*{box-sizing:border-box}body{color:#222;background:#f4f4f4;margin:0;font-family:system-ui,sans-serif}.navbar{z-index:100;background:#fff;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:.75rem 1.5rem;display:flex;position:sticky;top:0;box-shadow:0 1px 4px #0000001a}.nav-brand{align-items:center;gap:.5rem;font-weight:600;display:flex}.nav-brand .logo{width:32px;height:32px}.nav-toggle{cursor:pointer;background:0 0;border:none;font-size:1.5rem;display:none}.nav-links{gap:1.5rem;margin:0;padding:0;list-style:none;display:flex}.nav-links a{color:#222;font-weight:500;text-decoration:none}.nav-links a:hover{color:#2563eb}.nav-auth{align-items:center;display:flex}.ms-signin-btn{color:#fff;cursor:pointer;background:#2f2f2f;border:none;align-items:center;gap:.6rem;padding:.5rem 1rem;font-size:.9rem;display:flex}.ms-signin-btn:hover{background:#1b1b1b}.ms-logo{width:18px;height:18px}.user-profile{align-items:center;gap:.75rem;display:flex}.signout-btn{cursor:pointer;background:#fff;border:1px solid #ccc;border-radius:4px;padding:.4rem .8rem}.hero{justify-content:center;padding:4rem 2rem;display:flex}.layer-stack{width:100%;max-width:600px;height:320px;position:relative}.layer-card{border-radius:12px;transition:transform .15s ease-out;position:absolute;inset:0}.layer-back{z-index:1;background:#bfdbfe;transform:translate(20px,20px)}.layer-mid{z-index:2;background:#93c5fd;transform:translate(10px,10px)}.layer-front{z-index:3;text-align:center;background:#fff;flex-direction:column;justify-content:center;align-items:center;padding:2rem;display:flex;box-shadow:0 10px 30px #00000026}.layer-front h1{margin:0 0 .5rem;font-size:1.5rem}.section{max-width:1000px;margin:0 auto;padding:3rem 1.5rem}.section h2{text-align:center;margin-bottom:2rem}.card-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;display:grid}.card{text-align:center;background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px #00000014}.card-icon{margin-bottom:.5rem;font-size:2rem}.chart-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;display:grid}.chart-card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px #00000014}button#clicker{color:#fff;cursor:pointer;background:#2563eb;border:none;border-radius:4px;padding:.5rem 1rem;font-size:1rem}button#clicker:hover{background:#1d4ed8}footer{text-align:center;color:#666;padding:2rem;font-size:.9rem}@media (max-width:700px){.nav-toggle{display:block}.nav-links{flex-direction:column;order:3;width:100%;padding-top:1rem;display:none}.nav-links.open{display:flex}}