:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;--app-font-scale: 1;font-size:calc(16px * var(--app-font-scale));color-scheme:light dark}body{margin:0}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-layout__header{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;border-bottom:1px solid #ccc}.app-layout__brand{font-weight:700;text-decoration:none}.app-layout__nav{display:flex;gap:.75rem;flex:1 1 auto}.app-layout__nav a{text-decoration:none}.app-layout__nav a.active{font-weight:700}.app-layout__main{padding:1rem;max-width:1200px;margin:0 auto;width:100%}.app-layout__auth{display:inline-flex;align-items:center;gap:.5rem}.timeline__list,.manage__feed-list,.manage__category-list,.block__items{list-style:none;padding:0;margin:0}.timeline__banner,.timeline__gap{display:flex;gap:.5rem;align-items:center;padding:.5rem 1rem;margin-bottom:.5rem;background:#fff7d6;border:1px solid #d4b94a}.category-selector{display:flex;gap:.25rem;flex-wrap:wrap;margin-bottom:.5rem}.category-selector .is-active{font-weight:700}.manage__section{border:1px solid #ddd;padding:1rem;margin-bottom:1rem}.manage__feed-row{display:grid;grid-template-columns:1fr 1.5fr auto;gap:.5rem;align-items:center;padding:.25rem 0;border-bottom:1px dashed #eee}.manage__mapping{border-collapse:collapse}.manage__mapping th,.manage__mapping td{border:1px solid #ddd;padding:.25rem .5rem;text-align:center}.settings__field{display:flex;align-items:center;gap:.5rem;margin:.25rem 0}