:root{--navy: #0D1F4C;--navy-light: #1a3366;--navy-dark: #081530;--gold: #C9A84C;--gold-light: #dfc06a;--gold-pale: #f5ecd4;--white: #ffffff;--bg: #f8faff;--text: #1a1a2e;--text-muted: #6b7280;--border: #e2e8f0;--shadow: 0 4px 24px rgba(13,31,76,.1);--shadow-lg: 0 8px 40px rgba(13,31,76,.15);--radius: 12px;--radius-lg: 20px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.app{min-height:100vh}.navbar{background:var(--navy);padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px 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a{color:var(--gold);text-decoration:none}.footer a:hover{text-decoration:underline}@media (max-width: 600px){.landing-hero{padding:60px 20px 80px}.hero-stats{gap:24px}.modules-section{margin-top:-28px}.quiz-body{padding:24px 16px}.quiz-card{padding:24px 20px}.joao-intro{flex-direction:column;align-items:flex-start}.chat-bubble{max-width:92%}}