/* ToneWick 1.5.7: an in-page reading desk. Controls use stable CSS-pixel
   geometry; only reading content and supporting copy receive size settings. */
:root {--control-font:Inter,ui-sans-serif,system-ui,"Noto Sans TC","Noto Sans SC",sans-serif}
body {padding-bottom:0}
.topbar {min-height:76px;height:auto;padding:12px max(24px,calc((100vw - 1400px)/2));gap:18px;flex-wrap:nowrap;font:14px/1.4 var(--control-font)}
.brand {gap:10px;flex-wrap:nowrap;font-size:24px;letter-spacing:-.04em}
.brand-mark {width:38px;height:42px;font-size:28px;border-radius:10px 10px 10px 3px}
.brand-sub {font-size:8px;letter-spacing:.14em;margin-top:3px}
.brand-chinese {width:100px;height:46px}
.header-actions {flex-wrap:nowrap;gap:8px}
.header-actions button {height:40px;padding:7px 12px;font:500 13px/1.3 var(--control-font);white-space:nowrap}
.header-actions .icon-button {width:40px;padding:0;font-size:21px}
.header-actions .count {font-size:10px;margin-left:3px}
.shell {padding:14px 24px 0;max-width:1448px}
.intro {display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:0 0 14px}
.intro h1 {font:600 18px/1.4 var(--control-font);letter-spacing:-.02em;margin:0}
.intro-copy {font:13px/1.5 var(--control-font);margin:0}
.notice {font:13px/1.5 var(--control-font);margin:0 0 12px;padding:9px 12px}
.workspace {grid-template-columns:minmax(0,1fr) 304px;gap:16px;align-items:start}
.reader-controls {grid-column:1/-1;min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--raised);padding:12px;font:14px/1.4 var(--control-font);contain:layout style;scroll-margin-top:16px}
.reader-controls:focus,.settings-panel:focus {outline:2px solid var(--complement);outline-offset:3px}
.transport-row {display:grid;grid-template-columns:152px minmax(140px,1fr) 230px 166px;gap:18px;align-items:center;padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line)}
.reader-controls .playback-controls {display:flex;grid-column:auto;grid-row:auto;gap:6px;justify-content:start;align-items:center}
.reader-controls button {font:550 14px/1.2 var(--control-font);transition:background .12s,border-color .12s}
.reader-controls .play {width:104px;min-width:104px;height:44px;display:flex;justify-content:center;align-items:center;gap:8px;padding:0;border-radius:9px}
.reader-controls .icon-button {width:42px;height:44px;padding:0;font-size:14px;border-radius:9px}
.playback-progress {min-width:0}
.playback-progress span {display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:12px/1.5 var(--control-font);color:var(--muted);margin-bottom:8px}
.playback-progress progress {height:4px;width:100%}
.pace-control {display:grid;grid-template-columns:1fr;gap:0;min-width:0}
.pace-control label {display:flex;justify-content:space-between;gap:8px;font:12px/1.3 var(--control-font)}
.pace-control output {font:12px/1.3 ui-monospace,monospace;width:42px;flex:none;text-align:right}
.pace-control input[type=range] {display:block;margin:2px 0;height:20px;width:100%}
.pace-control #rate-note {font:11px/1.3 var(--control-font);color:var(--muted)}
.reader-controls .settings-toggle {font:550 12px/1.4 var(--control-font);justify-self:end;width:156px;height:42px;padding:8px;white-space:nowrap}
.settings-toggle:hover,.back-to-controls:hover {text-decoration:underline;text-underline-offset:3px}
.format-row {display:grid;grid-template-columns:minmax(152px,1.2fr) minmax(214px,1.6fr) repeat(4,minmax(128px,1fr));gap:12px;align-items:end}
.format-choice {min-width:0;display:flex;flex-direction:column;gap:5px;font:12px/1.3 var(--control-font);color:var(--muted)}
