-avatar {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: var(--clr-accent-light);
    color: var(--clr-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--fw-bold);
    overflow: hidden;
}
.kpi-chat-item-avatar img { width: 100%; height: 100%; object-fit: cover; }

.kpi-chat-item-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.kpi-chat-item-line {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-2);
}
.kpi-chat-item-name { font-size: var(--text-sm); font-weight: var(--fw-semibold); color: var(--clr-text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kpi-chat-item-sub { font-size: var(--text-xs); color: var(--clr-text-tertiary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kpi-chat-item-time { flex-shrink: 0; font-size: var(--text-xs); color: var(--clr-text-tertiary); }
.kpi-chat-item-unread {
    flex-shrink: 0;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: var(--fw-bold);
    color: #fff;
    background: var(--clr-accent);
    border-radius: var(--radius-full);
}

.kpi-chat-conversations { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }

/* Open conversation */
.kpi-chat-convo { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.kpi-chat-convo-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--clr-border);
    background: var(--clr-bg-secondary);
}
.kpi-chat-convo-back {
    border: none;
    background: transparent;
    color: var(--clr-text-secondary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
}
.kpi-chat-convo-back:hover { background: var(--clr-bg-tertiary); color: var(--clr-text-primary); }
.kpi-chat-convo-name { font-size: var(--text-sm); font-weight: var(--fw-semibold); color: var(--clr-text-primary); }
.kpi-chat-convo-sub { font-size: var(--text-xs); color: var(--clr-text-tertiary); }

/* Empty / loading */
.kpi-chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-8) var(--space-4);
    text-align: center;
    color: var(--clr-text-tertiary);
    font-size: var(--text-sm);
}
.kpi-chat-empty i { font-size: 2rem; opacity: 0.6; margin-bottom: var(--space-1); }

.kpi-chat-loading {
    padding: var(--space-6);
    text-align: center;
    color: var(--clr-text-tertiary);
    font-size: var(--text-sm);
}

/* Conversation menu (3 dots) */
.kpi-chat-convo-menu {
    position: relative;
    display: flex;
    align-items: center;
    padding-right: var(--space-2);
}
.kpi-chat-convo-menu-btn {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--clr-text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.kpi-chat-convo-menu-btn:hover { background: var(--clr-bg-tertiary); color: var(--clr-text-primary); }
.kpi-chat-convo-menu-pop {
    position: absolute;
    right: var(--space-1);
    top: calc(100% - var(--space-1));
    min-width: 210px;
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 30;
}
.kpi-chat-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    color: var(--clr-text-primary);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}
.kpi-chat-menu-item:hover { background: var(--clr-bg-secondary); }
.kpi-chat-menu-item i { width: 16px; color: var(--clr-text-tertiary); }
.kpi-chat-menu-item.danger { color: var(--clr-error); }
.kpi-chat-menu-item.danger i { color: var(--clr-error); }
.kpi-chat-menu-item.danger:hover { background: var(--clr-error-bg); }

/* Invite modal */
.kpi-chat-invite-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1070;
    padding: var(--space-4);
}
.kpi-chat-invite-panel {
    width: min(420px, 100%);
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}
.kpi-chat-invite-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--clr-border);
    background: var(--clr-bg-secondary);
}
.kpi-chat-invite-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--clr-text-primary);
}
.kpi-chat-invite-title i { color: var(--clr-accent); }
.kpi-chat-invite-results {
    flex: 1;
    min-height: 120px;
    max-height: 45vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.kpi-chat-invite-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border: none;
    background: transparent;
    text-align: left;
    font-family: var(--font-family);
    cursor: pointer;
    width: 100%;
    transition: background var(--transition-fast);
}
.kpi-chat-invite-item:hover { background: var(--clr-bg-secondary); }
.kpi-chat-invite-plus { color: var(--clr-accent); flex-shrink: 0; }

/* Members modal */
.kpi-chat-members {
    flex: 1;
    min-height: 120px;
    max-height: 45vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: var(--space-2);
}
.kpi-chat-member-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-sm);
}