/* =============================================================================
   Fragile Docs - Expert Mode Toggle Styles
   =============================================================================
   This stylesheet provides styling for the Feynman prose blocks and the
   expert-mode toggle functionality.
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Feynman Prose Blocks - Base Styles
   ----------------------------------------------------------------------------- */

.feynman-prose {
    padding-left: 1.2em;
    margin: 1.2em 0;
}

.feynman-prose p {
    margin-bottom: 0.8em;
}

.feynman-prose p:last-child {
    margin-bottom: 0;
}

/* -----------------------------------------------------------------------------
   Light Mode (default)
   ----------------------------------------------------------------------------- */

html[data-theme="light"] .feynman-prose,
html:not([data-theme]) .feynman-prose {
    border-left: 2px solid rgba(120, 120, 120, 0.25);
    color: #000 !important;
    background: none;
}

html[data-theme="light"] .feynman-prose p,
html[data-theme="light"] .feynman-prose span,
html[data-theme="light"] .feynman-prose em,
html[data-theme="light"] .feynman-prose strong,
html:not([data-theme]) .feynman-prose p,
html:not([data-theme]) .feynman-prose span,
html:not([data-theme]) .feynman-prose em,
html:not([data-theme]) .feynman-prose strong {
    color: #000 !important;
}

/* -----------------------------------------------------------------------------
   Dark Mode
   ----------------------------------------------------------------------------- */

html[data-theme="dark"] .feynman-prose {
    border-left: 2px solid rgba(180, 180, 180, 0.3);
    color: #e0e0e0 !important;
    background: none;
}

html[data-theme="dark"] .feynman-prose p,
html[data-theme="dark"] .feynman-prose span,
html[data-theme="dark"] .feynman-prose em,
html[data-theme="dark"] .feynman-prose strong {
    color: #e0e0e0 !important;
}

/* Fallback for prefers-color-scheme (if theme attribute not set) */
@media (prefers-color-scheme: dark) {
    html:not([data-theme]) .feynman-prose {
        border-left: 2px solid rgba(180, 180, 180, 0.3);
        color: #e0e0e0 !important;
        background: none;
    }

    html:not([data-theme]) .feynman-prose p,
    html:not([data-theme]) .feynman-prose span,
    html:not([data-theme]) .feynman-prose em,
    html:not([data-theme]) .feynman-prose strong {
        color: #e0e0e0 !important;
    }
}

/* -----------------------------------------------------------------------------
   Expert Mode - Hide Feynman Prose and Agent-Added Content
   ----------------------------------------------------------------------------- */

html.expert-mode .feynman-prose,
html.expert-mode .feynman-added {
    display: none;
}

/* -----------------------------------------------------------------------------
   Agent-Added Content Indicator (subtle marker for transparency)
   ----------------------------------------------------------------------------- */

.feynman-added {
    position: relative;
}

.feynman-added::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg,
        rgba(100, 150, 200, 0.3) 0%,
        rgba(100, 150, 200, 0.1) 100%);
    border-radius: 1px;
}

/* -----------------------------------------------------------------------------
   Expert Mode Toggle Switch
   ----------------------------------------------------------------------------- */

/* Container for the whole toggle */
.expert-mode-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-right: 1rem;
    font-size: 0.8rem;
}

/* Labels on either side of switch */
.expert-mode-label {
    color: var(--pst-color-text-muted);
    font-weight: 400;
    transition: color 0.2s ease;
    user-select: none;
}

.expert-mode-label.active {
    color: var(--pst-color-text-base);
    font-weight: 600;
}

/* The switch container */
.expert-mode-switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    cursor: pointer;
}

/* Hide default checkbox */
.expert-mode-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

/* The slider track */
.expert-mode-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    border-radius: 20px;
    transition: background-color 0.2s ease;
}

/* The slider knob */
.expert-mode-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* Checked state - move knob right */
.expert-mode-switch input:checked + .expert-mode-slider {
    background-color: var(--pst-color-primary, #0969da);
}

.expert-mode-switch input:checked + .expert-mode-slider:before {
    transform: translateX(16px);
}

/* Focus state for accessibility */
.expert-mode-switch input:focus + .expert-mode-slider {
    box-shadow: 0 0 0 2px rgba(9, 105, 218, 0.3);
}

/* Dark mode adjustments */
html[data-theme="dark"] .expert-mode-slider {
    background-color: #555;
}

html[data-theme="dark"] .expert-mode-switch input:checked + .expert-mode-slider {
    background-color: #58a6ff;
}

/* -----------------------------------------------------------------------------
   Prompt Download Menu
   ----------------------------------------------------------------------------- */

.prompt-download-container {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: 0.75rem;
}

.prompt-download-container-fixed {
    position: fixed;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 2000;
}

