:root {
    --primary-bg: #3a3a3a00;
    --secondary-bg: #26262600;
    --text-primary: #f4f4f5;
    --text-secondary: #e4e4e7;
    --text-muted: #a1a1aa;
    --link-color: #60a5fa;
    --link-hover: #93c5fd;
    --border-color: rgba(255, 255, 255, 0.12);
    --code-bg: rgba(0, 0, 0, 0.4);
    --code-border: rgba(255, 255, 255, 0.08);
    --blockquote-bg: rgba(255, 255, 255, 0.02);
    --blockquote-border: rgba(255, 255, 255, 0.15);
    --table-header-bg: rgba(255, 255, 255, 0.06);
    --table-cell-bg: rgba(255, 255, 255, 0.02);
    --table-row-hover: rgba(255, 255, 255, 0.04);
    --table-border: rgba(255, 255, 255, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.2);
    --gradient-start: rgba(30, 30, 32, 0.95);
    --gradient-end: rgba(40, 40, 44, 0.95);

    /* Callout colors */
    --callout-warning-bg: rgba(251, 191, 36, 0.1);
    --callout-warning-border: #f59e0b;
    --callout-warning-text: #fbbf24;
    --callout-tip-bg: rgba(34, 197, 94, 0.1);
    --callout-tip-border: #22c55e;
    --callout-tip-text: #4ade80;
    --callout-info-bg: rgba(59, 130, 246, 0.1);
    --callout-info-border: #3b82f6;
    --callout-info-text: #60a5fa;
    --callout-error-bg: rgba(239, 68, 68, 0.1);
    --callout-error-border: #ef4444;
    --callout-error-text: #f87171;

    /* ChatGPT-inspired typography + spacing constants */
    --chat-font-size: 15px;
    --chat-line-height: 1.7;
    --chat-letter-spacing: 0.01em;
    --chat-max-line-width: 72ch;

    --wrap-normal: normal;
    --wrap-overflow: break-word;
    --wrap-hyphenation: none;

    --text-align: left;
    --text-justify: none;

    --selection-bg: rgba(255, 255, 255, 0.18);
    --selection-color: inherit;

    --emoji-scale: 1em;
    --emoji-vertical-align: -0.05em;

    --numeric-font-variant: tabular-nums;
    --quote-style: auto;

    --image-max-width: 100%;
    --image-radius: 0.75rem;
    --image-margin-y: 0.75rem;

    --math-font-size: 0.95em;
    --math-line-height: 1.5;
    --math-margin-y: 0.75rem;

    --kbd-font-size: 0.85em;
    --kbd-padding-x: 0.4em;
    --kbd-padding-y: 0.15em;
    --kbd-radius: 0.35rem;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;

    --caret-color: auto;
    --user-select: text;
    --focus-outline: none;
    --focus-ring: none;

    --transition-fast: 120ms ease-out;
    --transition-normal: 180ms ease-out;

    --min-font-size: 14px;
    --min-line-height: 1.5;
    --min-contrast-ratio: 4.5;
    --font-smoothing-webkit: antialiased;
    --font-smoothing-moz: grayscale;
    --text-rendering: optimizeLegibility;
    --font-kerning: normal;
    --font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
    --font-variant-ligatures: contextual common-ligatures;
    --inline-element-line-height: 1.4;
    --body-text-opacity-min: 0.9;
    --message-actions-opacity: 0.6;

    --p-margin-bottom: 0.85rem;
    --p-margin-top: 0;
    --p-indent: 0;

    --h1-font-size: 1.25rem;
    --h2-font-size: 1.1rem;
    --h3-font-size: 1rem;
    --heading-font-weight: 600;
    --heading-weight: 600;
    --heading-line-height: 1.3;
    --heading-margin-top: 1.1rem;
    --heading-margin-bottom: 0.5rem;

    --list-padding-left: 1.25rem;
    --list-margin-top: 0.4rem;
    --list-margin-bottom: 0.9rem;
    --list-item-margin: 0.25rem;
    --list-item-p-margin: 0.35rem;
    --nested-list-margin: 0.25rem;

    --strong-font-weight: 600;
    --em-opacity: 0.95;

    --inline-code-font-size: 0.9em;
    --inline-code-padding-y: 0.15rem;
    --inline-code-padding-x: 0.35rem;
    --inline-code-radius: 0.4rem;

    --code-font-size: 0.9em;
    --code-line-height: 1.6;
    --code-padding-y: 0.9rem;
    --code-padding-x: 1rem;
    --code-radius: 0.75rem;
    --code-margin-top: 0.7rem;
    --code-margin-bottom: 1rem;

    --blockquote-border-width: 3px;
    --blockquote-padding-left: 0.9rem;
    --blockquote-margin-top: 0.6rem;
    --blockquote-margin-bottom: 1rem;
    --blockquote-opacity: 0.95;

    --hr-height: 1px;
    --hr-margin-y: 1rem;
    --hr-opacity: 0.12;

    --table-margin-top: 0.75rem;
    --table-margin-bottom: 1rem;
    --table-cell-padding-y: 0.45rem;
    --table-cell-padding-x: 0.75rem;
    --table-border-opacity: 0.12;

    --link-decoration: none;
    --link-hover-decoration: underline;

    --message-padding-y: 1.25rem;
    --message-padding-x: 1.5rem;
    --message-radius: 1.2rem;

