/* =========================================================================
   Reader website — brand-themed design system (node-free, hand-authored).
   Brand tokens (--c-primary/secondary/accent/bg) are injected per publisher
   in the layout <head>; everything else derives from them here.
   ========================================================================= */

:root {
    --c-text: #1d1512;
    --c-muted: color-mix(in srgb, var(--c-text) 52%, var(--c-bg));
    --c-surface: #ffffff;
    --c-surface-2: color-mix(in srgb, var(--c-bg) 82%, #ffffff);
    --c-border: color-mix(in srgb, var(--c-text) 12%, transparent);
    --c-on-accent: #ffffff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.05);
    --shadow-md: 0 6px 20px -6px color-mix(in srgb, var(--c-accent) 30%, rgba(0,0,0,.28));
    --shadow-lg: 0 18px 50px -12px color-mix(in srgb, var(--c-accent) 26%, rgba(0,0,0,.4));
    --radius: 16px;
    --radius-sm: 10px;
    --wrap: 1160px;
    --measure: 42rem;
    --ease: cubic-bezier(.22,.61,.36,1);
    --header-h: 66px;
    color-scheme: light;
}
html[data-theme="dark"] {
    --c-text: #f2ebe4;
    --c-muted: color-mix(in srgb, var(--c-text) 55%, var(--c-bg));
    --c-surface: color-mix(in srgb, var(--c-bg) 82%, #ffffff 7%);
    --c-surface-2: color-mix(in srgb, var(--c-bg) 68%, #ffffff 9%);
    --c-border: color-mix(in srgb, #ffffff 12%, transparent);
    color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-brand);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1,h2,h3 { line-height: 1.18; font-weight: 700; letter-spacing: -.01em; }
.ic { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(18px, 4vw, 40px); }
.section { padding-block: clamp(40px, 7vw, 90px); }
.empty { color: var(--c-muted); padding: 40px 0; }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--c-accent); color: var(--c-on-accent); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 12px; }

/* ---- Buttons / chips --------------------------------------------------- */
.btn { display: inline-flex; align-items: center; gap: 8px; font: inherit; font-weight: 600; padding: 12px 22px; border-radius: 999px; border: 1px solid transparent; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s; }
.btn-primary { background: var(--c-accent); color: var(--c-on-accent); box-shadow: var(--shadow-md); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-primary:active { transform: translateY(0); }
.chip { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; background: color-mix(in srgb, var(--c-accent) 12%, transparent); color: var(--c-accent); }
.chip .ic { width: 15px; height: 15px; }

.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-outline { background: transparent; border-color: var(--c-border); color: var(--c-text); }
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Account menu ------------------------------------------------------ */
.account { position: relative; }
.avatar-btn { border: 0; background: transparent; cursor: pointer; padding: 0; border-radius: 50%; }
.avatar { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--c-accent); color: var(--c-on-accent); font-weight: 700; font-size: 1rem; box-shadow: var(--shadow-sm); transition: transform .18s var(--ease); }
.avatar-btn:hover .avatar { transform: scale(1.06); }
.menu-pop { position: absolute; right: 0; top: calc(100% + 10px); width: 230px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 14px; box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .2s, transform .2s var(--ease); z-index: 50; }
.account.open .menu-pop { opacity: 1; visibility: visible; transform: none; }
.menu-head { padding: 10px 12px; border-bottom: 1px solid var(--c-border); margin-bottom: 6px; display: flex; flex-direction: column; }
.menu-name { font-weight: 700; }
.menu-email { font-size: .8rem; color: var(--c-muted); overflow: hidden; text-overflow: ellipsis; }
.menu-item { display: block; width: 100%; text-align: left; padding: 10px 12px; border-radius: 9px; color: var(--c-text); font: inherit; }
.menu-item:hover { background: var(--c-surface-2); color: var(--c-accent); }
.menu-item.as-btn { border: 0; background: transparent; cursor: pointer; }

