:root{--space-dark:#0b0c10;--neon-cyan:#66fcf1;--glass-bg:#1f283399;--text-light:#c5c6c7}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(135deg, var(--space-dark) 0%, #000 100%);color:var(--text-light);flex-direction:column;align-items:center;min-height:100vh;padding:2rem 1rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;display:flex}#app{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid #66fcf133;border-radius:16px;flex-direction:column;flex:1;align-items:center;width:100%;max-width:900px;margin-bottom:2rem;padding:2.5rem;display:flex;box-shadow:0 8px 32px #00000080}#app h1{color:var(--neon-cyan);text-align:center;text-transform:uppercase;letter-spacing:2px;text-shadow:0 0 10px #66fcf166;margin-bottom:1.5rem;font-size:2.2rem}#app img,#app iframe{border:1px solid #66fcf166;border-radius:12px;max-width:100%;height:auto;margin-bottom:1.5rem;box-shadow:0 0 20px #0009}#app iframe{width:100%;height:450px}#app .explanation{text-align:justify;color:#e0e0e0;font-size:1.1rem;line-height:1.7}.site-footer{text-align:center;color:#8892b0;width:100%;padding:1rem;font-size:.9rem}.loading{color:var(--neon-cyan);animation:1.5s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}