/**
 * TDN Accessibility Suite — Toolbar Styles
 * Matches TDN Magazine theme design tokens.
 * Uses CSS custom properties set by PHP for branding.
 *
 * @package TDN_Accessibility
 */

/* ── Utility: screen-reader only ────────────────────────────────────────── */
.tdna-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;
}

/* ── Toolbar wrapper ─────────────────────────────────────────────────────── */
#tdna-toolbar {
    position: fixed;
    z-index: 999990;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    /* Positioned via data-position in JS + CSS below */
}

#tdna-toolbar[data-position="bottom-right"] {
    bottom: 24px;
    right:  24px;
}
#tdna-toolbar[data-position="bottom-left"] {
    bottom: 24px;
    left:   24px;
}

/* ── Side-docked positions ── */
#tdna-toolbar[data-position="right"] {
    top:       50%;
    right:     0;
    transform: translateY(-50%);
}
#tdna-toolbar[data-position="left"] {
    top:       50%;
    left:      0;
    transform: translateY(-50%);
}

/*
 * Vertical trigger button — true writing-mode approach
 *
 * We switch to writing-mode: vertical-rl which rotates ALL content
 * (text + icon) together. flex-direction: column in vertical writing mode
 * means items flow from top to bottom in the rotated space — which gives
 * us a proper vertical pill.
 *
 * Right side:  writing-mode vertical-rl, no extra rotation needed.
 * Left side:   same writing-mode + rotate(180deg) so text reads top→bottom
 *              instead of bottom→top.
 *
 * Tab shape replaces the pill (border-radius on the side facing away from
 * the edge is rounded; the edge side is flat).
 */
#tdna-toolbar[data-position="right"] .tdna-trigger,
#tdna-toolbar[data-position="left"]  .tdna-trigger {
    writing-mode:     vertical-rl;
    text-orientation: mixed;
    flex-direction:   column;        /* reflow items vertically */
    align-items:      center;
    justify-content:  center;
    padding:          18px 10px;
    border-radius:    8px 0 0 8px;   /* flat on right edge, rounded on left */
    white-space:      nowrap;
    min-height:       80px;
    width:            auto;
    height:           auto;
    gap:              8px;
}
/* Right side: flat on the left edge, rounded on the right */
#tdna-toolbar[data-position="right"] .tdna-trigger {
    border-radius: 0 8px 8px 0;
}
/* Left side: rotate so text reads top-to-bottom */
#tdna-toolbar[data-position="left"] .tdna-trigger {
    border-radius: 8px 0 0 8px;
    transform:     rotate(180deg);
}

/* Override the default translateY hover — wrong axis when vertical */
#tdna-toolbar[data-position="right"] .tdna-trigger:hover {
    transform: scale(1.03);
}
#tdna-toolbar[data-position="left"] .tdna-trigger:hover {
    transform: rotate(180deg) scale(1.03);
}
#tdna-toolbar[data-position="right"] .tdna-trigger:active { transform: none; }
#tdna-toolbar[data-position="left"]  .tdna-trigger:active { transform: rotate(180deg); }

/* Trigger text label — stays readable inside writing-mode */
#tdna-toolbar[data-position="right"] .tdna-trigger-text,
#tdna-toolbar[data-position="left"]  .tdna-trigger-text {
    display: block;
}

/* Hidden until JS confirms ready (prevents FOUC) */
#tdna-toolbar:not(.tdna-ready) {
    opacity: 0;
    pointer-events: none;
}
#tdna-toolbar.tdna-ready {
    opacity: 1;
    transition: opacity .2s ease;
}

/* ── Trigger button ──────────────────────────────────────────────────────── */
.tdna-trigger {
    display:         flex;
    align-items:     center;
    gap:             8px;
    padding:         10px 18px 10px 14px;
    background:      var(--tdna-primary, #e51a3e);
    color:           var(--tdna-on-primary, #fff);
    border:          none;
    border-radius:   50px;
    cursor:          pointer;
    font-family:     inherit;
    font-size:       .8125rem;
    font-weight:     600;
    letter-spacing:  .02em;
    white-space:     nowrap;
    box-shadow:      0 4px 16px rgba(229,26,62,.35), 0 1px 4px rgba(0,0,0,.15);
    transition:      background .15s, transform .12s, box-shadow .15s;
    user-select:     none;
}
.tdna-trigger:hover {
    background:  var(--tdna-primary-dark, #b0102d);
    box-shadow:  0 6px 22px rgba(229,26,62,.4), 0 2px 6px rgba(0,0,0,.18);
    transform:   translateY(-1px);
}
.tdna-trigger:active { transform: translateY(0); }
.tdna-trigger:focus-visible {
    outline:        3px solid var(--tdna-on-primary, #fff);
    outline-offset: 3px;
}
.tdna-trigger svg { flex-shrink: 0; }

