/* Core CSS Variables */
html {
    --transparent: #ffffff00;

    /* Fonts */
    --fonts-sans-main: "Roboto", "Helvetica", sans-serif;
    --fonts-mono-main: "Menlo", "Monaco", "Courier New", monospace;
    --font-size-main: 13px;

    /* Layout dimensions */
    --chat-height: 300px;
    --toolbar-height: 60px;
    --sidebar-width: 280px;

    /* Theme Colors */
    --color-accent: #3a405a;
    --color-bg-main: #ffffff;
    --color-bg-surface: #ffffff;
    --color-bg-elevated: #ffffff;

    /* Role Colors */
    --color-roles-user-main: #3a405a;
    --color-roles-asst-main: #6b5b95;
    --color-roles-syst-main: #8b4049;
    --color-roles-comm-main: #777;
    --color-roles-tool-main: #b5a642;
    --color-roles-para-main: #5b8a72;

    /* Color system */
    --shadow-alpha: 0.15;
    --accent-alpha: 0.1;
    --foreground-axis: #3a405a;
    --background-axis: #ece4b7;
    --heavy-blend-ratio: 30%;
    --light-blend-ratio: 95%;

    /* Interface Colors */
    --color-main-bg: var(--color-bg-surface);
    --color-semantic-bad: #c44536;
    --color-semantic-good: #5b8a72;
    --color-semantic-info: #3a405a;
    --color-semantic-highlight: #d4c875;

    /* Derived Colors */
    --color-text-error-main: var(--color-semantic-bad);
    --color-text-success-main: var(--color-semantic-good);
    --color-scroll-main: var(--foreground-axis);
    --color-main-border-heavy: var(--color-accent);
    --color-sidebar-border: color-mix(
        in srgb,
        var(--color-accent),
        var(--background-axis) 80%
    );
    --color-container-shadow: color-mix(
        in srgb,
        var(--foreground-axis),
        var(--background-axis) 87.5%
    );
    --color-section-inline: color-mix(
        in srgb,
        var(--foreground-axis),
        var(--background-axis) 70%
    );
    --color-text-hard: var(--color-accent);
    --color-text-soft: color-mix(
        in srgb,
        var(--foreground-axis),
        var(--background-axis) 25%
    );
    --color-text-medium: color-mix(
        in srgb,
        var(--foreground-axis),
        var(--background-axis) 40%
    );
    --color-text-light: color-mix(
        in srgb,
        var(--foreground-axis),
        var(--background-axis) 60%
    );
    --color-text-header: var(--color-accent);
    --color-scroll-bg: color-mix(
        in srgb,
        var(--color-scroll-main),
        var(--background-axis) 50%
    );
    --color-main-border-faint: color-mix(
        in srgb,
        var(--color-main-border-heavy),
        var(--background-axis) 20%
    );
    --color-main-border-light: color-mix(
        in srgb,
        var(--color-main-border-heavy),
        var(--background-axis) 75%
    );
    --color-main-bg-light: var(--color-bg-main);
    --color-main-shadow-light: color-mix(
        in srgb,
        var(--color-main-bg),
        var(--background-axis) 56.25%
    );

    /* Filters */
    --background-filter: opacity(30%);
    --section-header-filter: saturate(120%) brightness(100%) contrast(100%);
    --section-header-filter-hover: saturate(150%) brightness(105%);
    --section-content-filter: saturate(100%) opacity(1);

    /* Message styling */
    --message-max-height: 750px;
    --message-item-vpad: 1px;
    --message-item-vpad-strong: 3px;
    --message-item-hpad: 1px;
    --message-codeblock-vmar: 2px;
}

/* Button styling */
html {
    --button-text-color-main: var(--color-text-hard);
    --button-text-bg-main: transparent;
}

