:root{--bg: #080b13;--surface: #0d111c;--panel: #101722;--card: rgba(16,23,34,.94);--card-hover: rgba(22,31,46,.98);--border: rgba(157,178,224,.12);--border-strong: rgba(157,178,224,.2);--text: #e9eef8;--text-secondary: #8d9bb6;--text-muted: #5c6b83;--accent: #7080ff;--accent-2: #28d7c6;--pink: #f16da9;--shadow: 0 20px 42px rgba(0,0,0,.28);--shadow-sm: 0 8px 22px rgba(0,0,0,.18);--radius: 16px;--radius-sm: 12px;--font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;color-scheme:dark}[data-theme=light]{--bg: #f6f7fa;--surface: #ffffff;--panel: #f0f2f6;--card: rgba(255,255,255,.96);--card-hover: rgba(255,255,255,1);--border: rgba(120,130,160,.12);--border-strong: rgba(120,130,160,.22);--text: #1a1d26;--text-secondary: #5a6275;--text-muted: #8a92a5;--accent: #4f5fc7;--accent-2: #1aa8a0;--pink: #d14b82;--shadow: 0 20px 42px rgba(0,0,0,.08);--shadow-sm: 0 8px 22px rgba(0,0,0,.06);color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:var(--font);transition:background .25s ease,color .25s ease}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid rgba(112,128,255,.55);outline-offset:2px}.app-shell{min-height:100vh;display:flex;background:var(--bg)}.sidebar{width:240px;flex:none;min-height:100vh;max-height:100vh;overflow:hidden;padding:26px 16px 20px;display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border);position:sticky;top:0;left:0}.brand{display:flex;align-items:center;gap:11px;padding:0 8px}.brand-symbol{width:40px;height:40px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#7c8cff,#9b6bff 52%,#c05ee8);box-shadow:0 6px 18px 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ease}.add-group-link:hover{color:var(--accent);border-color:#7080ff73;background:#7080ff0f}.sidebar-bottom{margin-top:auto;padding-top:18px;border-top:1px solid var(--border);display:grid;gap:10px}.user-mini{display:flex;align-items:center;gap:10px;padding:0 4px}.user-mini .avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:12px;font-weight:700}.user-mini div:last-child{display:grid;gap:2px}.user-mini span{font-size:12px;font-weight:600;color:var(--text)}.user-mini small{font-size:10px;color:var(--text-muted)}.login-link,.logout-link{width:100%;min-height:38px;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:0 10px;background:var(--panel);color:var(--text-secondary);font-size:12px;transition:all .15s ease}.login-link:hover,.logout-link:hover{color:var(--accent);border-color:#7080ff73;background:#7080ff14}.main{min-width:0;flex:1;position:relative;overflow:hidden}.background-lines{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;opacity:.35;background-image:linear-gradient(rgba(147,166,214,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(147,166,214,.05) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:linear-gradient(to bottom,transparent,black 18%,black 75%,transparent);mask-image:linear-gradient(to bottom,transparent,black 18%,black 75%,transparent)}.topbar{height:80px;position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:24px;padding:0 40px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg) 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