/* ════════════════════════════════════════════════════════════════════
   Afterwords — "Book" theme
   Activated by data-theme="book" on the <html> element (set from the
   awTheme cookie in App.razor). Every rule below is scoped to that
   attribute except the base rules that hide book-only elements in
   other themes.
   ════════════════════════════════════════════════════════════════════ */

/* ── Book-only elements are hidden unless the book theme is active ── */
.book-tabs {
    display: none;
}

.book-cover-overlay {
    display: none;
}

/* ── Tokens ── */
[data-theme="book"] {
    --aw-primary: #6B4226;
    --aw-primary-light: #855433;
    --aw-secondary: #9C7A50;
    --aw-tertiary: #C9B08A;
    --aw-bg: #E9E0CC;
    --aw-surface: #FBF6E9;
    --aw-text: #33281A;
    --aw-text-secondary: #5C4E38;
    --aw-border: #D9CBAA;
    --aw-radius: 6px;
    --aw-shadow-sm: 0 1px 3px rgba(59, 47, 30, 0.10);
    --aw-shadow-md: 0 4px 12px rgba(59, 47, 30, 0.14);
    --aw-shadow-hover: 0 8px 24px rgba(59, 47, 30, 0.18);
    --aw-font: "Literata", Georgia, "Times New Roman", serif;
    --aw-display-font: "Playfair Display", Georgia, serif;
    --book-paper: #FBF6E9;
    --book-paper-deep: #F3ECD6;
    --book-paper-edge: #CFC19C;
    --book-leather: #4E3421;
    --book-leather-deep: #3A2617;
    --book-gold: #B08D3E;
    --book-gold-soft: #C9AC6A;
    --book-gold-text: #8A6420;
    --control-corner-radius: 3;
}

[data-theme="book"] body {
    font-size: 1.1rem;
    background:
        radial-gradient(ellipse at 50% -10%, rgba(255, 250, 235, 0.55), transparent 60%),
        radial-gradient(ellipse at 50% 115%, rgba(59, 47, 30, 0.18), transparent 55%),
        var(--aw-bg);
}

/* ── Typography ── */
[data-theme="book"] h1,
[data-theme="book"] h2,
[data-theme="book"] h3,
[data-theme="book"] .dashboard-title,
[data-theme="book"] .hero-title {
    font-family: var(--aw-display-font);
    font-weight: 600;
    letter-spacing: 0.2px;
}

[data-theme="book"] h1 {
    text-align: center;
    font-size: 1.9rem;
}

/* ── The content area becomes the open page ── */
[data-theme="book"] .body-content {
    justify-content: center;
}

[data-theme="book"] .content {
    position: relative;
    max-width: 880px;
    margin: 1.75rem 1.5rem 3rem 1rem;
    padding: 2.5rem 3rem 3rem;
    background:
        linear-gradient(105deg, rgba(59, 47, 30, 0.07), transparent 46px),
        linear-gradient(180deg, var(--book-paper) 0%, var(--book-paper-deep) 100%);
    border: 1px solid var(--book-paper-edge);
    border-radius: 2px 8px 8px 2px;
    /* Layered offsets suggest the stack of pages beneath the open one */
    box-shadow:
        2px 2px 0 -1px var(--book-paper-deep), 3px 3px 0 -1px var(--book-paper-edge),
        5px 5px 0 -1px var(--book-paper-deep), 6px 6px 0 -1px var(--book-paper-edge),
        8px 8px 0 -1px var(--book-paper-deep), 9px 9px 0 -1px var(--book-paper-edge),
        14px 14px 28px rgba(59, 47, 30, 0.30);
}

/* Spine shadow down the left edge of the page */
[data-theme="book"] .content::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(90deg, rgba(59, 47, 30, 0.10), transparent 34px);
}

/* ── Header and navigation chrome ── */
[data-theme="book"] fluent-header {
    border-bottom: 3px solid var(--book-gold);
}

