.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.app-header{display:flex;align-items:center;gap:22px;padding:14px max(24px,calc((100vw - 1500px)/2));border-bottom:1px solid var(--color-border);background:var(--color-surface)}
.identity{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:1.45rem;font-weight:var(--font-weight-light);letter-spacing:.13em;white-space:nowrap}.identity img{height:42px;width:34px}
.search-field{flex:1;max-width:650px;margin-left:auto}.new-link{text-decoration:none;white-space:nowrap;display:inline-flex;align-items:center}.theme-switcher{white-space:nowrap}
.workspace{display:grid;grid-template-columns:minmax(275px,340px) minmax(0,1fr);max-width:1500px;margin:auto;min-height:calc(100vh - 72px)}
.browse{border-right:1px solid var(--color-border);min-width:0}.filters{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:20px 16px;border-bottom:1px solid var(--color-border)}
.article-list{overflow:auto;max-height:calc(100vh - 190px)}.article-list button{display:block;width:100%;padding:14px 18px;border:0;border-bottom:1px solid var(--color-border);background:transparent;color:var(--color-text);text-align:left;cursor:pointer}.article-list button:hover,.article-list button.is-active{background:var(--color-surface-alt)}.article-list strong,.article-list small{display:block}.article-list strong{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.article-list small{margin-top:5px;color:var(--color-text-muted);font-size:var(--font-size-xs)}
.reading{padding:42px clamp(24px,5vw,76px);min-width:0}.empty{color:var(--color-text-muted);padding-top:15vh;text-align:center}.article-heading,.editor-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;border-bottom:1px solid var(--color-border);padding-bottom:22px;margin-bottom:25px}.article-heading h1{margin-top:8px}.article-heading .text-caption{margin:0}.editor-heading{align-items:center}.editor-metadata{display:grid;grid-template-columns:2fr 1fr;gap:18px}.domain-field{margin:20px 0;padding:0;border:0}.domain-options{display:flex;flex-wrap:wrap;gap:12px;margin-top:9px}.domain-options .choice{padding:7px 10px;border:1px solid var(--color-border);border-radius:var(--radius-small);background:var(--color-surface)}
#article-form{display:grid;gap:18px}.source-input{min-height:260px;resize:vertical;font-family:var(--font-family-mono);font-size:var(--font-size-sm);line-height:1.6}.editor-actions{display:flex;align-items:center;gap:18px}.preview-heading{display:flex;align-items:center;gap:20px;margin:42px 0 20px;border-bottom:1px solid var(--color-border);padding-bottom:12px}#message,#preview-error{color:var(--color-error-text);font-size:var(--font-size-sm)}
@media(max-width:900px){.app-header{gap:12px;padding:10px 18px}.theme-switcher__label{display:none}.workspace{grid-template-columns:minmax(240px,30%) minmax(0,1fr)}.reading{padding:28px}.filters{grid-template-columns:1fr}.article-list{max-height:calc(100vh - 250px)}}
@media(max-width:650px){.app-header{flex-wrap:wrap}.search-field{order:3;flex-basis:100%;max-width:none}.workspace{display:block}.browse{border-right:0;border-bottom:1px solid var(--color-border)}.filters{grid-template-columns:1fr 1fr}.article-list{max-height:210px}.reading{padding:24px 18px}.editor-metadata{grid-template-columns:1fr}}