/* ── Panel ───────────────────────────────────────────────────────────────── */
.tdna-panel {
    position:        absolute;
    bottom:          calc(100% + 12px);
    right:           0;
    width:           340px;
    max-height:      82vh;
    overflow-y:      auto;
    overscroll-behavior: contain;
    background:      var(--tdna-surface, #fff);
    border:          1px solid var(--tdna-border, #e2e2e6);
    border-radius:   12px;
    box-shadow:      var(--tdna-shadow, 0 8px 40px rgba(0,0,0,.18), 0 2px 10px rgba(0,0,0,.10));
    opacity:         0;
    transform:       translateY(8px) scale(.98);
    pointer-events:  none;
    transition:      opacity .18s cubic-bezier(.4,0,.2,1),
                     transform .18s cubic-bezier(.4,0,.2,1);
    transform-origin: bottom right;
}

/* Adjust panel position for bottom-left trigger */
#tdna-toolbar[data-position="bottom-left"] .tdna-panel {
    right:            auto;
    left:             0;
    transform-origin: bottom left;
}

/* Side-docked panel — opens perpendicular to the button */
#tdna-toolbar[data-position="left"] .tdna-panel,
#tdna-toolbar[data-position="right"] .tdna-panel {
    bottom:    auto;
    top:       50%;
    transform: translateY(-50%) translateX(8px) scale(.98);
}
#tdna-toolbar[data-position="left"] .tdna-panel,
#tdna-toolbar[data-position="right"] .tdna-panel {
    transform-origin: center left;
}
#tdna-toolbar[data-position="left"]  .tdna-panel { left: calc(100% + 8px); right: auto; }
#tdna-toolbar[data-position="right"] .tdna-panel { right: calc(100% + 8px); left: auto; }

/* Open state override for side panels */
#tdna-toolbar[data-position="left"]  .tdna-panel.tdna-panel--open,
#tdna-toolbar[data-position="right"] .tdna-panel.tdna-panel--open {
    transform: translateY(-50%) translateX(0) scale(1);
}

.tdna-panel--open {
    opacity:        1;
    transform:      translateY(0) scale(1);
    pointer-events: auto;
}

/* Panel header */
.tdna-panel-header {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    padding:         16px 18px 14px;
    border-bottom:   1px solid var(--tdna-border, #e2e2e6);
    position:        sticky;
    top:             0;
    background:      var(--tdna-surface, #fff);
    z-index:         2;
}
.tdna-panel-title {
    display:      flex;
    align-items:  center;
    gap:          8px;
    margin:       0;
    font-size:    .875rem;
    font-weight:  700;
    color:        var(--tdna-on-surface, #0c0c0c);
    letter-spacing: .01em;
}
.tdna-panel-title svg { color: var(--tdna-primary, #e51a3e); }

.tdna-panel-close {
    display:      flex;
    align-items:  center;
    justify-content: center;
    width:        30px;
    height:       30px;
    background:   transparent;
    border:       1px solid var(--tdna-border, #e2e2e6);
    border-radius: 6px;
    cursor:       pointer;
    color:        var(--tdna-on-surface, #0c0c0c);
    transition:   background .12s, border-color .12s;
    flex-shrink:  0;
}
.tdna-panel-close:hover { background: #f5f5f7; border-color: #c8c8d0; }
.tdna-panel-close:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 2px;
}

/* Panel body */
.tdna-panel-body { padding: 4px 0 0; }

/* Panel footer */
.tdna-panel-footer {
    padding:       14px 18px 16px;
    border-top:    1px solid var(--tdna-border, #e2e2e6);
    background:    var(--tdna-surface, #fff);
    position:      sticky;
    bottom:        0;
    z-index:       2;
    display:       flex;
    align-items:   center;
    justify-content: space-between;
    gap:           12px;
    flex-wrap:     wrap;
}
.tdna-panel-credit {
    margin:     0;
    font-size:  .7rem;
    color:      #999;
    letter-spacing: .01em;
}

