/**
 * 💬 CHAT STYLES - Modern, Minimal, Adaptive
 *
 * COLOR PALETTE:
 * Primary: #0A66C2 (Trust Blue) - for actions and highlights
 * Secondary: #6C5CE7 (Soft Purple) - for accents
 * Dark: #1A1A2E (Deep Navy) - backgrounds
 * Light: #F8F9FA (Ghost White) - cards and inputs
 * Neutral: #6B7280 (Slate) - text secondary
 * Success: #10B981 (Emerald) - online status
 * Error: #EF4444 (Red) - delete, warnings
 */

:root {
    --color-primary: #0A66C2;
    --color-secondary: #6C5CE7;
    --color-dark: #1A1A2E;
    --color-light: #F8F9FA;
    --color-neutral: #6B7280;
    --color-text-secondary: #9CA3AF;
    --color-border: #E5E7EB;
    --color-success: #10B981;
    --color-error: #EF4444;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}


/**/


.db-chat-page-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1rem;
    width: 100%;
    height: 100%;
}

.db-chats-container {

    --db-chat-bg: var(--surface-1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.5rem;
    background-color: var(--db-chat-bg);
    border-radius: var(--radius--1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
    height: 100%;
}

.db-messages-container {
    --db-messages-bg: var(--surface-1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.5rem;
    background-color: var(--db-messages-bg);
    border-radius: var(--radius--1);
    box-shadow: 1px 2px 7px -6px rgba(0, 0, 0, 0.76);
}

.db-chats-container-toggle-btn {
    display: none;
}

/* Mobile */
@media (max-width: 992px) {

    .db-chats-container-toggle-btn {
        display: flex;
    }

    .db-chat-page-container {
        grid-template-columns: 1fr;
        position: relative;
    }

    .db-chat-page .db-chats-container {
        position: fixed;
        top: 0;
        left: -280px; /* спрятано за экраном */
        width: 280px;
        height: 100%;
        z-index: 1000;
        transition: left 0.3s ease;
    }

    .db-chats-container.visible {
        left: 0;
    }

    .mobile-toggle-btn {
        display: inline-block;
        margin: 0.5rem;
        font-size: 1.2rem;
        background: none;
        border: none;
    }
}

.db-message-date-divider {
    text-align: center;
    font-size: 0.8em;
    color: #888;
    margin: 10px 0;
}


/**/

.db-chats-header {
    padding: 0.25rem 0.5rem;
}
.db-chats-header-title {
    font-size: 1rem;
    font-weight: 500;
}

:root {
    --chat-list-item-bg: #fff;
    --chat-list-item-bg-hover: #f1f1f1;
}



.chat-list {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.chat-list-item {
    position: relative;
    transition: background-color var(--transition);
    border-radius: 0.75rem;
    background-color: var(--chat-list-item-bg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
}
.chat-list-item:hover, .chat-list-item.active {
    background-color: var(--chat-list-item-bg-hover);
}

.chat-list-item a:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9;
}

/**/

.chat-list-item-avatar {
    --avatar-width: 45px;
    --avatar-height: 45px;
    --avatar-radius: 0.5rem;
}

.chat-list-item-image img {
    width: var(--avatar-width);
    height: var(--avatar-height);
    border-radius: var(--avatar-radius);
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-list-item-image-placeholder {
    width: var(--avatar-width);
    height: var(--avatar-height);
    border-radius: var(--avatar-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.25rem;
}

/**/

.chat-list-item-content {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    flex: 1;
    min-width: 0;
}

.chat-list-item-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-list-item-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-list-item-pin, .chat-list-item-muted {
    font-size: 0.8rem;
    color: #888;
}




.chat-list-item-unread {
    background: #d93025;
    color: #fff;
    font-size: 0.75rem;
    font-weight: bold;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
}


/* Левая часть (сообщения) */

.db-messages-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.25rem 0.5rem;
}

.db-messages-header-avatar {
    --avatar-width: 42px;
    --avatar-height: 42px;
    --avatar-radius: 50%;
}

.db-messages-header-image img {
    width: var(--avatar-width);
    height: var(--avatar-height);
    border-radius: var(--avatar-radius);
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.db-chat-item-avatar-default {
    width: var(--avatar-width);
    height: var(--avatar-height);
    border-radius: var(--avatar-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.25rem;
}


