/*
  Alexandria theme -- "the great library". Sunlit veined marble, papyrus,
  a lapis-lazuli cornice with a gilded egg-and-dart frieze, cedar shelves.
  Reference design: the theme studio of 2026-10-03 (v4). Image sources:
  images/themes/CREDITS.md.

  Tokens apply wherever data-theme="alexandria" is set (also the Settings
  preview cards); textures and ornaments are scoped to
  html[data-theme="alexandria"] so they only load and show when the theme
  is really active.
*/

[data-theme="alexandria"] {
    color-scheme: light;
    --color-primary: #2e5592;
    --color-primary-hover: #26487c;
    --color-primary-active: #1d3a66;

    --color-secondary: #a6802c;
    --color-secondary-hover: #8f6c22;

    --color-gold-accent: #b08a35;
    /* Gold on papyrus is too faint for text: links and accents use the
       darker bronze. */
    --color-accent-text: #7d6122;
    --color-info: #3b7bb8;
    --color-success: #4c7a56;
    /* Genre donut (statistics): four categorical hues, CVD-checked
       against this theme's card surface; a fifth slice is "other". */
    --color-chart-1: #2e5592;
    --color-chart-2: #a8842f;
    --color-chart-3: #8a4768;
    --color-chart-4: #4c7a56;
    --color-warning: #b8862b;
    --color-error: #b0413e;

    --color-bg-paper: #efe7d6;
    --color-bg-light: #fbf6ea;
    --color-bg-dark: #1d3254;
    --color-overlay-scrim: rgba(29, 50, 84, 0.45);
    --color-bg-card: #faf4e4;
    --color-bg-reader: #f7f0e0;

    --color-text-primary: #1b2436;
    --color-text-secondary: #434d63;
    --color-text-muted: #5d6476;
    --color-text-disabled: #9aa0ad;
    --color-text-on-dark: #f1e6c8;

    --color-border: #dccfae;

    --font-family-display: "Cinzel", Georgia, "Times New Roman", serif;
    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 14px 30px -20px rgba(80, 56, 18, 0.5), 0 2px 6px rgba(80, 56, 18, 0.08);
    --shadow-card-hover: 0 1px 0 rgba(255, 255, 255, 0.7) inset, 0 20px 40px -22px rgba(80, 56, 18, 0.55), 0 2px 6px rgba(80, 56, 18, 0.1);
}

/* The floor of the reading hall: warm veined marble with a pool of
   afternoon light from the upper right. */
html[data-theme="alexandria"] body {
    background: transparent;
}

/* On <html>, not <body>: see WorldBackdrop in app.css. */
html[data-theme="alexandria"] {
    background:
        radial-gradient(70% 45% at 88% 12%, rgba(255, 233, 180, 0.5), transparent 70%),
        linear-gradient(180deg, rgba(242, 235, 220, 0.78), rgba(226, 212, 182, 0.72)),
        url("../../images/themes/alexandria/cream_marble.webp") 0 0 / 640px,
        var(--color-bg-paper);
    background-attachment: fixed;
}

/* A lapis-marble cornice lit from above. Below it a gilded fillet and a
   fine running meander sit on the marble floor itself -- a hairline, not a
   frieze, so the header stays light. */
html[data-theme="alexandria"] .app-header {
    background:
        linear-gradient(180deg, rgba(255, 236, 190, 0.14), rgba(0, 0, 0, 0) 40%, rgba(5, 12, 30, 0.35)),
        url("../../images/themes/alexandria/lapis_marble.webp") center / 520px,
        #1d3254;
    border-bottom: 0;
    box-shadow: 0 8px 16px -10px rgba(30, 20, 5, 0.55);
}

html[data-theme="alexandria"] .app-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -11px;
    height: 11px;
    pointer-events: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='11' viewBox='0 0 24 11'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='0' y2='11' gradientUnits='userSpaceOnUse'%3E%3Cstop offset='0' stop-color='%23f4dc94'/%3E%3Cstop offset='.45' stop-color='%23c99d45'/%3E%3Cstop offset='1' stop-color='%238a6420'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='24' height='1.5' fill='url(%23g)'/%3E%3Cpath d='M0 10.5H21.5V3.5H5.5V8.5H16.5V6' fill='none' stroke='url(%23g)' stroke-width='1'/%3E%3C/svg%3E") 0 0 / 24px 11px repeat-x;
    filter: drop-shadow(0 1px 0 rgba(255, 250, 235, 0.55));
}

html[data-theme="alexandria"] .app-logo-text {
    color: #e8cf86;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.45);
}