[data-theme="book"] .category-back-link {
    font-size: 0.9rem;
}

/* ── Left menu: the book's leather spine ── */
[data-theme="book"] .navmenu {
    background: linear-gradient(165deg, var(--book-leather) 0%, var(--book-leather-deep) 100%);
    border-right: 3px solid var(--book-gold);
    box-shadow: inset -12px 0 24px -14px rgba(0, 0, 0, 0.55);
    align-self: stretch;
}

[data-theme="book"] nav.sitenav {
    height: 100%;
    padding-top: 10px;

    /* Fluent design tokens the nav components read for text, icons and
       hover/active states - remapped to the leather-and-gold palette */
    --neutral-foreground-rest: #E9E0CC;
    --neutral-foreground-hover: #FBF6E9;
    --neutral-foreground-active: #FBF6E9;
    --accent-fill-rest: var(--book-gold-soft);
    --accent-fill-hover: var(--book-gold);
    --accent-foreground-rest: var(--book-gold-soft);
    --neutral-fill-stealth-rest: transparent;
    --neutral-fill-stealth-hover: rgba(201, 172, 106, 0.12);
    --neutral-fill-stealth-active: rgba(201, 172, 106, 0.18);
    --neutral-fill-stealth-recessed: rgba(201, 172, 106, 0.18);
}

[data-theme="book"] .fluent-nav-menu {
    background: transparent;
}

/* Explicit text colours: the nav links inherit the page ink colour rather
   than reading the remapped tokens, which is unreadable on the leather */
[data-theme="book"] nav.sitenav .fluent-nav-link,
[data-theme="book"] nav.sitenav .fluent-nav-link .fluent-nav-text,
[data-theme="book"] nav.sitenav a {
    color: #F3ECD6;
}

[data-theme="book"] nav.sitenav .fluent-nav-link:hover .fluent-nav-text,
[data-theme="book"] nav.sitenav a.active .fluent-nav-text {
    color: #FFFDF5;
}

[data-theme="book"] nav.sitenav .fluent-nav-link.disabled,
[data-theme="book"] nav.sitenav .fluent-nav-link.disabled .fluent-nav-text {
    color: rgba(233, 224, 204, 0.45);
}

[data-theme="book"] .fluent-nav-text {
    font-family: var(--aw-font);
    letter-spacing: 0.3px;
}

/* Mobile hamburger sits on the leather header */
[data-theme="book"] .navbar-toggler-btn {
    color: #FBF6E9;
}

/* ── Question page: a single page of the book ── */
[data-theme="book"] .question-page {
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
    gap: 16px;
}

[data-theme="book"] .question-title {
    font-family: var(--aw-display-font);
    font-size: 1.65rem;
    text-align: center;
    margin-top: 8px;
}

[data-theme="book"] .question-title::after {
    content: "\2766"; /* ❦ aldus leaf */
    display: block;
    font-size: 1.05rem;
    color: var(--book-gold);
    margin-top: 10px;
    line-height: 1;
}

[data-theme="book"] .question-description {
    text-align: center;
    font-size: 1.02rem;
    line-height: 1.6;
    margin: 0 auto 8px;
}

/* Writing area sits on the paper rather than in a boxed widget.
   width: 100% matters here: the auto cross-axis margins inside the flex
   .question-page would otherwise shrink these blocks to the textarea's
   intrinsic (~20 col) width instead of the full page width. */
[data-theme="book"] .text-record-wrapper,
[data-theme="book"] .audio-section-collapsible,
[data-theme="book"] .textarea-wrapper {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

[data-theme="book"] .textarea-wrapper textarea {
    font-family: var(--aw-font);
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--aw-text);
    background: rgba(255, 253, 244, 0.55);
    border: 1px solid var(--aw-border);
    border-radius: 3px;
    padding: 14px 16px 30px;
}

[data-theme="book"] .textarea-wrapper textarea:focus {
    outline: none;
    border-color: var(--book-gold);
    box-shadow: 0 0 0 1px var(--book-gold-soft);
}