/* Base Element Styles */
html {
    font-family: var(--fonts-sans-main);
    font-size: var(--font-size-main);
}

body {
    overflow-x: clip;
    background-color: var(--color-bg-main);
    font-size: var(--font-size-main);
    color: var(--color-text-hard);
    margin: 0;
    padding: 0px;
    padding-left: 10px;
    padding-right: 10px;
}

input {
    font-size: 1em;
    background-color: var(--color-main-bg);
    color: var(--color-text-soft);
    overflow-x: clip;
    width: max-content;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--color-main-border-light);
    background: var(--color-main-bg-light);
    border-radius: 4px;
}

input[type="checkbox"] {
    width: auto;
    margin-right: 5px;
}

textarea {
    font-size: 1em;
    background-color: var(--color-main-bg);
    color: var(--color-text-soft);
    overflow-x: clip;
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--color-main-border-light);
    background: var(--color-main-bg-light);
    border-radius: 4px;
}

button {
    background-color: var(--button-bg-color-main);
    color: var(--button-text-color-main);
    border-color: var(--button-border-color-main, transparent);
    font-size: 1em;
    font-family: var(--fonts-sans-main);
    overflow-x: clip;
    cursor: pointer;
    padding: 4px 8px;
    margin: 8px 4px 14px 4px;
    border: none;
    border-radius: 4px;
    transition: all 0s ease-in-out;
}

button:hover {
    border-color: var(--button-border-color-heavy, transparent);
    background-color: var(--button-bg-color-heavy);
    color: var(--button-text-color-heavy);
}

h1,
h2 {
    color: var(--color-text-header);
    font-weight: 400;
    font-size: 1.2em;
    margin-bottom: 10px;
    margin-top: 0;
}

h3 {
    margin: 0px;
}

p {
    margin: initial;
    padding-top: var(--message-item-vpad, 0px);
    padding-bottom: var(--message-item-vpad, 0px);
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--color-bg-elevated);
    border-right: 1px solid var(--color-main-border-light);
    font-size: 1em;
    z-index: 100;
    transition: transform 0.3s ease-in-out;
    box-shadow: 2px 0 8px rgba(58, 64, 90, 0.08);
}

.sidebar.hidden {
    transform: translateX(-100%);
}

.sidebar ul {
    list-style-type: none;
    margin-top: 8px;
    padding: 0;
    padding-left: 4px;
}

.sidebar li {
    margin-bottom: 6px;
    color: var(--color-text-soft);
    font-size: 0.95em;
}

.sidebar .collapsible-section {
    margin-bottom: 0;
    border-bottom: 1px solid var(--color-main-border-light);
}

.sidebar .collapsible-section.collapsed .section-content {
    display: none;
}

.sidebar .collapsible-section:not(.collapsed) .section-header {
    background: var(--color-bg-main);
}

.sidebar h2 {
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    margin: 0;
    color: var(--color-accent);
}

.sidebar input,
.sidebar select {
    background-color: var(--color-bg-elevated);
    margin-bottom: 0;
    font-size: 0.9em;
    padding: 6px 8px;
    border: 1px solid var(--color-main-border-light);
    border-radius: 4px;
    color: var(--color-text-soft);
}

.sidebar input:focus,
.sidebar select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.sidebar select {
    cursor: pointer;
}

#left-sidebar {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding-bottom: 20px;
}

.section-header {
    padding: 12px 16px;
    border-radius: 0;
    border: none;
    transition: background-color 0.15s ease;
    background: transparent;
}

.section-header:hover {
    background: var(--color-bg-main);
}

.section-content {
    padding: 12px 16px;
    padding-top: 8px;
    border-radius: 0;
    background: var(--color-bg-elevated);
}

.section-content p {
    color: var(--color-text-medium);
    font-size: 0.9em;
    margin-bottom: 12px;
}

.inline-input {
    width: auto;
    border: 1px solid var(--color-main-border-light);
    border-radius: 4px;
    background: var(--color-bg-elevated);
}

.setting-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.setting-row label {
    min-width: 90px;
    font-weight: 500;
    font-size: 0.9em;
    color: var(--color-text-soft);
    flex-shrink: 0;
}

.setting-row select,
.setting-row input {
    flex: 1;
    min-width: 0;
}

.setting-row.vertical {
    flex-direction: column;
    align-items: stretch;
}

.setting-row.vertical label {
    margin-bottom: 6px;
    min-width: auto;
}

.inline-input.small {
    flex: 0 0 45px;
    width: 45px;
    text-align: center;
    padding: 4px;
}

.setting-separator {
    color: var(--color-text-light);
    font-weight: 500;
    flex-shrink: 0;
}

.setting-divider {
    height: 1px;
    background: var(--color-main-border-light);
    margin: 16px 0;
}

.setting-subheader {
    font-size: 0.9em;
    color: var(--color-accent);
    margin-bottom: 12px;
    font-weight: 600;
}