/* Cards are sheets of translucent vellum: the marble floor and the
   pictures glow through a warm, blurred wash; a white lit edge on top, a
   fine gold rim and a long soft shadow instead of an opaque box. */
html[data-theme="alexandria"] .dashboard-stat,
html[data-theme="alexandria"] .stats-card,
html[data-theme="alexandria"] .settings-card,
html[data-theme="alexandria"] .profile-card,
html[data-theme="alexandria"] .world-card,
html[data-theme="alexandria"] .world-surface,
html[data-theme="alexandria"] .book-detail,
html[data-theme="alexandria"] .lore-content,
html[data-theme="alexandria"] .discover-section {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0) 30%),
        linear-gradient(160deg, rgba(255, 251, 241, 0.66), rgba(248, 238, 214, 0.5));
    border-color: rgba(150, 112, 40, 0.2);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.85),
        0 1px 2px rgba(80, 56, 18, 0.06),
        0 24px 46px -30px rgba(80, 56, 18, 0.5);
}

/* The blur, except while a dialog is open inside the card (a
   backdrop-filter would trap its fixed overlay). */
html[data-theme="alexandria"] .dashboard-stat:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .stats-card:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .settings-card:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .profile-card:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .world-card:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .world-surface:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .book-detail:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .lore-content:not(:has(.dialog-overlay)),
html[data-theme="alexandria"] .discover-section:not(:has(.dialog-overlay)) {
    -webkit-backdrop-filter: blur(12px) saturate(1.1);
    backdrop-filter: blur(12px) saturate(1.1);
}


/* ---------- Home hero: the reading hall, in lapis and papyrus ---------- */
html[data-theme="alexandria"] .home-hero-layer,
html[data-theme="alexandria"] .home-hero-scrim {
    display: none;
}

html[data-theme="alexandria"] .home-hero {
    background-color: #f1e9d6;
}

html[data-theme="alexandria"] .home-hero-world {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
}

/* After O. von Corven's 19th-century engraving (public domain), tinted. */
html[data-theme="alexandria"] .home-hero-world-image {
    position: absolute;
    inset: -4%;
    background: url("../../images/themes/alexandria/library_duotone.webp") center 30% / cover;
    filter: sepia(0.12) contrast(0.98);
}

html[data-theme="alexandria"] .home-hero-world-shade {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(241, 233, 214, 0.96) 0%, rgba(241, 233, 214, 0.82) 36%, rgba(241, 233, 214, 0.04) 72%),
        linear-gradient(0deg, rgba(238, 229, 210, 0.97) 0%, rgba(239, 231, 214, 0) 45%);
}

/* Afternoon light falling through high windows, drifting slowly. */
html[data-theme="alexandria"] .home-hero-rays {
    position: absolute;
    inset: -30% -10% 0 30%;
    pointer-events: none;
    mix-blend-mode: screen;
    background:
        linear-gradient(112deg, transparent 18%, rgba(255, 231, 170, 0.55) 22%, transparent 27%),
        linear-gradient(108deg, transparent 38%, rgba(255, 236, 190, 0.45) 41%, transparent 47%),
        linear-gradient(115deg, transparent 58%, rgba(255, 228, 160, 0.38) 62%, transparent 68%);
    filter: blur(14px);
    animation: alexandria-rays 16s ease-in-out infinite alternate;
}

@keyframes alexandria-rays {
    from { transform: translateX(-2%) skewX(-2deg); opacity: 0.75; }
    to { transform: translateX(3%) skewX(2deg); opacity: 1; }
}

html[data-theme="alexandria"] .home-hero-motes {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

html[data-theme="alexandria"] .home-hero-content {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    gap: var(--space-1);
}

html[data-theme="alexandria"] .home-hero-content h1 {
    color: var(--color-bg-dark);
    text-shadow: none;
    border-bottom-color: var(--color-gold-accent);
}

html[data-theme="alexandria"] .home-hero-eyebrow--alexandria {
    display: block;
    margin: 0;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--color-accent-text);
}

html[data-theme="alexandria"] .home-hero-greek {
    display: block;
    margin: 0;
    font-family: "Cinzel", Georgia, serif;
    font-size: 0.72rem;
    letter-spacing: 0.32em;
    color: var(--color-accent-text);
}

