:root{--background: #f7f9ff;--surface: #ffffff;--surface-soft: #eff4fc;--surface-mid: #e3e9f0;--primary: #031632;--primary-soft: #1a2b48;--text: #07152c;--muted: #526070;--border: #c5cede;--accent: #ff6335;--accent-soft: #fff0eb;--shadow: 0 18px 45px rgba(10, 25, 47, .08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--background)}*{box-sizing:border-box}body{margin:0;background:var(--background)}button,textarea,input{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;background:linear-gradient(180deg,#f8fbff,#f3f7fc)}.header{position:sticky;top:0;z-index:20;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;height:96px;padding:0 40px;background:#ffffffe0;border-bottom:1px solid 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