/* ==========================================================================
   LecturaInteractiva.WebAppCliente — site.css
   Estilo visual completo. No requiere clases nuevas en las vistas.
   Tema oscuro por defecto. Tema claro: <html data-theme="light">
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. Variables de tema
   -------------------------------------------------------------------------- */

:root {
    color-scheme: dark;
    --bg: #0f1115;
    --surface: #171a21;
    --surface-2: #1f232c;
    --border: #2b303b;
    --border-soft: #232731;
    --nav-bg: rgba(23, 26, 33, 0.88);
    --text: #e8e4dc;
    --text-soft: #c9c4ba;
    --muted: #9096a1;
    --accent: #d9a54f;
    --accent-hover: #e8b964;
    --accent-soft: rgba(217, 165, 79, 0.12);
    --on-accent: #1b1406;
    --danger: #f07167;
    --danger-soft: rgba(240, 113, 103, 0.12);
    --danger-text: #f6a39c;
    --input-bg: #12151b;
    --row-alt: rgba(255, 255, 255, 0.022);
    --row-hover: rgba(217, 165, 79, 0.07);
    --glow: rgba(217, 165, 79, 0.08);
    --gold: #e6b84f;
    --silver: #b8c0cc;
    --bronze: #cd8a52;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.45);
    --shadow: 0 12px 32px -14px rgba(0, 0, 0, 0.7);
    --ring: 0 0 0 3px rgba(217, 165, 79, 0.35);
    --select-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%239096a1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
    --radius-sm: 0.5rem;
    --radius: 0.75rem;
    --radius-lg: 1rem;
    /* Sincroniza las variables de Bootstrap con el tema */
    --bs-body-bg: var(--bg);
    --bs-body-color: var(--text);
    --bs-border-color: var(--border);
    --bs-link-color: var(--accent);
    --bs-link-hover-color: var(--accent-hover);
}

    :root[data-theme="light"] {
        color-scheme: light;
        --bg: #f6f2ea;
        --surface: #fffdf9;
        --surface-2: #f1ebe0;
        --border: #e3dbcc;
        --border-soft: #ece6da;
        --nav-bg: rgba(255, 253, 249, 0.88);
        --text: #221f1a;
        --text-soft: #3d3830;
        --muted: #6f685d;
        --accent: #9c6614;
        --accent-hover: #84550e;
        --accent-soft: rgba(156, 102, 20, 0.1);
        --on-accent: #ffffff;
        --danger: #b3261e;
        --danger-soft: rgba(179, 38, 30, 0.08);
        --danger-text: #8c1d17;
        --input-bg: #ffffff;
        --row-alt: rgba(60, 40, 10, 0.025);
        --row-hover: rgba(156, 102, 20, 0.06);
        --glow: rgba(156, 102, 20, 0.07);
        --gold: #b8860b;
        --silver: #7d8796;
        --bronze: #a0612c;
        --shadow-sm: 0 1px 2px rgba(60, 40, 10, 0.08);
        --shadow: 0 12px 32px -16px rgba(60, 40, 10, 0.25);
        --ring: 0 0 0 3px rgba(156, 102, 20, 0.28);
        --select-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%236f685d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
    }


/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */

html {
    font-size: 14px;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text);
    background: radial-gradient(1200px 600px at 50% -250px, var(--glow), transparent 70%), var(--bg);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

    body > .container {
        flex: 1 0 auto;
    }

body,
.navbar,
.footer,
main form,
main table,
main th,
main td,
main input,
main select,
main button,
main > p,
.theme-toggle {
    transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

::selection {
    background: var(--accent-soft);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

    a:hover {
        color: var(--accent-hover);
    }

:focus-visible {
    outline: none;
    box-shadow: var(--ring);
    border-radius: var(--radius-sm);
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--text);
    font-weight: 600;
    letter-spacing: -0.01em;
}