/* ---- Login modal ------------------------------------------------------- */
.modal-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.55); backdrop-filter: blur(3px); opacity: 0; visibility: hidden; transition: opacity .25s; z-index: 60; }
.modal-scrim.open { opacity: 1; visibility: visible; }
.modal { position: fixed; z-index: 61; left: 50%; top: 50%; width: min(420px, 92vw); background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 22px; box-shadow: var(--shadow-lg); padding: 34px 30px; opacity: 0; visibility: hidden; transform: translate(-50%, -46%) scale(.96); transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s; }
.modal.open { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }
.modal-close { position: absolute; top: 14px; right: 14px; min-width: 34px; height: 34px; }
.modal-body { text-align: center; }
.modal-logo { width: 64px; height: 64px; object-fit: contain; margin: 0 auto 12px; }
.modal-title { font-size: 1.5rem; margin: 0; }
.modal-sub { color: var(--c-muted); margin: 8px 0 22px; font-size: .95rem; }
.google-btn-wrap { display: flex; justify-content: center; min-height: 44px; }
.or-divider { display: flex; align-items: center; gap: 12px; color: var(--c-muted); font-size: .8rem; margin: 20px 0; }
.or-divider::before, .or-divider::after { content: ""; flex: 1; height: 1px; background: var(--c-border); }
.dev-login { display: flex; flex-direction: column; gap: 12px; text-align: left; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: .85rem; color: var(--c-muted); }
.field input { font: inherit; color: var(--c-text); background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: 10px; padding: 11px 14px; outline: none; transition: border-color .2s, box-shadow .2s; }
.field input:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 18%, transparent); }
.login-error { color: #d64545; font-size: .85rem; margin: 4px 0 0; }
.dev-note { color: var(--c-muted); font-size: .72rem; text-align: center; margin: 2px 0 0; }

/* ---- Account page ------------------------------------------------------ */
.account-hero { display: flex; align-items: center; gap: 20px; padding: 26px 0 30px; flex-wrap: wrap; }
.avatar-lg { width: 76px; height: 76px; font-size: 1.9rem; }
.account-name { margin: 0; font-size: 1.7rem; }
.account-email { margin: 4px 0 0; color: var(--c-muted); }
.account-signout { margin-left: auto; }
.account-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; margin-top: 8px; }
.account-card { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 22px; border-radius: var(--radius); background: var(--c-surface-2); border: 1px solid transparent; transition: border-color .2s, transform .25s var(--ease); }
.account-card:hover { border-color: var(--c-accent); transform: translateY(-3px); }
.account-card-ic { font-size: 1.6rem; color: var(--c-accent); }
.account-card h3 { margin: 4px 0 0; }
.account-card p { margin: 0; color: var(--c-muted); font-size: .9rem; }
.account-card .soon { margin-top: 8px; font-size: .72rem; font-weight: 600; color: var(--c-accent); text-transform: uppercase; letter-spacing: .05em; }

.account-lists { display: flex; flex-direction: column; gap: 26px; }
.list-block { background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 22px 24px; }
.list-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.list-name { display: flex; align-items: center; gap: 9px; margin: 0; font-size: 1.2rem; }
.list-name .ic { width: 18px; height: 18px; color: var(--c-accent); fill: currentColor; stroke: none; }
.list-count { color: var(--c-muted); font-size: .85rem; }
.saved-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.saved-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid transparent; transition: border-color .2s, transform .2s var(--ease); }
.saved-item:hover { border-color: var(--c-accent); transform: translateX(4px); }
.saved-title { font-weight: 600; }
.saved-book { color: var(--c-muted); font-size: .84rem; margin-left: auto; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 40%; }
.saved-arrow { width: 16px; height: 16px; color: var(--c-muted); }
.empty.small { padding: 12px 0; font-size: .9rem; }
.account-empty { text-align: center; padding: 50px 20px; background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: var(--radius); }
.account-empty .account-card-ic { font-size: 2.4rem; margin-bottom: 8px; }
.account-empty h3 { margin: 0 0 6px; }
.account-empty p { color: var(--c-muted); margin: 0 0 18px; }

/* ---- Header ------------------------------------------------------------ */
.site-header { position: sticky; top: 0; z-index: 40; backdrop-filter: saturate(1.4) blur(14px); background: color-mix(in srgb, var(--c-bg) 78%, transparent); border-bottom: 1px solid transparent; transition: border-color .3s, background .3s; }
.site-header.scrolled { border-bottom-color: var(--c-border); background: color-mix(in srgb, var(--c-bg) 88%, transparent); }
.header-inner { display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-logo { width: 40px; height: 40px; object-fit: contain; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-title-gu { font-weight: 700; font-size: 1.02rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-title-en { font-size: .72rem; color: var(--c-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; letter-spacing: .02em; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.search-mini { display: flex; align-items: center; gap: 8px; background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: 999px; padding: 8px 14px; color: var(--c-muted); transition: border-color .2s, box-shadow .2s; }
.search-mini:focus-within { border-color: var(--c-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 18%, transparent); }
.search-mini input { border: 0; background: transparent; font: inherit; color: var(--c-text); outline: none; width: 120px; }
.search-mini .ic { width: 17px; height: 17px; }