    --mobile-font-size: 14.5px;
    --mobile-line-height: 1.6;
    --mobile-message-padding-x: 1.1rem;
    --mobile-message-padding-y: 1rem;
}

/* --- Message Warning --- */
.message-warning {
    display: flex;
    align-items: center;
    justify-content: center;
    bottom: 40px;
    width: 100%;
    position: relative;
    color: var(--text-muted);
    font-family: 'Segoe UI', system-ui, sans-serif;
    font-size: 13px;
    z-index: 1000;
    transform: translateY(50px); /* Moves it slightly downwards */
}

/* message-logo removed */

/* Base Layout */
.message {
    position: relative;
    width: 100%;
    margin: 0;
    padding: 0 0.75rem;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.user-message {
    align-items: flex-end;
}
.ai-message {
    align-items: flex-start;
}

/* --- Headings --- */
h1 {
    margin: 0.3125rem auto -0.9375rem; /* 5px auto -15px */
    color: var(--primary-text-color);
    text-align: center;
    font-size: 1.125rem; /* 18px */
    font-family: 'Montserrat', sans-serif;
}

/* Bubble container */
.text-message-container {
    font-size: var(--chat-font-size);
    line-height: var(--chat-line-height);
    letter-spacing: var(--chat-letter-spacing);
    font-family: 'Inter', 'Söhne', 'Segoe UI', system-ui, -apple-system, sans-serif;
    display: flex;
    flex-direction: column;
    width: min(100%, var(--composer-max-width, 760px));
    max-width: min(100%, var(--composer-max-width, 760px));
    margin: 0;
    -webkit-font-smoothing: var(--font-smoothing-webkit);
    -moz-osx-font-smoothing: var(--font-smoothing-moz);
    text-rendering: var(--text-rendering);
    font-kerning: var(--font-kerning);
    font-feature-settings: var(--font-feature-settings);
    font-variant-ligatures: var(--font-variant-ligatures);
    direction: inherit;
    unicode-bidi: plaintext;
}
@media (max-width: 768px) {
    .text-message-container {
        width: 100%;
        max-width: 100%;
    }
}
.user-message .text-message-container {
    align-items: flex-end;
    width: min(100%, 520px);
    max-width: min(100%, 520px);
    margin-left: auto;
}
.ai-message .text-message-container {
    align-items: stretch;
    margin-right: auto;
}

.message-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    width: min(100%, var(--composer-max-width, 760px));
    max-width: min(100%, var(--composer-max-width, 760px));
    position: relative;
    white-space: var(--wrap-normal);
    overflow-wrap: var(--wrap-overflow);
    word-break: normal;
    hyphens: var(--wrap-hyphenation);
    text-align: var(--text-align);
    text-justify: var(--text-justify);
    user-select: var(--user-select);
    caret-color: transparent;
    -webkit-font-smoothing: var(--font-smoothing-webkit);
    -moz-osx-font-smoothing: var(--font-smoothing-moz);
    text-rendering: var(--text-rendering);
    font-kerning: var(--font-kerning);
    font-feature-settings: var(--font-feature-settings);
    unicode-bidi: plaintext;
    pointer-events: auto;
    font-variant-ligatures: var(--font-variant-ligatures);
}

/* All message content children use natural DOM order */
/* Attachments are rendered after text in the DOM, so they appear after */
.message-content .text-message-container,
.message-content .code-window {
    order: 0;
}

.message-content .message-attachments {
    order: 1;
}

.user-message .message-content {
    align-items: flex-end;
    width: min(100%, 520px);
    max-width: min(100%, 520px);
    margin-left: auto;
}

.ai-message .message-content {
    align-items: stretch;
    margin-right: auto;
}

.message-content > :first-child {
    margin-top: 0;
}

.message-content > :last-child {
    margin-bottom: 0;
}

.message-content * {
    vertical-align: baseline;
}

.message-content code,
.message-content kbd,
.message-content mark {
    line-height: var(--inline-element-line-height);
}

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

.message-content p::before,
.message-content p::after,
.message-content li::before,
.message-content li::after,
.message-content blockquote::before,
.message-content blockquote::after,
.message-content h1::before,
.message-content h1::after,
.message-content h2::before,
.message-content h2::after,
.message-content h3::before,
.message-content h3::after,
.message-content h4::before,
.message-content h4::after,
.message-content h5::before,
.message-content h5::after,
.message-content h6::before,
.message-content h6::after,
.message-content code::before,
.message-content code::after,
.message-content pre::before,
.message-content pre::after,
.message-content table::before,
.message-content table::after,
.message-content td::before,
.message-content td::after,
.message-content th::before,
.message-content th::after {
    content: none;
}

.message-content .image-message,
.message-content .image-preview-card,
.message-content .image-layer {
    width: 100%;
    align-self: stretch;
}

.message-content img:not(.emoji):not(.attachment-thumb) {
    display: block;
    max-width: var(--image-max-width);
    border-radius: var(--image-radius);
    margin: var(--image-margin-y) 0;
}

.message-content emoji,
.message-content img.emoji {
    height: var(--emoji-scale);
    width: var(--emoji-scale);
    vertical-align: var(--emoji-vertical-align);
}

.message-content kbd {
    font-size: var(--kbd-font-size);
    padding: var(--kbd-padding-y) var(--kbd-padding-x);
    border-radius: var(--kbd-radius);
}

.message-content table,
.message-content code {
    font-variant-numeric: var(--numeric-font-variant);
}

