/* Semantic surface layer shared by library, reader, community and account pages. */
html[data-site-theme] { background: var(--bg); accent-color: var(--accent-strong); scrollbar-color: var(--border-strong) var(--bg); }
html[data-site-theme] body { background: var(--bg); color: var(--text); }
html[data-site-theme] ::selection { background: var(--accent-soft); color: var(--text); }
html[data-site-theme] :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
html[data-site-theme] .topbar { background: var(--topbar-bg); border-color: var(--border); }
html[data-site-theme] .brand span { background: none; color: var(--accent); -webkit-text-fill-color: currentColor; }
html[data-site-theme] .search-bar { background: var(--surface); box-shadow: var(--shadow-card); }
html[data-site-theme] .search-bar:focus { box-shadow: 0 0 0 3px var(--accent-soft); }
html[data-site-theme] .card { background: var(--surface); box-shadow: none; }
html[data-site-theme] .card:hover { border-color: var(--accent-border); box-shadow: var(--shadow-card); }
html[data-site-theme] .btn-primary,
html[data-site-theme] .btn-grad,
html[data-site-theme] .btn-read:not(.continue),
html[data-site-theme] .btn-community,
html[data-site-theme] .btn.active-toggle,
html[data-site-theme] .seg button.active,
html[data-site-theme] .page-btn.active,
html[data-site-theme] .filter-toggle .count { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--accent-contrast); box-shadow: none; }
html[data-site-theme] .btn-primary:hover,
html[data-site-theme] .btn-grad:hover,
html[data-site-theme] .btn-read:not(.continue):hover { filter: brightness(.94); }
html[data-site-theme] .btn-community:hover { background: var(--accent-strong); filter: brightness(1.08); }
html[data-site-theme] .ctag { color: var(--text-2); border-color: var(--border); background: var(--surface-2); }
html[data-site-theme] .ctag:hover { color: var(--accent); background: var(--accent-soft); }
html[data-site-theme] .tag-chip { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-border); }
html[data-site-theme] .tag-chip .chip-remove { color: var(--accent); }
html[data-site-theme] .tag-chip .chip-remove:hover { color: var(--red); }
html[data-site-theme] .tag-chip-input-container:focus-within { box-shadow: 0 0 0 3px var(--accent-soft); }
html[data-site-theme] .translated-mark,
html[data-site-theme] .mini-badge.updated,
html[data-site-theme] .mini-badge.uploaded,
html[data-site-theme] .badge-mini.en,
html[data-site-theme] .chip.inc,
html[data-site-theme] .selected-tag,
html[data-site-theme] .upload-progress { color: var(--accent); border-color: var(--accent-border); background: var(--accent-soft); box-shadow: none; }
html[data-site-theme] .badge-mini.raw { color: var(--text-2); border-color: var(--border); background: var(--surface-2); }
html[data-site-theme] .mini-badge.complete,
html[data-site-theme] .btn-read.continue { color: var(--green); border-color: color-mix(in srgb,var(--green) 35%,transparent); background: var(--green-soft); }
html[data-site-theme] .mini-badge.new { color: var(--blue); border-color: color-mix(in srgb,var(--blue) 35%,transparent); background: var(--blue-soft); }
html[data-site-theme] .mini-badge.raw { color: var(--text-2); background: var(--surface-2); }
html[data-site-theme] .modal,
html[data-site-theme] .gate-card,
html[data-site-theme] .tag-dropdown-menu { background: var(--surface); border-color: var(--border); box-shadow: var(--shadow); }
html[data-site-theme] .modal-overlay,
html[data-site-theme] #filterScrim.show,
html[data-site-theme] .gate,
html[data-site-theme] .scrim { background: var(--overlay); }
html[data-site-theme] .detail-hero::after { background: linear-gradient(180deg,color-mix(in srgb,var(--surface) 15%,transparent),var(--surface) 97%); }
html[data-site-theme] .detail-stats .stat { background: var(--surface-2); color: var(--text-2); border-color: var(--border); }
html[data-site-theme] .detail-close,
html[data-site-theme] .sim-x { background: var(--surface); color: var(--text-2); border-color: var(--border-strong); }
html[data-site-theme] .detail-cover { box-shadow: var(--shadow); }
html[data-site-theme] .tag-dropdown-item:hover,
html[data-site-theme] .tag-dropdown-item.active { background: var(--accent-soft); color: var(--accent); }
html[data-site-theme] .btn-discord,
html[data-site-theme] .wcard-tag.must { color: var(--blue); border-color: color-mix(in srgb,var(--blue) 35%,transparent); background: var(--blue-soft); }
html[data-site-theme] .btn-patreon { color: var(--red); border-color: color-mix(in srgb,var(--red) 35%,transparent); background: var(--red-soft); }
html[data-site-theme] .patreon-card { background: var(--red-soft); border-color: color-mix(in srgb,var(--red) 30%,transparent); }
html[data-site-theme] .patreon-perks li svg { stroke: var(--red); }