/* --------------------------------------------------------------------------
   3. Navbar (sobrescribe bg-white, navbar-light, text-dark de Bootstrap)
   -------------------------------------------------------------------------- */

.navbar.bg-white {
    position: sticky;
    top: 0;
    z-index: 1030;
    background-color: var(--nav-bg) !important;
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    backdrop-filter: saturate(140%) blur(10px);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.navbar.border-bottom {
    border-bottom: 1px solid var(--border) !important;
}

.navbar.box-shadow {
    box-shadow: var(--shadow-sm) !important;
}

.navbar .navbar-brand {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

    .navbar .navbar-brand:hover,
    .navbar .navbar-brand:focus {
        color: var(--accent);
    }

.navbar .nav-link.text-dark {
    color: var(--muted) !important;
    font-size: 0.95rem;
    font-weight: 500;
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
    border-radius: var(--radius-sm);
}

    .navbar .nav-link.text-dark:hover,
    .navbar .nav-link.text-dark:focus {
        color: var(--text) !important;
        background-color: var(--accent-soft);
    }

.navbar .navbar-toggler {
    border-color: var(--border);
}

    .navbar .navbar-toggler:focus {
        box-shadow: var(--ring);
    }

.navbar .navbar-toggler-icon {
    filter: invert(1) brightness(1.5);
}

:root[data-theme="light"] .navbar .navbar-toggler-icon {
    filter: none;
}


/* --------------------------------------------------------------------------
   4. Botón de cambio de tema (solo lectores)
   -------------------------------------------------------------------------- */

.navbar-nav .nav-item:has(> .theme-toggle) {
    display: flex;
    align-items: center;
    padding: 0.25rem 0;
}

@media (min-width: 576px) {
    .navbar-nav .nav-item:has(> .theme-toggle) {
        margin-left: auto;
        margin-right: 0.5rem;
        padding: 0;
    }
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.375rem 0.9rem;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-soft);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    cursor: pointer;
}

    .theme-toggle:hover {
        color: var(--accent);
        border-color: var(--accent);
    }

    .theme-toggle:focus-visible {
        border-radius: 999px;
    }

.theme-toggle__to-dark {
    display: none;
}

:root[data-theme="light"] .theme-toggle__to-light {
    display: none;
}

:root[data-theme="light"] .theme-toggle__to-dark {
    display: inline;
}


/* --------------------------------------------------------------------------
   5. Contenido principal y títulos
   -------------------------------------------------------------------------- */

main {
    padding-top: 1.5rem;
}

    main > h1 {
        font-size: 2.25rem;
        margin-bottom: 1rem;
    }

    main > h2 {
        font-size: 1.85rem;
        margin-bottom: 1.5rem;
    }

        main > h2::after {
            content: "";
            display: block;
            width: 3rem;
            height: 3px;
            margin-top: 0.6rem;
            border-radius: 3px;
            background: var(--accent);
        }

    main h3 {
        font-size: 1.35rem;
    }

    main p:empty {
        display: none;
    }


/* --------------------------------------------------------------------------
   6. Home (portada)
   -------------------------------------------------------------------------- */

main > .text-center:first-child {
    margin-top: 1.5rem;
    padding: 4.5rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: radial-gradient(600px 260px at 50% 0%, var(--accent-soft), transparent 75%), var(--surface);
    box-shadow: var(--shadow);
}

main > .text-center .display-4 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0;
}

main > .text-center .display-4::after {
    content: "";
    display: block;
    width: 4rem;
    height: 3px;
    margin: 1.25rem auto 1.5rem;
    border-radius: 3px;
    background: var(--accent);
}

/* Presentación */
main > .text-center p {
    max-width: 38rem;
    margin: 0 auto 0.5rem;
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-soft);
}

/* Saludo (siempre es el último párrafo) */
main > .text-center p:last-child {
    display: inline-block;
    margin-top: 1.75rem;
    margin-bottom: 0;
    padding: 0.5rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
}

