@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";
:root{--background:#f8fafc;--foreground:#111827;--primary:#1a73e8;--primary-hover:#1765cc;--surface:#fff;--surface-hover:#f1f5f9;--border:#e2e8f0;--cell-border:#cbd5e1;--table-header-bg:#f3f4f6;--accent:#2563eb;--error:#ef4444;--text-muted:#64748b}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--foreground);min-height:100vh;font-family:Inter,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:Inter,sans-serif}h1,h2,h3,h4{letter-spacing:-.01em;color:var(--foreground);font-weight:700}.glass{background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -2px #0000000d}.btn-primary{background:var(--primary);color:#fff;border:none;border-radius:6px;justify-content:center;align-items:center;gap:.5rem;padding:.6rem 1.25rem;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 8px #1a73e833}.btn-primary:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;transform:none}.btn-secondary{color:var(--foreground);border:1px solid var(--border);background:#fff;border-radius:6px;justify-content:center;align-items:center;gap:.5rem;padding:.5rem 1rem;font-weight:500;transition:all .2s;display:inline-flex;box-shadow:0 1px 2px #0000000d}.btn-secondary:hover{background:var(--surface-hover);border-color:#cbd5e1}.btn-danger{color:var(--error);background:#fef2f2;border:1px solid #fca5a5;border-radius:6px;padding:.5rem 1rem;font-weight:500;transition:all .2s}.btn-danger:hover{border-color:var(--error);background:#fee2e2}.input-text{background:var(--surface);border:1px solid var(--border);color:var(--foreground);border-radius:8px;width:100%;padding:.75rem 1rem;font-family:Inter,sans-serif;transition:all .2s}.input-text:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #1a73e826}.container{max-width:1200px;margin:0 auto;padding:2rem}.header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;display:flex}.logo{color:var(--primary);font-size:1.5rem;font-weight:700}.spreadsheet-container{border:1px solid var(--cell-border);background:#fff;border-radius:4px;overflow-x:auto;box-shadow:0 1px 3px #0000001a}.spreadsheet-table{border-collapse:collapse;min-width:100%}.spreadsheet-table th{background:var(--table-header-bg);border-bottom:1px solid var(--cell-border);border-right:1px solid var(--cell-border);color:var(--text-muted);z-index:10;-webkit-user-select:none;user-select:none;font-size:.85rem;font-weight:600;position:sticky;top:0}.spreadsheet-table td{border-bottom:1px solid var(--cell-border);border-right:1px solid var(--cell-border);background:#fff;padding:0;position:relative}.spreadsheet-input{width:100%;height:100%;color:var(--foreground);background:0 0;border:none;outline:none;padding:.6rem .75rem;font-family:Inter,sans-serif;font-size:.9rem}.spreadsheet-input:focus{box-shadow:inset 0 0 0 2px var(--primary);z-index:2;background:#fff;position:relative}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.3s forwards fadeIn}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--background)}::-webkit-scrollbar-thumb{border:2px solid var(--background);background:#cbd5e1;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}