@media (max-width: 599.98px) {
    html[data-theme="alexandria"] .home-hero-world-shade {
        background: linear-gradient(0deg, rgba(239, 231, 214, 0.95) 10%, rgba(241, 233, 214, 0.8) 55%, rgba(241, 233, 214, 0.3));
    }
}

@media (prefers-reduced-motion: reduce) {
    html[data-theme="alexandria"] .home-hero-wisteria,
    html[data-theme="alexandria"] .home-hero-rays {
        animation: none;
    }
}

/* Cinzel is all capitals: right for headings, too wide for the one-line
   book titles under covers, which use the reading serif instead. */
html[data-theme="alexandria"] .book-card-title,
html[data-theme="alexandria"] .shelf-book-cover-title {
    font-family: var(--font-family-reader);
}


/* ---------- Reading calendar: a mosaic of hand-set tesserae ---------- */
html[data-theme="alexandria"] .calendar-heatmap {
    background: #ddd0b3;
    box-shadow: inset 0 0 0 1px rgba(150, 112, 40, 0.25), inset 0 4px 10px rgba(80, 56, 18, 0.25);
}

html[data-theme="alexandria"] .calendar-cell {
    border-radius: 2px 4px 3px 2px;
    background: #ece5d5;
    box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

html[data-theme="alexandria"] .calendar-cell:nth-child(2n) {
    border-radius: 4px 2px 2px 3px;
}

html[data-theme="alexandria"] .calendar-cell::before {
    display: none;
}

html[data-theme="alexandria"] .calendar-cell--level-1 { background: linear-gradient(160deg, #d6dfee, #c2cfe5); }
html[data-theme="alexandria"] .calendar-cell--level-2 { background: linear-gradient(160deg, #9fb5d8, #839dc8); }
html[data-theme="alexandria"] .calendar-cell--level-3 { background: linear-gradient(160deg, #4e78b5, #36609e); }
html[data-theme="alexandria"] .calendar-cell--level-4 { background: linear-gradient(160deg, #e7c66f, #a6802c); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 0 0 1px rgba(166, 128, 44, 0.25); }

html[data-theme="alexandria"] .calendar-months span,
html[data-theme="alexandria"] .calendar-weekdays {
    color: #5d4a22;
}

/* The day's tooltip: a slip of papyrus with an ink date and gold pages. */
html[data-theme="alexandria"] .calendar-tooltip {
    border-color: rgba(150, 112, 40, 0.35);
    background:
        linear-gradient(180deg, rgba(253, 248, 235, 0.95), rgba(244, 233, 206, 0.95)),
        url("../../images/themes/alexandria/papyrus.webp") center / 220px;
    color: #2b2213;
    box-shadow: 0 10px 24px -10px rgba(60, 40, 10, 0.55);
}

html[data-theme="alexandria"] .calendar-tooltip span { color: #8a6420; }
html[data-theme="alexandria"] .calendar-tooltip small { color: #6e5a38; }
html[data-theme="alexandria"] .calendar-cell.is-selected { outline-color: #1d3254; }

/* ---------- Progress: a gilded thread ----------
   A drawn gold wire laid in an engraved hairline groove: no rounded pill,
   no knob, and the leading end tapers off like a thread instead of
   stopping in a cap. The wire's darker body (#9a7224) holds 3:1 against
   the marble and papyrus behind it. */
html[data-theme="alexandria"] .book-card-progress,
html[data-theme="alexandria"] .book-detail-progress-track,
html[data-theme="alexandria"] .shelf-book-progress {
    height: 3px;
    border-radius: 0;
    background: linear-gradient(180deg, transparent 1px, rgba(110, 82, 34, 0.28) 1px, rgba(110, 82, 34, 0.28) 2px, transparent 2px);
    overflow: visible;
}

html[data-theme="alexandria"] .book-detail-progress-track {
    height: 4px;
    background: linear-gradient(180deg, transparent 1.5px, rgba(110, 82, 34, 0.3) 1.5px, rgba(110, 82, 34, 0.3) 2.5px, transparent 2.5px);
}

html[data-theme="alexandria"] .book-card-large .book-card-progress {
    height: 3px;
}

html[data-theme="alexandria"] .book-card-progress-bar,
html[data-theme="alexandria"] .book-detail-progress-fill,
html[data-theme="alexandria"] .shelf-book-progress-bar {
    border-radius: 0;
    background: linear-gradient(180deg, #f6e0a0 0%, #d4aa52 30%, #9a7224 70%, #6f4f15 100%);
    box-shadow: 0 1px 1.5px rgba(70, 48, 12, 0.3);
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 10px), rgba(0, 0, 0, 0.35));
    mask-image: linear-gradient(90deg, #000 calc(100% - 10px), rgba(0, 0, 0, 0.35));
}

