/* =====================================
   ACCESIBILIDAD WEB - Adega Frieira
   Kit Digital · WCAG 2.1 Nivel AA · UNE-EN 301 549:2022
   ===================================== */

/* =========================
   ENLACE "SALTAR AL CONTENIDO"
   ========================= */

.skip-link {
    position: absolute;
    top: -120px;
    left: 1.5rem;
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: 0.85rem 1.5rem;
    font-family: var(--font-body);
    font-weight: var(--font-bold);
    font-size: var(--text-base);
    border: 3px solid #E6C875;
    border-top: 0;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    z-index: 100000;
    transition: top var(--transition-fast);
}

.skip-link:focus,
.skip-link:focus-visible {
    top: 0;
    outline: 3px solid #E6C875;
    outline-offset: 2px;
}

#main-content:focus {
    outline: none;
}

/* Foco visible reforzado (contraste sobre fondos claros y oscuros) */
:focus-visible {
    outline: 3px solid #E6C875 !important;
    outline-offset: 3px !important;
    box-shadow: 0 0 0 6px rgba(139, 30, 63, 0.55) !important;
}

/* =========================
   FRANJA INSTITUCIONAL KIT DIGITAL
   ========================= */

.kit-digital-strip {
    background: var(--color-white);
    padding: 1.5rem 1rem;
    border-top: 1px solid var(--color-gray-200);
    text-align: center;
}

.kit-digital-banner-img {
    max-width: 960px;
    width: 100%;
    height: auto;
    display: inline-block;
    vertical-align: middle;
}

/* =========================
   BOTÓN FLOTANTE
   ========================= */

.a11y-floating-wrapper {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 10000;
}

.a11y-trigger-btn {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    border: 2.5px solid #E6C875;
    box-shadow: 0 8px 24px rgba(139, 30, 63, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.a11y-trigger-btn:hover {
    transform: scale(1.08);
    background: var(--color-primary-dark);
    box-shadow: 0 10px 28px rgba(139, 30, 63, 0.6);
}

@media (max-width: 767px) {
    .a11y-floating-wrapper {
        bottom: 1rem;
        left: 1rem;
    }

    .a11y-trigger-btn {
        width: 48px;
        height: 48px;
    }
}

/* =========================
   PANEL / MODAL
   ========================= */

.a11y-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(26, 32, 36, 0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 10010;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.a11y-modal-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.a11y-modal-window {
    background: var(--color-white);
    color: var(--color-secondary);
    font-family: var(--font-body);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    transform: translateY(20px) scale(0.96);
    transition: transform var(--transition-base);
}

.a11y-modal-backdrop.open .a11y-modal-window {
    transform: translateY(0) scale(1);
}

.a11y-modal-header {
    padding: 1.15rem 1.5rem;
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--color-cream);
}

.a11y-header-title {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.a11y-header-icon {
    display: flex;
    color: var(--color-primary);
}

.a11y-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: var(--font-bold);
    color: var(--color-secondary);
    margin: 0;
    line-height: 1.25;
}

.a11y-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    background: rgba(139, 30, 63, 0.08);
    padding: 0.15rem 0.55rem;
    border-radius: var(--radius-full);
    margin-top: 0.25rem;
}

.a11y-close-btn {
    background: transparent;
    border: none;
    color: var(--color-gray-600);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.a11y-close-btn:hover {
    background: var(--color-gray-200);
    color: var(--color-secondary);
}

.a11y-modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
}

.a11y-section-title {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: var(--font-bold);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    margin: 0 0 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.a11y-btn-group,
.a11y-grid-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.a11y-btn,
.a11y-card-btn {
    background: var(--color-cream);
    border: 1px solid var(--color-gray-200);
    color: var(--color-secondary);
    border-radius: var(--radius-lg);
    font-family: var(--font-body);
    font-weight: var(--font-semibold);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition-fast);
}

.a11y-btn {
    padding: 0.6rem 0.4rem;
    font-size: 0.78rem;
    gap: 0.2rem;
}

.a11y-card-btn {
    padding: 0.75rem 0.4rem;
    font-size: 0.75rem;
    gap: 0.45rem;
}

.a11y-btn-ico {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: var(--font-bold);
}

.a11y-btn:hover,
.a11y-card-btn:hover {
    background: rgba(139, 30, 63, 0.06);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.a11y-btn.active,
.a11y-card-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    font-weight: var(--font-bold);
}

.a11y-grid-toggles {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.a11y-toggle-btn {
    background: var(--color-cream);
    border: 1px solid var(--color-gray-200);
    color: var(--color-secondary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: var(--font-semibold);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-align: left;
    transition: all var(--transition-fast);
}

.a11y-toggle-btn > svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.a11y-toggle-state {
    margin-left: auto;
    width: 40px;
    height: 22px;
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
    position: relative;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.a11y-toggle-state::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-white);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
}

.a11y-toggle-btn.active {
    background: rgba(139, 30, 63, 0.06);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.a11y-toggle-btn.active .a11y-toggle-state {
    background: var(--color-primary);
}

