*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:#333}header{background:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 10px #0000001a}header h1{font-size:1.5rem;color:#667eea}button{background:#667eea;color:#fff;border:none;padding:.6rem 1.2rem;border-radius:8px;cursor:pointer;font-size:1rem}button:hover{background:#764ba2}#profileMenu{position:absolute;top:4rem;right:2rem;background:#fff;padding:1rem;border-radius:8px;box-shadow:0 4px 20px #00000026;display:none}#profileMenu.show{display:block}#profileMenu button{display:block;width:100%;margin:.5rem 0}#logoutBtn{background:#dc2626}main{max-width:900px;margin:2rem auto;padding:0 2rem}#loginView{background:#fff;padding:3rem;border-radius:20px;text-align:center;max-width:500px;margin:4rem auto;box-shadow:0 20px 60px #0000004d}#loginView h2{color:#667eea;margin-bottom:2rem}#loginBtn{padding:1rem 2rem;font-size:1.1rem;border-radius:50px}#switchLoginBtn{padding:1rem 2rem;font-size:1.1rem;border-radius:50px;background:#f59e0b}#switchLoginBtn:hover{background:#d97706}#homeView{color:#fff}#homeView h2{text-align:center;font-size:2rem;margin-bottom:2rem}#loading{text-align:center;padding:2rem}#activities{display:flex;flex-direction:column;gap:1rem}.activity{background:#fff;padding:1.5rem;border-radius:12px;color:#333}.activity-header{display:flex;justify-content:space-between;margin-bottom:1rem;padding-bottom:1rem;border-bottom:2px solid #f3f4f6}.activity-type{font-size:1.2rem;font-weight:600}.victory{background:#d1fae5;color:#065f46;padding:.4rem 1rem;border-radius:20px}.defeat{background:#fee2e2;color:#991b1b;padding:.4rem 1rem;border-radius:20px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.stat{text-align:center;background:#f9fafb;padding:.75rem;border-radius:8px}.stat-label{display:block;font-size:.85rem;color:#6b7280;margin-bottom:.25rem}.stat-value{display:block;font-size:1.5rem;font-weight:700}