.format-choice select {height:42px;min-height:42px;padding:7px 8px;font:13px/1.3 var(--control-font);width:100%}
.reader-controls .size-control {width:100%;gap:5px;align-items:stretch;justify-self:stretch}
.reader-controls .size-label {font:12px/1.3 var(--control-font);color:var(--muted);text-align:left;letter-spacing:0}
.reader-controls .zoom {display:grid;grid-template-columns:40px minmax(36px,1fr) 40px;align-items:center;gap:0;width:100%;height:42px;padding:0;border:1px solid var(--line);background:var(--surface);border-radius:8px;flex:none}
.reader-controls .zoom button {width:40px;height:40px;min-height:40px;padding:0;border:0;border-radius:7px;background:transparent;font:22px/1 var(--control-font);display:grid;place-items:center}
.reader-controls .zoom button:hover:not(:disabled) {background:var(--glow)}
.reader-controls .zoom output {width:100%;min-width:0;font:12px/1 ui-monospace,monospace;font-variant-numeric:tabular-nums;text-align:center}
.book-panel {grid-column:1;grid-row:2;border-radius:12px;box-shadow:none}
.book-top {padding:16px 20px;gap:10px;align-items:center;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.book-top>div {flex:1 1 240px;min-width:0}
.book-top h2 {font-size:calc(19px * var(--ui-scale));line-height:1.25;margin:0 0 4px;overflow-wrap:anywhere}
.book-top button {min-height:38px;font-size:13px;padding:7px 10px}
.book-top .small {font-size:calc(11px * var(--ui-scale));line-height:1.4}
.reader {padding:14px 20px 22px;min-height:0;line-height:1.4;scroll-margin-top:16px;overflow-anchor:none}
.reader .glyph {margin-bottom:.14em;scroll-margin:24px}
.legend {padding:10px 20px 0;min-height:0;font-size:calc(9px * var(--ui-scale))}
.legend-group {gap:5px 10px;margin:4px 0}
.legend-group-title {font-size:inherit}
.page-bar {padding:10px 20px}
.book-bottom {padding:10px 20px;gap:10px}
.script-note {padding:0 20px 12px;font-size:calc(10px * var(--ui-scale));line-height:1.5}
.settings-panel {grid-column:2;grid-row:2;display:block;padding:14px;border-radius:12px;min-width:0;scroll-margin-top:16px;font:14px/1.5 var(--control-font)}
.settings-panel .panel-heading {display:block;margin-bottom:0}
.settings-panel .panel-heading h2 {font:650 15px/1.4 var(--control-font);letter-spacing:0;margin:0}
.back-to-controls {display:none;font:12px/1.4 var(--control-font);text-decoration:none}
.settings-panel section {padding:14px 0;margin:0;border-bottom:1px solid var(--line)}
.settings-panel section:first-of-type {padding-top:12px}
.settings-panel h3 {font:600 13px/1.4 var(--control-font);color:var(--accent);margin:0 0 9px;letter-spacing:.02em}
.settings-panel .field-label {font:500 12px/1.4 var(--control-font);margin:10px 0 5px}
.settings-panel .field-label:first-of-type {margin-top:0}
.settings-panel select {min-height:38px;font:13px/1.35 var(--control-font);padding:7px 8px}
.settings-panel .check {font:12px/1.5 var(--control-font);gap:8px;align-items:center;margin:10px 0 0}
.settings-panel .check input {width:18px;height:18px;margin:0;flex:none}
.settings-panel .micro {font:11px/1.5 var(--control-font);margin:6px 0 0;overflow-wrap:anywhere}
.settings-panel .text-button {font:12px/1.4 var(--control-font);margin-top:9px;padding:2px 0}
.settings-panel .full-button {width:100%;font:550 12px/1.4 var(--control-font);min-height:38px;margin:12px 0 0;padding:7px}
.settings-panel #custom-font {font:13px/1.5 var(--control-font)}
.settings-panel .font-live-preview {font-size:24px;line-height:1.5;min-height:0;padding:10px;margin:8px 0;white-space:normal}
