/**
 * Accessibilitat — només utilitats per a lectors de pantalla i focus de teclat.
 * No modifica l’aparença visual habitual (excepte focus visible en navegació per teclat).
 */

.a11y-sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.a11y-skip-links {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10000;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px;
    pointer-events: none;
}

.a11y-skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.a11y-skip-link:focus {
    pointer-events: auto;
    position: static;
    left: auto;
    width: auto;
    height: auto;
    overflow: visible;
    padding: 10px 14px;
    background: #111827;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    border-radius: 8px;
    outline: 3px solid #f4a261;
    outline-offset: 2px;
}

@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;
    }
}

@media (forced-colors: active) {
    .a11y-skip-link:focus {
        outline: 2px solid CanvasText;
    }
}

/* Barra d’accessibilitat i audiodescripció (discreta, sobre la nav inferior) */
.a11y-toolbar {
    position: fixed;
    left: 12px;
    bottom: calc(72px + env(safe-area-inset-bottom, 0px));
    z-index: 1400;
    font-size: 0.88rem;
    max-width: min(320px, calc(100vw - 24px));
}

.a11y-toolbar-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #0f172a;
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.12);
    cursor: pointer;
}

.a11y-toolbar-toggle:focus-visible {
    outline: 3px solid #f4a261;
    outline-offset: 2px;
}

.a11y-toolbar-toggle-label {
    font-size: 0.82rem;
}

.a11y-toolbar-panel {
    margin-top: 8px;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    background: #fff;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.14);
    color: #334155;
}

.a11y-toolbar-heading {
    margin: 0 0 6px;
    font-size: 0.95rem;
    font-weight: 800;
    color: #0f172a;
}

.a11y-toolbar-hint,
.a11y-toolbar-note {
    margin: 0 0 10px;
    font-size: 0.8rem;
    line-height: 1.45;
    color: #64748b;
}

.a11y-toolbar-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.a11y-toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: none;
    background: #0f766e;
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

.a11y-toolbar-btn:focus-visible {
    outline: 3px solid #f4a261;
    outline-offset: 2px;
}

.a11y-toolbar-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.a11y-toolbar-btn--secondary {
    background: #475569;
}

.a11y-toolbar-rate {
    display: grid;
    gap: 6px;
    margin-bottom: 8px;
}

.a11y-toolbar-rate label {
    font-size: 0.82rem;
    font-weight: 600;
}

.a11y-toolbar-rate input[type="range"] {
    width: 100%;
}

.a11y-toolbar-rate-value {
    font-size: 0.78rem;
    color: #64748b;
}

@media (max-width: 640px) {
    .a11y-toolbar-toggle-label {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
    }

    .a11y-toolbar {
        left: 8px;
        bottom: calc(64px + env(safe-area-inset-bottom, 0px));
    }
}