    /* Botones de la portada */
    main > .text-center > a {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        margin: 1.75rem 0.375rem 0;
        padding: 0.65rem 1.4rem;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--accent);
        background: transparent;
        border: 1px solid var(--accent);
        border-radius: var(--radius-sm);
        transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
    }

        main > .text-center > a:hover {
            color: var(--on-accent);
            background: var(--accent);
        }

        main > .text-center > a:active {
            transform: translateY(1px);
        }

        /* Botón principal: "Iniciar sesión" (último elemento cuando no hay sesión) */
        main > .text-center > a:last-child {
            color: var(--on-accent);
            background: var(--accent);
        }

            main > .text-center > a:last-child::after {
                content: "\2192";
                transition: transform 0.15s ease;
            }

            main > .text-center > a:last-child:hover {
                background: var(--accent-hover);
                border-color: var(--accent-hover);
            }

                main > .text-center > a:last-child:hover::after {
                    transform: translateX(3px);
                }

        /* Saludo debajo del botón cuando hay sesión */
        main > .text-center > a + p:last-child {
            display: table;
            margin-left: auto;
            margin-right: auto;
        }
    /* --------------------------------------------------------------------------
   7. Formularios (Login, Consultar final)
   -------------------------------------------------------------------------- */

    main form {
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
        max-width: 440px;
        padding: 1.75rem;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

        main form label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--muted);
            margin: 0;
        }

        main form input + label,
        main form select + label {
            margin-top: 0.9rem;
        }

    main input:not([type="hidden"]),
    main select {
        width: 100%;
        padding: 0.65rem 0.9rem;
        font-family: inherit;
        font-size: 1rem;
        line-height: 1.4;
        color: var(--text);
        background-color: var(--input-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
    }

        main input:not([type="hidden"]):hover,
        main select:hover {
            border-color: var(--muted);
        }

        main input:not([type="hidden"]):focus,
        main select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: var(--ring);
        }

    main select {
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
        padding-right: 2.5rem;
        background-image: var(--select-arrow);
        background-repeat: no-repeat;
        background-position: right 0.85rem center;
        background-size: 1rem;
        cursor: pointer;
    }

        main select option {
            color: var(--text);
            background-color: var(--surface);
        }

    main button {
        align-self: flex-start;
        margin-top: 1.1rem;
        padding: 0.65rem 1.4rem;
        font-family: inherit;
        font-size: 0.95rem;
        font-weight: 600;
        line-height: 1.4;
        color: var(--on-accent);
        background: var(--accent);
        border: 1px solid transparent;
        border-radius: var(--radius-sm);
        cursor: pointer;
    }

        main button:hover {
            background: var(--accent-hover);
        }

        main button:active {
            transform: translateY(1px);
        }

    /* Login centrado */
    main:has(form[action*="Login"]) {
        padding-top: 3rem;
    }

        main:has(form[action*="Login"]) > h2 {
            text-align: center;
        }

            main:has(form[action*="Login"]) > h2::after {
                margin-left: auto;
                margin-right: auto;
            }

        main:has(form[action*="Login"]) > form {
            margin: 0 auto;
        }

            main:has(form[action*="Login"]) > form button {
                align-self: stretch;
            }


    /* --------------------------------------------------------------------------
   8. Mensajes (ViewBag.msg, vistas de error, estados vacíos)
   -------------------------------------------------------------------------- */

    /* Estado vacío neutro (Historial sin resultados) */
    main > form + p:last-child {
        max-width: 640px;
        margin-top: 1.5rem;
        padding: 0.9rem 1.15rem;
        color: var(--muted);
        background: var(--surface-2);
        border-left: 4px solid var(--border);
        border-radius: var(--radius-sm);
    }