.icon-btn { display: inline-flex; align-items: center; justify-content: center; gap: 3px; min-width: 40px; height: 40px; padding: 0 10px; border: 1px solid var(--c-border); background: var(--c-surface-2); color: var(--c-text); border-radius: 11px; cursor: pointer; font: inherit; font-weight: 600; font-size: .85rem; transition: transform .18s var(--ease), background .2s, border-color .2s; }
.icon-btn:hover { transform: translateY(-1px); border-color: var(--c-accent); color: var(--c-accent); }
.theme-toggle .ic-sun { display: none; }
html[data-theme="dark"] .theme-toggle .ic-sun { display: inline-block; }
html[data-theme="dark"] .theme-toggle .ic-moon { display: none; }

/* ---- Hero -------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding-block: clamp(48px, 9vw, 120px); text-align: center; }
.hero-glow { position: absolute; inset: -40% 0 auto 0; height: 620px; margin: auto; pointer-events: none;
    background: radial-gradient(60% 60% at 50% 20%, color-mix(in srgb, var(--c-accent) 34%, transparent), transparent 70%);
    filter: blur(8px); opacity: .8; animation: floaty 12s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0) scale(1); } 50% { transform: translateY(24px) scale(1.05); } }
.hero-inner { position: relative; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.hero-logo { width: clamp(84px, 16vw, 132px); height: auto; object-fit: contain; filter: drop-shadow(0 10px 30px color-mix(in srgb, var(--c-accent) 40%, transparent)); animation: pop .8s var(--ease) both; }
@keyframes pop { from { opacity: 0; transform: scale(.8) translateY(10px); } to { opacity: 1; transform: none; } }
.hero-title-gu { font-size: clamp(2rem, 5.5vw, 3.4rem); margin: 4px 0 0; background: linear-gradient(180deg, var(--c-text), color-mix(in srgb, var(--c-text) 55%, var(--c-accent))); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-title-en { font-size: 1rem; color: var(--c-muted); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; margin: 0; }
.hero-about { max-width: 46rem; color: var(--c-muted); font-size: 1.06rem; margin: 8px auto 0; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 18px; }
.hero-count { color: var(--c-muted); font-weight: 600; font-size: .9rem; }

.section-head { margin-bottom: clamp(22px, 3vw, 36px); }
.section-title { font-size: clamp(1.5rem, 3.5vw, 2.1rem); margin: 0; }
.section-sub { color: var(--c-muted); margin: 6px 0 0; }

/* ---- Book grid --------------------------------------------------------- */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: clamp(18px, 2.4vw, 30px); }
.book-card { position: relative; display: flex; flex-direction: column; gap: 12px; }
.book-cover { position: relative; aspect-ratio: 3 / 4; border-radius: var(--radius); overflow: hidden; background: var(--c-surface-2); box-shadow: var(--shadow-sm); transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.book-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.book-card:hover .book-cover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.book-card:hover .book-cover img { transform: scale(1.06); }
.book-cover::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px var(--c-border); }
.book-cover img { position: relative; z-index: 1; }
.book-cover-fallback { position: absolute; inset: 0; width: 100%; height: 100%; display: grid; place-items: center; background: linear-gradient(145deg, color-mix(in srgb, var(--c-accent) 22%, var(--c-surface-2)), var(--c-surface-2)); }
.book-hero-cover .book-cover-fallback { position: static; }
.book-cover-fallback span { font-size: 2.6rem; font-weight: 800; color: var(--c-accent); }
.book-cover-fallback.lg span { font-size: 4rem; }
.badge-audio { position: absolute; top: 10px; right: 10px; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--c-accent) 92%, #000); color: #fff; box-shadow: var(--shadow-md); }
.badge-audio .ic { width: 16px; height: 16px; }
.book-name { font-size: 1rem; margin: 0; font-weight: 700; }
.book-name-en { font-size: .82rem; color: var(--c-muted); margin: 2px 0 0; }