.prompt-download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--pst-color-border, #d0d7de);
    border-radius: 999px;
    background: var(--pst-color-surface, #fff);
    color: var(--pst-color-text-base, #1f2328);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.prompt-download-button:hover {
    border-color: var(--pst-color-primary, #0969da);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.12);
    transform: translateY(-1px);
}

.prompt-download-button:focus-visible {
    outline: 2px solid rgba(9, 105, 218, 0.35);
    outline-offset: 2px;
}

.prompt-download-menu {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 0;
    min-width: 240px;
    padding: 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--pst-color-border, #d0d7de);
    background: var(--pst-color-surface, #fff);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 1000;
}

.prompt-download-container.is-open .prompt-download-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.prompt-download-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--pst-color-text-base, #1f2328);
    margin-bottom: 0.6rem;
}

.prompt-download-row {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 0.6rem;
}

.prompt-download-row:last-child {
    margin-bottom: 0;
}

.prompt-download-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--pst-color-text-muted, #57606a);
}

.prompt-download-select {
    width: 100%;
    border: 1px solid var(--pst-color-border, #d0d7de);
    border-radius: 8px;
    padding: 0.35rem 0.5rem;
    background: var(--pst-color-surface, #fff);
    color: var(--pst-color-text-base, #1f2328);
    font-size: 0.78rem;
}

.prompt-download-toggle {
    display: flex;
    gap: 0.4rem;
}

.prompt-download-toggle-button {
    flex: 1;
    border: 1px solid var(--pst-color-border, #d0d7de);
    border-radius: 8px;
    padding: 0.3rem 0.4rem;
    background: var(--pst-color-surface, #fff);
    color: var(--pst-color-text-base, #1f2328);
    font-size: 0.72rem;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.prompt-download-toggle-button.is-active {
    border-color: var(--pst-color-primary, #0969da);
    background: rgba(9, 105, 218, 0.08);
    color: var(--pst-color-primary, #0969da);
}

.prompt-download-formats {
    display: flex;
    gap: 0.4rem;
}

.prompt-download-link {
    flex: 1;
    text-align: center;
    text-decoration: none;
    border: 1px solid var(--pst-color-border, #d0d7de);
    border-radius: 8px;
    padding: 0.35rem 0.45rem;
    color: var(--pst-color-text-base, #1f2328);
    font-size: 0.74rem;
    font-weight: 500;
    background: var(--pst-color-surface, #fff);
    transition: border-color 0.15s ease, background 0.15s ease;
}

.prompt-download-link:hover {
    border-color: var(--pst-color-primary, #0969da);
    background: rgba(9, 105, 218, 0.08);
    color: var(--pst-color-primary, #0969da);
}

@media (max-width: 700px) {
    html,
    body {
        /* The theme parks both sidebar drawers just outside the viewport. */
        overflow-x: clip;
    }

    .prompt-download-button span {
        display: none;
    }

    .prompt-download-button {
        padding: 0.35rem 0.5rem;
    }

    /* Keep wide examples and parameter tables inside the mobile article. */
    .bd-article table.table {
        display: block;
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
    }

    .bd-article :not(pre) > code.docutils.literal {
        overflow-wrap: anywhere;
        word-break: break-word;
    }
}

/* Fallback fixed position if header insertion fails */
.expert-mode-container-fixed {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1000;
    background: var(--pst-color-background, white);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--pst-color-border, #ddd);
}

/* -----------------------------------------------------------------------------
   Volume Headers - Multi-Book Navigation Styling
   ----------------------------------------------------------------------------- */

/* Volume header captions - make them visually distinct */
.bd-sidebar-primary .caption-text.volume-header {
    font-size: 0.9em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.75rem 0 0.5rem 0;
    margin-top: 1.5rem;
    border-top: 2px solid var(--pst-color-border, #e0e0e0);
    color: var(--pst-color-primary, #0969da);
}

/* First volume header shouldn't have top margin */
.bd-sidebar-primary .nav-item:first-child .caption-text.volume-header {
    margin-top: 0;
    border-top: none;
}

/* Light mode volume header colors */
html[data-theme="light"] .bd-sidebar-primary .caption-text.volume-header,
html:not([data-theme]) .bd-sidebar-primary .caption-text.volume-header {
    color: #0550ae;
    border-top-color: #d0d7de;
}

/* Dark mode volume header colors */
html[data-theme="dark"] .bd-sidebar-primary .caption-text.volume-header {
    color: #58a6ff;
    border-top-color: #30363d;
}

/* Hide empty chapter lists under volume headers */
.bd-sidebar-primary .volume-header-section > ul.nav:empty,
.bd-sidebar-primary .volume-header-section > ul.nav:not(:has(li)) {
    display: none;
}

/* Regular part captions - slightly smaller to differentiate */
.bd-sidebar-primary .caption-text:not(.volume-header) {
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.4rem 0;
    margin-top: 0.75rem;
    color: var(--pst-color-text-muted, #57606a);
}