.advanced-toggle {
    margin: 12px 0;
}

.advanced-toggle-btn {
    background: transparent;
    border: none;
    color: var(--color-text-medium);
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 0;
    width: 100%;
    text-align: left;
    transition: color 0.2s;
}

.advanced-toggle-btn:hover {
    color: var(--color-accent);
}

.system-prompt-input {
    font-family: var(--fonts-mono-main);
    font-size: 0.8em;
    min-height: 140px;
    max-height: 300px;
    resize: vertical;
    line-height: 1.5;
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    border: 1px solid var(--color-main-border-light);
    border-radius: 4px;
    background: var(--color-bg-elevated);
    color: var(--color-text-soft);
    overflow-y: auto;
}

/* Message Block Styles */
.message-row {
    display: flex;
    flex-direction: row;
    gap: 4px;
    margin-top: 4px;
}

.message-block {
    --block-leftmost-side-width: 5px;
    --block-inner-side-width: 2px;
    max-height: var(--message-max-height);
    overflow-y: scroll;
    display: inline-flex;
    margin-bottom: 0px;
    border-radius: 0px;
    border: 3px solid var(--color-main-border-heavy);
    border-top: 1px solid var(--color-main-border-heavy);
    border-color: var(--role-color-main);
    border-top-color: transparent;
    border-left-width: 2px;
    border-bottom-width: 1px;
    border-bottom-color: transparent;
    display: flex;
    flex-direction: column;
    position: relative;
    flex: 1 1 auto;
    overflow-x: clip;
    padding: 0px;
    transition: background-color 0.1s linear;
    z-index: 5;
}

.message-block:first-child {
    border-left-width: var(--block-leftmost-side-width);
}

.message-block:not(:last-child) {
    border-right-width: var(--block-inner-side-width);
}

.message-block:not(:first-child) {
    border-left-width: var(--block-inner-side-width);
}

.message-block,
.output {
    --role-color-main: var(--role-color);
    --role-color-heavy: color-mix(
        in srgb,
        var(--role-color),
        var(--foreground-axis) var(--heavy-blend-ratio)
    );
    --role-color-light: color-mix(
        in srgb,
        var(--role-color),
        var(--background-axis) var(--light-blend-ratio)
    );
    --role-color-shadow: rgb(
        from var(--role-color) r g b / var(--shadow-alpha)
    );
    --role-color-accent: rgb(
        from var(--role-color) r g b / var(--accent-alpha)
    );
}

.message-block:has(.message-content[role="user"]) {
    --role-color: var(--color-roles-user-main);
}

.message-block:has(.message-content[role="assistant"]) {
    --role-color: var(--color-roles-asst-main);
}

.message-block:has(.message-content[role="system"]) {
    --role-color: var(--color-roles-syst-main);
}

/* Factoids App Layout */

/* Sidebar toggle container - always visible */
#sidebar-toggle-container {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1001;
    height: 100%;
    pointer-events: none;
}

#sidebar-toggle {
    position: absolute;
    left: var(--sidebar-width);
    top: 10px;
    cursor: pointer;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-main-border-light);
    border-left: none;
    border-radius: 0 6px 6px 0;
    padding: 10px 6px;
    z-index: 1000;
    transition:
        left 0.3s ease-in-out,
        background-color 0.2s ease;
    user-select: none;
    pointer-events: auto;
    font-size: 12px;
    color: var(--color-accent);
    box-shadow: 2px 0 4px rgba(58, 64, 90, 0.1);
}

#sidebar-toggle:hover {
    background: var(--color-bg-main);
}

#middle-column {
    margin-left: var(--sidebar-width);
    padding: 10px;
    width: calc(100% - var(--sidebar-width) - 20px);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition:
        margin-left 0.3s ease-in-out,
        width 0.3s ease-in-out;
}

#middle-column.full-width {
    width: calc(100% - 20px);
    margin-left: 0;
}

/* Chat Section */
#chat-section {
    min-height: var(--chat-height);
    max-height: 50vh;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-main-border-light);
    border-radius: 8px;
    background: var(--color-bg-elevated);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(58, 64, 90, 0.06);
}

#messages {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* System Prompt Preview */
#system-prompt-preview {
    border-bottom: 1px solid var(--color-main-border-light);
    margin: 0;
}

#system-prompt-preview .section-header {
    font-size: 0.85em;
    font-weight: 500;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--color-text-medium);
    background: var(--color-bg-main);
    border: none;
    transition: color 0.15s ease;
}