html[data-site-theme] .welcome-hero::before { background: radial-gradient(ellipse at 50% 0%,var(--accent-soft),transparent 68%); }
html[data-site-theme] .welcome-mark { background: var(--accent-strong); color: var(--accent-contrast); box-shadow: var(--shadow-card); }
html[data-site-theme] .welcome-mark svg { stroke: currentColor; }
html[data-site-theme] .welcome h2 span { color: var(--accent); }
html[data-site-theme] .notice { background: var(--amber-soft); border-color: color-mix(in srgb,var(--amber) 35%,transparent); color: var(--amber); }
html[data-site-theme] .info { background: var(--accent-soft); border-color: var(--accent-border); color: var(--accent); }
html[data-site-theme] .error { color: var(--red); }
html[data-site-theme] body[data-page="auth"] > .card { box-shadow: var(--shadow); }
html[data-site-theme] body[data-page="auth"] form button { background: var(--accent-strong); color: var(--accent-contrast); }
html[data-site-theme] .user-chip,
html[data-site-theme] .share-kind.novel { border-color: var(--accent-border); }
html[data-site-theme] .chat-msg.mine .chat-bubble { border-color: var(--accent-border); }
html[data-site-theme] .share-kind.collection { color: var(--green); background: var(--green-soft); }
html[data-site-theme] .reader { background: var(--bg); border: none; box-shadow: none; }
html[data-site-theme] .reader-article { background: transparent; color: var(--text); }
html[data-site-theme] .reader :is(pre,code,table,th,td,blockquote) { border-color: var(--border); }
html[data-site-theme] .reader :is(pre,code,th) { background-color: var(--surface-2); color: var(--text); }
html[data-site-theme] .topline::-webkit-progress-value,
html[data-site-theme] #toplineFill::-webkit-progress-value { background: var(--accent-strong); }
html[data-site-theme] #toplineFill::-moz-progress-bar { background: var(--accent-strong); }
html[data-site-theme] body[data-page="reader"] :is(.tab.active,.drawer-tabs button.active,.trans-view-toggle,.panel button.primary,.endrecs-actions button:not(.ghost)) { background: var(--accent-strong); color: var(--accent-contrast); border-color: var(--accent-strong); }
html[data-site-theme] .reader .ch-kicker::after,
html[data-site-theme] .endnav::before,
html[data-site-theme] .endrecs::before { background: linear-gradient(90deg,var(--accent-border),transparent); }
html[data-site-theme] .sheet,
html[data-site-theme] .drawer { background: var(--surface); border-color: var(--border); }
html[data-site-theme] :is(.trans-header-bar,.ai-live-content,.reader-article hr) { border-color: var(--border); }

/* Appearance button. Header positioning is inherited from the existing UI. */
.appearance-launch { cursor: pointer; font: inherit; }
.appearance-launch svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.appearance-floating { position: fixed; right: 22px; bottom: 22px; z-index: 80; display: inline-flex; align-items: center; gap: 8px; width: auto; margin: 0; padding: 10px 15px; border-radius: 99px; background: var(--surface); border: 1px solid var(--border); color: var(--text); font: 600 13px/1.3 system-ui,sans-serif; box-shadow: var(--shadow-card); }
.reader-appearance { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text); border-radius: 10px; font: inherit; }
.reader-appearance span:last-child { display: flex; align-items: center; gap: 8px; color: var(--accent); font-size: 13px; }

/* Native dialog supplies focus containment and background inertness. */
.appearance-dialog { width: min(620px,calc(100vw - 32px)); max-height: calc(100dvh - 40px); overflow: auto; margin: auto; padding: 28px; border: 1px solid var(--border); border-radius: 22px; color: var(--text); background: var(--surface); box-shadow: 0 32px 100px rgba(0,0,0,.3); font: 14px/1.5 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif; }
.appearance-dialog::backdrop { background: var(--overlay); backdrop-filter: blur(5px); }
.appearance-dialog[open] { animation: appearance-enter 160ms ease-out; }
.appearance-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.appearance-eyebrow { display: block; margin-bottom: 8px; color: var(--accent); font-size: 9px; font-weight: 750; letter-spacing: 1.6px; }
.appearance-heading h2 { margin: 0; color: var(--text); font-size: clamp(22px,4vw,28px); line-height: 1.2; font-weight: 650; letter-spacing: -.9px; }
.appearance-dialog .appearance-close { display: grid; place-items: center; width: 32px; min-width: 32px; height: 32px; padding: 0; margin: 0; border: 1px solid var(--border); border-radius: 50%; color: var(--text-2); background: var(--surface-2); cursor: pointer; }
.appearance-close svg { width: 15px; height: 15px; stroke: currentColor; stroke-width: 1.7; fill: none; }
.appearance-description { margin: 10px 0 23px; color: var(--text-2); font-size: 13px; }
