#messagesContainer {
    flex: 1;
    overflow-y: auto;
    display: none;
    width: 100%;
    margin: 0 auto;
    padding: var(--space-lg) 0;
    box-sizing: border-box;
    justify-content: center;
}


.message {
    display: flex;
    margin-bottom: var(--space-lg);
    max-width: 80%;
    position: relative;
}

.message.user {
    margin-top: var(--space-lg);
    margin-left: auto;
    padding-left: 10%;
    margin-right: auto;
    flex-direction: column;
    max-width: 66%;
    display: flex;
    justify-content: flex-end;
}

.message.ai {
    width: 66%;
    margin: auto;
}

.message-content {
    background-color: var(--bg-tertiary);
    padding-left: var(--space-md);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    line-height: 1.5;
}

.message-content h1 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-top: 3rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-primary);
    border-bottom: 1px solid var(--bg-tertiary);
    padding-bottom: 0.4rem;
    line-height: 1.2;
}

.message-content h1:first-of-type {
    margin-top: 0 !important;
}

.message-content h2 {
    font-size: 1.34375rem;
    font-weight: 650;
    margin-top: 2.5rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-primary);
    border-bottom: 1px solid var(--bg-tertiary);
    padding-bottom: 0.2rem;
    line-height: 1.3;
}

.message-content h2:first-of-type {
    margin-top: 1.2rem !important;
}

.message-content h3 {
    font-size: 1.3125rem;
    font-weight: 600;
    margin-top: 2.5rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-primary);
    line-height: 1.4;
}

.message-content h3:first-of-type {
    margin-top: 0 !important;
}

.message-content h4 {
    font-size: 1.28125rem;
    font-weight: 550;
    margin-top: 2rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-primary);
    line-height: 1.4;
    border-top: 1px solid var(--bg-tertiary);
    padding-top: 2rem;
}

.message-content h4:first-of-type {
    margin-top: 0 !important;
}

.message-content h5 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: 1.5rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-primary);
    letter-spacing: 0.04em;
    line-height: 1.4;
}

.message-content h5:first-of-type {
    margin-top: 0 !important;
}

.message-content hr {
    border: none;
    border-top: 2px solid var(--bg-tertiary);
    margin: 2.5rem 0;
}

.message-content p {
    font-size: 20px;
    line-height: 1.7;
}


.message.user .message-content {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    margin-right: 0.3rem;
    margin-left: auto;
    border-radius: 18px 18px 4px 18px;
    box-shadow: var(--shadow-sm);
    padding: var(--space-md) var(--space-lg);
    font-size: 18px;
    word-break: break-word;
    min-width: 40px;
    max-width: 100%;
}


.message.ai .message-content {
    background-color: var(--bg-primary);
}

.message-content ol {
    padding-left: 1.5em;
    font-size: 20px;
    margin-left: 0;
    list-style-type: decimal;
}

.message-content ol li {
    margin-bottom: 0.5em;
    font-size: 20px;
}

.message-content ul {
    padding-left: 1.5em;
    font-size: 20px;
    margin-left: 0;
    list-style-type: disc;
}

.message-content ul li {
    margin-bottom: 0.5em;
    font-size: 20px;
}

.message-content ol ol,
.message-content ul ul,
.message-content ol ul,
.message-content ul ol {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

.message-content ol ol {
    list-style-type: lower-alpha;
}

.message-content ul ul {
    list-style-type: circle;
}

.message-content ol ol ol {
    list-style-type: lower-roman;
}

.message-content ul ul ul {
    list-style-type: square;
}

.avatar {
    display: none;
}

.message.user .avatar {
    background-color: var(--accent-primary);
}

.avatar svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

.message.user .avatar svg {
    color: var(--bg-primary);
}

.message-content a {
    color: #66D9EF;
    text-decoration: underline;
}

.message-content a:hover {
    color: #66D9EF;
    text-decoration: none;
}


.message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em 0;
    font-size: 18px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.message-content th,
.message-content td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--bg-secondary, #e0e0e0);
    vertical-align: top;
}

