:root{--primary:#3b82f6;--primary-hover:#2563eb;--secondary:#8b5cf6;--accent:gold;--success:#34d399;--danger:#ef4444;--bg-main:#f0f9ff;--surface:#fff;--text-main:#1e293b;--text-muted:#64748b;--radius-lg:24px;--radius-md:16px;--shadow:0 10px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--font-main:"Outfit", sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-main);background-color:var(--bg-main);color:var(--text-main);-webkit-user-select:none;user-select:none;margin:0;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}button{cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;font-family:inherit;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}button:active{transform:scale(.95)}.glass-card{-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fffc;border:1px solid #ffffff4d}.premium-btn{background:var(--primary);color:#fff;border-radius:var(--radius-md);padding:16px 32px;font-size:1.1rem;font-weight:600;box-shadow:0 4px 14px #3b82f663}.premium-btn:hover{background:var(--primary-hover);box-shadow:0 6px 20px #3b82f63b}.secondary-btn{background:var(--surface);color:var(--text-main);border-radius:var(--radius-md);border:1px solid #e2e8f0;padding:12px 24px;font-weight:500}.nav-container{z-index:1000;justify-content:space-around;align-items:center;width:calc(100% - 48px);max-width:600px;height:72px;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.nav-item{color:var(--text-muted);flex-direction:column;align-items:center;gap:4px;font-size:.75rem;font-weight:500;text-decoration:none;display:flex}.nav-item.active{color:var(--primary)}.container{width:100%;max-width:800px;margin:0 auto;padding:24px}h1{background:linear-gradient(135deg, var(--primary), var(--secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:8px;font-size:2rem;font-weight:800}.word-card{justify-content:space-between;align-items:center;margin-bottom:16px;padding:24px;display:flex}.word-main{font-size:1.5rem;font-weight:700}.meaning-sub{color:var(--text-muted);font-size:1rem}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.animate-bounce{animation:2s infinite bounce}