@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap";*,:before,:after{box-sizing:border-box}:root{--bg:#080c14;--bg2:#0d1320;--bg3:#111827;--card-bg:#0f1623;--header-bg:#0d1320;--border-color:#1e2d45;--text-color:#e2eaf5;--text-h:#fff;--sub-text:#5a7499;--dim-text:#2e4060;--neon:#00b4ff;--neon-glow:#00b4ff59;--neon-dim:#00b4ff1a;--neon-border:#00b4ff66;--primary:#00b4ff;--green:#00e5a0;--green-glow:#00e5a04d;--green-bg:#00e5a014;--green-border:#00e5a04d;--red:#ff4d6d;--red-glow:#ff4d6d4d;--red-bg:#ff4d6d14;--red-border:#ff4d6d4d;--yellow:#ffd60a;--yellow-glow:#ffd60a4d;--yellow-bg:#ffd60a0f;--yellow-border:#ffd60a4d;--purple:#b48cff;--teal:#00d4c8;--shadow-card:0 4px 24px #00000080, 0 1px 2px #0000004d;--glow-neon:0 0 12px var(--neon-glow), 0 0 32px #00b4ff26;--glow-green:0 0 12px var(--green-glow);--glow-red:0 0 12px var(--red-glow);--glow-yellow:0 0 12px var(--yellow-glow);--radius:16px;--radius-sm:10px;--radius-xs:6px;--radius-pill:20px}body{background:var(--bg);color:var(--text-color);background-image:linear-gradient(#00b4ff08 1px,#0000 1px),linear-gradient(90deg,#00b4ff08 1px,#0000 1px);background-size:32px 32px;min-height:100vh;margin:0;padding:0;font-family:Outfit,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;line-height:1.55;transition:none}.app-layout{align-items:flex-start;min-height:100vh;display:flex}.sidebar{background:var(--card-bg);border-right:1px solid var(--border-color);box-sizing:border-box;-webkit-overflow-scrolling:touch;flex-shrink:0;width:320px;height:100dvh;padding:20px 20px 100px;transition:right .3s cubic-bezier(.4,0,.2,1);position:sticky;top:0;overflow-y:auto}.sidebar-section{margin-bottom:25px}.sidebar-section h3,.sidebar-section summary{color:var(--text-h);border-bottom:1px solid var(--neon-border);letter-spacing:.04em;cursor:pointer;outline:none;margin-top:0;margin-bottom:14px;padding-bottom:10px;font-size:1.05em;font-weight:700;position:relative}.sidebar-section h3:after,.sidebar-section summary:after{content:"";background:var(--neon);width:40px;height:2px;box-shadow:0 0 8px var(--neon-glow);position:absolute;bottom:-1px;left:0}.manage-cat-details{margin-bottom:5px}.manage-cat-header{color:var(--neon);border-bottom:1px solid var(--border-color);cursor:pointer;letter-spacing:.04em;outline:none;margin:10px 0 5px;padding-bottom:6px;font-size:.9em;font-weight:700;display:block}.manage-cat-header::-webkit-details-marker{display:none}.manage-cat-header:before{content:"▶";color:var(--sub-text);margin-right:5px;font-size:.8em;transition:transform .2s;display:inline-block}.manage-cat-details[open]>.manage-cat-header:before{transform:rotate(90deg)}.manage-cat-content{border-left:1px solid var(--border-color);margin-top:10px;margin-bottom:15px;margin-left:5px;padding-left:10px}.filter-category-group{width:100%;margin-bottom:15px}.filter-category-label{color:var(--sub-text);border-left:2px solid var(--neon);letter-spacing:.05em;text-transform:uppercase;margin-bottom:6px;padding-left:8px;font-size:.78em;font-weight:700}.filter-category-buttons{flex-wrap:wrap;gap:6px;display:flex}.category-filters{flex-direction:column;gap:8px;display:flex}.cat-btn,.site-btn{text-align:left;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg2);color:var(--sub-text);cursor:pointer;letter-spacing:.02em;padding:10px 14px;font-family:Outfit,Noto Sans JP,sans-serif;font-size:.9em;font-weight:500;transition:all .2s}.cat-btn:hover,.site-btn:hover{background:var(--neon-dim);border-color:var(--neon-border);color:var(--neon)}.cat-btn.active,.site-btn.active{background:var(--neon);color:#080c14;border-color:var(--neon);box-shadow:var(--glow-neon);font-weight:700}.bookmark-filter-btn{border-color:var(--yellow-border);background:var(--yellow-bg);color:var(--yellow)}.bookmark-filter-btn:hover{border-color:var(--yellow);color:var(--yellow);background:#ffd60a1f}.bookmark-filter-btn.active{background:var(--yellow);color:#080c14;box-shadow:var(--glow-yellow);border-color:var(--yellow)}.add-form-group,.edit-form-group{background:var(--bg2);border-radius:var(--radius-sm);border:1px solid var(--border-color);flex-direction:column;gap:8px;margin-bottom:10px;padding:14px;display:flex}.add-form-group input,.edit-form-group input{border:1px solid var(--border-color);border-radius:var(--radius-xs);box-sizing:border-box;background:var(--bg3);width:100%;color:var(--text-color);padding:10px 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