:root{--bg-color: #124076;--bg-dark: #0A2647;--grid-color: rgba(255, 255, 255, .15);--color-light: #FFFFFF;--color-cyan: #D2E8FF;--color-blue: #8AB8E6;--color-gold: #C9A962;--border-subtle: rgba(255, 255, 255, .3);--font-mono: "Courier New", Courier, monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-mono);background-color:var(--bg-color);color:var(--color-light);min-height:100vh;background-image:linear-gradient(var(--grid-color) 1px,transparent 1px),linear-gradient(90deg,var(--grid-color) 1px,transparent 1px);background-size:40px 40px}.app{display:flex;flex-direction:column;min-height:100vh}.header{padding:16px 24px;border-bottom:1px solid 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