/* ---- Breadcrumb / book hero ------------------------------------------- */
.breadcrumb { display: flex; gap: 10px; align-items: center; color: var(--c-muted); font-size: .88rem; padding-top: 22px; }
.breadcrumb a:hover { color: var(--c-accent); }
.book-hero { display: grid; grid-template-columns: minmax(0, 250px) 1fr; gap: clamp(24px, 4vw, 48px); align-items: center; padding-top: 26px; }
.book-hero-cover { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 3/4; background: var(--c-surface-2); }
.book-hero-cover img { width: 100%; height: 100%; object-fit: cover; }
.book-title { font-size: clamp(1.7rem, 4vw, 2.6rem); margin: 0; }
.book-title-en { color: var(--c-muted); font-weight: 600; margin: 6px 0 0; letter-spacing: .04em; }
.book-desc { margin: 16px 0 0; color: var(--c-muted); max-width: 46rem; }
.book-hero-actions { display: flex; gap: 14px; align-items: center; margin-top: 22px; flex-wrap: wrap; }

/* ---- Chapter index ----------------------------------------------------- */
.chapter-index { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.chapter-index.nested { margin-left: 14px; padding-left: 14px; border-left: 1px solid var(--c-border); margin-top: 4px; }
.ch-link { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-radius: var(--radius-sm); background: var(--c-surface-2); border: 1px solid transparent; transition: border-color .2s, transform .2s var(--ease), background .2s; }
.ch-link:hover { border-color: var(--c-accent); transform: translateX(4px); }
.ch-title { font-weight: 600; }
.ch-sub { color: var(--c-muted); font-size: .85rem; margin-left: 4px; }
.ch-arrow { width: 18px; height: 18px; margin-left: auto; color: var(--c-muted); transition: transform .2s var(--ease); }
.ch-link:hover .ch-arrow { transform: translateX(3px); color: var(--c-accent); }
.ch-group { display: block; font-weight: 700; padding: 14px 4px 6px; color: var(--c-accent); font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; }

/* ---- Reader ------------------------------------------------------------ */
.page-reader { --header-h: 0px; }
.page-reader .site-header { display: none; }
.reader-shell { min-height: 100vh; }
.reader-bar { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--c-bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--c-border); }
.reader-bar-inner { display: flex; align-items: center; gap: 12px; max-width: var(--wrap); margin-inline: auto; padding: 10px clamp(16px, 4vw, 40px); }
.reader-book-name { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 34vw; }
.reader-bar-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.stepper { display: inline-flex; gap: 4px; }
.reader-progress { height: 3px; width: 0; background: linear-gradient(90deg, var(--c-secondary), var(--c-accent)); transition: width .1s linear; }
.save-btn .ic { fill: none; transition: fill .2s, transform .2s var(--ease); }
.save-btn.is-saved { color: var(--c-accent); border-color: var(--c-accent); }
.save-btn.is-saved .ic { fill: currentColor; transform: scale(1.08); }
.save-btn.is-busy { opacity: .6; pointer-events: none; }
.save-btn.shake { animation: shake .45s var(--ease); }
@keyframes shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

.reader-doc { max-width: 46rem; margin: 0 auto; padding: clamp(30px, 6vw, 64px) clamp(20px, 5vw, 24px) 120px; }
.reader-doc-head { text-align: center; margin-bottom: 30px; }
.reader-eyebrow { color: var(--c-accent); font-weight: 600; letter-spacing: .04em; margin: 0 0 8px; }
.reader-title { font-size: clamp(1.8rem, 5vw, 2.7rem); margin: 0; }
.reader-title-en { color: var(--c-muted); margin: 8px 0 0; font-weight: 500; }

.reader-content { font-size: var(--reader-font, 17px); line-height: var(--reader-spacing, 1.85); transition: font-size .2s var(--ease); }
.reader-content p { margin: 0 0 1.3em; }
.reader-content h1, .reader-content h2, .reader-content h3 { margin: 1.8em 0 .6em; }
.reader-content a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 3px; }
.reader-content img { margin: 1.5em auto; border-radius: 12px; }
.reader-content blockquote { margin: 1.5em 0; padding: 8px 20px; border-left: 3px solid var(--c-accent); color: var(--c-muted); font-style: italic; }
.reader-footnotes { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--c-border); color: var(--c-muted); font-size: .92rem; }
.reader-footnotes h2 { font-size: 1rem; color: var(--c-text); }