[data-theme="book"] .text-readonly {
    font-size: 1.125rem;
    line-height: 1.75;
    background: transparent;
    border: none;
    border-top: 1px solid var(--aw-border);
    border-radius: 0;
    padding: 18px 6px 6px;
}

/* Drop cap on saved answers when read as a book (skip the "no answer" placeholder) */
[data-theme="book"] .text-readonly:not(:has(.text-readonly-empty))::first-letter {
    font-family: var(--aw-display-font);
    font-size: 2.9em;
    float: left;
    line-height: 0.85;
    padding: 2px 8px 0 0;
    color: var(--aw-primary);
}

/* ── Wizard bar: page footer with "Page x of y" ── */
[data-theme="book"] .wizard-bar {
    margin: 12px auto 0;
    padding-top: 18px;
    border-top: 1px solid var(--aw-border);
}

[data-theme="book"] .wizard-counter {
    font-size: 0.9rem;
}

[data-theme="book"] .wizard-counter::before {
    content: "Page ";
}

[data-theme="book"] .wizard-progress-track {
    height: 4px;
    background: var(--book-paper-edge);
}

[data-theme="book"] .wizard-progress-fill {
    background: var(--book-gold);
}

/* ── Page-turn animation (class applied to the page sheet by bookTheme.js) ── */
[data-theme="book"] .book-page-turn--next {
    transform-origin: left center;
    animation: aw-book-turn-next 0.5s ease-out both;
}

[data-theme="book"] .book-page-turn--prev {
    transform-origin: right center;
    animation: aw-book-turn-prev 0.5s ease-out both;
}

@keyframes aw-book-turn-next {
    from {
        transform: perspective(1600px) rotateY(-24deg);
        opacity: 0.3;
    }

    to {
        transform: perspective(1600px) rotateY(0deg);
        opacity: 1;
    }
}

@keyframes aw-book-turn-prev {
    from {
        transform: perspective(1600px) rotateY(24deg);
        opacity: 0.3;
    }

    to {
        transform: perspective(1600px) rotateY(0deg);
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    [data-theme="book"] .book-page-turn--next,
    [data-theme="book"] .book-page-turn--prev,
    [data-theme="book"] .book-cover-overlay--opening .book-cover {
        animation: none;
    }
}

/* ── Bookmark tabs: category markers on the page edge ── */
[data-theme="book"] .book-tabs {
    display: flex;
    flex-direction: column;
    gap: 7px;
    position: absolute;
    top: 92px;
    right: -10px;
    z-index: 5;
    align-items: flex-end;
    counter-reset: aw-tab;
}

[data-theme="book"] .book-tab {
    display: block;
    white-space: nowrap;
    counter-increment: aw-tab;
    padding: 5px 12px 5px 14px;
    border-radius: 3px 5px 5px 3px;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.4px;
    color: #FDF9EE;
    text-decoration: none;
    box-shadow: 1px 2px 4px rgba(59, 47, 30, 0.35);
    transition: transform 0.2s ease;
}

/* Collapsed state shows the chapter numeral (same upper-roman numbering as
   the table of contents); the title reveals on hover */
[data-theme="book"] .book-tab::before {
    content: counter(aw-tab, upper-roman);
    display: inline-block;
    min-width: 26px;
    text-align: center;
    vertical-align: bottom;
    font-family: var(--aw-display-font);
    font-weight: 600;
    letter-spacing: 1px;
}

[data-theme="book"] .book-tab__label {
    display: inline-block;
    box-sizing: border-box;
    max-width: 0;
    padding-left: 8px;
    opacity: 0;
    overflow: hidden;
    vertical-align: bottom;
    transition: max-width 0.25s ease, opacity 0.2s ease;
}

[data-theme="book"] .book-tab:hover .book-tab__label {
    max-width: 200px;
    opacity: 1;
}