    /* Errores: vistas de error (h2 + p) y mensaje del Login */
    main > h2:first-child + p:last-child,
    main:has(form[action*="Login"]) > form + p {
        max-width: 640px;
        padding: 0.9rem 1.15rem;
        color: var(--danger-text);
        background: var(--danger-soft);
        border: 1px solid transparent;
        border-left: 4px solid var(--danger);
        border-radius: var(--radius-sm);
    }

    main:has(form[action*="Login"]) > form + p {
        max-width: 440px;
        margin: 1.25rem auto 0;
        text-align: center;
        border-left-width: 1px;
        border-color: var(--danger);
    }

/* jQuery Validation */
.input-validation-error {
    border-color: var(--danger) !important;
}

    .input-validation-error:focus {
        box-shadow: 0 0 0 3px var(--danger-soft) !important;
    }

.field-validation-error {
    display: block;
    font-size: 0.8rem;
    color: var(--danger-text);
}

.field-validation-valid,
.validation-summary-valid {
    display: none;
}

.validation-summary-errors {
    padding: 0.9rem 1.15rem;
    color: var(--danger-text);
    background: var(--danger-soft);
    border-left: 4px solid var(--danger);
    border-radius: var(--radius-sm);
}

    .validation-summary-errors ul {
        margin: 0;
        padding-left: 1.1rem;
    }


/* --------------------------------------------------------------------------
   9. Tablas (Rankings, Historial)
   -------------------------------------------------------------------------- */

main table {
    width: 100%;
    margin-top: 0.5rem;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.95rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

main thead th {
    padding: 0.85rem 1.15rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-align: left;
    color: var(--muted);
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}

main tbody td {
    padding: 0.85rem 1.15rem;
    color: var(--text);
    border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
}

main tbody tr:last-child td {
    border-bottom: 0;
}

main tbody tr:nth-child(even) td {
    background: var(--row-alt);
}

main tbody tr:hover td {
    background: var(--row-hover);
}

@media (max-width: 575.98px) {
    main table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

/* Rankings (tablas de 3 columnas): posición y medallas para el top 3 */
main table:not(:has(th:nth-child(4))) th:first-child,
main table:not(:has(th:nth-child(4))) td:first-child {
    width: 7rem;
}

main table:not(:has(th:nth-child(4))) td:first-child {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--muted);
}

main table:not(:has(th:nth-child(4))) td:last-child {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

main table:not(:has(th:nth-child(4))) tbody tr:nth-child(-n+3) td:first-child::before {
    content: "";
    display: inline-block;
    width: 0.65em;
    height: 0.65em;
    margin-right: 0.6em;
    vertical-align: 0.05em;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 25%, transparent);
}

main table:not(:has(th:nth-child(4))) tbody tr:nth-child(1) td:first-child {
    color: var(--gold);
}

main table:not(:has(th:nth-child(4))) tbody tr:nth-child(2) td:first-child {
    color: var(--silver);
}

main table:not(:has(th:nth-child(4))) tbody tr:nth-child(3) td:first-child {
    color: var(--bronze);
}

main table:not(:has(th:nth-child(4))) tbody tr:nth-child(1):not(:hover) td {
    background: var(--accent-soft);
}

/* Historial (tabla de 4 columnas) */
main table:has(th:nth-child(4)) td:first-child {
    font-weight: 600;
}

main table:has(th:nth-child(4)) td:nth-child(2),
main table:has(th:nth-child(4)) td:nth-child(3) {
    font-variant-numeric: tabular-nums;
    color: var(--text-soft);
}


