:root {
    --font-size: 21px; --line-height: 1.85; --content-width: 700px; --side-margin: 24px;
    --paragraph-spacing: 1.3em; --reader-font: Georgia, serif; --text-align: left; --focus-pos: 35%; --brightness: 1;
}
:root[data-reader-theme="paper"] { --bg: #f8f5ed; --surface: #fffcf4; --ink: #403e34; --muted: #777364; --line: #e4dfd0; --accent: #666f4c; --accent-hover: #48533a; --accent-soft: #eceedd; color-scheme: light; }
:root[data-reader-theme="light"] { --bg: #fff; --surface: #fff; --ink: #303438; --muted: #71767c; --line: #e6e9e9; --accent: #486458; --accent-soft: #eaf0ed; color-scheme: light; }
:root[data-reader-theme="sepia"] { --bg: #eee0c5; --surface: #f7eace; --ink: #594731; --muted: #7b694f; --line: #d6c4a3; --accent: #805c37; --accent-hover: #674727; --accent-soft: #e6d8b9; color-scheme: light; }
:root[data-reader-theme="dark"] { --bg: #242625; --surface: #303330; --ink: #d8ddd3; --muted: #a4ad9e; --line: #454b43; --accent: #b0be9c; --accent-hover: #c7d3b7; --accent-soft: #3b4534; color-scheme: dark; }
:root[data-reader-theme="oled"] { --bg: #000; --surface: #111; --ink: #d9d9d5; --muted: #969991; --line: #30312e; --accent: #b6c9a7; --accent-hover: #d2e1c6; --accent-soft: #20261c; color-scheme: dark; }
:root[data-reader-theme="midnight"] { --bg: #111c2d; --surface: #1b293e; --ink: #cfd9e9; --muted: #8fa3be; --line: #2b3d55; --accent: #a9c3e0; --accent-hover: #c3d8f0; --accent-soft: #293b52; color-scheme: dark; }
:root[data-reader-theme="forest"] { --bg: #182b25; --surface: #233b31; --ink: #d5e0c9; --muted: #9daf97; --line: #385246; --accent: #c3d7a8; --accent-hover: #dae8c7; --accent-soft: #344b36; color-scheme: dark; }
.reader-page { height: 100dvh; overflow: hidden; background: var(--bg); color: var(--ink); }
#reader-viewport { position: absolute; inset: 0; overflow-y: auto; overflow-x: hidden; scrollbar-width: thin; scrollbar-color: var(--line) transparent; overflow-anchor: none; overscroll-behavior: contain; }
#reader-content { box-sizing: content-box; max-width: var(--content-width); padding: 120px var(--side-margin) 80vh; margin: auto; font: var(--font-size)/var(--line-height) var(--reader-font); text-align: var(--text-align); filter: brightness(var(--brightness)); }
.chapter-kicker { color: var(--muted); font: 10px/1.5 "Segoe UI", sans-serif; letter-spacing: .18em; margin-bottom: 22px; }
#chapter-title { font-family: var(--reader-font); font-size: 2.05em; line-height: 1.25; margin-bottom: 1.35em; letter-spacing: -.035em; }
.reader-block { margin: 0 0 var(--paragraph-spacing); overflow-wrap: break-word; }
.reader-block.type-heading { font: 1.4em/1.4 var(--reader-font); margin-block: 1.6em .8em; }
.reader-block.type-quote { border-left: 2px solid var(--line); padding-left: 1.1em; margin-left: 0; font-style: italic; }
.reader-block.type-list { padding-left: 1.15em; border-left: 2px solid var(--line); }
.reader-block.type-verse { white-space: pre-line; text-align: left; }
.reader-block.type-separator { height: 1px; border: 0; background: var(--line); margin-block: 2em; }
.chapter-end { text-align: center; padding: 50px 0 20px; font: 13px/1.8 "Segoe UI", sans-serif; color: var(--muted); }
.chapter-end > span { display: block; font-size: 24px; color: var(--warm); margin-bottom: 18px; }
.chapter-end .text-link { display: block; margin-top: 20px; }
.chapter-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.reader-control { position: fixed; z-index: 10; background: color-mix(in srgb, var(--bg) 94%, transparent); backdrop-filter: blur(12px); transition: opacity .3s, transform .3s; }
.reader-top { top: 0; left: 0; right: 0; display: flex; align-items: center; gap: 17px; padding: 13px 25px; border-bottom: 1px solid var(--line); }
.reader-title { display: flex; flex-direction: column; min-width: 0; gap: 2px; }
.reader-title strong { font-size: 12px; font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.reader-title small { font-size: 10px; color: var(--muted); }
.reader-top nav { margin-left: auto; display: flex; gap: 4px; }
.reader-bottom { bottom: 18px; left: 50%; transform: translateX(-50%); border: 1px solid var(--line); border-radius: 14px; padding: 13px 22px 9px; width: 540px; max-width: calc(100% - 30px); box-shadow: 0 8px 45px #0000000a; }
.reading-status { display: flex; justify-content: space-between; gap: 12px; font-size: 10px; color: var(--muted); }
.playback-controls { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 7px; }
.play-button { display: inline-flex; align-items: center; justify-content: center; width: 45px; height: 45px; border: 0; border-radius: 50%; background: var(--accent); color: var(--surface); margin-inline: 3px; }
.play-button[aria-pressed="true"] { box-shadow: 0 0 0 4px var(--accent-soft); }
.speed-display { background: none; border: 0; color: var(--ink); font-size: 12px; min-width: 68px; }
#elapsed-time { font-size: 10px; font-variant-numeric: tabular-nums; color: var(--muted); padding-inline: 10px; }
.reader-hint { text-align: center; color: var(--muted); font-size: 9px; margin: 5px 0 0; }
.controls-hidden .reader-control { opacity: 0; pointer-events: none; }
.controls-hidden .reader-top { transform: translateY(-8px); }