/* Ribbon colours cycle like a set of bookmarks */
[data-theme="book"] .book-tab:nth-of-type(5n+1) { background: #7D5A3C; }
[data-theme="book"] .book-tab:nth-of-type(5n+2) { background: #5F6E4E; }
[data-theme="book"] .book-tab:nth-of-type(5n+3) { background: #8A4A3B; }
[data-theme="book"] .book-tab:nth-of-type(5n+4) { background: #4E5D6E; }
[data-theme="book"] .book-tab:nth-of-type(5n+5) { background: #93763B; }

[data-theme="book"] .book-tab--current {
    transform: translateX(6px);
    box-shadow: 2px 3px 6px rgba(59, 47, 30, 0.45);
    font-weight: 600;
}

/* ── Categories page: table of contents ── */
[data-theme="book"] .choosecategory-description {
    text-align: center;
    margin: 0 auto;
}

[data-theme="book"] .questionset-author-note {
    text-align: center;
    margin: 0 auto 8px;
    font-style: italic;
    color: var(--book-gold-text);
}

[data-theme="book"] .grid-container {
    display: block;
    max-width: 620px;
    margin: 0 auto;
    counter-reset: aw-chapter;
    padding: 4px 0;
}

[data-theme="book"] .grid-container > a {
    display: block;
    counter-increment: aw-chapter;
}

[data-theme="book"] .category-card {
    background: transparent;
    border: none;
    border-bottom: 1px dotted var(--book-paper-edge);
    border-radius: 0;
    box-shadow: none;
    text-align: left;
    padding: 16px 10px 18px;
}

[data-theme="book"] .category-card:hover {
    transform: none;
    box-shadow: none;
    background: rgba(176, 141, 62, 0.08);
}

[data-theme="book"] .category-card img {
    display: none;
}

[data-theme="book"] .category-title {
    font-family: var(--aw-display-font);
    font-size: 1.25rem;
    margin: 2px 0 6px;
}

[data-theme="book"] .category-title::before {
    content: "Chapter " counter(aw-chapter, upper-roman);
    display: block;
    font-family: var(--aw-font);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--book-gold-text);
    margin-bottom: 2px;
}

[data-theme="book"] .category-description {
    font-size: 1rem;
    line-height: 1.55;
}

[data-theme="book"] .progress-container {
    width: 45%;
    height: 5px;
    margin: 12px 0 0;
    background: var(--book-paper-edge);
    border-radius: 3px;
}

[data-theme="book"] .progress-bar {
    background: var(--book-gold);
    font-size: 0;
    color: transparent;
}

[data-theme="book"] .category-card-footer {
    margin-top: 12px;
}

[data-theme="book"] .category-card-footer .progress-container {
    flex: 0 1 140px;
    height: 5px;
    margin: 0;
}

[data-theme="book"] .category-progress-caption {
    font-size: 0.78rem;
    color: var(--book-gold-text);
}

[data-theme="book"] .category-open-cue {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--book-gold-text);
}

[data-theme="book"] .category-card:hover .category-open-cue {
    color: var(--book-leather);
    text-decoration: none;
}

/* ── Home page ── */
[data-theme="book"] .hero-section {
    text-align: center;
    padding-top: 56px;
}

[data-theme="book"] .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
}

[data-theme="book"] .hero-cta-row {
    justify-content: center;
}

[data-theme="book"] .dashboard-title {
    text-align: center;
}

[data-theme="book"] .dashboard-subtitle {
    text-align: center;
}

/* Dashboard cards stay plain — the books live on the shelf, not the desk */
[data-theme="book"] .dashboard-grid {
    max-width: 760px;
    margin: 0 auto;
}

[data-theme="book"] .dashboard-card {
    background: rgba(255, 253, 244, 0.6);
    border: 1px solid var(--aw-border);
    border-radius: 4px;
}

[data-theme="book"] .dashboard-card:hover {
    border-color: var(--book-gold-soft);
    transform: translateY(-3px);
}

/* ── Answer Questions page: the bookshelf ── */
[data-theme="book"] .questionset-intro {
    text-align: center;
}

