:root{--green-700: #4f9a63;--green-600: #69ad78;--green-100: #eaf6ed;--blue-600: #2563eb;--red-600: #c93535;--red-100: #fdeaea;--amber-700: #9a6400;--amber-100: #fff4d6;--ink: #1f2937;--muted: #6b7280;--line: #dde3ea;--soft-line: #edf0f4;--canvas: #f5f7fa;--surface: #ffffff;--surface-alt: #f9fafb;--shadow: 0 1px 2px rgba(16, 24, 40, .08)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--canvas);font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;font-size:14px}button,select,input{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:248px minmax(0,1fr);grid-template-rows:64px minmax(0,1fr);transition:grid-template-columns .16s ease}body.sidebar-collapsed .app-shell{grid-template-columns:76px minmax(0,1fr)}.topbar{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 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760px){.topbar{height:auto;min-height:64px;flex-wrap:wrap;padding:12px}.top-actions{width:100%}.select-control{min-width:0;flex:1}.summary-grid,.process-panel{grid-template-columns:1fr 1fr}.file-drop-zone{align-items:stretch;flex-direction:column}}