/* --------------------------------------------------------------------------
   10. Historial: barra de filtros
   -------------------------------------------------------------------------- */

main form[action*="ObtenerHistorialLecturas"] {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem 0.75rem;
    max-width: none;
    margin-bottom: 1.5rem;
    padding: 0.9rem 1.1rem;
    box-shadow: var(--shadow-sm);
}

    main form[action*="ObtenerHistorialLecturas"] label,
    main form[action*="ObtenerHistorialLecturas"] input + label {
        margin: 0;
    }

    main form[action*="ObtenerHistorialLecturas"] input + label {
        margin-left: 0.5rem;
    }

    main form[action*="ObtenerHistorialLecturas"] input:not([type="hidden"]) {
        width: 7.5rem;
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }

    main form[action*="ObtenerHistorialLecturas"] button {
        align-self: center;
        margin: 0 0 0 0.5rem;
        padding: 0.5rem 1.25rem;
    }

@media (max-width: 575.98px) {
    main form[action*="ObtenerHistorialLecturas"] input + label {
        margin-left: 0;
    }

    main form[action*="ObtenerHistorialLecturas"] button {
        margin-left: 0;
    }
}


/* --------------------------------------------------------------------------
   11. Historias publicadas (lista)
   -------------------------------------------------------------------------- */

main:has(form[action*="IniciarLectura"]) > h3 {
    margin: 2rem 0 0.6rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

main:has(form[action*="IniciarLectura"]) > h2 + h3 {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

main:has(form[action*="IniciarLectura"]) > h3 + p {
    max-width: 70ch;
    margin-bottom: 0.6rem;
    color: var(--text-soft);
}

main:has(form[action*="IniciarLectura"]) > p:has(+ form) {
    margin-bottom: 0.9rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
}

main form[action*="IniciarLectura"] {
    display: block;
    max-width: none;
    padding: 0;
    background: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

    main form[action*="IniciarLectura"] button {
        margin-top: 0;
    }

        main form[action*="IniciarLectura"] button::after {
            content: "\2192";
            margin-left: 0.5rem;
        }


/* --------------------------------------------------------------------------
   12. Final más alcanzado (ficha)
   -------------------------------------------------------------------------- */

main:has(> h2 + p > strong) > p {
    max-width: 560px;
    margin-bottom: 0.75rem;
    padding: 1.1rem 1.35rem;
    color: var(--text-soft);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

main:has(> h2 + p > strong) > h2 + p {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--text);
    border-left: 4px solid var(--accent);
}

    main:has(> h2 + p > strong) > h2 + p strong {
        display: block;
        margin-bottom: 0.25rem;
        font-family: var(--font-sans);
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: var(--muted);
    }

main:has(> h2 + p > strong) > p + p {
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}


/* --------------------------------------------------------------------------
   13. Lectura (capítulo, opciones y final)
   -------------------------------------------------------------------------- */

main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) {
    counter-reset: opcion;
    padding-top: 2.5rem;
    padding-bottom: 3rem;
}

    main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) > * {
        max-width: 68ch;
        margin-left: auto;
        margin-right: auto;
    }

    /* Título del capítulo */
    main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) > h2 {
        font-size: 2.2rem;
        text-align: center;
        margin-bottom: 2rem;
    }

        main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) > h2::after {
            margin: 1rem auto 0;
        }

        /* Texto del capítulo */
        main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) > h2 + p {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            line-height: 1.85;
            color: var(--text);
            white-space: pre-line;
            hyphens: auto;
        }

            main:is( :has(form[action*="AvanzarLectura"]), :not(:has(form, table, strong, h3)):has(> h2:first-child + p + p:last-child) ) > h2 + p::first-letter {
                float: left;
                font-size: 3.6em;
                line-height: 0.85;
                font-weight: 600;
                padding: 0.08em 0.1em 0 0;
                color: var(--accent);
            }

/* "Elegí una opción:" */
main:has(form[action*="AvanzarLectura"]) > h3 {
    margin-top: 2.75rem;
    margin-bottom: 1rem;
    padding-top: 2rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
    border-top: 1px solid var(--border);
}