[data-theme="book"] .bookshelf {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-end;
    gap: 28px;
    padding: 28px 12px 0;
    max-width: 720px;
    margin: 0 auto;
}

[data-theme="book"] .bookshelf-book {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    width: 190px;
    height: 270px;
    padding: 30px 20px;
    text-align: center;
    text-decoration: none;
    background:
        linear-gradient(115deg, rgba(255, 235, 190, 0.10), transparent 40%),
        linear-gradient(160deg, #6A4A2E 0%, var(--book-leather) 50%, var(--book-leather-deep) 100%);
    border-radius: 3px 10px 10px 3px;
    box-shadow:
        inset 9px 0 14px rgba(0, 0, 0, 0.35),
        -1px 0 0 1px #2B1D10,
        6px 10px 22px rgba(59, 47, 30, 0.40);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

[data-theme="book"] .bookshelf-book--green {
    background:
        linear-gradient(115deg, rgba(255, 235, 190, 0.10), transparent 40%),
        linear-gradient(160deg, #5C6B4B 0%, #47543A 50%, #37422C 100%);
}

[data-theme="book"] .bookshelf-book--blue {
    background:
        linear-gradient(115deg, rgba(255, 235, 190, 0.10), transparent 40%),
        linear-gradient(160deg, #55637A 0%, #414E63 50%, #333D4E 100%);
}

/* Gold frame tooled into each cover */
[data-theme="book"] .bookshelf-book::before {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid var(--book-gold);
    border-radius: 3px;
    pointer-events: none;
    opacity: 0.75;
}

[data-theme="book"] .bookshelf-book:hover {
    transform: translateY(-8px);
    box-shadow:
        inset 9px 0 14px rgba(0, 0, 0, 0.35),
        -1px 0 0 1px #2B1D10,
        8px 16px 30px rgba(59, 47, 30, 0.45);
}

[data-theme="book"] .bookshelf-book__title {
    font-family: var(--aw-display-font);
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.35;
    color: #E9C87A;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
}

[data-theme="book"] .bookshelf-book__hint {
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(243, 231, 200, 0.75);
}

[data-theme="book"] .bookshelf-book--disabled {
    filter: grayscale(0.55);
    opacity: 0.6;
    cursor: not-allowed;
}

[data-theme="book"] .bookshelf-shelf {
    max-width: 760px;
    height: 14px;
    margin: 0 auto;
    background: linear-gradient(180deg, #7A5A38 0%, #5A3F24 55%, #43301B 100%);
    border-radius: 2px;
    box-shadow: 0 8px 14px rgba(59, 47, 30, 0.35);
}

/* Ghost slots — the empty spaces at the end of the shelf inviting the
   next book (browse the library / write your own) */
[data-theme="book"] .bookshelf-book--ghost {
    gap: 8px;
    background: rgba(78, 52, 33, 0.05);
    border: 2px dashed var(--book-gold-soft);
    box-shadow: none;
}

[data-theme="book"] .bookshelf-book--ghost::before {
    content: none;
}

[data-theme="book"] .bookshelf-book--ghost:hover {
    transform: translateY(-8px);
    background: rgba(78, 52, 33, 0.10);
    border-color: var(--book-gold);
    box-shadow: 6px 10px 22px rgba(59, 47, 30, 0.20);
}

[data-theme="book"] .bookshelf-book--ghost .bookshelf-book__title {
    color: var(--book-gold-text);
    text-shadow: none;
}

[data-theme="book"] .bookshelf-book--ghost .bookshelf-book__hint {
    color: var(--book-paper-edge);
}

[data-theme="book"] .bookshelf-book__ghost-plus {
    font-family: var(--aw-display-font);
    font-size: 2.2rem;
    line-height: 1;
    color: var(--book-gold-soft);
}

/* ── Chapter title page ── */
[data-theme="book"] .chapter-page {
    position: static;
    display: flex;
    flex-direction: column;
    gap: 18px;
    max-width: 640px;
    margin: 0 auto;
    width: 100%;
}