.message-content .math,
.message-content .math-block,
.message-content .mathjax-block,
.message-content .katex-display {
    display: block;
    font-size: var(--math-font-size);
    line-height: var(--math-line-height);
    margin: var(--math-margin-y) 0;
}

.message-content:focus,
.text-message:focus {
    outline: var(--focus-outline);
    box-shadow: var(--focus-ring);
}

.text-message {
    background: #222223;
    color: rgba(244, 244, 245, var(--body-text-opacity-min));
    border-radius: var(--message-radius);
    padding: var(--message-padding-y) var(--message-padding-x);
    width: 100%;
    max-width: min(100%, var(--chat-max-line-width));
    font-size: var(--chat-font-size);
    font-size: max(var(--chat-font-size), var(--min-font-size));
    line-height: var(--chat-line-height);
    line-height: max(var(--chat-line-height), var(--min-line-height));
    letter-spacing: var(--chat-letter-spacing);
    transition: background-color var(--transition-normal), transform var(--transition-fast);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 18px 35px rgba(0, 0, 0, 0.45);
    margin: 0;
    text-align: left;
    text-justify: var(--text-justify);
    -webkit-font-smoothing: var(--font-smoothing-webkit);
    -moz-osx-font-smoothing: var(--font-smoothing-moz);
    text-rendering: var(--text-rendering);
    font-kerning: var(--font-kerning);
    font-feature-settings: var(--font-feature-settings);
    font-variant-ligatures: var(--font-variant-ligatures);
    direction: inherit;
    unicode-bidi: plaintext;
}
.text-message:empty {
    display: none;
}
.user-message .text-message {
    background: #303030;
    color: #f7f7f7;
    border-radius: 0.95rem 0.95rem 0.35rem 0.95rem;
    width: auto;
    min-width: 0;
    max-width: min(520px, 92%, var(--chat-max-line-width));
    padding: 0.75rem 1.05rem;
    font-size: 0.9rem;
    line-height: var(--chat-line-height);
    text-align: left;
    letter-spacing: var(--chat-letter-spacing);
    box-shadow: none;
}
.ai-message .text-message {
    background: transparent;
    border-radius: 0;
    border: none;
    box-shadow: none;
    padding: 0;
    text-align: left;
    position: relative;
}

/* Removed: first-of-type rule that made first paragraph bigger/bolder */

.ai-message .text-message h1,
.ai-message .text-message h2,
.ai-message .text-message h3 {
    color: #fdfdfd;
}

.ai-message .text-message h3 + p,
.ai-message .text-message h2 + p {
    margin-top: 0.1rem;
}

.ai-message .text-message ul,
.ai-message .text-message ol {
    margin-top: var(--list-margin-top);
    margin-bottom: var(--list-margin-bottom);
}

.text-message p {
    margin-top: var(--p-margin-top);
    margin-bottom: var(--p-margin-bottom);
    padding: 0;
    font-size: inherit;
    line-height: var(--chat-line-height);
    line-height: max(var(--chat-line-height), var(--min-line-height));
    letter-spacing: var(--chat-letter-spacing);
    text-indent: var(--p-indent);
}
.text-message p:last-child {
    margin-bottom: 0;
}

/* Enhanced Headings - ChatGPT Style */
.text-message h1,
.text-message h2,
.text-message h3,
.text-message h4,
.text-message h5,
.text-message h6 {
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.35;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.text-message h1:first-child,
.text-message h2:first-child,
.text-message h3:first-child {
    margin-top: 0;
}

.text-message h1 {
    font-size: 1.5rem;
    font-weight: 700;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
}

.text-message h2 {
    font-size: 1.25rem;
    font-weight: 650;
    color: #ffffff;
}

.text-message h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
}

.text-message h4 {
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

.text-message h5,
.text-message h6 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.75);
}

/* ═══════════════════════════════════════════════════════════════
   LISTS - Premium Style
   ═══════════════════════════════════════════════════════════════ */

.text-message ul,
.text-message ol {
    padding-left: 1.5rem;
    margin: 0.75rem 0;
    line-height: 1.7;
}

.text-message ul {
    list-style: none;
}

.text-message ul > li {
    position: relative;
    padding-left: 0.25rem;
}

/* Custom bullet points */
.text-message ul > li::before {
    content: '';
    position: absolute;
    left: -1rem;
    top: 0.65em;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
}

.text-message ol {
    list-style: none;
    counter-reset: ol-counter;
}

.text-message ol > li {
    position: relative;
    padding-left: 0.25rem;
    counter-increment: ol-counter;
}

/* Custom numbered list */
.text-message ol > li::before {
    content: counter(ol-counter) '.';
    position: absolute;
    left: -1.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 600;
    font-size: 0.9em;
    font-variant-numeric: tabular-nums;
}

.text-message ul li,
.text-message ol li {
    margin-bottom: 0.35rem;
}

.text-message li > p:first-child {
    margin-top: 0;
}

.text-message li > p:last-child {
    margin-bottom: 0;
}

/* Nested lists */
.text-message ul ul,
.text-message ul ol,
.text-message ol ul,
.text-message ol ol {
    margin: 0.35rem 0;
}

/* Nested bullet style */
.text-message ul ul > li::before {
    width: 4px;
    height: 4px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.text-message ul ul ul > li::before {
    width: 4px;
    height: 1px;
    border-radius: 0;
    background: rgba(255, 255, 255, 0.3);
    border: none;
}

