.collection-selector{display:block;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--paper)}
.collection-tier{display:flex;align-items:flex-start;gap:16px}.collection-tier+.collection-tier{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.tier-label{flex:0 0 48px;font-size:11px;color:var(--muted);padding-top:8px}.collection-tier nav{display:flex;flex-wrap:wrap;gap:8px}
.collection-tag{display:inline-flex;align-items:center;line-height:1.65;border-radius:8px;border:1px solid transparent;padding:3px 8px;max-width:100%;overflow-wrap:anywhere}
.main-tag{font-size:10px;color:var(--blue);background:var(--pale)}.work-tag{font-size:9px;color:var(--muted);border-color:var(--line);background:var(--paper)}
.collection-selector .main-tag{font-size:12px;padding:7px 13px;background:var(--pale);border-color:transparent;color:var(--blue);border-radius:10px}
.collection-selector .work-tag{font-size:11px;padding:5px 12px;border-radius:20px}
.collection-selector .main-tag[aria-current=true]{background:var(--blue);color:var(--paper);border-color:var(--blue)}
.collection-selector .work-tag[aria-current=true]{background:var(--pink);color:var(--ink);border-color:#d5a6b6}
.article-collection-tags,.reader-collection-tags{display:flex;align-items:center;gap:5px;flex-wrap:wrap;min-width:0}.card-meta{align-items:flex-start;gap:10px}.card-date{white-space:nowrap;flex-shrink:0;padding-top:3px;font-size:10px}
.reader-collection-tags{margin:12px 0 18px;gap:7px}.reader-collection-tags .main-tag{font-size:12px;padding:5px 11px}.reader-collection-tags .work-tag{font-size:11px;padding:4px 10px}
.reader-layout{width:calc(100% - 64px);max-width:1200px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;align-items:start;padding-top:45px}
.reader-layout:not(.has-toc){display:block;max-width:850px}.reader-layout .reader-wrap{margin:0;max-width:none;min-width:0}
.reader-sidebar{position:sticky;top:106px;min-width:0;padding-top:4px}.reader-sidebar .reader-toc{padding:18px 14px;background:var(--paper);margin:0}
.reader-sidebar .reader-toc summary{font-size:13px;color:var(--ink);font-weight:600}
.reader-sidebar .reader-toc nav{max-height:calc(100dvh - 220px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:0 3px;margin-top:14px}
.reader-sidebar .reader-toc button{width:100%;border-radius:7px;padding:8px 9px;color:var(--muted);font-size:12px;line-height:1.65;overflow-wrap:anywhere}
.reader-sidebar .reader-toc button[data-depth="1"]{padding-left:18px;font-size:11px}.reader-sidebar .reader-toc button[data-depth="2"]{padding-left:26px;font-size:11px}
.reader-sidebar .reader-toc button:hover{background:var(--pale);color:var(--blue)}.reader-sidebar .reader-toc button[aria-current]{background:var(--pale);color:var(--blue);font-weight:600;box-shadow:inset 2px 0 var(--blue)}
@media(min-width:1001px){.reader-sidebar summary{list-style:none;cursor:default}.reader-sidebar summary::-webkit-details-marker{display:none}}
@media(max-width:1000px){.reader-layout{display:block;max-width:850px;width:calc(100% - 40px);padding-top:32px}.reader-sidebar{position:fixed;z-index:30;top:auto;bottom:20px;left:20px;max-width:calc(100vw - 40px);pointer-events:none;padding:0}.reader-sidebar .reader-toc{pointer-events:auto;max-width:calc(100vw - 40px);width:max-content;padding:12px 16px;box-shadow:0 6px 24px #29425624}.reader-sidebar .reader-toc[open]{width:290px}.reader-sidebar .reader-toc nav{max-height:50dvh}.draft-preview .reader-sidebar{bottom:150px}}
@media(max-width:500px){.collection-selector{padding:16px}.collection-tier{display:block}.tier-label{display:block;padding:0;margin-bottom:9px}.collection-tier+.collection-tier{margin-top:13px;padding-top:13px}.collection-selector .main-tag{font-size:11px;padding:6px 10px}.collection-selector .work-tag{font-size:10px;padding:4px 10px}.reader-sidebar{left:16px;bottom:18px}.reader-collection-tags .main-tag{font-size:11px}}

/* Reader entry and return controls */
.reader-toolbar{position:sticky;top:var(--reader-header-height,88px);z-index:16;display:flex;align-items:center;padding:10px 0 12px;background:var(--bg);border-bottom:1px solid var(--line);margin-bottom:12px}
.reader-toolbar .reader-back{font-size:13px;font-weight:600;gap:8px;padding:10px 18px;border-radius:10px;box-shadow:0 4px 14px #397fa923;min-height:44px}
.reader-toolbar .reader-back span{font-size:19px;line-height:1}.reader-toolbar .reader-back:hover,.reader-back-footer:hover{filter:brightness(1.08)}
.reader-back-footer{font-size:13px;font-weight:600;min-height:44px}
@media(min-width:1001px){.reader-sidebar{margin-top:var(--reader-intro-height,320px);top:calc(var(--reader-header-height,88px) + 18px)}.reader-sidebar.compact-toc .reader-toc{padding:12px 14px;box-shadow:none}.reader-sidebar.compact-toc summary{cursor:pointer;font-size:12px}.reader-sidebar.compact-toc summary:after{content:'⌄';float:right;color:var(--muted);margin-left:10px}.reader-sidebar.compact-toc details[open] summary:after{content:'⌃'}.reader-sidebar.compact-toc .reader-toc nav{margin-top:10px}}
@media(max-width:1000px){.reader-sidebar{margin-top:0}.reader-toolbar{padding:9px 0 10px}.reader-toolbar .reader-back{font-size:12px;padding:9px 15px}}