/* ── Sections ────────────────────────────────────────────────────────────── */
.tdna-section {
    padding: 14px 18px;
    border-bottom: 1px solid var(--tdna-border, #e2e2e6);
}
.tdna-section:last-of-type { border-bottom: none; }
.tdna-section-title {
    margin:          0 0 12px;
    font-size:       .6875rem;
    font-weight:     700;
    letter-spacing:  .08em;
    text-transform:  uppercase;
    color:           var(--tdna-primary, #e51a3e);
}

/* ── Controls ────────────────────────────────────────────────────────────── */
.tdna-control {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    gap:             12px;
    padding:         7px 0;
}
.tdna-control-label {
    font-size:   .8125rem;
    font-weight: 500;
    color:       var(--tdna-on-surface, #0c0c0c);
    line-height: 1.3;
    flex:        1;
}

/* Toggle switch */
.tdna-toggle {
    position:     relative;
    width:        42px;
    height:       24px;
    background:   #ccc;
    border:       none;
    border-radius: 50px;
    cursor:       pointer;
    flex-shrink:  0;
    padding:      0;
    transition:   background .18s;
}
.tdna-toggle[aria-checked="true"] {
    background: var(--tdna-primary, #e51a3e);
}
.tdna-toggle:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 3px;
}
.tdna-toggle-thumb {
    position:   absolute;
    top:        3px;
    left:       3px;
    width:      18px;
    height:     18px;
    background: #fff;
    border-radius: 50%;
    box-shadow:  0 1px 3px rgba(0,0,0,.2);
    transition:  left .18s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
}
.tdna-toggle[aria-checked="true"] .tdna-toggle-thumb {
    left: calc(100% - 21px);
}

/* Stepper */
.tdna-stepper {
    display:     flex;
    align-items: center;
    gap:         2px;
    flex-shrink: 0;
}
.tdna-step-btn {
    width:        28px;
    height:       28px;
    background:   transparent;
    border:       1px solid var(--tdna-border, #e2e2e6);
    border-radius: 6px;
    cursor:       pointer;
    font-size:    1.1rem;
    font-weight:  600;
    line-height:  1;
    color:        var(--tdna-on-surface, #0c0c0c);
    display:      flex;
    align-items:  center;
    justify-content: center;
    transition:   background .12s, border-color .12s;
    padding:      0;
}
.tdna-step-btn:hover:not(:disabled) {
    background:    var(--tdna-primary, #e51a3e);
    border-color:  var(--tdna-primary, #e51a3e);
    color:         var(--tdna-on-primary, #fff);
}
.tdna-step-btn:disabled { opacity: .35; cursor: not-allowed; }
.tdna-step-btn:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 2px;
}
.tdna-step-val {
    display:     inline-block;
    min-width:   56px;
    text-align:  center;
    font-size:   .75rem;
    font-weight: 600;
    color:       var(--tdna-on-surface, #0c0c0c);
    padding:     0 2px;
    user-select: none;
}

/* Color chip group */
.tdna-chip-group {
    display:   flex;
    flex-wrap: wrap;
    gap:       6px;
    margin-top: 6px;
    width:     100%;
}
.tdna-control[data-feature="color-mode"] {
    flex-wrap: wrap;
    align-items: flex-start;
}
.tdna-chip {
    padding:      5px 10px;
    background:   #f5f5f7;
    border:       1.5px solid var(--tdna-border, #e2e2e6);
    border-radius: 50px;
    cursor:       pointer;
    font-family:  inherit;
    font-size:    .75rem;
    font-weight:  500;
    color:        var(--tdna-on-surface, #0c0c0c);
    transition:   background .12s, border-color .12s, color .12s;
    white-space:  nowrap;
    line-height:  1.4;
}
.tdna-chip--active,
.tdna-chip[aria-checked="true"] {
    background:   var(--tdna-primary, #e51a3e);
    border-color: var(--tdna-primary, #e51a3e);
    color:        var(--tdna-on-primary, #fff);
}
.tdna-chip:hover:not(.tdna-chip--active):not([aria-checked="true"]) {
    border-color: var(--tdna-primary, #e51a3e);
    color:        var(--tdna-primary, #e51a3e);
}
.tdna-chip:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 2px;
}