/* Audio player */
.audio-player { display: flex; align-items: center; gap: 16px; background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 14px 18px; margin: 0 0 34px; }
.audio-play { flex: none; width: 50px; height: 50px; border-radius: 50%; border: 0; cursor: pointer; background: var(--c-accent); color: var(--c-on-accent); display: grid; place-items: center; box-shadow: var(--shadow-md); transition: transform .2s var(--ease); }
.audio-play:hover { transform: scale(1.06); }
.audio-play .ic { width: 24px; height: 24px; fill: currentColor; stroke: none; }
.audio-play .ic-pause { display: none; }
.audio-player.is-playing .ic-play { display: none; }
.audio-player.is-playing .ic-pause { display: block; }
.audio-play:disabled { opacity: .55; cursor: not-allowed; }
/* loading spinner replaces the icon while resolving/buffering */
.audio-spinner { display: none; position: absolute; width: 22px; height: 22px; border-radius: 50%; border: 2.5px solid color-mix(in srgb, var(--c-on-accent) 40%, transparent); border-top-color: var(--c-on-accent); animation: sc-spin .7s linear infinite; }
.audio-player.is-loading .audio-spinner { display: block; }
.audio-player.is-loading .ic-play, .audio-player.is-loading .ic-pause { display: none; }
@keyframes sc-spin { to { transform: rotate(360deg); } }
.audio-body { flex: 1; }
.audio-track { height: 6px; border-radius: 999px; background: var(--c-border); overflow: hidden; cursor: pointer; }
.audio-fill { height: 100%; width: 0; background: var(--c-accent); border-radius: inherit; }
.audio-time { display: flex; justify-content: space-between; color: var(--c-muted); font-size: .78rem; margin-top: 7px; font-variant-numeric: tabular-nums; }

.reader-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 50px; }
.reader-nav-btn { display: flex; flex-direction: column; gap: 4px; padding: 16px 20px; border-radius: var(--radius); background: var(--c-surface-2); border: 1px solid var(--c-border); transition: border-color .2s, transform .2s var(--ease); }
.reader-nav-btn:hover { border-color: var(--c-accent); transform: translateY(-2px); }
.reader-nav-btn.next { text-align: right; }
.reader-nav-btn .dir { color: var(--c-accent); font-weight: 600; font-size: .82rem; }
.reader-nav-btn .nm { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Drawer */
.drawer-scrim { position: fixed; inset: 0; background: rgba(0,0,0,.5); opacity: 0; visibility: hidden; transition: opacity .3s; z-index: 45; }
.drawer { position: fixed; top: 0; left: 0; height: 100dvh; width: min(360px, 86vw); background: var(--c-surface); border-right: 1px solid var(--c-border); z-index: 46; transform: translateX(-100%); transition: transform .34s var(--ease); display: flex; flex-direction: column; }
.drawer.open { transform: none; }
.drawer.open ~ .drawer-scrim, .drawer-scrim.show { opacity: 1; visibility: visible; }
.drawer-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--c-border); }
.drawer-book { font-weight: 700; }
.drawer-head .icon-btn { margin-left: auto; }
.drawer-list { padding: 16px; overflow-y: auto; }

/* ---- Selection toolbar + correction modal ------------------------------ */
.sel-toolbar { position: absolute; z-index: 55; display: flex; gap: 2px; padding: 5px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 12px; box-shadow: var(--shadow-lg); animation: pop .18s var(--ease); }
.sel-btn { display: inline-flex; align-items: center; gap: 7px; border: 0; background: transparent; color: var(--c-text); font: inherit; font-weight: 600; font-size: .85rem; padding: 8px 12px; border-radius: 8px; cursor: pointer; }
.sel-btn:hover { background: var(--c-surface-2); color: var(--c-accent); }
.sel-btn .ic { width: 16px; height: 16px; }
.sel-colors { display: inline-flex; align-items: center; gap: 5px; padding: 0 5px; }
.swatch { width: 22px; height: 22px; border-radius: 50%; border: 2px solid color-mix(in srgb, var(--sw) 70%, #000 10%); background: var(--sw); cursor: pointer; transition: transform .15s var(--ease); padding: 0; }
.swatch:hover { transform: scale(1.18); }
.sel-divider { width: 1px; align-self: stretch; background: var(--c-border); margin: 4px 2px; }

