:root{--font-serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;--font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--bg:#faf6ef;--surface:#fffdf8;--ink:#211c15;--ink-muted:#6f6555;--rule:#e7ddcb;--accent:#b4541f;--accent-soft:#f5e6da;--radius:12px;--measure:42rem}[data-vertical=ai]{--accent:#b4541f;--accent-soft:#f5e6da}[data-vertical=security]{--accent:#1f5fb4;--accent-soft:#dce8f7}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--font-serif);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.shell{max-width:var(--measure);margin:0 auto;padding:2.5rem 1.25rem 4rem}.masthead{border-bottom:2px solid var(--accent);padding-bottom:1rem;margin-bottom:2rem}.masthead__bar{display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{font-weight:700;font-size:1.75rem;letter-spacing:-.01em;color:var(--ink)}.masthead__tagline{margin:.75rem 0 0;color:var(--ink-muted);font-style:italic;font-size:1.05rem}.switcher{display:inline-flex;gap:.25rem;background:var(--surface);border:1px solid var(--rule);border-radius:999px;padding:.25rem}.switcher__option{font-family:var(--font-sans);font-size:.85rem;font-weight:600;letter-spacing:.01em;color:var(--ink-muted);text-decoration:none;padding:.35rem .85rem;border-radius:999px;transition:background-color .15s ease,color .15s ease}.switcher__option:hover{color:var(--ink);background:var(--accent-soft)}.switcher__option[data-active]{color:var(--surface);background:var(--accent)}.feed{display:flex;flex-direction:column}.card{padding:1.5rem 0;border-bottom:1px solid var(--rule)}.card:first-child{padding-top:0}.card__title{margin:0 0 .35rem;font-size:1.4rem;line-height:1.25;font-weight:700;color:var(--ink)}.card__meta{margin:0 0 .6rem;font-family:var(--font-sans);font-size:.8rem;color:var(--ink-muted);display:flex;align-items:center;gap:.4rem}.card__source{color:var(--accent);font-weight:600}.card__summary{margin:0;font-size:1.05rem;color:var(--ink)}