/* On a cover the groove would vanish: a dark hairline keeps the thread
   readable over any artwork. */
html[data-theme="alexandria"] .shelf-book-progress {
    background: rgba(20, 14, 4, 0.45);
}

/* ---------- Scroll shelf (Home + Library "Rollen" view) ----------
   Papyrus scrolls lying on cedar boards, seen from the front (theme studio
   v4). Rows have a fixed height; one masked layer draws a board under every
   row, so the wall reflows to any width without a fixed count per board.
   Row: 58px of scrolls, a 16px board, then room for the hanging tags. */
html[data-theme="alexandria"] .scroll-wall {
    --row: 144px;
    --board-top: 58px;
    --board-bottom: 74px;
    position: relative;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(8.5rem, 1fr));
    grid-auto-rows: var(--row);
    gap: 0 18px;
    padding: 18px 24px 0;
    border-radius: var(--radius-md, 12px);
    background:
        radial-gradient(80% 60% at 50% 0%, rgba(255, 220, 160, 0.18), transparent 70%),
        linear-gradient(180deg, rgba(20, 10, 4, 0.55), rgba(20, 10, 4, 0.8)),
        url("../../images/themes/alexandria/cedar.webp") center / 420px,
        #3a2414;
    box-shadow: inset 0 0 0 1px rgba(255, 220, 170, 0.12), inset 0 18px 30px -12px rgba(0, 0, 0, 0.7), 0 22px 40px -24px rgba(50, 30, 10, 0.8);
}

/* The boards: cedar, lit on the front edge, cut out row by row. */
html[data-theme="alexandria"] .scroll-wall::before {
    content: "";
    position: absolute;
    inset: 18px 0 0;
    border-radius: 0 0 var(--radius-md, 12px) var(--radius-md, 12px);
    background:
        repeating-linear-gradient(180deg, transparent 0 var(--board-top), rgba(255, 220, 170, 0.35) var(--board-top), rgba(0, 0, 0, 0) calc(var(--board-top) + 5px), rgba(0, 0, 0, 0.45) var(--board-bottom), transparent var(--board-bottom) var(--row)),
        url("../../images/themes/alexandria/cedar.webp") 0 40% / 420px;
    -webkit-mask-image: repeating-linear-gradient(180deg, transparent 0 var(--board-top), #000 var(--board-top) var(--board-bottom), transparent var(--board-bottom) var(--row));
    mask-image: repeating-linear-gradient(180deg, transparent 0 var(--board-top), #000 var(--board-top) var(--board-bottom), transparent var(--board-bottom) var(--row));
    pointer-events: none;
}

/* The shadow each board throws on the wall below it. */
html[data-theme="alexandria"] .scroll-wall::after {
    content: "";
    position: absolute;
    inset: 18px 0 0;
    background: repeating-linear-gradient(180deg, transparent 0 var(--board-bottom), rgba(0, 0, 0, 0.5) var(--board-bottom), transparent calc(var(--board-bottom) + 14px), transparent var(--row));
    pointer-events: none;
}

html[data-theme="alexandria"] .book-scroll {
    position: relative;
    z-index: 1;
    display: block;
    align-self: start;
    height: var(--board-top);
    text-decoration: none;
}

html[data-theme="alexandria"] .book-scroll:focus-visible {
    outline: 2px solid #f3e6c5;
    outline-offset: 4px;
    border-radius: 6px;
}

/* A rolled sheet: real papyrus fibre, lit from above, with turned rod ends
   and a coloured band in the genre's wax colour. */
html[data-theme="alexandria"] .scroll-cylinder {
    position: absolute;
    left: var(--inset-left, 8px);
    right: var(--inset-right, 8px);
    bottom: 0;
    height: var(--h, 44px);
    border-radius: 7px / 50%;
    background:
        linear-gradient(180deg, rgba(255, 246, 220, 0.55) 0%, rgba(255, 246, 220, 0) 28%, rgba(0, 0, 0, 0) 55%, rgba(60, 36, 8, 0.55) 100%),
        url("../../images/themes/alexandria/papyrus.webp") center / 180px,
        #d9c08a;
    box-shadow: 0 6px 8px -3px rgba(0, 0, 0, 0.6);
}