/* highlight marks */
mark.hl { background: transparent; border-radius: 3px; padding: 0 1px; cursor: pointer; color: inherit; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
mark.hl-yellow { background: rgba(255,213,74,.42); }
mark.hl-green  { background: rgba(127,216,143,.42); }
mark.hl-blue   { background: rgba(121,184,255,.42); }
mark.hl-pink   { background: rgba(247,154,192,.42); }
html[data-theme="dark"] mark.hl-yellow { background: rgba(255,213,74,.30); }
html[data-theme="dark"] mark.hl-green  { background: rgba(127,216,143,.28); }
html[data-theme="dark"] mark.hl-blue   { background: rgba(121,184,255,.30); }
html[data-theme="dark"] mark.hl-pink   { background: rgba(247,154,192,.28); }

.hl-popover { position: absolute; z-index: 55; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: 10px; box-shadow: var(--shadow-lg); padding: 5px; animation: pop .16s var(--ease); }
.hl-remove { display: inline-flex; align-items: center; gap: 7px; border: 0; background: transparent; color: #d64545; font: inherit; font-weight: 600; font-size: .85rem; padding: 7px 11px; border-radius: 7px; cursor: pointer; }
.hl-remove:hover { background: color-mix(in srgb, #d64545 12%, transparent); }
.hl-remove .ic { width: 16px; height: 16px; }
.correct-modal { text-align: left; }
.correct-body .field textarea { font: inherit; color: var(--c-text); background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: 10px; padding: 11px 14px; outline: none; resize: vertical; transition: border-color .2s, box-shadow .2s; }
.correct-body .field textarea:focus { border-color: var(--c-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 18%, transparent); }
.correct-body .field textarea[readonly] { color: var(--c-muted); }
.correct-body .field { margin-bottom: 14px; }
.correct-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }
.correct-done { text-align: center; padding: 10px 0; }
.correct-check { width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; font-size: 1.7rem; color: var(--c-on-accent); background: var(--c-accent); box-shadow: var(--shadow-md); animation: pop .3s var(--ease); }

/* ---- Search ------------------------------------------------------------ */
.search-full { display: flex; align-items: center; gap: 12px; background: var(--c-surface-2); border: 1px solid var(--c-border); border-radius: 999px; padding: 10px 12px 10px 20px; max-width: 640px; }
.search-full:focus-within { border-color: var(--c-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 18%, transparent); }
.search-full input { flex: 1; border: 0; background: transparent; font: inherit; color: var(--c-text); outline: none; }
.results-count { color: var(--c-muted); margin: 26px 0 14px; }
.result-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.result-item a { display: block; padding: 18px 22px; border-radius: var(--radius); background: var(--c-surface-2); border: 1px solid transparent; transition: border-color .2s, transform .2s var(--ease); }
.result-item a:hover { border-color: var(--c-accent); transform: translateX(4px); }
.result-title { margin: 0 0 4px; font-size: 1.05rem; }
.result-snippet { margin: 0; color: var(--c-muted); font-size: .92rem; }

/* ---- Footer ------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--c-border); margin-top: 40px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 12px 30px; align-items: center; justify-content: space-between; padding-block: 30px; }
.footer-brand { display: flex; flex-direction: column; gap: 2px; }
.footer-brand a, .footer-meta a { color: var(--c-muted); }
.footer-brand a:hover, .footer-meta a:hover { color: var(--c-accent); }
.footer-meta { display: flex; gap: 18px; color: var(--c-muted); font-size: .9rem; }

/* ---- Reveal animations ------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: calc(var(--stagger, 0) * 60ms); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 720px) {
    .book-hero { grid-template-columns: 1fr; text-align: center; }
    .book-hero-cover { max-width: 220px; margin-inline: auto; }
    .book-hero-actions { justify-content: center; }
    .search-mini input { width: 84px; }
    .brand-title-gu { font-size: .92rem; }
    .reader-nav { grid-template-columns: 1fr; }
    .reader-book-name { max-width: 40vw; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}