.db-messages-header-title {
    font-size: 1rem;
    font-weight: 500;
}


:root {

    --chat-border-color: #eee;
    --chat-border-color-dark: #ccc;

    --chat-border-radius-lg: 1.25rem;

    --chat-a-color: #6a44ea;
    --chat-a-hover-color: #512fc3;

    --own-message-bg: linear-gradient(90deg, #6a44ea, #b749ff);
    --own-message-color: var(--color--text--on-dark);

    --db-my-message-bg: #c571a2;
    --db-my-message-color: #fff;
    --db-my-message-date: rgba(255, 255, 255, 0.65);

    --db-companion-message-bg: rgba(218, 130, 181, 0.11);
    --db-companion-message-color: #68264e;
    --db-companion-message-date: rgba(104, 38, 78, 0.54);
}

.db-chat-window {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

.new-message-hint {
    position: absolute;
    bottom: calc(60px + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-400);
    color: var(--text-white);
    border: none;
    padding: 6px 12px;
    border-radius: var(--chat-border-radius-lg);
    font-size: var(--text--0875);
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: opacity 0.3s ease;
}

/* Общий контейнер сообщений */

.db-messages-list {
    min-height: 55svh;
    max-height: 55svh;
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: #f7f7f7;
    border-radius: 1rem 1rem 0 0;
}

/* Scroll styling */

.db-messages-list::-webkit-scrollbar {
    width: 6px;
}

.db-messages-list::-webkit-scrollbar-track {
    background: transparent;
}

.db-messages-list::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.db-messages-list::-webkit-scrollbar-thumb:hover {
    background: var(--color-neutral);
}


.db-companion-message .db-message-deleted {
    color: var(--db-companion-message-color);
    font-style: italic;
}

@media(max-width: 992px) {
    .db-messages-list {
        padding: 1rem 0;
    }

}

.db-message-meta {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 0.25rem;
}

.db-message-delete-btn {
    background: none;
    border: none;
    color: var(--color--text--on-dark);
    font-size: var(--text--0875);
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
}

.db-message-delete-btn:hover {
    color: red;
}

#newMessageHint {
    position: absolute;
    top: -1rem;
    background: #4a90e2;
    color: white;
    padding: 10px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: translateY(10px);
    z-index: 1000;
}
#newMessageHint:not([hidden]) {
    opacity: 1;
    transform: translateY(0);
}
#newMessageHint:hover {
    background: #357ABD;
}

/**/

.db-chat-form-actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.db-chat-form-emoji-btn {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
}

.db-chat-form-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    padding: 0 0.25rem;
    min-width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    z-index: 2;
}

.db-chat-form-action-btn svg {
    z-index: 1;
}

.db-chat-form-action-btn:hover {
    background: #ccc;
}

.emoji-picker {
    position: absolute;
    bottom: 60px;
    left: 20px;
    z-index: 1000;
    background: #fff;
    border-radius: .5rem;
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
    max-height: 320px;
    overflow: hidden;
}
.emoji-picker {
    width: 320px;
    height: 300px;
}



.chat-form textarea:focus {
    background: #e9ecef;
}


/**/

.db-chat-form {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #f7f7f7;
    padding: 1rem;
    gap: 8px;
    border-radius: 0 0 1rem 1rem;
}

.db-chat-form-container {
    position: relative;
    display: flex;
    align-items: center;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    background: #fff;
    padding: 0.75rem;
    border-radius: 0.75rem;
    box-shadow: 1px 2px 7px -6px rgba(0, 0, 0, 0.76);
}

#chatInput {
    position: relative;
    max-height: 150px;
    overflow-y: auto;
}

.db-chat-form-textarea {
    width: 100%;
    resize: none;
    border: unset;
    border-color: transparent;
    border-radius: 1rem;
    padding: 0.75rem 3.5rem 0.75rem 1rem;
    min-height: 45px;
    max-height: 150px;
    font-size: var(--text--10);
    outline: none;
    transition: background 0.2s;
    overflow-y: hidden;
    background-color: transparent;
}
.db-chat-form-textarea:required, .db-chat-form-textarea:required:invalid {
    border: none;
    border-color: unset;
}

