@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=Inter:wght@400;600;800&display=swap";:root{--bg-color:#f8fafc;--surface-color:#fff;--text-primary:#0f172a;--text-secondary:#475569;--accent-color:#2563eb;--accent-soft:#2563eb14;--border-color:#e2e8f0;--card-shadow:0 10px 15px -3px #0000000a, 0 4px 6px -2px #00000005;--radius:16px}@media (prefers-color-scheme:dark){:root{--bg-color:#020617;--surface-color:#0f172a;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-soft:#3b82f61a;--border-color:#1e293b;--card-shadow:0 20px 25px -5px #0003, 0 10px 10px -5px #0000001a}}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Noto Sans JP,sans-serif;line-height:1.6}.app-container{max-width:800px;margin:0 auto;padding:3rem 1.5rem}.app-header{margin-bottom:3rem}.app-header h1{letter-spacing:-.025em;background:linear-gradient(to right, var(--accent-color), #8b5cf6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-family:Inter,sans-serif;font-size:2.25rem;font-weight:800}.meta-info{color:var(--text-secondary);font-size:.875rem;font-weight:500}.tab-navigation{scrollbar-width:none;gap:.5rem;margin-bottom:2.5rem;padding-bottom:.5rem;display:flex;overflow-x:auto}.tab-navigation::-webkit-scrollbar{display:none}.tab-btn{color:var(--text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border:1px solid #0000;border-radius:9999px;padding:.5rem 1rem;font-size:.875rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1)}.tab-btn:hover{background:var(--accent-soft);color:var(--accent-color)}.tab-btn.active{background:var(--accent-color);color:#fff;box-shadow:0 4px 12px #2563eb40}.article-list{flex-direction:column;gap:1.25rem;display:flex}.article-card{background:var(--surface-color);border-radius:var(--radius);border:1px solid var(--border-color);box-shadow:var(--card-shadow);padding:1.5rem;transition:all .3s;position:relative}.article-card:hover{border-color:var(--accent-color);transform:translateY(-4px);box-shadow:0 20px 25px -5px #0000000d}.article-card.boosted{border-left:4px solid var(--accent-color)}.card-header{align-items:center;gap:.75rem;margin-bottom:1rem;display:flex}.source-badge{background:var(--accent-soft);color:var(--accent-color);text-transform:uppercase;border-radius:6px;padding:.25rem .625rem;font-size:.7rem;font-weight:700}.boost-badge{color:#f59e0b;font-size:.7rem;font-weight:800}.score-badge{color:var(--text-secondary);margin-left:auto;font-size:.75rem;font-weight:600}.article-title{color:var(--text-primary);margin-bottom:1.25rem;font-size:1.125rem;font-weight:700;line-height:1.5;text-decoration:none;display:block}.article-title:hover{color:var(--accent-color)}.card-footer{border-top:1px solid var(--border-color);justify-content:space-between;align-items:center;padding-top:1rem;display:flex}.date{color:var(--text-secondary);font-size:.8125rem}.save-btn{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:8px;padding:.4rem .875rem;font-size:.8125rem;font-weight:600;transition:all .2s}.save-btn:hover{background:var(--bg-color);border-color:var(--text-secondary)}.save-btn.saved{color:#fff;background:#10b981;border-color:#10b981}@keyframes shimmer{0%{opacity:.5}50%{opacity:1}to{opacity:.5}}.loading{height:60vh;color:var(--accent-color);justify-content:center;align-items:center;font-weight:700;animation:1.5s infinite shimmer;display:flex}