.a11y-toggle-btn.active .a11y-toggle-state::after {
    transform: translateX(18px);
}

.a11y-modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    background: var(--color-cream);
}

.a11y-reset-btn {
    background: transparent;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-600);
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-lg);
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: var(--font-bold);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}

.a11y-reset-btn:hover {
    background: #FEE2E2;
    border-color: var(--color-error);
    color: var(--color-error);
}

.a11y-statement-link {
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: var(--font-bold);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.a11y-statement-link:hover {
    text-decoration: underline;
}

@media (max-width: 479px) {
    .a11y-btn-group,
    .a11y-grid-options {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =====================================
   MODIFICADORES DINÁMICOS EN <html>
   ===================================== */

/* 1. Tamaño de fuente */
html.a11y-font-sm {
    font-size: 88% !important;
}

html.a11y-font-lg {
    font-size: 120% !important;
}

html.a11y-font-xl {
    font-size: 140% !important;
}

/* 2. Alto contraste (texto blanco/amarillo sobre negro, ratio > 7:1) */
html.a11y-high,
html.a11y-high body,
html.a11y-high main,
html.a11y-high nav,
html.a11y-high header,
html.a11y-high footer,
html.a11y-high section,
html.a11y-high article,
html.a11y-high div,
html.a11y-high .navbar,
html.a11y-high .footer {
    background-color: #000000 !important;
    color: #FFFFFF !important;
    border-color: #FFD700 !important;
    box-shadow: none !important;
    text-shadow: none !important;
}

html.a11y-high h1,
html.a11y-high h2,
html.a11y-high h3,
html.a11y-high h4,
html.a11y-high strong {
    color: #FFD700 !important;
}

html.a11y-high p,
html.a11y-high span,
html.a11y-high li,
html.a11y-high small,
html.a11y-high label {
    color: #FFFFFF !important;
}

html.a11y-high a,
html.a11y-high button,
html.a11y-high .btn {
    color: #FFFF00 !important;
    background-color: #000000 !important;
    border: 2px solid #FFFF00 !important;
}

html.a11y-high a {
    text-decoration: underline !important;
}

html.a11y-high .navbar.scrolled .navbar-logo {
    filter: none !important;
}

html.a11y-high .kit-digital-strip {
    background-color: #FFFFFF !important;
}

/* 3. Escala de grises */
html.a11y-grayscale {
    filter: grayscale(100%) !important;
}

/* 4. Invertir colores (las imágenes conservan su color original) */
html.a11y-invert {
    filter: invert(100%) hue-rotate(180deg) !important;
}

html.a11y-invert img,
html.a11y-invert video,
html.a11y-invert iframe {
    filter: invert(100%) hue-rotate(180deg) !important;
}

/* 5. Tipografía para dislexia */
html.a11y-dyslexic,
html.a11y-dyslexic * {
    font-family: Verdana, 'Segoe UI', Arial, sans-serif !important;
    letter-spacing: 0.05em !important;
    word-spacing: 0.16em !important;
    font-style: normal !important;
}

/* 6. Espaciado de texto (WCAG 1.4.12) */
html.a11y-spacing p,
html.a11y-spacing li,
html.a11y-spacing a,
html.a11y-spacing span,
html.a11y-spacing h1,
html.a11y-spacing h2,
html.a11y-spacing h3,
html.a11y-spacing h4,
html.a11y-spacing label {
    line-height: 1.9 !important;
    letter-spacing: 0.12em !important;
    word-spacing: 0.16em !important;
}

html.a11y-spacing p {
    margin-bottom: 2em !important;
}

/* 7. Resaltar enlaces */
html.a11y-highlight-links a {
    text-decoration: underline 3px solid #E6C875 !important;
    text-underline-offset: 3px !important;
    background-color: #FFF8E1 !important;
    color: #6B1730 !important;
    font-weight: var(--font-bold) !important;
    padding: 0.05em 0.25em !important;
    border-radius: 3px !important;
}

/* 8. Cursor grande */
html.a11y-large-cursor,
html.a11y-large-cursor * {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 24 24'%3E%3Cpath d='M4 2l15 11.2-6.3.9 3.8 7.4-2.7 1.4-3.8-7.5L4 20z' fill='%23000' stroke='%23fff' stroke-width='1.5' stroke-linejoin='round'/%3E%3C/svg%3E") 6 3, auto !important;
}

html.a11y-large-cursor a,
html.a11y-large-cursor a *,
html.a11y-large-cursor button,
html.a11y-large-cursor button * {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 24 24'%3E%3Cpath d='M4 2l15 11.2-6.3.9 3.8 7.4-2.7 1.4-3.8-7.5L4 20z' fill='%238B1E3F' stroke='%23fff' stroke-width='1.5' stroke-linejoin='round'/%3E%3C/svg%3E") 6 3, pointer !important;
}

/* 9. Pausar animaciones (también respeta la preferencia del sistema) */
html.a11y-stop-animations *,
html.a11y-stop-animations *::before,
html.a11y-stop-animations *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
}

html.a11y-stop-animations .reveal {
    opacity: 1 !important;
    transform: none !important;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}