:root{--bg: #f7f7fb;--paper: #f7f7fb;--paper-raised: #ffffff;--card: #ffffff;--ink: #0f1222;--ink-soft: #6b7280;--ink-faint: #9aa0ac;--signal: #6d5ef8;--signal-ink: #5443f0;--signal-soft: #efecff;--line: #e8e8f0;--line-soft: #f0f0f6;--danger: #ef4444;--danger-soft: #fdecec;--good: #16a34a;--good-soft: #e7f6ec;--warn: #f59e0b;--warn-soft: #fef3e0;--shadow-sm: 0 1px 2px rgba(15, 18, 34, .04);--shadow-card: 0 1px 3px rgba(15, 18, 34, .04), 0 1px 2px rgba(15, 18, 34, .03);--radius-lg: 14px;--radius-md: 10px;--radius-sm: 7px;--font-display: "Inter", "Hind Siliguri", "Segoe UI", sans-serif;--font-body: "Inter", "Hind Siliguri", "Noto Sans Bengali", "Segoe UI", "Nirmala UI", sans-serif}:root[data-theme=dark]{--bg: #0b0c14;--paper: #0b0c14;--paper-raised: #14151f;--card: #14151f;--ink: #f2f2f7;--ink-soft: #9498a8;--ink-faint: #6c7080;--signal: #8b7bff;--signal-ink: #a79bff;--signal-soft: rgba(139, 123, 255, .14);--line: #24263a;--line-soft: #1c1e2c;--danger: #f87171;--danger-soft: rgba(248, 113, 113, .12);--good: #4ade80;--good-soft: rgba(74, 222, 128, .12);--warn: #fbbf24;--warn-soft: rgba(251, 191, 36, .12);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-card: 0 1px 3px rgba(0, 0, 0, .3)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;font-size:14px}::selection{background:var(--signal-soft)}.app-shell{display:flex;height:100vh;overflow:hidden}.app-right{flex:1;min-width:0;display:flex;flex-direction:column;height:100vh}.app-scroll{flex:1;overflow-y:auto}.sidebar{width:240px;flex-shrink:0;background:var(--paper-raised);border-right:1px solid var(--line);display:flex;flex-direction:column;transition:width .15s ease;overflow:hidden}.sidebar.collapsed{width:68px}.sidebar .brand-row{display:flex;align-items:center;gap:10px;padding:16px 16px 14px;border-bottom:1px solid var(--line);flex-shrink:0}.sidebar 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