.settings-panel #tint-name {display:block;font:11px/1.5 var(--control-font);color:var(--muted);margin-top:3px}
.settings-panel .tint-grid {gap:5px;margin-top:8px}
.settings-panel .tint {height:29px;border-width:3px}
.tone-reference {font:11px/1.5 var(--control-font);margin:10px 0 0;color:var(--muted)}
.tone-reference summary {cursor:pointer;padding:4px 0}
.tone-card {font:11px/1.4 var(--control-font);padding:3px 6px;gap:8px}
.site-summary {max-width:none;margin:24px 0 0;padding:20px 0;font-size:calc(12px * var(--ui-scale));line-height:1.65}
.site-summary h2 {font-size:calc(17px * var(--ui-scale));margin-bottom:10px}
.site-summary p {margin:0 0 10px}
.public-nav {gap:8px 20px;margin-top:14px}
.site-footer {padding:14px 0;font-size:calc(10px * var(--ui-scale))}
.site-footer .contact-link {color:var(--accent);text-underline-offset:.2em;overflow-wrap:anywhere}
.toast {bottom:16px}
@media(max-width:1140px) {
 .format-row {grid-template-columns:repeat(4,minmax(0,1fr))}
 .format-choice {grid-column:span 2}
 .transport-row {grid-template-columns:152px minmax(100px,1fr) 210px 158px;gap:14px}
 .workspace {grid-template-columns:minmax(0,1fr) 284px}
 .brand-chinese {width:84px}
}
@media(max-width:850px) {
 .topbar {padding:12px 16px;gap:12px;flex-wrap:wrap}
 .shell {padding:12px 16px 0}
 .intro-copy {display:none}
 .workspace {grid-template-columns:minmax(0,1fr)}
 .settings-panel {grid-column:1;grid-row:2;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}
 .settings-panel .panel-heading {grid-column:1/-1;display:flex;justify-content:space-between;gap:12px}
 .back-to-controls {display:inline-block}
 .settings-panel>button {justify-self:start}
 .transport-row {grid-template-columns:152px minmax(100px,1fr) 200px;gap:12px}
 .reader-controls .settings-toggle {grid-column:2/4;grid-row:2;justify-self:end;padding:0;margin-top:-4px}
 .pace-control {grid-column:3;grid-row:1}
}
@media(max-width:600px) {
 .topbar {gap:10px;align-items:center}
 .brand {display:flex;width:auto;gap:8px;font-size:22px}
 .brand-mark {width:34px;height:38px;font-size:26px;grid-row:auto}
 .brand-chinese {width:78px;height:38px;grid-column:auto}
 .brand-sub {font-size:7px;letter-spacing:.12em}
 .header-actions {width:100%;gap:6px;display:grid;grid-template-columns:1fr 1.15fr 1.2fr 38px}
 .header-actions button {padding:6px;font-size:12px;height:38px}
 .header-actions .icon-button {width:38px;height:38px;font-size:20px}
 .shell {padding:10px 12px 0}
 .intro {margin-bottom:10px;gap:0}
 .intro h1 {font-size:15px}
 .reader-controls {padding:10px;border-radius:10px}
 .transport-row {grid-template-columns:148px minmax(0,1fr);gap:10px;margin-bottom:10px;padding-bottom:10px}
 .reader-controls .playback-controls {gap:4px}
 .reader-controls .play {width:102px;min-width:102px}
 .playback-progress span {font-size:11px}
 .pace-control {grid-row:2;grid-column:1/-1;padding-right:0}
 .reader-controls .settings-toggle {grid-column:1/-1;grid-row:3;justify-self:start;margin:0;padding:0;font-size:12px}
 .format-row {grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .format-choice {grid-column:span 1;font-size:11px}
 .format-choice select {font-size:12px;padding:7px 5px}
 .reader-controls .size-label {font-size:11px}
 .book-top {padding:12px;gap:8px}
 .book-top>div {flex-basis:100%}
 .book-top h2 {font-size:calc(17px * var(--ui-scale))}
 .book-top button {font-size:12px;min-height:36px;padding:6px 9px}
 .reader {padding:12px 14px 18px}
