/* ==========================================================================
   Elephas — Accessibility controls
   Skip link, font scaling, dark mode, reduced contrast, dyslexia font,
   spacing, reduced motion, reading guide, settings panel
   ========================================================================== */

/* OpenDyslexic — only downloaded when the class is active */
@font-face {
    font-family: 'OpenDyslexic';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/opendyslexic-regular.woff2') format('woff2');
}

@font-face {
    font-family: 'OpenDyslexic';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/opendyslexic-bold.woff2') format('woff2');
}

/* ===== Skip link ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 1000;
    padding: 10px 18px;
    background: var(--navy);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius);
}

.skip-link:focus {
    top: 12px;
}

/* ===== Font size levels (html font-size scales rem values) ===== */
html.a11y-font-size-1 { font-size: 87.5%; }
html.a11y-font-size-2 { font-size: 93.75%; }
html.a11y-font-size-4 { font-size: 112.5%; }
html.a11y-font-size-5 { font-size: 125%; }

/* ===== Dark mode ===== */
html.a11y-dark {
    --navy: #b9cbe8;          /* headings — light on dark ground */
    --navy-light: #234681;
    --blue: #6ea8ff;
    --blue-light: #8fbcff;
    --text: #dbe4f0;
    --text-light: #97a6bd;
    --bg: #0f1826;            /* alt sections */
    --white: #16213a;         /* page + cards */
    --border: #2a3a57;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.45), 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Places where --navy is used as a surface or on amber — keep the real navy */
html.a11y-dark .hero,
html.a11y-dark .page-hero,
html.a11y-dark .cta-band {
    background:
        linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
        linear-gradient(135deg, #16294a 0%, #1d3a6b 100%);
    background-size: 60px 60px, 60px 60px, 100% 100%;
    color: #ffffff;
}

html.a11y-dark .btn-outline {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.4);
}

html.a11y-dark .btn-outline:hover {
    border-color: #ffffff;
}

html.a11y-dark .btn-primary {
    color: #1a365d;
}

html.a11y-dark .btn-nav {
    background: #234681;
    color: #ffffff;
}

html.a11y-dark .btn-nav:hover {
    background: #2d5498;
}

html.a11y-dark .steps li::before {
    background: #234681;
    color: #ffffff;
}

html.a11y-dark .footer {
    background: #0b1220;
}

html.a11y-dark .nav {
    background: rgba(13, 20, 33, 0.95);
}

html.a11y-dark .logo-img {
    filter: brightness(0) invert(1);
    opacity: 0.92;
}

html.a11y-dark .nav-toggle span {
    background: var(--text);
}

html.a11y-dark .form-status.success {
    color: #4ade80;
}

html.a11y-dark .form-status.error {
    color: #f87171;
}

/* ===== Reduced contrast (light) ===== */
html.a11y-low-contrast {
    --navy: #3d5678;
    --blue: #5088b8;
    --amber: #d19a3d;
    --amber-hover: #c08a30;
    --text: #4a5568;
    --text-light: #8494a8;
    --bg: #f1efeb;
    --white: #faf9f6;
    --border: #e5e1da;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* Combined dark + reduced contrast */
html.a11y-dark.a11y-low-contrast {
    --navy: #a3b2c9;
    --blue: #7da3d6;
    --text: #c2cbd9;
    --text-light: #8d99ab;
    --bg: #141c2a;
    --white: #1b2538;
    --border: #2c3950;
}

/* ===== Dyslexia-friendly font ===== */
html.a11y-dyslexia-font body,
html.a11y-dyslexia-font button,
html.a11y-dyslexia-font input,
html.a11y-dyslexia-font textarea {
    font-family: 'OpenDyslexic', 'Inter', system-ui, sans-serif;
}

/* ===== Increased spacing ===== */
html.a11y-wide-spacing {
    letter-spacing: 0.08em;
    word-spacing: 0.16em;
}

html.a11y-wide-spacing h1,
html.a11y-wide-spacing h2,
html.a11y-wide-spacing h3 {
    letter-spacing: 0;
}

html.a11y-wide-spacing p,
html.a11y-wide-spacing li,
html.a11y-wide-spacing td {
    line-height: 1.9;
}