/* Reset button */
.tdna-reset-btn {
    padding:      7px 14px;
    background:   transparent;
    border:       1.5px solid var(--tdna-border, #e2e2e6);
    border-radius: 6px;
    cursor:       pointer;
    font-family:  inherit;
    font-size:    .75rem;
    font-weight:  600;
    color:        #666;
    transition:   background .12s, border-color .12s, color .12s;
    white-space:  nowrap;
}
.tdna-reset-btn:hover {
    background:   #fff0f0;
    border-color: var(--tdna-primary, #e51a3e);
    color:        var(--tdna-primary, #e51a3e);
}
.tdna-reset-btn:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 2px;
}

/* ── Reading Guide ───────────────────────────────────────────────────────── */
.tdna-reading-guide {
    position:      fixed;
    left:          0;
    right:         0;
    height:        26px;
    background:    rgba(229, 26, 62, .1);
    border-top:    2px solid rgba(229, 26, 62, .4);
    border-bottom: 2px solid rgba(229, 26, 62, .4);
    pointer-events: none;
    z-index:       999980;
    display:       none;
}

/* ── Reading Mask ────────────────────────────────────────────────────────── */
.tdna-reading-mask {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999979;
    pointer-events: none;
}
.tdna-reading-mask--active { display: flex; flex-direction: column; }
.tdna-mask-top,
.tdna-mask-bottom {
    background:  rgba(0,0,0,.5);
    flex-shrink: 0;
    width:       100%;
    transition:  height .05s linear;
}
.tdna-mask-window {
    flex: 1;
    min-height: 96px;
    background: transparent;
}

/* ── Alt-text overlay ────────────────────────────────────────────────────── */
.tdna-alt-wrap {
    position: relative;
    display:  inline-block;
}
.tdna-alt-badge {
    position:     absolute;
    bottom:       0;
    left:         0;
    right:        0;
    background:   rgba(0,0,0,.78);
    color:        #fff;
    font-size:    .7rem;
    font-family:  'Inter', system-ui, sans-serif;
    line-height:  1.3;
    padding:      4px 6px;
    display:      none;
    word-break:   break-word;
    pointer-events: none;
}
.tdna-alt-overlay .tdna-alt-badge { display: block; }

/* ── Color modes — applied to <html> ───────────────────────────────────── */

/*
 * COLOUR MODES — non-transparent logo workaround
 * ─────────────────────────────────────────────────────────────────────────────
 * Strategy: invert the entire page via <html>, then ONLY double-invert the
 * logo image itself (so it snaps back to original colors). Every other part
 * of the header — backgrounds, nav links, search field — inverts along with
 * the rest of the page and looks correct in dark/contrast modes.
 *
 * We previously re-inverted #tdn-header entirely, which correctly preserved
 * the logo but accidentally kept the whole header stuck in light mode. Fixed
 * by targeting only .tdn-hdr-logo img (the actual non-transparent PNG).
 * ─────────────────────────────────────────────────────────────────────────────
 */

/* Dark mode */
html[data-tdna-color="dark"] {
    filter: invert(1) hue-rotate(180deg);
}

/*
 * Re-invert only:
 *   • All <img>, <video>, <iframe>, <canvas> — so photos/embeds look correct
 *   • .tdn-hdr-logo img — the non-transparent logo PNG only (header chrome still darkens)
 *   • #tdna-toolbar — so the accessibility panel stays in light mode
 */
html[data-tdna-color="dark"] img,
html[data-tdna-color="dark"] video,
html[data-tdna-color="dark"] iframe,
html[data-tdna-color="dark"] canvas,
html[data-tdna-color="dark"] svg image,
html[data-tdna-color="dark"] .tdn-hdr-logo img,
html[data-tdna-color="dark"] #tdna-toolbar {
    filter: invert(1) hue-rotate(180deg);
}

/* High contrast */
html[data-tdna-color="high-contrast"] {
    filter: contrast(1.65) brightness(1.05);
}
/* Re-invert only the logo image — header chrome keeps the contrast boost */
html[data-tdna-color="high-contrast"] .tdn-hdr-logo img {
    filter: contrast(0.61) brightness(0.95);
}

/* Low saturation */
html[data-tdna-color="low-saturation"] {
    filter: saturate(.25);
}

/* Warm tint */
html[data-tdna-color="warm"] {
    filter: sepia(.18) saturate(1.1) brightness(1.02);
}

/* Sepia */
html[data-tdna-color="sepia"] {
    filter: sepia(.72) saturate(1.1) brightness(1.04);
}
/* Lightly counteract sepia on the logo so brand colors don't brown */
html[data-tdna-color="sepia"] .tdn-hdr-logo img {
    filter: sepia(.22) saturate(1.05) brightness(1.01);
}