#system-prompt-preview .section-header:hover {
    color: var(--color-accent);
}

#system-prompt-preview .section-content {
    padding: 0;
}

#system-prompt-preview.collapsed .section-content {
    display: none;
}

#system-prompt-display {
    margin: 0;
    padding: 12px;
    font-family: var(--fonts-mono-main);
    font-size: 0.8em;
    background: color-mix(
        in srgb,
        var(--color-roles-syst-main),
        var(--color-bg-elevated) 92%
    );
    border-left: 3px solid var(--color-roles-syst-main);
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 150px;
    overflow-y: auto;
    color: var(--color-text-soft);
    line-height: 1.5;
}

.message-content {
    padding: 8px 12px;
    min-height: 1.5em;
}

#chat-controls {
    display: flex;
    gap: 10px;
    padding: 12px;
    border-top: 1px solid var(--color-main-border-light);
    background: var(--color-bg-main);
}

#user-input {
    flex: 1;
    min-height: 60px;
    resize: vertical;
    font-family: var(--fonts-sans-main);
    font-size: 1em;
    padding: 10px;
    border: 1px solid var(--color-main-border-light);
    border-radius: 6px;
    background: var(--color-bg-elevated);
    color: var(--color-text-soft);
    margin-bottom: 0;
}

#user-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

#send-button {
    padding: 10px 28px;
    background: var(--color-accent);
    color: var(--color-bg-elevated);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--fonts-sans-main);
    font-weight: 500;
    transition: all 0.2s ease;
    margin: 0;
}

#send-button:hover {
    background: color-mix(in srgb, var(--color-accent), #000 15%);
    transform: translateY(-1px);
}

#send-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Spreadsheet Section */
#spreadsheet-section {
    flex: 1;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-main-border-light);
    border-radius: 8px;
    background: var(--color-bg-elevated);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(58, 64, 90, 0.06);
}

#spreadsheet-toolbar {
    display: flex;
    gap: 10px;
    padding: 12px;
    border-bottom: 1px solid var(--color-main-border-light);
    background: var(--color-bg-main);
}

#spreadsheet-toolbar button {
    padding: 8px 18px;
    background: var(--color-bg-elevated);
    color: var(--color-accent);
    border: 1px solid var(--color-main-border-light);
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--fonts-sans-main);
    font-weight: 500;
    transition: all 0.2s ease;
    margin: 0;
}

#spreadsheet-toolbar button:hover {
    background: var(--color-accent);
    color: var(--color-bg-elevated);
    border-color: var(--color-accent);
}

#factoids-table {
    flex: 1;
    overflow: auto;
    padding: 12px;
}

#factoids-table.hidden {
    display: none;
}

/* Table Styles */
.factoids-table-container table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--fonts-sans-main);
    border-radius: 6px;
    overflow: hidden;
}

.factoids-table-container th {
    background: var(--color-accent);
    color: var(--color-bg-elevated);
    font-weight: 500;
    padding: 10px 14px;
    text-align: center;
    border-bottom: none;
    position: sticky;
    top: 0;
    z-index: 1;
}

.factoids-table-container td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--color-main-border-light);
    color: var(--color-text-soft);
    cursor: pointer;
    user-select: none;
    background: var(--color-bg-elevated);
}

.factoids-table-container td.index-column {
    background: var(--color-bg-main);
    color: var(--color-accent);
    font-weight: 600;
    text-align: center;
    cursor: default;
    width: 50px;
}

.factoids-table-container td.selected {
    background: color-mix(
        in srgb,
        var(--color-accent),
        var(--color-bg-elevated) 85%
    );
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
}

.factoids-table-container tr:hover td:not(.index-column):not(.selected) {
    background: var(--color-bg-main);
}

.factoids-table-container input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    background: var(--color-bg-elevated);
    color: var(--color-text-soft);
    font-family: var(--fonts-sans-main);
    margin-bottom: 0;
}

.factoids-table-container input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px
        color-mix(in srgb, var(--color-accent), transparent 80%);
}

/* Header styling */
.factoids-table-container th:first-child {
    width: 50px;
    text-align: center;
}

/* View Toggle Button Group */
.view-toggle {
    display: flex;
    gap: 0;
    margin-right: auto;
}

.view-toggle button {
    padding: 6px 14px;
    margin: 0;
    border: 1px solid var(--color-main-border-light);
    background: var(--color-bg-elevated);
    color: var(--color-text-soft);
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.15s ease;
}