/* Opciones */
main form[action*="AvanzarLectura"] {
    display: block;
    margin-bottom: 0.75rem;
    padding: 0;
    background: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    counter-increment: opcion;
}

    main form[action*="AvanzarLectura"] button {
        display: flex;
        align-items: center;
        gap: 1rem;
        width: 100%;
        margin: 0;
        padding: 1rem 1.25rem;
        font-family: var(--font-serif);
        font-size: 1.1rem;
        font-weight: 500;
        text-align: left;
        white-space: normal;
        color: var(--text);
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow-sm);
    }

        main form[action*="AvanzarLectura"] button::before {
            content: counter(opcion, upper-alpha);
            flex: none;
            display: inline-grid;
            place-items: center;
            width: 2rem;
            height: 2rem;
            font-family: var(--font-sans);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-soft);
            border-radius: 50%;
        }

        main form[action*="AvanzarLectura"] button::after {
            content: "\2192";
            flex: none;
            margin-left: auto;
            font-family: var(--font-sans);
            color: var(--muted);
            transition: transform 0.15s ease, color 0.15s ease;
        }

        main form[action*="AvanzarLectura"] button:hover {
            background: var(--surface-2);
            border-color: var(--accent);
            transform: translateX(3px);
        }

            main form[action*="AvanzarLectura"] button:hover::after {
                color: var(--accent);
                transform: translateX(3px);
            }

        main form[action*="AvanzarLectura"] button:active {
            transform: translateX(3px) translateY(1px);
        }

/* "Fin de la historia." */
main:not(:has(form, table, strong, h3)) > h2:first-child + p + p:last-child {
    margin-top: 3rem;
    padding-top: 2rem;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    letter-spacing: 0.04em;
    text-align: center;
    color: var(--text-soft);
    border-top: 1px solid var(--border);
}

    main:not(:has(form, table, strong, h3)) > h2:first-child + p + p:last-child::before {
        content: "\2766";
        display: block;
        margin-bottom: 0.5rem;
        font-size: 1.6rem;
        font-style: normal;
        color: var(--accent);
    }

/* --------------------------------------------------------------------------
   13b. Acerca de
   -------------------------------------------------------------------------- */

main:has(> ul) > * {
    max-width: 68ch;
}

main:has(> ul) > h3 {
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
}

main:has(> ul) > h2 + h3 {
    margin-top: 0;
}

main:has(> ul) > p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-soft);
}

main:has(> ul) > ul {
    margin: 0;
    padding: 0.5rem 0;
    list-style: none;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

    main:has(> ul) > ul li {
        display: flex;
        align-items: baseline;
        gap: 0.75rem;
        padding: 0.7rem 1.25rem;
        color: var(--text);
        border-bottom: 1px solid var(--border-soft);
    }

        main:has(> ul) > ul li:last-child {
            border-bottom: 0;
        }

        main:has(> ul) > ul li::before {
            content: "\2192";
            flex: none;
            font-weight: 600;
            color: var(--accent);
        }

    /* Frase de cierre */
    main:has(> ul) > ul + p:last-child {
        margin-top: 2.25rem;
        padding-top: 1.5rem;
        font-family: var(--font-serif);
        font-size: 1.2rem;
        font-style: italic;
        color: var(--accent);
        border-top: 1px solid var(--border);
    }


/* --------------------------------------------------------------------------
   14. Footer (anula el position: absolute de la plantilla)
   -------------------------------------------------------------------------- */

footer.footer {
    position: static !important;
    width: 100%;
    margin-top: 3rem;
    padding: 1.25rem 0;
    line-height: 1.6 !important;
    white-space: normal !important;
    font-size: 0.85rem;
    background: var(--surface);
}

    footer.footer.border-top {
        border-top: 1px solid var(--border) !important;
    }

    footer.footer.text-muted {
        color: var(--muted) !important;
    }

    footer.footer a {
        color: var(--muted);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

        footer.footer a:hover {
            color: var(--accent);
        }


/* --------------------------------------------------------------------------
   15. Accesibilidad: menos movimiento
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
    }
}