/* ── CSS variable-driven text adjustments ────────────────────────────────── */
[data-tdna-fontsize] body,
[data-tdna-fontsize] * {
    font-size: calc(1em * (var(--tdna-font-scale, 100%) / 100)) !important;
}

/* Override font-scale approach: use root font-size scaling instead */
html[data-tdna-fontsize] {
    font-size: var(--tdna-font-scale, 100%);
}

html[data-tdna-lh] body,
html[data-tdna-lh] p,
html[data-tdna-lh] li,
html[data-tdna-lh] td,
html[data-tdna-lh] th {
    line-height: var(--tdna-line-height, inherit) !important;
}

html[data-tdna-ls] body,
html[data-tdna-ls] p,
html[data-tdna-ls] h1, html[data-tdna-ls] h2,
html[data-tdna-ls] h3, html[data-tdna-ls] h4,
html[data-tdna-ls] li {
    letter-spacing: var(--tdna-letter-spacing, inherit) !important;
}

html[data-tdna-ws] body,
html[data-tdna-ws] p,
html[data-tdna-ws] li {
    word-spacing: var(--tdna-word-spacing, inherit) !important;
}

/* ── Dyslexia font ───────────────────────────────────────────────────────── */
html.tdna-dyslexia,
html.tdna-dyslexia body,
html.tdna-dyslexia p,
html.tdna-dyslexia li,
html.tdna-dyslexia h1, html.tdna-dyslexia h2,
html.tdna-dyslexia h3, html.tdna-dyslexia h4,
html.tdna-dyslexia h5, html.tdna-dyslexia h6,
html.tdna-dyslexia a, html.tdna-dyslexia span,
html.tdna-dyslexia button, html.tdna-dyslexia input,
html.tdna-dyslexia label {
    /* OpenDyslexic is open-source. Load via Google Fonts or host locally.
       Falls back gracefully to system fonts with wide letter spacing. */
    font-family: 'OpenDyslexic', 'Comic Sans MS', 'Trebuchet MS', sans-serif !important;
    letter-spacing: .05em !important;
    word-spacing:   .15em !important;
    line-height:    1.8 !important;
}

/* ── Invert images ───────────────────────────────────────────────────────── */
html.tdna-invert-images img,
html.tdna-invert-images video,
html.tdna-invert-images figure img {
    filter: invert(1);
}

/* ── Highlight links ─────────────────────────────────────────────────────── */
html.tdna-highlight-links a,
html.tdna-highlight-links a:visited {
    color:           #0044cc !important;
    text-decoration: underline !important;
    text-underline-offset: 3px !important;
    outline:         1px solid transparent;
    background:      rgba(0,68,204,.06);
    border-radius:   2px;
    padding:         0 1px;
}
html.tdna-highlight-links a:hover {
    background: rgba(0,68,204,.14);
}

/* ── Highlight headings ──────────────────────────────────────────────────── */
html.tdna-highlight-headings h1,
html.tdna-highlight-headings h2,
html.tdna-highlight-headings h3,
html.tdna-highlight-headings h4,
html.tdna-highlight-headings h5,
html.tdna-highlight-headings h6 {
    outline:          2px dashed var(--tdna-primary, #e51a3e) !important;
    outline-offset:   3px;
    border-radius:    2px;
}

/* ── Large cursor ────────────────────────────────────────────────────────── */
html.tdna-large-cursor,
html.tdna-large-cursor * {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M8 4l16 12-7 1-4 9L8 4z' fill='%23000' stroke='%23fff' stroke-width='1.5'/%3E%3C/svg%3E") 8 4, auto !important;
}

/* ── Focus ring off ──────────────────────────────────────────────────────── */
html.tdna-focus-off :focus-visible {
    outline: none !important;
}

/* ── Reduce motion ───────────────────────────────────────────────────────── */
html.tdna-reduce-motion *,
html.tdna-reduce-motion *::before,
html.tdna-reduce-motion *::after {
    animation-duration:   .001s !important;
    animation-delay:      0s !important;
    transition-duration:  .001s !important;
    transition-delay:     0s !important;
    scroll-behavior:      auto !important;
}

/* ── Pause animations ────────────────────────────────────────────────────── */
html.tdna-pause-anims *,
html.tdna-pause-anims *::before,
html.tdna-pause-anims *::after {
    animation-play-state: paused !important;
}