.view-toggle button:first-child {
    border-radius: 6px 0 0 6px;
}

.view-toggle button:last-child {
    border-radius: 0 6px 6px 0;
    border-left: none;
}

.view-toggle button.active {
    background: var(--color-accent);
    color: var(--color-bg-elevated);
    border-color: var(--color-accent);
}

.view-toggle button:not(.active):hover {
    background: var(--color-bg-main);
}

/* Card View Container */
.factoids-cards-container {
    display: none;
    padding: 20px;
    overflow-x: auto;
}

.factoids-cards-container.active {
    display: block;
}

.factoids-table-container.hidden {
    display: none;
}

/* Card Carousel */
.card-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
}

.card-carousel__viewport {
    flex: 1;
    overflow: hidden;
}

.card-carousel__track {
    display: flex;
    gap: 20px;
    transition: transform 0.3s ease;
}

.card-carousel__arrow {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--color-main-border-light);
    background: var(--color-bg-elevated);
    color: var(--color-accent);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    opacity: 0.7;
    margin: 0;
    padding: 0;
}

.card-carousel__arrow:hover {
    opacity: 1;
    background: var(--color-accent);
    color: var(--color-bg-elevated);
    border-color: var(--color-accent);
}

.card-carousel__arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: var(--color-bg-elevated);
    color: var(--color-text-light);
}

.card-carousel__counter {
    text-align: center;
    margin-top: 12px;
    font-size: 0.85em;
    color: var(--color-text-medium);
}

/* Trivia Card Styling */
.trivia-card {
    flex-shrink: 0;
    width: 260px;
    height: 340px;
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%);
    border-radius: 14px;
    padding: 24px 20px;
    box-shadow:
        0 2px 4px rgba(58, 64, 90, 0.06),
        0 8px 16px rgba(58, 64, 90, 0.08);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--color-main-border-light);
}

.trivia-card:hover {
    transform: translateY(-3px);
    box-shadow:
        0 4px 8px rgba(58, 64, 90, 0.08),
        0 12px 24px rgba(58, 64, 90, 0.12);
}

.trivia-card__title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--color-accent);
    margin: 0 0 14px 0;
    line-height: 1.25;
}

.trivia-card__content {
    font-size: 0.9em;
    line-height: 1.55;
    color: var(--color-text-soft);
    flex-grow: 1;
    overflow-y: auto;
}

.trivia-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 2px dotted var(--color-main-border-light);
}

.trivia-card__category {
    font-size: 0.7em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-medium);
}

.trivia-card__difficulty {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.25em;
    color: white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.trivia-card__difficulty span {
    font-size: 0.5em;
    font-weight: 600;
    margin-top: 1px;
    text-transform: uppercase;
}

.trivia-card__difficulty--1 {
    background: linear-gradient(135deg, #5B8A72 0%, #478066 100%);
}

.trivia-card__difficulty--2 {
    background: linear-gradient(135deg, #6B5B95 0%, #574A7A 100%);
}

.trivia-card__difficulty--3 {
    background: linear-gradient(135deg, #FFB30F 0%, #E09F00 100%);
}

.trivia-card__difficulty--4 {
    background: linear-gradient(135deg, #C44536 0%, #A83A2E 100%);
}

/* Chat Message Card Carousel */
.message-content:has(.message-cards-carousel) {
    overflow: visible;
}

.message-block:has(.message-cards-carousel) {
    overflow: visible;
}

.message-cards-carousel {
    margin-top: 8px;
    padding: 4px 8px;
}

.message-cards-carousel .card-carousel {
    padding: 4px 0;
}

.message-cards-carousel .trivia-card {
    width: 220px;
    height: 280px;
    padding: 18px 16px;
}

.message-cards-carousel .trivia-card__title {
    font-size: 1.1em;
    margin-bottom: 10px;
}

.message-cards-carousel .trivia-card__content {
    font-size: 0.8em;
}

.message-cards-carousel .trivia-card__difficulty {
    width: 40px;
    height: 40px;
    font-size: 1.1em;
}

/* Empty card state */
.trivia-card--empty {
    opacity: 0.5;
    border-style: dashed;
}

.trivia-card--empty .trivia-card__title {
    color: var(--color-text-light);
}

.trivia-card--empty .trivia-card__content {
    color: var(--color-text-light);
    font-style: italic;
}