/* v0.35 - lịch sử chatbot chuyên nghiệp + responsive + typography gọn */

.lamoi-chat-message p {
    white-space: normal !important;
    line-height: 1.62;
}
.lamoi-message-content li {
    line-height: 1.62;
}
.lamoi-message-content strong {
    display: inline;
    margin-bottom: 0;
}

/* Lịch sử chiếm gần toàn bộ vùng nội dung chat, không còn panel bé. */
.lamoi-chat-history {
    position: absolute;
    inset: 76px 0 0 0;
    z-index: 30;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    min-height: 0;
    background: #f7faf7;
    border-top: 1px solid #e1e9e2;
}
.lamoi-chat-history[hidden] { display: none !important; }

.lamoi-chat-history-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 20px;
    background: #fff;
    border-bottom: 1px solid #e3ebe4;
}
.lamoi-chat-history-head > div {
    display: grid;
    gap: 2px;
}
.lamoi-chat-history-kicker {
    color: #398640;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .11em;
}
.lamoi-chat-history-head strong {
    color: #17291c;
    font-size: 20px;
    line-height: 1.25;
}
.lamoi-chat-history-head small {
    color: #718078;
    font-size: 11px;
}
.lamoi-chat-history-head button {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid #dce6dd;
    border-radius: 12px;
    background: #fff;
    color: #53645a;
    font-size: 22px;
    cursor: pointer;
}

.lamoi-chat-history-body {
    display: grid;
    grid-template-columns: minmax(230px, 34%) minmax(0, 1fr);
    min-height: 0;
    overflow: hidden;
}
.lamoi-chat-history-sidebar {
    min-width: 0;
    overflow: hidden;
    background: #f7faf7;
    border-right: 1px solid #e2eae3;
}
.lamoi-chat-history-list {
    height: 100%;
    overflow-y: auto;
    padding: 14px;
    display: grid;
    align-content: start;
    gap: 10px;
}
.lamoi-chat-history-item {
    display: grid;
    gap: 8px;
    padding: 13px 14px;
    border: 1px solid #dce6dd;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 4px 14px rgba(21, 66, 34, .035);
    cursor: pointer;
    transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.lamoi-chat-history-item:hover,
.lamoi-chat-history-item.is-selected {
    border-color: #73bd78;
    box-shadow: 0 8px 22px rgba(31, 103, 48, .09);
}
.lamoi-chat-history-item.is-selected {
    background: #f1f8f1;
}
.lamoi-chat-history-item.active {
    border-left: 4px solid #49a853;
}
.lamoi-chat-history-item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.lamoi-chat-history-item-top time {
    color: #77847b;
    font-size: 10px;
    white-space: nowrap;
}
.lamoi-chat-history-status {
    display: inline-flex;
    align-items: center;
    padding: 4px 7px;
    border-radius: 999px;
    font-size: 9px;
    font-weight: 800;
}
.lamoi-chat-history-status.active {
    background: #e4f5e5;
    color: #2f7d38;
}
.lamoi-chat-history-status.archived {
    background: #eef1ef;
    color: #66736a;
}
.lamoi-chat-history-title {
    color: #1c2e21;
    font-size: 13px;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}
.lamoi-chat-history-meta {
    color: #718078;
    font-size: 10px;
}
.lamoi-chat-history-actions {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    margin-top: 1px;
}
.lamoi-chat-history-actions button {
    min-height: 31px;
    padding: 6px 10px;
    border: 1px solid #bfd7c1;
    border-radius: 9px;
    background: #fff;
    color: #2f7137;
    font-size: 10px;
    font-weight: 800;
    cursor: pointer;
}
.lamoi-chat-history-actions .history-resume-button {
    background: #398640;
    border-color: #398640;
    color: #fff;
}

.lamoi-chat-history-viewer {
    position: relative;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    background: #fff;
}
.lamoi-chat-history-viewer-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    gap: 5px;
    padding: 24px;
    text-align: center;
    color: #7b897f;
}
.lamoi-chat-history-viewer-empty[hidden] { display: none !important; }
.lamoi-chat-history-viewer-empty strong {
    color: #304136;
    font-size: 15px;
}
.lamoi-chat-history-viewer-empty span {
    font-size: 11px;
}
.lamoi-chat-history-preview {
    height: 100%;
    max-height: none !important;
    overflow-y: auto;
    padding: 22px 22px 36px;
    background: #fff;
    border-top: 0 !important;
}
.lamoi-chat-history-preview[hidden] { display: none !important; }
.lamoi-chat-history-preview .lamoi-chat-message {
    margin-bottom: 16px;
}
.lamoi-chat-history-preview .lamoi-chat-message > div {
    width: calc(100% - 46px);
}
.lamoi-chat-history-empty {
    padding: 22px 12px;
    color: #728078;
    text-align: center;
    font-size: 12px;
}

/* Tablet: ưu tiên vùng xem hội thoại. */
@media (max-width: 900px) {
    .lamoi-chat-history-body {
        grid-template-columns: minmax(205px, 38%) minmax(0, 1fr);
    }
    .lamoi-chat-history-preview {
        padding: 18px 16px 30px;
    }
}

/* Mobile: lịch sử thành màn hình riêng, danh sách ở trên và transcript ở dưới. */
@media (max-width: 760px) {
    .lamoi-chat-history {
        position: fixed;
        inset: 0;
        height: 100dvh;
        z-index: 80;
        grid-template-rows: auto minmax(0, 1fr);
        border: 0;
    }
    .lamoi-chat-history-head {
        padding: max(14px, env(safe-area-inset-top)) 14px 13px;
    }
    .lamoi-chat-history-head strong { font-size: 18px; }
    .lamoi-chat-history-head small { font-size: 10px; }
    .lamoi-chat-history-body {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(170px, 36%) minmax(0, 1fr);
        overflow: hidden;
    }
    .lamoi-chat-history-sidebar {
        border-right: 0;
        border-bottom: 1px solid #e2eae3;
    }
    .lamoi-chat-history-list {
        padding: 10px 12px;
        display: flex;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 9px;
        scroll-snap-type: x proximity;
    }
    .lamoi-chat-history-item {
        flex: 0 0 min(82vw, 310px);
        scroll-snap-align: start;
        padding: 11px 12px;
    }
    .lamoi-chat-history-preview {
        padding: 14px 12px calc(24px + env(safe-area-inset-bottom));
    }
    .lamoi-chat-history-preview .lamoi-chat-message > div {
        max-width: calc(100% - 42px);
    }
    .lamoi-chat-history-actions button {
        min-height: 34px;
        font-size: 11px;
    }
}

/* Điện thoại hẹp: tránh tiêu đề/toolbar đè nhau. */
@media (max-width: 420px) {
    .lamoi-chat-toolbar-actions {
        gap: 2px;
    }
    .lamoi-chat-toolbar-actions button {
        font-size: 11px;
    }
    .lamoi-chat-history-head {
        gap: 10px;
    }
    .lamoi-chat-history-head small {
        max-width: 270px;
    }
}