.message-content th {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.message-content td {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
}

.message-content tbody tr:nth-child(even) td {
    background-color: var(--bg-tertiary);
}

.message-content tbody tr:hover td {
    background-color: rgba(102, 217, 239, 0.1);
    transition: background-color 0.2s ease;
}

.message-content td:first-child {
    font-weight: 500;
}

.message-content td:last-child {
    text-align: right;
    font-family: 'Courier New', monospace;
}

.message-content tbody tr:last-child td {
    border-bottom: none;
}

@media (max-width: 768px) {
    .message-content table {
        font-size: 14px;
    }

    .message-content th,
    .message-content td {
        padding: 8px 12px;
    }

    .message-content th {
        font-size: 14px;
    }

    .message-content td {
        font-size: 14px;
    }
}

.message-content table.tax-calc {
    border: 2px solid var(--accent-primary);
}

.message-content table.tax-calc th {
    background-color: var(--accent-primary);
}

.message-content table.tax-calc .total-row td {
    font-weight: bold;
    border-top: 2px solid var(--accent-primary);
    background-color: rgba(102, 217, 239, 0.1);
}

.copy-btn {
    background-color: #f3f3f3;
    border: 1px solid #ccc;
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-btns {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 6px;
}

.icon-btn {
    background-color: transparent;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s ease;
}

.icon-btn:hover {
    color: var(--accent-primary-hover);
}

strong {
    color: var(--text-primary);
    font-weight: 600;

    border-radius: 3px;
}

.message-docs {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    align-self: flex-start;
}

.message.user .message-docs {
    align-self: flex-end;
}


.doc-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: calc(var(--space-xs) + 1px) var(--space-md);
    border: 1px solid var(--bg-tertiary);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.doc-chip:hover {
    transform: translateY(-1px);
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.doc-chip:active {
    transform: translateY(0);
}

.doc-chip__icon {
    flex: 0 0 25px;
    width: 25px;
    height: 25px;
    line-height: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.doc-chip__icon svg {
    width: 100%;
    height: 100%;
    display: block;
}

.doc-chip__name {
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: inherit;
}

.doc-chip__ext {
    margin-left: auto;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    text-transform: lowercase;
}

.doc-chip--img {
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
}

.doc-chip--img img {
    display: block;
    max-width: 200px;
    max-height: 150px;
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-sm);
    outline: 1px solid var(--bg-tertiary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.doc-chip--img img:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ===== Document overlay ===== */
.doc-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
}

.doc-overlay.open {
    display: block;
}

.doc-overlay__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    backdrop-filter: blur(2px);
}

/* Модалка строго по центру, НЕ на весь экран */
.doc-overlay__body {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(960px, 92vw);
    height: min(88vh, 900px);
    background: var(--bg-secondary);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.doc-overlay__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--bg-tertiary);
    background: var(--bg-secondary);
}

.doc-overlay__title {
    font-size: var(--font-size-md);
    color: var(--text-primary);
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.doc-overlay__actions {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.doc-overlay__action {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
}

.doc-overlay__action:hover {
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.doc-overlay__close {
    margin-left: var(--space-sm);
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 2px 8px;
    cursor: pointer;
}

.doc-overlay__close:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
}

.doc-overlay__content {
    flex: 1 1 auto;
    overflow: auto;
    background: var(--bg-tertiary);
    padding: var(--space-md);
}

.doc-overlay__content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    background: var(--bg-tertiary);
}

.doc-overlay__content iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
    background: var(--bg-tertiary);
}

.doc-overlay__content {
    flex: 1 1 auto;
    overflow: auto;
    background: var(--bg-tertiary);
    padding: var(--space-md);
}

.doc-overlay__pdf {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: var(--bg-tertiary);
}

.doc-overlay__content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.doc-overlay__fallback {
    color: var(--text-secondary);
    padding: var(--space-md);
    text-align: center;
}


@media (max-width: 720px) {
    .doc-overlay__body {
        width: 94vw;
        height: 86vh;
    }
}