/* ═══════════════════════════════════════════════════════════════
   TASK LISTS - Premium Checkbox Style
   ═══════════════════════════════════════════════════════════════ */

.text-message ul.contains-task-list {
    list-style: none;
    padding-left: 0.25rem;
    margin: 0.75rem 0;
}

.text-message li.task-list-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.35rem 0;
    margin: 0;
    border-radius: 6px;
    transition: background 0.15s ease;
}

.text-message li.task-list-item:hover {
    background: rgba(255, 255, 255, 0.02);
}

.text-message li.task-list-item input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
    margin-top: 0.15rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.text-message li.task-list-item input[type="checkbox"]:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.08);
}

.text-message li.task-list-item input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.text-message li.task-list-item input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Completed task text */
.text-message li.task-list-item.checked,
.text-message li.task-list-item:has(input:checked) {
    opacity: 0.65;
}

.text-message li.task-list-item.checked > label,
.text-message li.task-list-item input:checked ~ *,
.text-message li.task-list-item:has(input:checked) > p,
.text-message li.task-list-item:has(input:checked) > span {
    text-decoration: line-through;
    text-decoration-color: rgba(255, 255, 255, 0.4);
}

/* Nested task lists */
.text-message li.task-list-item ul.contains-task-list {
    margin-top: 0.5rem;
    margin-left: 0.5rem;
    padding-left: 0;
}

.text-message strong {
    font-weight: var(--strong-font-weight);
}

.text-message em {
    opacity: var(--em-opacity);
    font-style: italic;
}

/* Strikethrough */
.text-message del,
.text-message s,
.text-message strike {
    text-decoration: line-through;
    opacity: 0.7;
}

/* Mark/Highlight */
.text-message mark {
    background: rgba(250, 204, 21, 0.3);
    color: inherit;
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

/* Subscript/Superscript */
.text-message sub,
.text-message sup {
    font-size: 0.75em;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

.text-message sup {
    top: -0.5em;
}

.text-message sub {
    bottom: -0.25em;
}

/* Abbreviations */
.text-message abbr[title] {
    text-decoration: underline dotted;
    cursor: help;
    border-bottom: none;
}

/* Definition Lists */
.text-message dl {
    margin: 0.75rem 0;
}

.text-message dt {
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.5rem;
}

.text-message dd {
    margin-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   LINKS - Premium Style
   ═══════════════════════════════════════════════════════════════ */

.text-message a {
    color: #60a5fa;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
    font-weight: 450;
}

.text-message a:hover,
.text-message a:focus-visible {
    color: #93c5fd;
    border-bottom-color: rgba(147, 197, 253, 0.4);
}

.text-message a:active {
    color: #3b82f6;
}

/* External link indicator (optional) */
.text-message a[href^="http"]:not([href*="xelasphere"])::after {
    content: ' ↗';
    font-size: 0.75em;
    opacity: 0.6;
    margin-left: 0.1em;
}

/* ═══════════════════════════════════════════════════════════════
   BLOCKQUOTES & CALLOUTS - Premium Style
   ═══════════════════════════════════════════════════════════════ */

.text-message blockquote {
    position: relative;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
    border-left: 3px solid rgba(255, 255, 255, 0.25);
    border-radius: 0 8px 8px 0;
    padding: 0.875rem 1rem 0.875rem 1.25rem;
    margin: 1rem 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95em;
    line-height: 1.7;
    backdrop-filter: blur(4px);
    transition: all 0.2s ease;
}

.text-message blockquote:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.text-message blockquote > p:first-child {
    margin-top: 0;
}

.text-message blockquote > p:last-child {
    margin-bottom: 0;
}

/* Nested blockquotes */
.text-message blockquote blockquote {
    margin: 0.75rem 0;
    border-left-color: rgba(255, 255, 255, 0.15);
    background: rgba(0, 0, 0, 0.1);
}

/* ⚠️ Warning Callout */
.text-message blockquote:has(> p:first-child > strong:first-child) {
    /* Base for all callouts with bold first line */
}

/* Detect warning emoji or text */
.text-message blockquote > p:first-child:has(strong:first-child) strong:first-child {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

/* Warning style - Yellow/Amber */
.text-message .callout-warning,
.text-message blockquote.warning,
.text-message blockquote[data-callout="warning"] {
    background: linear-gradient(135deg, var(--callout-warning-bg) 0%, rgba(251, 191, 36, 0.05) 100%);
    border-left-color: var(--callout-warning-border);
}

.text-message .callout-warning strong:first-child,
.text-message blockquote.warning strong:first-child {
    color: var(--callout-warning-text);
}

/* Tip style - Green */
.text-message .callout-tip,
.text-message blockquote.tip,
.text-message blockquote[data-callout="tip"] {
    background: linear-gradient(135deg, var(--callout-tip-bg) 0%, rgba(34, 197, 94, 0.05) 100%);
    border-left-color: var(--callout-tip-border);
}

.text-message .callout-tip strong:first-child,
.text-message blockquote.tip strong:first-child {
    color: var(--callout-tip-text);
}

/* Info style - Blue */
.text-message .callout-info,
.text-message blockquote.info,
.text-message blockquote[data-callout="info"] {
    background: linear-gradient(135deg, var(--callout-info-bg) 0%, rgba(59, 130, 246, 0.05) 100%);
    border-left-color: var(--callout-info-border);
}

.text-message .callout-info strong:first-child,
.text-message blockquote.info strong:first-child {
    color: var(--callout-info-text);
}