.db-chat-form-textarea::placeholder {
    color: var(--text-secondary);
    opacity: 1;
}

@media(max-width: 992px) {

    .db-chat-form-textarea {
        flex: 1;
        resize: none;
        border: 1px solid var(--chat-border-color-dark);
        border-radius: var(--radius--05);
        padding: 0.5rem;
        min-height: 50px;
        font-size: var(--text--10);
    }

}

.db-reply-bar[hidden] {
    display: none;
}


/**/

/* ───────────────────────────────────────────────────────────── */
/* MESSAGE ITEMS */
/* ───────────────────────────────────────────────────────────── */

.db-message-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    animation: messageSlideIn var(--transition-base) ease-out;
    /* max-width: 65%;*/
    width: 100%;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.db-message-item:hover {
    background: #f1f1f1;
}

.db-message-item.db-my-message {
    align-self: flex-end;
    align-items: flex-end;
}

.db-message-item.db-companion-message {
    align-self: flex-start;
    align-items: flex-start;
}

/* Message bubble */
.db-my-message-text {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    word-wrap: break-word;
    line-height: 1.4;
    font-size: 0.95rem;
}

.db-companion-message .db-my-message-text {
    background: var(--color-light);
    color: var(--text-primary);
    border: 1px solid var(--color-border);
}

.db-message-item[data-optimistic="true"] .db-my-message-text {
    opacity: 0.7;
}

/* Reply block */
.db-message-reply {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(10, 102, 194, 0.1);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.db-message-reply strong {
    color: var(--color-primary);
    font-weight: 600;
}

.db-message-reply span {
    color: var(--color-text-secondary);
    word-wrap: break-word;
}

/* Deleted message */
.db-message-deleted {
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Message meta */
.db-message-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.db-my-message .db-message-meta {
    flex-direction: row-reverse;
}

/* Message buttons */
.db-message-reply-btn,
.db-message-delete-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: var(--spacing-xs);
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.db-message-item:hover .db-message-reply-btn,
.db-message-item:hover .db-message-delete-btn {
    opacity: 1;
}

.db-message-delete-btn {
    color: var(--color-error);
}

.db-message-delete-btn:hover {
    color: #dc2626;
}

/* Message removal animation */
.db-message-removing {
    animation: messageRemove var(--transition-base) ease-in forwards;
}

@keyframes messageRemove {
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* ═══════════════════════════════════════════════════════════ */
/* REPLY BAR */
/* ═══════════════════════════════════════════════════════════ */

.db-reply-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(10, 102, 194, 0.08);
    border-top: 2px solid var(--color-primary);
    animation: slideDown var(--transition-base) ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.db-reply-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 0;
}

.db-reply-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.db-reply-text {
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.db-reply-cancel {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    padding: var(--spacing-sm);
    color: var(--color-error);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.db-reply-cancel:hover {
    opacity: 1;
}



/* ═══════════════════════════════════════════════════════════ */
/* LAYOUT & CONTAINERS */
/* ═══════════════════════════════════════════════════════════ */

.db-chat-page-container {
    display: flex;
    height: 100vh;
    background: #FFFFFF;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: var(--text-primary);
}

.db-chats-container {
    width: 320px;
    background: var(--color-light);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--transition-base);
}

.db-messages-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════ */
/* CHAT HEADER & SIDEBAR */
/* ═══════════════════════════════════════════════════════════ */

.db-chats-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background: #FFFFFF;
}

.db-chats-header-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* ═══════════════════════════════════════════════════════════ */
/* CHAT LIST */
/* ═══════════════════════════════════════════════════════════ */

.db-chat-list-item {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.db-chat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: transparent;
    border: 1px solid transparent;
    position: relative;
}

.db-chat-item:hover {
    background: rgba(10, 102, 194, 0.08);
    border-color: rgba(10, 102, 194, 0.15);
}

.db-chat-item.active {
    background: rgba(10, 102, 194, 0.15);
    border-color: var(--color-primary);
    box-shadow: inset 0 0 0 1px var(--color-primary);
}

.db-chat-item-avatar {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    margin: 0;
    border-radius: var(--radius-full);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.db-chat-item-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.db-chat-item-avatar-default {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.db-chat-item-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.db-chat-item-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.db-chat-item-name {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    flex: 1;
}