/* ── Hide images ─────────────────────────────────────────────────────────── */
html.tdna-hide-images img,
html.tdna-hide-images figure,
html.tdna-hide-images picture,
html.tdna-hide-images video {
    visibility: hidden !important;
}

/* ── Scrollbar for panel ─────────────────────────────────────────────────── */
.tdna-panel::-webkit-scrollbar { width: 6px; }
.tdna-panel::-webkit-scrollbar-track { background: transparent; }
.tdna-panel::-webkit-scrollbar-thumb {
    background:    var(--tdna-border, #e2e2e6);
    border-radius: 3px;
}
.tdna-panel::-webkit-scrollbar-thumb:hover {
    background: #bbb;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 400px) {
    .tdna-panel {
        width:  calc(100vw - 24px);
        right:  0;
        left:   0;
        margin: 0 12px;
    }
    #tdna-toolbar[data-position="bottom-right"],
    #tdna-toolbar[data-position="bottom-left"] {
        right:  12px;
        left:   auto;
        bottom: 12px;
    }
    /* Collapse side docks to bottom-right on very small screens */
    #tdna-toolbar[data-position="left"],
    #tdna-toolbar[data-position="right"] {
        top:       auto;
        bottom:    12px;
        right:     12px;
        left:      auto;
        transform: none;
    }
    #tdna-toolbar[data-position="left"]  .tdna-trigger,
    #tdna-toolbar[data-position="right"] .tdna-trigger {
        writing-mode:  horizontal-tb;
        border-radius: 50px;
        padding:       10px 18px 10px 14px;
        transform:     none !important;
    }
    #tdna-toolbar[data-position="left"]  .tdna-panel,
    #tdna-toolbar[data-position="right"] .tdna-panel {
        top:       auto;
        bottom:    calc(100% + 12px);
        right:     0;
        left:      auto;
        transform: translateY(8px) scale(.98);
    }
    #tdna-toolbar[data-position="left"]  .tdna-panel.tdna-panel--open,
    #tdna-toolbar[data-position="right"] .tdna-panel.tdna-panel--open {
        transform: translateY(0) scale(1);
    }
}

/* ── Print ───────────────────────────────────────────────────────────────── */
@media print {
    #tdna-toolbar,
    .tdna-reading-guide,
    .tdna-reading-mask,
    .tdna-skip-links {
        display: none !important;
    }
}

/* ── prefers-reduced-motion: respect OS by default ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .tdna-panel,
    .tdna-trigger,
    .tdna-toggle,
    .tdna-toggle-thumb {
        transition: none !important;
    }
}

/* ══════════════════════════════════════════════════════════════════════════
   TTS — Audio Player Card
   ══════════════════════════════════════════════════════════════════════════ */

/* Section overrides for the TTS card */
.tdna-section--tts {
    padding-bottom: 18px;
}

/* Notices */
.tdna-tts-notice {
    font-size:    .775rem;
    line-height:  1.5;
    padding:      9px 12px;
    border-radius: 6px;
    margin-bottom: 12px;
}
.tdna-tts-notice--warn {
    background: #fff8ed;
    border:     1px solid #f5c97a;
    color:      #7a5200;
}
.tdna-tts-notice--info {
    background: #eef4ff;
    border:     1px solid #b3ccf5;
    color:      #1a3a6e;
}

/* Player card */
.tdna-player {
    background:    linear-gradient(145deg, #fafafa 0%, #f3f3f5 100%);
    border:        1px solid var(--tdna-border, #e2e2e6);
    border-radius: 10px;
    padding:       14px 14px 16px;
    margin-top:    4px;
}

/* ── Waveform visualiser ─────────────────────────────────────────────────── */
.tdna-wave {
    display:         flex;
    align-items:     flex-end;
    justify-content: center;
    gap:             3px;
    height:          28px;
    margin-bottom:   12px;
}
.tdna-wave-bar {
    display:       block;
    width:         3px;
    border-radius: 2px;
    background:    var(--tdna-border, #e2e2e6);
    transition:    background .3s;
    /* Static "idle" heights — give it a pre-set waveform look */
}
.tdna-wave-bar:nth-child(1) { height: 8px; }
.tdna-wave-bar:nth-child(2) { height: 16px; }
.tdna-wave-bar:nth-child(3) { height: 22px; }
.tdna-wave-bar:nth-child(4) { height: 14px; }
.tdna-wave-bar:nth-child(5) { height: 22px; }
.tdna-wave-bar:nth-child(6) { height: 18px; }
.tdna-wave-bar:nth-child(7) { height: 12px; }
.tdna-wave-bar:nth-child(8) { height: 7px; }