.controls-hidden .reader-bottom { transform: translate(-50%, 8px); }
.controls-hidden { cursor: none; }
.reader-panel { display: none; overflow-y: auto; position: fixed; width: 390px; max-width: calc(100vw - 20px); max-height: calc(100dvh - 96px); margin: 70px 18px auto auto; top: 0; right: 0; left: auto; bottom: auto; z-index: 60; border: 1px solid var(--line); border-radius: 13px; padding: 26px; background: var(--surface); color: var(--ink); box-shadow: 0 20px 80px #0002; font-size: 13px; }
.reader-panel.open { display: block; }
#chapters-panel.open { display: flex; flex-direction: column; overflow: hidden; }
.panel-backdrop { position: fixed; inset: 0; background: #0006; z-index: 55; display: none; }
.panel-backdrop.open { display: block; }
.panel-actions { margin-top: 14px; display: flex; justify-content: flex-end; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 15px; }
.panel-heading h2 { font-size: 28px; margin: 0; }
.reader-panel > p { font-size: 12px; }
.reader-panel small { color: var(--muted); font-weight: 400; font-size: 10px; }
.reader-panel label { font-size: 11px; }
.reader-panel .form-grid { gap: 15px; }
.reader-panel input[type="range"] { width: 100%; accent-color: var(--accent); cursor: pointer; }
.reader-panel h3 { font-size: 15px; margin: 27px 0 17px; }
.reader-panel output { color: var(--muted); font-weight: 400; }
#chapters-panel .panel-heading, #chapters-panel .panel-tabs { flex: 0 0 auto; }
#chapters-panel .panel-body { flex: 1 1 auto; min-height: 0; overflow-y: auto; margin: 0 -6px; padding: 2px 6px 0; }
.panel-tabs { display: flex; gap: 8px; margin-bottom: 15px; border-bottom: 1px solid var(--line); }
.panel-tabs button { border: 0; background: none; color: var(--muted); padding: 9px 6px; font-size: 12px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.panel-tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.tab-count { color: var(--muted); font-size: 10px; }
#chapter-nav { display: flex; flex-direction: column; gap: 6px; }
#chapter-nav button, .saved-item { text-align: left; border: 1px solid var(--line); background: transparent; color: var(--ink); padding: 12px; border-radius: 6px; width: 100%; font-size: 12px; }
#chapter-nav button[aria-current="true"] { background: var(--accent-soft); border-color: var(--accent); }
.saved-item { margin-bottom: 8px; overflow-wrap: anywhere; }
#saved-items .muted { font-size: 12px; }
.saved-item small { display: block; margin-top: 5px; }
.saved-row { display: flex; gap: 6px; align-items: stretch; margin-bottom: 8px; }
.saved-row .saved-item { flex: 1 1 auto; margin-bottom: 0; }
.saved-delete { flex: 0 0 auto; border: 1px solid var(--line); background: transparent; color: var(--muted); border-radius: 6px; padding: 0 11px; font-size: 15px; line-height: 1; cursor: pointer; }
.saved-delete:hover { color: var(--warm); border-color: var(--warm); }
.reader-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.reader-stats > div { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 16px; display: flex; flex-direction: column; }
.reader-stats span { font-size: 10px; color: var(--muted); min-height: 30px; }
.reader-stats strong { font: 26px/1.4 Georgia, serif; font-variant-numeric: tabular-nums; }
.reader-stats small { font-size: 10px; }
#focus-line { display: none; position: fixed; top: var(--focus-pos); left: 0; width: 100%; height: 3.3em; transform: translateY(-35%); border-block: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); pointer-events: none; z-index: 2; }
.show-focus-line #focus-line { display: block; }
.focus-mode #reader-viewport { mask-image: linear-gradient(to bottom, #0005, #000a calc(var(--focus-pos) - 15%), #000 calc(var(--focus-pos) - 4%), #000 calc(var(--focus-pos) + 6%), #000a calc(var(--focus-pos) + 20%), #0005); }
.selection-toolbar { position: fixed; z-index: 25; left: 50%; bottom: 165px; transform: translateX(-50%); display: flex; gap: 5px; padding: 7px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 8px 30px #0002; max-width: calc(100vw - 20px); }
.selection-toolbar button { border: 0; background: var(--accent-soft); color: var(--ink); font-size: 11px; padding: 10px; border-radius: 5px; }
.sync-prompt { position: fixed; z-index: 30; top: 90px; left: 50%; transform: translateX(-50%); width: 460px; max-width: calc(100vw - 30px); padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; box-shadow: 0 15px 50px #0002; font-size: 13px; }
.reader-noscript { position: fixed; z-index: 40; bottom: 0; padding: 10px; background: var(--surface); font-size: 12px; }
.reader-page .toast { bottom: 180px; }
@media (max-width: 600px) {
    .reader-top { padding: 10px 8px; gap: 5px; }
    .reader-title { flex: 1; }
    .reader-top nav { gap: 0; }
    .reader-top .icon-button { width: 35px; height: 40px; }
    #reader-content { padding-top: 105px; }
    #chapter-title { font-size: 1.65em; }
    .reader-panel { margin: auto; }
    .reader-bottom { bottom: max(10px, env(safe-area-inset-bottom)); padding: 12px 12px 8px; }
    .reading-status { font-size: 9px; }
    .playback-controls { gap: 2px; flex-wrap: wrap; }
    #elapsed-time { padding-inline: 6px; }
    .reader-hint { font-size: 8px; }
    .reader-title small { display: none; }
}