/* Error/Danger style - Red */
.text-message .callout-error,
.text-message .callout-danger,
.text-message blockquote.error,
.text-message blockquote.danger,
.text-message blockquote[data-callout="error"] {
    background: linear-gradient(135deg, var(--callout-error-bg) 0%, rgba(239, 68, 68, 0.05) 100%);
    border-left-color: var(--callout-error-border);
}

.text-message .callout-error strong:first-child,
.text-message blockquote.error strong:first-child {
    color: var(--callout-error-text);
}

/* Success style - Bright Green */
.text-message .callout-success,
.text-message blockquote.success,
.text-message blockquote[data-callout="success"] {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(16, 185, 129, 0.05) 100%);
    border-left-color: #10b981;
}

.text-message .callout-success strong:first-child,
.text-message blockquote.success strong:first-child {
    color: #34d399;
}

/* Note style - Purple */
.text-message .callout-note,
.text-message blockquote.note,
.text-message blockquote[data-callout="note"] {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-left-color: #8b5cf6;
}

.text-message .callout-note strong:first-child,
.text-message blockquote.note strong:first-child {
    color: #a78bfa;
}

/* ═══════════════════════════════════════════════════════════════
   CODE - Inline & Blocks - Premium Style
   ═══════════════════════════════════════════════════════════════ */

/* Inline code */
.text-message code {
    display: inline;
    background: rgba(110, 118, 129, 0.2);
    color: #e6edf3;
    font-family: 'SF Mono', 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    border-radius: 6px;
    border: none;
    font-weight: 400;
    word-break: break-word;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}

/* Code block container */
.text-message pre {
    position: relative;
    background: #0d1117;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin: 1rem 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.text-message pre::-webkit-scrollbar {
    height: 8px;
}

.text-message pre::-webkit-scrollbar-track {
    background: transparent;
}

.text-message pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.text-message pre::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Code inside pre block */
.text-message pre code {
    display: block;
    background: transparent;
    padding: 0;
    border: none;
    border-radius: 0;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #e6edf3;
    white-space: pre;
    word-break: normal;
    overflow: visible;
    max-height: none;
}

/* ═══════════════════════════════════════════════════════════════
   CODE BLOCK HEADER - Language Label + Copy Button
   ═══════════════════════════════════════════════════════════════ */

.code-block-wrapper {
    position: relative;
    margin: 1rem 0;
    border-radius: 10px;
    overflow: hidden;
    background: #0d1117;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.code-block-wrapper pre {
    margin: 0;
    border: none;
    border-radius: 0;
    background: transparent;
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-block-lang {
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.code-block-copy {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.65rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.code-block-copy:hover {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.2);
}

.code-block-copy.copied {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.3);
    color: #4ade80;
}

.code-block-copy svg {
    width: 14px;
    height: 14px;
}

.code-block-copy .copy-text {
    font-weight: 500;
}

/* Override Prism overflow in messages - pre scrolls, code doesn't */
.text-message pre[class*="language-"] {
    overflow: auto !important;
}

.text-message code[class*="language-"] {
    overflow: visible !important;
    max-height: none !important;
}

.chat-scroll-area {
    overflow-anchor: none;
}

/* ═══════════════════════════════════════════════════════════════
   TABLES - Premium Style
   ═══════════════════════════════════════════════════════════════ */

.text-message table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 1.25rem 0;
    font-size: 0.9em;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.2);
}

.text-message thead {
    background: rgba(255, 255, 255, 0.05);
}

.text-message th,
.text-message td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.text-message th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.03);
}

.text-message td {
    color: rgba(255, 255, 255, 0.9);
}

/* Zebra striping */
.text-message tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

/* Row hover */
.text-message tbody tr {
    transition: background 0.15s ease;
}

.text-message tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Last row - no border */
.text-message tbody tr:last-child td {
    border-bottom: none;
}

/* Alignment support */
.text-message th[align="center"],
.text-message td[align="center"] {
    text-align: center;
}

.text-message th[align="right"],
.text-message td[align="right"] {
    text-align: right;
}

/* First column emphasis */
.text-message td:first-child {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
}

.ai-message.image-generating .message-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.image-loading-spinner {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: rgba(255, 255, 255, 0.9);
    animation: image-spinner 0.75s linear infinite;
}

.image-loading-copy {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.image-loading-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.image-loading-prompt {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

@keyframes image-spinner {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.text-message td {
    background: var(--table-cell-bg);
    color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════════════════
   HORIZONTAL RULE - Scene Breaks - Premium Style
   ═══════════════════════════════════════════════════════════════ */

.text-message hr {
    border: none;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.08) 15%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.08) 85%,
        transparent 100%
    );
    margin: 2rem 0;
    position: relative;
}

/* Decorative center dot */
.text-message hr::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
}

/* Scene break spacing */
.text-message hr + p,
.text-message p + hr {
    margin-top: 1.5rem;
}

/* Attachments inside chat messages */
.message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.message-actions {
    opacity: var(--message-actions-opacity);
}

.attachment-card {
    background: #141414;
    border: 1px solid #252525;
    border-radius: 0.65rem;
    padding: 0.3rem 0.35rem;
    width: clamp(7rem, 17vw, 8.5rem);
    box-shadow: 0 8px 14px rgba(0, 0, 0, 0.22);
    transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.25s ease, transform 0.25s ease;
    opacity: 0;
    animation: attachmentFadeIn 0.35s ease-out forwards;
}