.db-chat-item-name a {
    color: inherit;
    text-decoration: none;
}

.db-chat-item-pin,
.db-chat-item-muted {
    font-size: 0.8rem;
    margin-left: var(--spacing-sm);
}

.db-chat-item-time {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.db-chat-item-message {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.db-chat-item-unread {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

/* ═══════════════════════════════════════════════════════════ */
/* MESSAGES HEADER */
/* ═══════════════════════════════════════════════════════════ */

.db-messages-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background: #FFFFFF;
}

.db-messages-header-image {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.db-messages-header-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.db-messages-header h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.db-messages-header > div:nth-child(2) {
    flex: 1;
}

.db-messages-header small {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* ═══════════════════════════════════════════════════════════ */
/* CHAT WINDOW & MESSAGES */
/* ═══════════════════════════════════════════════════════════ */

.db-chat-window {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #FFFFFF;
    position: relative;
}

.db-messages-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Scroll styling */
.db-messages-list::-webkit-scrollbar {
    width: 6px;
}

.db-messages-list::-webkit-scrollbar-track {
    background: transparent;
}

.db-messages-list::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.db-messages-list::-webkit-scrollbar-thumb:hover {
    background: var(--color-neutral);
}

/* ───────────────────────────────────────────────────────────── */
/* MESSAGE ITEMS */
/* ───────────────────────────────────────────────────────────── */

.db-message-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    animation: messageSlideIn var(--transition-base) ease-out;
    max-width: 65%;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.db-message-item.db-my-message {
    align-self: flex-end;
    align-items: flex-end;
}

.db-message-item.db-companion-message {
    align-self: flex-start;
    align-items: flex-start;
}

/* Message bubble */
.db-my-message-text {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    word-wrap: break-word;
    line-height: 1.4;
    font-size: 0.95rem;
}

.db-companion-message .db-my-message-text {
    background: var(--color-light);
    color: var(--text-primary);
    border: 1px solid var(--color-border);
}

.db-message-item[data-optimistic="true"] .db-my-message-text {
    opacity: 0.7;
}

/* Reply block */
.db-message-reply {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(10, 102, 194, 0.1);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.db-message-reply strong {
    color: var(--color-primary);
    font-weight: 600;
}

.db-message-reply span {
    color: var(--color-text-secondary);
    word-wrap: break-word;
}

/* Deleted message */
.db-message-deleted {
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Message meta */
.db-message-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.db-my-message .db-message-meta {
    flex-direction: row-reverse;
}

/* Message buttons */
.db-message-reply-btn,
.db-message-delete-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: var(--spacing-xs);
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.db-message-item:hover .db-message-reply-btn,
.db-message-item:hover .db-message-delete-btn {
    opacity: 1;
}

.db-message-delete-btn {
    color: var(--color-error);
}

.db-message-delete-btn:hover {
    color: #dc2626;
}

/* Message removal animation */
.db-message-removing {
    animation: messageRemove var(--transition-base) ease-in forwards;
}

@keyframes messageRemove {
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* ═══════════════════════════════════════════════════════════ */
/* REPLY BAR */
/* ═══════════════════════════════════════════════════════════ */

.db-reply-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(10, 102, 194, 0.08);
    border-top: 2px solid var(--color-primary);
    animation: slideDown var(--transition-base) ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.db-reply-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 0;
}

.db-reply-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.db-reply-text {
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.db-reply-cancel {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    padding: var(--spacing-sm);
    color: var(--color-error);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.db-reply-cancel:hover {
    opacity: 1;
}

/* ═══════════════════════════════════════════════════════════ */
/* FORM & INPUT */
/* ═══════════════════════════════════════════════════════════ */

.db-chat-form {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background: #FFFFFF;
}

.db-chat-form-container {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.db-chat-form-textarea {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
    transition: all var(--transition-fast);
    background: var(--color-light);
    color: var(--text-primary);
}

.db-chat-form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(10, 102, 194, 0.1);
}

.db-chat-form-textarea::placeholder {
    color: var(--color-text-secondary);
}

.db-chat-form-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.db-chat-form-action-btn,
.db-chat-form-emoji-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-neutral);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.db-chat-form-action-btn:hover,
.db-chat-form-emoji-btn:hover {
    background: rgba(10, 102, 194, 0.1);
    color: var(--color-primary);
}