html[data-theme="alexandria"] .scroll-cylinder::before,
html[data-theme="alexandria"] .scroll-cylinder::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 9px;
    height: 60%;
    translate: 0 -50%;
    border-radius: 3px;
    background: linear-gradient(180deg, #f1e3c0, #a98a54 60%, #6b522a);
    box-shadow: 0 2px 3px rgba(0, 0, 0, 0.5);
}

html[data-theme="alexandria"] .scroll-cylinder::before { left: -8px; }
html[data-theme="alexandria"] .scroll-cylinder::after { right: -8px; }

html[data-theme="alexandria"] .scroll-band {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 22%;
    width: 7px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.25), var(--seal) 35%, color-mix(in srgb, var(--seal) 60%, black));
    opacity: 0.9;
}

/* The sillybos: a parchment tag on a thread, title and author, sealed with
   the genre's wax. Straightens a little on hover/focus. */
html[data-theme="alexandria"] .scroll-tag {
    position: absolute;
    left: 46%;
    top: 100%;
    z-index: 2;
    width: min(94%, 11.5rem);
    margin-top: 18px;
    padding: 0.3rem 0.45rem 0.34rem 1.15rem;
    translate: -50% 0;
    rotate: var(--tilt, -2deg);
    transform-origin: 50% -16px;
    color: #3a2b14;
    text-align: left;
    background:
        linear-gradient(180deg, rgba(250, 242, 222, 0.92), rgba(234, 218, 182, 0.92)),
        url("../../images/themes/alexandria/papyrus.webp") center / 220px;
    clip-path: polygon(1% 8%, 99% 0, 100% 90%, 62% 100%, 3% 96%);
    filter: drop-shadow(0 4px 4px rgba(0, 0, 0, 0.45));
    transition: rotate 0.7s cubic-bezier(0.22, 1, 0.36, 1), translate 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

/* The thread sits outside the clipped tag, so it's drawn on the link. */
html[data-theme="alexandria"] .book-scroll::after {
    content: "";
    position: absolute;
    left: 46%;
    top: 100%;
    width: 1px;
    height: 18px;
    background: #c9b083;
}

html[data-theme="alexandria"] .scroll-tag::after {
    content: "";
    position: absolute;
    left: 0.35rem;
    top: 50%;
    width: 0.55rem;
    height: 0.55rem;
    translate: 0 -50%;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, color-mix(in srgb, var(--seal) 60%, white), var(--seal) 60%, color-mix(in srgb, var(--seal) 60%, black));
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.4);
}

html[data-theme="alexandria"] .scroll-tag b,
html[data-theme="alexandria"] .scroll-tag small {
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

html[data-theme="alexandria"] .scroll-tag b {
    font-family: var(--font-family-reader, Georgia, serif);
    font-style: italic;
    font-weight: 500;
    font-size: 0.92rem;
    line-height: 1.15;
}

html[data-theme="alexandria"] .scroll-tag small {
    font-size: 0.62rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #6e5a38;
}

html[data-theme="alexandria"] .book-scroll:hover .scroll-tag,
html[data-theme="alexandria"] .book-scroll:focus-visible .scroll-tag {
    rotate: 0deg;
    translate: -50% 2px;
}

html[data-theme="alexandria"] .scroll-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    margin: 0.8rem 0 0;
    padding: 0;
    list-style: none;
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

html[data-theme="alexandria"] .scroll-legend li {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

html[data-theme="alexandria"] .scroll-legend i {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--seal);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.5), 0 0 0 1px rgba(0, 0, 0, 0.15);
}

@media (max-width: 480px) {
    html[data-theme="alexandria"] .scroll-wall {
        gap: 0 14px;
        padding-inline: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html[data-theme="alexandria"] .scroll-tag {
        transition: none;
    }
}

/* ---------- Studio dashboard (WorldDashboard) ---------- */

html[data-theme="alexandria"] .world-card-head h2 {
    font-family: var(--font-family-display);
    color: #1d3254;
}

html[data-theme="alexandria"] .home-hero-lead {
    color: #3b3222;
}

html[data-theme="alexandria"] .home-hero-cta {
    background: linear-gradient(180deg, #34609f, #26487c);
    color: #f7f2e5;
    box-shadow: 0 12px 26px -12px rgba(29, 50, 84, 0.7);
}

html[data-theme="alexandria"] .home-hero-cta-go {
    background: rgba(255, 255, 255, 0.14);
}

html[data-theme="alexandria"] .world-goal-text b {
    font-size: 1.2rem;
    color: #1d3254;
}