.attachment-card.image-attachment {
    padding: 0;
    width: 100%;
    max-width: 440px;
    background: transparent;
    border: none;
    box-shadow: none;
    margin: 0 auto;
}

.attachment-thumb {
    width: 100%;
    height: 4rem;
    object-fit: cover;
    display: block;
    border-radius: 0.55rem;
    background: #1c1c1c;
    border: 1px solid #202020;
    cursor: zoom-in;
}

.attachment-card.image-attachment .attachment-thumb {
    height: auto;
    max-width: 420px;
    aspect-ratio: 1 / 1;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28), 0 1px 0 rgba(255, 255, 255, 0.05);
    margin: 0 auto;
    opacity: 1;
    filter: none;
    transform: none;
    animation: none;
}

.attachment-caption {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attachment-card.image-attachment .attachment-caption {
    text-align: center;
}

.attachment-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.32);
}

.image-preview-card {
    background: #131313;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 1rem;
    padding: 0.85rem;
    width: min(420px, 100%);
    margin: 0.75rem auto 0;
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.35);
}

.image-preview-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
    padding-bottom: 0.4rem;
}

.image-preview-card__badge i {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.85);
}

.image-preview-card__caption {
    margin-top: 0.5rem;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
}

.image-preview-card .image-layer {
    margin: 0;
    max-width: 100%;
}

/* Animated placeholder for image generation */
.image-placeholder {
    position: relative;
    width: 100%;
    border-radius: 0.55rem;
    padding-bottom: 100%; /* square footprint */
    overflow: hidden;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.04), transparent 45%),
        linear-gradient(135deg, #121212, #0f0f0f 40%, #141414);
    filter: blur(0.2px);
    opacity: 0;
    animation: attachmentFadeIn 0.35s ease-out forwards, placeholderPulse 1.6s ease-in-out infinite;
}

.image-placeholder__shimmer {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(120deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.08) 25%, rgba(255, 255, 255, 0.02) 50%),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.015) 0 2px, transparent 2px 4px);
    filter: blur(10px);
    animation: shimmer 1.4s linear infinite;
    opacity: 0.9;
    mix-blend-mode: screen;
}

.image-placeholder__glyph {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 28px;
    height: 28px;
    margin: -14px 0 0 -14px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.18);
    border-top-color: rgba(255, 255, 255, 0.08);
    animation: glyphSpin 1.6s ease-in-out infinite;
    opacity: 0.7;
}

@keyframes shimmer {
    0% { transform: translateX(-60%); }
    100% { transform: translateX(120%); }
}

@keyframes placeholderPulse {
    0% { filter: blur(0.2px); opacity: 0.92; }
    50% { filter: blur(0.6px); opacity: 0.85; }
    100% { filter: blur(0.2px); opacity: 0.92; }
}

@keyframes glyphSpin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}
@keyframes attachmentFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.65rem;
    border-radius: 999px;
    background: #121212;
    border: 1px solid #262626;
    color: var(--text-primary);
    font-size: 0.85rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.24);
}

/* Responsive Design */
@media (max-width: 768px) {
    .text-message-container {
        width: 95%;
        margin-right: 10px;
        padding: 6px;
    }
    
    .message-warning {
        margin-right: 10px;
        font-size: 12px;
    }

    .text-message {
        font-size: var(--mobile-font-size);
        line-height: var(--mobile-line-height);
        padding: var(--mobile-message-padding-y) var(--mobile-message-padding-x);
    }

    .message-attachments {
        gap: 0.5rem;
    }

    .attachment-card {
        width: 100%;
    }

    .attachment-thumb {
        height: 7.5rem;
    }
    .text-message table {
        -webkit-overflow-scrolling: touch;
    }
}

/* Print Styles */
@media print {
    .text-message-container {
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .message-warning {
        display: none;
    }
}

/* =============================================================================
   Memory Updated Notice
   Subtle inline indicator that appears before AI messages when memory is saved
   ============================================================================= */

.memory-updated-notice {
    display: flex;
    align-items: center;
    gap: 0.4em;
    margin: 0 0 0.5rem;
    padding: 0;
    font-size: 0.7rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.32);
    background: none;
    border: none;
    letter-spacing: 0.01em;
    user-select: none;
    opacity: 0;
    animation: memoryFadeIn 0.3s ease 0.1s forwards;
    transition: opacity 0.5s ease;
}

.memory-updated-notice.fade-out {
    opacity: 0 !important;
}

.memory-notice-icon {
    font-size: 0.85em;
    opacity: 0.8;
}

@keyframes memoryFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Light mode support */
@media (prefers-color-scheme: light) {
    .memory-updated-notice {
        color: rgba(0, 0, 0, 0.3);
    }
}

/* =============================================================================
   File Preview Cards - Modern Thumbnail System
   ============================================================================= */

.file-preview-card {
    display: flex;
    flex-direction: column;
    width: clamp(120px, 18vw, 160px);
    background: linear-gradient(145deg, #1a1a1a 0%, #141414 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    animation: fileCardFadeIn 0.3s ease-out;
}

.file-preview-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
}

.file-preview-card:active {
    transform: translateY(-1px);
}

/* Thumbnail Area */
.file-preview-card__thumb {
    position: relative;
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Image thumbnails */
.file-preview-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Icon-based thumbnails */
.file-preview-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--file-color-from, #2a2a2a) 0%, var(--file-color-to, #1a1a1a) 100%);
}

