*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-card-hover: #1f2333;--border: #2a2d3e;--text: #e2e8f0;--text-muted: #8892a4;--text-link: #7c9ef8;--text-link-hover: #a5bcff;--accent: #7c9ef8;--radius: 10px;--shadow: 0 2px 8px rgba(0, 0, 0, .4)}html,body{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:15px}.app{min-height:100vh;display:flex;flex-direction:column}.app-main{flex:1;max-width:1200px;margin:0 auto;padding:0 16px 48px;width:100%}.app-header{background:#0a0c14;border-bottom:1px solid var(--border);padding:0 16px;position:sticky;top:0;z-index:100}.header-inner{max-width:1200px;margin:0 auto;padding:14px 0;display:flex;align-items:center;justify-content:space-between;gap:16px}.header-brand{display:flex;align-items:baseline;gap:10px}.header-logo{font-size:22px}.header-title{font-size:20px;font-weight:700;letter-spacing:-.3px;color:var(--text)}.header-tagline{font-size:13px;color:var(--text-muted)}.refresh-btn{background:var(--accent);color:#0f1117;border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s;white-space:nowrap}.refresh-btn:hover:not(:disabled){opacity:.85}.refresh-btn:disabled,.refresh-btn.refreshing{opacity:.5;cursor:not-allowed}.source-filter{display:flex;flex-wrap:wrap;gap:8px;padding:20px 0 16px}.source-filter-loading{height:40px}.filter-btn{background:var(--bg-card);color:var(--text-muted);border:1px solid var(--border);border-radius:20px;padding:6px 14px;font-size:13px;cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:6px}.filter-btn:hover{border-color:var(--accent);color:var(--text)}.filter-btn.active{background:var(--accent);color:#0f1117;border-color:var(--accent);font-weight:600}.filter-count{font-size:11px;opacity:.75;background:#ffffff1a;padding:1px 5px;border-radius:10px}.filter-btn.active .filter-count{background:#0003}.feed-count{font-size:13px;color:var(--text-muted);margin-bottom:16px}.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px}.news-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:border-color .15s,background .15s;display:flex;flex-direction:column;gap:10px}.news-card:hover{border-color:#3d4160;background:var(--bg-card-hover)}.news-card-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.source-badge{font-size:11px;font-weight:700;letter-spacing:.3px;padding:2px 8px;border-radius:4px;color:#fff;text-transform:uppercase}.news-date{font-size:12px;color:var(--text-muted)}.news-score{font-size:12px;color:var(--text-muted);margin-left:auto}.news-card-title{font-size:15px;font-weight:600;line-height:1.4}.news-card-title a{color:var(--text);text-decoration:none;transition:color .15s}.news-card-title a:hover{color:var(--text-link-hover)}.news-card-summary{font-size:13px;color:var(--text-muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.news-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}.tag{font-size:11px;color:var(--text-muted);background:#7c9ef814;border:1px solid rgba(124,158,248,.15);padding:2px 7px;border-radius:4px}.feed-status{text-align:center;padding:64px 16px;color:var(--text-muted);display:flex;flex-direction:column;align-items:center;gap:12px}.feed-error p{color:#f87171}.muted{color:var(--text-muted);font-size:13px}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.load-more{margin-top:32px;text-align:center}.btn{background:var(--bg-card);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 24px;font-size:14px;cursor:pointer;transition:all .15s}.btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.btn:disabled{opacity:.5;cursor:not-allowed}.app-footer{border-top:1px solid var(--border);padding:20px 16px;text-align:center;font-size:12px;color:var(--text-muted);display:flex;flex-direction:column;gap:4px}@media (max-width: 600px){.header-tagline{display:none}.news-grid{grid-template-columns:1fr}.header-title{font-size:17px}}