/* Animated state — bars bounce when playing */
.tdna-wave-bar.tdna-wave--active {
    background: var(--tdna-primary, #e51a3e);
    animation:  tdna-wave-bounce .7s ease-in-out infinite alternate;
}
.tdna-wave-bar.tdna-wave--active:nth-child(2) { animation-delay: .1s; }
.tdna-wave-bar.tdna-wave--active:nth-child(3) { animation-delay: .2s; }
.tdna-wave-bar.tdna-wave--active:nth-child(4) { animation-delay: .05s; }
.tdna-wave-bar.tdna-wave--active:nth-child(5) { animation-delay: .15s; }
.tdna-wave-bar.tdna-wave--active:nth-child(6) { animation-delay: .25s; }
.tdna-wave-bar.tdna-wave--active:nth-child(7) { animation-delay: .1s; }
.tdna-wave-bar.tdna-wave--active:nth-child(8) { animation-delay: .3s; }

@keyframes tdna-wave-bounce {
    from { transform: scaleY(.4); }
    to   { transform: scaleY(1.6); }
}

/* ── Progress bar ────────────────────────────────────────────────────────── */
.tdna-player-bar {
    display:     flex;
    align-items: center;
    gap:         8px;
    margin-bottom: 10px;
}
.tdna-player-bar-track {
    flex:          1;
    height:        4px;
    background:    var(--tdna-border, #e2e2e6);
    border-radius: 2px;
    overflow:      hidden;
}
.tdna-player-bar-fill {
    height:     100%;
    width:      0%;
    background: var(--tdna-primary, #e51a3e);
    border-radius: 2px;
    transition: width .4s ease;
}
.tdna-player-bar-label {
    font-size:   .68rem;
    font-weight: 600;
    color:       #999;
    white-space: nowrap;
    min-width:   36px;
    text-align:  right;
}

/* ── Ticker ──────────────────────────────────────────────────────────────── */
.tdna-player-ticker {
    min-height:    36px;
    margin-bottom: 14px;
    padding:       8px 10px;
    background:    #fff;
    border:        1px solid var(--tdna-border, #e2e2e6);
    border-left:   3px solid var(--tdna-primary, #e51a3e);
    border-radius: 0 6px 6px 0;
    display:       flex;
    flex-direction: column;
    gap:           2px;
    opacity:       .5;
    transition:    opacity .25s;
}
.tdna-player-ticker.tdna-tts--active {
    opacity: 1;
}
.tdna-player-ticker-eyebrow {
    font-size:   .6rem;
    font-weight: 700;
    letter-spacing: .07em;
    text-transform: uppercase;
    color:       var(--tdna-primary, #e51a3e);
    line-height: 1;
}
.tdna-player-ticker-text {
    font-size:   .775rem;
    line-height: 1.45;
    color:       #444;
    display:     -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow:    hidden;
}

/* ── Transport controls ──────────────────────────────────────────────────── */
.tdna-player-transport {
    display:         flex;
    align-items:     center;
    justify-content: center;
    gap:             10px;
    margin-bottom:   16px;
}

/* Small secondary buttons (restart / stop) */
.tdna-transport-btn--sm {
    width:        36px;
    height:       36px;
    border-radius: 50%;
    border:       1.5px solid var(--tdna-border, #e2e2e6);
    background:   #fff;
    color:        #555;
    display:      flex;
    align-items:  center;
    justify-content: center;
    cursor:       pointer;
    transition:   background .14s, border-color .14s, color .14s, transform .1s;
    flex-shrink:  0;
    padding:      0;
}
.tdna-transport-btn--sm:hover:not(:disabled) {
    background:   var(--tdna-primary, #e51a3e);
    border-color: var(--tdna-primary, #e51a3e);
    color:        #fff;
    transform:    scale(1.08);
}
.tdna-transport-btn--sm:disabled {
    opacity: .35;
    cursor:  not-allowed;
}
.tdna-transport-btn--sm:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 3px;
}