/* ===== Reduced motion (manual override) ===== */
html.a11y-reduced-motion *,
html.a11y-reduced-motion *::before,
html.a11y-reduced-motion *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

html.a11y-reduced-motion .fade-in {
    opacity: 1;
    transform: none;
}

/* ===== Reading guide ===== */
.a11y-reading-shade {
    position: fixed;
    left: 0;
    width: 100%;
    background: rgba(9, 16, 28, 0.5);
    pointer-events: none;
    z-index: 9998;
}

html:not(.a11y-reading-guide) .a11y-reading-shade {
    display: none;
}

html.a11y-dark .a11y-reading-shade {
    background: rgba(0, 0, 0, 0.65);
}

/* ===== Trigger button ===== */
.a11y-trigger {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--navy);
    color: #ffffff;
    border: none;
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: background var(--transition), transform var(--transition);
}

html.a11y-dark .a11y-trigger {
    background: #234681;
}

.a11y-trigger:hover {
    background: var(--blue);
    transform: scale(1.05);
}

.a11y-trigger svg {
    width: 24px;
    height: 24px;
}

/* ===== Panel ===== */
.a11y-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    height: 100dvh;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    transform: translateX(105%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.a11y-panel.open {
    transform: translateX(0);
}

@media (max-width: 400px) {
    .a11y-panel {
        width: 100%;
    }
}

.a11y-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.a11y-panel-header h2 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--navy);
    margin: 0;
}

.a11y-panel-close {
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: var(--text-light);
}

.a11y-panel-close:hover {
    background: var(--bg);
    color: var(--text);
}

.a11y-panel-body {
    padding: 8px 24px 32px;
}

.a11y-control-group {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.a11y-control-group:last-child {
    border-bottom: none;
}

.a11y-control-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.a11y-fontsize-controls {
    display: flex;
    gap: 8px;
}

.a11y-fontsize-controls button {
    flex: 1;
    height: 40px;
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    color: var(--text);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.a11y-fontsize-controls button:hover {
    background: var(--bg);
}

.a11y-fontsize-controls button.active {
    background: var(--blue);
    border-color: var(--blue);
    color: #ffffff;
}

html.a11y-dark .a11y-fontsize-controls button.active {
    color: #0b1220;
}

.a11y-fontsize-controls button[data-a11y-fontsize="1"] { font-size: 11px; }
.a11y-fontsize-controls button[data-a11y-fontsize="2"] { font-size: 13px; }
.a11y-fontsize-controls button[data-a11y-fontsize="3"] { font-size: 15px; }
.a11y-fontsize-controls button[data-a11y-fontsize="4"] { font-size: 17px; }
.a11y-fontsize-controls button[data-a11y-fontsize="5"] { font-size: 19px; }

.a11y-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius);
    transition: background var(--transition);
    text-align: left;
}

.a11y-toggle:hover {
    background: var(--bg);
}

.a11y-toggle svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.6;
}

.a11y-toggle-indicator {
    margin-left: auto;
    width: 36px;
    height: 20px;
    border-radius: 10px;
    background: var(--border);
    position: relative;
    flex-shrink: 0;
    transition: background var(--transition);
}

.a11y-toggle-indicator::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #ffffff;
    transition: transform 0.15s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.a11y-toggle[aria-checked="true"] .a11y-toggle-indicator {
    background: var(--blue);
}

.a11y-toggle[aria-checked="true"] .a11y-toggle-indicator::after {
    transform: translateX(16px);
}

.a11y-reset {
    display: block;
    width: 100%;
    padding: 12px;
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    text-align: center;
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition);
}

.a11y-reset:hover {
    color: #dc2626;
    background: rgba(220, 38, 38, 0.06);
}

@media print {
    .a11y-trigger,
    .a11y-panel,
    .a11y-reading-shade {
        display: none !important;
    }
}