.db-chat-form-action-btn svg,
.db-chat-form-emoji-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Send button */
.button[data-chat-send] {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.button[data-chat-send]:hover:not(:disabled) {
    background: #0853A3;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.button[data-chat-send]:disabled {
    background: var(--color-border);
    color: var(--color-text-secondary);
    cursor: not-allowed;
}

/* ═══════════════════════════════════════════════════════════ */
/* NEW MESSAGE HINT */
/* ═══════════════════════════════════════════════════════════ */

[data-chat-new-hint] {
    position: absolute;
    bottom: var(--spacing-xl) + var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-base) ease-out;
    z-index: 10;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 10px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

[data-chat-new-hint]:hover {
    background: #0853A3;
}

/* ═══════════════════════════════════════════════════════════ */
/* SIDEBAR TOGGLE BUTTON */
/* ═══════════════════════════════════════════════════════════ */

.db-chats-container-toggle-btn {
    display: none;
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-primary);
    transition: all var(--transition-fast);
    margin: var(--spacing-lg) var(--spacing-lg) 0;
}

.db-chats-container-toggle-btn:hover {
    background: rgba(10, 102, 194, 0.1);
    border-color: var(--color-primary);
}

/* ═══════════════════════════════════════════════════════════ */
/* RESPONSIVE DESIGN */
/* ═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
    .db-chat-page-container {
        flex-direction: column;
    }

    .db-chats-container {
        width: 100%;
        height: auto;
        max-height: 50vh;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        position: relative;
        z-index: 5;
    }

    .db-messages-container {
        height: 50vh;
    }
}

@media (max-width: 768px) {
    .db-chat-page-container {
        flex-direction: column;
    }

    .db-chats-container {
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        max-height: 100%;
        transform: translateX(-100%);
        z-index: 1000;
        border-right: none;
        border-bottom: none;
        background: var(--color-light);
        transition: transform var(--transition-base);
    }

    .db-chats-container.visible {
        transform: translateX(0);
    }

    .db-messages-container {
        height: 100vh;
    }

    .db-chats-container-toggle-btn {
        display: block;
    }

    .db-message-item {
        max-width: 85%;
    }

    .db-chat-form-textarea {
        min-height: 40px;
    }

    .db-chat-form-container {
        gap: var(--spacing-sm);
    }

    .button[data-chat-send] {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .db-chats-header-title {
        font-size: 1.1rem;
    }

    .db-messages-header {
        padding: var(--spacing-md);
    }

    .db-messages-header-image {
        width: 40px;
        height: 40px;
    }

    .db-messages-header h2 {
        font-size: 0.95rem;
    }

    .db-message-item {
        max-width: 90%;
    }

    .db-chat-form {
        padding: var(--spacing-md);
    }

    .db-chat-form-container {
        gap: var(--spacing-xs);
    }

    .db-reply-bar {
        padding: var(--spacing-md);
    }

    .db-chat-item {
        padding: var(--spacing-md);
    }

    .db-chat-list-item {
        gap: var(--spacing-xs);
        padding: var(--spacing-xs);
    }
}

/* ═══════════════════════════════════════════════════════════ */
/* UTILITY & ACCESSIBILITY */
/* ═══════════════════════════════════════════════════════════ */

.chat-empty {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--spacing-2xl);
    font-size: 0.95rem;
}

/* Focus styles for accessibility */
button:focus,
textarea:focus {
    outline: none;
}

button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Emoji picker base styling (customize per your implementation) */
.emoji-picker {
    position: absolute;
    display: none;
    z-index: 100;
}

.emoji-picker.visible {
    display: block;
}

.dropdown-menu {
    list-style: none;
    margin: 0;
    padding: var(--spacing-sm);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
}

.dropdown-menu li {
    display: flex;
}

.dropdown-menu .btn-text {
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    letter-spacing: 0.25px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: background var(--transition);
}

.dropdown-menu .btn-text:hover, .dropdown-menu .btn-text.tabs-tab-active {
    background: var(--bg-accent-1);
}

/* Print styles */
@media print {
    .db-chat-form,
    .db-chats-container-toggle-btn,
    .db-chat-form-actions {
        display: none;
    }
}