[data-theme="book"] .chapter-heading {
    text-align: center;
    padding-top: 40px;
}

[data-theme="book"] .chapter-eyebrow {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--book-gold-text);
    margin-bottom: 10px;
}

[data-theme="book"] .chapter-title {
    font-family: var(--aw-display-font);
    font-size: 2.1rem;
    margin: 0 0 14px;
    text-align: center;
}

[data-theme="book"] .chapter-ornament {
    display: block;
    color: var(--book-gold);
    font-size: 1.15rem;
    line-height: 1;
    margin-bottom: 16px;
}

[data-theme="book"] .chapter-description {
    font-size: 1.05rem;
    line-height: 1.65;
    max-width: 520px;
    margin: 0 auto;
    text-align: center;
}

[data-theme="book"] .chapter-begin {
    text-align: center;
    padding: 10px 0 18px;
}

[data-theme="book"] .chapter-question-list {
    border-top: 1px solid var(--aw-border);
    padding-top: 18px;
}

[data-theme="book"] .chapter-question-list__heading {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--book-gold-text);
    text-align: center;
    margin: 0 0 10px;
    font-family: var(--aw-font);
}

[data-theme="book"] .chapter-question-list ol {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: aw-chapter-question;
}

[data-theme="book"] .chapter-question-list li {
    counter-increment: aw-chapter-question;
}

[data-theme="book"] .chapter-question-link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 6px;
    text-decoration: none;
    color: var(--aw-text);
    border-bottom: 1px dotted var(--book-paper-edge);
}

[data-theme="book"] .chapter-question-link::before {
    content: counter(aw-chapter-question) ".";
    flex-shrink: 0;
    min-width: 1.6em;
    color: var(--aw-text-secondary);
}

[data-theme="book"] .chapter-question-link:hover {
    background: rgba(176, 141, 62, 0.08);
}

[data-theme="book"] .chapter-question-title {
    flex: 1;
}

[data-theme="book"] .chapter-question-answered {
    flex-shrink: 0;
    color: var(--book-gold-text);
    font-weight: 700;
}

/* ── Book cover overlay (home page, shown once per session) ── */
[data-theme="book"] .book-cover-overlay--visible {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 10000;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, #5A4630 0%, #37281A 60%, #241a10 100%);
    cursor: pointer;
    perspective: 1800px;
    animation: aw-cover-fade-in 0.45s ease both;
}

@keyframes aw-cover-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

[data-theme="book"] .book-cover {
    position: relative;
    width: min(400px, 84vw);
    aspect-ratio: 5 / 7;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(115deg, rgba(255, 235, 190, 0.10), transparent 40%),
        linear-gradient(160deg, #6A4A2E 0%, var(--book-leather) 50%, var(--book-leather-deep) 100%);
    border-radius: 4px 14px 14px 4px;
    box-shadow:
        inset 14px 0 24px rgba(0, 0, 0, 0.35),
        -2px 0 0 2px #2B1D10,
        0 24px 60px rgba(0, 0, 0, 0.55);
    transform-origin: left center;
}

/* Gold frame tooled into the cover */
[data-theme="book"] .book-cover__frame {
    position: absolute;
    inset: 22px;
    border: 2px solid var(--book-gold);
    outline: 1px solid rgba(176, 141, 62, 0.45);
    outline-offset: 5px;
    border-radius: 3px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 20px;
    text-align: center;
}

[data-theme="book"] .book-cover__eyebrow {
    font-family: var(--aw-font);
    font-size: 0.85rem;
    font-style: italic;
    letter-spacing: 2px;
    color: var(--book-gold-soft);
}

[data-theme="book"] .book-cover__title {
    font-family: var(--aw-display-font);
    font-size: 2.6rem;
    font-weight: 700;
    color: #E9C87A;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.55), 0 0 18px rgba(233, 200, 122, 0.25);
    line-height: 1.1;
}

