/* plg_system_blindlib_a11y — Accessibility toolbar styles */

:root {
    --blindlib-font-scale: 1;
}

/* Skip link: ซ่อนไว้จนกว่าจะโฟกัส (WCAG 2.4.1) */
.blindlib-skip-link {
    position: absolute;
    top: -3rem;
    left: 0.5rem;
    z-index: 10000;
    padding: 0.5rem 1rem;
    background: #000;
    color: #fff;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
}

.blindlib-skip-link:focus {
    top: 0;
}

.blindlib-a11y-toolbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #1f2937;
    color: #fff;
    font-size: 1rem;
}

.blindlib-a11y-toolbar button {
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem 0.75rem;
    border: 2px solid #fff;
    border-radius: 4px;
    background: #1f2937;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
}

.blindlib-a11y-toolbar button:hover {
    background: #374151;
}

/* Focus indicator ที่มองเห็นชัดเจน (WCAG 2.4.7) — ไม่ใช้ outline: none ที่ใดในระบบนี้เลย */
.blindlib-a11y-toolbar button:focus-visible,
.blindlib-skip-link:focus-visible {
    outline: 3px solid #facc15;
    outline-offset: 2px;
}

.blindlib-a11y-toolbar button[aria-pressed="true"] {
    background: #facc15;
    color: #1f2937;
    border-color: #facc15;
}

/* ขนาดตัวอักษรที่ผู้ใช้ปรับได้ — ใช้กับ body เพื่อสเกลทุกอย่างตามสัดส่วน */
body {
    font-size: calc(1rem * var(--blindlib-font-scale));
}

/* โหมดคอนทราสต์สูง */
html.blindlib-high-contrast {
    background: #000 !important;
}

html.blindlib-high-contrast body {
    background: #000 !important;
    color: #fff !important;
}

html.blindlib-high-contrast a {
    color: #ffff00 !important;
}

html.blindlib-high-contrast button,
html.blindlib-high-contrast input,
html.blindlib-high-contrast select,
html.blindlib-high-contrast textarea {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}

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