.appearance-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; }
.appearance-dialog .appearance-choice { display: flex; flex-direction: column; align-items: stretch; width: auto; min-width: 0; padding: 0 0 9px; margin: 0; background: transparent; color: var(--text); border: 0; text-align: left; cursor: pointer; border-radius: 11px; font-family: inherit; font-size: 13px; }
.appearance-sample { position: relative; display: flex; width: 100%; height: 97px; padding: 9px; gap: 7px; border: 1px solid var(--sample-border); border-radius: 10px; background: var(--sample-bg); box-shadow: inset 0 0 0 1px transparent; transition: outline-color .15s,transform .15s; }
.appearance-choice:hover .appearance-sample { transform: translateY(-2px); }
.appearance-choice.is-selected .appearance-sample { outline: 2px solid var(--accent); outline-offset: 3px; }
.sample-sidebar { width: 23%; padding: 5px 4px; background: var(--sample-surface); border: 1px solid var(--sample-border); border-radius: 4px; }
.sample-sidebar i { display: block; height: 3px; width: 75%; margin: 5px 0; border-radius: 2px; background: var(--sample-text); opacity: .2; }
.sample-sidebar i:first-child { background: var(--sample-accent); opacity: .95; width: 90%; }
.sample-main { display: flex; flex: 1; min-width: 0; flex-direction: column; gap: 7px; padding-top: 4px; }
.sample-bar { display: block; width: 72%; height: 5px; background: var(--sample-text); opacity: .55; border-radius: 2px; }
.sample-books { display: grid; grid-template-columns: repeat(3,1fr); gap: 4px; }
.sample-books i { height: 31px; background: var(--sample-surface); border: 1px solid var(--sample-border); border-radius: 3px; }
.sample-books i:first-child { background: var(--sample-accent); opacity: .8; }
.sample-books i:last-child { background: color-mix(in srgb,var(--sample-accent) 22%,var(--sample-surface)); }
.sample-lines i { display: block; height: 3px; width: 87%; margin-bottom: 4px; background: var(--sample-text); opacity: .14; border-radius: 2px; }
.sample-lines i:last-child { width: 55%; }
.sample-check { position: absolute; right: 6px; top: 6px; width: 19px; height: 19px; display: none; place-items: center; border-radius: 50%; background: var(--accent-strong); color: var(--accent-contrast); box-shadow: 0 0 0 2px var(--sample-bg); }
.sample-check svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 2.5; }
.is-selected .sample-check { display: grid; }
.appearance-name { margin-top: 10px; font-size: 13px; font-weight: 650; letter-spacing: -.15px; }
.appearance-caption { margin-top: 1px; color: var(--text-2); font-size: 10px; line-height: 1.4; font-weight: 400; }
.appearance-dialog .appearance-system { display: flex; align-items: center; width: 100%; gap: 12px; margin: 15px 0 0; padding: 12px 14px; border: 1px solid var(--border); border-radius: 11px; color: var(--text); background: var(--surface-2); cursor: pointer; font-family: inherit; text-align: left; }
.appearance-system svg { width: 22px; height: 22px; fill: none; stroke: var(--text-2); stroke-width: 1.6; }
.appearance-system strong { display: block; font-size: 12px; font-weight: 650; }
.appearance-system small { display: block; color: var(--text-2); font-size: 10px; margin-top: 1px; font-weight: 400; }
.appearance-radio { margin-left: auto; width: 15px; height: 15px; border: 1px solid var(--border-strong); border-radius: 50%; }
.appearance-system.is-selected .appearance-radio { border: 4px solid var(--accent-strong); }
.appearance-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
.appearance-footer > span { color: var(--text-2); font-size: 10px; max-width: 210px; }
.appearance-dialog .appearance-done { display: inline-flex; align-items: center; justify-content: center; gap: 12px; width: auto; margin: 0; padding: 9px 14px; border: 1px solid var(--accent-strong); border-radius: 8px; color: var(--accent-contrast); background: var(--accent-strong); font-family: inherit; font-size: 12px; font-weight: 600; line-height: 1.4; cursor: pointer; }
.appearance-done svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.appearance-dialog button:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.appearance-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
@keyframes appearance-enter { from { opacity: 0; transform: translateY(7px) scale(.99); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .appearance-dialog[open] { animation: none; } .appearance-sample { transition: none; } }
@media (max-width: 420px) {
  .appearance-dialog { padding: 21px; border-radius: 18px; }
  .appearance-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px 14px; }
  .appearance-sample { height: 85px; }
  .appearance-description { margin-bottom: 19px; font-size: 12px; }
  .appearance-footer { margin-top: 16px; padding-top: 15px; }
}