/* File type colors */
.file-preview-card[data-file-type="pdf"] .file-preview-card__icon {
    --file-color-from: #4a1515;
    --file-color-to: #2a0a0a;
    color: #ef4444;
}

.file-preview-card[data-file-type="doc"] .file-preview-card__icon,
.file-preview-card[data-file-type="docx"] .file-preview-card__icon {
    --file-color-from: #1a3a5c;
    --file-color-to: #0a1a2c;
    color: #3b82f6;
}

.file-preview-card[data-file-type="xls"] .file-preview-card__icon,
.file-preview-card[data-file-type="xlsx"] .file-preview-card__icon,
.file-preview-card[data-file-type="csv"] .file-preview-card__icon {
    --file-color-from: #1a4a2a;
    --file-color-to: #0a2a1a;
    color: #22c55e;
}

.file-preview-card[data-file-type="ppt"] .file-preview-card__icon,
.file-preview-card[data-file-type="pptx"] .file-preview-card__icon {
    --file-color-from: #5c2a1a;
    --file-color-to: #2c1a0a;
    color: #f97316;
}

.file-preview-card[data-file-type="code"] .file-preview-card__icon {
    --file-color-from: #2a1a4a;
    --file-color-to: #1a0a2a;
    color: #a855f7;
}

.file-preview-card[data-file-type="html"] .file-preview-card__icon {
    --file-color-from: #4a2a1a;
    --file-color-to: #2a1a0a;
    color: #f97316;
}

.file-preview-card[data-file-type="css"] .file-preview-card__icon {
    --file-color-from: #1a2a5c;
    --file-color-to: #0a1a3c;
    color: #06b6d4;
}

.file-preview-card[data-file-type="js"] .file-preview-card__icon {
    --file-color-from: #4a4a1a;
    --file-color-to: #2a2a0a;
    color: #eab308;
}

.file-preview-card[data-file-type="json"] .file-preview-card__icon {
    --file-color-from: #3a3a1a;
    --file-color-to: #1a1a0a;
    color: #fbbf24;
}

.file-preview-card[data-file-type="md"] .file-preview-card__icon,
.file-preview-card[data-file-type="txt"] .file-preview-card__icon {
    --file-color-from: #2a2a2a;
    --file-color-to: #1a1a1a;
    color: #9ca3af;
}

.file-preview-card[data-file-type="image"] .file-preview-card__icon {
    --file-color-from: #2a3a4a;
    --file-color-to: #1a2a3a;
    color: #60a5fa;
}

.file-preview-card[data-file-type="zip"] .file-preview-card__icon,
.file-preview-card[data-file-type="archive"] .file-preview-card__icon {
    --file-color-from: #3a2a1a;
    --file-color-to: #2a1a0a;
    color: #d97706;
}

.file-preview-card[data-file-type="audio"] .file-preview-card__icon {
    --file-color-from: #1a3a3a;
    --file-color-to: #0a2a2a;
    color: #14b8a6;
}

.file-preview-card[data-file-type="video"] .file-preview-card__icon {
    --file-color-from: #3a1a3a;
    --file-color-to: #2a0a2a;
    color: #ec4899;
}

/* File info section */
.file-preview-card__info {
    padding: 10px 12px;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.file-preview-card__name {
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.file-preview-card__meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.4);
}

.file-preview-card__ext {
    text-transform: uppercase;
    font-weight: 600;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.file-preview-card__size {
    opacity: 0.7;
}

/* Hover overlay */
.file-preview-card__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.file-preview-card:hover .file-preview-card__overlay {
    opacity: 1;
}

.file-preview-card__overlay-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
}

@keyframes fileCardFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* =============================================================================
   File Preview Modal
   ============================================================================= */

.file-preview-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.file-preview-modal.open {
    opacity: 1;
    visibility: visible;
}

.file-preview-modal__container {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    background: #1a1a1a;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.file-preview-modal.open .file-preview-modal__container {
    transform: scale(1) translateY(0);
}

/* Modal Header */
.file-preview-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.file-preview-modal__title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.file-preview-modal__title-icon {
    font-size: 1.25rem;
}

.file-preview-modal__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-preview-modal__btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.file-preview-modal__btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.file-preview-modal__close {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.file-preview-modal__close:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Modal Content */
.file-preview-modal__content {
    flex: 1;
    overflow: auto;
    padding: 0;
    min-height: 300px;
    max-height: calc(90vh - 140px);
}

/* Image preview */
.file-preview-modal__image {
    display: block;
    max-width: 100%;
    max-height: calc(90vh - 140px);
    margin: 0 auto;
    object-fit: contain;
}

/* Text/Code preview */
.file-preview-modal__code {
    padding: 20px;
    margin: 0;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.85);
    background: #0d0d0d;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-x: auto;
}

/* PDF preview */
.file-preview-modal__pdf {
    width: 100%;
    height: calc(90vh - 140px);
    min-height: 500px;
    border: none;
}

/* Unsupported file placeholder */
.file-preview-modal__unsupported {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

.file-preview-modal__unsupported-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.4;
}

.file-preview-modal__unsupported-text {
    font-size: 1rem;
    margin-bottom: 8px;
}

.file-preview-modal__unsupported-hint {
    font-size: 0.85rem;
    opacity: 0.6;
}

/* Modal Footer */
.file-preview-modal__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
}

.file-preview-modal__footer-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Responsive */
@media (max-width: 768px) {
    .file-preview-card {
        width: calc(50% - 6px);
    }