/* Main play/pause button */
.tdna-transport-btn--play {
    width:        52px;
    height:       52px;
    border-radius: 50%;
    background:   var(--tdna-primary, #e51a3e);
    border:       none;
    color:        #fff;
    display:      flex;
    align-items:  center;
    justify-content: center;
    cursor:       pointer;
    box-shadow:   0 4px 14px rgba(229,26,62,.4);
    transition:   background .14s, transform .12s, box-shadow .14s;
    flex-shrink:  0;
    padding:      0;
    position:     relative;
}
.tdna-transport-btn--play:hover {
    background:   var(--tdna-primary-dark, #b0102d);
    transform:    scale(1.06);
    box-shadow:   0 6px 20px rgba(229,26,62,.5);
}
.tdna-transport-btn--play:active { transform: scale(.97); }
.tdna-transport-btn--play:focus-visible {
    outline:        3px solid var(--tdna-primary, #e51a3e);
    outline-offset: 4px;
}

/* Icon visibility driven by data-state attribute */
.tdna-transport-btn--play .tdna-icon-play  { display: block; }
.tdna-transport-btn--play .tdna-icon-pause { display: none;  }
.tdna-transport-btn--play[data-state="playing"] .tdna-icon-play  { display: none;  }
.tdna-transport-btn--play[data-state="playing"] .tdna-icon-pause { display: block; }

/* ── Options panel ───────────────────────────────────────────────────────── */
.tdna-player-options {
    display:        flex;
    flex-direction: column;
    gap:            10px;
    padding-top:    4px;
    border-top:     1px solid var(--tdna-border, #e2e2e6);
}
.tdna-player-option {
    display:     flex;
    align-items: center;
    gap:         10px;
}
.tdna-player-option-label {
    font-size:   .72rem;
    font-weight: 700;
    color:       #777;
    letter-spacing: .04em;
    text-transform: uppercase;
    min-width:   40px;
    flex-shrink: 0;
}

/* Voice select */
.tdna-select-wrap {
    position: relative;
    flex:      1;
}
.tdna-player-select {
    width:        100%;
    padding:      6px 28px 6px 10px;
    border:       1.5px solid var(--tdna-border, #e2e2e6);
    border-radius: 6px;
    font-family:  inherit;
    font-size:    .75rem;
    background:   #fff;
    color:        var(--tdna-on-surface, #0c0c0c);
    cursor:       pointer;
    appearance:   none;
    outline:      none;
    transition:   border-color .12s, box-shadow .12s;
}
.tdna-player-select:focus {
    border-color: var(--tdna-primary, #e51a3e);
    box-shadow:   0 0 0 2px rgba(229,26,62,.14);
}
.tdna-select-caret {
    position:       absolute;
    right:          9px;
    top:            50%;
    transform:      translateY(-50%);
    pointer-events: none;
    color:          #999;
}

/* Speed / Pitch sliders */
.tdna-slider-row {
    display:     flex;
    align-items: center;
    gap:         8px;
    flex:        1;
}
.tdna-player-slider {
    flex:         1;
    height:       4px;
    accent-color: var(--tdna-primary, #e51a3e);
    cursor:       pointer;
    -webkit-appearance: none;
    appearance:   none;
    background:   var(--tdna-border, #e2e2e6);
    border-radius: 2px;
    outline:      none;
}
.tdna-player-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance:   none;
    width:        14px;
    height:       14px;
    border-radius: 50%;
    background:   var(--tdna-primary, #e51a3e);
    cursor:       pointer;
    box-shadow:   0 1px 4px rgba(229,26,62,.4);
    transition:   transform .1s;
}
.tdna-player-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.tdna-player-slider:focus-visible {
    outline:        2px solid var(--tdna-primary, #e51a3e);
    outline-offset: 3px;
}
.tdna-slider-val {
    font-size:   .72rem;
    font-weight: 700;
    color:       var(--tdna-primary, #e51a3e);
    min-width:   30px;
    text-align:  right;
    font-variant-numeric: tabular-nums;
}

/* Highlight paragraph currently being spoken */
.tdna-tts-reading {
    background:      rgba(229,26,62,.07) !important;
    outline:         2px solid rgba(229,26,62,.3) !important;
    outline-offset:  3px !important;
    border-radius:   3px !important;
    scroll-margin-top: 140px;
}

/* Reduce-motion: disable wave animation */
@media (prefers-reduced-motion: reduce) {
    .tdna-wave-bar.tdna-wave--active {
        animation: none;
        background: var(--tdna-primary, #e51a3e);
    }
}