 .legend {padding:8px 12px 0;font-size:11px}
 .page-bar {padding:10px 12px}
 .page-bar button {font-size:12px}
 .book-bottom {padding:10px 12px;font-size:11px;flex-direction:column;align-items:start}
 .book-bottom .text-button {font-size:12px}
 .script-note {padding:0 12px 10px;font-size:11px}
 .settings-panel {display:block;padding:12px}
 .settings-panel .panel-heading {display:flex;align-items:center}
 .site-summary {margin-top:18px;padding-top:16px}
 .site-footer {gap:10px;flex-wrap:wrap}
}
@media print {
 .reader-controls,.settings-panel {display:none}
 .workspace {display:block}
 .reader {overflow:visible}
}

/* Compact labels retain their complete accessible descriptions in the key. */
.legend {display:flex;flex-wrap:wrap;column-gap:20px;row-gap:3px}
.legend .legend-heading {width:auto;flex:none;font-size:inherit;letter-spacing:0;text-transform:none}
.legend-group {margin:0;gap:6px 9px}
@media(max-width:600px) {
 .header-actions {grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.1fr) 38px}
 .header-actions button {min-width:0;padding:6px 4px}
 .transport-row {grid-template-columns:148px minmax(0,1fr);gap:8px}
 .pace-control {grid-column:2;grid-row:1}
 .pace-control label {font-size:11px;white-space:nowrap;gap:4px}
 .pace-control #rate-note {font-size:10px;white-space:nowrap}
 .playback-progress {grid-column:1;grid-row:2}
 .playback-progress span {margin-bottom:4px}
 .reader-controls .settings-toggle {grid-column:2;grid-row:2;justify-self:end;width:100%;max-width:156px;font-size:11px;padding:6px 2px;margin:0;white-space:nowrap;text-align:center}
 .book-top h2 {font-size:calc(16px * var(--ui-scale))}
 .book-top .small {font-size:12px}
 .legend {gap:6px;padding-top:10px}
 .legend-group {width:100%;gap:5px 8px}
}

@media(max-width:360px) {
 .transport-row {grid-template-columns:130px minmax(0,1fr)}
 .reader-controls .play {width:88px;min-width:88px}
 .reader-controls .icon-button {width:38px}
}

/* One transport, attached to the page edge only while audio is active. The
   larger format rows scroll above it. No detached pill or duplicate buttons. */
.reader-controls {position:relative;overflow-anchor:none}
.reader-controls[data-playback=playing],.reader-controls[data-playback=paused] {
 position:sticky;top:calc(-1 * var(--before-transport,0px));z-index:20;
}
.transport-row {padding-bottom:0;margin-bottom:0;border-bottom:0;border-top:1px solid var(--line);padding-top:12px;margin-top:12px}
.follow-control {display:flex;align-items:center;gap:6px;margin-top:6px;font:11px/1.3 var(--control-font);white-space:nowrap;color:var(--text)}
.follow-control input {width:16px;height:16px;margin:0;accent-color:var(--accent)}
@media(max-width:600px) {.transport-row {padding-top:10px;margin-top:10px}}
@media print {.reader-controls {display:none!important}}

/* Vocabulary levels are reading information, with legible supporting type. */
.legend {font-size:calc(12px * var(--ui-scale));line-height:1.6}
.legend-group {gap:8px 14px}
.legend-item {white-space:nowrap}
.legend-underline {width:20px}

/* Collapsing settings gives the article its entire column back. The one toggle
   remains in the transport; there is no overlay, animated reflow or extra dock. */
.workspace[data-settings=closed] {grid-template-columns:minmax(0,1fr)}
.settings-toggle[aria-expanded=true] {background:var(--glow);border-color:var(--accent)}
@media(max-width:850px) {
 .workspace[data-settings=open] .book-panel {grid-row:3}
 .workspace[data-settings=closed] .book-panel {grid-row:2}
}