[data-theme="book"] .book-cover__ornament {
    color: var(--book-gold);
    font-size: 1.3rem;
    line-height: 1;
}

[data-theme="book"] .book-cover__subtitle {
    font-family: var(--aw-font);
    font-style: italic;
    font-size: 0.98rem;
    color: rgba(243, 231, 200, 0.8);
    max-width: 240px;
}

[data-theme="book"] .book-cover__hint {
    position: absolute;
    bottom: -44px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: var(--aw-font);
    font-style: italic;
    color: rgba(243, 231, 200, 0.65);
    animation: aw-hint-pulse 2.2s ease-in-out infinite;
}

@keyframes aw-hint-pulse {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 1; }
}

[data-theme="book"] .book-cover-overlay--opening .book-cover {
    animation: aw-cover-open 0.8s cubic-bezier(0.5, 0, 0.3, 1) both;
}

[data-theme="book"] .book-cover-overlay--opening {
    animation: aw-cover-overlay-out 0.35s ease 0.55s both;
}

@keyframes aw-cover-open {
    from {
        transform: perspective(1800px) rotateY(0deg);
    }

    to {
        transform: perspective(1800px) rotateY(-125deg);
        opacity: 0.4;
    }
}

@keyframes aw-cover-overlay-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* ── Small screens: flatten the page, hide the tabs ── */
@media (max-width: 900px) {
    [data-theme="book"] .book-tabs {
        display: none;
    }

    [data-theme="book"] .content {
        margin: 0.75rem 0.5rem 1.5rem 0.25rem;
        padding: 1.5rem 1.25rem 2rem;
        box-shadow:
            2px 2px 0 -1px var(--book-paper-deep), 3px 3px 0 -1px var(--book-paper-edge),
            5px 5px 0 -1px var(--book-paper-deep), 6px 6px 0 -1px var(--book-paper-edge),
            8px 8px 18px rgba(59, 47, 30, 0.25);
    }
}

/* ── Library ── */
[data-theme="book"] .library-search input[type="search"] {
    background: var(--book-paper);
    font-family: var(--aw-font);
}

[data-theme="book"] .topic-pill {
    background: var(--book-paper);
    border-color: var(--book-paper-edge);
    color: var(--aw-text-secondary);
}

[data-theme="book"] .topic-pill--active {
    background: var(--book-leather);
    border-color: var(--book-leather);
    color: var(--book-gold-soft);
}

[data-theme="book"] .library-badge--free {
    background: var(--aw-primary);
    color: var(--book-paper);
}

[data-theme="book"] .library-badge--premium {
    background: var(--book-gold);
    color: var(--book-leather-deep);
}

[data-theme="book"] .library-shelf-actions {
    background: var(--book-paper-deep);
    border-color: var(--book-paper-edge);
}

[data-theme="book"] .library-chapters-heading,
[data-theme="book"] .library-chapter-title {
    font-family: var(--aw-display-font);
}

[data-theme="book"] .library-confirmation {
    color: var(--book-gold-text);
}

[data-theme="book"] .library-review-stars,
[data-theme="book"] .star-rating input:checked ~ label,
[data-theme="book"] .star-rating label:hover,
[data-theme="book"] .star-rating label:hover ~ label {
    color: var(--book-gold);
}

[data-theme="book"] .library-review-stars--empty {
    color: var(--book-paper-edge);
}

[data-theme="book"] .bookshelf-book__rating {
    font-size: 1rem;
    font-weight: 600;
    color: #F3E7C8;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
    letter-spacing: 1px;
    background: rgba(0, 0, 0, 0.30);
    padding: 3px 12px;
    border-radius: 999px;
}

[data-theme="book"] .bookshelf-book--burgundy {
    background:
        linear-gradient(115deg, rgba(255, 235, 190, 0.10), transparent 40%),
        linear-gradient(160deg, #7A4048 0%, #5E2F36 50%, #48242A 100%);
}