    .file-preview-modal__container {
        max-width: 95vw;
        max-height: 95vh;
        border-radius: 12px;
    }

    .file-preview-modal__header {
        padding: 12px 16px;
    }

    .file-preview-modal__title {
        font-size: 0.85rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   MICRO-ANIMATIONS - Premium Interactions
   ═══════════════════════════════════════════════════════════════ */

/* Content fade-in animation */
@keyframes contentFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Message appear animation */
.text-message {
    animation: contentFadeIn 0.3s ease-out;
}

/* Heading hover effect */
.text-message h1,
.text-message h2,
.text-message h3 {
    transition: color 0.2s ease;
}

.text-message h1:hover,
.text-message h2:hover,
.text-message h3:hover {
    color: #ffffff;
}

/* List item hover */
.text-message li {
    transition: transform 0.15s ease, background 0.15s ease;
    padding: 0.15rem 0.25rem;
    margin-left: -0.25rem;
    border-radius: 4px;
}

.text-message li:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Link glow on hover */
.text-message a {
    transition: color 0.2s ease, text-shadow 0.2s ease, border-color 0.2s ease;
}

.text-message a:hover {
    text-shadow: 0 0 12px rgba(96, 165, 250, 0.3);
}

/* Code inline hover */
.text-message code:not(pre code) {
    transition: background 0.15s ease, border-color 0.15s ease;
}

.text-message code:not(pre code):hover {
    background: rgba(110, 118, 129, 0.35);
}

/* Blockquote hover lift */
.text-message blockquote {
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.text-message blockquote:hover {
    transform: translateX(4px);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
}

/* Table row highlight */
.text-message tbody tr {
    transition: background 0.15s ease, transform 0.15s ease;
}

.text-message tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Horizontal rule glow */
.text-message hr {
    transition: opacity 0.3s ease;
}

.text-message hr:hover {
    opacity: 1;
}

.text-message hr:hover::after {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

/* Button press effect */
.code-block-copy:active {
    transform: scale(0.95);
}

/* Checkbox bounce */
.text-message li.task-list-item input[type="checkbox"]:checked {
    animation: checkBounce 0.3s ease;
}

@keyframes checkBounce {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* ═══════════════════════════════════════════════════════════════
   MOBILE PREMIUM STYLES - Touch-Friendly
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    /* Larger touch targets */
    .text-message li.task-list-item input[type="checkbox"] {
        width: 24px;
        height: 24px;
        min-width: 24px;
    }

    .text-message li.task-list-item input[type="checkbox"]:checked::after {
        top: 4px;
        left: 8px;
        width: 6px;
        height: 12px;
    }

    /* Bigger code copy button */
    .code-block-copy {
        padding: 0.5rem 0.85rem;
        font-size: 0.8rem;
    }

    /* Touch-friendly links */
    .text-message a {
        padding: 0.15rem 0;
    }

    /* Scrollable tables */
    .text-message table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Swipe indicator for tables */
    .text-message table::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.3));
        pointer-events: none;
        opacity: 0.5;
    }

    /* Blockquote full width */
    .text-message blockquote {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
        padding-left: 1rem;
        border-radius: 0;
    }

    /* Code blocks full bleed */
    .code-block-wrapper {
        margin-left: -1rem;
        margin-right: -1rem;
        border-radius: 0;
    }

    .code-block-header {
        padding: 0.65rem 1rem;
    }

    /* Larger text for readability */
    .text-message {
        font-size: 15px;
        line-height: 1.75;
    }

    /* Bigger headings */
    .text-message h1 {
        font-size: 1.4rem;
    }

    .text-message h2 {
        font-size: 1.2rem;
    }

    .text-message h3 {
        font-size: 1.05rem;
    }

    /* Touch-friendly list items */
    .text-message li {
        padding: 0.35rem 0.25rem;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    /* Disable hover effects on touch */
    @media (hover: none) {
        .text-message li:hover,
        .text-message blockquote:hover,
        .text-message a:hover {
            transform: none;
            background: transparent;
        }
    }
}

/* ═══════════════════════════════════════════════════════════════
   CALLOUT AUTO-STYLING (via JS detection)
   ═══════════════════════════════════════════════════════════════ */

/* Warning callout */
.text-message blockquote.callout-warning,
.text-message blockquote[data-callout="warning"] {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.12) 0%, rgba(251, 191, 36, 0.04) 100%);
    border-left-color: #f59e0b;
}

/* Tip callout */
.text-message blockquote.callout-tip,
.text-message blockquote[data-callout="tip"] {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.12) 0%, rgba(34, 197, 94, 0.04) 100%);
    border-left-color: #22c55e;
}

/* Info callout */
.text-message blockquote.callout-info,
.text-message blockquote[data-callout="info"] {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(59, 130, 246, 0.04) 100%);
    border-left-color: #3b82f6;
}

/* Success callout */
.text-message blockquote.callout-success,
.text-message blockquote[data-callout="success"] {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
    border-left-color: #10b981;
}

/* Error callout */
.text-message blockquote.callout-error,
.text-message blockquote[data-callout="error"] {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.12) 0%, rgba(239, 68, 68, 0.04) 100%);
    border-left-color: #ef4444;
}

/* Note callout */
.text-message blockquote.callout-note,
.text-message blockquote[data-callout="note"] {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(139, 92, 246, 0.04) 100%);
    border-left-color: #8b5cf6;
}