:root{--brand-50:#f2f0ff;--brand-100:#e2dcfe;--brand-200:#c8bafc;--brand-300:#a58cf8;--brand-400:#825af2;--brand-500:#6830e8;--brand-600:#571ad1;--brand-700:#4e18aa;--brand-800:#421782;--brand-900:#33145d;--excel-color:#22a04c;--csv-color:#127ae2;--pdf-color:#d92626;--excel-gradient-end:#f2fcf6;--csv-gradient-end:#f1f7fe;--word-gradient-end:#fdf2f2;--gray-50:#f9fafb;--gray-100:#edeff2;--gray-200:#dcdfe5;--gray-300:#c1c5cd;--gray-400:#959ba7;--gray-500:#6c727f;--gray-600:#4f545f;--gray-700:#32363e;--gray-800:#1f2228;--gray-900:#111318;--gray-950:#0a0c0f;--bg-base:var(--gray-50);--bg-surface:#fff;--bg-elevated:var(--gray-100);--bg-overlay:#00000080;--border-subtle:var(--gray-200);--border-default:var(--gray-300);--border-strong:var(--gray-400);--text-primary:var(--gray-900);--text-secondary:var(--gray-600);--text-muted:var(--gray-400);--text-inverse:#fff;--text-on-brand:#fff;--shadow-sm:0 1px 3px #00000014, 0 1px 2px #0000000f;--shadow-md:0 4px 12px #00000014, 0 2px 6px #0000000d;--shadow-lg:0 10px 30px #0000001a, 0 4px 10px #0000000f;--shadow-xl:0 20px 60px #0000001f, 0 8px 20px #00000012;--shadow-brand:0 4px 20px #633cdc4d;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.2s cubic-bezier(.4, 0, .2, 1);--transition-slow:.3s cubic-bezier(.4, 0, .2, 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#633cdc66}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border-color:var(--border-default);box-shadow:var(--shadow-sm)}.btn-secondary:hover{border-color:var(--brand-400);color:var(--brand-500);background:var(--brand-50)}[data-theme=dark] .btn-secondary:hover{background:#191236}.btn-ghost{color:var(--text-secondary);background:0 0;border-color:#0000}.btn-ghost:hover{background:var(--bg-elevated);color:var(--text-primary)}.btn-danger{color:#fff;background:#cf1717;border-color:#b81414}.btn-danger:hover{background:#b81414;transform:translateY(-1px)}.btn-excel{color:#fff;background:linear-gradient(135deg,#1f9346,#197638);border-color:#197638;box-shadow:0 4px 14px #27945359}.btn-excel:hover{filter:brightness(1.1);transform:translateY(-1px)}.btn-csv{color:#fff;background:linear-gradient(135deg,#1173d4,#0f61b3);border-color:#0f61b3;box-shadow:0 4px 14px 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