/* The hero's light hall fades into the (now calmer) marble floor. */
html[data-theme="alexandria"] .home-hero {
    background-color: transparent;
}

/* ---------- Page banners (WorldBanner) ----------
   One picture per page (CREDITS.md); the plain rule is the fallback
   for a page without its own. */
html[data-theme="alexandria"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_pharos.webp") 60% 35% / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="library"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_leiden_library.webp") 50% 40% / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="shelves"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_pantheon_interior.webp") center / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="statistics"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_cellarius.webp") 70% 45% / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="discover"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_ptolemy_map.webp") 60% 40% / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="projects"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_pharos.webp") 60% 35% / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="settings"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_pantheon_portico.webp") center / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="profile"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_colossus.webp") center / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="offline"] .world-banner-image {
    background: url("../../images/themes/alexandria/banner_mausoleum.webp") center / cover;
}

html[data-theme="alexandria"] .world-banner[data-page="upload"] .world-banner-image {
    background: url("../../images/themes/alexandria/library_duotone.webp") center 30% / cover;
}

html[data-theme="alexandria"] .world-banner-shade {
    background: linear-gradient(90deg, rgba(241, 233, 214, 0.96) 0%, rgba(241, 233, 214, 0.84) 34%, rgba(241, 233, 214, 0.06) 70%);
}

html[data-theme="alexandria"] .world-banner-content h1 {
    font-size: clamp(1.8rem, 3.2vw, 2.4rem);
    color: #1d3254;
}

html[data-theme="alexandria"] .world-banner-eyebrow { color: var(--color-accent-text); }
html[data-theme="alexandria"] .world-banner-subtitle { color: #3b3222; }

@media (max-width: 599.98px) {
    html[data-theme="alexandria"] .world-banner-shade {
        background: linear-gradient(0deg, rgba(239, 231, 214, 0.95) 10%, rgba(241, 233, 214, 0.75) 60%, rgba(241, 233, 214, 0.25));
    }
}

/* ---------- Detail pages (WorldBackdrop) ---------- */
html[data-theme="alexandria"] .world-backdrop-image {
    opacity: 0.9;
}

html[data-theme="alexandria"] .world-backdrop-image--texture {
    inset: 0;
    background:
        radial-gradient(60% 80% at 75% 10%, rgba(255, 226, 160, 0.75), transparent 70%),
        url("../../images/themes/alexandria/papyrus.webp") center / 420px;
    filter: none;
    transform: none;
    opacity: 0.55;
}

html[data-theme="alexandria"] .world-backdrop-shade {
    background: linear-gradient(180deg, rgba(241, 233, 214, 0.05) 0%, rgba(241, 233, 214, 0.3) 60%, rgba(239, 231, 214, 0.75) 100%);
}

/* Comments: faint vellum tiles, the composer as a vellum card. */
html[data-theme="alexandria"] .book-comment-item {
    background: rgba(255, 252, 244, 0.45);
    border-color: rgba(150, 112, 40, 0.12);
}

html[data-theme="alexandria"] .book-comments > .comment-form {
    background: linear-gradient(160deg, rgba(255, 251, 241, 0.72), rgba(248, 238, 214, 0.58));
    border-color: rgba(150, 112, 40, 0.2);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85), 0 24px 46px -30px rgba(80, 56, 18, 0.5);
}

html[data-theme="alexandria"] .book-comments > p.text-muted {
    border-color: rgba(150, 112, 40, 0.3);
    background: rgba(255, 252, 244, 0.3);
}

/* Project, character, place and lore cards: translucent tiles without a
   blur (there can be dozens of them). */
html[data-theme="alexandria"] .entity-card {
    background: linear-gradient(160deg, rgba(255, 252, 244, 0.72), rgba(248, 239, 217, 0.6));
    border-color: rgba(150, 112, 40, 0.2);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85), 0 16px 32px -24px rgba(80, 56, 18, 0.45);
}

/* Bookshelf styles (spec 2026-10-11 §4): wood, brass and light of the
   library shelf in this theme. */
[data-theme="alexandria"] {
    --shelf-wood: #5a3a22;
    --shelf-wood-tint: rgba(255,210,150,.08);
    --shelf-brass-hi: #f5dc8f;
    --shelf-brass: #d4a94a;
    --shelf-brass-lo: #8f6a1c;
    --shelf-plaque-ink: #2a1a06;
    --shelf-light: rgba(255,205,130,.26);
    --shelf-room: transparent;
}